PROCEEDINGS OF TUK AMER'ICAN ACADEMY OF ARTS AND SCIENCES. VOL. VIII. FROM MAY, 1868, TO MAY, 1873. SELECTED FROM THE RECORDS. BOSTON AND CAMBRIDGE: WELCH, BIGELOW, AND COMPANY. 1873. 2*^7 PROCEEDINGS OP THE AMERICAN ACADEMY OF ARTS AND SCIENCES SELECTED FROM THE RECORDS. VOL. VIII. Five hundred and ninety-fifth Meeting. May 26, 1868. — Annual Meeting. The President in the chair. It was voted that this meeting be adjourned at its close to tfie second Tuesday in June, to receive the Council's Report and for other business. The Treasurer's report was received and referred to the Auditing Committee. At the close of his report the Treasurer declined to be a can- didate for re-election. Professor Lovering presented the report of the Committee of Publication. This report was accepted. Professor Lovering presented the report of the Rumford Committee, which was accepted, and a recommendation to ap- propriate $ 1,000 from the Rumford Fund for beginning the publication of Count Rumford's works was referred to the adjourned meeting. Professor Lovering declined to be a candidate for re-election to the Rumford Committee and to the Council, on account of a proposed absence from the country. VOL. VIII. 1 2 PROCEEDINGS OF THE AMERICAN ACADEMY Professor Henck as chairman of the Library Committee presented their report, which was accepted. The following appropriations were made for the ensuing year : — For General Expenses, from the General Fund $ 2,200. " " " RumfordFund 200. For Publication . . . . . . 800. For the Library ....... 500. Professor Rogers, as chairman of the committee appointed to consider and report on Chapter VII., Section 2, of the Statutes, reported that no change in the Statute was desirable. The subject of this report was referred back to the committee. The following gentlemen were elected members of the Academy : — Samuel H. Scudder, of Cambridge, to be a Resident Fellow in Class II., Section 3. • John L. Hayes, of Cambridge, to be a Resident Fellow in Class II., Section 1. Professor W. J. Clark, President of the Massachusetts Agricultural College, to be a Resident Fellow in Class I., Section 3. Andrew D. White, President of Cornell University, Ithaca, New York, to be an Associate Fellow in Class III., Section 2. James B. Angell, President of the University of Vermont, to be an Associate Fellow in Class III., Section 4. Hon. Lewis H. Morgan, of Albany, New York, to be an Associate Fellow in Class III., Section 2. Professor T. C. Bluntschli, of Heidelberg, to be a Foreign Honorary Member in Class III., Section 1, in the place of the late Professor Mittermaier. Professor Ritschl, of Bonn, to be a Foreign Honorary Mem- ber in Class III., Section 2, in the place of the late Professor Boeckh. Professor Lassen, of Bonn, to be a Foreign Honorary Mem- ber in Class III., Section 2, in the place of the late Professor Bopp. OF ARTS AND SCIENCES : MAY 26, 1868. 3 Henry Longueville Mansel, LL. D., to be a Foreign Honor- ary Member in Class III., Section 1, in the place of the late Victor Cousin. The annual election resulted in the choice of the following officers for the ensuing year : — Asa Gray, President. George T. Bigelow, Vice-President. William B. Rogers, Corresponding Secretary. ■ Chauncey Wright, Recording Secretary. Theodore Lyman, Treasurer. Frank H. Storer, Librarian. Council. Thomas Hill, Josiah P. Cooke, y of lass I. John B. Hence, Louis Agassiz, Jeffries Wyman, y of Class II. Charles Pickering, Robert C. Winthrop, George E. Ellis, y of Class III. Andrew P. Peabody, Rumford Committee. James B. Francis, Joseph Winlock, Morrill Wyman, Wolcott Gibbs, William B. Rogers, Josiah P. Cooke, Frank H. Storer. Committee of Finance. Asa Gray, , ex officio, by statute. Theodore Lyman, ) Thomas T. Bouve, by election. The other Standing Committees were appointed on the nomination of the President, as follows : — 4 PROCEEDINGS OF THE AMERICAN ACADEMY Committee of Publication. Joseph Lovering, Jeffries Wyman, Francis J. Child. Committee on the Library. Francis Parkman, Charles Pickering, John Bacon. Committee to audit the Treasurer's Accounts. Charles E. Ware, Charles J. Sprague. Professor Agassiz presented the following communica- tions : — I. A report, dated Key West, April 24, from Mr. Henry Mitchell, to Professor B. Peirce, Supt. U. S. Coast Survey. 1. We have stretched profiles across Nicolas Channel, Santaren Chan- nel, and Gulf Stream from Coffins' Patches to Elbow Key Light. To mention the most interesting item first : we traced a great plateau from Coffins' almost across, and in a central portion of the Straits made rich hauls of coral, living and agglomerated. Mr. Pourtales and myself are satisfied that the reef is growing out there in 200 fathoms of water. 2. We anchored boat in the axis of the Gulf Stream (as laid down on the Coast Survey chart) and quietly observed the current, — scarcely a mile per hour. Our sounding at that point was about 550 fathoms ; no variation of velocity with depth of 75 fathoms. We expected to find an increase not far below the surface, but not an inch was found. We also anchored to the westward of the middle of the Straits, and found greater velocity than in the axis, (so miscalled because warmer.) 3. Our study of Salt Key Bank and its marginal islands will interest you. 4. Nicolas and Santaren Channels are motionless masses of water, flat bottom, 300 to 500 fathoms, — very steep banks, say 30° to 40°. The Bahamas and Salt Key Bank are plateaux raised above the level floor of the ocean abruptly. 5. In the motionless masses of water in Nicolas and Santaren Channels (where we made four current stations at anchor in 300 and OF ARTS AND SCIENCES : MAY 26, 1868. 5 500 fathoms) the decline of temperature from 79° (surface) to 41° (334 fathoms) is thoroughly determined. So, then, low temperatures have nothing to do with polar currents (which do not exist) or Gulf Stream. Tempei*ature observations are wanted in the Gulf of Providence, in this connection. II. A report, dated Key West, May 10, from Mr. L. F. Pourtales, to the Supt. U. S. Coast Survey. You have no doubt heard from Mr. Mitchell of the results of our cruise around the Salt Key Bank. In my line the results presented nothing of very great or novel interest, except a few dredgings on ap- proaching the Florida reef on our return. Since Mr. Mitchell's departure we have been engaged in running lines of soundings from the reef to deep water, combined with dredg- ings. At first we sounded and dredged on alternate- days, but by working two lines, one on the drum and the other on the reel of the donkey engine, we find no difficulty in sounding and dredging at the same time, thus making the most of the fine weather with which we have of late been favored. Thus far we have run four such lines and part of a fifth, and shall run two or three more. The results are very interesting and pretty accordant on the different lines. Beginning at the reef, the bottom ap- pears to be composed of calcareous sand or mud, rather barren, un- til we reach near the vicinity of the 100 fathoms' line, when the descent becomes less rapid or almost ceases, indicating a rocky plateau, the material of which is a highly fossiliferous recent limestone (in fact in process of formation) in larger or smaller masses, or sometimes in ledges on which the dredge is in great danger of being held fast. This bottom is quite rich in animal life, particularly Terebratula, (my T. cubensis very abundant, and another new species a little less so), Cidaris, Comatula, and Annelids. Several species of corals occur also, nearly all different from those found on the coast of Cuba, though of the same or allied genera (Stylaster, 2 sp., Distichopora, Heliopora ? and several forms of the family of Turbinolians). The Stylaster forms sometimes considerable masses. But, as I find it nearer shore, the oc- currence of corals appears to be very capricious ; you may get a dredge full of one species in one place, and not find a trace of them in many subsequent oasts in the same neighborhood. 6 PROCEEDINGS OF THE AMERICAN ACADEMY After we get in about 300 or 400 fathoms, which is reached by quite a rapid falling off at the end of the plateau or gently inclined plane, we find the fine sand or mud composed of Foraminifera which has so great an extension in deep water. This we make the end of our lines at present. The dredge brings up little from that bottom, but that little often of great interest. Thus I have from it a very fine Isis from 517 fathoms, and yesterday on the same bottom but less depth 1 obtained several specimens of a small crinoid which I have no means to determine, but which I believe to be neither a Pentacrinus nor a young Comatula. I hope to be able to dredge more over that kind of bottom on our passage home. I have thus dwelt on the results of the last two weeks' work, because I believe them to be more important than what I did during the four preceding months, during which time I have gathered a good deal of information more or less new or useful, but which did not admit of a very connected report. I hope to make use of it in proper time. At the suggestion of Professor Agassiz we have laid a wire strung with large conch shells from the reef at the Samboes to 10 fathoms, and are going to extend it to 20 fathoms, with the intention of ex- amining it in a year or two and noting the corals which may have grown on the shejls, and their increase of size in a given time. I had ordered tiles for the purpose before leaving Washington, but they were never sent, and at Mr. Mitchell's suggestion we took shells. I wish we had a greater variety of materials at our command, on account of what I mentioned before as the capriciousness of corals. Five hundred and ninety-sixth Meeting. June 9, 1868. — Adjourned Annual Meeting. The President in the chair. The Corresponding Secretary read letters relative to ex- changes, and a letter from Mr. Theodore Lyman, declining the office of Treasurer to which he was elected at the previous meeting. Professor Lovering called up the recommendation of the Rumford Committee which had been referred to this meeting, and, in accordance with the recommendation, $ 1,000 were ap- OF ARTS AND SCIENCES : JUNE 9, 1868. 7 propriated from the Rumford Fund for beginning the publi- cation of Count Rurnford's works. Mr. Charles J. Sprague was elected Treasurer. The Treasurer's report was received from the Auditing Committee and ordered to be entered on the Records. On the motion of Professor Rogers it was voted, " That the thanks of the Academy be presented to Mr. John C. Lee, for the care and fidelity with which he has discharged the duties of Treasurer of the Academy." The President called the attention of the Academy to the recent decease of Hon. Levi Lincoln and Dr. George R. Noyes of the Resident Fellows. Nominations for election into the Academy were read. The Corresponding Secretary read a portion of the follow- ing Report of the Council upon the changes which had oc- curred in the Academy during the past year, and the reading of the remainder was postponed to an adjourned meeting to be held on the fourth Tuesday in June. During the year just elapsed, death has removed from the ranks of the Academy seventeen members, of whom four were Resident Fel- lows, six Associate Fellows, and seven Foreign Honorary Members. This loss, great as it is numerically, is even more memorable from the number of distinguished names which it embraces. Besides the Home and Associate Members whose services to science, letters, and public affairs we shall have occasion to commemorate, our obituary list includes the names of Faraday, Bopp, Brewster, Mitter- maier, Boeckh, Lawrence, and Rayer of our foreign academicians, — names which in various degrees have been familiar to the world of science and letters for nearly half a century, and of which more than one has been illustrated by researches of transcendent importance, marking eras in progress and laying the foundations of new sciences. Of the entire list of members deceased within the year, it is perhaps worthy of note that all except three, Professor Jewett, Dr. Warren, and Francis Peabody, had reached quite an advanced age. Two of the number, Dr. James Jackson and President Day, had attained re- spectively to ninety and ninety-four years ; five, viz. Brewster, Mitter- maier, Boeckh, Lawrence, and Dewey, had reached or passed beyond 8 PROCEEDINGS OF THE AMERICAN ACADEMY their eightieth anniversary ; and the remaining six, Loring, Smyth, Lord, Bopp, and Faraday, had each transcended the limit of three- score and ten years. Of the home members whose services we desire to commemorate, we may appropriately begin our record with a notice of the venerable as- sociate and friend whose professional skill and wisdom we have so long ranked among our social blessings, and whose gentle benignity wins us even now as if he were still among us. Dr. James Jackson, for many years an eminent physician and the acknowledged head of the medical profession in Boston, has died during the last year at the advanced age of nearly ninety years. He was born in Newburyport in 1777, and was graduated at Harvard College in 1796. He was one of the chief founders of the Massachusetts General Hospital, and was the first and for a number of years the only physician of this institution. His clinical lectures in the hospital were continued for many years in connection with his other duties in the medical school as Professor of the Theory and Practice of Medi- cine in Harvard University. He was for seven years President of the Massachusetts Medical Society, and on the decease of Dr. Bowditch he was elected President of the Academy of Arts and Sciences in 1838, which office he accepted with the condition that he should retire from it on the following year. The intellect of Dr. Jackson was capacious, logical, exact, and un- wavering in its loyalty to honesty and truth. His social traits were genial, impulsive, and sanguine. Coming in his early life from the schools of European erudition, he brought with him a deep respect for the labor and learning, the authority and conventional prestige, of the then accepted luminaries of medical science. His methods of practice were in a high degree energetic and decisive. He believed, in common with many others of that day, that most diseases were susceptible of control, if not of removal, by the modes of artificial interference then generally in use. These opinions and habits were greatly modified, if not subdued, in the latter half of his long and observing life, so that although he never lost his professional fondness for the forms and implements of his art, and sometimes carried their use to a scrupulous degree of exactness, yet he became more tolerant of nature, more humble in his expectations from art, and more distrustful of reckless interference, whenever certain harm was to be balanced against doubt- ful good. OF AKTS AND SCIENCES, JUNE 9, 1868. 9 Dr. Jackson continued the active practice of his profession, especially as a consulting physician, and also attended annual meetings of societies to which he had been attached, for some time after he had attained the age of fourscore years. In the few last years of his life, under the joint influence of physical and mental decadence, he retired from public view. Yet he died remembered, honored, and regretted, leaving among his numerous acquaintance an appreciative freshness of memory which time had not been able to change or obscure. Charles Greely Loring, son of Caleb and Ann (Greely) Loring, was born in Boston on the 2d of May, 1794. His ancestors on his father's side were among the earliest settlers of the colony of Plymouth. Some of the prominent traits of his character indicated his Puritan origin. From his mother, the daughter of a naval hero of the Revolution, he inherited an ardent spirit of patriotism and love of liberty. His school-days were passed in Boston. Having completed his preparation for college at the Public Latin School, where he received a Franklin medal for industry and good scholarship, he entered the University in advanced standing in the year 1809, and was graduated with high honors in 1812. Immediately after leaving college, he became a member of the Law School at Litchfield, Connecticut, which, under the charge of Judges Reeve and Gould, was then the leading institu- tion for legal instruction in the United States. He finished his prepar- atory studies for the bar in the office of the Hon. Samuel Hubbai'd in Boston, and was admitted a member of the Suffolk bar in the autumn of 1815. From that time, for nearly forty years, Mr. Loring con- tinued in the active and successful practice of his profession as a lawyer and advocate, rising to be one of the acknowledged leaders of the bar, until in the year 1854, becoming somewhat weary of the con- flicts of the forum and of the constant and pressing cares and labors necessarily attendant on faithful service and devotion to the interests of his clients, which had in some degree impaired a constitution never very robust, he accepted the office of Actuary of the " Massachusetts Hospital Life Insurance Company." He continued in the discharge of the duties of this important trust until his death, which took place at his summer residence in Beverly on the 8th of October, 1867. By his first wife, Miss Ann Pierce Brace, of Litchfield, to whom he was married in 1818, Mr. Loring had four children, two sons and two daughters, who survive him. VOL. VIII. 2 10 PROCEEDINGS OP THE AMERICAN ACADEMY This short and simple narrative comprises all the leading events in the life of our deceased associate, — so true is it, that a faithful and exclusive devotion of time and talent to practice at the bar in this country, while it is pretty sure to win great professional success, is quite consistent with a quiet and uneventful life. It does not neces- sarily lead, as in England, to wide-spread distinction. A lawyer, who resolutely eschews active participation in politics and refuses to hold official stations, rarely reaches an extended public fame. Nevertheless, the qualities of mind and character which are requisite to forensic skill, and to the attainment of a high position as a lawyer and advocate, are in many respects the same as, and in none inferior to, those which dis- tinguish the successful politician and statesman, although they are exer- cised and displayed on a more narrow and less public arena. Intel- lectual capacity, trained and disciplined, so that it may at all times be ready for vigorous and efficient action, legal learning and wide general culture, courage, good temper and knowledge of mankind, are essential characteristics, without which the conflicts of the forum can- not be successfully carried on, or its triumphs surely won. All these qualities Mr. Loring possessed in an eminent degree. Endowed with good natural powers, he had cultivated them by long and assiduous study. His learning in all branches of the profession was affluent. He was especially distinguished for his thorough knowledge of the rules and principles of the commercial code. These he illustrated and ap- plied to new cases with singular force, felicity, and success. The re- ports of cases argued and adjudged in the Supreme Judicial Court of Massachusetts and in the Circuit Court of the United States, for the first circuit during the thirty years from 1825 to 1855, furnish ample evidence of the fulness and extent of his learning, and of the impor- tant part he bore in laying the foundations and giving shape and sym- metry to that branch of American jurisprudence which embraces the rights and duties of parties under mercantile and maritime contracts and transactions. It was not solely as a sound and learned lawyer that Mr. Loring was distinguished at the bar. He was also an eloquent and persuasive advocate. His eloquence and power of persuasion did not consist merely in a strict observance of the rules of rhetoric, or in well- rounded periods, or special beauty of diction. He was master of a higher and more effective order of advocacy. Strictly conscientious, and governed in the performance of his professional duty by a rigid OF ARTS AND SCIENCES : JUNE 9, 1868. 11 adherence to principle, he did not undertake the conduct of causes in the justice of which he did not fully believe. He always felt that the case of his client was a sacred trust committed to his hands. He es- poused it with all the zeal and enthusiasm of his nature. He spoke in its behalf with an earnestness, sincerity, and persuasive force which flowed from conviction. This was the main source of his power as an advocate. His keen sense of justice enabled him to see and expose with cogency and clearness the injustice which others attempted to perpetrate under the forms of law ; a hater of oppression, chicanery, and fraud, he never failed to detect them and to hold them up to abhorrence and scorn, with a power of speech which made even those who sought to profit by such base arts ashamed of their own wickedness ; with strong and active sympathies, which led him to identify himself with the cause which he pleaded, he was always sure to gain the shortest and surest way to the minds and hearts of those whom he addressed. We speak of Mr. Loring's characteristics as they were developed in the maturity of his powers, after he had attained a foremost rank as a lawyer and advocate among such men as Webster, Mason, and Choate, — great luminaries of the bar of this Commonwealth of a generation that has now passed away. It would, however, convey an erroneous impression, if it was supposed that this professional success was gained without effort. He himself was wont to attribute it to a fixed and constant habit of industry ; and certainly it is true that he was an in- defatigable worker in the field of trained human labor which he had chosen. But it was not the mere love of work or the desire of success or a wish for fame which prompted this labor. It had its origin and motive in an ever-present, conscientious sense of duty. It was this great and controlling moral quality of his nature which gave fulness and completeness to his character, and secured for him an ascendency over his equals in talent and learning. The " hai'd uses " of the pro- fession during a period of nearly forty years did not tarnish or impair it. He was always pure, single-hearted, of spotless integrity, and of unwavering fidelity to every trust. He trod no path but that of duty. His character and life afford signal proof that the profession of the law is as consistent with the purest moral culture as it is with the highest intellectual attainments. It was to the labors of his profession that Mr. Loring gave the larger portion of his active life. He declined to enter into politi- cal contests or to accept public office. There was no lack of opportu- 12 PROCEEDINGS OF THE AMERICAN ACADEMY nities if he had desired high station. The office of Justice of the Supreme Judicial Court was offered for his acceptance. Twice he de- clined an appointment to the Senate of the United States ; once on the resignation of Mr. Webster in the year 1849, and again in place of Mr. Everett in 1853. He was sincerely diffident of his capability for efficient public service. He feared lest his long and exclusive de- votion to practice at the bar had unfitted him' for the varied duties and labors of political life. Once only, after he had retired from the active pursuit of his profession, was he induced by a peculiar public exigency to serve as a member of the Senate of Massachusetts. Those who were cognizant of his eminent usefulness during this brief term of service know how great would have been the gain to the public if he had been willing to give more of his time and talents to similar labors. But although he elected the walk of private life, and expended the strength of his mature years in the zealous and faithful performance of professional duty, he was not regardless or neglectful of the claims which the community in which he lived had on that portion of his time and talents, which would be spared from the pressing cares and labors of his regular pursuits. To the cause of education, to the institutions of religion, to public chai'ities, to private benevolence, to social culture and intercourse, to the offices of friendship, he never failed to contribute his full share of whatever of duty or service or bene- faction it was in his power to render. He served for nearly twenty years, during the busiest portions of his life, as one of the Fellows of Harvard College. For many years he was superintendent of the Sunday-school connected with the religious society to which he be- longed, and always prepared himself with scrupulous fidelity to give instruction to a class of pupils under his special care. He never failed to give largely in proportion to his means to every object which seemed worthy of encouragement and support. In the social circle his frank and kindly nature, his quick and warm sympathies, and his charming conversational powers, made him always the welcome guest as well as the genial and generous host. It is not strange that a man in whose character and life so many admirable qualities were blended should have gained a wide and commanding influence in the community in which he lived. If anything had been wanting to make him the one to whom all persons turned with abiding confidence, reverence, and love, it would have been supplied by the noble enthusiasm with which OF ARTS AND SCIENCES : JUNE 9, 1868. 13 he espoused the cause of the Union and the Constitution in the late civil war. Although then approaching to the allotted age of man, his ardor, energy, and zeal in the cause of his country, showed that patriotism and love of liberty had not abated one jot or tittle of their original vigor and fire within his breast. With true civic courage, in the ear- lier days of Southern aggression, when resistance to the demands and the power of slavery was not calculated to enlist popular favor, he had stood forth as an earnest opponent of measures designed to abridge the constitutional rights of the North, and to consolidate the power of the national government in support and defence of slavery. By speech and pen he resisted the annexation of Texas, the invasion of Kansas, and the enforcement of the laws for the surrender of fugitive slaves. "When the aggressive acts of the South culminated in treason, he did not hesitate to accept the issue. Abhorrent to his kindly nature as were the horrors of a civil war, he felt that they were to be encountered fearlessly rather than to submit to a sacrifice of the rights which constitutional liberty had secured to the people of the whole country. From the breaking out of the war to its close, he was un- tiring in his efforts, both public and private, to aid the cause of the nation. Especially by his writings in 1862, on the subject of the re- lations of England and the United States growing out of the civil war ; in 1863, on the rights and duties of belligerents and neutrals with special reference to the course pursued by England towards the United States; and in 1865, in his views on reconstruction, — he contributed largely to a correct understanding of the topics on which he treated, and afforded striking proof of his ability to discuss grave questions of international and constitutional law with originality, learning, and vigor. It was Mr. Loring's supreme satisfaction to live to see the war ended, slavery abolished, peace restored, and the reconstruction of the Union in a fair way of being accomplished. It was also his grateful privilege to obey the call of his Alma Mater in the summer of 1865, and to preside over the commemorative festival of her sons in honor of those who had given their lives as a sacrifice for their country, and to welcome back those who had returned after brave and successful service in the field. The grace and dignity and tenderness with which this duty was performed by him will long live in the memory of those whose privilege it was to participate in the interesting services of that occasion. 14 PROCEEDINGS OF THE AMERICAN ACADEMY The universal sorrow occasioned by Mr. Loring's death found ex- pression from the bar, the pulpit, the bench, and the various associa- tions with which he had been connected. " Midtis ille flebilis occidit." It rarely happens that the death of a private citizen is regarded as a public loss. Such was the feeling which waited on his obsequies, and no higher tribute could have been paid to his life and character. Charles Coffin Jewett, the son of Rev. Paul Jewett, was born at Lebanon, Maine, in 1816. He was graduated at Brown University in 1835. Immediately or shortly after taking his degree, he became a member of the Theological Seminary at Andover, and completed the course of study there, yet without entering on the active duties of the clerical profession. While at Andover he commenced his bibliographi- cal labors by preparing a catalogue of the excellent Library of that institution. The rare merit of this work attracted the attention of the few men capable of an intelligent judgment in a department of litera- ture then much less cultivated than now, and led to the appointment which determined his subsequent course of life. In 1842 he was chosen Librarian of Brown University, and held the office for four years, combining with it for most of the time that of Professor of Modern Languages and Literature, to which he brought the prepara- tion, not only of diligent and faithful study, but of prolonged travel and residence on the continent of Europe. He left Providence to accept an appointment as Assistant Librarian of the Smithsonian Institution, of which he very soon was made Chief Librarian. Here he distinguished himself, not only by his enterprise and skill in endeavoring to lay the foundation of a great national library, but equally by his polemic ability in advocating the policy by which he hoped that the Smithsonian fund would be devoted primarily to that end. Professor Jewett resigned this office in 1855, and his services were immediately engaged in the initial measures for the establishment of the Boston Public Library, of which, on the completion of its organiza- tion in 1858, he was chosen first Superintendent. For thirteen years he has been soul, heart, brain, and hands of this institution, systematizing and energizing every branch of its administration, inspiring its Board of Direction with his own zeal, and stimulating its benefactors to gen- erous gifts by the assurance that the custody, arrangement, cataloguing and use of the contents of the library, would be provided for with equal wisdom and fidelity. In this charge he labored with an industry too strenuous, and with too little regard to the hygienic laws which OF ARTS AND SCIENCES: JUNE 9, 1868. 15 should have set limits to his exhausting toils, till the 8th of January- last, when he was suddenly stricken with apoplexy while engaged in his duties at the Library, soon became entirely unconscious, and died at his residence in Braintree early the next morning. Professor Jewett, as a bibliographical scholar, and as a librarian both learned and judicious, has left in this country no superior, few equals. The catalogues prepared under his auspices bear ample witness to his ability and his attainments. Few, indeed, may be able to criticise the details of a work of this class ; but there is no man who uses a library, whose revenue from it does not depend to a very great degree on its catalogue. An ill-made catalogue robs a library of half its practical worth and beneficent power. The citizens of Boston can hai'dly esti- mate, and cannot by any possibility overestimate, the reasons they have for holding our late associate in reverent and grateful remem- brance. When we consider how large a part of what the Public Library is, and of what it accomplishes, is due to him, we might not unaptly plagiarize for him from Sir Christopher Wren's tomb in St. Paul's, and inscribe among those alcoves, " Si quasris monumentum, circumspice." It is hardly necessary to say that Professor Jewett was an ac- complished scholar, conversant with good letters, both classical and modern ; had he not been so, he could not have been the bibli- ographer that he was. At the same time his mental gifts and endow- ments adorned, and were adorned by, those traits of domestic and social excellence, abounding courtesy, kindness and generosity, and Christian piety, which won for him the love in life, and the regret in death, of all who knew him, and most, of those who knew him best. Jonathan Mason Warren was born in Boston, February 5, 1811, the son of John Collins Warren and Susan Powell Mason, his wife, daughter of the late Hon. Jonathan Mason. His grandfather was Dr. John Warren, the younger brother of Dr. Joseph Warren, whose heroism and martyrdom have made the name illustrious in our history. At the age of nine he became a member of the Boston Latin School, then under the late Benjamin Apthorp Gould as its instructor. In 1827 he joined the class which had entered Harvard -College the preceding year, but was forced to leave college after a few months on account of his health. Finding himself at length in a condition to return to his labors, he 16 PROCEEDINGS OF THE AMERICAN ACADEMY beo-an the study of medicine in the year 1829 under the direction of his father. This was the beginning of a life of hardly interrupted in- dustry. Taking his medical degree in 1832, he sailed for Europe* where he remained for three years diligently pursuing his studies. On his return in 1835 he at once entered upon the practice of his profes- sion, and, his father leaving Boston for Europe in 1859, the whole re- sponsibility of a great professional business was thrown upon him at this early period of his career. In 1844 he revisited Europe, and again in 1854, partly with refer- ence to his health. But he did not receive the benefit he had hoped from this visit, and was so far from well that by the advice of Dr. James Jackson he tried the experiment of passing a winter in Rome, but without avail, and returned home an invalid, as it seemed at the time, with doubtful prospects of future health. He was at length, how- ever, so far restored as to resume practice, and in 1857 removed to his late father's house in Park Street, devoting himself mainly from this time to Surgery. His health was much shaken by two successive attacks of dysentery in the summers of 1865 and 1866. The death of his excellent brother, Mr. James Sullivan Warren, in February, 1867, was very depressing to him, and almost from this time his friends dated a perceptible change in his condition. In May it was discovered that a tumor was de- veloping itself in the abdomen. He did not, however, mention the fact, and kept at his work until the first of July, when he went to his sum- mer residence at Nahant. A fortnight later, threatening symptoms ap- peared, and, after many paroxysms of pain, and gradual decline of all the bodily powers, he died on the 19th of August. Dr. Mason Warren was the third in the direct line of descent of a family which has now for more than a century been identified with the practice of Surgery and of Medicine in this town and city of Boston. He maintained and extended the reputation which he inherited. For twenty-one years he served as a surgeon at the Massachusetts General Hospital, performing more operations during this long term than any other surgeon had performed in the institution during a similar term of duty. From the first year of his entrance on professional life to the very verge of the mortal illness which had seized him, he was en- gaged in a most laborious and extensive practice. His skill, his devo- tion to his patients, his kindness, his courtesy, made him everywhere honored and beloved. OF ARTS AND SCIENCES : JUNE 9, 1868. 17 In the midst of his busy days he found time to contribute many papers to the medical journals, and in the last year of his life he gave to the world the results of his large and long experience in an elabo- rately finished volume of more than six hundred pages, filled with the records of many most interesting, and some extraordinary, cases. Among the papers that he published the following may be mentioned as of special importance : — Account of Rhinoplastic Operations performed by himself. Boston Medical and Surgical Journal, 1840. Taliacotian Operation (flap divided seventy-two hours after the operation). — Successful Result. Boston Medical and Surgical Journal, 1843. Account of a new Operation for Closure of Fissure in the Hard Palate. New England Quarterly Journal of Medicine and Surgery, 1843. Operation for Fissures in both Hard and Soft Palate. American Journal of Medical Science, 1843. Successful Ligature of both Carotids for Erectile Tumor of Face. Ibid., 1846. Lithotrity, with the use of Ether in these Operations. Ibid., 1849. Fissures of the Soft and Hard Palate. From Transactions of the American Medical Association, 1861. On Neuralgic Affections following Injuries of Nerves. Ibid., 1864. Recent Progress in Surgery. Annual Address before the Massa- chusetts Medical Society, 1864. Surgical Observations, with Cases, 1867. In 1844, Dr. "Warren received the degree of Master of Arts from Harvard University, and in the same year he was elected Fellow of the College of Physicians and Surgeons of New York. He was at a later period honored by being chosen President of the Suffolk District Medical Society, and of the Medical Benevolent Society. Few men not pressed by urgent need have toiled so assiduously for a long course of years as Dr. Warren did to the last, in spite of all his bodily hindrances. His patients and his friends remember him wyith affection and gratitude, and the profession which he adorned will long refer to him as the worthy successor Of an unchartered inheri- tance which has outlived many royal dynasties that have been for a while its contemporaries. VOL. VIII. 3 18 PROCEEDINGS OF THE AMERICAN ACADEMY Dr. Warren married, in 1839, Anna Caspar Crowninshield, youngest daughter of Hon. Benjamin Williams and Mary (Boardman) Crownin- shield, who survives him. He leaves six children, five daughters and a son, John Collins Warren, now studying medicine in Germany. Jeremiah Day, the son of a Congregational minister in New Pres- ton, Litchfield County, Connecticut, was born August 3, 1773. He was graduated at Yale College in 1795, and then took charge of the school in Greenfield, a parish of the same State, which Dr. Dwight had set up, and which he left to succeed Dr. Stiles in the Presidency of Yale College. Next Mr. Day was a tutor in Williams College, then recently founded, and after two years spent in this office accepted a similar one from his own Alma Mater. Here, having qualified him- self to preach, he exercised his gift in the neighborhood of New Haven, until in 1801 he was attacked with hemorrhage, and was ad- vised to go to Bermuda for his health. Soon after his departure, in the same year, the President and Fellows of Yale College gave him the chair of Mathematics and Natural Philosophy. But he returned from the island wholly unfit to discharge any college duties, and, as he thought, destined to speedy death. He took refuge at his father's house, feeble, melancholy, and apparently sinking, until a treatment of reduc- tion which had been tried upon him was abandoned, and tonics restored him to some degree of health. In the summer of 1803 he entered on the duties of his professorship, not taking a heavy burden at first, but by degrees enabled to assume a due share of labor, and to fill his place in the College with efficiency and success. He was, however, always what may be called a man of feeble health, always obliged to take great precautions against exposure, and to govern himself by the strictest rules both as to diet and amount of exertion. For the development of the man this trial from bodily weakness and from temporary despondency was attended with the happiest results. By nature given to prudence and moderation, he grew in these re- spects from his ailments ; he had to study his constitution and to exercise self-control ; he was obliged to be orderly and methodical ; all these habits, thus learned or thus strengthened, helped his intellectual and moral nature, and he attained in this way a degree of practical wisdom which was one of his striking characteristics. The frail body, also, by discipline resisted the causes of decay, so that the man, of whose life at thirty all despaired, lived beyond the age of ninety-four with full vig- or of intellect. OF ARTS AND SCIENCES : JUNE 9, 1868. 19 From 1803 until 1817 Professor Day filled the chair to which he was first appointed, and on the death of Dr. Dwight, with very great shrinking, accepted the vacant office of President. The two men were in many respects quite opposite. The one was impulsive, rhetori- cal, brilliant, formed to command ; the other calm, philosophical, with- out brilliancy, unwilling to lead. But the choice, as the event showed, was a wise one. During the twenty-nine years of his presidency the College grew steadily and surely. He had the respect and esteem of all. His success showed, we think, that colleges, which often strive to find brilliant untried men for their principal officers, men unused to college ways and ignorant of that queer thing, a college student, might do better sometimes, if they looked after a noiseless worker, experienced in his calling, honored by those around him, who has proved himself equal to all the emergencies of discipline and of instruction in the past. At the age of seventy-three, President Day laid down his office, not be- cause he felt any peculiar infirmities of old age creeping over him, but be- cause he wished to resign before infirmities should weaken his judgment and lead him to outstay his time. Followed by the love of all who had known him, — among whom were all the two thousand and \\\e hundred to whom he had given a degree, — he retired into private life, yet he was not wholly unconnected with the College, having been on his resignation chosen into the Board of Fellows. In this corporation he served until just before his death, and thus had had, as an officer and a Fellow, a share in the government of the College for sixty-seven years. His life during his retirement was serene and happy, his mind retained its strength and its interest in the affairs of the world until his last illness, and even in those two or three days before his end, the power of expression, rather than that of thinking, gave way. He closed his eyes in peace on the 22d of August, 1867, when "he had reached the age of ninety-four years and nineteen days. Perhaps the leading trait of President Day's character was the har- mony of his whole nature, in which you could scarcely say wliat was due to native qualities, what to philosophical training, and what to Christian principle. His mind by nature had certain very valuable traits of the more solid and unpretending sort. Imagination was not remarkable among them, nor was he in any marked degree original, nor could he be called a deeper thinker than many men are. But a person familiar with him would be struck with his uncommon clear- 20 PROCEEDINGS OF THE AMERICAN ACADEMY ness and precision in thought and expression, with his great good sense and the perfection of his practical judgment, with the admirable method which he showed in everything. In the composition of his character, the two qualities which were nearest to the border-land of defects were cau- tion and reserve. The latter was quite noticeable. He never spoke of himself, — neither of what he had done nor even of the maladies which had afflicted him during his later life. But his reserve, not being the effect of pride or of timidity, but rather of humility and of the absence of selfish affections, while it rendered men somewhat un- familiar with him, detracted nothing from his power to inspire respect and veneration. So also his caution was not properly timidity, but the natural foundation of a prudence, which being under the control of principle, always carried the judgment of others with it. His religious principle blended beautifully with a natively blameless character, so that one could not separate the two. It was not put on, but seemed as much a part of his life as were his intellectual qualities. He never spoke of himself, he showed his religious life by deeds, not by words ; but there was an impression conveyed to all who knew him that he was not only a blameless but a holy man, one who " walked with God." And a spirit of sweet peace accompanied him wherever he went, together with a dignity which was the shadow cast by his pure and elevated life, which made no claims and sought no homage, but received it as an involuntary tribute. As a man of science and of philosophical thought, President Day entered into the two fields of Mathematics and Metaphysics. From the time of his leaving the mathematical chair, upon his election to the presidency, he was almost entirely devoted to the other branch of study and instruction. During his professorship he felt the want of elementary treatises in the mathematical course which should be fitted to the peculiar necessities of American colleges. He accordingly first prepared his Algebra, which was given to the world in 1814, and from that day to this has appeared in a multitude of editions. Many years afterwards he undertook a revision of it with the help of a younger friend, which carried the resolution of the higher equations and some other branches much beyond the limits of the original work. Two years after his Algebra appeared his treatise on Mensuration and Plane Trigonometry, and in 1817 his Navigation and Surveying. These also have been often reprinted, but never had the circulation which was reached at an early day by the Algebra. Of these works, OF ARTS AND SCIENCES : JUNE 9, 1868. 21 especially of the Algebra, it may be said that, while they are element- ary in the strictest sense, and perhaps smooth the road too much for the learner, they have very great merits. They are clear and precise in definition, simple and elegant in explanation, proportionate in their parts ; they leave no difficulties behind to embarrass the learner ; they make such a selection from a wide subject as his wants seem to require, reserving the higher and abstruser parts of the science for more ad- vanced students. In short, if the American system is a right one, of leading all the members of the younger classes, with different capaci- ties and tastes, along the same track, nothing could be better than a work constructed on the principles which he followed in his mathe- matical works. In the Department of Natural Philosophy, which then was assigned in his College to the Professor of Mathematics, he was able to under- take few or no original investigations. Without good instruments,- with a very imperfect library at his command, with feeble health, he could do little more than satisfy the claims of the lecture-room and of the instructor's chair. President Day brought to the study of Metaphysics and Morals a well-trained mathematical mind and sound common sense. In his day, Locke's reign was almost undisturbed, except so far as the Scotch philosophers had modified Locke's system. He claimed that some of Cousin's strictures on Locke proceeded from a misunderstanding of that philosopher. In the doctrine of the will he mainly followed Jonathan Edwards, and he published two treatises in explanation or defence of his views. The " Inquiry respecting the Self-determining Power of the Will or Contingent Volition," first published in 1838, and afterwards in an enlarged edition eleven years later, was suggested by a translation of Cousin's Psychology, of which he had written a review for the Christian Spectator, a journal published in New Haven. As the re- view was too long to embrace an examination of Cousin's theory of the will, he attempts in this work, which is a kind of supplement to the review, not only to refute Cousin's doctrine, but to set forth also his own opinions on that point of metaphysical speculation. The other and larger work on the will, published in 1841, is a resume of the work of Edwards, made in a lucid, dispassionate, truth- loving spirit, and not intended to present the views of the author him- self, although he takes no pains to conceal that he is a follower of the great New England metaphysician. 22 PROCEEDINGS OF THE AMERICAN ACADEMY We mention only one article more which came from his pen, — his essay published in the Biblical Repository for January, 1843, entitled " Benevolence and Selfishness," in which he discusses the questions of the ultimate motives of a finite being, and the end of God in the crea- tion of the world. This essay, written partly in explanation and cor- rection of the views of Jonathan Edwards in his work on the " End of the Creation," does great honor, as we think, to his metaphysical capacity. Daniel Lord was born at Stonington, Connecticut, September 23, 1795. In his early infancy his father, Dr. Daniel Lord, removed to the city of New York, where he established himself as physician and druggist. The subject of our notice, being an only child, found his chief associates among his father's friends, men of years and experience, and sometimes of rough adventure, — physicians, merchant-traders, and sea-captains, in whose conversation the observant child found am- ple food for thought and incentives to future action. At school he acquired an excellent education, embracing the classical languages and French, then almost the only modern language which was recognized as an accomplishment. At the age of fifteen he entered Yale College, at that time under the charge of Dr. Dvvight, and was graduated second in his class in 1814. From College he went to the Law School at Litchfield, Connecticut^, whence he returned in 1816 to New York, and continued his legal studies in the office of the late Mr. George Griffin, then, and for many years afterwards, one of the most prominent lawyers of the State. He was called to the bar in 1818, and from that time until within a few weeks of his death, his life was exclusively devoted to his professional duties. Success came slowly. But no discouragement was permitted to check his industrious pursuit of professional learning, and in those early years of patient, though often disheartened, labor he amassed the legal knowledge and secured the intellectual discipline which were the guaranty of his ultimate success. The habits of thorough research and faithful application thus ac- quired, united with his vigorous abilities and his commanding moral traits, obtained at length their appropriate reward, and placed him in the front rank of his profession, at a time when the Bar of New York was made illustrious by men whose names will ever be conspicuous in the history of American jurisprudence. OF ARTS AND SCIENCES : JUNE 9, 1868. 23 The position thus won by well-directed effort was never lost by in- attention or neglect. In his daily contests in the courts he was often defeated, but never unprepared. The singular uprightness of his character, always keeping him from any attempt to mislead either court or jury, gave a weight to his arguments which rendered him at all times an effective advocate and a formidable opponent. No one could accuse him of ever having tried to " make the worse appear the better reason," and he reaped the reward of his sincerity in gaining the entire confidence of those whom he sought to influence by his logic. His life was a purely professional one. Once only he was a candi- date for a seat in the New York Senate, and was defeated. Twice, however, he was invited to a position on the bench, each time by appointment to fill vacancies, — once to that of the Superior Court of the city of New York, and once to the Court of Appeals of the State. On each occasion — from no sordid motives, as all will believe who ever knew him, but from a deep-grounded distrust of the plan of an elective judiciary, then recently adopted in New York, and from a con- sequent unwillingness to be connected with a system which he thor- oughly disapproved of — he declined the appointment. His reputation, therefore, was simply that of a lawyer. It borrowed nothing from the prestige of official rank or authority. It was bravely fought for, and fairly won, in an arena where learning and skill could alone secure the prize, and diligence and fidelity alone retain it. The fact, therefore, that his name was so widely known, not only among his immediate associates, but throughout the land, is conclusive testimony to his great ability. It is not in the nature of things that any private professional repu- tation should long survive in the minds of men, but Mr. Lord's influ- ence will long outlive his reputation. Coming to the bar at a time when American jurisprudence was just beginning to assume its present independent position, he did much towards establishing many of its doctrines, which, though now admitted as forever fixed, were then un- certain and without authority. In some departments he was an acknowledged leader, particularly in commercial and insurance law, and the mercantile community will long be governed in some of its most important interests by principles and methods for which it is in- debted to him. The uprightness and truth which illustrated Mr. Lord's character as a lawyer and a man were the outgrowths of a true Christian faith 24 PROCEEDINGS OF THE AMERICAN ACADEMY adopted in early manhood, and matured and ripened with the reflec- tion of advancing years, — a faith which bore fruit in Christian labors and a Christian example ; which gave a hallowed tone to his influence on all around him, and at the last sustained him calmly as his end ap- proached. " The man who consecrates his hours By vigorous effort, and an honest aim, At once he draws the sting of life and death." Francis Peabody, late President of the Essex Institute, was born in Salem, December 7, 1801, and died at his residence in that city, October 31, 1867. He was son of Joseph Peabody, an eminent merchant of Salem dur- ing the close of the last and the beginning of the present century. Soon after leaving school he travelled in Russia and Northern Europe, and on his return settled in Salem, where he continued to reside until his decease. In early life he exhibited a taste for Chemistry and the kindred sciences and their application to the useful arts, which was nurtured and developed by the literary and scientific activity of the community in which he lived, as well as by its commercial enterprise and the elevated and permanent character of its society. When, in the year 1827, the Essex Lodge of Freemasons, of which he was a member, and the Mechanics Charitable Association, each voted to provide courses of literary and scientific lectures, Mr. Pea- body entered zealously into their plans, and delivered before both of these institutions a number of lectures on the Steam-Engine, Electri- city, Galvanism, Heat, and other scientific subjects. Three years later he took a leading part in the organization of the Salem Lyceum, was one of its first managers, and one of the earliest of its lecturers. For his zeal in promoting the efforts of his townsmen in this new direction he is to be ranked among the prominent founders of that system of popular or lyceum lectures, which has since become so universal in this country, and which has grown to be an influential, if not a permanent, feature of our social economy. His taste for applied science early led him to engage in chemical and other manufactures, in which and commercial pursuits he continued to be interested until his decease. Mr. Peabody was the first President of the Board of Trustees of the fund given by Mr. George Peabody, of London, for the promo- tion of science and useful knowledge in the county of Essex, which OF ARTS AND SCIENCES : JUNE 9, 1868. 25 has recently been incorporated under the title of the " Trustees of the Peabody Academy of Science." He was also one of the original trus- tees of the Cambridge Museum of Archaeology, founded by the same munificent hand, and was a member of several other scientific institu- tions. Mr. Peabody was a man of active and vigorous mind, reaching out for knowledge on every side. With a genius for scientific experi- ments and for mechanical invention he combined a disposition, as well as ample means, to befriend the labors of others in these directions. While distinguished for the variety of his knowledge, he was indefati- gable in reducing it to practical use, and was ever ready to apply his liberal means to advance the welfare of his neighbors by the encour- agement of industry and the discovery of new sources of profit. As his life was characterized by devotion to the studies and pursuits which lead to the enduring prosperity of a country, so his memory will long be cherished for his engaging virtues as well as for his active zeal in all worthy undertakings. Professor Chester Dewey, D. D., LL. D., who was elected into this society fifty years ago, died at Rochester, New York, on the 15th of December last. He was born at Sheffield, Massachusetts, on the 25th of October, 1784, and had therefore entered upon the eighty- fourth year of his age. He was .graduated at Williams College in 1806, was licensed to preach in 1808, but was that same year recalled to his Alma Mater as tut^r, and in 1810 was appointed Professor of Mathematics and Natural Philosophy (including Chemistry), which chair he occupied for seventeen years, to the great advantage of the College. Here, and afterwards as Preceptor of the Gymnasium, a high school for boys which he established at Pittsfield, and carried on for ten years, he did excellent service and acquired abiding fame as an educator. In 1836 he was called to the charge of a similar, but larger, establishment at Rochester, New York, which he conducted with great success until the year 1850, when he became Professor of Chemistry and Natural Philosophy in the newly founded University in that city. He actively performed the duties of this chair for ten years or more, when his age gave a just claim for retirement, although his powers were little impaired, and he gave occasional lectures or other services until he had reached the age of fourscore. His scientific contributions, which began in the first volume of Silliman's Journal in 1818, were continued down to within a year of his death, extending therefore VOL. VIII. 4 26 PROCEEDINGS OF THE AMERICAN ACADEMY through nearly half a century. These related, some of them to Phy- sics and Chemistry, more to Meteorology, to which he paid much at- tention, but most of all to the one department of Botany, with which he has inseparably connected his name. His only separate botanical work was a Report on the Herbaceous Flowering Plants of Massachusetts, made by him as one of the Commissioners on the Zoological and Bo- tanical Survey of the State, recommended by Governor Everett, at the suggestion of the Boston Society of Natural History, as the comple- ment of the Geological Survey by the late Professor Hitchcock. Although much less important than the Avell-known reports of his col- leagues, Harris, Gould, Storer, and Emerson, it shows his predilection for botanical pursuits. But, aware that other duties must mainly fill his working hours, Professor Dewey wisely selected a special depart- ment upon which he could concentrate the endeavoi's his leisure might allow, and turn them to permanent account. He chose the large and difficult genus Carex for special study, and in it became a leading au- thority. His " Cartography " in Silliman's Journal began in the year 1824, and finished with a general index to the numerous articles scattered through forty-three years, in January, 1867. There are very few of our about two hundred North American species with which Dr. Dewey's name is not in some way associated, and of many he was the original describer. Professor Dewey must have been one of the latest survivors of those whose taste for natural history was developed under the lectures of Amos Eaton, when that remarkable man commenced his career as a teacher in Western New England, and in Botany, having devoted him- self perseveringly to a particular department, he became the most distinguished of that school. As teacher, man of science, citizen, and Christian minister, he was a specimen of the typical Western New- Englander, — a peer among those who have not only made that dis- trict what it is, but have also in great measure founded the institu- tions and determined the character of the now lengthened line of States westward from the Hudson to beyond the Mississippi. Highly esteemed and honored throughout an unusually long and useful life, in his serene old age he was very greatly revered. Dr. Samuel Luther Dana died at Lowell, Massachusetts, March 11, 1868, in the seventy-third year of his age, of the effects of a fall on the ice some weeks before. Dr. Dana was a native of Amherst, New Hampshire, fitted for col- OF ARTS AND SCIENCES : JUNE 9, 1868. 27 lege at Phillips Academy, Exeter, and entered Harvard University at the age of fourteen. Immediately after graduation he entered the army, and continued in active service as lieutenant of artillery till the close of the war of 1812. He then studied medicine, and in 1818 re- ceived the degree of M. D. from Harvard University. After practis- ing as a physician, first at Gloucester, Massachusetts, and afterwards at Waltham, he was led by his special fondness for chemistry to give up his practice in order to engage in the manufacture of oil of vitriol and other chemicals. Having continued to superintend the works of the Newton Chemical Company for many years, he was in 1833 induced to accept the position of Chemist of the Merrimack Print Works in Lowell, a position which he held for the rest of his life. With a breadth of view deserving of all praise, the founders of the Merrimack Manufacturing Company saw the importance of bringing science to the aid of art, and, from the outset, considered a regular chemist as indispensable in their print-works. When the first vacancy occurred, they were particularly fortunate in securing the services of Dr. Dana. Having an ardent love for science, rare aptness in tracing out causes, and untiring perseverance in applying principles to prac- tice, he thenceforth devoted himself most industriously to matters con- nected with calico-printing. The first requisite for a good print is the thorough bleaching of the cloth. Dr. Dana made a full study of this subject, and succeeded in diminishing the number of operations which had before been deemed essential. His ideas were made known to the world by a communication sent to the Societe Industrielle de Mul- house, and published, in pai-t, in their Bulletin in 1836. His plan at first met with some opposition, but is now very generally used, and is commonly known as the " American method " of bleaching. One of his earliest investigations related to the action of cow-dung in clearing calico of the thickening used in printing on the mordant ; and he was thus naturally led to inquire into the nature of manures in general, and of the products of decay, then little understood, but after- wards more fully investigated by Maiden and others, and distinguished as gein, humin, and ulmin. The collateral knowledge thus acquired was freely communicated to various friends, and awakened so great an in- terest that he was urgently requested by some of his appreciative fel- low-citizens to deliver a course of lectures on the Chemistry of Agri- culture. The request was complied with in the winter of 1839-40. The publication of these lectures being solicited as likely to prove of 28 PROCEEDINGS OF THE AMERICAN ACADEMY great advantage to the agricultural interests of the Commonwealth, Dr. Dana condensed his notes into a pithy treatise, which was issued in 1842 under the quaint title of " A Muck Manual for Farmers," — a name indicative of the prominent idea of the work. Five editions of this book have been published in this country, and it has been re- printed in England. At the suggestion of Dr. Warren, he also wrote an Essay on Manures, for which a prize was awarded by the Massa- chusetts Society for promoting Agriculture. These labors awakened in his own mind such an interest in the tillage of the soil, that he bought a farm near Lowell for the purpose of testing his particular views, and successfully directed its cultivation for many years. He seems to have found no occasion to modify the propositions which he laid down at first ; though he might have seen fit to add some limita- tions to one or two of them, had he tried the unctuous bottom lands of the Mississippi Valley as well as the light soils of Middlesex County. In point of time, originality, and ability, Dr. Dana stood first among scientific writers on Agriculture in this country, and his works have done great good. But the agricultural treatises by which he has be- come so well and favorably known were but the secondary results of his inquiry into the nature of cow-dung as related to calico-printing. The primary object was pursued with signal success. He found that the property of fixing mordants was owing, in a great measure, to the presence of phosphates, and that the cumbrous and costly animal ex- crement might be effectually replaced by cheap soluble phosphates pre- pared from bones. As the discovery came to be rendered fully availa- ble in the regular routine of work, the fifty cows which had been con- stantly kept by the Merrimac Company were sold off, and a few bar- rels of burnt bones were occasionally brought into the Works under a name understood only by the initiated. Dr. Dana as an employee of the Company was not allowed to secure a patent for the invention, and thus received no personal benefit from it, though it has effected an im- mense saving to others. But another person, with a full knowledge of what had been done at the Merrimac Print Works, went to England and sought to turn the discovery to account there ; and it was then found that Mercer had at the same time been making similar trials. In fact the English and the American chemist independently origi- nated the use of dung substitutes. But probably to Mercer must be conceded the priority of experiments by a few months, while Dana was the first to make the substitution a complete success in actual prac- OF ARTS AND SCIENCES : JUNE 9, 1868. 29 tice. Neither gained full credit for the discovery, because in neither case was the matter made public till Mercer, finding himself not to be in exclusive possession of the idea, joined with others and patented the use of phosphates and arseniates for dunging. In 1840, Dr. Dana, at the request of the city government of Low- ell, made a careful examination of the various well-waters of the city, with reference to their action on lead pipes. And his interest in this important sanitary matter did not end with the presentation of his well- digested report ; but for the sake of making generally known the in- sidious danger then so little understood by physicians themselves, he supervised the translation and publication of Tanquerel on Lead Diseases, with valuable annotations, — the work of translation being done chiefly by his daughters. In 1851 the manufacture of rosin-oil was brought to his notice, and he contributed much to the improvement of that branch of industry. In 1860, Dr. Dana gave his library, containing many rare and val- uable chemical books, to Harvard and Amherst Colleges. From the excellence of what he published, we might have expected a valuable work on general agricultural chemistry, had he been able to ful- fil the partial promise made at the close of his prize Essay on Manures. But in later years his time was occupied by the daily duties of his posi- tion and the management of his farm, his health not always allowing him to labor as actively in scientific matters as his ever-lively interest would prompt. Dr. Dana was so quiet as well as accurate and thorough in his work, and so concise in the expression of his thoughts, that he could be fully appreciated by few. But his earnest devotion to truth, the precision and extent of his knowledge, his high sense of honor, and his conspicuous integrity of character, commanded the full- est respect and confidence of all who knew him. Professor William Sjiyth was born in Pittston, Maine, Feb- ruary 2, 1797, but in his childhood his parents removed to Wiscasset, which was his home till he entered college. The story of his early struggles to obtain a liberal education, of his indomitable perseverance, his self-sacrificing, independent spirit, and the success and reputation of his subsequent life, furnishes most valuable lessons for the young. His preparatory course for college he pursued alone, without regular instruction, at intervals of work as a teacher ; the last two years at Gorhani, Maine, where he was an assistant in the Academy with Rev. Reuben Nason (Harv. 1802), an accomplished classical and mathe- 30 PROCEEDINGS OF THE AMERICAN ACADEMY raatical teacher, whose counsel and aid he always gratefully ac- knowledged. He entered Junior at Bowdoin, September, 1820 ; and, though from late hours of preceding years over Greek and Latin he was compelled to study by another's eyes (his lessons being read to him by his chum), he graduated, 1822, with the first honors of an able class. In 1823 he received appointment as Proctor and Instructor in Greek at his own College, and, soon after, as Tutor in Mathematics and Natural Philosophy. Thus called to a new department of instruction, he detected in him- self and revealed to others the peculiar talent — it may be said, original power — which has given him so much of a name, and reflected so much reputation on his Alma Mater. The predilection of the student had been decidedly for Greek. His success, however, rarely equalled, as a teacher of Algebra, excited quite an enthusiasm in his classes, and thus was designated the eminently fit person to relieve Professor Cleaveland, who had held that department from the opening of the College, and had added Chemistry and Mineralogy to the list of his multifarious duties. In 1825 he became Adjunct Professor of Mathematics and Natural Philosophy, and in 1828 full Professor. With the deep enthusiasm of his nature he at once gave himself to the study of the French systems ; read the Mecanique Celeste, and soon began the work of preparing text-books for his classes. In 1830 he published an Algebra, which was among the first in this country in which the French method was employed. This passed through several editions and then gave place to two separate works, the Elementary and the Larger Algebra. There followed, in rapid succession, Treatises on Plane Trigonometiy and its Applications, on Analytical Geometry, and the Calculus, of this last a second edition appearing in 1859. A man of quick sensibility to questions of right and wrong, of deep religious principle, and of ardent and indefatigable nature, he could not be indifferent to any worthy object of philanthropy or of public in- terest. His enthusiasm was fired by the struggles of the Poles for national life, and then by the Hungarian Revolution. He studied the strategy, was familiar with every phase, political or military, of those movements, and with the qualities of the leaders. As an earnest Christian man, he could not but feel a lively concern in the case of the Cherokees in our country, as a great question involving national justice and honor. He early took decided position in the slavery discussion, and, besides writing in the public press, prepared some of the ablest OF ARTS AND SCIENCES : JUNE 9, 1868. 31 papers which the antislavery cause called forth. The common schools of Maine are more indebted to him than any other man for his agency in favor of the "graded system." He was active, influential, self- denying in behalf of the church and congregation with which he was associated. His decided mechanical skill was freely bestowed in super- intending the erection of the new church edifice near the College and in the principal brick school-house of the village. His last work of this sort was the preparation for the Memorial Hall to commemorate distinguished alumni and friends of the College, especially those who served with honor in the war of the Rebellion. All his energy and skill he threw into this which he was wont to regard as his last work. He was consulting with a contractor on the grounds, when he was seized with the fatal symptoms which, after a little more than two hours of suffering, terminated in death. Since our last annual meeting, Physical Science has lost, by death, the distinguished services of three of its devotees, — Faraday, Brew- sterj and Foucault. Of the last two, one was the veteran associate of the French Academy of Sciences, the other the youngest member of his section, already great, however, in achievement as well as in prom- ise ; and both of them in the fulness of their strength and useful- ness. Michael Faraday was born September 20, 1791 ; the son of a blacksmith in Newington Butts, Surrey, England. He died in the apartments in Hampton Court Palace, which the Queen had assigned to him, on August 25, 18G7 : and with him went out the brightest light which had radiated through the chemical and physical sciences for forty years. In 1804, at the age of thirteen, and with a scanty education, Fara- day was sent to a bookbinder, with whom he served an apprenticeship of eight years. But he was not toiling these many years merely upon the outside of books. He felt through his whole life his indebted- ness to the works of Mrs. Marcet, and he says : " Whenever I pre- sented her with a copy of my memoirs, I took care to add that I sent them to her as a testimony of my gratitude to my first instructress." A copy of the Encyclopedia Britannica, ■ sent to be bound, riveted Faraday's attention ; particularly the article on Electricity. Out of an old bottle he constructed his first electrical machine, and out of a medicine-phial a Leyden Jar, and, thus equipped, he began to experi- ment. It is to be observed, however, that a great many other boys 32 PROCEEDINGS OF THE AMERICAN ACADEMY have done the same thing without growing up to he Faradays. But with them it was play, with him it was work. Faraday himself, in later years, attached considerable importance to the habit which he ac- quired in early life of repeating, as far as he was able, the experiments of which he read in Chemistry and Electricity. And when, after- wards, the brilliant lecturer enchanted both young and old, he treated his audiences as he had treated himself. He did not suppose them to know, or require them to believe, in any physical law, however famil- iar, unless he had shown it to them ; not even that a stone would drop to the earth, without dropping it first before their eyes on to the floor of the lecture-room. In 1812, Faraday was invited to the Royal Institution, to hear Sir Humphry Davy lecture. He took notes at these lectures which he afterwards sent to Davy, asking at the same time his assistance to escape from trade and dedicate himself to science. Davy, who was then at the zenith of his transcendent popularity, had the time and the disposition to encourage the youthful aspirant, and in March, 1813, Faraday became chemical assistant in the laboratory of the Royal Institution. Mr. Gilbert Davies, who had himself detected the genius of Davy in the obscure home of a Cornish carver at Penzance, has said of the illustrious Davy, that the greatest of all his discoveries was the discovery of Faraday. In a few months after Faraday's installation at the Royal Institution, Davy started upon his prolonged visit to the Continent, and Faraday accompanied him as secretary and chemical assistant. His own modest merits were not altogether overshadowed by the shining fame of his companion, and he formed friendships in Paris, Geneva, and Italy which were only broken by death. Faraday began his career of original investigation in 1816, with a successful analysis of a specimen of caustic lime from Tuscany. Since that time, his contributions to science flowed on in a steady stream, so broad and so deep that every province in Chemistry and Physics has felt the reviving influence. In Acoustics, we recall his researches on the sand-figures and lycopodium-heaps of vibrating plates, on musi- cal flames and Trevelyan's experiment with a heated metal ; in Optics, we are reminded of his papers on aerial perspective, on ocular decep- tions produced by rotating wheels, on the relation of gold and other metals to light, on the borosilicate of lead or heavy glass, and of his services on the committee to which he was appointed in 1824, with Herschel and Dolland, by the Royal Society, to suggest improvements OF ARTS AND SCIENCES: JUNE 9, 1868. 33 in the manufacture of glass for telescopes, and his valuable report upon the methods of manufacturing glass ; in general and molecular Physics, we remember his labors and discoveries on the limit to evaporation, on the temperature of vapors, and their solidification, on their passage through capillary tubes, on the pneumatic paradox of Clement Desormes, on vegetation ; in Practical Science, we are indebted to him for suggestions, experiments, inventions, or discoveries on ven- tilation, illumination, fumigation, gunnery, on india-rubber and the al- loys of steel, on the prevention of explosions in collieries, on the ex- tinguishment of blazing houses, on sustaining a prolonged breath in a dangerous atmosphere, and on the false pretensions of spirit-rappings and table-turnings. This meagre enumeration, in which years of intellectual activity are registered in as many lines, indicates the exceeding great versatility of Faraday's genius. Nevertheless, Chemistry and Electricity were his favorite if not his absorbing pursuits, from the beginning to the end of the half-century which his discoveries have made so brilliant. And of these two Chemistry served him, but Electricity commanded hi in. It is impossible in this place to specify, much less to analyze, th.e varied researches of Faraday in chemistry and electricity. In 1820 he described two new compounds of chlorine and carbon. " The discovery of these two compounds," says our Foreign Associate, De la Rive, " filled up an important gap in the history of chemistry." In 1825, Faraday discovered benzole, to which, says Hoffman, " we virtually owe our supply of aniline, with all its magnificent progeny of colors." In 1820, Oersted set up one of those milestones which stand forever in the history of science, by his inauguration of electro-magnetism. Many pressed into the ranks to pursue the new discovery to its consequences, and Faraday among the foremost. He adapted the reaction between the current of electricity in the conductor and the magnet to the pro- duction of a continuous revolution, — a stupendous novelty then, without a parallel in mechanics nearer than the heavenly bodies. Even Am- pere's sweeping generalization of the electro-dynamic action had not anticipated such a result, although it was afterwards able to explain it. In 1831 the scientific interest which had been monopolized by electro-magnetism was transferred to a younger sister, magneto-elec- tricity. Magneto-electricity was a corollary from Faraday's new dis- covery of voltaic induction, when the latter was viewed in the light of VOL. VIII. 5 34 PROCEEDINGS OF THE AMERICAN ACADEMY Ampere's theory of magnetism. Science had been in possession of voltaic electricity for forty years, its most powerful instruments had been wielded by Davy, Hare, and Silliman, statical induction was a familiar fact ; but it was reserved for Faraday first to see with his own eyes the external influence of current electricity. Henry's induced currents of the higher orders ; Page's devices for exalting the inten- sity of induced currents, and their application to therapeutics ; Ruhm- kortf 's coil, and its various adaptations to blasting, lighting, &c, — all these had their origin in Faraday's discovery of voltaic induction. On the 20th of November, 1845, Faraday read to the Royal So- ciety of London his startling discovery of the " Magnetization of Light and the Illumination of Magnetic Lines of Force." This dis- covery, from its delicacy and novelty, deserves to take rank as Fai-a- day's greatest, standing, as Tyndall describes it, among his other dis- coveries and overtopping them all like the " Weisshorn among moun- tains, high, beautiful, and alone." It really means, however, less than the language in which it was announced would convey to most minds. More than thirty years be- fore, Seebeck and Brewster had succeeded in imparting to common glass, by pressure or heat, the depolarizing structure of crystals. It was reserved for Faraday to imitate, partially, the quartz-like structure of oil of turpentine, and its strange power of circular polarization, by subjecting his heavy glass, and even water, to the influence of strong magnets. This discovery was followed by others, in rapid succession, extending over a period of five years ; all of which are included in his comprehensive classification of substances into Magnetics and Diamag- netics. A compass needle made out of a diamagnetic would point east and west, where an ordinary compass needle would point north and south. As oxygen is powerfully magnetic, Faraday labored hard to show that it was superfluous to seek for the cause of terrestrial mag- netism, or at least of its fluctuations, outside of the earth's atmosphere. The antagonistic properties of magnetism and diamagnetism are in- fluenced by crystallization. Faraday proved this for bismuth, anti- mony, and arsenic, as Plucker did for the optical axes of crystals. Faraday could have had little expectation in 1825, when he was melt- ing the borosilicate of lead, that this heavy glass, which proved a fail- ure for optical purposes, on account of its deep color, would, after standing on the shelf for thirty years, become the instrument of his grandest discovery. OF ARTS AND SCIENCES : JUNE 9, 1868. 35 Nor should we forget how much Faraday did to establish the iden- tity of electricity, from whatever source it is derived, to prove the defi- niteuess of its action, to unveil the process of electrolysis, to bring under one general law conduction and insulation, to assert the dependence of electrical and magnetic induction on the molecular agency of inter- vening media, and to deal a vigorous and mortal blow to the contact- theory of galvanism. Faraday was not destined, either by early asso- ciations, education, or mental constitution, to discuss successfully high themes of speculative philosophy or mathematical science, such as the nature and conservation of force, or the essence of matter, though he has written a few papers upon these subjects. Nevertheless, he con- tributed more largely, perhaps, than any of his contemporaries to that vast scientific capital, from which Grove has freely borrowed in the es- tablishment of his theory of the Correlation of the Physical Forces, and the convertibility of one manifestation of force into another, as so many varieties of motion. In 1854, as Faraday was approaching the close of his long period of active service, he delivered a lecture at the Royal Institution, under extraordinary circumstances, on Mental Education. This lecture de- serves special commemoration, inasmuch as Faraday regarded the views expressed in it both as cause and consequence of his own experi- mental life. We here see that faith, humility, patience, labor of thought, mental discipline, well-educated senses, had all conspired to make him a fit high-priest of science. But he says that " this educa. tion has, for its first and its last step, humility." After Faraday returned from his tour with Davy upon the Conti- nent, he pursued the even tenor of his way at the laboratory of the Royal Institution with little interruption ; not allowing himself to be distracted from the chosen work of his life by pleasure or profit or applause. Though by following out his researches to their practical application he might have amassed a large fortune, Faraday rejected the glittering bribe when it was already within his grasp, saying : " I felt I was not sent into the world for this purpose." If Faraday was sent into the world for the discovery of truth, then most certainly he accomplished his destiny. For was he not what Tyndall calls him, " the greatest experimental philosopher the world has ever 'seen " ? Though Faraday would not desert his high vocation for emolument, he often did it at the call of his government, of humanity, of civilization, of science. Nothing could have been more distasteful to him than to 36 PROCEEDINGS OF THE AMERICAN ACADEMY leave, even for one hour, his quiet walk with Nature, which never cheated however she might elude him, and sit with table-movers and other pretended interpreters of her secrets. After describing the ap- paratus, which, with great experimental tact, he had devised for ex- posing the trickery or self-deception of his associates, he writes : " I am a little ashamed of it, for I think, in the present age, and in this part of the world, it ought not to have been required. Nevertheless, I hope it may be useful." And again he says : " I think the system of education that could leave the mental condition of the public body in the state in which this subject has found it must have been greatly deficient in some very important principle." Many scientific men in Great Britain have surpassed Faraday in the clearness, elegance, and eloquence of their writings. But no one, unless it were Davy, possessed to such a degree Faraday's gift of im- parting to others, in the lecture-room, what he had discovered for him- self. If, as De la Rive said of him, he was never caught in a mistake in his laboratory, " the hand marvellously seconding the resolves of the brain," we may add that he seldom disheartened his audience by the miscarriage of an experiment, destroying the spell by which he had hitherto bound them. Though he was less dramatic, we might almost say less theatrical, in his style of address than Davy, he never failed to attract an admiring crowd, not only of the thoughtful and the educated, but of the gay and the high-born. He was equally at home with the juvenile audiences which listened to him during the Christmas holidays. For fifty years, Davy and Faraday together have sustained the glory of the Royal Institution as with the brightness of a whole Academy ; both of them of unchallenged greatness, not only as discoverers of physical truths, but as expositors also. In Davy was found a rare com- bination of poetry and science. Coleridge, it was said, frequented his lectures " to increase his stock of metaphors." Davy preferred the blazing battery of the Royal Institution to the chemist's balance. His generalizations were bold and dazzling. Quality, and not quantity, ex- cited his mind. In ten»years he stood on the pinnacle of fame. He was knighted ; he was courted ; and then his position at the Royal In- stitution was almost honorary. Faraday relied less on his imagination and more on his experiments. Brilliant as were his triumphs, they were won by hard work. His whole scientific life was one protracted campaign, — and that was a war of posts, and not a succession of bril- OF ARTS AND SCIENCES : JUNE 9, 1868. 37 Hunt charges. He prized the recognition of academies and universities, but not the insignia of rank. Without leisure for fashionable society, he enjoyed preaching to the humble sect of Christians to which he be- longed as much as lecturing before princes and nobles, either of birth or of intellect, at the Royal Institution. It is little to say of such a man that he was made a Fellow of the Royal Society of London in 1824, a Corresponding Member of the French Academy of Sciences in 1823, a Foreign Associate of this Academy in 1844; that his name was eagerly sought to adorn the list of honor of all other Academies in Europe and America ; that he re- ceived from the Royal Society of London the Rumford, Copley, and Royal medals ; that his simple life was made independent by a pension of £300, conferred upon him in 1835 ; that Napoleon the exile was in- structed by his lectures, and Napoleon the Emperor acknowledged the obligation by naming him Commander of the Legion of Honor. It is much to say of him that he declined all honors and rewards which were foreign to his scientific character ; that, when he might have amassed a fortune of £ 150,000 by applying old discoveries to commercial uses, he preferred to concentrate his whole mind on the discovery of new truth, dying poor, and leaving a widow dependent on a small pension, which, in noble imitation of his example, she refused to have increased ; that he ruled a strong nature so as to be always gentle, and only impatient of those who unnecessarily wasted his time ; that he was as much exalted above others in modesty as in intellectual greatness ; that he made science honorable and attractive ; that he ruled with an imperial sway the hearts no less than the intellects of his generation, and that his final departure from the laboratory in the Royal Institution of Great Britain on the 20th of June, 1862, was followed by one universal pang of grief throughout the world of science. Long and loudly and perseveringly had Faraday knocked at the secret gates of nature, and most encouraging were the responses which, from time to time, he had received. Nevertheless, he finds it in his heart to say : " I have never seen anything incompatible between those things of man which can be known by the spirit of man which is within him and those higher things concerning his future which he cannot know by that spirit." Faraday, with a wise precaution, which consulted the convenience of others no less than his own reputation, made a timely collection of 38 PROCEEDINGS OF THE AMERICAN ACADEMY his scattered publications, and placed them in a compact and perma- nent form, suited to the private library of the student of science. His " Series of Experimental Researches upon Electricity " amounted to thirty ; all but one of which are now contained in three volumes, pub- lished successively in 1839, 1844, and 1855. These Researches are illustrated by other papers upon the same subject, originally printed in the Philosophical Magazine, or in the Journal and Proceedings of the Royal Institution, as the Researches themselves were in the Philo- sophical Transactions. Faraday's " Experimental Researches in Chem- istry and Physics" fill a fourth volume which appeared in 1859. Also, under his sanction and partly from his notes, have been printed, " Six Lectures on the Non-metallic Elements," in 1852 ; " Six Lectures on the various Forces of Matter," in 1860 ; and " Six Lectures on the History of a Candle," in 1861. The first edition of the " Chemical Manipulation " bears the date of 1827. This was followed by an American edition in 1831, and a second English edition in 1842. Sir David Brewster was born, December 11, 1781, at Jed- burgh, Scotland, also the birthplace of the accomplished commentator upon Laplace's Mecanique Celeste, Mary Somerville. He died at Allerly House, Melrose, in Scotland, February 10, 1868. Although he had reached his eighty-seventh year, we are assured, in the circular announcing his death, that " his faculties were unimpaired to the very last, and he died in the full assurance of faith in Christ Jesus." What revolutions in old sciences, what brilliant careers of new sciences, are condensed into this single lifetime ? Born before Galvan- ism was even a name, he lived to see Voltaic Electricity give birth to the twin sciences of Electro-Magnetism and Magneto-Electricity, throw off its own ephemeral character in the sustaining batteries of Grove and Bunsen, and close a long catalogue of practical triumphs in chem- istry, physics, and mechanics with the oceanic telegraph. Born before Chladni had revived experimental acoustics or published Die Akustik, he lived to see this beautiful branch of Physics expand under the cul- tivation of Savart, Cagniard-de-la-Tour, Wheatstone, Faraday, Lisse- jous, and Helmholtz, until, by affiliations more startling than any which Mrs. Somerville celebrates in her " Connection of the Physical Sciences," the eye threatens to supplant the ear in the investigation of the laws of sound, quality appears to be resolved into quantity, the vowel sounds are mocked by an orchestra of tuning-forks, and OF ARTS AND SCIENCES: JUNE 9, 1868. 39 Brewster's own prediction has the promise of fulfilment, — " I have no doubt that, before another century is completed, a talking and a sing- ing machine will be numbered among the conquests of science." Born at a time when the corpuscular theory of light compelled assent, from the influence of Newton's great name, when Laplace would nbt tolerate any discussion of the opposing theory in the French Academy of Science, when Lord Brougham fiercely attacked what he after- wards cordially espoused, he lived to witness the complete triumph of the undulatory theory in the hands of Young and Fresnel, and to see what Lloyd has called " a mob of hypotheses " exchanged for what Herschel characterizes as " one succession of felicities." Though neither himself nor Biot ever deserted the lost cause, of which they were the bold experimental champions, Brewster, in his Report on Optics, prepared for the British Association for the Advancement of Science, has done ample justice to the labors of Malus and others who contributed to its overthrow ; and he congratulates mankind that " even amid the convulsions and atrocities of that awful period Science shot forth some of her brightest radiations, and, in the moral and religious darkness which prevailed, her evening star was the only surviving emblem of heaven." Of nearly one hundred papers which Brewster published in scien- tific journals or in the transactions of academies, there are very few which do not touch his favorite subject, viz., Optics. Optical instru- ments ; polarization, rectilinear, circular, and elliptical ; depolarization ; the optical character of crystals, and the mode of producing crystalline structure artificially ; vision, both subjective and objective ; the action of the eye in man and other animals ; the interference, dispersion, and absorption of light ; the spectral lines in sunlight, as produced by the sun's atmosphere, or the earth's atmosphere, and as multiplied by other absorbing media; — this was the burden of his long life of research and of his voluminous writings. Born seven years after Biot, Brewster died about seven years later, so that the long and laborious lives of these two eminent physicists went hand in hand for more than half a century. If Brewster did not share the great mathematical powers of Biot, if he was without the genius for vast and rapid generalization displayed by Fresnel in optics and by Ampere in electro-magnetism, nevertheless he was endowed with consummate skill in experiment, and deduced empirical laws where Malus and Arago had failed. We may adopt the language 40 PROCEEDINGS OF THE AMERICAN ACADEMY of Professor J. D. Forbes, and say : " His scientific glory is different in kind from that of Young and Fresnel ; but the discoverer of the law of polarization, of biaxial crystals, of optical mineralogy, and of double refraction by compression, will always occupy a foremost rank in the intellectual history of the age." His theory of only three primary colors, which he proposed as a substitute for the seven primary colors of Newton, though plausible and well sustained by his experiments, has suffered more from neglect than from criticism, Helmholtz alone having seriously undertaken to refute it. Outside of the range of Op- tics, Brewster's most important contribution to science was a paper, pub- lished in 1821, on the mean temperature of the globe and the close co- incidence between the poles of maximum cold and maximum magnetic dip. His first appearance, in 1806, before the commonwealth of science, was with a criticism upon the demonstrations of the lever, as furnished by Galileo, Huyghens, De la Hire, Newton, Maclaurin, Landen, and Hamilton. The solution which he himself gives of this fundamental problem in statics, if not unexceptionable, is certainly ingenious, and indicates a mind well adapted for mechanical research. Brewster's scientific labors sometimes assumed a practical turn. In 1831 he published, in the Transactions of the Royal Society of Edin- burgh, a memoir on the construction of Polyzonal Lenses for Light- houses. As early as 1748, Buffbn had proposed a similar device for burning-glasses. The execution of it was postponed for thirty years, and then proved a failure even in the hands of Rochon. Con- dorcet, in his eulogy upon Buffbn, pronounced in 1788, suggested a modification of his plan, which consisted in building the lens up of sep- arate rings. We next hear of the subject from Brewster in 1811. But the British government were not ready to take the hint from their scientific advisers until after Fresnel had presented to the French Academy of Sciences, in 1822, his memoir on Lighthouses, and his lamp and lens shot forth a blaze of light from the headlands of France. The Kaleidoscope, which Brewster invented in 1817, delighted and instructed all Europe at the time. Fashion may have dethroned it, though once the ornament of the fair sex : but it has not outgrown its popularity in the nursery, and time never can exhaust the fertility of this invention in devising patterns for the manufactory. No less won- derful, no less charming, is the Stereoscope, which, though invented by Wheatstone, has been remodelled by Brewster in a way which has brought it into the homes of millions, to delight, refine, and civilize all ages and all classes. OF ARTS AND SCIENCES : JUNE 9, 1868. 41 The literary labors of Brewster lose their importance, only in com- parison with his scientific discoveries. In 1807, Brewster became editor of the " Edinburgh Encyclopaedia," which he dedicated to his col- lege friend, Lord Brougham. To write what he did for it himself, and marshal into order the other one hundred and fifty contributors to its eighteen volumes, was his principal occupation for twenty years of his life. Between the years 1819 and 1824 he edited, with Professor Jameson, ten volumes of the " Edinburgh Philosophical Journal " ; be- tween the years 1824 and 1829 he edited, single-handed, ten volumes of the " Edinburgh Journal of Science." From 1832 to the time of his death he was one of the editors of the " London and Edinburgh Philo- sophical Magazine and Journal of Science." In 1811 he edited a new edition of Ferguson's Astronomy, and in 1837 he published a Treatise on Magnetism, which he had written for the seventh edition of the Encyclopaedia Britannica. Add to these labors his little work on the Stereoscope, and the two editions of another little work on the Kaleidoscope, his Treatise on New Philosophical Instruments, a Treatise on the Microscope, a volume on Optics which was pub- lished in Lardner's Cyclopaedia, his Letters on Natural Magic, his Martyrs of Science, his Essay on the Plurality of Worlds, his Life of Sir Isaac Newton, published in the Family Library, to say nothing of his numerous contributions to the Edinburgh Quarterly and North British Reviews, and the wonder is that he found any leisure for his scientific pursuits. The reflections cast upon Newton by the astronomer Baily, in his Life of Flamsteed, reanimated the spirit of Brewster, never too ready to succumb to his antagonists. He obtained valuable manuscript ma- terials from Lord Portsmouth, brooded over the subject for more than twenty years, and in 1855 published a greatly enlarged work, in two volumes, under the new title of " Memoirs of the Life, Writings, and Discoveries of Sir Isaac Newton." Of which a critic, none too friendly, in the London Athenaeum, has said : " This work, with all its faults, is a noble monument to Newton's memory and a pillar of fame to the writer." And in the recent struggle to divide with Pascal the honors of the discoverer of universal gravitation, who can doubt which side Brewster took, or be surprised that the venerable survivor of many hard-fought battles entered into the conflict with all the vigor of youth ? The title of one of Brewster's recent publications, " More Worlds VOL. VIII. 6 42 PROCEEDINGS OF THE AMERICAN ACADEMY than One, the Creed of the Philosopher and the Hope of the Chris- tian," is characteristic of his general tone of thought and argument, and reminds us that he was originally destined for the Christian ministry, and had been licensed to preach in the Church of Scotland. At the University of Edinburgh, from which he received the honorary degree of A. M. in 1800, he enjoyed the valuable instruction and friendship of John Robison, John Playfair, and Dugald Stewart. In 1799, at the instance of his intimate friend, afterwards Lord Brougham, he studied Newton's investigations on the Inflection of Light, and re- peated his experiments. But the discovery by Malus, in 1808, of the Polarization of Light fired him with new ardor in the pursuit of phys- ical optics, and determined his future career. In 1815, dui'ing Pro- fessor Playfair's visit to the Continent, Brewster took his place in the University as Lecturer upon Natural Philosophy. A literary and scientific career, so long, so laborious, so useful as that of Brewster, deserved the gratitude of his contemporaries, and he enjoyed it both at home and abroad. He received the degree of LL. D. from the University of Aberdeen, that of D. C. L. from Ox- ford, and that of A. M. from Cambridge. In 1808 he was chosen a member of the Royal Society of Edinburgh ; and was its President from 1864 to the time of his death. In 1815 he was elected a Fellow of the Royal Society of London, and received from it the Copley Medal for his paper on the Polarization of Light by Reflection. In 1818 he won the Rumford Medal by his Discoveries relating to the Polarization of Light. In 1816 a prize was divided by the Institute of France between Brewster and Seebeck for their researches on the depolarizing structure of heated and compressed glass, In 1825, Brewster was made a Corresponding Member of the In- stitute of France, and in 1849 he attained the high distinction of being chosen to succeed Berzelius as one of the eight Associate Members of the Academy of Sciences. He was called to preside at the twentieth meeting of the British Association for the Advancement of Science, held at Edinburgh in 1850. With honor to himself, and advantage to his country, he filled, in succession, the two highest literary positions in Scotland, being first Principal of the old University of St. Andrews, and afterwards, in 1859, Principal of the University of Edinburgh. Since his death, a pension of £ 200 a year has been granted by the government to Lady Brewster, and soon a statue to the memory of her husband will stand in the city of Edinburgh. OF ARTS AND SCIENCES : JUNE 9, 1868. 43 Thus honored and trusted, lived, and labored, and died Sir David Brewster ; a careful experimentalist, an elegant writer, a warm advo- cate of what he believed to be the truth. In him Christian faith was instructed by accurate science, and science was illuminated and in- spired by Christian faith. Sir William Lawrence, an Honorary Member of the Academy, died on the 5th of July, 1867, aged 84. He was born at Cirencister, near Gloucester, England, in 1783, and was educated at the Classical School. In his seventeenth year he went to reside in the family of Mr. Abernethy, to whom he was apprenticed. His official connection with various hospitals began in 1801, when he was appointed Demon- strator of Anatomy at St. Bartholomew's. In 1828, having steadily advanced in reputation and honors, he succeeded Mr. Abernethy as Lecturer on Surgery in that Hospital. In 1814 he was elected Sur- geon to the Eye Infirmary, and in 1815 Surgeon to the Royal Hospi- tals of Bridewell and Bethlem. In 18G5, having been in constant service in these institutions for more than sixty years, he resigned at the age of eighty -two. Mr. Lawrence was Fellow of the Royal Society and Vice-Presi- dent during the Presidency of the Duke of Sussex. He was a mem- ber of the French Institute, and of other learned and scientific associa- tions. In 1831 he was elected President of the " Medico-Chirurgieal Society," and, in 1858, Surgeon to the Queen. It is unnecessary on this occasion to enumerate the long list of his works ; suffice it to say that from the year 1801 he was constantly en- gaged in literary labors either in the form of contributions to various journals or of elaborate treatises. His translation of Blumenbach, with the addition of numerous notes and an introductory view of the classifica- tion of animals on the basis of anatomical structure, was published in 1807, and gave the first impulse, in England, to the study of comparative anatomy. He also contributed the anatomical and physiological ar- ticles in Rees's Cyclopaedia. In 1819 appeared the "Lectures on the Physiology, Zoology, and Natural History of Man." In this depart- ment, in England, there had previously been very little investigation, and this work excited great interest. It displays a vast amount of re- search and knowledge, and is eminent authority at the present day. Of the strictly professional works, the most important are the treatises on Diseases of the Eye, on Hernia, and his most recent work on Surgery. 44 PROCEEDINGS OF THE AMERICAN ACADEMY The Treatise on Diseases of the Eye, comprising his own opinions and those of men distinguished in that department, is a learned and comprehensive exposition of the science of that period. The Treatise on Hernia, probably the most important of his works, was first pub- lished in 1806. It has passed through many editions, which were en- riched by extensive observations in St. Bartholomew's Hospital. The name of Mr. Lawrence will be always identified with the progress of Surgical Science, and the treatise.on this subject will remain a monu- ment to his learning and industry. The late Sir Benjamin Brodie remarks that he " never knew one who had a greater amount of information, not merely on matters relat- ing to his profession, but on a great variety of other subjects." " His personal appearance was striking and impressive ; he had a tall, manly figure, and his head and features were models of intellectual beauty and power." His learning, eloquence, and genial disposition made his fireside most attractive. He often expressed his admiration of our free institu- tions, and many Americans will remember his generous, self-sacrificing hospitality. Pierre Francois Olive Rayer was born, March 7, 1793, of a respectable Bourgeois family, at Saint Sylvain, near Caen, France. After the necessary preliminary education, he commenced the study of medicine, and was graduated Doctor of Medicine, at the age of twenty- three, in Paris. He was a student and favorite pupil of M. Dumeril. Among his contemporaries were Dupuytren, Corvisart, Velpeau, Louis, Larrey, Trousseau and others, who have made the present century such a brilliant epoch in the history of French medicine. He was doubtless stimulated by their example and labors to constant effort in his chosen career, but they owed as much to him as he to them. Through persistent labor and conspicuous merit, he attained succes- sively the highest professional and scientific positions. In 1825 he was appointed to the medical staff of the Hospital of Saint Antoine. In 1832 he was transferred to the Hospital of La Charite. He was selected by Louis Philippe as one of the consulting physicians of the Royal household ; and in 1852 he was taken by the Emperor Napoleon into the medical service of the Imperial family. Rapidly winning the confidence of the community, he soon became known as one of the largest pi'actitioners of medicine in Paris. He was elected into the Academy of Medicine in 1823; and in 1843 he became a member of OF ARTS AND SCIENCES : JUNE 9, 1868. 45 the Academy of Sciences as the successor of M. Morel Vincte. In 1862 he was appointed to fill the newly created chair of Comparative Medicine, and about the same time was chosen Dean of the Medical Faculty of the University of Paris. He was President of the Cen- tral Committee of Public Hygiene, and also of the General Associa- tion of the physicians of France. In 1855 he was elected an Honorary Member of this Academy. Among the various marks of honor which the Emperor conferred upon him was that of Commander, and, when he resigned the place of Dean of the Faculty of Medicine, that of Grand Officer of the Legion of Honor. In connection with Bernard, Robin, Lebert, and one of our own associates, C. E. Brown-Sequard, he was one of the founders of the Society of Biology, — - a society which has probably contributed of late years more than any other to a just and comprehensive study of life in all its manifestations. He was the animating spirit of this Society, and was most properly made its perpetual President. But it is not the honors with which he was crowned, or the respon- sible posts which he filled, or the elevated social position to which he attained, that entitle M. Rayer to our especial regard. His best monument is to be found in his published works. Soon after his graduation he published a brief Summary of Pathological Anatomy. This was followed in a short time by memoirs on a variety of medical subjects, such as a note on the Coryza of Nursing Infants ; a monograph on Delirium Tremens ; a History of the Epidemic of Miliary Sweat, which prevailed in the Departments of Oise, and of the Seine and Oise, in 1821 ; and a number of smaller treatises. In 1835 he put forth a more elaborate work than any of the above memoirs. It was entitled " A Theoretical and Practical Treatise on Diseases of the Skin, founded on Original Anatomical and Pathological Researches." This was in two volumes, and was accompanied with an atlas of colored plates. The value of the work was attested by the appearance, in a short time, of a second edition, which was enlarged to three volumes, with a corresponding addition to the atlas of illustrations. At the time of its appearance, this work was a most important addi- tion to Dermatology, and prepared the way for the minute and careful studies of later observers. The function and diseases of the kidneys early attracted the atten- tion of M. Rayer. The result of his studies in this direction appeared in what was the capital work of his life, and which he called, " A 46 PROCEEDINGS OF THE AMERICAN ACADEMY Treatise on Diseases of the Kidneys, and their Relations to Diseases of the Bladder, the Prostate, and the Urethra." This was completed in three volumes, and was illustrated by a folio atlas of sixty colored plates. As soon as it appeared, it was received as the foremost book of its kind. It was acknowledged as an authority in this country and in England. Two separate translations of it into the German language proved the value which German observers set upon it. Aided by the microscope and the laboratory, later physiologists have gained a more accurate knowledge of the pathology and physiology of the kidneys than can be gathered from M. Rayer's work ; but this does not detract from its value. It was a great addition to medical science. Besides these labors, M. Rayer found time to investigate a depart- ment of pathology that before him was almost unknown, or at least un- explored, namely, that of Comparative Medicine. The chair of that name, which was established by the Medical Faculty of Paris in 1862, was immediately offered to him as the person best qualified to fill it. His monograph on glanders and farcy in the human subject is unique of its kind. The extent of his general knowledge of medicine is shown by the fact of his being one of the authors of the " Dictionary of Practical Medicine," a sort of medical encyclopedia in fifteen volumes. He was, moreover, a frequent contributor to various scientific journals, such as " Les Archives de Medecine Comparee " ; " Les Memoires de l'Academie des Sciences " ; " Le Nouveau Journal de Medecine," etc. It was said of M. Rayer, by one of his contemporaries, that " he was not only distinguished by the works which he produced, but by those which he inspired." The number of eminent men whose early studies he directed and encouraged, and whose fortunes he sometimes aided in most substantial ways, confirms the truth of this remark. Like Stahl and Boerhaave, he loved to surround himself with a group of youthful savans, whom he animated and guided. Claude Bernard, the inge- nious and sagacious observer, who has contributed so largely to the ad- vancement of physiology ; Robin, who has justly been called the creator of French histology ; and Littre, whose translation of Hippocrates and whose knowledge of historical medicine has earned for him so wide a renown, — all were encouraged, substantially aided, and often guided in their earlier and later studies by M. Rayer. As a practitioner, he was one of the most successful of the French physicians. It was said of him that he was first among scientific phy- sicians and also first among medical practitioners. His acquaintance OF ARTS AND SCIENCES : JUNE 9, 1868. 47 with the works and original papers of the physiologists of the present century made him an acknowledged authority on physiological ques- tions. Honest and frank in the expression of his views, when he had occasion to present them, he possessed the rare virtue of being able and willing to recognize and acknowledge an erroneous opinion of his own, whenever the error could be demonstrated. When we consider the extent and variety of his labors, — his private practice, his hospital at- tendance, his collegiate teaching, and his published writings, — we are surprised that one man could have found time to accomplish so much and so well. M. Rayer died in Paris, September 10, 1867, at the age of seventy- four years and six months. The appreciation in which his services to science and medicine were held by his contemporaries was abundantly evinced by the numerous eulogies that were pronounced at the time of his death. Franz Bopp, Professor of Sanskrit and of Comparative Philology in the University at Berlin, died on the 23d of October last, at the advanced age of seventy-six years. Among the philologists of the present century he was perhaps the foremost. Others of his contem- poraries, especially of his countrymen, have shown not less remarkable talent, reached as high a degree of scholarship, and won an equal dis- tinction, in various departments of the study of languages and litera- tures ; but to him belongs the peculiar and transcendent honor of hav- ing inaugurated and given development to a new science, — that of the historical investigation of human speech. It is an honor of which he can be in no measure deprived ; even though it be shown that some of his discoveries had been partially anticipated by others, or, on the other hand, that the times were ripe for the appearance of such a science, which must have sprung up and gained a rapid growth with- out him. For, as a matter of fact, it was he who turned to profitable account the scattered and imperfect perceptions of others, who im- proved and made fruitful their methods of research, who took advan- tage of the favorable conditions of the times, and with steady devotion, clear insight, and admirable skill, laid a foundation and reared a sti'uc- ture which others may indeed improve and extend, but can never destroy. Bopp was born at Mayence, in Bavaria, on the 14th of September, 1791, and received his early education at Aschatfenburg, where the influence especially of Windischmann directed his attention to Orien- tal studies. At the age of twenty-one he went to Paris, drawn thither 48 PROCEEDINGS OP THE AMERICAN ACADEMY by the attraction of the collections of Oriental manuscripts in the great library. Paris was then incontestably the centre of Oriental study for Europe ; even a little school of Sanskrit philology had arisen there, having for its first teacher Alexander Hamilton, an English East-In- dian, one of Napoleon's prisoners after the breach of the peace of Amiens. To the study of the Sanskrit, and to the comparison of Indo-European languages to which it so naturally led, Bopp soon began especially to devote himself, — a devotion which he was never to relax until stricken down by his last illness. More than any other person, he aided to make the Sanskrit accessible to European scholars, by a series of grammars, texts, and glossaries, which, though they have their defects, are even now among the most valuable parts of the apparatus of study within reach of the learner. With him, however, the Sanskrit was the thing of subordinate consequence, the handmaid of comparative philology ; into the history, antiquities, and literature of India he never cared to pene- trate very far, nor did he strive to become a profound Sanskrit scholar, to master all the niceties of its structure and usages. Even before leaving Paris for a further season of study in England, he prepared and published, in 1816, the forerunner of his great Comparative Gram- mar, a little volume entitled " The Conjugation-System of the Sanskrit Language, in comparison with that of the Greek, the Latin, the Per- sian, and the German Languages." In this he sketches the principal features of his whole system, as afterwards developed. He assumes as demonstrated the truth, pointed out by many before him, of the re- lationship of the Sanskrit with the other tongues named, not as their mother, but as their older sister, but in the use he makes of this truth he had no predecessor; he would fain derive from their comparison their history and the genesis of their words and forms. He takes up their grammatical mechanism as an object in itself worthy of study, and sure to lead, when comprehended, to valuable results for other de- partments of knowledge. Both in his distinct apprehension of the work to be done, and in the clearness, good sense, and acuteness of the methods of research he devised and employed, in the geniality and fruitfulness of his whole mode of labor, he so far surpassed all who had gone before him, and furnished an example and model for those who should come after him, as to become the founder of the science. It is, then, not without reason, that the fiftieth anniversary of the date affixed to the preface of the " Conjugation-System " was celebrated just two years ago (May 16, 1868) in Berlin, as the jubilee of Comparative OF ARTS AND SCIENCES : JUNE 9, 1868. 49 Philology, by the establishment of a Bopp fund, of which the income should be forever devoted to the encouragement and aid of researches in this department of knowledge. The endowment, amounting to over ten thousand thalers, was made up by the contributions of scholars and friends of learning in all parts of the world, — those of our own coun- try, among the rest, furnishing their mite to swell the sum. On his return to his native country, Bopp was nominated by the Bavarian government to a professorship in the University of Wiirz- burg; but the handful of pedants who composed the senate of that in- stitution resolved that the studies which he represented had no claim to a place in it, and respectfully declined to ratify the appointment. But the next year (1821) he was called to a vastly higher and wider sphere of labor in the Berlin University, in connection with which and with the Academy of Sciences of the same city his chief literary ac- tivity was henceforth exercised. The most important of his works, by far, is his Comparative Gram- mar, of which the first edition began to appear in 1833 and reached its completion in 1849. A second edition, in three volumes, considerably modified and extended, was commenced in 1857 and finished in 1861. The former was long since translated into English ; of the latter, M. Breal is now putting forth a French version. Into any extended de- scription or criticism of this great work we are not called upon to enter. It is a rich mine of observations and conclusions, the compen- dium of what was done for the new science by its founder. We must not regard it, however, as in all parts of equal merit and authority. Bopp lived long enough to see his science carried further, in many points, by his followers than by himself. At the same time, he was not one who readily assimilated the results won by others. The later years of his life were comparatively unfruitful of valuable additions to science ; and when at length he passed away, it was rather the pres- ence of the man than the work of the scholar that was missed by us. August Boeckh, the illustrious philologist, long a member of the Academy, died in Berlin, August 3, 1867, aged 82. He was born in Karlsruhe, November 24, 1785, and had the misfortune to be left an orphan at the age of three. From his sixth to his eighteenth year he attended the gymnasium at Karlsruhe, where he went through an un- usually thorough course of study for the times, embracing the classics, mathematics and physics, and philosophy. Thus prepared for a more independent course of study, Boeckh left VOL. VIII. 7 50 PROCEEDINGS OF THE AMERICAN ACADEMY Karlsruhe in 1803 for the University of Halle, to which he was drawn by the great reputation of Friedrich August Wolf. His original in- tention was to study theology and philology together. But his interest in the latter study soon led him to discard theology and to devote him- self to philology as his professional study, combining, however, with it philosophy under Schleiermacher, — a combination that gave a turn to his first literary undertaking on the Minos and the Laws of Plato. On leaving Halle in 1806, Boeckh began as a teacher in Berlin. But the fortunes of the war then raging soon forced him to leave Prussia and go to Heidelberg. His rapid academic advancement is an evidence of the precocity of his genius. He was appointed Extraor- dinary Professor at Heidelberg in 1807, Ordinary Professor in 1809, and in 1811, when the University of Berlin was founded, he received a call as Professor of Eloquence and Ancient Literature. From 1811 to 1867 — fifty-six years — he lived in Berlin the un- eventful life of a scholar, dividing his time between study, his duties as Professor and head of the Philological Seminary, and various other charges for which his extraordinary aptitude for affaii's fitted him. He was repeatedly Rector of the University. In the sessions of the Acad- emy he took a lively interest, and his communications to that body have become a standard part of philological literature. Both in his elaborate books and in the more fugitive pieces and courses of lectures which laid the groundwork to these books, Boeckh exhibited two qualities not often united, — a faculty for details and a comprehensive grasp of the general subject. He had a perfect genius for details. No matter what the subject was that interested him, — and in his long and manifold studies there were few things connected with ancient life which did not interest him, — whether it was a question of weights and measures, of finance, of grammar, of metres, of orthog- raphy, or astronomy, — he followed the thing out with a microscopic eye into its minutest ramifications, weighing carefully all the evidences of the text and studying the credibility of his witnesses. In his ear- lier years he kept copious notes and adversaria. Later in life he gave them up, trusting entirely to his memory. Under such a load of eru- dition a less happily balanced mind would have staggered and stumbled. But in combination and arrangement Boeckh was equally at home. With the insight of genius he looked at the tangled and complicated masses, and order sprang out of chaos. Grasping the leading idea, he carried it out consistently to the end, and his intimate familiarity with OF ARTS AND SCIENCES : JUNE 9, 1868. 51 the whole range of ancient thought and action enabled him to shed a flood of light on all the parts. To enumerate the works of Boeckh would take us far beyond the bounds of this brief notice. As Professor of Poetry and Ancient Literature, the representative and spokesman of the University, he was officially bound to deliver orations on public occasions and to write the University programmes. The collection of Orations and Disserta- tions published in three volumes from 1858 to 1866 gives but little idea of his gigantic industry. Of his larger books we need hardly name his Pindar, his Collection of Greek Inscriptions, and his Public Economy of Athens. While Boeckh was known to foreign countries by his works, at home he exerted an influence equally great by his personal teachings. In his younger days he lived in intimate relations with his pupils, quite carry- ing out the old academic idea of Master and Disciples, now among the traditions of the past. As the University grew and his own audiences became larger, this was no longer possible, and his connection with the younger generation was confined to his labors in the Seminary and his Lectures. The Lectures, which were partly exegetical and partly sys- tematic,— among the latter the courses on Antiquities and on the Encyclopaedia of Philology being particularly prized, — were marked by the same minuteness of detail and the same general grasp which characterized his books. His style and delivery were plain and to the point, giving an impression of immense shrewdness and reserve power, and the earnestness of his discourse was every now and then lighted up by a flash of homely drollery. Grown old among his books, he celebrated the sixtieth anniversary of his Doctorate, March 15, 1867, and received such an ovation from scholars, citizens, and crowned heads as is never given to a scholar out of Germany and seldom equalled there. Shortly after, he died. Karl Joseph Anton Mittermaier, borti at Munich, August 5, 1787, died at Heidelberg, August 28, 1867, at the age of eighty, after a life of zealous, honorable, and learned labor in the cause of science and humanity. In 1819 he became a Professor of Law at Bonn, whence, in 1834, he was transferred to Heidelberg. In 1859 he celebrated his professional jubilee. For more than half a century he was well known as a teacher and writer on subjects of great interest in civil and criminal law. His learning was not ab- sorbed in the past, but put to constant service in behalf of the 52 PROCEEDINGS OF THE AMERICAN ACADEMY present and the future. In this best sense he was a reformer. As a public man at times in middle life, he held the position of a moderate liberal, and distinguished himself in furthering reformatory and pro- gressive legislation. He favored oral and public procedure in the civil courts, the separation of judicial from administrative functions, and the abolition of corporal punishment as a means of eliciting the truth ; and he pronounced himself a friend to the freedom of the press. But his public life terminated almost twenty years before his death. As an author, he is widely, though by no means exclusively, known as a criminalist. And he was remarkable for the assiduity and activity with which, by reading, correspondence, and travels, he made himself contemporary with whatever in criminal and penal legisla- tion and procedure was going forward in different countries. In this department of comparative law he was an adept and a leader. The extent of his researches furnished a basis for general conclusions, and his liberal spirit turned them readily into the path of reform. In 1851 he published an important work on criminal procedure in Eng- land, Scotland, and North America. Some months before his death this treatise appeared in a French translation, enriched with the copious fruits of the author's study and personal observation in the interval. In 1865, at the age of seventy-seven, he put out a work (since translated into several languages) in which, surrendering his early opinion on capital punishment, he declared himself in favor of its total abolition. The enlargement of this work by the results of indefatigable inquiries in Europe and the United States was prevented only by his death. These unpublished collections have been deposited in the library of the University of Heidelberg. Since the last annual meeting the Academy has received an acces- sion of eleven new members, as appears in the following list. Of Resident Fellows there have been elected, — Dr. Charles E. Brown-Sequard in Class II., Section 3. Com. John Rodgers, U. S..N., in Class I., Section 4. Edward C. Pickering in Class I., Section 3. James M. Crafts in Class I., Section 3. Of Associate Fellows, — Rowland G. Hazard in Class III., Section 3. Dr. J. Lawrence Smith in Class I., Section 3. Hon. Horace Binney in Class III., Section 1. Hon. Daniel Lord in Class III., Section 1. OF ARTS AND SCIENCES : JULY 7, 1868. 53 Of Foreign Honorary Membei's we have elected, — Major- General Edward Sabine, in place of Admiral Duperrey, in Class II., Section 1. M. Chevreul in Class I., Section 3. One of our members, Dr. C. H. F. Peters, has been transferred from the list of Resident Fellows to that of Associate Fellows in Class I., Section 2. Five hundred and ninety-seventh Meeting. June 23, 1868. — Adjourned Annual Meeting. The President in the chair. The memoirs of the Foreign Honorary Members deceased during the year were read from the Council's Annual Report by the Corresponding Secretary and Professor Lovering. Nominations by the Council were read. The Statute Meeting for August was adjourned to the second Tuesday in September, and a Special Meeting was ap- pointed for the first Tuesday in July. Five hundred and ninety-eighth Meeting. July 7, 1868. — Special Meeting. The President in the chair. The President called the attention of the Academy to a cir- cular letter announcing the celebration at Berlin of the fiftieth anniversary of Ehrenberg's Doctorate. On the motion of Dr. Bowditch the following vote was passed : — " Resolved that this Academy desires to express their sin- cere congratulations to Dr. Ehrenberg for his long and hon- orable services in the cause of science, and requests their President, Dr. Asa Gray, and Professor Joseph Lovering, to represent them on this interesting occasion." Professor Lovering made a communication on the appli- cation of Electricity to maintaining the vibrations of a tuning- 54 PROCEEDINGS OF THE AMERICAN ACADEMY fork, and of the tuning-fork to exciting and sustaining the vibration of threads or cords. The elements which comprise the essential features of the machine, now exhibited, are not original. The application of electricity as the maintaining power for such rapid vibrations as belong to tuning-forks is not new, though it is of recent discovery ; and the application of tuning-forks to exciting sympathetic vibrations in cords is not new, though it is also of recent discovery. I am not aware, however, that these two discoveries have been united into one, by Employing a tun- ing-fork, so impelled, for this particular purpose. Such tuning-fork3 have already been made and used by Koenig for producing the Lisse* jous' curves, and for exhibiting the phenomena of interference of sounds ; and this new application, therefore, is sufficiently obvious, and may have been already anticipated by other physicists. The tuning-forks in ut, etc., manufactured by Koenig for repeating Melde's experiments on the vibrations of cords, are only adapted to short threads of saddler's silk. My object has been to provide a tuning-fork which would not be overloaded with a stout cord of thirty or forty feet in length. The prongs of my tuning-fork are thirty inches in length, two inches in width, and three eighths of an inch in thickness ; and, in spite of the encumbrance of the cord, they will vibrate for many minutes without the aid of electricity, making excursions oPone half of an inch on each side of the position of equilibrium. The outer face of each prong, when at rest, is exposed to one pole of an electro-magnet, at the dis- tance of three fourths of an inch from it. The iron core of this elec- tro-magnet has a circular section of an inch and one fourth in diameter, and is wound with copper wire to the depth of two inches. The extremities of this iron core carry nearly cubical blocks of soft iron, of about one inch and a half in linear dimension, through which are screwed pieces of iron of one half of an inch in thickness. The ends of these pieces are the acting poles, and are screwed through the blocks, in order to adjust the distance between the poles of the magnet and the prongs of the tuning-fork. With four cups of Bunsen's bat- tery, the zincs of which are cylinders, four inches in diameter and seven inches in height, and connected for intensity, the magnet has strength sufficient to initiate the motion of the prongs, at the distance even of three fourths of an inch, and to bring them soon into energetic vibration. The current of electricity runs through the stem of the OF ARTS AND SCIENCES : SEPTEMBER 8, 1868. 65 tuning-fork into the lower prong, near the extremity of which, and upon the interior surface, is a small platinum plate which is touched by the point of a platinum wire. This platinum wire is attached to the end of a short spring. When the current begins to flow, the prongs of the tuning-fork are attracted outwards, the platinum plate is withdrawn from the platinum wire, the flow of the electrical current is interrupted, and the prongs of the tuning-fork are free to spring together again, without the retarding influence of the magnetic poles. The tuning- fork itself, therefore, interrupts the current at each of its vibrations, so as to be subject to an accelerating force of magnetism, when its prongs are moving outwardly, without a corresponding retarding action, when they are moving inwardly. The vibrations of this tuning-fork ai*e so energetic, and the ampli- tude of its excursions is so large, that the ends of the prongs often strike the poles of the electro-magnet. The tuning-fork easily commands the motion of a stout cord, thirty or forty feet in length, which vibrates as a whole, or in segments, whenever the tension is such as to make any one of the harmonics of the cord correspond to the note of the tuning- fork. The middle of the segments sweeps through a breadth of two or three inches, and the eye easily recognizes the nodes, and other peculiarities of vibrating cords, even when the rate of vibration is too slow to produce any acoustic effect. In this way, all the laws of vi- brating strings may be illustrated to the coarsest eye even more satis- factorily than is possible with the most highly educated ear." Five Hundred and ninety-ninth Meeting. September 8, 1868. — Adjourned Statute Meeting. The Recording Secretary in the chair. Professor Lovering made the following communication on the Periodicity of the Aurora Borealis : ■ — As this paper will appear in full in the Memoirs of the Academy, over three hundred pages of which are already printed, only a brief abstract will be given in this place. I was incited to the study of the laws of periodicity of the aurora by the absence of any recorded ap- pearances of this display, in this country, before the early part of the eighteenth century, — a failure in the record which could not easily be 56 PROCEEDINGS OF THE AMERICAN ACADEMY explained except by a failure in the phenomenon itself, especially when it is considered that the early settlers of New England were not likely to have overlooked appearances which they could so readily associate with the religious or political events of their heaven-determined des- tiny. A preliminary discussion of the subject was first published in the American Almanac for 1860, and afterwards, with some modifica- tion, in the Memoirs of the Academy, Vol. IX. p. 101. But I was soon satisfied that no satisfactory solution of a vast problem could be reached, which was built on anything less than the richest materials that could be gathered from the records of science. Much time has been expended, therefore, in preparing and printing a complete cata- logue of all the auroras observed from the earliest times down to the present year, — a catalogue which comprises about ten thousand inde- pendent auroras and fifty thousand observations. The discussion of these materials, so far as it has yet progressed, relates especially to the distribution of auroras between the different days and months of the year, and the accuracy with which this distri- bution may be expressed by a periodical function. The subject is considered, not only for the whole earth, but also separately for the two hemispheres, and for each place where a series of observations has continued long enough to justify a distinct discussion. The num- ber of auroras occurring in different seasons of the year has been computed by the following formula : — N = A + Ci sin. 2 n (t + ca) -f C2 sin. 4 n (t + c,) + C3 sin. 6 n (t + c3) ; and the result compared with the observations. The mean probable error has been obtained by the usual rule, applied to the differences be- tween the number of observed and computed auroras. The formula just mentioned is the same as I employed in 1845 in discussing the daily changes of temperature and magnetic declination at Cambridge, Mass.* In 1843, Eklof published f at Helsingfors, Russia, a mathe- matical investigation of the yearly march of auroral phenomena, in which he employed the same periodic function as I have adopted. Copies, however, of the Scientific Transactions, in which Eklof pub- lished his labors, are very rare in this country. I only know of the single one which I had recently an opportunity to examine, in the Astor Library of New York. As Eklof confined his inquiry to a few * * Memoirs of the American Academy of Arts and Sciences. III. 44. t Acta Soc. Sci. Fennic, etc. II. 302. OF ARTS AND SCIENCES : SEPTEMBER 8, 1868. 57 places, and to small and imperfect catalogues of auroras, what I have added to his work may not, perhaps, be superfluous. I have taken notice, in my memoir, of the attempts made by Mairan, . Ritter, Hoslin, Quetelet, Wartmann, Boue, Baumhauer, Wolf, A. de la Rive, Fritz, and Littrow to establish relations between the periods of auroral maxima and minima, and those of shooting-stars, meteors, earthquakes, disturbances in the earth's magnetism, or the sun's in- flamed surface, and even the larger nutation-period of the earth's axis, to say nothing of hail-storms, snow-storms, lunar halos, winds, etc. Since the first two hundred and forty pages of my Memoir on the Periodicity of the Aurora have been printed, General Lefroy, formerly director of the Magnetic Observatory in Toronto, Canada, has put at my disposal his large accumulation of observations in British America ; also Professor Joseph Henry, Secretary of the Smithsonian Institu- tion, has placed in my hands the unpublished records of meteorology made in various parts of the United States, under the auspices of this institution, in accordance with the comprehensive plan of its accom- plished Secretary. Mr. Charles A. Schott has obtained for me, from the original records in possession of the Smithsonian Institution, the dates of one hundred and eight auroras observed by the late Professor Parker Cleaveland, at Brunswick, Maine. During a recent visit to Leyden, I have been able to consult the manuscript records of Mus- schenbroek. From these I have gathered the observations made in Holland on four hundred and sixty-seven auroras, most of which have never been published before. With these new and rich materials, and others not specified, to which I have had access since my first catalogue was printed, I have been induced to pause in the midst of my discus- sion of the secular periodicity of the aurora, and print supplementary catalogues. I therefore postpone any remarks on this point until the investigation is brought to a conclusion. The sum total of all the inde- pendent auroras contained in all my catalogues amounts to eleven thousand nine hundred and fifty-eight. However, the additional obser- vations contained in the second catalogue, embracing, as they do, but a short period of years, will have less influence upon the question of the secular periodicity of the aurora than upon its yearly march from month to month, at Toronto, Quebec, Newfoundland, etc. ; for which the ob- servations in the first catalogue were limited to a small number of years. VOL. VIII. 8 58 PROCEEDINGS OF THE AMERICAN ACADEMY Number of Auroras observed each Month in the Western Hemisphere. Place. Jan. 9 Feb. Mar. 1 Apr. May. 11 Jun. 5 July. 13 Aug. 13 Sept. 16 Oct. 19 Nov. 5 Dec. 10 Total. 151 Newfoundland, 20 14 16 Quebec, 6 25 14 24 7 10 13 10 19 21 13 7 169 London, Canada, 7 12 12 16 6 5 10 8 10 13 3 5 107 Toronto, 21 37 34 46 35 24 31 25 33 43 34 26 389 Jakobshavn, 27 24 17 1 0 0 0 0 17 28 34 37 185 Gothaab, 61 60 50 21 0 0 0 5 53 45 71 64 430 New York State, 76 89 110 132 89 80 106 125 141 117 75 65 1205 New Haven, 63 59 72 67 62 46 72 66 97 62 86 61 813 Newberry, 23 34 28 30 6 2 3 11 32 30 10 9 218 Providence, 15 17 14 13 18 7 10 7 21 21 14 3 160 Burlington, 8 6 9 8 12 5 6 3 8 3 3 3 74 St. Martin, 6 9 7 9 9 4 14 6 14 3 2 6 89 Wilmington, 6 1 4 1 5 5 6 5 10 3 3 4 53 Worcester, 19 13 27 25 10 9 12 19 30 22 15 11 212 Salem, 9 14 18 17 15 15 30 17 21 22 12 8 198 Boston,' 2 4 1 5 1 2 2 1 6 2 6 4 36 Cambridge, 19 27 37 39 21 10 29 20 45 33 17 19 316 Cambridge, 17 394 31 482 46 514 33 503 24 331 26 255 44 401 40 49 32 519 31 17 390 Aggregates, 381 622 434 359 5195 Number of Auroras observed each Month in the Eastern Hemisphere. Place. Jan. 6 Feb. Mar. Apr. May. Jun. July. Aug. Sept. Oct. 7 Nov. 3 Dec. 1 Total. Prague, 4 4 6 6 1 2 3 4 47 Ratisbon, 1 3 9 9 6 7 2 4 2 8 3 0 54 Holland, 49 47 92 103 110 34 37 59 64 74 47 34 750 Copenhagen, 1 5 9 12 4 0 3 1 4 5 2 2 48 Mannheim, 18 12 33 32 13 8 12 16 28 18 16 10 216 Scandinavia, 40 30 38 11 0 0 0 4 28 49 47 41 288 Sagan, 25 14 34 40 8 2 3 8 22 39 31 14 240 Spydberg, 8 7 17 6 2 0 0 1 10 18 6 6 81 Italy, 4 9 21 5 3 4 6 7 7 12 3 7 88 Wittemberg, 8 12 13 7 3 0 2 11 8 16 5 6 91 Franeker, 20 15 41 23 16 6 8 15 30 30 13 14 231 Montmorenci, 8 13 26 18 14 6 9 11 27 20 11 5 168 Carlsruhe, 2 9 13 15 8 2 5 11 6 8 5 3 87 Paris, 4 5 12 4 20 5 6 10 15 11 12 4 108 Berlin, 21 37 55 48 39 2 10 10 22 45 29 13 331 Upsal, 85 131 152 75 7 2 4 72 126 146 109 109 1018 Brussels, 12 13 18 22 38 23 23 11 16 23 17 15 231 St. Petersburg, 70 100 179 152 42 13 15 62 145 146 83 79 1086 Stockholm, 27 34 50 56 13 0 0 19 44 39 34 25 341 Christiania, 46 61 75 60 3 0 1 35 78 65 55 55 534 Dunse, 33 20 18 18 3 0 2 14 43 34 30 23 238 Makerstoun, 22 26 28 16 6 0 0 7 16 29 23 11 184 Plymouth, Engl., 8 7 23 12 6 1 8 8 10 15 13 9 120 Great Britain, 21 19 23 12 3 2 1 3 35 23 21 22 185 Kendall, etc., 18 18 26 32 21 5 2 21 23 36 38 10 250 Hammerf'est, 19 16 8 0 0 0 0 0 4 9 16 19 91 Abo, etc., 66 87 99 61 9 0 2 28 98 97 74 61 682 Jena, 2 9 4 10 4 2 4 8 14 15 6 752 6 84 Aggregates, 644 763 1120 865 407 125 167 459 929 1037 604 7872 OF ARTS AND SCIENCES : OCTOBER 13, 1868. 59 Mr. Oliver made a communication on certain ray-numbers in Composite. Professor Cooke described a new species of Muscovite Mica containing Lithium and a trace of Rubidium, associated with the Spoduinene of Sterling, Mass. Six hundredth Meeting. October 13, 1868. — Monthly Meeting. The Corresponding Secretary in the chair. The Corresponding Secretary read letters relative to ex- changes ; also letters from Dr. H. L. Mansel and Professor Bluntschli in acknowledgment of their election as Foreign Honorary Members, and a letter from Mr. Samuel H. Scudder in acknowledgment of his election as a Resident Fellow. Professor F. H. Storer presented the following communica- tion : — On the Simultaneous Occurrence of a Soluble Lead Salt and free Sulphuric Acid in Sherry Wine ; ivith Observations on the Solvent Action of Alcoholic Saline Solutions upon Sul- phate of Lead. Several years since, I was called upon by a wine-merchant of this city to examine a sample of pale sherry taken from a cask which had been returned to him, on the certificate of a chemist that the wine con- tained lead. The sample in question was perfectly transparent and clear. There was nothing in the appearance or taste of the wine to in- dicate the sophistication to which it had really been subjected. On submitting this sherry to chemical analysis, I found not only that it held in solution a considerable proportion of lead, but also a decided trace of free sulphuric acid, besides an abundance of the same acid combined with some alkaline base. When a portion of the wine was evaporated in contact with slips of paper, the latter soon became crumbly and friable. Regarded merely from the chemical point of view, without reference to its manifest bearing upon questions of hygiene and jurisprudence, the simultaneous occurrence of a lead salt and of free sulphuric acid in 60 PROCEEDINGS OF THE AMERICAN ACADEMY alcoholic solution is a fact sufficiently important to merit close atten- tion. Unfortunately, the small sample of wine given me was com- pletely exhausted in the severe confirmatory tests by which the results above mentioned were controlled, and I have had no opportunity to determine the precise manner in which the lead was held in solution in that particular case. Several conjectures as to the cause of the# phe- nomenon will be discussed below. That lead compounds should still be employed in the treatment of wine will surprise no one familiar with the tenacity with which tradi- tions are held by successive generations of operatives in many of the chemical arts. According to Taylor,* " litharge was formerly much used to remove the acidity of sour wine and convey a sweet taste. Acetate of lead, or some other vegetable salt of the metal, is in these cases formed ; and the use of such wine may be productive of alarm- ing symptoms. Many years since a fatal epidemic colic prevailed in Paris owing to this cause ; . . . . the adulteration was discovered by Fourcroy, and was immediately suppressed." Beckmann in his History of Inventions f dwells at some length on the antiquity and enduring character of the practice of neutralizing the acid which spoils wine by means of litharge. According to this author, the practice was forbidden by legal enactment in France as early as 1696, but a hundred years later " the art of improving wine by litharge was taught in England as a method perfectly free from danger." t The sulphuric acid in the sample of wine examined by me was prob- ably added, with the view of removing the dissolved lead resulting from the previous use of litharge. It is not unlikely that the addition of the free acid was preceded by that of a solution of sulphate of ammonium. In seeking for an explanation of the fact that a certain proportion of lead may remain dissolved in wine, even in presence of free sul- phuric acid, the following hypotheses suggest themselves : — 1st. It seemed not impossible, in case a mixture of weak alcohol, dilute sulphuric acid, and sulphate of lead was left to itself for a long * On Poisons, p. 502 of the London edition. t Chapter on Adulteration of Wine. J William Graham's Art of Making Wines from Fruit, Flowers, and Herbs. London, sixth edition. OF ARTS AND SCIENCES : OCTOBER 13, 1868. 61 time, that a part of the lead salt might be changed to sulphovinate of lead and pass into solution. This idea was sufficiently improbable in view of the known facts that dilute alcohol and weak sulphuric acid are unfit for making sulphovinic acid, and that but little if any of the acid can be formed, even from tolerably concentrated liquids, unless the mix- ture of alcohol and sulphuric acid be heated artificially. The idea was nevertheless put to the test of experiment, as follows : — 100 c. c. of alcohol of 59 per cent, 5. c. c. of oil of vitriol, and a quantity of recently precipitated sulphate of lead, were placed in a stoppered bottle, and the mixture was frequently shaken during an interval of three months. The clear liquid was then decanted, diluted with water, and saturated with sulphuretted hydrogen gas. Not the slightest coloration indicative of lead was produced. 100 c. c. of similar alcohol, mixed with sulphuric acid, sulphovinic acid, and sulphate of lead, gave no reaction for lead when tested after the lapse of three months. 2d. Though the idea seemed highly improbable, it was still possible that the sugar in the wine might in some way exert a solvent action upon sulphate of lead. It was found, however, when 100 c. c. of alco- hol of 59 per cent, and 5 c. c. of oil of vitriol, together with a quantity of sugar and of precipitated sulphate of lead, were left to themselves for three months, that the clear supernatant liquid held no trace of lead in solution. For that matter, it was found that a mixture of sul- phuric acid and much sugar-water was capable of precipitating all the lead even from an aqueous solution of acetate of lead. The filtrate from the sulphate of lead thus pi'ecipitated gave absolutely no indica- tion of lead when tested with sulphuretted hydrogen, not even when a considerable quantity of the liquid was evaporated to dryness, inciner- ated, treated with nitric acid, and again evaporated before applying the reagent. 3d. The most probable hypothesis of all, however, was, that a cer- tain proportion of lead could be held dissolved in presence of sulphuric acid, even in an alcoholic solution like wine, by the action of various soluble alkaline salts capable of decomposing and of being decomposed by sulphate of lead ; for it is a well-known fact that very considera- ble quantities of sulphate of lead can be held dissolved in water by means of many acetates, citrates, and tartrates, and by various other salts. To test this idea, the following set of experiments has been carried 62 PROCEEDINGS OF THE AMERICAN ACADEMY out at my suggestion by Mr. A. H. Pearson, of Haverhill, a student in the Laboratory of the Massachusetts Institute of Technology. A considerable quantity of dilute alcohol, of the usual strength of sherry wine (18 per cent) having been prepared, standard solutions of acetate of lead, of sulphuric acid, and of sulphate of ammonium were made by dissolving weighed quantities of these substances in portions of the 18% alcohol. Each of the solutions was made of such strength that 500 c. c. of the liquid contained one tenth of an equivalent of the salt or acid, reckoned in grammes, on the hydrogen scale. Alcoholic solutions of several salts of ammonium and of the fixed alkalies were also prepared, as will be described below. In each experiment, equal quantities of the standard solution of sulphuric acid, or of sulphate of ammonium, and of the saline solution to be tested were mixed in a glass flask, and the standard solution of acetate of lead was made to fall from a burette drop by drop into the mixture until a persistent precipitate of sulphate of lead was perceived. The burette was graduated so that two drops from it were equal to one tenth of a cubic centimetre ; and the flask was constantly shaken while the drops of acetate of lead were falling into it. The results of the experiments are as follows : — Acetate of Ammonium was prepared by neutralizing ordinary acetic acid with ammonia-water, and the strong aqueous solution thus obtained was mixed with alcohol. It appeared, however, that this alcoholic solu- tion of the acetate exerted no solvent action upon sulphate of lead, for a permanent precipitate of the latter was produced in the mixture of acetate of ammonium and normal sulphuric acid by the first drop of the standard solution of acetate of lead. The same negative result was obtained in several repetitions of the experiment, even when new portions of dilute alcohol and a second set of the standard solutions were employed. When, however, the solution of acetate of ammonium was mixed with an equal bulk (10 c. c.) of the standard solution of sulphate of ammonium, instead of the sulphuric acid, a considerable quantity of sulphate of lead was held in solution by it. In two distinct trials, the precipitate formed by dropping acetate of lead into the mixed solution of acetate and sulphate of ammonium continued to redissolve until 3 c. c. of the standard solution of acetate of lead had been added to the liquor. These 3 c. c. of the standard solution contained 0.1137 grm. of acetate of lead, corresponding to 0.0909 grm. of sulphate of lead. OF ARTS AND SCIENCES I OCTOBER 13, 1868. 63 To hold dissolved 1 part of sulphate of lead in the dilute alcohol charged with sulphate of ammonium, there was consequently required 110 c. c. of a tolerably strong solution of acetate of ammonium. Still another experiment with sulphuric acid was made by mixing 10 c. c. of an entirely new preparation of acetate of ammonium with a similar quantity of the standard solution of acetate of lead, and drop- ping the standard sulphuric acid into the mixture. No persistent pre- cipitate was produced in this case until 5 c. c. of the acid had been added. This quantity of the standard acid contained 0.049 grm. of sulphuric acid corresponding to 0.1515 grm. of sulphate of lead ; hence only 33 parts of the solution of acetate of ammonium were re- quired to dissolve 1 part of sulphate of lead. It is to be observed that the insolubility of tartrate, citrate, and succinate of lead in alcohol pre- vents the application of this modified form of the experiment in the examples given below.. With the exception of the acetates of am- monium and sodium, none of the salts experimented with can be mixed with the acetate of lead and subsequently tested with sulphuric acid or sulphate of ammonium. Acetate of Sodium, whether mixed with the normal sulphuric acid? with sulphate of ammonium, or with acetate of lead, seemed to have no solvent action upon sulphate of lead. Neither Oxalate of Ammonium nor normal Oxalate of Potassium exerted any solvent action either in presence of the sulphuric acid or the sulphate of ammonium. Tartrate of Ammonium. — Normal, crystallized tartrate of ammonium was dissolved in alcohol of 18%, in such proportion that 500 c. c. of the solution contained -^ of an equivalent, 18.4 grms. of the salt. 25 c. c. of the solution was mixed with an equal volume of the normal sulphuric acid, and normal acetate of lead was added to the mixture until a permanent precipitate was produced. To effect this result, there was required of the standard solutionof acetate of lead 2 c. c. or 0.0758 grm. of the acetate, corresponding to 0.0606 grm. of sulphate of lead. The 25 c. c. of the solution of tartrate of ammonium contained 0.92 grm. of the dry salt. Hence, something more than 15 parts of tartrate of ammonium are required to hold 1 part of sulphate of lead dissolved in dilute alcohol containing free sulphuric acid. In two other experiments where the tartrate of ammonium solution was mixed with the sulphate of ammonium instead of with free sulphuric acid, 3 c. c. of the acetate-of-lead solution had to be added before a permanent precipitate could be formed. 64 PROCEEDINGS OF THE AMERICAN ACADEMY That sulphuric acid is a more efficient precipitant of lead in pres- ence of tartaric acid than sulphate of ammonium was shown in another way. 30 c. c. of the standard alcoholic acetate of lead were mixed with an equal volume of the standard solution of tartrate of ammonium. The precipitated tartrate of lead was filtered, and the filtrate mixed with a' quantity of the sulphate of ammonium solution. No precipi- tate was produced, though on the subsequent addition of sulphuretted hydrogen a slight precipitate of sulphide of lead was formed. In a similar experiment, where sulphuric acid was substituted for sulphate of ammonium, a slight precipitate was produced by the sulphuric acid, and no precipitate could be obtained afterwards with sulphuretted hydrogen. In two other experiments where 5 c. c. of the acetate-of-lead solu- tion were mixed with 30 c. c. of the tartrate of ammonium, no precipi- tate was produced by sulphate of ammonium in the filtrate from the tartrate of lead, while sulphuric acid gave a slight precipitate as before. In this case, however, sulphuretted hydrogen gave a slight precipitate after sulphuric acid, as well as after sulphate of ammonium. Normal Tartrate of Potassium mixed with the solution of sulphuric acid exerted no solvent action on sulphate of lead. Succinate of Ammonium, prepared by neutralizing a solution of suc- cinic acid with ammonia-water, exerted no solvent action when mixed with the free sulphuric acid ; but when mixed with the solution of sul- phate of ammonium, 6 c. c. of the acetate-of-lead solution were added to the liquor before a permanent precipitate fell. Normal Citrate of Ammonium was prepared by neutralizing a weighed equivalent portion of crystallized citric acid with ammonia- water. 10 c. c. of the solution were mixed with an equal volume of the standard sulphuric acid, and the standard solution of acetate of lead was dropped into the mixture in the usual way. No permanent precipitate was formed until 16 c. c. of the lead solution had been added. These 16 c. c. contained 0.6064 grm. of acetate of lead, corresponding to 0.4848 grm. of sulphate of lead. The 10 c. c. of citrate-of-aminonium solution contained 0.42 grm. of crystallized citric acid. Hence, 1 part of sulphate of lead was held dissolved in the mix- ture of alcohol and dilute sulphuric acid for every 0.8663 part of citric acid in the liquor. On repeating the experiment, a precisely similar result was obtained: 16 c. c. of the standard lead solution had to be added to the mixture OF ARTS AND SCIENCES : OCTOBER 13, 1868. 65 of alcohol and sulphuric acid before the precipitate ceased to redissolve as fast as it formed. In two other experiments where, instead of free sulphuric acid, 10 c. c. of the standard solution of sulphate of ammonium were mixed with 10 c. c. of the citrate-of-ammonium solution, 30 c. c. of the standard lead solution had to be added, in each case, before an)' per- manent precipitate formed. Didtrate of Ammonium (C12HG (NH4)2014) was prepared in crys- tals, and 22.6 grms. of the salt were dissolved in 500 c. c. of the 18% alcohol. 25 c. c. of the solution were mixed with an equal volume of the standard sulphuric acid, and the acetate-of-lead solution was dropped into the mixture in the usual way. After the addition of 8 c. c. of the standard acetate of lead, a permanent precipitate was pro- duced. These 8 c. c. contained 0.3032 grm. of acetate of lead, cor- responding to 0.2424 grm. of sulphate of lead. The 25 c. c. of dicitrate-of-ammonium solution contained 1.13 grms. of the dry salt. Hence, 1 part of sulphate of lead was held dissolved for every 4.6617 parts of the dicitrate. Tricitrate of Potassium. — 25 c. c. of a standard solution of ordi- nary crystallized citrate of potassium, mixed with an equal volume of the standard sulphuric acid, gave no permanent precipitate until 2 c. c. of the solution of acetate of lead had been added to it. Sugar. — A standard solution of cane sugar, mixed with an equal volume of the sulphuric acid, gave a permanent precipitate, on the ad- dition of the first drop of the acetate of lead. These experiments show clearly that very considerable quantities of sulphate of lead can be held in solution by weak alcohol charged with various salts. It may, therefore, reasonably be inferred that wines sometimes retain lead in solution, in consequence of this action of the acids and salts peculiar to wine upon lead compounds ignorantly em- ployed to correct acidity. DONATIONS TO THE LIBRARY, FROM JULY 21, 1866, TO JULY 1, 1868. Massachusetts Historical Society. Proceedings. 1866-67. 8vo. Boston. 1867. Massachusetts Institute of Technology. Second and Third Annual Catalogues of the Officers, and the VOL. VIII. 9 66 PROCEEDINGS OF THE AMERICAN ACADEMY Programme of the Course of Instruction, of the School of the Massachusetts Institute of Technology. 1866-67. 1867-68. 2 pamph. 8vo. Boston. 1867 - 68. 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A Report on Amputations at the Hip-Joint in Military Surgery. 4to pamph. Washington. 1867. Department of the Treasury. Reports of a Commission appointed for a Revision of the Revenue System of the United States, 1865, 1866. 8vo. Washington. 1866. 70 PROCEEDINGS OF THE AMERICAN ACADEMY Patent- Office. Annual Report of the Commissioner of Patents for the Year 1866. Vols. L, II., III. 8vo. Washington. 1867. Department of the Interior. Statistics of the United States (including Mortality, Property, etc.) in 1866: compiled from the Original Returns, and being the Final Exhibit of the Eighth Census, under the Direction of the Secretary of the Interior. 4to. Washington. 1866. United States Sanitary Commission. Documents. Vol. I. Nos. 1 - 60. Vol. II. Nos. 61 - 95. 8vo. New York. 1866. Sanitary Commission Bulletin. 3 vols, in 1. 8vo. New York. 1866. Public Library of Cincinnati. Rules, By-Laws, and other Items, with Annual Reports. 1867. 8vo pamph. Cincinnati. 1868. Young Mens Mercantile Library Association of Cincinnati. Thirty-Second and Thirty-Third Annual Report of the Board of Directors for the Years 1866 and 1867. 2 pamph. 8vo. Cincin- nati. 1867, 1868. Chicago Academy of Sciences. Transactions. Vol. I. Part I. 4to. Chicago. 1867. Chicago Historical Society. Department of Public Instruction, City of Chicago. Twelfth and Thirteenth Annual Report of the Board of Education for the Years ending August 31, 1866 and 1867. 8vo. Chicago. 1866, 1867. Eleventh Annual Report of the Board of Guardians of the Chicago Reform School to the Common Council of the City of Chicago, for the Year ending March 31, 1867. 8vo pamph. Chicago. 1867. Eighth and Ninth Annual Statement of the Trade and Commerce of Chicago, for the Year ending March 31, 1'866 and 1867. 8vo. Chicago. 1866, 1867. Fifth Annual Report of the Board of Public Works to the Com- mon Council of the City of Chicago, for the Municipal Fiscal Year ending March 31, 1866. 8vo pamph. Chicago. 1866._ Intramural Interments in Populous Cities, and their Influence upon Health and Epidemics. By John H. Rauch, M. D. 8vo pamph. Chicago. 1866. OF ARTS AND SCIENCES : OCTOBER 13, 1868. 71 Directors of the St. Louis Public Schools. Thirteenth Annual Report of the Board of Directors for the Year ending August 1, 1867. 8vo. St. Louis. 1867. Minnesota Historical Society. Collections for the Year 1867. 8vo . pamph. Saint Paul. 1867. California Academy of Natural Sciences. Proceedings. Vol. III. 8vo. San Francisco. 1868. Memoirs. Parts I., II. 4 to. San Francisco. 1868. Mercantile Library Association of San Francisco. Fourteenth Annual Report of the President, Treasurer, and Librarian. 8vo pamph. San Francisco. 1867. Government of Canada. Geological Survey of Canada. Report of Progress from its Commencement to 1863. Atlas of Maps and Sections, with an Introduction and Appendix. 8vo. Montreal. 1866. Report of Progress from 1863 to 1866. 8vo. Ottawa. 1866. Literary and Historical Society of Quebec. Transactions. Session of 1865 - 66. N. S. Part IV. Session of 1866-67. N. S. Part V. 8vo. Quebec. 1866-67. Extract from a Manuscript Journal relating to the Siege of Que- bec in 1759, kept by Colonel Malcolm Fraser. 8vo pamph. Quebec. Universitas Carolina Lundensis. o Acta Universitatis Lundensis (Lunds Universitets Arsskrift) for Ar 1864, 1865. 2 vols. 4to. Lund. 1864 - 66. Forelasningar och Ofningar vid Carol. Univ. i Lund. Host-Ter- ruinen. 1866. 4to pamph. Lund. 1866. Bureau de la Recherche Geologique de la Suede. Carte Geologique de la Suede. Bladet 19, 20, 21 : Livraisons accompagnies 19 -21. Stockholm. 1866. Societe Royale des Sciences a Upsal. Nova Acta. Ser. 3. Vol. VI. Fasc. 1. 4to. Upsal. 1866. Upsala Universitets Arsskrift 1865. Theologi. 8vo pamph. Upsal. 1865. Kongel. Norske Frederiks Universitet. Christiania. Aarsberetning for 1864, 1865, 1866. 8vo. Christiania. 1865 - 67. Index S"holarum. 1866, 1867. 4to. Christiania. 72 PROCEEDINGS OF THE AMERICAN ACADEMY Ezechiels Syner og Chaldceernes Astrolab, af C. A. Holmboe. Universitets-Program for andet Halvaar, 1866. 4to pamph. Christiania. 1866. Maerker efter en Iistid i Omegnen af Hardangerfjorden, af S. A. Sexe. Universitets-Program for forste Halvaar 1866. 4to pamph. Christiania. 1866. Udsigt over de voesentligste Forbedringer ved Jerntilvirkningen i de seneste Decennier (Akademisk Prisaf handling), af Rick. F. Stalsberg. [Udgivet efter det Akad. Collegiums Foranstaltning.] 8vo. Christiania. 1866. Ungedruckte, unbeachtete und wenig beachtete Quellen zur Ge- schichte der Taufsymbols und der Glaubensregel. Heransgegeben und in Abhandlungen erlautert von Dr. C. P. Casparini. Universi- tets-Program. 8vo. Christiania. 1866. Bidrag tit Bygningskikkens Udvikling paa Landet i Norge. lste Hefte. Huse med kun et Veraesse-Udgivet af et Samfund i For- bindelse med Selskabet for Folkeoplysningens Fremme. 4to pamph. Christiania. 1865. Om de Elliptiske Funktioners Rrekkeudvikling, af Dr. O. J. Broch. 8vo pamph. Stockholm. 1864. Etudes sur Ies Affinites Chimiques par C. M. Guldberg et P. Waage. Programme de l'Universite pour le ler Semesti'e, 1867. 4to pamph. Christiania. 1867. Morkinskinna. Pergamentsbog fra Forste Halvdel af det Tret- tende Aarhundrede, udgiven af C. R. Unger. Universitets-Program, 1866. 8vo pamph. Christiania. 1867. Videnskabs- Selskabet i Christiania. Forhandlinger, Aar. 1864, 1865, 1866. 8vo. Christiania. 1865-67. Physiograph iske Forening. Nyt Magazin for Naturvidenskaberne. Bind XIV. Heft. 2 og 3. 8vo. Christiania. 1866. Kongel. Danske Videnskabernes Selskab, Kjobenhavn. Oversigt. Forhandlinger i Aaret 1865, 1866, 1867. 8vo. Co- penhagen. 1865-67. Skrit'ter, Femte Roekke. Historisk og Philosophisk Afdeling. Bind III. Heft 1. Naturv. og Math. Afd. Bind. VI., VII. 4to. Copenhagen. 1866-68. Siderum Nebulosorum Obsirvationes Haunienses institute in OF ARTS AND SCIENCES : OCTOBER 13, 1868. 73 Specula Universitatis per Tubum Sedecirapeclalem Merzianum ab anno 1861 ad annum 1867. Auctore Dr. H. L. D' Arrest. 4to. Hauniae. 1867. Kongel. Nordiske Oldshrift Selshab, Kjobenhavn. Antiquarisk Tidsskrift, 1858 - 1860. Heft. 1-3. 1861 - 1863. 8vo. Copenhagen. 1861-64. Aarboger for Nordisk Oldkyndighed og Historie, 1866. Heft. 1 -4 : 1867. Heft. 1-3, og TiUseg for 1866. 8vo. Copenhagen. 1866-67. Me moires de la Societe Royale des Antiquaires du Nord. 1850-1860. 8vo. Copenhagen. 1861. Nouv. Serie. 1866. 8vo pamph. Copenhagen. Clavis Poetica Antiquae Linguae Septentrionalis quam e Lexico Poetico Sveinbjornis Egilssonii cpllegit et in Ordinem redegit Benedictus Grondal (Egilsson). Edidit Societas Regia Antiquario- rum Septentrionalium. 8vo. Copenhagen. 1863. Societe Imperiale des JYaturalistes de Moscou. Bulletin. Tomes XXXVIII., XXXIX, XL. Nos. 1, 2. 8vo. Moscow. 1865-67. Academie Imperiale des Sciences de St. Petersbourg. Memoires. 7e Serie. Tomes IX., X., XL Nos. 1-8. 4to. St. Petersburg. 1865-67. Bulletin. Tomes IX., X., XL, XII. No. 1. 4to. St. Peters- burg. 1866-67. Catalogue des Livres publiees en Langues Etrangeres. 8vo. St. Petersburg. 1867. Kaiserliche Gesellschaft fur die Gesammte Mineralogie zu St. Peters- burg. Verhandlungen, Jahrgang, 1863. 8vo. St. Petersburg. 1864. Administration of Mines of Russia. Annales de l'Observatoire Physique Central de Russie. Annee 1863. Nos. 1, 2. 1864. 4to. St. Petersburg. 1865, 1866. Compte-Rendu Annuel Annee 1864. Suppl. aux An- nales de l'Observatoire pour l'Annee 1862. 4to pamph. St. Pe- tersburg. 1865. Bibliotheque Imperiale Publique. St. Petersbourg. Guide de la Bibliotheque Imperiale Publique. 12mo pamph. St. Petersburg. 1860. VOL. VIII. 10 74 PROCEEDINGS OF THE AMERICAN ACADEMY Catalogue des Manuscrits Grecs cle la Bibliotheque .... (avec 9 Planches Lithographiees). 8vo. St. Petersburg. 1864. Catalogue des Nouvelles Acquisitions in Langues Etrangeres de la Bibliotheque Nos. 1-5. 8vo. St. Petersburg. 1864- 66. Specimen du Catalogue Raisonne des Russica de la Bibliotheque. 12mo pamph. St. Petersburg. 1866. Les Elzevir de la Bibliotheque. .... 12mo. St. Petersburg. 1864. Wegweiser der Kaiserlich Oeffentlichen Bibliothek. 12mo pamph. St. Petersburg. 1860. Systematischer Katalog der Russischen Biicher der juristichen Abtheilung der Kais. OefFentl. Bibliothek. 8vo pamph. St. Peters- burg. 1863. Die Jahresberichte der Kais. OefFentl. Bibliothek fur 1862, 1863, 1864, und 1865. 8vo. St. Petersburg. 1863-66. Auszug aus den Jahresberichten der St. Petersburger Kais. Oef- fentl. Bibliothek fur 1859 und 1860. 8vo pamph. St. Peters- burg. 1861. Die Sammlung von Morgenlandischen Handschriften, welche die Kais. OefFentl. Bibliothek zu St. Petersburg im Jahre 1864 von Hra V. Chanykou erworben hat, von B. Dorn. 8vo pamph. St. Petersburg. 1865. Nachtrase zu dem Verzeichniss der in Jahre 1864 erworbenen Chanykou'schen Sammlung von B. Dorn. 8vo pamph. St. Peters- burg. 1865. Kurze Beschreibung der Mathematischen, Astronomischen und Astrologischen Hebraischen Handschriften der Firkowitsch'schen Sammlung in der Kais. OefFentl. Bibliothek .... von Jonas Gur- land. 8vo pamph. St. Petersburg. 1866. Trois Relations de l'Epoque du Faux Demetrius, tirees de la Bib- liotheque Imperiale Publique de St. Petersbourg et du Musee Rou- miantzow. 16mo pamph. St. Petersburg. 1862. Vier Denkschriften aus der Zeit des Falschen Demetrius. 12mo. St. Petersburg. 1863. Kaiserliche Nicolai Haupsternwarte. Pulkova. Tabulae Quantitatum Besellianarum pro annis 1865 ad 1874 computatae. Edidit Otto Struve Speculae Pulcovensis Director (Contin. tabularum anno 1861 editarum). 8vo pamph. Petropoli. 1867. OF ARTS AND SCIENCES I OCTOBER 13, 1868. 75 Jahresbericht am 20 Mai, 1866, dem Comite der Nicolai Haup- sternwarte abgestaltet Von Director der Sternwarte — Aus dem Russ. iibersetzt. 8vo pamph. St. Petersburg. 1866. Academie Roy ale ties Sciences a Amsterdam. Verslasen en Mededeelingen. Afdeeling Letterkunde. Deel IX., X. 8vo. Amsterdam. 1865-66. Afd. Natuurkunde. 2d8 Reeks. Deel I. 8vo. Amsterdam. 1866. Jaarboek voor 1865 - 66. 8vo. Amsterdam. 1866,1867. Processen-Verbaal van de Gewone Vergaderingen der Kon. Akad. van Wetenschappen. Afd. Natuurkund von Jan., 1865, tot. en met Apl., 1866, von 1866-67. 2 pampb. 8vo. Amsterdam. 1866-67. Catalogus von de Boekerij. 2de Deck le Stuk. 8vo. Amsterdam. 1866. Simplicii Commentarius in IV. Libros Aristotelis de Caelo. Ex recensione Sim. Karstenii. Mandato Regiae Academiae Disciplina- rum Nederlandicae Editus. 4to vol. Trajecti ad Rhenum. 1864. Socicte Hollandaise des Sciences a Harlem. Archives Neerlandaises des Sciences Exactes et Naturelles. Tome I. Livr. 1, 2, 3, 4, 5. Tome II. Livr. 1, 2, 3, 4, 5. 8vo. La Haye. 1866, 1867. Natuurkundige Verhandelingen. Deel XXIV. 1, 2, 3 : XXV. 1. 4to. Haarlem. 1866. Netherlands Government. Carte Geologique des Pays Bas de la Neerlande. Oostergoo No. 7. Walcheren No. 21. 2 chts. Haarlem. Flora Batava. Aflevering 190-199. Tytel Register. 12da Deel. 4to. Amsterdam. 1865. KoninMijk Nederlandsch Meteorologisch Instituut. Meteorologiscb Jaarboek. Parts I., II. 1865. Long 4to. Utrecht. 1866. Nederlandsch Meteorologisch Jaarboek. Eerste und Tweede Deel. Long 4to. Utrecht. 1866, 1867. Naturforschende Gesellschaft des Osterlandes zu Altenburg. Mittheilungen aus dem Osterlande. Band XVIII. Heft. 1, 2 8vo. Altenburg. 1867. Konigl. Preussische Akademie der Wissenschaften, Berlin. Abhandlungen aus dem Jahre 1865, 1866. 4to. Berlin. 1866,1867 Monatsberichte aus dem Jahre 1866, 1867. 8vo. Berlin. 1867, 1868. 76 PROCEEDINGS OF THE AMERICAN ACADEMY Naturhistorischer Verein der preussischen Rheinlande und Westphalens. Verhandlungen. Jahrgang XXIL, XXIII., XXIV. 8vo. Bonn. 1865-67. Konigl. Rheinische Friedrich- Wilhelms Universitet. Academical Dissertations, Indexes, etc. 4to and 8vo. Bonn. 1865, 1866. Naturivissenschaftlicher Verein, Bremen. Abhandungen. Band I. Heft. 1, 2. 8vo. Bremen. 1866, 1867. Erster Jahi-esbericht des Naturwissen. Vereines. Fiir das Ge- sellschaftsjahr vom Nov., 1864, bis ende Marz, 1866. 8vo pamph. Bremen. 1866. Naturforschender Verein in Briinn. Verhandlungen. Band IV. 1865. 8vo. Briinn. 1866. Niessl (Prof. G. V.). Untersuchungen iiber die Genauigkeit des Nivellirens und Distanzmessens nach der Stampfer'schen Methode. [Separat-Abdruck aus den Verhand. des Naturfor. Verein in Briinn. 1864 et seq.] 8vo pampb. Briinn. 1864. Naturwissenschaf dicker Verein, Carhruhe. Verhandlungen. Erstes u Zweites Heft. 4to. Carlsruhe. 1864-66. Naturforschende Gesellschaft in Danzig. Schriften, Neue Folge. Band I. Heft. 3, 4. Band II. Heft 1. 8vo. Dantzic. 1866. Verein fiir Erdkunde, Darmstadt. Notizblatt des Vereins fiir Erdkunde und verwandte Wissenschaft- en zu Darmstadt. 3 Folge. Heft. 4, 5. Nos. 37 - 60. 8vo. Darm- stadt. 1865, 1866. Kais. Leopold. Carolinische Akademie der Naturforscher. Nova Acta. Vol. XXXII. Pars II. Vol. XXXIII. 4to. Dresden. 1867. Verein fur Erdkunde zu Dresden. Erster Jahresbericbt (Zweiter Abdruck) : Zweiter Jahresbericht. 2 pamph. 8vo. Dresden. 1865. Naturforschende Gesellschaft in Emden. Einundfunfzigster Jahresbericht. 1865. Zweiundfunfzigster. 1866. 2 pamph. 8vo. Emden. 1866, 1867. Festschrift der naturforschenden Gesellschaft .... herausgege- ben in Veranlassung der Jubelfeier ihres 50 jahrigen Bestehens am 29 Dec, 1864. Von der Direktion. 4to pamph. Emden. OF ARTS AND SCIENCES : OCTOBER 13, 1868. 77 Die Resrenverhaltnisse des Konigreichs Hannover nebst ausfuhr- licher Darstellung aller den atmospharischen Niederschlag und die Verdunstung betreffenden Grossen .... von Dr. M. A. F. Prestel. 4to pamph. Eraden. 18G4. Zoohgische GeseUschaft, Frankfurt am Main. Zoologische Garten. Jahrgang VII., VIII., IX. Nos. 1-6. 8vo. Frankfurt a. M. 1866-68. Aerztlicher Verein. Jahresbericht ueber die Verwaltung des Medicinalwesens die Krankenanstalten und die Oeffentlichen Gesundheitsverhaltnisse der Freien Stadt Frankfurt. Jahrgang VIII. 1864. 8vo. Frank- furt a. M. 1867. GeseUschaft deutscher Naturforscher unci Aerzte. Taeeblatt der 41 Versammlung in Frankfurt am Main vom 18 bis 24 Sept., 1867. 4to pamph. Frankfurt a. M. 1867. Konigl. Scichsische Bergakademie. Die Fortschritte der berg- und huttenmannischen Wissenschaften in den letzten hundert Jahren. Als zweiter Theil der Festschrift zum hundertjahrigen Jubilaum der Konigl. Sachs. Bergakademie zu Freiberg. 8vo. Freiberg. 1867. Festschrift zum hundertjahrigen Jubilaum der Konigl. Sachs. Bergakademie zu Freiberg, am 30 Juli, 1866. Roy. 8vo. Dres- den. 1866. Oberlaxisitzische GeseUschaft der Wissenschaften, Gorlitz. Neues Lausitzisches Magazin. Band. XLIIL, XLIV. Heft 1. 8vo. Gorlitz. 1866, 1867. Konigl. GeseUschaft der Wissenschaften, Gottingen. Abhandlungen. Band. XII., XIII. 4to. Gottingen. 1866-68. Nachrichten von der Georg-Augusts-Universitat und der Konigl. Gesellsch. der Wissenschaften aus dem Jahre 1866-67. 2 vols. 16mo. Gottingen. 1866, 1867. Medicinisch-Naturwissenschaftliche GeseUschaft zu Jena. Jenaische Zeitschrift fur Medicin und Naturwissenschaft. Band II. Heft 2: III. Heft. 2, 3, 4. 8vo. Leipzig. 1865-67. Konigl. Physikalisch- Okonomische GeseUschaft, Konigsberg. Scbriften. 6e Jahrgang. 1865. Abth. 1, 2. 7e Jahrgang. 1866. Heft. 1, 2. 2 vols. 4to. Konigsberg. 1865, 1866. Konigl. Scichsische GeseUschaft der Wissenschaften, Leipzig. Abhandluugen, Philol.-Histor. Classe. Band V. No. 2. Math.- 78 PROCEEDINGS OF THE AMERICAN ACADEMY Phys. Classe. Band VIII. Nos. 2, 3, 4, 5. 8vo. Leipzig. 1866, 1867. Berichte iiber die Verhandlungen. Math.-Phys. Classe. Band. XVII., XVIIL, XIX. Nos. 1, 2. Philol.-Histor. Classe. Band. XVII., XVIII., XIX. No. 1. 8vo. Leipzig. 1865-67. Geselhchaft zur Befordericng der gesammten Naturwissenschaften zu Marburg. Schriften. Supplement-Heft. 4to. Marburg and Leipzig. 1866. Konigl. Bayerische Ahademie der Wissenchaften, Munchen. Abhandlungen, Pbilos. - Philol. Classe. Band X. Abth. 3 : XL Abtb. 1. Histor. Classe. Band IX. Abth. 3 : X. Abth. 1. Math.-Phys. Classe. Band X. Abth. 1. 4to. Munchen. 1866. Sitzungsberichte, 1865. Band II. 1866. Band. I., II. 1867. Band. I., II. Heft. 1, 2. 8vo. Munchen. Annalen der Sternwarte. Ver Supplementband. 8vo. Munchen. 1866. Liebig (Justus Freihem von). Die Entwicklung der Ideen in der Naturwissenschaft. Rede. 4to pamph. Munchen. 1866. Schlagintweit (Emil). Die Gottesurtheile der Indier. Rede. 4to paraph. Munchen. 1866. Bauernfeind (Dr. Carl Maximilian). Die Bedeutung moderner Gradmessungen. Vortrag. 4to pamph. Munchen. 1866. Kobell (Franz von). Die Urzeit der Erde. Ein Gedicht. 16mo pamph. Munchen. 1856. BischofF (Dr. Th. L. Prof, der Anat. u Physiol, in Munchen). Ueber die Verschiedenheit in der Schiidelbildung des Gorilla, Chimpanse, und Orang-Outang, vorziiglich nach Geschlecht und Alter, nebst einer Bemerkung iiber die Darwinsche Theorie. Mit 22 lithog. Tafeln. Vol. 4to and Atlas fol. Munchen. 1867. Ueber die Brauchbarkeit der in verschiedenen Europaischen Staaten veroffentlichen Resultate des Recrutirungs-Geschaftes zur Beuertheilung des Entwicklungs-und Gesundheits-Zustandes ihrer Bevolkerungen. 8vo pamph. Munchen. 1867. Brunn (Dr. Heinrich). Ueber die sogenannte Leukothea in der Glyptothek Sr. Majestat Konig Ludwigs I. Vortrag. 4to pamph. Munchen. 1867. Giesebrecht (Dr. Wilhelm von). Ueber einige altere Darstellun- gen der deutschen Kaiserzeit. Vortrag. 4to pamph. Munchen. 1867. OF ARTS AND SCIENCES: OCTOBER 13, 1868. 79 Naturhistorische Gesellschaft zu Number g. Abhandlungeu. Band III. Halfte 2. 8vo. Nurnberg. 1866. Konigl. Bbhmische Gesellschaft der Wissenschaften in Prag. Abliandlungen. 5 Folge. Band XIV. 4to. Prag. 1866. Sitzungsberichte, Jabrgang. 1865. 1, 2 : 1866. 1, 2. 8vo. Prag. 1865-67. K. K. Sternwarte zu Pray. Magnetiscbe und Meteorologiscbe Beobachtungen. Vols. XXVI., XXVII. 4to. Prag. 1866, 1867. Konigl. Bayerische Botanische Gesellschaft in Regensburg. Flora oder allgemeine botanische Zeitung. Neue Reihe. XXV. Jabrgang. 8vo. Regensburg. 1867. Entomologischer Verein zu Stettin. Entomologische Zeitung. 28 Jabrgang. 8vo. Stettin. 1867. Deutsche Ornithologe- Gesellschaft, Stuttgart. Bericht liber die XIV. Versammlung Deutschen Ornithologen Gesellschaft im " Waldkater," zu Halberstadt und Braunschweig vom 29 Sept. bis 2 Oct., 1862. 8vo. Stuttgart. Kaiserliche Akademie der Wissenschaften, Wien. Denkschriften. Philos.-Histor. Classe. Band. XIV., XV. 4to. Vienna. 1865-67. Math.-Naturw. Classe. Band. XXV., XXVI. 4to. Wien. • 1866, 1867. Register zu den Banden I. -XIV. Denkschriften Phil. Hist. Classe. I. 4to. Vienna.- 1866. Sitzungsberichte. Philos,-Histor. Classe. Band. L. -LVI. Heft. 1, 2. Math.-Naturw. Classe. Band L. - LVI. 8vo. Vienna. 1865-67. Register zu den Banden 41 bis 50 Sitz. der Philos.-Histor. Classe. V. 8vo. 1866. Alraanach. 16 Jahrg. 1866. Fur 1851, 1857, 1867. 16mo. Vienna. Anzeiger. Jahrg. III., IV., V. Nos. 1 - 20. 8vo. Vienna. 1866-68. K. K. Geographische Gessellschaft, Wien. Mittheilungen. Jahrgang VIII. Heft 2, IX. 8vo. Vienna. 1864, 1865. K. K. Gcologische Reichsanstalt, Wien. Jahrbuch, Band. XII. No. 3, XVI., XVII., XVIII. No. 1. 8vo. Vienna. 1862-68. 80 PROCEEDINGS OF THE AMERICAN ACADEMY Die Fossilen Mollusken des Tertiasr Beckens von Wien. Von Dr. Moritz Homes. Band II. Nos. 7, 8. Bivalven. 4to. Vienna. K. K. Zoologisch-Botanische Gesellchaft, Wien. Verhandlungen. Band XV, XVI., XVII. 8vo. Vienna. 1865-67. Neilrich (Dr. August). Nachtrage zur Flora von Nieder Oester- reich .... herausg. von der K. K. Zool. Bot. Gesell. 8vo. Vienna. 1866. Contribuzione pella Fauna dei Molluschi Dalmati per Spiridione Brusina. (Edito per cura dell' Imperiale e B-eale Societa Zool. Bot. di Vienna. Compreso nel XVI. Vol. dejli Atti della Societa per l'anno 1866.) 8vo pamph. Vienna. 1866. Beitrag zu einer Monographic der Sciarinen, von Job. Winnertz in Crefeld. 8vo. Vienna. 1867. Die Diatomeen der Hohen Tatra. Bearbeitet von J. Schumann. 8vo. Vienna. 1867. Diacmosen der in Ungarn und Slavonien bisher beobachteten Gefjisspflanzen welche in Koch's Synopsis nicht enthalten sind. 8vo. Vienna. 1867. Nassauischer Verein fur Naturhunde. Jahrbuch. Heft. 19, 20. 8vo. Wiesbaden. 1864-66. Naturforschende Gesellschaft in Basel. Verhandlungen. Theil. L, II., III., IV. 8vo. Basel. 1857 - 67. Festschrift herausgegeben von der Naturforschenden Gesellschaft .... zur Feier des funfzigjahrigen Bestehens 1867. 8vo pamph. Basel. 1867. Ueber die physikalischen Arbeiten der Societas physica helvetica 1751-1787. Festrede gehalten bei der Feier des funfzigjahrigen Bestehens .... am 4 Mai, 1867. Von Dr. Fritz Burckhardt, d.z. Pras der Gesellschaft. 8vo pamph. Basel. 1867. Naturforschende Gesellschaft in Bern. Mittheilungen. 1865, 1866. 8vo. Bern. 1866, 1867. Societe de Physique et d'Bistoire Naturelle de Geneve. Memoires. Tomes XVIIL, XIX. Pt.I. 4to. Geneva. 1866,1867. Schioeizerische Naturforschende Gesellschaft. Verhandlungen. 49 Versammlung zu Genf. 1865. 50 zu Neu- enburg. 1866. 8vo. Geneva. Neufchatel. Academic Roy ale des Sciences, des Lettres et des Beaux-Arts de Bel- gique. Memoires. Tomes XXXV, XXXVI. 4to. Brussels. 1865-67. OF ARTS AND SCIENCES : OCTOBER 13, 1868. 81 Bulletins. 2e Serie. Tomes XX., XXI., XXII., XXIII. 8vo. Brussels. 1865-67. Memoires Couronnes. Coll. in 8vo. Tome XVIII. 8vo. Brussels. 1866. Annuaire de l'Academie. 1866-67. 18mo. Brussels. 1866,1867. Tables Generales et Analytiques du Recueil des Bulletins. 2e Serie. Tomes I. -XX. 1857-66. 8vo. Brussels. 1867. Instructions pour 1'Observatiou des Phenomenes Periodiques (par A. Quetelet). 8vo pamph. Brussels. 1853. Quatrieme Rapport Decennal sur les Travaux de la Classe des Lettres et des Sciences Morales et Politiques (1851 — 60). Par M. Thonissen, Membre de l'Academie. (Extr. des Bulletins. 2e Ser. Tome XIX. No. 5.) 8vo pamph. Brussels. 1865. Cinquantieme Anniversaire de la Reconstitution de l'Academie (1816-66). (Extr. des Bull. 2e Ser. Tome XXI. No. 5.) 8vo pamph. Brussels. 1866. Statistique et Astronomic Par M. Ad. Quetelet. (Extr. des Bull, de l'Acad. Roy. de Belgique. 2e Ser. Tome XVII. No. 1.) 8vo pamph. Brussels. ■ Communications. Observation de l'Eclipse de Lune. Etoiles Filantes. Sur les Orages observes en Belgique. Par M. Ad. Quetelet. (Extr. des Bull, de l'Acad. Roy. de Belgique. 2e Ser. Tome XX. Nos. 9 et 10.) 8vo pamph. Brussels. Sur les Epoques comparees de la Feuillaison et de la Floraisson a Bruxelles, a Stettin et a Vienne. Par M. M. A. Quetelet, Linster de Pulkowa et Ch. Fritsch de Vienne. (Extr. des Bull, de l'Acad. Roy. de Belgique. Tome XIX. No. 4.) 8vo pamph. Brussels. Observatoire Royal de Bruxelles. Annales. Tome XVII. 4 to." Brussels. 1866. Annuaire. 1867 (34 Annee). 18mo. Brussels. 1866. Observations des Phenomenes Periodiques pendant l'Annee 1864. 4to pamph. Brussels. Meteorologie de la Belgique comparee a celle du Globe. Par Ad. Quetelet, Direct, de l'Obs. Roy. de Bruxelles. 8vo pamph. Brussels et Paris. 1867. Academie d'Archeologie de Belgique. Tome XXI. 2e Serie. Tome I. 8vo. Antwerp. 1865. Societe Imperiale d' Agricidture, Sciences et Arts d Angers. Memoires. Tome IX. Pt. I. No. 2. Nouv. Periode. Tome X., VOL. VIII. 11 82 PROCEEDINGS OF THE AMERICAN ACADEMY 2e Trimestre : Tome II., 3e et 4e Trimestres. 8vo. Angers. 1866, 18G7. Academie Imperiale des Sciences, Arts et Belles-Lettres de Caen. Memoires. 1866,1867,1868. 8vo. Caen. 1866-68. Societe de Linneene de Normandie. Bulletin. Vol. IX. 1863, 1864: Vol. X. 1864, 1865. 8vo. Caen. 1865-66. Societe Imperiale des Sciences Naturelles de Cherbourg. Memoires. Tomes XL, XII. 8vo. Paris et Cherbourg. 1865, 1866. Academie Imperiale des Sciences, Arts et Belles-lettres de Dijon. Memoires. 2e Serie. Tomes XII., XIII. Annee 1864, 1865, 8vo. Dijon et Paris. 1865,1866. Academie Imperiale des Sciences, Belles-Lettres et Arts de Lyon. Memoires. Classe des Sciences, Tome XIII., XIV., XVI. 8vo. Lyons. 1863—67. Societe Imperiale d'Agriadture, etc., de Lyon, Annales des Sciences Physiques et Naturelles, dAgriculture, et dTndustrie. 3e Ser. Tomes IX., X. 8vo. Lyons et Paris. 1865, 1866. Academie des Sciences et Lettres de Montpellier. Memoires de la Section de Medecine. Tome IV- Fasc. 1, 2. Annee 1863 - 64 : de la Section des Sciences. Tome VI. Fasc. 1. Annee 1864. 4to. Montpellier. 1863, 1864. Societe Industrielle de Mulhouse. Bulletin. Tome XXXVIII. Nos. 1-5. 8vo. Mulhouse. 1868. Institut Imperiale de France. Academie des Sciences. Comptes Rendus. Tomes LXII. - LXVI. No. 23. 4to. Paris. 1866-68. Societe de Geographic Bulletin. Ser. 5. Tomes X.- XV. 8vo. Paris. 1865-68. Societe Geologique de France. Histoire des Progres de la Geologie de 1834 a 1859, par A. D. Archiac, publiee par la Societe" Geologique de France, sous les Auspices de M. le Ministre de l'lnstruction Publique. Tomes II. - VIII. 8vo. Paris. 1848 - 60. Bulletin de la Socigte Geologique. 2e Ser. Tomes XVII. - XXIV., XXVIII. No. 1. 8vo. Paris. 1860-68. OF ARTS AND SCIENCES: OCTOBER 13, 1868. 83 Societe de Protection des Apprentis- et des Enfants des Manufactures. Bulletin. Nos. 1, 2, 3. 8vo. Paris. 1867. Societe Imperiale Zoologique d' Acclimatation. Bulletin. Tome III. No. 4 : V. No. 5. 8vo. Paris. 1866-68. Academie des Sciences, Belles-Lettres et Arts de Rouen. Precis Analytiques des Travaux de 1' Academie Imperiale des Sciences, etc., pendant l'Annee 1864-65. 8vo. Rouen. 1865. Societe des Sciences JVaturelles de Strasbourg. Memoires. Tome VI. ler Livr. 4to. Strasbourg. 1866. Accademia delle Scienze delV Instituto di Bologna. Memoire. Ser. 2. Tomo IV., V., VI. 4to. Bologna. 1866, 1867. Rendiconto delle Sessioni dell' Accademia Anno Accademico 1864-65: 1865-66:1866-67. 8vo. Bologna. 1866,1867. Accademia Gioenia di Scienze Naturali. Relazione dei Lavori Scientific! trattati nell anno XXXX. dell Accademia .... letta nell' Arlunaza Gen di Giugno 1866 dal Carimelo Scinto Patti, Ingegnere, Arcbitetto, etc. (Extr. dagli Atti dell' Accad. Vol. I. Ser. 3.) 4to. Catania. 1867. Societa Reale di Napoli. Atti dell' Accademia delle Scienze Fisiche e Matematiche. Vol.11. 4to. Naples. 1865. Rendiconto .... Anno III. Anno IV. Fasc. 1 - 12 : V. Fasc. 1 - 12 : VI. Fasc. 1 - 5. 4to. Naples. 1864 - 67. R. Istituto Tecnico di Palermo. Giornale di Scienze Naturali ed Economiche. Vols. I., II., III. Fasc. 1, 2, 3. 4to. Palermo. 1866, 1867. Reale Accademia delle Scienze di Torino. Memoire. Serie Seconda. Tomo XXI., XXII., XXIII. 4to. Turin. 1864-66. Atti dell R. Accademia. Vols. I., II. 8vo. Turin. 1866,1867. Real Academia de Oiencias de Madrid. Libros del Saber de Astronomia del Rey D'Alfonso X. de Castilla. Tomo IV. Folio. Madrid. 1866. Real Observatorio de Madrid. Anuario. Ano VIII. 1868. 8vo. Madrid. 1867. Observaciones Meteorologicas efectuadas en el Real Observatorio de Madrid desde 1° di Diciembre de 1865 al 30 de Noviembre de 1866. 8vo. Madrid. 1867. 84 PROCEEDINGS OF THE AMERICAN ACADEMY Resumen de las Observaciones Meteorologicas en la Peninsula desde 1° Diciernbre de 1865 al 30 de Noviembre de 1866. 8vo. Madrid. 1867. Informe del Director de Real Observatorio Astronomico y Mete- orologico de Madrid al Excnio. Sr. Comisario Regio del misrao Establecimiento. 8vo paraph. Madrid. 1867. Observatorio de Marina de San Fernando. Almanaque Nautico para el ano 1868, 1869, calculado de Orden de S. M. en el Observatorio de Marina de la Cindad de S. Fernando. 2 vols. 8vo. Cadiz. 1866, 1867. British Association for the Advancement of Science. Report of the Thirty-Fifth Meeting held at Birmingham, Septem- ber, 1865: Thirty-Sixth held at Nottingham, August, 1866. 2 vols. 8vo. London. 1866, 1867. Royal Dublin Society. Journal. Vols. IV., V. Nos. 35 - 66. 8vo. Dublin. 1865,1866. Dublin Quarterly Journal of Science. Vol. VI. 8vo. London and Edinburgh. 1866. Royal Irish Academy. Transactions. Vol. XXIV. Antiquities. Parts V., VI., VII. Sciences. Parts V., VII., VIII. Polite Literature. Part III. 4to. Dublin. 1866, 1867. Proceedings. Vol. IX. Part IV. 8vo. Dublin. 1867. Royal Geological Society of Ireland. Journal. Vol.1. 1864-67. 8vo. Dublin. 1867. Royal Society of Edinburgh. Transactions. Vol. XXIV. Part II. For the Session 1865-66. 4to. Edinburgh. " Proceedings. Vol. V. No. 68. Session 1865 - 66. 8vo. Edinburgh. Chemical Society of London. Journal. Ser. 2. Vols. IV., V, VI. Nos. 1, 2, 3. 8vo. Lon- don. 1866-68. Geological Society of London. Quarterly Journal. Vols. XXII., XXIII., XXVI. Part I. 8vo. London. 1866-68. List of the Geological Society. November 1, 1866, 1867. 8vo. London. Linnean Society of London. Transactions. Vol. XXV. 4to. London. 1866. OF ARTS AND SCIENCES : OCTOBER 13, 1868. 85 General Index. Vols. I.-XXV, 4to. London. 1867. Journal. Botany. Vol. IX. Nos. 35 - 39. Zoology. Vol. VIII. Nos. 31, 32. Vol. IX. Nos. 33-35. 8vo. London. 1865, 1866. List of the Society. 1866. 8vo pamph. Ray Society. A Monograph on the Structure and Development of the Shoul- der-Girdle and Sternum in the Vertebrata. By W. Kitchen Parker, F. R. S., F. Z. S. 4to. London. 1868. Royal Astronomical Society. Memoirs. Vols. XXXV, XXXVI. 4to. London. 1867. Royal Geographical Society of London. Journal. Vols. XIX. -XXII., XXV. -XXXVI. 8vo. Lon- don. 1849-66. General Index to First and Second Ten Vols. 8vo. 1844-53. Proceedings. Vol. XI. Session 1866. Nos. 1-6. 8vo. London. 1867. Catalogue of the Library. May, 1865. 8vo. London. 1865. Royal Horticultural Society of London. Proceedings, N. S. Vol. I. Nos. 4 - 10. 8vo. London. 1866-68. Journal, N. S. Vol. I." Parts III., IV : Vol. II. Part V 8vo. London. 1866-68. Royal Institution of Great Britain. Proceedings. Vols. IV., V. Parts I., II. 8vo. London. 1867. Royal Society of London. Philosophical Transactions. Vols. CLV. - CLVII. 4to. Lon- don. 1865-67. Proceedings. Vols. XIV, XV, XVI. Nos. 94-100. 8vo. London. 1865-68. List of Fellows. 1865, 1866, 1867. 4to. Researches on Solar Physics. By Warren De La Rue, Balfour Stewart, and Benjamin Loewy. First Series, on the Nature of Sun- Spots. 4to pamph. London. 1865. Stonyhurst College Observatory. Results of Meteorological and Magnetical Observations. 1865. Pamph. Clitheroe. Astronomical and Magnetical and Meteorological Observations made at the Royal Observatory, Greenwich, in the Years 1864 and 1865. 4to. London. 1866, 1867. 86 PROCEEDINGS OF THE AMERICAN ACADEMY Catalogue of Scientific Papers (1800 - 63) compiled and pub- lished by the Royal Society of London. Vol. I. (A - Clu.) 4to. London. 1867. Society of Arts, Manufactures, and Commerce. Journal of the Society of Arts and of the Institutions in Union. Vols. XIV., XV. 4to. London. 1866, 1867. Statistical Society of London. Journal. Vols. XXIX., XXX. Parts L- III. 8vo. London. 1866, 1867. Zoological Society of London. Transactions. Vols. V., VI. Parts I. - IV. 4to. London. 1866, 1867. Proceedings for the Years 1865, 1866, 1867. Parts I., II. 8vo. London. 1866, 1867. Report of the Council of the Zoological Society .... read at the Annual General Meeting, April 30, 1866. 8vo pamph. Lon- don. 1866. Lnstitution of Civil Engineers, London. Transactions. Vols. I., II., III. 4to. London. 1838-42. Proceedings. Vols. I. - XXVI. 8vo. London. 1848 - 67. General Index. Vols. I. - XX. 8vo. London. 1865. Catalogue of the Library, 2d edition, corrected to December 31, 1865, with an Appendix. 8vo. London. 1866. Charter, By-Laws, and List of Members. 8vo. London. 1867. British Government. Verification and Extension of LaCaille's Arc of Meridian at the Cape of Good Hope. By Sir Thomas Maclear, Astron. Roy. at the Cape of Good Hope 2 vols. 4to. London. 1866. Comparisons of the Standards of Length of England, France, Belgium, Prussia, Russia, India, Australia, made at the Ordnance Survey Office, Southampton, by Captain A. R. Clarke, R. E., F. R. S., etc., under the direction of Colonel Sir Henry James, R. E., F. R. S., etc. Published by order of the Secretary of State for War. 4to. London. 1866. Literary and Philosophical Society, Manchester. Memoirs. Ser. 3. Vol. II. 8vo. London. 1865. Proceedings. Vols. III., IV. 8vo. Manchester. 1864,1865. OF ARTS AND SCIENCES : OCTOBER 13, 1868. 87 Government of India. Memoirs of the Geological Survey of India. Vol. IV. Part III. : V. Part. I. 8vo. Calcutta. 1865. Palaeontologia Indica. Ser. 3. Parts VI. - IX. Ser. 4. Part I. 4to. Calcutta. 1865. Geological Survey of India. Annual Report, 1864-65. 8vo pamph. Calcutta. 1865. Catalogue of the Organic Remains belonging to the Echinoder- mata. 8vo pamph. Calcutta. 1865. Government of Bengal. Report on the Calcutta Cyclone of the 5th October, 1864, by Lieutenant-Colonel J. E. Gastrell, and Henry F. Blanford, A. R. S. M. . . . . Printed and published for the Government of Bengal. 8vo. Calcutta. 1866, Royal Society of Tasmania. Monthly Notices of Papers and Proceedings. 1863, 1864, 1865. 3 pamph. 8vo. Hobart Town. Report for the Years 1862, 1863, 1864, 1865. 4 pamph. 8vo. Hobart Town and Tasmania. Catalogue of Plants in the Royal Society's Gardens, Queen's Park, Hobart Town, Tasmania. 8vo pamph. Tasmania. 1857. Catalogue of Plants under Cultivation in the Royal Society's Gardens. 8vo pamph. Tasmania. 1865. Results of Meteorological Observations for Twenty Years, for Hobart Town ; made at the Royal Observatory, Ross Bank, from January, 1841, to December, 1854; and at the Private Observatory, from January, 1855, to December, 1860, inclusive. 4to pamph. Tasmania. 1861. Results of Twenty-Five Years' Meteorological Observations for Hobart Town : together with a Two Years' Register of the Prin- cipal Atmospheric Meteors and Aurora Australis. By Francis Ab- bott, F. A. R. S., etc. To which is added a Meteorological Summary for Adelaide, Melbourne, Sydney, Auckland, etc., etc., as compiled from their respective Records. 4to pamph. Tasmania. 1866. Results of Meteorological Observations made in Tasmania, from 1st January to 30th June, 1865. For the Papers and Proceedings of the Royal Society 8vo pamph. Hobart Town. Results .... from 1st July to 31st December, 1865. 8vo pamph. Hobart Town. 88 PROCEEDINGS OF THE AMERICAN ACADEMY Abbot {Henry L., Brevet Brigadier- General, U. S. A., Major Corps of Engineers). Siege Artillery in the Campaigns against Richmond, with Notes on the 15-inch Gun, including an Algebraical Analysis of the Trajec- tory of a Shot in its Ricochets upon smooth Water Prof. Papers of Corps of Engineers. No. 14. 8vo. Washington. 1867. Notes on the Practical Gauging of Rivers. Read before the Es- sayons' Club of the Corps of Engineers, April 13, 1868. No. 2. Printed papers. Pamph. Printed on the Battalion Press. Abbot {Samuel L., M. B., etc.). International Sanitary Conference Report to the Interna- tional Sanitary Conference, of a Commission from that Body on the Origin, Endemicity, Transmissibility, and Propagation of Asiatic Cholera. Translated by Samuel L. Abbot, M. D., etc. 8vo. Boston. 1867. Adler {G.J., A. 31.) . Wilhelm von Humboldt's Linguistical Studies. 8vo pamph. New York. 1866. The Poetry of the Arabs of Spain. 12mo pamph. New York. 1867. Appleton {Prof. John H.). Examination, by Chemical Analysis and otherwise, of Substances emptied into the Public Waters of the State, from Gas and other Manufactories, Sewerage, and other Sources, to ascertain if any In- jury results therefrom to any of the Fisheries in said Public Waters in the Vicinity of the City of Providence. 1860. 8vo pamph. Providence. 1861. Baer{K. E. von). Berichte uber Anmeldung eines mit der Haut gefundenen Mam- muths und die Zurbergung desselben Ausgerustelte Expedition. 8vo. St. Petersburg. 1866. Bailey { W. W.). ■ Reports of Charles C. Gregory, Esq., C. E., City Surveyor, and Loring W. Bailey, Esq., A. M., Professor of Chemistry, etc. University of New Brunswick, on Water Supply to the City of Frederickton. 12mo pamph. Frederickton, N. B. 1867. Barnard {Rev. C. F.). Good News : A Monthly Magazine of Social Science, Christian Charity Yol. I, Nos. 1, 2. 12mo. Boston. 1866-67. OF ARTS AND SCIENCES : OCTOBER 13, 1868. 89 Report of the Superintendent of the Chambers Street Chapel. 12mo pamph. Boston. 1866. Bemis {George). American Neutrality : Its Honorable Past, its Expedient Future. A Protest against the proposed Repeal of the Neutrality Laws, and a Plea for their Improvement and Consolidation. 8vo. Boston. 1866. Bigelow {Jacob, M. D.). Remarks on Classical and Utilitarian Studies, read before the American Academy of Arts and Sciences, December 20, 1866. 8vo pamph. Boston. 1867. Modern Inquiries : Classical, Professional, and Miscellaneous. 8vo. Boston. 1867. Boutivell {Hon. George S.). Argument of George S. Boutwell, one of the Managers on the part of the House of Representatives, before the Senate of the United States, sitting for the Trial of Andrew Johnson, President of the United States, impeached of High Crimes and Misdemeanors, April 22 and 23, 1868. 8vo pamph. Washington. 1868. Bowling {W.K.,M.D.). Historical Address to the Graduating Class of 1868, in the Medi- cal Department of the University of Nashville. 2d ed. 8vo pamph. Nashville, Tenn. Brandt {Johann Friedrich). Zoogeographische und Palasontologische Beitrage (aus B. II. der 2e Ser. der " Verb, der Russ. Kais. Min. Gesell. zu St. Petersburg " besonders abgedruckt). 8vo. St. Petersburg. 1867. Mittheilungen iiber die Naturgeschichte des Mammuth oder Mamont (Elephas primigenius). 8vo pamph. St. Petersburg. 1866. Nochmaliger Nachweiss der Vertilgung der Nordischen oder Stel- ler'schen Seekuh (Rhytina Borealis). 8vo pamph. Moscow. 1866. Brigham ( William T., A. M.). Notes on the Volcanoes of the Hawaiian Islands. With a His'- tory of their various Eruptions. [From the Mem. of the Boston Soc. of Nat. Hist. Vol. I. Part III.] 4to. Boston. 1868. Buchenau {Dr. Franz). Der Bluthenstand der Juncaceen. 8vo pamph. Bremen. 1865. VOL. VIII. 12 90 PROCEEDINGS OF THE AMERICAN ACADEMY Caligny (Anatole de). Notice sur les Travaux Scientifiques de M. Anatole de Caligny. 4to pamph. Versailles. 1862. Extract du Rapport sur le Concours pour le Prix de Meeanique. [Acad. Roy. des Sc, Seance publique, 30 Dec, 1839]. 4to pamph. Paris. 1839. Rapport sur la Machine Hydraulique h flotteur oscillant de M. Caligny. [Extr. des C. R. de lAcad. des Sc. Tome XIX. Seance du 7 Oct., 1844.] 4to pamph. Paris. Rapport sur un Memoire de M. Caligny, intitule, Description d'une Machine Hydraulique. [Extr. des C. R. de l'Acad. des Sc, 13 Jan., 1840.] 4to pamph. Paris. Experiences sur les Ajutages coniques divergents alternativement plonges dans l'Air et dans l'Eau. [Extr. des. C. R 19 Oct., 1844.] 4to pamph. Paris. Experiences en grand sur un nouveau Systeme d'Ecluses de Navi- gation, principes de Manoeuvres nouvelles. Par A. de Caligny. 4to pamph. Paris. 1863. Experiences sur une Machine Hydraulique a Tube Oscillant, sur des Effets de Succion a contre-courant, etc. Applications au Tra- vaux Publics et a la Physique Generale. Par A. De Caligny. [Extr. du Jour, de Math. Pures et Appliq. 2e Ser. Tome VII. 1862.] 4to pamph. Paris. Experiences en grand sur un nouveau Phenomene de Succion des Veines liquides. Objections resolues par des Faits. Par A. de Caligny. 4to pamph. Paris. Notice Historique et Critique sur les Machines k Compression d'Air du Mont-Cenis. Par le Marquis Anatole De Caligny. 4to pamph. Turin. 1860. Observations sur les Effets de la Chaleur dans les Siphons renver- s6s a trois Branches qui fonctionnent au Mont-Cenis. Lettre de M. de Caligny. [Extr. de C. R. hebd. des Seances de FAcad. des Sc. .... No. 10. 11 Mars, 1861.] 4to pamph. Versailles, Cotting (Benjamin E., M. D.). Disease, — a Part of the Plan of Creation. The Annual Dis- course before the Massachusetts Medical Society, May 31, 1865. 8vo. Boston. 1866. An Introduction to the Study of Clinical Medicine : An Intro- ductory Lecture to the Medical Class in the University at Rome, OF ARTS AND SCIENCES : OCTOBER 13, 1868. 91 Italy. Translated from the Italian by the Author. 8vo pamph. Boston. 1866. Curtis {Rev. M. A., D. D., etc.). Geological and Natural-History Survey of North Carolina. Part III. Botany : Containing a Catalogue of the Indigenous and Naturalized Plants of the State. 8vo. Raleigh. 1867. Daniels {Edward). A Treatise on the Nohl Smelting Furnace and Process for gen- erating Heat economically. 8vo pamph. Chicago. 1867. Darrein {Charles, M. A., F. R. S., etc.). The Variation of Animals and Plants under Domestication. In 2 vols. With Illustrations. 8vo. London. 1868. On the various Contrivances by which British and Foreign Or- chids are fertilized by Insects, and on the good Effects of Intercross- ing. With Illustrations. 12mo. London. 1862. Davis {Rear-Admiral Charles H., Superintendent of the Naval Obser- vatory) . Report on Interoceanic Canals and Railroads between the At- lantic and Pacific Oceans. 8vo. Washington. 1867. On the Latitude and Longitude of the U. S. Naval Observatory, Washington, and the Declinations of certain Circumpolar Stars. By Simon Newcomb, Prof. U. S. N. [Appendix to the Introduction to the Washington Astronomical Observations for 1864.] 4to pamph. Washington. Deane ( Charles). A True Relation of Virginia. By Captain John Smith. With a>n Introduction and Notes by Charles Deane. 4to. Boston. 1866. De La Rue {Warren), Stewart {Balfour), and Loewy {Benjamin). Researches on Solar Physics : 2d Series (in continuation of 1st Series). Area-measurements of the Sun-Spots observed by Carring- ton during the Years from 1854-60 inclusive, and Deductions therefrom. 4to pamph. London. 1866. Derby {George, M. D.). An Inquiry into the Influence upon Health of Anthracite Coal, when used as Fuel for warming Dwelling-Houses. With some Remarks upon Special Evaporating Apparatus. 16mo pamph. Boston. 1868. Forbes {David, F. R. S., F. G. S, etc.). On the Alleged Hydrothermal Origin of certain Granites and 92 PROCEEDINGS OF THE AMERICAN ACADEMY Metamorphic Rocks. [Extr. from the Geolog. Mag., Vol. IV. No. 2, February, and No. 5, May, 1867.] 2 pamph. 8vo. Francis (James B., Civil Engineer, etc.). Lowell Hydraulic Experiments. Being a Selection from Experi- ments on Hydraulic Motors, on the Flow of Water over Weirs, in open Canals of uniform rectangular Section, and through submerged Orifices and diverging Tubes, made at Lowell, Massachusetts. Second Edition, revised and enlarged, with many new Experiments, and illustrated with 23 Copper-Plate Engravings. 4to. New York. 1868. Frauenfeld ( George Hitter von). Zoologische Miscellen. IV., V., VI. 3 pamph. 8vo. Wien. Gajjield (Thomas). Action of Sunlight on Glass. [From Am. Jour, of Sc. and Arts. September and November, 1867.] 8vo pamph. New Haven. Garratt (Alfred C, M. D., etc.). Medical Electricity, embracing Electro-Physiology and Electricity as a Therapeutic, with special reference to Practical Medicine : showing the most approved Apparatus, Methods, and Rules for the Medical Uses of Electricity in the Treatment of Nervous Diseases. 3d ed., revised and illustrated. 8vo. Philadelphia. 1866. Gibbs ( Wolcott, M. D., Rumford Prof, in Harvard University). On Certain Points in the Theory of Atomicities. [From Am. Jour, of Sc. and Arts. Vol. XLIV. November, 1867.] 8vo. New Haven. Contributions to Chemistry, from the Laboratory of the Law- rence Scientific School. No. 3. 1. On a new General Method of Volumetric Analysis. [From Am. Jour, of Sc. and Arts. Vol. XLIV. September, 1867.] 8vo. New Haven. Goppelsroder (Br Friedrich). Ueber die Chemische Beschaffenheit von Basel's Grund-Bach- Fluss-und Quell- Wasser, mit besonderer Berucksichtigung der Sani- tarischen Frage (als erster Theil). Separat-Abdruck aus den Ver- handlungen der Baslerischen Naturforschenden Gesellschaft. Mit Neun Tabelben. 8vo. Basel. 1867. Beitrag zur Priifung der Kuhmilch. Mit besonderer Beriichsich- tigung der Milchpolizei. 8vo pamph. Basel. 1866. Gould (Benjamin Apthorp). Reduction of the Observations of Fixed Stars, made by Joseph OF ARTS AND SCIENCES : OCTOBER 13, 1868. 95 Le Paute D'Agelet, at Paris, in 1773-1785, with a Catalogue of the Corresponding Mean Places referred to the Equinox of 1800. [From the Mem. of the Nat. Acad, of Science, Vol. I.] 4to. Wash- ington. 1866. Grebenau (Heinrich). Beitrag zur Humphreys-Abbotschen Theorie der Bewegung des Wassers in Fliissen und Canalen. Separat Abdruck aus der Zeitschrift des Osterr. Ing. und Archit.-Vereins VII. Heft. Pamph. 1867. Green {Samuel A., M. D.). The New Complete System of Arithmetic, composed for the Use of the Citizens of the United States. By Nicolas Pike, A. M., A. A. S. 12mo. "Worcester, Mass. 1798. Haast (Dr. Julius, F. L. S., F. G.S.). Lecture on the West Coast of Canterbury, delivered to the Mem- bers of the Mechanics' Institute on the Evening of Monday, Sep- tember 25, 1865. Pamph. Christchurch. 1865. Report on the Geological Exploration of the West Coast. Pamph. Christchurch. 1865. Report on the Geological Formation of the Timaru District, in Reference to obtaining a Supply of Water. Pamph. Christchurch. 1865. Report on the Headwaters of the River Waitaki. Christchurch. 1865. On the Lake Basins and Glaciers of New Zealand .... with an Introduction by Sir R. J. Murchison, K. C. B., etc. [From the Quarterly Jour, of the Geolog. Society for May, 1865.] 8vo pamph. London. Canterbury Times. Vol. I. No. 22. December 2, 1865. 4to. Newspaper. Christchurch. Hayes (John L.). Transactions of the National Association of Wool Manufacturers. 1865, 1866. 8vo pamph. Boston. 1866. Hunt (F. Sterry). Reports on the Gold Region of the County of Hastings. By F. Sterry Hunt and A. Michel. 12mo pamph. Montreal. 1867. Hyatt (Afpheus). Observations on Polyzoa, Sub-Order Phylactola^mata. With 9 plates. [From Proc. Essex Inst., V., 4 and 5.] 8vo pamph. Salem. 1866-68. 94 PROCEEDINGS OF THE AMERICAN ACADEMY Jackson (Charles T.). Colwells, Shaw, and Willard's Improvements in the Construction of Pipes for conducting Water and Liquids for Domestic Use. 8vo pamph. New York. 1866. Jarvis (Edward, 31. D.). Causes of Insanity. An Address delivered before the Norfolk (Mass.) District Medical Society, May 14, 1851. 12mo pamph. On the Supposed Increase of Insanity. By Edward Jarvis, M. D., of Dorchester (Mass.). [Reprinted from the Am. Jour, of Insanity.] 8vo pamph. Memoir of the Life and Character of George Cheyne Shattuck, M. D., late President of the American Statistical Association. Read before the Association, April 12, 1854. By Edward Jarvis, M. D. 8vo pamph. Influence of Distance from, and Nearness to, an Insane Hospital, on its Use by the People. By Edward Jarvis, M. D. 8vo pamph. Address delivered at the Laying of the Corner-stone of the In- sane Hospital at Northampton, Mass. By Edward Jarvis, M. D. 8vo pamph. Northampton. 1856. On the System of Taxation prevailing in the United States, and especially in Massachusetts. By Edward Jarvis, M. D., Pres. of Am. Statist. Assoc. [Read before Sec. (F.) of the Br. Assoc, for the Adv. of Sc. at Oxford, 3d July, I860.] From Jour. Stat. Soc. of London, September, 1860. 8vo pamph. Connection of Occupation with Longevity. By Edward Jarvis, Pres. of Stat. Assoc. 8vo pamph. Annual Report of the School Committee of the Town of Dor- chester for the Year ending March 2, 1868. 8vo pamph. Boston. 1868. Thirteenth Annual Report of the Receipts and Expenditures of the Town of Dorchester, with Reports of the Selectmen, etc., for the Year ending January 31, 1868. 8vo pamph. Boston. 1868. " Memorial (of the Trustees of the Worcester Lunatic Hospital) to the Honorable the Senate and House of Representatives of Massachusetts, in General Court assembled. House .... No. 1. 8vo pamph. 1865. Memorial of the Boston Sanitary Association to the Legislature of Massachusetts, asking for the Establishment of a Board of Health, and of Vital Statistics. 8vo pamph. Boston. 1861. OF ARTS AND SCIENCES : OCTOBER 13, 1868. 95 Sixth Census of the United States. Memorial (of a Committee of the Am. Statist. Assoc.) to the Honorable the Senate and House of Representatives in Congress assembled. 8vo pamph. Thirty-Sixth Annual Report of the Trustees of the Perkins In- stitution, and Massachusetts Asylum for the Blind. October, 1867. 8vo pamph. Boston. 1868. Twentieth Annual Report of the Trustees of the Massachusetts School for Idiotic and Feeble-Minded Youth. October, 1867. 8vb pamph. Boston. 1868. Boston Medical and Surgical Journal. Vol. LXXIV. No. 8. 8vo. Boston. 1866. An Appeal to the Citizens of Pennsylvania for Means to provide Additional Accommodation for the Insane. 24mo pamph. Phila- delphia. 1854. An Address delivered before the Berkshire Medical Institute, •November 24, 1863. By Pliny Earle, A. M., M. D. 8vo pamph. Utica, N. Y. 1867. Jenchs {Hon. T. A.). Civil Service of the United States. [Reprinted from the N. A. Review for October, 1867.] 8vo pamph. Boston. 1867. Jordan ( William Leighton, F. R. G. S.). A Treatise on the Action of Vis Inertia? in the Ocean. With Remarks on the Abstract Nature of the Forces of Vis Inertiae and Gravitation, and a new Theory of the Tides. 8vo. London. 1868. Kneeland (Samuel, M. D.). On Economy of Fuel, and the Consumption of Smoke, as effected by " Amory's Improved Patent Furnace," with an Investigation of the Principles involved. 8vo pamph. Boston. 1866. Kopp (E.). International Exhibition, 1862 Reports by the Juries. Class II. Section A. Chemical Products and Processes. Repor- ter : A. W. Hofmann, Ph. D., LL. D., F. R. S., etc. 1 vol. 8vo. Lea (Isaac, LL. D., etc.). Observations on the Genus Unio, etc Vol. XI. 4to pamph. Philadelphia. Index to Vols. I. - XI. of Observations on the Genus Unio, etc. 4to pamph. Philadelphia. 1867. 96 PROCEEDINGS OF THE AMERICAN ACADEMY Mann (Horace). Enumeration of Hawaiian Plants. [From Proc. Am. Acad, of Arts and Sciences. Vol. VII.] 8vo pamph. Cambridge. 1867. Marcou (Jules). Notice sur.les Gisements des Lentilles Trilobitiferes Taconiques de la Pointe-Levis, au Canada. [Extr. du Bull, de la Soc. Geol. de France. 2e Ser. Tome XXI. p. 236.] 8vo pamph. Paris. 1864. Le Niagara quinz Ans apres. [Extr. du Bull, de la Soc. Geol. . . . . 2e Ser. Tome XXII. p. 190.] 8vo pamph. Paris. Sur le Dyas. [Extr. du Bull, de la Soc. Geol Se>. 2. Tome XXIII. p. 284 1866.] 8vo pamph. Paris. Sur divers Armes, Outils et Traces de 1'Homme Americain. [Extr. du Bull Tome XXIII. p. 374. 1866.] 8vo pamph. Paris. La Faune Primordiale dans le Pays de Galles et la Geologie Californienne. [Extr. du Bull, de la Soc. Geol. de France. 2e Ser. Tome XXIII. p. 552. 1866.] 8vo pamph. Paris. Martius (Carl Fr. Ph. von, Mittgl. der k. Bay. Akad. der Wissen- schaften, etc.). Akademische Denkreden. 8vo. Leipzig. 1866. Melloni ( Gav. Macedonia). Elettroscopio, et Rapporto della Commissione Nominata dall' Acca- demia delle Scienze per eseminare il nuovo Elettroscopio del Cav. Melloni. 4to pamph. Naples. 1854. Mutter (Dr. Friedrich). Reise der Osterreichischen Fregatte Novara Linguisti- scher Theil. 4to. Vienna. 1867. Newberry (J. S., M. D.). Description of Fossil Plants from the Chinese Coal-Bearing Rocks, being Appendix No. 1 of Geological Researches in China, Mongo- lia, and Japan, by Raphael Pumpelly. [Extr. from Smithson. Con- trib. to Knowledge.] 4to pamph. Philadelphia.. Packard (A. S., Jr., M.D.). A Guide to the Study of Insects, and a Treatise on those Inju- rious and Beneficial to Crops. For the Use of Colleges, Farm- Schools and Agriculturists 12mo pamph. Salem. 1868. Paine (Martyn, A. M, M. D., LL. D, etc.). The Institutes of Medicine. 8th edition. Revised. 8vo. New York. 1867. OF ARTS AND SCIENCES : OCTOBER 13, 1868. 97 Parker {Henry T.). Chemical Handicraft : A Classified and Descriptive Catalogue of Chemical Apparatus suitable for the Performance of Class Experi- ments, for every Process of Chemical Research, etc. 8vo. Lon- don. 18G6. Perthes (Justus). Die Ersten Aufnahmen der Englischen Armee in Abessinien. Nov., 1867, bis Jan., 1868. Mit 2 Karten (aus Petermann's Geogr. Mitth. 1868. Heft 2). 4to pamph. Gotha. Chart of the World on Mercator's Projection. 4e Auflage. 1 Cht. in 8 Pts. Gotha. 1867. Pickering (Edward C). Essay on the Comparative Efficiency of Spectroscope Prisms of Different Angles. [From Am. Jour, of Sc. and Arts. Vol. XLV. May, 1868.] 8vo pamph. New Haven. Eighth and Ninth Annual Reports of the Board of Regents of the Smithsonian Institution, to January 1, 1854, and to January 1, 1855. 2 vols. 8vo. Washington. 1854, 1855. Annual Report .... for the Year 1859. 8vo. "Washing- ton. 1860. Pimentel (D. Francisco).. La Economia Politica aplicada a la Proprietad Territorial en Mexico. 8vo. Mexico. 1866. Putnam (O. G., M.J).). Diary of the Weather, kept by Dr. James Jackson. July 24, 1803, to July 21, 1804: June 20, 1826, to December 31, 1865. 12 vols. Manuscript. Quetelet (Ad.). Sciences Mathematiques et Physiques chez les Beiges. Au Com- mencement du XIXe Siecle. 8vo. Brussels. 1866. Annuaire de FObservatoire Royal de Bruxelles. 1866. 33e An- nee. 18mo. Brussels. 1865. Observations des Phenomenes Periodiques pendant TAnnee 1863. [Extr. du Tome XXXVI. des Mem. Acad. Roy. de Belgique.] 4to pamph. Brussels. Des Lois Mathematiques concernant les Etoiles Filantes. [Extr. des Bull, de l'Acad. Roy. de Belgique. 2e Ser. Tome XXIII. No. 2. 1867.] 8vo pamph. Brussels. Etoiles Filantes. Publication des Annales Meteorologiques de VOL. VLH. 13 98 PROCEEDINGS OF THE AMERICAN ACADEMY l'Obs. Roy. Sur l'Heliographie et la Stenographic Orages ob- serves a Bruxelles et a Louvain, du 7 Fevr. jusqu'a la fin de Mai. [Extr. des Bull.] 8vo pamph. Brussels. Communications sur le 17me Volume des Ann. de l'Obs. Roy. de Bruxelles. [Extr. des Bull.] 8vo pamph. Brussels. Deux Lettres de Charles-Quint a Francois Rabelais. Note de M. Ad. Quetelet. 8vo pamph. Brussels. Quetelet (]\f Ernest). Sur l'Etat de F Atmosphere a Bruxelles, pendant l'Annee 1865. [Extr. des Bull, de l'Acad. Roy. de Belgique. 2e Ser. Tome XXI. No. 2.] 8vo pamph. Brussels. Quincy (Edmund). Life of Josiah Quincy, of Massachusetts. By his Son, Edmund Quincy. Fourth edition. 8vo. Boston. 1867. Radcliffe Trustees. Astronomical and Meteorological Observations made at the Rad- cliffe Observatory, Oxford, in the Year 1863 Vol. XXIII. 8vo. Oxford. 1866. . Kegel (E.). Bemerkungen fiber die Gattungen Betula und Alnus nebst Beschreibung einiger neuer Arten 8vo pamph. Moscow. 1866. Enumeratio Plantarum in Regionibus Cis- et Transiliensibus a CI. Semonovio Anno 1857 Collectarum Auctoribus, E. Regel et F. ab Herder. 8vo. Moscow. 1 866, Rice (Hon. Alexander H.). Message of the President of the United States, communicating .... Information in Relation to the States of the Union lately in Rebellion. 8vo pamph. Washington. 1865. Report of the Joint Committee on Reconstruction. 12mo pamph. Washington. Persons and Capital employed in Manufactures. Letter from the Secretary of the Interior, in Answer to a Resolution of the House .... Pamph. Washington. 1866. Oration on the Life and Character of Henry Winter Davis, de- livered in the Hall of the House of Representatives, February 22, 1866. By Hon. John A. J. Creswell. 8vo pamph. Wash- ington. Proceedings on the Death of Hon. Solomon Foot, including the OF ARTS AND SCIENCES : OCTOBER 13, 1868. 99 Addresses delivered in the Senate and House of Representatives, on Thursday, April 12, 1866. 8vo pamph. Washington. Laws of the United States relating to Internal Revenue, in Force August 1, 1866, except where otherwise specially provided Prepared under the Direction of the Commissioner of Internal Rev- enue. 8vo. Washington. 1866. Acts and Resolutions of the First Session of the Thirty-Ninth Congress, begun on Monday, December 4, 1865, and ended on Sat- urday, July 28, 1866. 8vo pamph. Washington. Letter from the Secretary of the Treasury, transmitting Report upon the Mineral Resources of the States and Territories west of the Rocky Mountains. 8vo. Washington. 1867. Scheffier (Dr. Hermann). Die Gesetze des Raumlichen Sehens. Ein Supplement der Phy- siologischen Optik. Mit. 10 Lithog. Tafeln. 8vo. Braun- schweig. 1866. Schmidt (L. W.). Scientific Catalogue. A Bibliographical Guide to the Literature of Science. 8vo. New York. 1867. Smith (Henry Ecroyd). Notabilia of the Archaeology and Natural History of the Mersey District during three Years, 1863, 1864, 1865. 8vo. Liverpool. 1867. Spence (Peter). Coal, Smoke, and Sewage. Scientifically and practically Con- sidered. With Suggestions for the Sanitary Improvement of the Drainage of Towns. 12mo pamph. Manchester. 1867. Spofford (R. A.). Report of the Librarian of Congress, for the Year ending Decem- ber 1, 1866. 8vo pamph. Washington. 1867. Spon (E. § F. K). Catalogue of Scientific Books, comprising Agriculture, Annuities, Architecture, Brewing, Chemistry, Civil and Mechanical Engineer- ing, etc. 8vo. London. 1867. Stevens (Hon. T.). Speech of Hon. T. Stevens, of Pennsylvania, delivered in the House of Representatives, March 19, 1867, on the Bill (H. R. No. 20), relative to Damages to Loyal Men, and for other Purposes. 8vo pamph. Washington. 1867. 100 PROCEEDINGS OF THE AMERICAN ACADEMY Store?' (Prof. F. H.). Chili. Notice Statistique sur le Chili. 8vo pamph. Montereau. Perou. Notice sur le Guano de Perou. 12mo paraph. Havre. 18G7. Studi sul Corpo Luteo del Vacca. Adolfo Lieben et E. Pic- colo. [Estratto dal Giornale di Scienzi Naturali ed Economiche. Vol. II.] 4to pamph. Palermo. 1867. Sulla Costituzione dei Carburi d'Idrogeno Cn H2n. Adolfo Lieben. [Estratto dal Giornale Vol. II.] 4to pamph. Palermo. Sintesi degli Alcoli per mezzo dell' Ettere Clorurato. Adolfo Lieben. [Estratto dal Giornale. .... Vol. II.] 4to pamph. Palermo. On the alleged Hydrothermal Origin of certain Granites and Metamorphic Rocks. By David Forbes, F. R. S., etc. [Extr. from the Geological Magazine, Vol. IV. Nos. 2 and 5.] 2 pamphs. 8vo. London. 1867. Catalogue of Contributions transmitted from British Guiana to the Paris Universal Exhibition of 1867. Printed for the Com- mittee of Correspondence of the Royal Agricultural and Com- mercial Society. 8vo. London. 1867. Letter to His Grace the Duke of Buccleuch, President Elect of the British Association for the Advancement of Science, 1867 - 68, on the Quadrature of the Circle. By James Smith, Esq. 8vo pamph. Liverpool and London. 1867. Sumner (Hon. Charles). Report of the Superintendent of the Coast Survey, showing the Progress of the Survey during the Years 1863, 1864, 1865. 4to. 3 vols. Washington. 1864, 1866, 1867. Report of the Committee on the Conduct of the War. On the Attack of Petersburg, on the 30th day of July, 1864. 8vo. Washington. 1865. The One-Man Power. Address delivered by Hon. Charles Sumner, at the Music Hall, Boston, October 2, 1866. 12mo pamph. Boston. 1866. Speech of Hon. Charles Sumner, of Massachusetts .... on the Cession of Russian America to the United States. 8vo pamph. Washington. 1867. Letter from the Secretary of War, in Answer to a Resolution of OF ARTS AND SCIENCES: OCTOBER 13, 1868. 101 the House, of December 20, 1866, transmitting Report of the Chief of Engineers, with General Warren's Report of the Surveys of the Upper Mississippi River and its Tributaries. 8vo pamph. Wash- ington. 1867. Supplemental Report of the Joint Committee on the War, in two vols. 8vo. Washington. 1866. Northwestern America : showing the Territory ceded by Russia to the United States. Compiled for the Department of State, at the United States Coast Survey Office. B. Peirce, Superintendent. 1867. Map. Washington. 1867. Annual Report of the Board of Regents of the Smithsonian In- stitution .... for the Year 1866. 8vo. Washington. 1867. Report of the Commissioner of Agriculture, for the Year 1866. 8vo. Washington. 1867. Argument of Hon. Charles Sumner : Can the Chief Justice presiding in the Senate rule or vote ? Unbroken Series of Au- thorities against this Claim. 8vo pamph. Washington. 1868. Reconstruction. Speech of Hon. Lot M. Morrill, of Maine, in the Senate of the United States, February 5, 1868. 8vo pamph. Washington. 1868. Opinion of Hon. Charles Sumner, of Massachusetts, in the Case of the Impeachment of Andrew Johnson, President of the United States. 12mo pamph. Washington. 1868. Validity and Necessity of Fundamental Conditions on States. Speech of Hon. Charles Sumner, of Massachusetts, in the Senate of the United States, June 10, 1868. 8vo pamph. Washington. Trembley {J. B., M. D.). Annual Meteorological Synopsis for the Year 1866, in the City of Toledo, Ohio. 8vo pamph. Toledo. Warren (J. Mason, 31. D., etc.). Surgical Observations, with Cases and Operations. 8vo. Bos- ton. 1867. Washburn (Emory, LL. D.). Testimony of Experts. A Paper read before the American Academy of Arts and Sciences. [From the American Law Review.] 8vo pamph. Boston. 1866. Remarks : Policy and Management of the Boston and Worcester Railroad. 8vo pamph. 102 PROCEEDINGS OF THE AMERICAN ACADEMY Washington (Hon. Peter G.). Oration delivered before the Association of the Oldest Inhabitants of the District of Columbia, in Washington, 4th of July, 1867. 12mo pamph. Washington. 1867. Wetherill (Charles M., PL D., M. D., etc.). Experiments on Itacolumite (Articulite), with the Explanation of its Flexibility, and its Relation to the Formation of the Diamond. .... 8vo pamph. New Haven. 1867. Whitney ( William Dwight, Prof, of Sanskrit, and Instructor in Modern Languages, in Yale College). Language, and the Study of Language : Twelve Lectures on the Principles of Linguistical Science. 8vo. New York. 1867. Wilder (Burt G., S. B., M. D.). Researches and Experiments upon Silk from Spiders, and upon their Reproduction. By Raymond Maria de Termeyer, a Spaniard. Translated from the Italian. Revised by Burt G. Wilder, S. B., M. D. [Extr. from the Proc. of the Essex Institute. Vol. V.] 8vo pamph. Salem. 1866. Wilson (Hon. Henry). Memorial Address on the Life and Character of Abraham Lin- coln, delivered at the Request of both Houses of the Congress of America before them, in the House of Representatives, at Wash- ington, on the 12th of February, 1866. By George Bancroft. 8vo. Washington. 1866. Report of the Joint Committee on Reconstruction, at the First Session, Thirty-Ninth Congress. 8vo. Washington. 1866. Report of the Secretary of the Treasury, on the State of the Finances, for the Year 1866. 8vo. Washington. 1866. Report of the Commissioner of Agriculture, for the Year 1865. 8vo. Washington. 1866. Annual Report of the Commissioner of Patents, for the Year 1865. Vols. I., II., III. 8vo. Washington. 1867. Winkler (T. C). Musee Teyler. Catalogue Syst^matique de la Collection Palason- tologique. 4e et 5e Livr. 2 pamphs. 8vo. Harlem. 1865,1866. Wyman (Jeffries, M. D., etc.). Observations on Crania. 8vo pamph. Boston. 1868. OF ARTS AND SCIENCES : DECEMBER 8, 1868. 103 Six hundred and first Meeting. November 11, 1868. — Statute Meeting. The Vice-President in the chair. The Vice-President called the attention of the Academy to the recent decease of Mr. Octavius Pickering of the Resident Fellows. On the motion of the Librarian it was voted, That the duplicate volumes of the Massachusetts Laws now in the Library of the Academy be given to the Historical Society of New York. The following gentlemen were elected members of the Academy. Nathaniel E. Atwood, of Provincetown, to be a Resident Fellow in Class II., Section 3. Dr. Hermann Hagen, of Cambridge, to be a Resident Fellow in Class II., Section 3. Horace Mann, of Cambridge, to be a Resident Fellow in Class II. , Section 2. Alpheus S. Packard, Jr., of Salem, to be a Resident Fellow in Class II., Section 3. Edmund Quincy, of Dedham, to be a Resident Fellow in Class III., Section 3. Sir Charles Wheatstone, of London, to be a Foreign Hon- orary Member in Class I., Section 3, in the place of the late Sir David Brewster. Herrmann Ludwig Ferdinand Helmholtz, of Heidelberg, to be a Foreign Honorary Member in Class I., Section 3. Six hundred and second Meeting. December 8, 1868. — Monthly Meeting. The Vice-President in the chair. The Vice-President called the attention of the Academy to the decease of Mr. Horace Mann, of Cambridge, since the last meeting, at which he was elected a Resident Fellow. 104 PROCEEDINGS OF THE AMERICAN ACADEMY A letter was read from Professor A. Braun, of Berlin, of the Committee on the Ehrenberg Testimonial, in answer to an official communication from the President. Professor Winlock reported the preparation, by the Rumford Committee, of a list of Count Rumford's works. Six hundred and third Meeting. January 12, 1869. — Monthly Meeting. The Vice-President in the chair. On the motion of Professor Winlock, a committee was ap- pointed to memorialize Congress relative to appropriations to aid in the observation of the solar eclipse of August, 1869. The following gentlemen were appointed on this committee : Professor J. Winlock, Dr. Thomas Hill, Mr. J. I. Bowditch, Professor J. D. Runkle, and Mr. Thomas Sherwin. On the motion of Commodore Rodgers, the committee were requested to communicate to other learned bodies the wishes of the Academy. On the motion of Mr. Folsom, Professor Pickering was re- quested to prepare for the Academy a communication on the Spectroscope and its uses. Six hundred and fourth Meeting. January 27, 1869. — Statute Meeting. Honorable C. F. Adams was chosen President pro tempore. Professor Runkle was appointed to serve as Secretary pro tempore. In the absence of the chairman and other members of the committee, Professor Runkle reported that the committee ap- pointed at the preceding meeting to prepare a memorial to Congress for aid in observing the total eclipse of the sun, on the seventh of August next, had attended to the duty assigned them. OF ARTS AND SCIENCES : MARCH 9, 1869. 105 Six hundred and fifth Meeting. February 9, 1869. — Monthly Meeting. The Vice-President in the chair. In the absence of the Recording Secretary, Dr. S. Kneeland was appointed Secretary pro tempore. The Vice-President announced that the committee appointed to memorialize Congress for a grant of money for the obser- vation of the eclipse of the sun, August 7, 1869, having at- tended to that duty, had received an answer from Honorable G. S. Boutwell that the steps necessary to secure the grant would be taken. Mr. Paul B. DuChaillu, present by invitation, gave a brief . account of the geography and meteorology of Equatorial Africa. Professor J. D. Whitney gave an account of his recent in- vestigations in California into the subject of the occurrence of human remains and works of art in rocks considered by him as being of Pliocene age. He remarked : — That while nothing had been discovered to invalidate the testimony brought forward at the meeting of the National Academy, in August last, at Northampton, in regard to the Calaveras County skull, im- portant additional evidence of other discoveries of a similar character, had been obtained. There are now three distinct cases of the occur- rence of human remains or works of art in rocks of Pliocene age, known to him, each vouched for by the testimony of respectable witnesses, given under circumstances in which there was no possibility of col- lusion or probability of deceit. As I have opportunity I am dili- gently engaged in collecting facts on this important subject, and, without unnecessary delay, the whole will be laid before the scien- tific world in proper form, and properly illustrated with maps and sections. Six hundred and sixth Meeting. March 9, 1869. — Monthly Meeting. In the absence of the regular presiding officers, Mr. John A. Lowell was chosen to take the chair. VOL. VIII. 14 106 PROCEEDINGS OF THE AMERICAN ACADEMY The Recording Secretary read letters from Dr. Herrmann Hagen, acknowledging his election into the Academy, and from Dr. C. A. Martius, of Munich, announcing the death of his father, Dr. Carl Friedrich Philipp von Martius ; also letters relative to exchanges, and a letter from a committee of the Suffolk District Medical Society, asking the co-operation of the Academy in discussing the subject of expert testimony. This communication was referred to a committee of the Academy appointed in March, 1866, to consider the same subject ; and this committee were authorized to add to their number. Professor E. C. Pickering made a communication on the Spectroscope, with experimental illustrations of its various constructions and its uses in chemistry and astronomy. Six hundred and seventh Meeting. April 13, 1869. — Monthly Meeting. In the absence of the regular presiding officers, Mr. John A. Lowell was chosen to take the chair. Mr. Ritchie exhibited some of the effects of monochromatic light by means of an apparatus producing a bright sodium light. Six hundred and eighth Meeting. May 11, 1869. — Monthly Meeting. In the absence of the regular presiding officers, Hon. C. F. Adams was chosen to take the chair. Professor Peirce made the following: communication : — *£> The phenomena which were ably presented by the distinguished geologist, Mr. Lesley, to the National Academy of Sciences, and which seem to demonstrate that the outer shell of the earth has sensibly shrunk, in some directions at least, since its original formation, naturally invite the attention of physicists to the possible causes of such a result. The most obvious cause of the shrinking of the earth is its cooling. But to shrink two per cent linearly, which is that deduced by OF ARTS AND SCIENCES: MAY 11, 1869. 107 Mr. Lesley from the observed geological phenomena, involves a prob- able cooling of the whole earth of not less than two thousand degrees centigrade, which would require that its original temperature should be higher than would be consistent with the solidity of these shrunk strata. Another source of change of form, which would produce shrinkages in different directions in different parts of the earth, is to be found in the diminution of oblateness arising from the diminished velocity of rotation upon the axis. Such diminution of the velocity of rotation has several years ago been shown by Mr. Ferrel to be caused by the action of the moon in producing the tides ; this is, therefore, a true cause, and it is only necessary to examine how great its amount can be under any circumstances. This is all which is proposed in the present investigation, and the application to facts is reserved for geologists. It is sufficient, for the present object, to regard the earth as homo- geneous. Under this condition Laplace has shown that the time of the earth's rotation could not be less than about one tenth of a day, which corresponds to a ratio of the axis of the equator to that of the pole, equal to 2.7197, and an equatorial circumference 94 per cent greater than the present one. Such is then the amount of shrinking which might have taken place, if any cause could be assigned capable of producing so great a reduction of the earth's velocity. The whole surface of the earth would have been about 130 per cent larger than at present. But the only cause at present known which would produce a sensi- ble reduction of the earth's velocity is the lunar action upon the tides. But in this mutual action between the moon and the earth, the common rotation area of the earth and moon must remain unchanged. The question then arises, How great a reduction of the rotation area of the earth would have passed into that of the moon ? In this inquiry it may be assumed that the moon revolves in a circular orbit in the plane of the earth's equator. Now the moon's rotation area is 3.716 times the earth's. But if, in the origin, it had revolved just in contact with this earth, its rotation area would not have been less than 0.480 times the earth's, so that it could not have absorbed a rotation area from the earth greater than 3.236 times the earth's present rotation area, and therefore the earth's rotation area could never have exceeded 4.236 times that which it has at present. But, with the maximum velocity of rota- tion given by Laplace, the earth's rotation area would have been 108 PROCEEDINGS OF THE AMERICAN ACADEMY 37£ times greater than at present. It can never, therefore, have been reduced to so great an extent by the moon's action on the tides. But since, when the oblateness is small, the rotation area is nearly, propor- tional to the velocity, and the excess of the square of the equatorial above that of the polar axis is nearly proportional to the square of the velocity, this excess may have been originally nearly 18 times as great as at present, or about 15£ per cent of the square of the polar axis. This would correspond to a figure of the earth in which the equatorial radius would have been about 2^- per cent greater than at present ; so that it is sufficient to account for the observed phe- nomenon. This peculiar form of shrinkage would produce the highest moun- tains at the equator, and the tendency of the mountain ranges would then be to assume the direction of the meridian. But nearer the poles the mountains would be less elevated, and would rather tend towards the direction of the parallels of latitude. It is, next, expedient to consider the mechanical question of the loss of living force in the case of the moon's action upon the waters of the earth, and its effect upon their different motions. In this connection there are problems worthy of the attention of Geometers ; such as the relative motions of bodies rotating above the same vertical axis, towards which they are drawn by weights, and acting upon each other through the friction on the axis. For one of the bodies a rotating wheel may be substituted. There is also the case of two planets revolving about a primary, and acting upon each other through some form of friction. In this way, it will be seen that the planet or satellite once formed is constantly removed from the primary, and that planets tend to approach each other. It is interesting to consider whether this may not be one of the actual problems of nature. Six hundred and ninth Meeting. May 25, 1869. — Annual Meeting. In the absence of the regular presiding officers, Hon. Robert C. Winthrop was chosen to take the chair. The Chairman called the attention of the Academy to the recent decease of Hon. William Mitchell and of Dr. William Allen, both of them Resident Fellows. OF ARTS AND SCIENCES : MAY 25, 1869. 109 It was voted to adjourn this meeting at its close to the sec- ond Tuesday in June. It was voted to adjourn the stated meeting of August to the second Tuesday of September. Professor Runkle and Mr. Hill were appointed scrutineers of the election of officers, and Professor Watson and Dr. White scrutineers of the election of members. It was voted to close the polls at five o'clock. The Treasurer's report, duly audited, was received and ordered to be entered on the records. Dr. Pickering presented the report of the Library Commit- tee, which- was accepted. The report of the Rumford Committee, presented by Pro- fessor Winlock, was accepted, and a recommendation to pre- sent the Rumford Premium to George H. Corliss, for his im- provements in the Steam-Engine, was adopted. It was also voted, in accordance with the recommendations of this Committee, " That the sum of one hundred and twenty-eight dollars and fifty-six cents of the income of the Rumford Fund be appropriated for the purchase of certain books for the Library of the Academy. " That the sum of three hundred dollars be appropriated for the purchase of spectroscopic instruments to be used, under the direction of the Committee, in observing the solar eclipse of August next. " That one thousand dollars of the income of the Rumford Fund be appropriated for continuing the publication of the new edition of Count Rumford's works which has been begun by the Academy." Mr. F. W. Putnam addressed the Academy on the approach- ing meeting, at Salem, of the American Association for the Advancement of Science. Professor A. Agassiz, Dr. White, and Professor F. H. Storer. were appointed a committee to consider what action the Academy should take on the occasion of this meeting. The following appropriations were voted for the ensuing year : — 110 PROCEEDINGS OF THE AMERICAN ACADEMY For General Expenses, from the General Fund . . $ 2,200 " " from the Rumford Fund . 200 For Publication ....... 800 For the Library ....... 500 The following gentlemen were elected members of the Academy : — William T. Brigham, of Boston, to be a Resident Fellow in Class II., Section 1. Algernon Coolidge, of Boston, to be a Resident Fellow in Class II., Section 1. Alfred P. Rockwell, of Boston, to be a Resident Fellow in Class I., Section 4. Alpheus Hyatt, of Salem, to be a Resident Fellow in Class II., Section 3. Edward S. Morse, of Salem, to be a Resident Fellow in Class II., Section 3. The annual election resulted in the choice of the following officers for the ensuing year : — Asa Gray, President. George T. Bigelow, Vice-President. William B. Rogers, Corresponding Secretary. Chauncey Wright, Recording Secretary. Charles J. Sprague, Treasurer. Frank H. Storer, Librarian. Council. Thomas Hill, Josiah P. Cooke, }- of Class I. John B. Henck, Louis Agassiz, Jeffries Wyman, Charles Pickering, Robert C. Winthrop, George E. Ellis, }■ of Class III. Andrew P. Peabody, OF ARTS AND SCIENCES : MAY 25, 1869. Ill Rumford Committee. James B. Francis, Joseph Winlock, Morrill Wyman, Wolcott Gibbs, William B. Rogers, Josiah P. Cooke, Frank H. Storer. Committee of Finance. Asa Gray, ) gx OJ^cio^ by statute. Charles J. Sprague, j Thomas T. Bouve, by election. The other Standing Committees were appointed on the nomination of the President, as follows : — Committee of Publication. ' Joseph Lovering, Jeffries Wyman, Francis J. Child. Committee on the Library. Francis Parkman, Charles Pickering, John Bacon. Committee to audit the Treasurer's Accounts. Charles E. Ware, Theodore Lyman. Professor Whitney presented for publication the following letter from Baron Richthofen, giving an account of the geo- logical investigations in China up to March 1, 1869 : — I returned a few days ago from an exploration of the country ad- joining the Yang-tse-kiang, between Shanghai and Han-kau, a distance of six hundred geographical miles. I hired a fine boat, which was towed up the river by steamer, and then dropped gradually downward, ex- ploring right and left from the various stations which I made. The trip, which occupied altogether forty-five days, afforded much of interest, and I believe that I have established a good basis for further operations. You may be surprised that I selected a region which is so easy of 112 PROCEEDINGS OF THE AMERICAN ACADEMY access, and which would hardly seem to be invested with that charm of novelty which remoter portions of this vast Empire might afford. But the excellent charts existing of the lower part of the Yang-tse ex- hibit only its banks and shallows, while the country immediately adjacent is, with the exception of a few places, even less known than the borders of the upper portion of the river, above Han-kau. In attempting to give you a brief resume of some of my results, I must remark that I give them only as a preliminary notice, and am quite prepared to see them corrected and enlarged by my own future examinations. This was the first opportunity I had for getting somewhat acquainted with the sedimentary formations of any part of China. I soon became aware that I must abandon the views taken by my predecessors in Chinese geology, and had better commence from the a b c. Mr. Pumpelly's distinction of one great grauite-metamorphic formation, one great (Devonian) limestone formation, and one great subdivision embracing the Chinese coal-measures, of which a Triassic age- was made probable by Dr. Newberry, was based on observations made in other parts of China. I found it quite insufficient for the country which I visited, while the addition, by Kingsmill, of the Tung-ting sandstones, which he considers to fill out the gap between the granite and the " great limestone formation," was a slight step in advance, but not one by any means representing the variety of formations. The task of establishing their order of succession was not easy, and I had to work hard to accomplish this end. But the amount of evidence increased with the number of good sections, and I had the good fortune to find fossils in several localities, one of which is of some importance, as it yielded a large number and variety of shells in an excellent state of preservation, establishing for the rocks in which they occur the age of the mountain-limestone. These rocks can easily be recognized, and appear to be widely distributed in China. I give you the list of formations, with the local denomination, which I used in my note-books, and on my geological maps, for convenience' sake only? that I may refer to them in any letter I may send you here- after. The lowest formation observed is, — 1st. Ta-ko sandstone, a series of coarse variegated sandstones, not interrupted, so far as my observations extend, by conglomerates or shales. Red, lilac, purple, green, are the prevailing colors. Some beds are hard, but the greater part of the sandstone is remarkably soft, con- OF ARTS AND SCIENCES : MAY 25, 1869. 113 sidering that it belongs to a very ancient formation. Even where it is inclined at high angles, it retains this soft texture, unless this has un- dergone a change in. the immediate neighborhood of eruptive rocks. x The Tadio Mountains, a picturesque range of nearly two thousand feet in height, and situated about fifty miles east of Kiu-kiang, are almost entirely built up of these sandstones. They are here slightly inclined, and exposed in a thickness of at least two thousand five hundred feet. At another place I estimated the visible portion of the formation at four thousand feet ; but, as I never saw its lowest strata, nor the under- lying rocks, those figures mark the minimum of the actual thickness. 2d. Liu-shan schists. — This is a series of shales of from twelve hundred to three thousand feet in thickness, which are quite character- istic, being the only rocks of this kind on the lower Yang-tse. The formation appears, from the descriptions given of rocks occurring south of that river, to be largely distributed in eastern China, and to form a valuable horizon. The shales are, for the most part, clayey and sandy, and not unfrequently converted into clay-slate. The color varies from yellow and red in the former to dark green and gray in the latter varieties. An abundance of undeterminable remains of plants may be found. This formation and the former are distinguished from all those of subsequent age, by being usually intersected by numerous veins of white quartz. The Liu-shan is a short but very conspicuous moun- tain range, near Kiu-kiang, rising abruptly to the altitude of probably little less than three thousand five hundred feet. The shales form a belt at its eastern foot. 3d. Matsu limestone. — On the Matsu-shan, a prominent hill in the belt just mentioned, I observed, for the first time, the conformable superposition of limestone on the Liu-shan schists. I confirmed after- wards the observation in several other places. These are dark lime- stones, distinguished in their lowest portion by a ribboned appearance of all planes of fracture which intersect the stratification. It is caused by the predominance of silica in alternate layers. The main body of the limestone shows a certain brecciated structure and a dolomitic ap- pearance. Chert is abundant, but I found no characteristic fossils. The thickness of the formation is at least two thousand feet ; but as I never saw distinctly its upper portion, this figure may be too low. The deposition of these strata was followed by, — 4th. A period of great disturbances and outbreaks of granite. — The three formations which I have mentioned compose long ranges of VOL. VIII. 15 114 PROCEEDINGS OF THE AMERICAN ACADEMY hills, and I know of one instance only, namely, the Ta-ho range, where they can be observed in an almost undisturbed position ; generally they are inclined at steep angles, and contorted. Granite, in most instances, enters into the structure of these ranges, though in a varying ■ way, now intersecting the strata in large intrusive masses and veins, now accompanying them separately. It has, however, had a compara- tively slight metamorphosing influence. The purer limestone is con- verted into a coarse white marble ; the impure qualities are represented by thick beds of a highly silicious, slightly dolomitic, and imperfectly crystalline limestone of yellow color. The sandstone is partly con- verted into quartzite, and the shale into clay-slate. The granite also occurs by itself in mountain ranges. A bold range, prominent by its rugged outlines, as well as by its altitude (about three thousand five hundred feet), which rises abruptly out of the alluvial plain of the Yang-tse near the large city of Ngan-king, and accom- panies the river on its left bank for quite a distance, is completely built up of granite; in a few places only, marble and quartzite indicate detached portions of the strata which were intersected by the granite. It is probable that this granitic outburst marks one of the main features in the geology of eastern China, as there is little doubt that to it belongs the granite which, together with porphyry, composes almost exclusively the coast of China between Ningpo and Hong- Kong, a distance of seven hundred geographical miles. I observed it at Suchau, in the group of the Chusan Archipelago, and on the island of Hong-Kong. The granite of these three localities resembles that on the lower Yang-tse, not only in its petrographic character, but also in its geological features, as it is accompanied in these different places by detached and quite irregular portions of altered shales and quartzites. These and marble are mentioned, too, from nearly every place along the granitic coast of which I have any information. If the supposition of this identity, or rather contemporaneity, of the granitic outbursts of eastern China should prove correct, we may look for it as a guide in the geology of eastern Asia in general ; although I am inclined to believe, from former observations in Shantung, that there was still an older granitic epoch, connected with the thorough metamorphism of a more ancient series of formations than those here mentioned. 5th. Tung-ting sandstone. — All the formations which are now to be mentioned were not affected by the disturbances immediately OF ARTS AND SCIENCES : MAY 25, 1869. 115 connected with the outbreak of the granite. Probably the lapse of time between the deposition of 3 and 5 was of long duration, and it is quite likely that the gap may comprise a series of sedimentary deposits which are not visible at the surface in the regions visited by me. I did not even see in any place the lowest portion of the Tung-ting sand- stones. They form a rather uniform series of very hard, almost quartzose sandstones, which are visible in a thickness of at least four thousand feet, and form bold mountain ranges for themselves alone, the Liu-shan among others. The name was first used by Kingsrnill, and is derived from the island of Tung-ting-shan in Taihu Lake, sixty miles west of Shanghai. This is the only formation in regard to the position of which I do not feel quite certain. The next formation is, however, conformably underlain by what I consider to be the topmost layers of the Tung-ting sandstone, namely, a series of hardened, nodular clay, hard sandstone, and conglomerate of pebbles of quartz. 6th. Si-hio limestone. — This is a limestone formation of only six hun- dred feet in thickness. The rock is full of chert nodules, and contains numerous fossils, chiefly corals, encrinites, and brachiopods. Aulopora repens is of frequent occurrence among them, and other forms, too, indicate a Devonian age. The name is derived from a prominent hill, generally known as Single-tree hill, east of Nan-king, where I first found the fossils. 7th. Nan-king grits. — The last formation is conformably overlain by a gritty and purely quartzose sandstone, alternating frequently with a coarse conglomerate of perfectly rounded pebbles consisting exclusively of quartz. The color is mostly red, but where the strata are inclined at steep angles, light shades prevail, though the former color is still visible in concentric rings of a dark red color, which give a variegated appearance to every plane of fracture. Although this formation is largely developed at and around Nan-king, and forms bold hills capped with a coarse conglomerate, and rising to more than a thousand feet, I was unable to determine its thickness. It probably far exceeds two thousand feet. Certain dark shales which occur in the way of interstratification contain fossil plants, but I found no specimens that could be determined. 8th. Kitau limestone. — This is an important formation, overlaying the last conformably. Its name is derived from a prominent bluff situated midways between Han-kau and Kiu-kiaug, called Kitau, or 116 PROCEEDINGS OF THE AMERICAN ACADEMY Cock's Head, which is well known as a landmark to the navigator of the Yang-tse. There are three subdivisions of this formation : — a. The lower limestone. Hard, silicious varieties of light gray and reddish colors, carrying frequently an abundance of chert, prevail. The thickness of the layers varies from that of card-paper to many feet. The chert nodules increase in some places so much in quantity as to form complete layers by themselves, and lenticular masses of chert are frequently embedded in a soft calcareous sandstone inter- stratified in thin beds between the limestone. Traces of fossils may often be found in them. The limestone itself is frequently filled with, and in certain layers nearly made up of, the shells of a Fusulina which is distinguished from Fusulina cylindrica only by its more perfect cylindrical shape. I collected many beautiful specimens of it. This lower limestone is about fourteen hundred feet thick. b. A series of black sandy shales, black lydite, and soft sandstones. The lowest strata are highly fossiliferous, chiefly at Tso-dsu-kang near Ching-kiang, which is the before-mentioned distinguished local- ity. Large specimens of Productus semireticidatus, with shell, interior structure, and spines well preserved, would be sufficient for themselves to indicate the age of the mountain-limestone. They are accompanied by numerous other brachiopods, bivalves, corals, and Fenestellas, the latter being quite a> prominent feature. I collected sufficiently to give pleasant occupation to a geologist who would take the trouble to work up the material. The place where they were found is quite a curi- osity. There are a number of abandoned shafts, the waste dumps of which afford an easy opportunity for collecting the fossils ; otherwise they could hardly be discovered, as the ground is covered by vegeta- tion. As no reason for mining is apparent, it would at first seem as if a past generation had opened the shafts for the delight of future stray geologists, until one hears that these were flint-mines ; indeed, lenticular masses of chert are quite frequent in the soft strata. I may mention, besides, that among the fossils here found are none of those brachiopods which have been long since famous as an article of trade in the Chinese drug-stores. I believe, for various reasons, that they are derived from the Si-hio limestone before mentioned. The soft sandstone which follows higher up in this series carries a bed of coal, the lowest in position which I have found. All the mines once opened on this bed are abandoned, evidently at or little below water- evel. But the coal appears to be of inferior quality, and not more than OF ARTS AND SCIENCES : MAY 25, 1869. 117 one or two feet thick. There is a remarkable regularity in the occurrence of this bed of coal, and of the entire formation, with its lydite and other distinguishing features, over a. wide extent of country. I found it in places four hundred miles distant from each other. The thickness of this formation is about four hundred feet. c. Upper limestone. It is separated from the coal only by a thin stratum of black shale, and is similar in nature to the lower limestone. I observed its thickness for sixteen hundred feet, but never saw its upper portion. The thickness of the entire formation is thus at least three thousand four hundred feet, but I am prepared to see it proved to be several thousand feet thicker by future observation. The Kitau limestone composes entire mountain ranges by itself alone, chiefly between Kiu- kiang and Han-kau. Kingsmill mentions, as overlaying the Tung-ting sandstone of the Liu-shan to the west, a limestone formation of an estimated thickness of six thousand feet ; it is probably altogether Kitau limestone. 9th. Sanghu sandstone and conglomerate. — The deposition of the Kitau limestone ended with a considerable disturbance, as the next formation follows quite unconformably. It consists of quartzose sand- stone and quartzose conglomerate, interstratified witli thick layers of red clay, and carries a coal-bed at a place sixty miles below Han-kau. Black shales, which overlie the coal, carry some remains of plants. I was unable to establish the thickness of this formation. 10th. Commencement of the outbreaks of porphyry. — The porphyritic eruptions have probably continued in China during a long period, while sediments were contemporaneously deposited. Pumpelly was the first to direct attention to these wide-spread events. But it is only in the great granitic region of the eastern coast, between Ningpo and Hong-Kong, that porphyry itself arrives at an extraordinary develop- ment. The Chusan Islands are almost exclusively composed of quartzose porphyry and its tufas, and from there southward it appears to be only subordinate in quantity to the granite. I know it from my own observations on the island of Hong-Kong, and by inference from the observations of others, of the region between that island and Ningpo. This is the most extensive development of porphyry known in any part of the world. 11th. Deposits of porphyritic tufa, sandstones, and clays. — The porphyries themselves are little developed on the lower Yang-tse. I 118 PROCEEDINGS OF THE AMERICAN ACADEMY noticed their first appearance in certain porphyritic tufas which overlie somewhat unconformably the Sanghu sandstone. The latter appears, indeed, from its purely silicions character, to have been antecedent to any outbreak of porphyry, while the soft and impure nature of all subsequent deposits goes to show that they were the tufaceous sedi- ments of eruptions in remote regions. The visible thickness of this formation below Han-kau is about three thousand five hundred feet. It encloses a few beds of coal of subordinate value. ' Herewith ends, on the lower Yang-tse, the series of the ancient formations. The only two horizons which I consider as fairly estab- lished are Nos. 6 and 8, the Devonian and the Carboniferous. To the latter belongs the lowest coal-bed, and it is for this reason that I do not consider the question regarding the age of the Chinese coal- measures in any way as settled. It must, on the other side, however, be taken into consideration, that, from a comparison of the formations of the lower Yang-tse with those observed by Pumpelly near Peking, the coal-bearing formation appears to be but very imperfectly repre- sented in the former country. To this circumstance may have to be ascribed the scarcity of workable coal-beds in the region over which my observations extend. It is by no means improbable that the upper beds belong to a different formation not represented in that region. After a long interruption there were deposited on the lower Yang-tse a series of apparently very recent sediments, the age of which, how- ever, could in no instance be determined. a. Tatung deposits, a series of hard, cemented sediments of clay, sand, and detritus, which, by the angular shape of the fragments and their petrographical nature, bears evidence of its derivation, at every place, from the next adjoining hills. These strata, though always inclined in a certain direction at angles of from ten to fifteen degrees, do not occupy at any place a higher level than two hundred feet above the river. I did not find any fossils in them. b. Volcanic rocks. There is, north of Nan-king, a group of extinct volcanoes, whose isolated cones rise immediately out of the alluvial plain to an elevation of five hundred to seven hundred feet. Their lavas are dolerite and basalt. The craters are well preserved. c. Horizontal beds of gravel. They are probably buried deep under- neath the alluvium of the Yang-tse, as the only place where they are exhibited is at the volcanoes of Nan-kin". Each of those I visited OF ARTS AND SCIENCES: MAY 25, 1869. 119 is surrounded by a narrow ring of these beds, which are horizontally stratified and form the slopes of the volcanoes up to an altitude of four hundred feet. They probably owe this singularly isolated position to a local elevation of the volcanic district, which may have taken place loner after its vents were extinct. d. Loess, which cannot be distinguished from the European Loess. It comnoses terraces two hundred feet hia;h, and contains shells of Helix. It is sometimes separated from the underlying rocks by a layer of Laterite. e. Alluvium of the great plain. The different formations here enumerated compose, on the right and left bank of the lower Yang-tse, a series of detached and apparently disconnected mountain ranges. The complete sequence of sedimen- tary formation can only be constructed out of the various part-sections which those ranges severally afford. But no sooner are the geological columns put down on a map than the unity of the whole system of ranges is. conspicuous. They form together, so to say, one great geo- logical range, which is directed from southwest to northeast, parallel to the course of the Yang-tse from Kiu-kiang to Nan-king. There may be distinguished an axial core, consisting of the three most ancient formations and granite, while those of subsequent age ai'e distributed on both flanks of it. On the northwestern flank a somewhat regular sequence of them may be observed, commencing with those following im- mediately on the granite, and ending with the post-porphyritic deposits. It forms, between the Liu-shan and Han-kau, a belt of one hundred and fifty miles in breadth, and is cut at right angles by the Yang-tse. The hills between Chin^-kiano; and Nan-kin^ constitute a belt of similar construction, though much more narrow, on the southeastern flank. I use the term "axial core" in a purely geological sense, as the formations composing it do by no means occupy the centre of actual mountain ranges, nor do they excel by the altitude to which they rise. Though the granitic mountains near Ngan-king are about three thousand five hundred feet high, most of the hills composed of those ancient formations would but slightly attract the attention of the topographer. West of Poyang Lake, for instance, the upturned edges of the oldest sediments constitute a low plateau, and rise only in a few hills to about six hundred feet, while the more recent Tung-ting grits compose, in the immediate vicinity, the high and abrupt range of the Liu-shan. 120 PROCEEDINGS OF THE AMERICAN ACADEMY You may be surprised not to find in the above list of formations the nummulitic limestone of Si-Tungting, which I mentioned in a former letter, and which belongs properly to the system of the lower Yang-tse. The reason is, that I will refrain from maintaining my former, perhaps too positive assertion, before the fossils, which have so perfectly the structure of nummulites, shall have been examined by an authority on the subject. The structure of these shells, the occurrence, with them, of certain gastropods which, though hardly determinable (on account of their fragmentary condition), do not have the character of any that are usually found in ancient formations, the state of preservation of the fossils which permits even the color of some bivalves to be recognized, — all this is in strange contradiction with the similarity of the limestone of Si-Tungting to some of the most ancient limestone strata on the Yang-tse. The occurrence of encrinites, too, in the former, — a fact which I think I forgot to mention in my former letter, — is not in accord- ance with the Eocene age of the limestone in question. I never found on the lower Yang-tse any fossils resembling those of Si-Tungting. I am endeavoring to collect data for the geological history of eastern China in recent periods. There is, among others, one very interest- ing feature in the valley of the lower Yang-tse, which bears on that subject. You would, in ascending the river by steamer, observe that it is, in the greater part of its course below Han-kau, accompanied by terraces, which rise* abruptly out of the alluvial plain to an altitude of from sixty to two hundred feet above it, now approaching the river closely, now remaining at a distance of several miles from its banks, sometimes skirting the foot of a mountain range,' then again forming an extensive table-land. You might consider them, from analogy, to correspond to the so-called diluvial terraces so common in the valleys of great rivers. It is a striking fact, that, on examination, the terraces of the Yang-tse prove to be quite different in nature, consisting as they do mostly of the upturned edges of ancient formations, not of one of them, but of all, excepting granite, porphyry, and the limestones. The strata are inclined at various angles, and their ends abraded in nearly hori- zontal planes. On Poyang Lake, the terraces consist of the two most ancient formations ( 1 and 2) ; below Han-kau, for sixty miles, they are composed of the soft sandstones and clays No. 11, while near Ngan-king they are built up of Tatung sediments. At Nan-king, finally, the river is accompanied for about fifty miles, on either side, by terraces consist- ing of the Nan-king sandstones and conglomerates, which are here in- OF ARTS AND SCIENCES : JUNE 8, 1869. 121 clined at an angle of forty-five degrees. This phenomenon appears to mark at least one epoch when the sea was gradually encroaching on the land, and, though probably not rising high above its present level, contributing to effect a remarkable change in the configuration of the country. I refrain for the present from any further remarks on recent changes. Only this I may still mention, that I did not discover any sisrns of former glacial action or drift. It is much to be regretted that there is not more knowledge of geol- ogy to be found among the numerous travellers in China ; if there were, our knowledge of the geology of this vast Empire might be rapidly en- larged. I am sorry to say, that, with the exception of Mr. Kingsmill, I have not met one who has any knowledge of this science. 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P 03 « 3 3P S « CO "^ cj L ^ s -« o3 u 03 O op O Ph ft 3 cj a .1 g XI cj 3 3 p: 0J -JH co 3 -§ c2 ; -i p 6 3 ■• u 'H » C, o c o CO 3 ca — 03 a c CJ Oh CJ . a " si: co cp 3 3 CJ a 03 3 CJ a 3 (a o ftflfl 8 cj •a > el 3 .-H OJ 03 co O 03 Eh h-» i o Oh Oh o CJ 'a 3 03 o t3 03 T3 CJ Oh O _3 "3 > 3 OF ARTS AND SCIENCES: JANUARY 26, 1870. 153 < £ :~ £ -i S S 8 S H a g> s « a a ^j a ft" c O r£ a C b i* A « . 2 ■* s. ■ t^ «s~ CO (- 6 00 w « ~ '.§i s rf • s S | « ' m 9 a * oo o 3 . ® a> 3 p y g 3 • # * S. ° S ° 5 Ph rt P; 5 P M -9 . ^ . a • *a CJD IS 10 - « 5 a> <- *; et fS^JiS 8 . 5 • ** • o o £ ■ . §•1 I "° ■ -1 s 5 s .a -u is ■ - a 3 <" p. 2 "p . «n . 2 .oso-^^.o; ft £ 03 -P . D. -E S ^ 3 c3 « o '3 oj 2 o -S E £ .5 £ p '-J3 . ■- x. -1 -° § 3 e "G ° ' © a 3 3 s. -a * -Si s* s "? » • -a g !■•§.§ s .s * .2 ° g. E . | I "* • « g g -3 J g g ^ ~ I « •- a • -i t | | -s '5 2;.- o - . '3 'S3 •- ? 25 ^ . ,gj « § 8 g '■§ g. 1 -s «s g | J -i ■ g • I s II g | • g ..$ fX ^>-v gj x ^ r5 i— " ^ £ "5 01 e S 3 p a a r^i . © . ;3 .5 3 T cj . cj J- fi .a . =3 s" g '. ^ 5 o3 lli.l 1 "s ii-a"- 1 3 i « P « s «> " .£ fltTXiprr! ■ . " P <« r- — «s I «? na 00 t! ° C .5 r3 ^ s ^ ; "« 3 its o3Pa O ~ "p tS ^ I ^3 S »^s a poo > -" P P -g 03 -S .5 3 3 03 | 3 ^S^ S EOO ■5 "5 -« « P 3 S" O P S ° P "=_S° 3 .§> i 3 § ! » -2 3 .5 H 3 P <-" +3 3 53 p— ■— cJ g 3 ^03^ « EnOO §§J§lsg §> « 5 as u c > 3 B ps, (ii a _g oq o •< "3 !p VOL. VIII. 20 154 PROCEEDINGS OF THE AMERICAN ACADEMY § 1. Alata, Benth. Achenium trialatum. Embryo rectus seu rec- tiusculus, axilis. Flos basi haud productus, nempe perigoniura 6-partiturn basi lata ipsa cum pedicello articulatum. — Perennes seu biennes, caulibus scapiformibus 1 - 3-pedalibus, involucris ssepissime longius pedunculatis laxe cymoso-paniculatis, foliis radi- calibus spatbulatis seu lanceolati-% pube laxa. * Flores pi. m. pubescentes, nempe perigonio extus adpresse pilosulo, filamentis basi et ovario superne parceque birsutis. Panicula floribunda. Achenium supra medium trialatum. 1. E. hieracifolium, Benth. in DC. 1. c. Planta Wrightiana, cine- reo-pubescens ; foliis radicalibus subtus subtomentosis supra costaque subtus laxe sericeo-villosis ; floribus flavis. — Guadalupe Mountains, E. of El Paso, Texas, Wright. Var. /3. hemipterum. E. hemipterum, Torr. in herbariis. E. hiera- cifolium, Torr. Bot. Mex. Bound, p. 175, pro parte. Humilius ; caule tenuiore magis foliato ; pube tantum villosa parca; floribus ut videtur roseis. — Hillsides of the Rio Grande, Parry. The foliage of this is so different in pubescence from the type of the species (being just as in the next) that with other specimens it may prove to be a distinct species ; but the flowers are the same except (apparently) in color. * * Flores glaberrimi. Achenium a fere basi ad apicem alatum. 2. E. alatum, Torr. (Sitgreaves, Rep. t. 8), Benth. 1. c. Elatum, floribundum ; pube laxa hirsuto-villosa nunc parca vel aitate decidua ; panicula decomposita; involucre 5-dentato; floribus parvis flavescen- tibus ; alis fructus latiusculis tenuibus. — From the Platte to W. Texas and New Mexico, by various collectors. — Var. glabriusculum, Torr. Bot. Whippl. (on the upper Canadian, Bigelow), the most glabrate form, has only a few scattered hairs on the leaves, and the involucres are wholly glabrous. 3. E. atrorubens, Engelm. PI. Wish p. 24. Foliis radicalibus vil- loso-pubescentibus basi in petiolum longe alatum attenuatis; scapo aphyllo ? glabrato inferne pi. m. fistuloso-inflato in cymam laxam dicho- tomo-divisis ; involucris paucis longe pedunculatis brevi-campanulatis 5-7-dentatis ; perigonio rubente ; alis fructus angustis incrassatis. — Cosihuiriachi, Mexico (Chihuahua), Wislizenus. § 2. Eriantha, Benth. excl. sp. Achenium exalatum, ut in omnibus subsequentibus. Embryo rectus, axilis, radicula cotyledonibus latis breviore. Flos extus villosus vel sericeus, basi subito quasi in OF ARTS AND SCIENCES: JANUARY 26, 1870. 155 stipitera cum pedicello articulatum longe produdtus. Perennia, caulibus foliatis famosis, foliis aut alternis aut verticillatis subtus (nunc fulvo- srepius cano-) tomentosis, involucris solitariis plerum- que sessilibus. * Folia angusta (lanceolata seu oblongo-linearia), inferiora in petio- lum attenuata, omnia cum rami's inferioribus paniculae apertae nudse alterna. Involucra subdissita, inferiora pi. m. pedunculata. Peri- gonia herbacea, segmentis eonsimilibus. 4. E. LONGiFOLiusi, Nutt. E. Texanum, Scheele in LinnaBa. — Ar- kansas. Texas, and rare in Florida. Stems 2-4 feet higb from a thickened root. * * Folia caulina 3 - 5-natim verticillata, ovalia seu oblonga : cyma dicbotoma, foliata, involucris in dichotomiis vel secus ramos sessili- bus multifloris. Perigonia subpetaloidea, alba, segmentis 3 interi- oribus sa^pius demum longioribus. 5. E. tomentosuji, Michx. Fl. 1, p. 246, t, 24. Caulibus 2-3- pedalibus foliosis ; foliis caulinis sessilibus obovatis seu ovalibus subtus toraento sospissime fulvo vel rufo ; perigonii segmentis late ovatis extus tomentosis margine lato albo, tubo pedicelliformi elongate — Pine bar- rens from South Carolina to Florida ; the original species, and, with the rare exception of the foregoing, the only one met with east of the Mississippi. 6. E. tjndulatum, Benth. in DC. 1. c. p. 7. Mexico, Nee, Galeotti. Known only from imperfect specimens. Apparently dwarf and fruti- culose, with much smaller flowers than in the foregoing ; the leaves undulate-crisped. 7. E. Jamesii, Benth. 1. c. E. sericeum, Torr., non Pursh. Caulibus 5 - 12-pollicaribus e caudicibus lignescentibus caespitosis parce foliatis; foliis caulinis spathulatis oblongisve subsessilibus, tomento albido ; in- volucri extus laxe villoso-sericei segmentis obovatis vel spathulatis. — From the Platte to W. Texas and New Mexico. § 3. Umbellata, Benth., excl. sp. pluribus. Flos (ut in § 2) in- ferne in basim angustam sa3pi>sime quasi in stij)item cum pedicello articulatum productus ! Involucra multiflora, nunc solitaria (raro pauca in capitulum), nunc in umbellam simplicem vel compositam pedunculum ramosve floriferos terminantes, collecta. Ovarium inferne glabrum, superne plerumque parce hirsutum. Embryo curvulus vel fere rectus ; radicula breviuscula seu longiuscula, 156 PROCEEDINGS OP THE AMERICAN ACADEMY cotyledonibus pi. m. excentricis longiore vel sequilonga. — Herbre perennes, nunc'suffrutescentes, srepissime humiles, foliis plerum- que subtus prtesertira albo-lanatis, raro glabratre vel glabra ; flori- bus fere semper flavis vel luteolis nuuc purpureo tinctis. * Perigonium extus villosum seu pubescens. h— Involucra repando-5 - 7-dentata, campamrlata. Umbella srcpius pluriradiata, foliis involucrantibus subtensa. Embryo rectus, pa- rum «*xcentrieus. 8. E. flavum, Nutt. in Fraser, Cat. Pube sericeo-lanata canescens vel incanum ; pedunculis scapiformibus (3 - 6-pollicaribus) e caudice crasso multicipiti ; foliis spatbulatis seu lanceolato-oblongis supra tar- dius glabratis, radicalibus in caudice confertis, involucrantibus 2 — 8 radios totidem subrequantibus ; perigoniis aureis extus sericeo-villosis basi infundibuliformi substipitatim producta; ovario apice hirsuto. E. sericeum, Pursh. — Variat : 1. Foliis crassioribus lana subtus densiore. E. crassifolium, Bentb. Eriog. ; Hook. Fl. Bor.-Am. t. 176; tbe in- volucre represented too deeply tootbed. 2. Foliis subovatis crassis su- pra glabratis subtus lana ferruginea. Crater Pass, Newberry. 3. Na- num ; umbella in capitulum ex involucris 3-4 sessilibus nunc ad involucrum solitarium reducta. E. aureum, Nutt. in herb. 4. Vege- tius, subpedale, umbella bis 3 - 4-radiata, radiis valde inrequalibus. — "W. Kansas to Saskatchawan, Rocky Mountains, &c. Flowers three lines long. The embryo is straight, but with the cotyledons moderately ex- centric ; these are nearly as broad as the albumen (as in all Umbellata), and shorter than the radicle, which is not perceptibly inflexed at the junction. -l— -i— Involucra lobata, srepius in pedunculo solitaria, nuda, nunc 2 — 3 in umbellam imperfectam 2 - 3-radiatam vel capitulum collecta. Embryo ubi observatus incurvo-excentricus. ++ Microphyllum : involucrum turbinatum, sublobatum, lobis den- tibusve latis vix patentibus. 9. E. thymoides, Benth. in DC. Suffruticosum, ca^spitoso-ramosis- simum (spithama3um), cinereo-tomentosum ; ramis floridis inferne folio- sissimis ; pedunculo infra medium verticillo foliorum instructo ; fo- liis (lin. 2-3 longis) lineari- seu oblongo-spathulatis margine revolutis ; perigonio basi cyathiformi attenuata pilis creberrimis reflexis villosissi- mo. — N. branch of the Columbia, Wilkes's Ex. Expedition. Simcoe Hills in the same region, Dr. Lyall. A most distinct species: the flowers apparently pale yellow with some tinge of purple. OF ARTS AND SCIENCES : JANUARY 26, 1870. 157 ++++ Folia majora : involucrum profunde 6 - 8-fklum, lobis angus- tis patentibus demum reflexis. ■ 10. E. cespitosum, Nutt. in Jour. Acad. Pliilad. 7, p. 50, t. 8. Pulvinato-crespitosum, foliis in ram is humif'usis caudieium plerumque rosulatis spathulatis undique cano-touientosis marginibus pi. m. revolutis (lin. 3-6 longis) ; scapo aphyllo 1 - 3-pollicari ; involucro solitario ; perigoniis luteis nunc purpurea tinctis extus sericeo-villosiuseulis basi breviter stipitato-contractis, segmentis ovalibus, interioribus basi cum filamentis pilis longis pi. m. villosis ; ovario versus apicem parce hirsu- tulo. E. andinum, Nutt. PL Gamb. p. 160, forma minore, ovario in pi. subraasculis prorsus glabro. — Rocky Mountains, Nuttall, Fremont, &c. Mountains of Nevada, at 4,000 to 6,500 feet, Bloomer, Stretch, Torrey, S. Watson in C. King's Expedition. Flower two, or in age three lines long, including the stipitiform base. 11. E. Douglasii, Benth. in DC. Dense cano-lanatum ; caudicibus suffrutescentibus crespitoso-ramosissimis depressis folia rosulata spa- thulata basi in petiolum attenuata proferentibus ; pedunculo simplicissi- mo scapiformi medio verticillo unico foliorum instructo involucro soli- tario ebracteato majusculo vel 2-3-capitatis terminato ; perigoniis basi cyathiformi breviter angustata extus villosulis, segmentis lato-obova- tis ; filamentis infra medium phimosis. E. ovaMJblium, Benth. Eriog., non Nutt. — Blue Mountains of Oregon, Douglas or Gairdner. Not since found : the specimens fructiferous, or nearly so ; the color of the fresh flowers unknown. The scarious-persistent perigonia are four lines long, and numerous, forming a globose head two thirds of an inch in diameter. Embryo inflexed, the cotyledons accumbent on the radicle. 12. E. SPHiEROCEPHALUM, Dougl. in Benth. Eriog. Canescenti- tomentosum ; caulibus e basi suffruticosa adsurgentibus vel erectis ramo- sis foliosis ; foliis spathulatis angusto-oblongisve basi angustatis verti- cillatis verticillato-fasciculatis paucisve alternis, pagina superiore nunc glabrescente ; pedunculis brevibus nunc subumbellatis vel dichotomis ; perigonis flavis, basi stipitiformi pedicello subrequilongo, segmentis ob- longo-obovatis vel interioribus spathulatis ; filamentis basi villosis. — Variat: 1. Subpedale, foliosum ; foliis plerumque angustis margine nunc revolutis, lana laxiuscula ; perigoniis extus subvillosis. Oregon and Montana, Douglas, &c. 2. Humilius ; perigoniis tenuiter pubes- centibus. Simcoe Valley, Washington Territory, Dr. Lyall. 3. De- pressum, angustifolium. E. geniculatam, Nutt. PL Gamb. W. slope 158 PROCEEDINGS OF THE AMERICAN ACADEMY of Rocky Mountains, Nuttall. 4. Latifolium, nanum, umbella saepiu3 triradiata, radiis bi*evibus. E. ellipticnm /3. megacephalum, Nutt. 1. c. Rocky Mountains, Nuttall. 5. Brevifolium, tomento tenui appressisi- mo incanum ; caulibus simplicioribus multo minus foliatis ; perigoniis extus tenuiter pubescentibus. California, Rev. Mr. Fitch, in herb. Torr. Nevada, Stretch, S. Watson. * * Perigonium extus glaberrimurn, basi stipitiformi conspicua. •k- Tota planta glaberrima praeter filamenta basi villosa : ovarium etiam glaberrimurn. Flores majores in involucro 7 - 8-fido per- multi. 13. E. Torreyanum, Gray, Mss. Spithamneum ad subpedalem; foliis obovato-spathulatis crassiusculis fere aveniis plerisque in caudice confertis ; caulibus floridis pedunculisve subvalidis inferne nudis vel medio unifoliatis apice umbellam subsimplicem 3 - 4-radiatam vei'ticillo foliorum subtensam gerentibus ; floribus aureis pro genere magnis (lin. 4-4^ longis), basi stipitiformi brevi ; embryonis rectiusculi cotyledoni- bus orbiculatis radicular subrequilongis. — California, on a high mountain of the Sierra Nevada near Donner's Pass, Torrey, no. 443. Rays of the umbel from one to nearly two inches in length, subtended by a whorl of leaves like the lower leaves but smaller, and sometimes accom- panied by one or two solitary and naked short-pedicelled flowers ! The lateral rays bear an involucriform whorl of smaller bracts towards their summit, from which sometimes proceeds a short secondary ray. The very numerous flowers form a globular head which in fruit is nearly an. inch in diameter: the perigonium scarious-persistent, its segments spatulate-obovate, equal, at the base with a strong costa running down to the stipitiform portion, which is only half a line long. h— -i— Herbre lanata?, tomentosa? vel araneosas, saltern juniores et pagina infera foliorum, nunc demum glabratre : filamenta inferne villosa : ovarium versus apicem prasertim ad angulos pi. m. hirsu- tulum. Flores mediocres, in involucro (sajpius profunde 5-9-fido lobis patentibus mox reflexis) numerosi, basi stipitiformi in pleris elongata. (Species limitatione difficiles.) ++ Caules floridi adsurgentes plus minus foliati et ramosi. 14. E. polyanthum, Benth. in DC. p. 12. Ultrapedale, laxe ramo- sum ; foliis plerisque verticillatis vel inferioribus verticillato-fascicu- latis ovatis oblongisve nunc sublanceolatis acutis subtus prresertim albolanatis; pedunculis aut solitariis vagis aut 2-5 umbellatis; basi OF ARTS AND SCIENCES : JANUARY 26, 1870. 159 stipitiformi floris aurei segmentis diraidio breviore ; embryone recto, cotyledonibus oblongo-ovalibus radicula parum brevioribus. — Cali- fornia, from various collections, on the Sacramento, &c. Var. bahijEFORME. Ramosissimum, subpedale ; foliis parvulis (semi-polliearibus) sajpius utrinque dense incanis ; floribus minoribus in involucro minus numerosis. — Dry slopes of San Carlos, New Idria, Brewer. Owens Valley, Dr. Horn. This seems to pass on one hand into E. umbellatum, on the other into E. heracleoides. ++ ++ Caules floridi sen pedunculi scapiformes, e caudicibus caespi- tosis laxioribus humifusis vel decumbentibus orti, simplici, aphylli seu verticillo unico rarius duo foliorum instruct!, umbella perfecta simplici vel composita rariusve ad involucrum solitarium reducta terminati. Sp. priores majores. 15. E. compositum, Dougl. in Beuth. Eriog. t. 17, f. 10. Saepius validum ; foliis omnibus e caudice crasso oblongo-ovutis cordatisque longe petiolatis subtus dense cano-tomentosis ; scapo nudo fistuloso (sub-sesquipedali) umbellam compositam pleniradiatam verticillo brac- tearum linearium vel latiorum stipatam gerente ; involucro sub-5-fido ; perigonii ut videtur albidi segmentis stipite 2 - 3-plo longioribus, ex- terioribus post anthesin crispulis. — Wa-hington Territory to the north- ern part of California (Bolander). Bentham has not described and we have not seen the embryo, but from the figure it seems to resemble that of E. heracleoides. The var. leianthum, Benth., is a state with glabrous or glabrate involucres, and passes into the ordinary form. 16. E. heracleoides, Nutt. in Jour. Acad. Philad. 7, p. 49. Gra- cilius ; ramis sterilibus decumbentibus subcrespitosis apice fascieulato- foliatis, floridis pedunculisve nunc nudis sa?pissime medio verticillo folio- rum instructis umbellam simplicem vel compositam plerumque involu- crato-bracteatam gerentibus ; foliis spathulato-oblongis vel oblanceolatis subtus vel utrinque albo-lanatis ; involucro 6-8-fido; perigonii palli- de lutei segmentis stipite gracillimo vix longioribus; embryonis cotyle- douibus orbiculatis radicular incurvae aequilongis. — Rocky Mountains through the interior of Oregon, Nevada, &c. The typical form is from 1 \ to 2 feet high, with leaves becoming glabrate above, and a full, many- rayed compound umbel. E. gyrophyllum, Nutt. PI. Garnb. p. 163, is a dwarf form. Var. minus, Benth. in DC, is similar or rather smaller, sometimes with leaves only subtending the umbel, and passing into Var. angustifolium, (E. angustifolium, Nutt. PL Gamb. 1. c. E. umbellatum, Benth. Eriog. p. 410, t. 18, non Torr.) : foliis sublineari- 160 PROCEEDINGS OF THE AMERICAN ACADEMY bus ; umbella in macrioribus simplici, in vegetioribus (TV. Kootenay, &c. Lyall) iterum iterumque divisa. — Flowers smaller than in E. um- bellatum and pale, with a proportionally longer stipitiform base. 17. E. umbellatum, Torr. in Ann. Lye. 2, p. 241, & in Sitgreaves, Rep. t. 12 (mala quoad fl. et embryo). Spithamaeum ad pedalem ; ra- mis sterilibus decumberitibus vel repentibus saape stoloniformibus laxe crespitosis apice fasciculato-foliosis ; foliis obovato-spathulatis ovalibus- que in petiolum angustatis subtus albo-lanatis ; pedunculis scapiformibus prater bracteas foliave umbellam siraplicem raro subcompositam invo- lucrantia aphyllis ; involucro profunde 6 - 8-fido ; perigonii flavi nunc albi segmentis stipite gracili 2 - 3-plo longioribus ; embryonis cotyle- donibus fere orbiculatis radicula vix incurva parum brevioribus. — Plains of Nebraska to Oregon, Nevada, and the borders of California. E. stellatum, Benth. Eriog. (probably included a small form of the preceding), Hook. Fl. Bor.-Am. t. 177, a northwestern form, repre- sented with the scapes all unifoliate ; but this leaf is extremely excep- tional, and the whorl of leaves at the middle mentioned by Bentham in DC. Prodr. we have not met with. Var. majus, Benth. in DC, is merely a large state. E. ellipticum, Nutt. PI. Gamb., is the same, with the umbel compound, which is uncommon. And there are three or four other unpublished Nuttallian names for the species. Green and glabrate or almost glabrous forms have been collected by Prof. Brewer, S. Watson, and others. The most reduced and diminutive form is Var. monocephalum (E. Tolmieanum, Hook. Fl. Bor.-Am. 2, p. 134) : pusillum, casspitoso-depressum ; foliis supra vel utrinque glabra- tis, lamina £ - £-pollicari ; scapo \ - 3-pollicari gracili apice involu- cra 2-4 capitata saspius 1 - 3-bracteata vel unicum plerumque nu- dum majus gcrente ; floribus pi. m. minoribus. — Oregon on the Walla- Walla among Wormwood, Tolmie. Humboldt and Clover Mountains, Nevada, alt. 9-10,500 feet, S. Watson. Sonora Pass, California, 10,000 feet, Brewer. Uintah Mountains, Utah, 9-10,000 feet, S. Watson. Some forms have green and almost wholly glabrous leaves. -H- h — h- Herbse lana tenui densa incanas ; scapi, e caudicibus ramisve sterilibus crespitosis ut in praecedentibus orti, prorsus aphylli, gra- cillimi, umbellam simplicem parvi-involucranti-bracteatam gerentes, involucro centrali semper sessili ! Flores minores et pauciores in involucro 5 - 7-dentato, basi breviter stipitiformi, subdioici, umbella mascula contracta capitata. Filarnenta basi et ovarium apice saapius pubescentia. OF ARTS AND SCIENCES : JANUARY 26, 1870. 161 18. E. marifoliuh, n. sp. Modo E. umbellati ramis sterilibus de- pressis gracilibus substoloniformibus laxe casspitosis ; foliis parvis ovatis utrinque albo-toraentosis vel supra mox glabratis basi rotundatis aut abrupte in petiolum laminam (3-5 lin. longain) srepius excedentem an- gustatis ; umbella 3 - 6-radiata nunc capituliformi in scapo nudo; in- volucris parvis; floribus luteis (interdum roseo tinctis) ; semine lanceo- lato ; embryone recto axili, cotyledonibus obovato-oblongis radicula longioribus! — California, Lobb. no. 192 in herb. Hook. Mount Shasta, 7-9,000 feet, Brewer: involucres apparently with only male flowers, more or less capitate on a scape only an inch or two long. High mountain near Donner's Pass, Sierra Nevada, Torrey : apparently male flowers in contracted umbels on scapes from two to five inches high ; and fruiting plants with scapes eight or ten inches high, bearing an umbel of five or six long rays besides the sessile central involucre. The involucres are only a„line or a line and a half long; the perigonia of about the same length, or those with mature fruit accrescent, espe- cially the inner ones, and as much as two and a half lines long. 19. E. incanum, n. sp. Densius caaspitosum ; caudicibus crassioribus; foliis creberrimis oblongis spathulatisve utrincpie cano-tomentosis in pe- tiolum lamina (semipollicari) haud longiorem angustatis ; scapo nudo ; umbella prajter involucrum centrale sessile 5 - 7-radiata nunc capitu- liformi rariusve ad involucrum solitarium reducta; floribus flavis; semine ovato acuminato ; embryone rectiusculo, cotyledonibus ovali- rotundis parura excentricis radicular aequilongis. — California, in the Sierra Nevada, Brewer (on the Tuolumne River, alt. 8-11,000 feet), Torrey, Bolander. Much more densely casspitose than the foregoing; the scapes from two to six inches high and less slender ; the flowers simi- lar but bright yellow, about a line long, but the accrescent fructiferous perigonium in Bolander's fine specimens from two and a half to three lines long. Involucre with five to seven short and broad erect teeth. § 4. Psetjdo-Umbellata. Flos basi abrupte constricta brevissima cum pedicello articulatus. Involucra umbellata, rarissime soli- taria, multiflora: umbella bracteis foliaceis involucrantibus sub- tensa, scapum nudum (interdum unifoliatum) terminans. Perigo- nium 6-partitum, albidum seu luteolum, nee flavum ; segmentis obovatis fere conformibus. Ovarium totum vel basi glabrum. Embryo uti notus praecedentium. — Herbce perennes, casspitosae, humiles, floribus ut videtur luteolis seu albidis extus aut laxe pilosis aut glabris. VOL. VIII. 21 162 PROCEEDINGS OP THE AMERICAN ACADEMY * Ovarium supra medium laxe villosum. 20. E. pyrol^folium, Hook, in Murray, Bot. Exped. Oregon, & Kew Jour. Bot. 5, p. 395, t. 10. Glabratum ; foliis in caudice longe fusiformi conf'ertis obovatis seu lato-spathulatis petiolatis coriaceis ; bracteis binis umbellam parvam e radiis 3-5 brevissimis stipantibus ; involucro campanulato villoso ; perigoniis albidis ? extus basim versus parce villosis ; filamentis basi tantum hirsutulis. — Mount Shasta, Cali- fornia, Mr. Jeffrey (herb. Hook.). Scapes a span high, bearing traces of loose villous hairs, which are more decided on the petioles. These lead us to infer, the flowers being essentially alike, that the following is a downy form of the same species. Var. coryph^eum: nanum, scapo petiolisque villoso-lanatis ; foliis ovatis (semipollicaribus) longe petiolatis albido-tomentosis, pagina su- periori demum glabrata, involucris in umbella 1-3. — Summit of the Cascade Mountains, about lat. 49° on the east side, at the height of 7,500 feet, Lyall. Flowers fully two lines long, apparently white or flesh-colored. * * Ovarium glaberrimum. 21. E. androsaceum, Benth. in DC. 1. c. Pumilum ; foliis in cau- dicibus dense casspitosis confertis oblanceolatis spathulatisve in petio- lum attenuatis supra glabratis subtus albo-lanatis ; scapo 2 - 3-pollicari rarius unifoliato ; umbella 4-7-radiata simplici nunc subcapitata bracteis verticillatis linearibus stipata ; involucris oblongo-campanulatis 5-dentatis ; perigonio extus basi pubescente ; filamentis fere glabris ; embryonis radicula in cotyledonibus brevioribus orbiculatis valde ex- centricis accumbenti-inflexa. E. ccespitosum, Benth. Eriog. ; Hook. Fl. Bor.-Am., non Nutt. — Alpine region of the northern Rocky Moun- tains, Drummond, Bourgeau. Perigonium two, or in fruit nearly three, lines long, the inner segments then more lengthened than the outer. 22. E. Lobbii, n. sp. Humile, primum tomento arachnoideo permolli (proeter flores) incanum ; foliis in caudice crasso confertis subrotundis in petiolum saapius longiorem subito contractis crassiusculis, pagina su- periori nunc denudata ; scapo spithamreo inferne rarius unifoliato ; um- bella subcomposita densa bracteis verticillatis fbliaceis obovatis seu lanceolatis stipata; involucris campanulatis 5-7-fidis; perigonio glaberrimo ; filamentis inferne villosis ; embryonis radicula in cotyle- donibus obovato-rotundis excentricis parum brevioribus subinflexa. — California, Lobb in herb. Hook. no. 190. High mountain near Don- OF ARTS AND SCIENCES: JANUARY 26, 1870. 163 ner's Pass in the Sierra Nevada, Torrey. Porphyritic hills near Vir- ginia City, Nevada, Mr. Stretch in herb. Torr. Leaves 1 to nearly 2 inches in diameter; scape commonly stout. Involucre about half an inch, and the flowers at length three lines long. — Upon Silver Mountain in the Sierra Nevada, at the height of 11,000 feet, Prof. Brewer col- lected a smaller form, viz. : — Var. minus : foliis tenuioribus involucrisque dimidio minoribus ; um- bella parvula condensata. § 5. Lachnogtna. Flos basi ipsa lata cum pedicello articulatus : perigonium extus lanatum, 6-partitum, segmentis oblongis aequali- bus. Ovarium lana longa implexa tomentissimum ! Filamenta basi tantum pilosa. Involucra pauca in capitulum aut in capitu- lis paucis subcymosis congesta, nunc solitaria, brevia, 3 - 5-den- tata. Embryo (in E. lachnogyno) sect, prascedentis. — Herbee perennes cajspitosas, incanre, foliis in caudice multicipiti confertissi- mis angustis, scapo nudo vel fere nullo, floribus parvis flavis. 23. E. acaule, Nutt. PI. Gamb. Pulvinato-casspitosuin, albo-tomen- tosum ; foliis oblongis vel sublinearibus margine revolutis sessilibus ; capitulo ex involucris 1-5 fere sessilibus intra folia suprema sessili nunc fructifero breviter exserte pedunculato ; perigoniis extus tomen- tulosis. — Summit of the Rocky Mountains, between Colorado and Utah, Nuttall. Dry sandy ridge near head of Holmes's Creek, Utah? at G,000 feet, S. Watson in C. King's Expedition. Leaves barely two or three lines long, spreading from the sheathing bases which are im- bricated on the branches of the caudex. Flower hardly two lines long. 24. E. lachxogtnum, Torr. in DC. & Bot. Whipp. p. 76, t. 19. Caudicibus brevissimis in radice fusiformi confertissimis ; foliis lan- ceolatis seu lanceolato-oblongis acutis petiolatis margine pi. m. revolutis supra sericeis subtus cano-tomentosis ; scapo elongato nudo oligo- cephalo ; perigoniis extus sericeo-lanatis intus flavis. — Mountains of the southern part of Colorado and the adjacent parts of New Mexico, Fendler, Gordon, Bigelow, Newberry. Leaves an inch long besides the slender petiole. Scape slender, a span to near a foot high, more or less cymosely branched at the summit, or in depauperate specimens simple, the branches bearing a loose capitulum of a few involucres, or a solitary involucre sessile in the fork. Flowers a line and a half long, some of them subtended by an ovate or lanceolate firm bract as well as a pair of filiform bractlets, as described and figured by Dr. Torrey. In the letter- 164 PROCEEDINGS OF THE AMERICAN ACADEMY press it is stated that the bract is not represented in the figure, but it is. Bentham describes the embryo as straight, on the authority of a sketch by Dr. Torrey ; who, however, from later specimens collected by Dr. Bigelow, has upon his plate well represented the embryo (as strongly excentric), but makes no reference to it in the letter-press. — This and the preceding species are brought together from their resem- blance in structure and in the very woolly ovary, rather than in habit. § 6. Heterosepala. (Gen. Eucycla, Nutt.) Flos basi ipsa haud producta cum pedicello articulatus : perigonium glaberrimum, 6- partitum, omnino petaloideum, post anthesin tenuiter scarioso- marcescens ; segmentis tunc biseriatis maxime disparibus, exteri- oribus rotundatis magis demum auctis basi cordulatis, auriculis usque ad vel ultra articulum extensis ; interioribus angustis spa- thulatis emarginatis mox paullo longioribus conniventi-erectis invo- lutisque, singulis basi unguiformi stamina 3 gerentibus. Involu- cra (5 — 8-dentata) capitata vel umbellato-eymosa in scapo pror- sus aphyllo simplici. Ovarium glabrum. Embryo incurvus, radicula adscendente cotyledonibus orbicularis accumbentibus longe superante. — Herbre perennes, caespitoso-acaulescentes, cano- lanatae, foliis ovalibus vel subrotundis petiolatis in ramis brevissimis caudicis multicipitis confertis, bracteis minimis seu evanidis. 25. E. proliferum, n. sp. Scapo (spithamreo ad pedalem) umbel- lam prolifero-compositam gerentibus, radiis primariis 2 — 6, sequentibus binis nunc solitariis, cum involucro alari semper sessili ; perigonii rosei segmentis exterioribus orbiculari-obovatis ovalibusque post anthesin vix aut leviter cordulatis. — Idaho Mountains (Prof. 0. Marcy, Prof. Swallow) to N. Fork of the Columbia, Wilkes's Expedition (the plant had been doubtfully referred to E. oblong if olium), Weenass Valley and Walla- Walla, Lyall. Foliage nearly as in the next ; but the inflorescence cymose-umbellate, usually lax; a central sessile involucre in the primary umbel and in the successive forks, not rarely secund by the suppression of one of the pair of secondary and tertiary rays. Involucres and perigonia after flowering hardly exceeding a line and a half in length. Filaments, as in the next, villous-pubescent below. 26. E. ovalifolium, Nutt. in Jour. Acad. Philad. 7, p. 50, t. 8. Scapo (3 -9-pollicari) capitulo simplici (rarissime prolifero dicephalo) ex involucris paucis (3-8) arete sessilibus terminato ; perigonio aut flavo aut roseo-purpureo, fructifero albido, segmentis exterioribus latis- OF ARTS AND SCIENCES : JANUARY 26, 1870. 165 sime ovalibus basi srcpius sinu profundiori cordata. Eucycla ovalifolia & E. purpurea, Nutt. PI. Gamb. p. 166. — Rocky Mountains of Colorado through Utah to Nevada and the borders of California. Varies with yellow flowers (E. ovalifolium, Nutt.) not rarely tinged with purple, to rose or rose-purple (E. purpureum, Benth. in DC, &c.) ; and slender forms with smaller flowers are var. tennius, Benth. 1. c. (E. elongatum, Nutt. herb., changed to tenellum, and by Gambell to E. Nuttallii, PI. Gamb. 1. e.*) A specimen from Clamet River, of Wilkes's Expedition, has two heads. The flowers and the plant vary considerably in size. § 7. Capitata. Flos basi lata vel brevissime angustata (baud pro- ducta) ipsa cum pedicello articulatus : segmenta perigonii (gla- bra raro lanulosi) consimilia subasqualia. Involucra (pauca vel plura) in capitulum globosum ssepius nudum sessilia: capitula soli- taria vel pauca subumbellata scapum aphyllum vel pedunculum scapiformem superantia. Ovarium glabrum. Embryo ubi notus fere sect, prascedentis. Herbaa perennes, pi. m. albo-lanataa. * Caespitoso-acaulescentes, pumilas, monocephalae ; floribus in invo- lucris paucis 5 — 7-dentatis vix numerosis. Bracteolae parum barbellatas. 27. E. Kingii, n. sp. Laxe albo-lanatum ; foliis in caudice multi- cipiti confertis spathulatis obovatis nunc rotundatis (petiolo aut longo aut brevi) ; scapo tenui ; involucris in capitulo 6-9 turbinato-campanu- latis profundius 6 - 7-dentatis tenui-membranaceis ; perigonio glaber- rimo luteo vel roseo-purpureo, segmentis obovato-subcuneatis omnibus emarginatis ; filamentis fere glabris. — Summit of E. Humboldt Moun- tains, Star Peak, and Clover Mountain, Nevada, alt. 9-11,000 feeb Sereno Watson in Clarence King's Expedition, July - August, 1868. Leaves exclusive of the petiole about half an inch long. Flowers a line and a half in length. Embryo with a slender radicle, its base ascending and accumbent on the orbicular cotyledons. Var. laxifolium. Elatius ; caudice ramis gracilioribus ; foliis parcioribus sublanceolatis ; floribus in sicco aureis. — Parley's Park * Nuttall describes E. Nuttallii as having the " segments of the perianth oblong and not very unequal" ; but in those of his own specimens which have any flowers, as in his " E. polyceps," Mss., which he evidently put with it, the perigonium is just that of E. purpureum. So that he should not have left it in Eriogonum when he formed of the above his genus Eucycla. It might be supposed that Nuttall had our next species (E. Kingii) in view, but there is no trace of it in his own herbarium, nor among the specimens he contributed to the herbaria of Hooker, Durand, &c. 166 PROCEEDINGS OF THE AMERICAN ACADEMY Peak, alt. 9000 feet, "Wasatch Mountains, Utah, S. Watson. Leaves acute, sometimes an inch long, tapering into a slender petiole. Scape nearly a span high. 28. E. multiceps, Nees, Verz. PI. Max. v. Wied (extr. Trav. Neu- Wied), p. 20, ex char. Lana appressa candidissima indutum, caudicis ramis breviter adsurgentibus foliosis ; foliis oblongo-spathulatis oblan- ceolatisve in petiolum longe attenuatis ; scapo 3 - 5-pollicari ; capitulo bracteato ; involucris 5-10 tubulosis 5-dentatis ; perigonio albo vel fusco-flavido extus sublanuloso, segmentis obovato-cuneatis retusis ; filamentis glabriusculis. E. gnaphalodes, Benth. in Kew Jour. Bot. 5, p. 263 (1853). — Colorado, cliffs of the Upper Platte, Neu-Wied, Geyer, Gordon, Hayden, H. Engelmann, E. W. Emerson. Bracts under the head more conspicuous and involucrate than in other species of the group, one or two of them equalling or surpassing the involucres. Flowers small. E. multiceps, Nees, much anterior to Bentham's name, has been wholly overlooked, which, from the place of publication, is not surprising. 29. E. pauciflorum, Pursh, Fl. 2, p. 735. Glabrescens, Armerice facie ; caudicis ramis brevissimis crebris ; foliis linearibus subspathula- tisve margine revolutis in petiolum longe attenuatis supra mox glabratis ; scapo subspithamoeo ; involucris in capitulo 5-10 turbinato-campanu- latis 5-dentatis ; perigonio albo glabro, segmentis ovalibus ; filamentis inferne pubescentibus. — Nebraska to the Rocky Mountains in Colo- rado, Bradbury, H. Engelmann, Parry. * * Majores, subacaules, caulibus basi nunc breviter adsurgente tantum foliatis ; pedunculo valido scapiformi nudo capitulo aut solitario aut paucis umbellatis sat magnis superato; involucris brevi-campanulatis truncatis (dentulis 5-8 membranula prorsus connexis) permultifloris. Bi'acteola? villoso-plumosissima? ex in- volucro mox exserUe. Perigonium semper album, glaberrimum, segmentis latis. {Desmocephalorum Benth. species.) 30. E. latifoliuji, Smith in Rees Cycl. Soepius 1-2-pedale; foliis ovalibus basi lata rotundatis cordatisve subtus albo-lanatis supra cum scapo lana araneosa plus minus decidua; involucris in capitulo nunc pollicem lato 5-12 lanatis 5-dentulis ; perigonii segmentis lato- obovatis. E. arachnoideum, Esch. — Coast of California, from Santa Cruz northward to Humboldt Co. Leaves one to two inches long, on petioles (as in other species) of variable length. OF ARTS AND SCIENCES : JANUARY 26, 1870. 167 31. E. oblongifolium, Benth. Eriog. & in DC. I. c. Gracilius, spithamseum ad pedalem ; f'oliis oblongis ovalibusque basi saepius acutis ; involucris glabratis G-8-dentulis ; perigonii segmentis oblongo-obovatis. — California, along tbe coast, with the same range as the preceding, of which it is likely to prove a smaller or depauperate and narrower-leaved variety ; the matted tomentum sometimes deciduous even from the lower face of the leaves. Var. /3. ? minus, Benth. in DC, with only five and more prominent teeth to the involucre, is probably different ; but the solitary specimen is incomplete and insufficient. § 8. Capitellata. (Desmocephalorum sp. Benth.) Flos basi baud producta ipsa cum pedicello articulatus : perigonium 6-partitum glabrum vel villosulum, segmentis obovato-oblongis fere aequalibus. Involucra (truncata subdentata) pluriflora, pauca in capitula pi. m. paniculato-cymosa in scapo nudo congesta, nunc tantum gemina, alaria nec-non solitaria. Bracteolre plumosaa. Ovarium glabrum. Embryo incurvus, cotyledonibus latis bre vibus. — Herba? perennes, foliis omnibus radicalibus latis margine sa?pius undulatis, scapis 1 - 3-pedalibus nudis junciformibus nunc fistulosis cum in- volucris mox glabratis vel glabris, floribus (an semper ?) albis. 32. E. nudum, Dougl. in Benth. Eriog. Foliis subtus cano-(quando- que fulvo-j tomentosis ovatis rarius obovatis basi saspius subcordatis, petiolo plerumque longo gracili ; panicuke dichotomy raniis elongatis ; involucris cylindraceo-campanulatis ore truncato (dentibus 6-8 mem- branula prorsus connexis), alaribus sessilibus ; perigonio extus soepius glabro intus basi nunc parce piloso. E. arachnoideum, Hook. & Arn. Bot. Beech., non Esch. — Oregon and California, chiefly towards the coast. Magnopere variat: Var. /3. (E. offline, Benth. in DC.) Sublanatum, nempe scapo in- volucrisque lana araneosa tarde decidua obductis. — Umqua, Pickering and Brackenridge in Wilkes's Expedition ; Jeffries in herb. Kew ; ap- parently a form with foliaceous bracts at the lower nodes of the scape, and the flowers seem to be yellow ! Var. y. (pubijiorum, Benth. 1. c.) Involucris interdum fere om- nibus in paniculas ramis solitariis, perigonio extus pilosiore. — Califor- nia, Fremont, Rich, Heermann, Horn, &c. But there are traces of this pubescence in many, if not most, specimens of E. nudum. Var. 8. (E. auriculatum, Benth. Eriog.) Petiolis basi interdum di- latatis seu auriculato-dentatis ; scapo nunc inflato ; involucris saepius 168 PROCEEDINGS OF THE AMERICAN ACADEMY angustioribus solitariis. — Commoner southward in California, especial- ly forms with the scape inflated, of which Prof. Brewer collected seve- ral, some of them with all the involucres solitary and almost as in the section Virgata. 33. E. elatum, Dougl. 1. c. Foliis mollissime villoso-pubescentibus vel subtus fere velutinis ovato-oblongis sublanceolatisve basi (raro sub- cordatavel subhastata) in petiolum angustatis; scapo cum panicula rigido; involucris magis turbinatis repando-5-dentatis, alaribus nonnunquam solitariis longius pedicellatis, caeteris nunc potius glomerato-congestis quam capitatis ; perigonio basi extus pilosulo. — Washington Territory to California and Nevada, on plains. The pubescence of the flower is variable in degree, but not wanting as described by Bentham. South- ward the scape is sometimes inflated. § 9. Fasciculata, Benth. olim. Flos, etc. prrecedentium. Ovarium glabrum. Involucra (truncata subdentata, dentibus membranula primum connexis) perpluriflora, in capitula vel cymulas capituli- formes congesta, capitulis pi. m. bracteatis pedunculos dichotomos vel cymoso-umbellatos terminantibus, alaribus (aut ramo altero abortiente lateralibus sessilibus. Bracteolos plumosaa. — Suffru- tices foliosi, foliis parvulis alternis et in axillis fasciculatis subtus incanis margine sa?pius revolutis ; floribus albis nunc roseo tinctis, * Extus sericeo-villosis baud numerosissimis. Folia minus conferta. Embryo subrectus, radicula gracili in cotyledonibus ovalibus par- vulis leviter inflexa. 34. E. cinereum, Benth. Bot. Sulph. p. 45, & in DC. 1. c. Fruti- cosum, laxe ramosum, pube tenui canescens ; foliis secus ramos subfas- ciculatis ovatis margine undulatis minus aut vix revolutis subtus incanis breviter petiolatis ; pedunculis elongatis junciformibus fere nudis su- perne dichotomis ; capitulis paucis laxiusculis. — California, San Pedro, Hinds or Barclay ; Santa Monica, on sands of the sea-shore, " a shrub three to five feet high, forming dense patches," Brewer. Leaves vary- ing from orbicular to obovate, ovate, and almost oblong, from half an inch to an inch in length, mostly with a distinct short petiole. Coty- ledons oval, somewhat excentric, barely twice the breadth and little more than half the length of the slightly inflexed radicle. * * In involucris numerosissimis, demum secus axin elongandum baud raro quasi racemosis, extus glabris vel pilosulis. Suffrutices, ramis creberrime ac fasciculatim foliosis. Folia parva margine OF ARTS AND SCIENCES : JANUARY 26, 1870. 169 revoluta. Radicula in cotyledonibus orbiculatis dimidio brevioribus accumbenti-incurva. 35. E. parvifolium, Smitb in Pees Cycl. Primum arenoso-lana- tum ; foliis ovatis seu ovato-lanceolatis undulatis basi abrupta vel obtusa pi. m. petiolatis subtus tomentosis ; ramis floridis seu pedunculis 2-3- cbotomis ; perigoniis glabris. — California, near tbe coast ; by all col- lectors, from Hrenke and Menzies downwards. Var. crassifolium, Benth. PI. Hartw. no. 1940, is a very condensed form, from the sea- coast at Monterey. 36. E. fasciculatum, Benth. Eriog. Aut glabrum aut tomen- tulosum ; foliis oblongo-linearibus seu lineari-spathulatis stepius maxime revolutis, majoribus pi. m. in petiolum brevem sensim attenuatis ; pedunculo nudo gracili sajpissime umbellatim diviso 3 - 6-radiato. — California from Monterey southward. Var. a. (E. rosmarinifolium, Nutt. PL Gamb. p. 164. E. fas- ciculatum, Benth. Eriog. p. 410.) Preeter folia subtus maxime revo- luta tenuiter albo-tomentosa fere glaberrimum ; involucri 5-rcarinati dentibus 5 triangularibus paullo exsertis ; perigoniis glabris. Var. /3. (E. rosmarinifolium /3. foliolosum, Nutt. 1. c. E. fasci- culatum, Benth. in DC. Prodr. p. p.) Plus minus pilosulo-pubescens ; involucro magis truncato (dentibus ultra sinus tenui-membranaceos haud productis) perigoniisque extus leviter pubescentibus. Var. y. polifolium. (E. polifolium, Benth. in DC. 1. c.) Pube tenui undique cinereum vel canescens ; foliis minus revolutis, pagina superiore nunc glabrescente ; pedunculo vulgo longiore ; involucro etc. var. /3. — From Monterey to San Diego and the Gila. The forms a and y are seemingly very different, but they run together com- pletely. The teeth, or firm portions at the orifice of the involucre, do not project beyond the scarious-membranaceous sinuses except in the first, and in this sometimes very slightly. § 10. Cortmbosa, Benth. Flos basi haud producta ipsa cum pedicello articulatus ; perigonium 6-partitum, extus glabrum, seg- mentis interioribus stepissime pi. m. minoribus. Ovarium glabrum vel glabellum. Involucra pluriflora, 5 - 6-dentata, cymosa, nempe pedunculo nudoapice umbellatim diviso, radiis repitite 2-3-chotome vel umbellatim in cymam corymbiformem subdivisis, ultimis seu pedicellis brevibus aut (pnesertim alaribus) nullis. Embryo in- curvus, cotyledonibus orbiculatis radiculae multo longiori pi. m. ac- VOL. VIII. 22 170 PROCEEDINGS OF THE AMERICAN ACADEMY cumbentibus. Caules inferne saspius foliosi. Folia plerumque an- gusta et alterna, etiam radicalia hand cordata, subtus vel utrinque pi. m. albo-lanata. * Fruticuli, nunc caulibus abbreviatis parum suffruticosis. Peri- gonia intus glabra, segmentis subsimilibus. Ovarium superne ad angulos ssepe scabridum. •»- Rami lignosi erecti vel adsurgentes, foliosi, pedunculo cymifero aut brevi aut longiusculo terminati. Flores albi vel rosei (raro in eadem speciei lutei) ; perigonio basi post anthesin srepius eras- siusculo, segmentis obovatis saltern interioribus emarginatis vel retusis. 37. E. eric^efolium, n. sp. Depressum, tortuoso-ramosissimum ; foliis in ramulis creberrimis subulato-linearibus (lin. 2 longis) supra glabris subtus albo-lanatis sed ob margines maxime revolutos quasi teretibus subtus leviter canaliculars ; cyma in pedunculo vix ultra folia suprema exserta parva ex involucris 3-7 confertis tomentulosis penta- gons breviter 5-dentatis ; floribus albis sesquilineam longis. — Arizona, near Fort Whipple, Drs. Coues and Palmer, Sept. 1865. The branches or stems we possess are barely a span long, rigid, and wholly fruticu- lose. Involucre a line and a half long. Segments of the perigonium all nearly alike, dilated-obovate. 38. E. corymbosum, Benth. in DC. Sesqui-bipedale, floccoso- lanatum ; ramis validis alte foliosis ; foliis oblongis subundulatis (8-18 lin. longis) ; cyma late corymbosa floribunda ; floribus ut videtur albis sesquilineam longis. — Utah and W.. New Mexico, Fremont, Beck- with, Newberry (San Juan River, in Macomb's Expedition), Whipple. The var. divaricatum, Torr. & Gray, Pacif. R. R. 2, p. 129, & 4, p. 131, is not unlike Fremont's, but in better specimens, and much whitened by the more persistent floccose wool. Cyme broader and fuller than in the broadest-leaved forms of the next species, which approach this ; but the flowers mostly twice as large, and the stem and branches stouter. 39. E. microthecum (or microtheca), Nutt. PI. Gamb. p. 162. Humilius, vix ultrapedale, a basi ramosissimum, tomeuto floccoso nunc tenuiore ; foliis angusto-oblongis linearibusque ; cyma aut confertiflora aut effusa ; floribus albis nunc roseis raro luteis haud ultra lineam longis. — Mountains or high plains, Nebraska to New Mexico, the interior of Northern California, and Oregon. This includes a variety OF ARTS AND SCIENCES : JANUARY 26, 1870. 171 of forms, several of them described as species ; but only the larger forms with broad leaves, and some with much larger involucres (var.? Fendlerianum, Benth.) and approaching the preceding species, stand in the way of the present inevitable union. The Var. a. (E. nricrotheca, Nutt., Benth. in DC.) is a low form with linear or linear-oblong nearly plane leaves and open corymbose cymes on a rather long peduncle ; involucres a line to a line and a half long. E. laxiflorum, Nutt. (the var. 0. ? laxiflorum, Benth.) is the same, with involucres a trifle larger and fewer in the cyme. Forma alpina, pyg- mcea. A very depauperate, short-stemmed, and comparatively long- peduncled alpine form was gathered by Prof. Brewer in Sonora Pass, Sierra Nevada, alt. 9,000 feet, in loose sand ; and somewhat similar ones, only two inches high, on the Humboldt Mountains, Nevada, alt. 10,000 feet, by S. Watson. Geyer's 253, with white flowers, and a broader-leaved form with yellow flowers, collected by S. Watson on the Wasatch Mountains in Utah (both with short and low leafy branches and long peduncles), connect this with the Var. 0. Fendlerianuji, Benth. Majus, latifoliura ; involucris lin. 2 longis in cyma arapla laxa. — New Mexico, Fendler, no. 767. Remarkable for the size of the parts, the leaves being an inch or an inch and a half long, including a distinct petiole of four to sis lines, flat, and four or five lines wide. Specimens from Nevada (Brewer, Torrey, Bloomer, dec), some with narrower, others with almost oval leaves, hardly an inch long, connect this with Var. y. coxfertifloruji. (E. confertiflorum, Benth.) Fruticu- losum, foliosum ; foliis anguste oblongis ; cymis confertifloris saspius contractis. — Utah to interior of Oregon, and northern part of Cali- fornia. Flowers either white, deep rose-color, or sometimes apparently yellow. Bentham's var. Stansburyi has the dense floribund cyme of this, but the longer naked peduncle and narrow revolute leaves of some of the succeeding forms. Var. S. leptophyllum. (E. Simpsoni, Benth. in DC. excl. /3. E. effusum, var. leptophyllum, Torr. in Sitgreaves Rep. p. 168, excl. tab. 10. E. effusum, var. foliosum in Pacif. R. R. 2, p. 129.) Folio- sum ; foliis anguste linearibus margine valde revolutis glabratis ; cyma brevi saspius conferta floribunda. — Utah and New Mexico, Gunnison, Woodhouse, Simpson, Whipple, Newberry. Bentham's E. Simpsoni, var. Jloccoso-lanata, is only E. annuum. Torre}' 's plate of E. effusum, var. leptophyllum (Sitgreaves, t. 10), with long naked peduncle, short 172 PROCEEDINGS OF THE AMERICAN ACADEMY caudex-like stem, and strongly toothed involucre (this said in the let- ter-press to be nearly toothless, and the stems leafy), really belongs to his E. Fremonti, i. e. to E. brevicaule. Var. e. effusum (E. effusion, Nutt. 1. c.) Magis lanatum ; foliis oblongo-linearibus nunc angustioribus margine demum pi. m. revo- lutis ; cyma floribunda decomposita. paniculato-effusa, radiis ssepius longioribus ; floribus albis. — Nebraska to Montana and N. New Mexico. Some specimens (such as 192, Dr. Parry, from Huefano Mountains, and Bentham's /3. rosmarinoides, which is not from California, proba- bly from the Platte) connect this perfectly with the preceding form, and with the proper E. microthecum. Var. £. leptocbadon. (E. leptocladon, Torr. & Gray in Pacif. R. R. 2, p. 129.) Gracilius ; foliis linearibus ; cymis laxe paniculatis, involucris nunc (ramulo altero abortiente) unilateralibus. — On Green River, Utah, Gunnison. The name E. microthecum, rather than effusum, is adopted for the species, because the latter is imperfectly characterized from a speci- men not yet in flower, and the name is far from applicable to all the forms. -»— -t— Rami foliati lignescentes brevissimi vel casspitoso-depressi, pe- dunculum nudum elongatum scapiformem herbaceum proferentes. Flores prascedentium, sed perigonii segmenta inter se fere asqualia. Pedunculi et involucra 5-dentata glabri vel mox glabrati. 40. E. brevicaule, Nutt. PI. Gamb. Caaspitoso-fruticulosum ; fo- liis linearibus oblongo-linearibus vel anguste spathulato-oblanceolatis in petiolum gracilem attenuatis undique niveo-lanatis vel supra gla- brescentibus ; scapis rigidis 3-10-pollicaribus; cyma repitite umbella- tim vel trichotome divisa, ad nodos calyculiformi-bracteatis ; peri- gonii nunc Havi segmentis obovato-oblongis. E. brevicaule, campanida- tum fy micranthum, Nutt. 1. c. E. Fremonti, Torr. in Frem. Rep. unpublished. E. effusum var., Torr. in Sitgreaves Rep. t. 10 (non descr. p. 168). E. effusum var.? nudicaule, Torr. Bot. Whipp. Pacif. R. R. 4, p. 132. — Rocky Mountains, from the Platte to N. New Mexico, Utah, and adjacent parts of Oregon. Nuttall's three species (one of them omitted by Bentham) are not permanently distinguish- able, even as varieties, and some forms of the preceding species are occasionally too close. The leaves vary from 1 to 2| inches long, ex- clusive of the petiole, and from one to five lines in breadth, their margins OF ARTS AND SCIENCES : JANUARY 26, 1870. 173 at length mostly revolute. Cyme ample, sometimes rather fastigiate, sometimes very open ; the bracts at each node short and connate into a ealyculus, which is white-woolly inside. Involucres either glabrous or the wool early deciduous, varying from oblong to cyathiform-cam- panulate, and from a line and a quarter to nearly two lines in length ; the flowers of about the same length. 41. E. loxchophtllum, n. sp. Caespitosum ? elatius ; caulibus basi vix lignescente breviter foliatis ; foliis lanceolatis seu lato-linearibus in petiolum gracilem attenuatis subtus albo-lanatis ; pedunculo elongato in cymam repitite trichotomam paniculoeforinem soluto ; bracteis inferi- oribus filiformibus, summis subulatis ; perigonii albi segmentis obovatis retusis. — On the Rio Blanco, interior of New Mexico ? Newberry in Macomb's Expedition : herb. Torr. Leaves not much crowded on the base of the single stem seen, about three inches long, and tapering into a petiole of an inch or more in •length, obtuse, rather thin, flat ; the somewhat scape-like peduncle with the loose cyme a foot in length, the primary divisions four inches long. Involucres fewer-flowered than in the preceding, the flowers of about the same size. * * Annua, transmontana, caulibus laxe ramosis inferne tantum foliosis. Perigonia rosea, intus glaberrima, segmentis consimilibus fere aequalibus. Bracteolas vix barbellatae. 42. E. truncatuji, n. sp. Laxe floccoso-lanatum, pedale ; foliis plerisque ad nodos inferiores subfasciculatis spathulatis oblongisve in petiolem gracilem attenuatis ; pedunculis elongatis nudis ; cyma laxa 2-3-chotoma ex involucris pauciusculis multifloris oblongo-campanulatis ore truncato, alaribus sessilibus ; bracteis minimis ; perigonii segmentis obovatis. — California, on the summit of the eastern peak of Monte Diablo, Brewer. Leaves an inch and a half long, including the petiole. Involucre two lines long, thin and scarious between the broad greenish ribs, which are connected to the very top. Perigonium a line long. * * * Annua, cismontana, caulibus elatis strictis sursum longe foliatis. Perigonia alba, fundo lana longa tenuissima arachnoidea instructo, segmentis disparibus, exterioribus multo majoribus. Bracteolaa tenuiter plumosae. Cymae decomposita? floribundae. 43. E. axxdum, Nutt., Benth. in DC. Albo-lanatum ; foliis oblon- gis basi attenuatis plerisque petiolatis ; involucris niveo-lanatis intus glabris breviter 5-dentatis ; perigonii segmentis exterioribus late obovatis, interioribus oblongis. E. Lindheimerianum, Scheele in 174 PROCEEDINGS OF THE AMERICAN ACADEMY Linnsea. E. Simpsoni /3. floccoso-lanata, Benth. 1. c. — Plains of Nebraska, Arkansas, and Texas to the Rocky Mountains and New Mexico. — Forma parviflora, involucris brevioribus lana floccosiore, caule cyrais nonnullis axillaribus proferente. E. cymosum, Benth. 1. c. — "Western Texas, Wright. N. Chihuahua, Thurber. 44. E. multiflorum, Benth. Eriog. Lana floccosa albidum ; foliis oblongis lanceolatisque undulatis, caulinis sessilibus basi obtusa vel auriculata ; involucris perplurimis 5-lobatis extus saepe denudatis intus ai'achnoideo-lanatis ; perigonii segmentis eximie biseriatis, exterioribus orbiculato-ovalibus demum sinu profundo cordatis, interioribus fere linearibus. — Plains of Arkansas, Louisiana, and Texas. § 11. Virgata, Benth. Flos basi haud producta ipsa cum pedi- cello articulatus ; perigonium 6-partitum fere semper glabrum. Ovarium glabrum vel ad angulos hispidulum. Involucra (sajpius parva vel angusta) sessilia, secus ramos paniculae plerumque vir- gatos unilateraliter disposita. Embryo incurvus, cotyledonibus brevibus radicular gracili pi. m. incumbentibus. * Perennia, in paucis basi suffruticosum, incano nunc floccoso- lanatum. Flores albi, nunc roseo tincti, glaberrimi, in involucro plures. -t- Perigonium basi lata quasi truncatum, ob segmenta 3 exteriora accrescentia lato-ovalia marginibus a basi ipsa discretis atque subauriculato-rotundatis. Panicula saepe dichotoma. Bracteaj plerumque subfoliosi. 45. E. niveum, Dougl. in Benth. Eriog. Tomento denso (in caulibus floccoso) candido-lanatum, ultrapedale, basi suffruticosum ; cau- libus floridis infei'ne foliatis vel subnudis ; foliis ovatis oblongisve longius petiolatis ; involucri dense lanati dentibus 3-4 subulatis cum bracteis pi. m. recurvo-patentibus, ceteris minutis vel nullis ; perigonii segmentis exterioribus mox accresceutibus orbiculato-ovalibus (basi fere cordu- latis) interiora obovato-spathulata inferne angustata includentibus. — Interior of Oregon and Washington Territory, Douglas, Geyer, Spal- ding, Cooper, Lyall. Var. decumbens (E. decumbens, Benth. 1. c.) : forma ramosiore, ramis nunc decumbentibus magis foliatis, floribus paullo majoribus. — Interior of Oregon, Douglas. No other specimens are so well marked as those of Douglas, but Spalding's plant approaches them. Bracts in the species mostly equalling or exceeding the involucre, the three more OF ARTS AND SCIENCES : JANUARY 26, 1870. 175 or less spreading or recurved teeth of which (sometimes as long as the tube itself, but variable) are peculiar. 46. E. dichotomum, Dougl. 1. c. Prrecedenti subsimilis ; ramis e caudice ca?spitoso-multicipiti brevibus crebre foliatis ; foliis oblongis in petiolum attenuatis ; pedunculis strictis scapiformibus rarius foliatis (subpedalibus) ; bracteis appressis involucro breviuscule obtuseque subasqualiter 3-5-dentato brevioribus; perigonii segmentis exterioribus obovato-ovalibus. — Forma humilis, E. alburn, Nutt. PI. Gamb. Forma paniculis magis virgatis, E. strictum, var. laehnostegia, Benth. in DC. Interior of Oregon, and Utah, Douglas, Nuttall, Fremont. -•— -i— Perigonium basi acutum, segmentis conformibus. ++ Scaposa, stricta. 47. E. strictum, Benth. Eriog. excl. /3. Basi cagspitoso-ramosis- simum ; foliis confertis spathulatis seu obovato-oblongis in petiolum longe angnstatis subtus albo-lanatis ; scapis gracillimis (pedalibus) glabris vel mox glabratisdi-trichotome ramosis; bracteis parvis subulatis adpres- sis; involucris (lineam longis) glabratis campanulatis equaliter 5-denta- tis ; perigonii segmentis ovalibus oblongisve ; ovario glaberrimo. — Blue Mountains of Oregon, Douglas only. We find no specimen from Fremont, except of the var. laehnostegia, which clearly belongs to the foregoing species. This has similar dichotomous inflorescence, but much more slender, and involucres and flowers only half as large. 48. E. RACEMOSUJr, Nutt. PI. Gamb. Floccoso-lanatum ; foliis e caudice subterraneo longe petiolatis ovatis oblongisve nunc subcordatis subtus albo-lanatis ; scapo valido (1 - 2-pedali) nudo rariusve ad nodos inferiores folioso-bracteatis ; involucris tubuloso-campanulatis obtuse 5- dentatis floribundis secus ramos subsimplices paucos rigidos stricte spicatis appressis ; perigonii majusculi (lin. 2 longi) rosei seu albi segmentis obovatis ; ovario glaberrimo vel superne scabrido. E. orthocladon, Torr. in Sitgreaves Rep. p. 167, t. 8, & DC. 1. c. E. obtusum, Benth. in DC. 1. c, forma foliis subrotundis. — N. New Mexico and Utah, Fendler, Fremont, Gambell, Remy, Simpson, Woodhouse, Bigelow, Newberry, Watson. Leaves 1 - 2 J inches long, the petioles mostly still longer. Scape rigid, usually only once or twice forked, sometimes more paniculate ; the branches erect and strict, when few elongated ; the numerous involucres approximate and, with their numerous flowers, forming a virgate spike rather than a raceme. Coty- ledons orbicular, very excentric, rather shorter than the incurved radicle. 176 PROCEEDINGS OP THE AMERICAN ACADEMY ++ ++ Caulescentia, cliff u so-panic u lata. 49. E. Wrightii, Torr. in DC. 1. c. E basi suffruticosa raraosum, 1 - 2-pedale ; ramis inferne foliosis ; foliis oblongo-ovatis vel sub- lanceolatis basi angustatis utrinque vel subtus albo-lanatis (6-12 lin. longis), minoribus ssepe in axillis fasciculatis ; panicula dicbotome ramosa ; involuci-is parvi-bracteatis secus ramos rigidulos laxius spicatis 5 - 6-dentatis (lin. 1 - 1 \ longis) ; perigonii (lin. 1-1^- longi) segmentis lato-obovatis vel exterioribus suborbiculatis ; ovario superne praesertim ad angulos birtello-scabro. E. Wrightii (Torr.), trachygonum (Torr.) 6 helianthemifolium, Bentb. in DC. 1. c. — S. W. Texas to Arizona, Nevada, and California, Wright, Parry, Thurber, Newberry, Palmer, Torrey, Brewer, &c. But Scheer's plant from Chihuahua appears to be E. potycladon, Benth. A polymorphous species. The E. trachy- gonum has larger and more numerous flowers ; var. Jloccosum, Benth. shorter involucres ; and a depauperate form from Nevada (Anderson, Bloomer, Torrey, Brewer) very short leafy branches and more scape- like peduncles. * Annua, vel in spec, prima forte perennantia. Flores parvi, albi vel rosei, basi acuti vel acutiusculi. Bractere parvae, adpressae. -t- Involucra tubulosa, lin. 3^-2 longa, in depauperatis E. viminei vix minora, adpressa. ■►+ Pluriflora, canescenti - lanata, secus ramos plerumque subsim- plices dissita. Perigonium glabrum (lin. 1 - 1 \ longum), segmentis obovatis fere sequalibus. Plantse juniores omnino albo-lanataa, tomento caulium, etc. demum floccoso rarius deciduo. 50. E. elongatum, Benth. Bot. Sulph. & in DC. 1. c. Caulibus ramisve virgatis e basi indurascente (vix perenni ?) sesqui-tripedalibus nudis basim versus foliis oblongo-lanceolatis petiolatis parce nunc par- cissime instructis ; involucris 3 - 3£ lin. longis sat multifloris secus ramos simplices strictos spicatis remotis, ore repando-truncato ; brac- teolis sursum parce villoso-barbatis ; perigonio albo vel subroseo ; ovario glabro. — California, plains and hills, from Monterey to San Diego, &c. Dr. Torrey, in Bot. Mex. Bound, and Ives Exped., refers this to E. virgatum, to which indeed it is related, and the root probably is not really perennial. Besides the greater size and stout- ness, and the more numerous flowers in the involucre, the achenium is more tapering, the embryo of twice the size, a line or more in length, and the radicle springs from near the uppermost part of the oval- orbicular cotyledons. OF ARTS AND SCIENCES: JANUARY 26, 1870. 177 51. E. virgatum, Bentli. in DC. Caule gracili 1^-2 pedali aut basi tantum aut superne parcius foliis ovatis oblongisve instructis, ramis paucis plerumque simplicibus longe virgatis nunc paniculato- raraosis ; involucris dissitis 2-2^ lin. longis, ore 5-dentato ; brac- teolis vix barbellatis ; perigonio albo ; ovario et achenio abrupte ros- trato superne saltern ad angulos birtello-scabris. — California, on tbe plains, usually more northern than the preceding, Fremont, Bridges, Wallace, Brewer, Bolander, &c. Embryo half a line long, with short orbicular accumbent cotyledons. A luxuriant form collected by Bo- lander, two or three feet high, with the numerous virgate branches here and there leaf-bearing, passes into Var. roseum (E. roseum, Durand & Hilgard, in Jour. Acad. Philad. 3, p. 45 (1854) & Pacif. R. R. 5, p. 14, t. 15) : caule ramoso ad paniculam usque laxam foliato ; involucris in ramulis brevibus paucis ; perigonio roseo. — Pose Creek, California, Dr. Heermann : earlier published than E. virgatum. To this belongs E. verticillatum, Nutt. PI. Gamb. 1. c, the earliest name, but most imperfectly charac- terized from a specimen not yet in flower. ++ ++ Involucra pauciflora vel subpluriflora, anguste tubulosa (haud ultra lineas 2 longa), secus ramulos tenues paniculre diffusa? amplaa dissita, perigoniis (glabris aut pilosis) etiam fructiferis longiora. Bracteola? vix barbellatos. Plantar demissas (spithamea? ad peda- lem), superne tenuiter tomentosae vel glabrae. 52. E. dasyanthemum, n. sp. Lana tenui flocculosa cinereum vel superne glabratum, inferne foliatum ; foliis subtus incano-lanatis rotundatis in petiolum abrupte angustatis ; involucris pauci-plurifloris breviter 5-dentatis ; perigonio extus saltern basi tenuiter villoso, segmentis obovatis fere requalibus. (E. vimineum, var. eriocladon Benth. in DC. ? Spec, in herb. Benth. & herb. Torr. haud reperta.) — California : near Clear Lake, Bolander, Torrey ; also Borax Lake, Torrey, a more glabrate form, both as to the panicle and involucre, and the exterior of the flower, the pubescence of which in other speci- mens is very conspicuous. Branches of the diffuse panicle less slender and compound, and the flowers rather larger, than in E. vimineum ; the involucre commonly hoary, and fully two lines long, sometimes 15 - 20-flowered. 53. E. viMiNEDsr, Dougl. in Benth. Eriog. Foliis radicalibus rotun- datis subtus incani- supra araneoso-lanatis ; involucris sparsis pauci- VOL. VIII. 23 178 PROCEEDINGS OF THE AMERICAN ACADEMY floris brevissirae 5-dentatis cum ramis tenuissimis panicula; effuso- decompositre glabris ; perigonio glaberrimo, segmentis exterioribus late obovatis, interioribus angustioribus. — Washington Territory to Cali- fornia and Nevada ; apparently very common. Involucre slender, about a line and a half or sometimes two lines long. ++ ++ ++ Involucra pauci- vel subpluriflora, oblongo-campanulata, subturbinata, 5-dentata, circa lineam longa, secus ramulos tenues panicuke plerumque ramosissimze dissita vel sparsa. Perigonium glabrum, post anthesin involucro brevius, segmentis interioribus angustioribus. Folia subtus albo- supra srepiusque cum ramis et involucris floccoso-lanata, nunc omnia radicalia, nunc plus minus caulina. 54. E. gracile, Benth. Bot. Sulph. & in DC. 1. c. Ssepius ramosissimum, panicuke ramis patentibus ; foliis ovatis, oblongisve ; bracteolis in involucro brevibus tenuiter subglanduloso-barbellatis ; perigonii (albi vel rosei) segmentis exterioribus obovatis, interiori- busve oblongis. — California and Nevada, apparently common and widely variable ; some of the glabrate forms approaching E. vimineum, which has similar only minutely barbellate bractlets at the base of the pedicels. Bentham's original plant has leaves on the lower nodes. Var. /3. effusum : humile ; panicula decomposita patentissima involucrisque sa3pius glabratis ; foliis omnibus radicalibus. — Chiefly southward, and in Nevada ; the involucres and flowers sometimes rather large for the species, sometimes very small. Var. y. leucocladon (E. leucocladon, Benth. PI. Hartw. p. 333, & in DC. 1. c.) : albo-lanatum ; caule nudo subsimplici ; ramis pani- cula? paucioribus strictiusculis ; floribus albis. Var, 8. acetoselloides {E. acetoselloides, Tovw in DC. 1. c.) : albo- lanatum ; caule longe usque ad paniculam subsimplicem foliato ; floribus rubentibus. — California, Fitch, Shelton, only in herb. Torr. ; and Remy collected a form connecting with the preceding. 55. E. polycladon, Benth. in DC. Lana persistente dealbatum ; caule 2 - 3-pedali usque ad paniculam amplam strictiusculam foliato ; foliis oblongis obovatisque ; bracteolis in involucro pilis tenuissimis longissimis parciusculis villosis ; perigonii albi segmentis exterioribus flabellato-cuneatis, interioribus obovato-spathulatis, utrisque basi at- tenuates. — S. W. Texas, Wright, to Chihuahua, Potts (E. helian- themifolium, Benth. in DC. Prodr., quoad pi. " herb. Scheer,") and Ari- OF ARTS AND SCIENCES : JANUARY 26, 1870. 179 zona, Thurber, Palmer, & Coues. A stouter and larger-flowered form near San Antonio, New Mexico, Dr. Bigelow, in Whipple's Expedi- tion. This species is to be distinguished from forms of the preceding with leafy stem and erect branches of the panicle by the long and delicate villosity of the bracteoles, and by the perigonium. The pan- icle is ample, but the branches erect or strict. ++++++++ Involucra saspius brevi-campanulata, parva, perigoniis post anthesin auctis breviora, secus ramulos paniculaa nudae ple- rumque intricatos sparsa, dentibus 4-5 latis rotundatis. Brac- teolae in involucro paleolatre. Folia omnia subradicalia. 56. E. Heermanni, Durand & Hilgard in Pacif. R. R. p. 14, (Bot.) t. 17. Glaberrimum, vel forte glabratum, dichotomo-ramosissi- mum ; involucris secus ramulos breves divaricatos paucis brevi-cam- panulatis lineam longis latisque plurifloris bracteas ovato-subulatas 2 - 3-plo superantibus ; bracteolis glanduloso-ciliatis, exterioribus line- aribus, intimis filiformibus ; perigoniis glabris, fructiferis lin. 2 longis, segmentis exterioribus rotundatis interioribus oblongo-spathulatis multo majoribus ; achenii rostro hirtello-scabro. E. genicidatum, Durand & Hilgard in Jour. Acad. Philad. 3, p. 45, non Nutt. — California, Pose Creek, Dr. Heermann. Sterile plains of Humboldt Co., Nevada, Tor- rey. Old flowering branches only ; the base of the plant, leaves, and root not collected. But the species cannot be mistaken. 57. E. Plumatella, Durand & Hilgard, 1. c. t. 16. Floccoso- lanatum, humile ; foliis radicalibus orbiculatis longe petiolatis subtus albo-lanatis ; paniculae decompositae ramis rigidulis floribundis nunc rectis nunc tortuosis demum implectentibus; involucro minimo campan- ulato paucifloro bracteas baud excedente ; bracteolis filiformibus vix barbellatis ; perigoniis albis et roseo-purpureis glabris lineam longis, segmentis conformibus (interioribus paullulum angustioribus vix longi- oribus) quasi panduriformibus ; achenio sursum hirtello-scabrido. — Pose Creek, California, Heermann ; apparently a stouter form than common. Nevada, chiefly in the desert, Anderson, Bloomer, Stretch, Torrey, Watson. A span high, or rarely taller, from an annual root; the panicles commonly forming implexed matted masses, their branchlets usually slender and rather brittle. Segments of the perigonium obovate-cuneiform and broadly refuse, when dry appearing panduriform by the incurving of their margins about the middle. Embryo much incurved, the cotyledons wholly accumbent. 18U PROCEEDINGS OF THE AMERICAN ACADEMY Var. ? Palmeri: panicula patentissima ; involucris cylindraceia fere lineam longis bracteas sgepius super'antibus, floribus (albis) dimidio minoribus; bracteolis paucibarbatis. — Arizona, Dr. Palmer, 1869. This appears to be intermediate in character between E. Plumatella and.E. gracile, and is perhaps of a distinct species. The flowers are like the former, except in size, or the segments a trifle narrower and perhaps the inner ones more decidedly longer. 58. E. intricatum, Benth. Bot. Sulph. p. 46, t. 22. Foliis radicalibus suborbiculatis longe petiolatis viscoso-pubescentibus; panicula divaricato- ramosissima involucrisque minimis brevi-campanulatis paucifloris gla- berrimis ; bracteolis obovato- vel cuneato-oblongis ciliolatis ; perigonii extus parce hirtelli segmentis obovatis conformibus ; ovario glabro. — San Bartolome, Lower California, Hinds. Bentham describes the perigonium as glabrous ; but the scattered hairs on the outside of the perigonium are represented in the plate. § 12. Pedunctjlata, Benth. Flos basi ipsa (lata rariusve acuta) cum pedicello articulatus. Ovarium glabrum. Involucra pauci- pluriflora, 5-dentata, omnia pedicellata, terminalia et alaria, soli- taria : pedicelli sagpius elongati, in ramis 2 - 3-chotomis pedun- culi aphylli parvi-bracteoli scapiformis laxe paniculati. Embryo praicedentium. Herba? plerumque annual, foliis latis radicalibus vel in caule brevi sgepissime rotundatis, inflorescentia cum involucris nunquam pubescente, floribus plerumque albis seu albidis. * Panicula divaricato-ramosissima glandulis claviformibus obsita : involucra pauciflora. Annua, scaposa, humilia. Ob pedicellos perbreves sp. sequentis Virgatis approximanda. 59. E. brachypodum, n. sp. Foliis rotundatis laxe albo-lanatis ; panicula divaricatissima fere humifusa rigida ; pedicellis involucro glan- duloso 8-12-floro baud longioribus ; bracteolis sublinearibus hirsuto- ciliatis ; perigonii glabri segmentis exterioribus cordato-ovatis obtusis- simis, interioribus dimidio minoribus ovatis longe obtuseque acuminatis. — Western borders of California, in alkaline sands around Kingston Spring, llemy, in herb. Mus. Paris. Branches of the panicle stouter and more rigid than in the next ; the involucre and also the accres- cent perigonium a line long. 60. E. glandulosum, Nutt. ex Benth. in DC. Foliis rotundatis viridibus parce pilosis ; panicula tenui effusa ; pedicellis capillaribus involucro eglanduloso perpaucirioro multoties longioribus ; perigonii OF ARTS AND SCIENCES : JANUARY 26, 1870. 181 segraentis oblongo-ovatis acutiusculis suba?qualibus extus parce hirsutis. Oxytheca glandulosa, Nutt. PL Gamb. p. 170. — " Rocky Mountains of Upper California," according to Nuttall ; an impossible habitat. Dr. Gambell probably collected it in New Mexico. Involucre and flowers half a line, the divaricate pedicels two or three lines long. . * * Panicula cum pedunculo et involucris (iis pedicellisque raro mi- nutissime glandulosis) laevissima. -i— Effuso-ramosissima floribunda ; pedicellis rigidis nunc subrace- moso-secundis mox deflexis. Involucra pluriflora, circa lineam longa. Perigonium glaberrimum. Achenium rostro plus minus scabro. Annua ; sp. prima etiam Virgatis approximanda. 61. E. deflexum, Toit. in Ives Colorado Exped. Bot. p. 24. Sub- validum ; foliis omnibus radicalibus orbiculatis subcordatis floccoso- lanatis (majoribus sesquipollicaribus) longe petiolatis ; paniculre nunc ultrapedalis ramis rigidis junceis srepius divaricatis ; pedicellis brevis- simis saltern involucro brevi-campanulato vel hemisphrerico breviori- bus ; bracteolis (extimis lato-linearibus, intimis filiformi-spathulatis) barbato ciliatis ; perigonii albi basi obtusissimi segmentis exterioribus orbiculatis basi cordatis, interioribus minimis obovatis retusis multoties minoribus. — S. E. California, on the Colorado, &c, Schott, New- berry, Cooper. In sand, in a canon of the Wasatch Mountains, Utah, S. Watson, in Clarence King's Expedition. Tucson, S. Arizona, Dr. Palmer: a form with the smaller involucres shorter than the pedicel. Involucre a line long and about as broad, rather many-flowered, the five teeth broad and rounded. Exterior segments of the perigonium becoming a line in length and breadth, the inner segments hardly longer than the ovary. 62. E. nutans, n. sp. Tenellum ; folds omnibus radicalibus rotun- dis floccoso-lanatis longe vel breve petiolatis ; panicula efFusa ; pedi- cellis nutantibus cum involucro late campanulato 2-3-plo breviori minutissime viscoso-glandulosis ; bracteolis filiformibus creberrime glandulosis; perigonii late rosei basi obtusissimi segmentis exterioribus late ovalibus emarginatis (fere obcordatis), interioribus oblongis retusis paullo brevioribus plus dimidio minoribus demum conduplicatis. — Ne- vada : canon at the eastern base of the Sierra Nevada, Lieut. Beck- with ; passed over in Pacif. R. R. 2, p. 129, as E. cernuum. Canon in W. Humboldt Mountains and Unionville Valley, S. Watson in C. King's Expedition. The specimens at most are barely a span high ; 182 PROCEEDINGS OF THE AMERICAN ACADEMY the leaves half an inch in diameter, and the panicle rather simple. Involucre a line long and about as broad, rather few-flowered. Pedicels two or three lines long : perigonium as long, or at length longer. 63. E. Watsonii, n. sp. Gracile ; foliis pra3cedentis srepius sub- cordatis ; panicula decomposita patentissima laxe floribunda ; pedicel- lis eglandulosis patenti-deflexis involucro angusto- vel clavato-campan- ulato vix plurifloro 2-3-plo nunc paullo longioribus; bracteolis setaceis parce glanduloso-barbellulatis ; perigonii albi vix rosei basi obtusi segmentis conformibus ovalibus parum retusis, interioribus paullulum minor ibus. — Nevada, in the Humboldt Mountains, Torrey. Star Canon, W. Humboldt Mountains, alt. 5,000 feet, S. "Watson, in C. King's Expedition. The exceedingly effuse panicle spreads in the largest specimens over a foot in breadth. Pedicels much less deflexed than in the next, the longest fully three lines long, and nearly thrice the length of the involucre, but many of the later ones not longer than it, that is, a line or a line and a quarter in length, either smooth or very minutely and obscurely glandular. Perigonium a line long, or slightly more when accrescent, narrower than in E. nutans, and not so very broad at the base, but 6-parted, and not narrowed at base in the manner of the next. 64. E. cernuum, Nutt. PI. Gamb. p. 162. Gracile; foliis radi- calibus (nunc in caule brevi) orbiculatis vel obovatis sublonge pe- tiolatis floccoso-lanatis ; panicula effuso-decomposita saepius maxime floribunda ; pedicellis mox deflexis lasvibus involucro campanulato 2 - 4-plo longioribus ; bracteolis setaceis brevibus subundis ; perigonii albi vel subrosei 6-fidi basi turbinata acuta segmentis exterioribus quadratis emarginatis retusis interiores oblonga dimidio angustiora vix superantibus. — Plains of the Platte to New Mexico and Utah. A span to a foot high ; the panicle in the larger plants very widely spreading and floriferous. Involucre at most a line long. Flowers barelv a line long when accrescent, often considerably less, smaller than any others of this sub-section, and well distinguished from all others of this section by the top-shaped base or tube, which is fully half the length of the segments and tapers to the narrow insertion. Var. tenue : panicula graciliore minus florifera ; pedicellis capil- laribus elongatis (3- 12 lin. longis), involucro minori vel tenuiori. — Nevada and Utah; foot-hills of the Humboldt and Wasatch Mountains, S. Watson, in Clarence King's Expedition. With just the flowers, &c. of E. cernuum, — this differs remarkably in the filiform looser OF ARTS AND SCIENCES : JANUARY 26, 1870. 183 and scarcely rigid divisions of the panicle; the ultimate ones or pedicels less refracted, sometimes a full inch in length, commonly half an inch, and therefore many times longer than the fewer-flowered involucre. -i— +~ Effusa, sa?pius ramosissima, pedicellis nunquam deflexis. In- volucra haud linea longora, interdum minuta, pauci-subpluriHora. Perigonium basi fere semper obtusissimum. Annua ; folia radi- calia vel subradicalia, rotundata, nunc basi cordata petiolata. ++ Subtus albo-lanata, supra plerumque floccosa. Perigonia involucro grossius 5 - 6-dentato haud longiora. Bractea2 sajpissime intus lanatre. a. Pedicelli breves (lin. 1-5 longi) cum panicula tota rigiduli. Perigonii glaberrimi segmenta maxime disparia. 65. E. rotundifolium, Benth. in DC. 1. c. Humile ; foliis supra mox denudatis ; panicula e collo ramosissima (spithamoea) rigidula floribunda; involucris late campanulatis subplurifloris ; bracteolis parce phimosis ; perigonio albo glaberrimo parum ultra medium 6-Jido, seg- ments exterioribus flabelliformi-dilatatis retusis, interioribus anguste oblongis. — Western borders of Texas and adjacent parts of New Mexico, "Wright, Bigelow, Thurber, Parry. Involucre seldom a line long, almost of the same breadth. Flowers three fourths of a line long, with a broadly campanulate base, and the outer segments much dilated upwards, so as to be usually much broader than long ; the inner ones small and narrow. b. Pedicelli tenues saepissime capillares, alares semi-sesquipollicares. Perigonia basi tenuiter pilosula vel glabra. Herbce tenellce, cyma 2-3-chotoma tenera cum scapo spithama?a, in depauperatis subsimplici; foliis lamina semipollicari seu minori. 66. E. Thurberi, Torr. Bot. Mex. Bound, p. 176. Foliis rotun- datis ssepius rugosis ; scapo 1 - 2-pollicari primum lanuloso ; bracteis 3 - 4-natis conspicuis calyculiformibus ; involucro late turbinato- campanulato 10-18-floro; bracteolis vix ullis; perigonio albo (fruc- tifero lineam longo) 5-partito basi brevi extus minutissime parceque hirsutulo, segmentis valde disparibus panduriformibus, exterioribus lobo terminali maximo rotundato (demum latiore quam longo) in centro tenuiter arachnifero, auriculis basim versus parvis, interioribus subhastato-lanceolatis parvulis superne vix dilatatis. — California, in sandy ravines near San Pasqual, Thurber. Los Angeles, Wallace. 184 PROCEEDINGS OF THE AMERICAN ACADEMY S. Arizona, near Camp Grant, Palmer. — The minute pubescence at the base of the perigonium, and the tuft of most delicate cobwebby hairs on the centre of the disk of the exterior segments, have been over- looked. Pedicels and involucre often obscurely viscid-glandular ; the latter a line long. 67. E. Thomasii, Torr. in Pacif. R. R. 4, p. 364. Foliis rotun- datis ovatisque ; bracteis ad nodos paniculas effusas minimis ; involucro paucifloro ; bracteolis paleaceis margine parce longe villosis ; perigonio albo vel flavido (vix semilineam longo) basi tenuiter hispidulo, seg- mentis disparibus subpanduratis sequilongis apice parum dilatatis obtusissimis, exterioribus basi latiore demum subcordatis, interioribus dimidio angustioribus sublineari-oblongis. — Fort Yuma, S. E. Cali- fornia, Gen. Thomas ; very slender specimens, not a span high, with almost capillary scape and panicle, also larger but less developed specimens: Fort Mohave (Fremont, locality not given), Cooper; larger specimens : Camp Grant, Arizona, Palmer ; very slender form. Invo- lucre little over half a line in length. 68. E. pusillum, n. sp. Foliis rotundis obovatisque in petiolum sa^pius angustatis ; bracteis parvulis quaternis ad nodos basique panicuke subsimplici ; involucro fere hemisphasrico 10 - 15-floro minu- tim glanduloso ; bracteolis obovatis spathulatisque inferne laxe ara- neoso-lanatis ; perigonio aureo (nunc purpureo tincto lineam longo (extus tenuiter glanduloso-puberulo profunde 5-partito, segmentis fere conformibus, exterioribus ovali-obovatis quam interiores oblonga paullo majoribus. — Foot-hills of Trinity Mountains, borders of the Truckee Desert, Nevada, S. Watson in C. King's Expedition. From two inches to a span high ; the involucre barely a line long. To this probably belongs a specimen from " Bearside Mountain " in the same region, coll. Newberry ; but the involucres are smaller and few-flowered ; the flowers, however, "yellow." 69. E. reniforme, Torr. in DC. 1. c. Foliis reniformi- vel cor- dato-orbiculatis dense mollissime albo-lanatis ; bracteis parvulis lanatis ; involucris late campanulatis haud glandulosis 8-12-floris; bracteolis prrecedentis ; perigonio ut videtur albo vel subroseo (semilineam longo) glabro, segmentis ovatis, interioribus paullo minoribus. — S. E. California, probably on the Mohave, Fremont. Fort Mohave, Cooper. Arizona, Palmer. All scanty and incomplete specimens. Involucre about a line long, sometimes seemingly much smaller and fewer- flowered. OF ARTS AND SCIENCES : JANUARY 26, 1870. 185 ++ ++ Folia pubescentia nunc glabrata, nunquam lanata vel to- mentosa ; petioli elongati. Perigonia flavula, extus crebre hirta, involucro minimo 4 - 5-fido paucifloro fere duplo longiora, seg- mentis conforrnibus subrequalibus. Bracteoe baud lanatae. Pani- cula e scapo rigidulo soepe fistuloso effuso-ramosissima, elatior, pedieellis divaricatis capillaribus tenuissimis (semi-ultrapollicari- bus) glaberrimis involucris multoties longioribus. 70. E. TRiCHOPODUii, Torr. in Emory, Rep. of Reconn. p. 151, 1848 (perperam E. trichopes), Bentb. in DC. 1. c. Foliis tenuiter pubescentibus vel supra glabris ovalibus rotundisve nunc subcordatis ; panicula3 ramis elongatis cum scapo brevi vel brevissimo rigidulis ; pedieellis tenuissimis ; involucro semilinea sagpius breviore ; perigonii segmentis ovato-lanceolatis. — S. W. Texas through New Mexico and Arizona to S. E. California. In the stronger specimens the scape is more or less fistulous, but not inflated, and, with the very branching panicle, from one to two feet high. 71. E. inflatum, Torr. in Frem. 2d Rep. & in DC. 1. c. Foliis hirsuto- seu velutino-pubescentibus nunc glabratis orbicularis vel ro- tundo-cordatis ; scapo elongato superne fusiformi-inflato ; panicu- lae ramis rigidulis inferne longe nudis, primariis raro inflatis ; pedi- eellis capillaribus ; involucro semilinea nunc subbreviori nunc longi- ori ; perigonii segmentis ovatis (demum lineam longis). — In dry or desert districts of California, Arizona, and Nevada. E. cordatum, Torr. in DC. 1. c. (of which the specimens are lost) is doubtless a glabrate and depauperate state of this species, or possibly of the fore- going. The two are disposed to run together. .n. ++ ++ Folia utrinque glabra (an glabrata?) ut tota planta. Peri- gonia involucro vix lineam longo paucifloro longissime pedicel- lato haud longiora. o 72. E. Gordoni, Benth. in DC. 1. c. Foliis subcoriaceis rotundis glabris ; pedunculis e radice pluribus brevibus in paniculam repetite dichotomam laxam divisis, ramis gracilibus ; pedieellis subcapillaribus ultrapollicaribus erectis ; involucro turbinato-campanulato 5-dentato ; perigonii glaberrimi (albi vel subrosei ?) segmentis exterioribus ovatis interiora oblonga paullo superantibus ; bracteolis minute glandulosis. — " In the Rocky Mountains on the Platte, Gordon," in herb. Hook. : found only by Gordon, and in specimens nearly past flowering. About vol. viii. 24 186 PROCEEDINGS OF THE AMERICAN ACADEMY a foot high, with sparse involucres. Fresh specimens of this little- known species are most desirable. The root plainly is not peren- nial. +. +_ +_ Minus ramosa nunc oligocephala, pcdicellis elongatis erec- tis. Involucra H-21 lin. longa, pluri-multiflora. Perigonium glabrum, basi brevi turbinata. Bracteae minima?. Bracteola? in involucro villosre. Perennia seu biennia, foliis baud cordatis, 73. E. tenellum, Torr. in Ann. Lye. N. Y. 2, p. 241. Caudice suffruticoso multicipiti csespitosum ; foliis confertissimis ovatis nunc rotundis longius petiolatis utrinque albo-tomentosis ; scapo seu pedun- culo ramis panicuke 2 - 3-dichotoma3 sparsis pedicellisque elongatis gracillimis lasvibus ; involucro turbinato-campanulato (1^-2 lin. longo) vix plurifloro ; perigonio petaloideo albo 6-partito, segmentis disparibus retusis vel emarginatis, exterioribus late obovatis seu orbiculatis quam interiora lineari-oblonga paullo breviora post anthesin conniventia multo majoribus. — Colorado, at the base of the Pocky Mountains to N. New Mexico and W. Texas. The original E. tenellum, which de- serves the name, is the smallest and most slender, wholly acaulescent form, coll. in Colorado and New Mexico by James, Emory, Fendler, Bigelow, and Parry ; the scape with the rather simple panicle hardly a foot high, the blade of the leaves less than half an inch long, the flower a line or in fruit a line and a half in length. Var. leptocladon, Benth. (W. Texas, Wright), is simply larger and more robust, the ampler and more compound panicle attaining a foot and a half or two feet in height. Var. caulescens (var. y. ramosissimum & E. phztyphyUum (Torr.), Benth. in DC.) : ramis e caudice lignescente adsurgentibus (4 - 10 poll, longis) foliosis; foliis srepe majoribus lamina nunc ultra semipol- licari ; panicula ampliore floribunda ; involucro et perigoniis fructiferis lin. l£-2 longis. — W. Texas, Riddell, Wright, Lindheimer, and Parry; specimens collected by the latter passing into the ordinary E. tenellum by the scapelike peduncle and small panicle. 74. E. ciliatum, Torr. in DC. 1. c. Radice bienni seu annua ; foliis radicalibus rosulatis obovato-spathulatis in petiolum marginatum attenuatis prater margines costamque barbato-ciliatos glabris ; scapo pedunculisque paucis elongatis ; involucro late campanulato multifloro (lin. 2 longo) ; perigonio atro-rubente crassiusculo 6-fido basi turbinato, segmentis ovatis acutis, interioribus post anthesin paullo angustioribus OF ARTS AND SCIENCES : JANUARY 26, 1870. 187 longioribusque. — Northern Mexico ; in the vicinity of Buena Vista, Edwards ; Monterey, Gregg. § 13. Pseudo-stipulata (Substipirfata), Benth. Flos basi obtusis- siraa cum pedicello articulatus, extus minute glandulosus. Ova- rium glabrum. Achenium acute triquetrum. Involucra soepius- que pedicelli Pedunculatorum. Caules ramosi foliati, sed folia rite evoluta semper secundaria, nempe in axillis caulinorum ad bracteas oppositas seu 3 - 4-nas stipukeformes redactorum gemina vel fasciculata. Embryo praBcedentium. Herbse. * Involucra sublonge pedicellata, multiflora, 5-dentata, dentibus bre- vibus latis. Flores in pedicellis brevibus baud ultra bracteolas exserti. 75. E. axgulosum, Benth. Eriog. p. 406, t. 18, f. 1. Annuum, floecoso-lanosum, demum glabrescens ; caulibus erectis in paniculam effusam repetito 2 - 3-chotomam divisis ; ramis acute 4 - 6-angulatis ; pedicellis filiformibus patentissimis ; foliis radicalibus spathulatis vel rotundatis, caulinis propriis bracteosformibus parvis stipulas brunneo- scariosas mentientibus, axillaribus geminis vel fasciculatis oblongo- linearibus lanceolatisque ; involucris brevi-campanulatis seu hemisphae- ricis minute glandulosis nunc fere laavibus ; fructiferis demum explana- tis bracteas internas (potius quam bracteolas) inferne lanigeras late spathulatas vix adaaquantibus ; perigonio roseo vel albo profunde 5- partito, segmentis exterioribus ovatis concavis, interioribus demum longioribus lanceolato-oblongis. — California and Nevada, apparently common. A span to a foot high, at length diffuse. Pedicels from six to twelve lines long. Flowers barely one line long, on slender internal pedicels which do not exceed the firm dilated bracts that subtend them ; the proper bractlets minute and capilary, and villose- plumose or often wanting. 76. E. Greggii, n. gp. Subpedale, e radice perenni erectum, pu- berulum, subglandulosum ; foliis radicalibus et fasciculorum spathulatis in petiolum marginatum attenuatis subciliatis glabellis (petiolis nunc parce hirsutis), caulinis 3 - 4-nis lanceolatis brevibus herbaceis in och- ream basi connatis ; pedicellis subracemosis erectis, inferioribus ultra- pollicaribus ; . involucro turbinato-campanulato ; bracteolis tenuibus hirsutis ; perigonio purpurascente profunde 6-fido, segmentis conformi- bus ovato-oblongis. — N. Leon, Mexico, on a high plain near San Juan de la Vaqueria, Gregg. Has been taken for a variety of E. ciliatum, 188 PROCEEDINGS OF THE AMERICAN ACADEMY (and is mentioned in DC. Prodr. in a note under that species) ; but it is very different. Flowering sterns rather simple and rigid, bearing fascicles of leaves in most of the axils. Involucre two lines long ; the larger of the contained bracts and bractlets lanceolate and scarious ; the others filiform. Pedicels of the flower apparently compressed, little exceeding a line in length, and about the length of the perigonium. * * Involucra alaria pleraque sessilia, minima, fere 5-partita, pau- ciflora. 77. E. divaricatum, Hook. Kew Jour. Bot. 5, p. 265 ; Benth. in DC. 1. c. Annuum, demissum, a basi divaricato-ramosissimum, minute pubescens ; foliis radicalibus ovatis spathulatisque longius pe- tiolatis, caulinis secundariis intra primaria parva stipulaaformia subu- lato-linearia geminis conformibus superne gradatim minoribus ; peri- gonii albidi segmentis oblongis subasqualibus. — Utah, on saline clayey soils, within the high calcareous hills of the Upper Colorado, Geyer. Less than a span high. Lamina of the leaf from six to three, or the ultimate ones only one or two lines long. Flowers little over half a line in length. All the developed leaves on the stem and branches appear to spring from within the stipule-like true cauline ones. § 14. Foliosa, Benth. Flos basi brevissima acutata vel obtusa perigonii 5-partiti cum pedicello exserto articulatus. Ovarium glabrum. Involucra 4-8-fida vel partita, nunc in pedicellis paniculata vel subraceraosa modo Pedunculatorum, nunc in dicho- tomiis sessilia. Caules fbliosi : folia caulina rite evoluta, opposita seu verticillata (ima tantum alterna) et in axillis fasciculata. Embryo prcecedentium. Herba3 annuse. * Salsuginosa : involucri phylla fere discreta inaequalia. Perigo- nium fructiferum achenio acutissime triquetro arete conforme. 78. E. salsuginosum, Hook. Kew Jour. Bot. 5, p. 264. Glabrum, diffuso-ramosissimum, usque ad apicem foliosum ; foliis subcarnosis, imis spathulatis oblongisve, superioribus linearibus ; involucris alaribus sessilibus paucisve ramulos seu pedunculos filiformes terminantibus paucifloris e bracteis linearibus basi subcoalitis vel discretis ; floribus subsessilibus ; perigonio subherbaceo extus minute hirtello, segmentis oblongis subtequalibus apice tantum scariosis. — Utah, in the Rocky Mountains near the sources of the Colorado, on saline clayey soils, OF ARTS AND SCIENCES: JANUARY 26, 1870. 189 Nuttall, Geyer. An inch to a span high. Perigonium in fruit barely a line long. * * Rumiciflora: involucra plus minus pedunculata, multiflora, profunde 5 - 8-fida, lobis linearibus foliaceis. Perigonii peta- loidei segmentis disparibus, exterioribus basi cordatis. Folia inferiora lata. 79. E. Abertianum, Torr. in Emory, Reconn. ; Benth. in DC. 1. c. Yillosum seu laxe molliterque pubescens, paniculato-ramosum ; ramis fere ad apicem saspius foliatis erectis; foliis inferioribus ovatis vel subcordatis longius petiolatis ssepius undulatis, ramealibus lanceo- latis linearibusve subsessilibus ; pedunculis alaribus inferioribus ple- rumque gracilibus, superioribus involucro sequilongis vel brevioribus ; perigonii glabri rosei segmentis exterioribus orbiculatis sinu profundo clauso cordatis quam interiora lineari-oblonga subpandurata apice retusa multo latioribus. — W. Texas (Wright) to Chihuahua, Arizona, &c. : apparently common. A span to a foot high, very variable in size, foliage, &c. The enlarged exterior segments of the perigonium become nearly two lines long, the lobes at the deeply cordate base cov- ering the small and narrow tube of the perigonium. * * * Spergulina: involucra effuso-paniculata in pedicellis lasvibus capillaribus, parva, pauciflora, 5 - 8-fida. Perigonia petaloidea, segmentis haud cordatis. Caules gracillimi, internodiis elongatis : folia caulina angusto-linearia, marginibus nunc revolutis. 80. E. pharnaceoides, Torr. in Sitgreaves Rep. p. 167, t. 11, & in DC. 1. c. Pubescens ; foliis subtus cano-tomentosis supra glabres- centibus ; involucris 5 - 8-fidis 8-12-floris; bracteolis filiformibus villosis ; perigonio glabro albo vel roseo, segmentis exterioribus latis- sime ovatis concavis, fructiferis basi bigibbosis quam interiora oblongo- linearia retusa brevioribus ; antheris nigricantibus. — New Mexico and Arizona, Wright, Bigelow, Sitgreaves, Thurber, Coues and Palmer. Commonly about a foot high ; with leaves about an inch long and a line or less in width. Pedicels one or two inches, and involucre one or two lines long. Perigonium when accrescent a little over a line in length. 81. E. spergulinum, Gray in Proceed. Amer. Acad. 7, p. 389. Tenuius ; foliis cum basi caulis parce hirsutis glandulosisque utrin- que viridibus ; panicula magis eflfusa, pedicellis tenuissimis ; involu- 190 PROCEEDINGS OF THE AMERICAN ACADEMY cris minimis 4-fidis sesquifloris glabris ; bracteolis nullis ; perigonio albo basi pilosulo, segmentis asqualibus cuneato-oblongis, exterioribus obtusis vel retusis, interioribus apice truncato pi. m. eroso-tridentatis. — California, in the Mariposa Grove, &c, Bridges, Brewer, Bolan- der. Nevada, Anderson, Bloomer. Pedicels seldom more than an inch long, truly capillary. Involucre only half a line, but the flower a line or with age a line and a half long : usually only one is de- veloped, but there is always a rudiment of a second flower. Ache- nium lenticular. 3. OXYTHECA, Nutt. p. p., Benth. in DC. 1. c. Involucrura pauciflorum, cyathiforrae, 4-fidum, lobis aristatenui su- perlatis. Flores, bracte'ola?, etc. Eriogoni. Achenium lenticulare. Radicula longa cotyledonibus orbiculatis accumbens. — Annua?, Cali- fornia?, unica e Cordilleras Chili et Mendozre, divarieato-ramosissima>, laxiflorre, ramis teneribus glandulis parvis pedicellatis hinc inde con- spei-sis. — Genus Eriogono proximum, nunc speciebus novis confir- matum. * Tnvolucra omnia pedicellata ; pedicellis alaribus saltern inferioribus gracillimis nudis. Folia bracteasque tantum mucronatse. 1. 0. dendroidea, Nutt. PI. Gamb. p. 169; Benth. 1. c. Effuse cymoso-ramosissima ; foliis radicalibus lanceolatis seu lineari-lanceolatis hirsutulis, caulinis bracteisve gradatim diminutis basi nunc subconnatis; aristis involucri soepe inoequalibus. — Forma tenuior floribunda est Brisegnoa Chilensis, Remy in Gay Fl. Chil. 5, p. 292, tab. 58, et Tetraraphis apiculata, nunc Oxytheca apiculata, Miers. Forma vege- tior magis foliata, floribus sparsis, O.foliosa, Nutt. 1. c. — This larger foliose form was collected in Nevada near Empire City by Dr. Torrey, and recently, in Clarence King's Expedition, by S. Watson, who also gathered in abundance in the Douglas Range, Nevada, a very slender and exceedingly floriferous form, quite like the South American. All Nuttall's specimens we have seen are intermediate between the two. The involucres vary from half a line to nearly a line in length, not counting the awn, upon the length of which no dependence can be placed. * * Involucra subsessilia vel bracteis plus minus connatis suffulta. OF ARTS ANB SCIENCES: JANUARY 26, 1870. 191 2. O. Watsoni, n. sp. Effuse ramosissima; foliis radicalibus spa- thulatis pubescentibus ; bracteis ovatis seu ovato-lanceolatis basi tan- turn soepius hinc connatis, superioribus decrescentibus lobisque involucri aristis suis rigidis dimidio brevioribus. — Monitor Valley, Nevada, Sereno Watson in C. King's Expedition, July, 18G8. A span to ten inches high. Radical leaves an inch or more long, much broader and blunter than those of the foregoing species. Lower bracts about two lines long, rigid, mostly decurved, their bases commonly connate on one side. Pedicels not more than half a line long, about the length of the body of the involucre they support, or when apparently lengthened then bibracteolate near their apex : the awns of these upper bracts and of the about three-flowered involucre a line and a half or two lines in length. Fruit not seen. 3. 0. perfoliata, n. sp. Chorizanthis perfoliatce admodum similis, demissa, divaricato-ramosissima ; foliis glaucescentibus (srepe rubentibus in sicco chartaceis), radicalibus spathulatis, caulinis bracteisve sursum vix decrescentibus (internodio dimidio brevioribus), in centro perfoli- atis disciformibus subtrigono-orbiculatis venulosis triaristulatis ; invo- lucris in dichotomiis sessilibus solitariis, lobis subulato-lanceolatis aristis suis aequilongis. — Nevada, Fremont, second Expedition. Unionville, Humboldt, and Truckee valleys, on the borders of the desert, May to July, 1868, S. Watson in C. King's Expedition. A most remarkable species, uniformly leafy to the tips of the branches, or only the latest eauline or rameal leaves or bracts much reduced in size : these are all centrally perfoliate disks, from half an inch to nearly an inch in diam- eter, manifestly composed of a whorl of three wholly connate leaves, the slender short awns answering to their tips ; at the first fork, how- ever, there is commonly an involucre-like whorl of three or four small leaves, connate only at the base. Involucre a line and a half long ex- clusive of the rigid awn, which is a prolongation of a much more con- spicuous costa than in the other species. Flowers from four to six, conspicuously pedicellate. Perigonium pubescent, its segments ovate and acute. Achenium turgidly ovate-lenticular, pointed : cotyledons thickish. 4. CENTROSTEGIA, Gray in DC. 1. c. Involucrum 1— 3-florum, tubulosum, 5 - 6-de'ntatum, basim juxta 3 — 6-calcaratum, calcaribus divaricatis dentibusque cuspidatis seu aristatis. Flores, fructus, etc. Chorizanthis ; foliato et inflorescentia 192 PROCEEDINGS OF THE AMERICAN ACADEMY laxa sect. Mucronece. — Annua?, Californica?, demissas, fere glabrae, foliis radicalibus spathulatis, ramealibus bracteisve saepius trifidis, lobis aris- tulatis, involucris subsessilibus. Genus inter Chorizanthem (Mucro- neam) et Oxythecam. 1. C. Thurberi, Gray, 1. c. Glabra; involucro 1 - 2-floro char- taceo venuloso apice tantum 5-dentato, costis baud prominulis, cal- caribus 3 grossis conicis dentibusque ovatis breviter cuspidatis ; peri- goniisegmeutis lineari-spathulatis basin versus hirsuto-ciliatis. (Embryo incurvo-excentricus, radicula longa.) San Felipe, Thurber, who alone has met with it. 2. C. leptoceras, Gray in herb. Kew. Glabella ; ramis divaricatis; involucro hirsutulo 2 - 3-floro 6-fido, dentibus lanceolato-subulatis aris- tatis (arista unico longiore), calcaribus 6 aristiformibus apice uncinatis tubo dimidio brevioribus ; perigonii segmentis ovalibus dorso parce pilosis. — Plains of San Gabriel, Lobb in herb. Kew. 5. CHORIZANTHE, R. Br. Involucrum uniflorum, gamophyllum, basi inappendiculatum, tubo saepius angulato vel costato, dentibus lobisve 2-6 fere semper cuspide vel arista terminatis ssepius inaequalibus. Flos inclusus vel parum exsertus, in involucro subsessilis seu breviter pedicellatus. Perigoniura tenue vel corollinum, 6-lobum vel 6-partitum. Stamina 9, raro 3 vel 6. Achenium trigonum. Embryo Eriogoni, nunc rectus cotyledonibus angustioribus, nunc incurvo-excentricus vel cotyledonibus latis radicular pi. m. accumbentibus. — Plantar humiles, involucris sessilibus cymoso- congestis vel sparsis, foliis oppositis verticillatisque seu inferioribus saapius alternis. — Ghorizanthe & Mucronea, Benth. Eriog. & in DC. 1. c. Acanthogomim, Torr. § 1. Euchorizanthe. Involucrum tubulosum, 6-dentatum, 6- costatum, angulatum, saspius coriaceum, costis validis in cuspidem vel aristam sajpius pi. m. uncinatam excurrentibus. Stamina juxta basim perigonii 6-lobi inserta. Folia nunquam cordata, integra, saltern caulina angusta basi attenuata. * Annua?, Californica;, Scariosce, nerape iuvolucris in glomerulas capituliformes congestis, limbo pi. m. albo-scarioso (necnon praa- cocibus vegetioribus in dichotomiis pi'imariis solitariis ex toto herbaceis). OF ARTS AND SCIENCES: JANUARY 26, 1870. 193 -i— Involucri limbus omnino prater costas petaloideo-scariosus, rotato- expansus, breviter 6-lobus. Caulis erectus : capitula densa. 1. C. membranacea, Bentb. Eriog. 1. c. p. 419, t. 7, f. 1. Arane- oso-lanata ; foliis bracteisque conformibus linearibus mucrone debili ; capitulis solitariis paucisve secus ramos subsimplices dissitis, fructiferis iis Scabiosarum similibus ; involucro prater basim et costas validas in aristularn excurrentes prorsus scarioso, limbo maxime dilatato. — Not rare in California ; a most marked species. 2. C. stellttlata, Bentb. PI. Hartw. no. 1937. Hirto-pubescens, fastigiato-ramosa ; foliis eaulinis fere linearibus ; bracteis acerosis pungenti-aristulatis pilis rigidioribus birsutis ; capitulis subcymosis ; involucri tubo angusto insigniter ?equaliter 6-costato (lin. 2 longo), limbo abrupto prater costas validas in aristularn excurrentes toto albo- scarioso quadruplo longiore ; perigonii segmentis obcordato-bilobis ; antheris oblongo-linearibus. — Known as yet only in Hartweg's collec- tion from the valley of the Sacramento. 3. C. Douglasii, Benth. Eriog. 1. c. Humilis, villoso-pubescens ; foliis eaulinis spathulatis seu spathulato-lanceolatis ; bracteis acerosis pungentibus ; capitulis saepius umbellatis globosis ; involucri circa lin. 2 longi tubo intequaliter angulato limbo brevi abrupto (albo vel roseo) cum aristis subulatis inrequalibus 2 - 3-plo longiore ; perigonii seg- mentis apice truncatis subcrenulatis ; antheris lineari-oblongis. — The genuine C. Douglasii has apparently been collected only by Douglas, and lately by Prof. Brewer, — by the latter on very dry hills in Santa Margarita Valley, sparingly and in depauperate specimens. The expanded scarious limb of the involucre, when not torn down, is angulate-lobed in the manner of the preceding, i. e. the stout costa? which project as awns are connected high up by the scarious mem- brane. Bentham's var. Hartioegi must be united to C. pungens. h— -t— Involucri limbus 5-partitus, nempe dentibus ad faucem usque discretis aut margine aut fere toto albo-scariosis. Caules laxi, a basi ramosi, saepius difFusi ; pube plus minus villosa : capitula plerumque irregulariter paniculata : bracteas pungenti-aristatae, supremse aristiformes. — Adsunt fere semper involucra pauca pracociora solitaria dentibus accrescentibus herbaceis immar- ginatis. 4. C. diffusa, Benth. PI. Hartw. no. 1938. Pilosula, tenella; foliis plerisque radicalibus spathulatis seu oblongo-ovatis (cum petiolo 4-12 VOL. VIII. 25 194 PROCEEDINGS OF THE AMERICAN ACADEMY lin. longis) ; glomerulis parvis laxiusculis ; involucro haud ultra lineam longo, dentibus ovatis prater costam toto scariosis cum aristis (1-2 multo majoribus tubura adrequantibus) insequalibus ; antheris ovalibus. — Monterey, on dry and sandy plains, Hartweg ; near tbe sea- beach, Parry (in herb. Torr.), the specimens of the latter less pubescent and more floribund. 5. C. pungens, Benth. Eriog. 1. c. t. 19. Molliter hirsuto-villosa ; caulibus plerumque diifusis ramosis inferne foliatis ; foliis spathulatis vel sublanceolatis ; glomerulis irregularibus ; involucro (lin. 1 J- 2^ longo) dentibus basi herbaceis nunc latissime nunc angustius scarioso- marginatis ovatis nunc ovato-subulatis ina^qualibus, majoribus bracteis- que longius pungenti-aristatis ; antheris oblongis. — Apparently the commonest species along and near the coast of California, and most variable in size ; the larger forms coarse, with the thickish stems or branches a foot or two long ; the depauperate forms slender, sometimes no more than two or three inches high. The scarious margins of the teeth of the involucre are commonly very broad and thin, but occa- sionally narrow and inconspicuous in the dry state. C Douglasii, var. Hartwegi, Benth. in DC. (C. nudicaulis, Benth. PI. Hartw. no. 1935, non Nutt.) is one of the stout and more upright forms of this species, with broad and rounded scarious teeth, distinct, however, quite to the base. O. angustifolia, \Nutt., Benth. in DC, is one of the depauperate forms of G. pungens. * * Annuse, Californicaa cum unica Chilensi, immarginatce, dentibus involucri ex toto herbaceis vel coriaceis saspe corniformibus, sinu- bus tantum scariosis. +- Cymoso-confertifloroe, involucris in cymulis glomerulisve confertis cum alaribus solitariis in dichotomiis. Stamina (spec, ultima ex- cepta) 9. ++ Perigonii segmenta infra apicem pectinato-fimbriata. Erectae, scaposa?, pedunculo nudo in cymam repetito- 2-3-chotomam diviso, foliis omnibus radicalibus spathulatis ovalibusque, bracteis aceroso- subulatis, flore in involucro sessili. 6. C. laciniata, Torr. in Pacif. R. R. 7, Bot. p. 19. Nana, sub- villosa ; cyma floribunda ; involucri dentibus subulato-aristatis fere sequalibus tubo 2 - 4-plo brevioribus ; perigonio involucro duplo longi- ore, segmentis triangulari-lanceolatis longe crebreque fimbriatis apice OF ARTS AND SCIENCES : JANUARY 26, 1870. 195 caudatis. — San Felipe, California, Dr. Antisell, in Parke's Expedi- tion. The beautifully fringed and conspicuously tail-pointed seg- ments of the perigonium are commonly exserted two lines beyond the orifice of the involucre. 7. C. fimbriata, Nutt. PI. Gamb. p. 1G8 ; Torr. in Pacif. R. R. 5, Bot. t. 8. Humilis, subvillosa vel glabella ; involucri dentibus validis subulatis aristatis tubo paullo vel dimidio brevioi'ibus ; perigonio minus exserto, segmentis infra apicem oblongum obtusum irregulariter lacero-fimbriatis. — Abundant on dry hills near San Diego, Nuttall, Parry, Thurber, &c, and east to the Mohave River, Thomas, Cooper, &c. This was collected by Botta many years ago, from whose speci- mens, preserved at the Jardin des Plantes, a drawing was long ago made by Decaisne and engraved for Mirbel, who was to have pub- lished Botta's collection. •n- -n- Perigonii segmenta integerriina vel apice tantum crenulata. Caules subundi. 8. C. staticoides, Benth. Eriog. 1. c. Erecta (bipollicaris ad pedalem) ; foliis plerisque radicalibus spathulatis oblongis rotundisve hirsutulis subtus plerumque tomentosis ; cyma effuse corymbosa ; invo- lucri dentibus subulatis breviter aristatis seu aristulatis, inrequalibus, majorihus tubo angusto 2 - 3-plo brevioribus. — G. nudicaule & C. dis- color, Nutt. 1. c. From San Luis Obispo and Santa Barbara County, Brewer, Torrey, to San Diego, Nuttall, &c, and Fort Tejon, Xantus (published as C. procumbens). 9. C. proctoibens, Nutt. 1. c, Benth. in DC. Demissa, sub- hirsuta ; foliis spathulatis ; ramis (poll. 2-4 longis) diffusis vel de- cumbentibus ; cymulis irregularibus paniculatis ; involucri dentibus corniformibus subulato-aristatis, 2-4 majoribus tubo parum brevi- oribus. C. uncinata, Nutt. 1. c. — San Diego, &c, Nuttall, Thurber, Blake. A depressed plant, very fragile with age, and the awns more constantly uncinate than in related species. Tube of the involucre barely a line long. 10. C. uniaristata, n. sp. Diffusa, pube molli subcinerea ; foliis spathulatis subtus piloso-pubescentibus ; cymulis laxiusculis ; bracteis aristatis ; involucri dentibus corniformibus, unico arista recta valida tubo brevi-oblongo paullo vel subduplo longiore, ceteris cuspide brevi superatis ; staminibus 3. — New Idria, California, in very dry places, Brewer. Achenium slender. Embryo straight or very 196 PROCEEDINGS OF THE AMERICAN ACADEMY slightly incurved : cotyledons linear-oblong, nearly twice the length of the radicle. ■h- J— Paniculato-laxiflora?. Stamina 3 — 6. 11. C. brevicornu, Torr. Bot. Mex. Bound, p. 177. Cinereo- puberula, subspithamrea ; foliis plerisque radicalibus nunc linearibus nunc obovato-spathulatis ; bracteis parvulis uncinato-mucronatis ; invo- lucris angustis prismaticis secus ramos subsimplices panicute plerisque dissitis, dentibus subasqualibus subulato-aristulatis recurvis tubo (lin. 2 — 3 longo vix semilineam lato) 3 - 5-plo breviore ; perigonii lobis integerrimis ; starninibus 3. — S. E. California to the Gila and Ne- vada, Fremont, Parry, Newberry, Watson, the latter from Truckee Valley, near the desert, and different from other specimens in the spatulate-obovate instead of almost linear leaves. No well-developed or exserted flowers seen. 12. C. COmmissuralis, Remy, Fl. Chil., the only annual species not North American, is most related to G. brevicornu, is similar in habit and inflorescence, and in the narrow involucre, but is more downy. The flowers examined have six stamens, and are not quite sessile in the involucre. Embryo straight; cotyledons narrow. * * * Perennes suffrutescentes, Chilenses, involucris corymboso- glomeratis, dentibus herbaceis quandoque muticis. 13. C. virgata, Benth., 14. C. pedunctjlaris, Benth., 15. C. Macr^ei, Benth., 16. C. ramosissima, Benth., 17. C. paniculata, Benth., 18. C. vaginata, Benth., 19. C. frankenioides, Remy, 20. C. glabresceks, Benth.; vide DC. Prodr. 14, p. 24. Of these Chilian perennial species we have nothing to remark. Most of them have a pretty long cylindraceous tube to the perigonium, on which the stamens are borne either below the middle or near the base. § 2. Mucronea. Involucrum 2 - 4-quetrum, 2 - 4-lobatum, char- taceo-coriaceum, lobis herbaceis arista recta superatis. Stamina 9, basi perigonii 6-partiti inserta. Annua?, Californica?, nunquam tomentosaa, divergenti-ramosissima?, involucris in dichotomiis et secus ramulos graciles paniculatos sparsis, foliis in sicco perga- maceis, caulinis bracteisque conformibus sursum sensim minori- bus amplexicaulibus pi. m. stellato-trilobis, lobis cuspidatis vel aristatis. Flos in involucro breviuscule seu longiuscule pedicel- latus. OF ARTS AND SCIENCES : JANUARY 26, 1870. 197 21. C. perfoliata, Gray in Proceed. Bost. Soc. Nat. Hist. 1860. Hirsutula, subglandulosa seu glabella ; foliis caulinis perfoliatis ; invo- lucro tetraquetro quadridentato, dentibus breviter inoequaliter subulato- aristatis ; perigonii segmentis versus apicem laciniatis. (Embryo rec- tus.) — Fort Tejon, California, Xantus. On very dry rocky bills, near San Luis Obispo and Mt. Oso, Brewer. " Wbole plant turning bright scarlet." 22. C. Californica, Gray, I. c. Hirsutior ; foliis caulinis am- plexicaulibus, superioribus alte trilobis ; involucro compresso ssepis- sime bilobo subasqualiter biaristato, rarius 3 - 4-quetro aristis additis brevioribus; perigonii segmentis integerrimis. Mucronea Californica, Bentb. Eriog. p. 416, t. 20. — Found, so far as we know, only by Douglas, Nuttall, and Parry, and only in the vicinity of San Diego. In Parry's specimens the angles and teeth of the involucre are com- monly three or four. § 3. Acanthogonum. Involucrum 3 - 5-dentatum seu lobatum, coriaceum, tubo transverse venuloso vel corrugato, lobis inas- qualibus immarginatis. Stamina 6-9, fauci perigonii 6-lobi in- serta : fllamenta brevia : anthers breves. Annua?, Californica?, nana?, foliis ovatis spathulatisve integris petiolatis muticis, involu- cris pi. m. glomeratis. Flos in involucro pedicellatus, tenuiter bracteolatus. The genus Acanthogonum, Torr., seemed to rest securely upon its three-lobed and angled involucre, the faucial insertion of the stamens, and the remarkable spiny bracts. But a second species was after- wards added with a tei*ete involucre ; and now we must associate with these two others which in different ways connect with Chorizanthe, leaving only the character of the insertion of the stamens, — which, moreover, in A. corrugatum, is not quite so high as in the others, while in some Chilian species of Chorizanthe they are borne rather far up on the tube. * Involucrum late triquetrum, tricostatum, dentibus lobisve 5: brac- teae innocuae. 23. C. polygonoides, n. sp. Diffuso-rauiosissima, depressa, laxe hirsuto-pubescens ; foliis bracteisque spathulatis petiolatis muticis, summisve minimis tantum mucronatis ; involucris laxius paniculato- glomeratis demum induratis obpyramidato-triquetris tricostatis, lobis 3 triangulato-subulatis in aristam spinescentem apice subhamatam desi- 198 PROCEEDINGS OP THE AMERICAN ACADEMY nentibus cum 2 intermediis parvis vel minimis; staminibus 6, filamentis brevissimis. — " Reservoir Hill," Placerville, California, Mr. Rattan. An insignificant weedy plant, three or four inches high, the branches when old fragile at the joints, as in many other species, in habit resem- bling O. procumbens. Fruiting involucre with its broadly obpyramidal tube a line and a half long, glabrate ; the longer and widely divergent lobes with the pungent stout awn about the same length, or even longer; the two intermediate and much smaller pungent-pointed teeth not arising from any obvious costal. Tube of the perigonium cylindraceous ; the stamens some of them opposite and some alternate with the lobes. Achenium and seed ovate-pyramidal. Embryo as in the following. * * Involucrum trigonum, 6-costatum, trifidum : bracteae spini- formes. 24. C. rigid A. P)rgmpea,primum lanata; caule Q--2-pollicari) parum ramoso demum crassiore lignescente ; foliis ovatis seu obovatis subtus albo-tomentosis longe petiolatis ; involucris in axillis sessilibus solita- riis vel confertis bracteis elongatis aristreformibus seu lanceolatis spinescenti-cuspidatis demum induratis suffultis, lobis 3 inaaqualibus ovato- seu triangulari-lanceolatis cuspide spinescente recta terminates tubo brevi-campanulato (majore duplo) longioribus ; perigonii tubo cylindraceo basi obtuso ; staminibus 9. Acanthogonum rigidnm, Torr. Pacif. R. R. 4 (Bot. Whipp.), p. 132, & 5, p. 365, & Bot. Mex. Bound, p. 177 (excl. ref. "tab. 8"). — On the desert of S. E. Califor- nia and the neighboring parts of Arizona and New Mexico, Bigelow, A. B. Gray, Thomas, Newberry, Cooper, Parry ; also Nevada as far north as Truckee Valley, Watson. The older plants horrid with the tufted bracteal spines, of which the larger are about an inch in length. Stamens perhaps always 9. The older involucres thin and scarious between the reticulations. Cotyledons orbicular, accumbent on the base of the slender curved radicle. * * * Involucrum tubo tereti angusto, costis obsoletis, dentibus 3 vel 5 cum bracteis parvulis breviter cuspidatis. Herbse exiles, caule 1 - 3-pollicari demum subcymoso-ramoso. 2o. C. corrugata. Albido-lanata ; foliis ovatis seu ovali-rotun- dis longe petiolatis ; involucris demum subcymosis, lobis 3 ovato-lan- ceolatis cum bracteolis herbaceis cuspide recurva apiculatis tubo subcla- vato eximie corrugato (fructifero fere tuberculato) sublongioribus; tubo perigonii basi attenuato ; staminibus 6 — 9. Acanthogonum corruga* OF ARTS AND SCIENCES : JANUARY 26, 1870. 199 tinn, Torr. Pacif. E. R. 5, p. 364. — In the same district as the preced- ing, near Fort Yuma, Gen. Thomas. Tube of the involucre nearly two lines long, cylindrical with an attenuated base. 26. C. Watsoni, n. sp. Canescenti-pubescens ; foliis angusto- spatbulatis lanceolatisve ; involucris subsparsis paniculatis, dentibus 5 valde ina?qualibus cum bracteis parvulis aceroso-subulatis cuspide recurva superatis, unico (rarius duobus) majori seu foliaceo-ampliato tubo cylindrico pedicelliformi la?vi nunc subrequilongo, caeteris subulatis parvis ; tubo perigonii cylindrico ; stamiuibus 9 ; embryone recto, coty- ledonibus linearibus radicula longioribus. — Nevada, on the borders of the desert, Humboldt, Reese-River, and Grass valleys, Torrey, Stretch, C. Watson in Clarence King's Expedition. Leaves small. Involucre one and a half or at length two lines long, most of the five teeth about half a line long, but the enlarged foliiform one oval, oblong, or lanceo- late : sometimes two or three of them are more or less accrescent. Flower on a slender pedicel. Seed linear-subulate. Cotyledons re- markably long and slender. 6. LASTARRLEA, Remy. Involucrum nullum. Flores cymoso-glomerati : perigonium coriaceo- herbaceum, 6-dentatum, involucrum Chorizanthis admodum simulans, dentibus subulatis cuspide recurva uncinata terminatis. Stamina 3, fauci perigonii inserta, lobis interioribus opposita, brevia, utrinque dente membranaceo seu filamento sterili comitata. Ovarium sessile. Ache- nium triquetrum. Embryo subarcuatus, cotyledonibus angustis, ra- dicula longioribus. — Herbula annua multicaulis, foliis linearibus, floralibus bracteisve oblongis seu lanceolatis verticillatis cuspide recurva uncinata armatis tenacibus. 1. L. Chilensis, Remy in Gay, Fl. Chil. 5, p. 289, t. 58, f. 1 ; DC. Prodr. 14, p. 186. Chili, Bertero, Gillies. — California, J. Blake: station unknown ; but probably introduced at some time from Chili, perhaps in the fleece of sheep and cattle, as the hooked cusps or short and stout awns of the bracts and calyx are tenacious, and the joints very fragile. 7. PTEROSTEGIA, Fischer & Meyer. Involucrum monophyllum ! tenue, primum florem sessilem fulcrans eodemque brevius, rotundatum, pi. m. bilobum, fructiferum valde am- pliatum, scariosum, achenium laxe amplectens, vesiculosum, reticula- 200 PKOCEEDINGS OF THE AMERICAN ACADEMY turn, dorso bigibberoso-saccatum. Perigoniuin 6- (raro 5-)partitum, segmentis oblongo-lanceolatis requalibus. Stamina segmentis perigonii numero requalia, basi eorum inserta, quandoque pauciora. Acbeuium triquetrum. Embryo in albumine carnoso vel farinoso copioso excen- tricus, cotyledonibus orbiculatis radicular accumbentibus. — Herbas an- nua^ Californicae, caulibus tenuibus dicbotomo-ramosissimis diffusis, foliis oppositis, inferioribus s*pe bilobis lobis nunc iterum 2-3-lobatis, superi- oribus quandoque pi. m. crenulato-denticulatis; involucris primum mini- mis terminalibus alaribusque subsessilibus ; floribus flavidulis parvis. The involucre has been, as we suppose, wrongly described as di- phyllous. It is rightly said by Hooker (in Bot. Beechey) to be " two- lobed." These lobes may answer each to one of a pair of leaves, like the cauline, but united on one side, in a manner sometimes observed in the bracts of Oxytlteca ; but we are confident that the whole rather answers to a single bracteolar leaf, which is two-lobed after the fashion of the lower cauline leaves ; and so is homologous (not with the invo- lucre of Eriogonum but) with a bractlet in Nemacaulis* Bentham's view (in Bot. Sulph. & DC. Prodr. 14, p. 27), first, that there are a pair of these involucral leaves, and second, that each is composed of three leaves, the contiguous margins of which expand into the dorsal wings or crests, is most of all untenable. These crests are gibberosities, one for each lobe, sometimes shallow or inconspicuous, sometimes very deep and large, and crest-like or wing-like. 1. P. drymarioides, Fischer & Meyer, Ind. Sem. Petrop. 2, p. 23, & Sert. Petrop. fasc. 3, tab. fol. ; Hook. & Arn. Bot. Beech, t. 90. Tenella, pilosulo-pubescens ; foliis inferioribus longe petiolatis flabelli- formibus obcordato-bilobis seu emarginatis nunc bis bilobis, superioribus ramealibusque rotundatis obovatis spathulatisque haud raro crenulato- denticulatis ; involucro fructifero (lin. l~13rlongo) profundius bilobo margine dentato vel laciniato. P. microphylla, diphylla, & var. biloba, Nutt. PI. Gamb. 1. c. — Common in California along the coast : very variable. 2. P. macroptera, Benth. Sulph. p. 44. Major, rigidior ; ramis junioribus cano-pubescentibus ; foliis (ramealibus) spathulatis integer- rimis subcarnosis vix petiolatis ; involucro fructifero (semipollicari) margine sinuato. — Bay of Magdalena, Lower California, Hinds. * Payer, who in his Organogenie, tab. 64, has well shown its development, we find, takes a similar view. OF ARTS AND SCIENCES: FEBRUARY 8, 1S70. 201 Six Hundred and seventeenth Meeting. February 8, 1870. — Monthly Meeting. The President in the chair. The President called the attention of the Academy to the recent decease of Overbeck, at Rome, of the Foreign Honorary Members. Dr. E. H. Clark made a communication on the results of an analysis of one thousand cases of disease in general practice, as to the curative action of drugs. Dr. Bowditch made a communication, illustrated by a chart, on the apparent connection of cloudy days and mortality from consumption, for the period from 1811 to 1857, and in this vicinity. Two papers by Mr. G. W. Hill were presented at the meet- ing of December 11, 1869. The following problem seems to possess some interest, and I have not, in my reading, met with any discussion of it : — To determine the elements of the orbit of a planet or satellite, which moves in a circle in the plane of the ecliptic, from three obser- vations of its direction from the earth, made at equal intervals of time ; the positions of the earth and the central body at these times being known, but the sum of the masses of the central body and the planet or satellite being unknown. Or, geometrically stated, — In a plane, given a point as centre and three straight lines, required to describe a circle, so that the arcs intercepted between the first and second, and the second and third, lines may be equal. Let generally R denote the distance of the central body from the earth ; " " L its longitude as seen from the earth ; " " r the radius of the orbit of the planet ; " " A its longitude as seen from the earth ; " " x its longitude as seen from the central body. Moreover, employ the subscripts (_-,) , (0) , (x) , to denote the special values of the above quantities, which have place respectively at the three times of observation in their order. VOL. VIII. 2fi 202 PROCEEDINGS OF THE AMERICAN ACADEMY If a perpendicular be let fall from the central body on the straight line which joins the earth and the body whose orbit is to be deter- mined, its length is obviously Ji sin (X — L) ; another expression for the length of the same line is rsin (x— *X). Hence for the three times of observation, the three equations r sin (x_i — X_0 = #_i sin (X_1—L_1), r sin (xo — *o) = ^o sin (X0 — L0), r sin (xi — X:) = i?x sin (Xx — Lx). But since the orbit is circular, x increases uniformly with the time, and consequently xo — X-i = Xi — Xo = V suppose. Thus the above equations may be written r sin (xo — n — X_j) = I2_1 sin (X_x — Z_j) = a_v r sin (Xo — X0 ) = ^o sin (X0 — L0 ) = a0, r sin (x0 + rj — Xx) = Rx sin (Xx — Lx ) = ax, which serve to determine the three unknown quantities r, xo> and 77 ; and it will be noticed that their right-hand members are known quan- tities. If the sum of the masses of the central body and the body whose orbit is sought is denoted by /z, and the common interval of time be- tween the observations by t, thus, if ft were known, two observations would suffice to determine the orbit ; but if fi is not known, 77 must be regarded as an independent unknown quantity. Hence the necessity for the restriction put at the end of the statement of the problem. Also by this restriction the problem is made to depend on the solution of an algebraical equation instead of a transcendental one. The equations can be simplified by taking two unknown quantities, <•> and a, instead of xo ar>d q, such that Xx + X_! = Xo — 2 Xi-X_i OF ARTS AND SCIENCES : FEBRUARY 8, 1870. 203 and putting 3 — g X°- Then the equations become r sin (a — cos o- = -=— ! -. 2 r sin (co -|- 5) = «0, ai — a _ i r cos or sin o- = -. If r sin » and r cos by means of the equations aok cos (45° — Q r sin &> r cos a cos a- a0 k sin (45° — £) sin a- and finally xo and rj by means of the relations given above. 204 PROCEEDINGS OF THE AMERICAN ACADEMY There is a very simple geometrical construction of the roots of the equation in a. Making cos o- = x> and sm v = V' tne values of x and y are the co-ordinates of the intersections of the curves whose equa- tions are x2 + f=h (x~a)(j-b) = ab Consequently, if we construct the equilateral hyperbola whose equa- tion is xy=±l, and from a point on it, whose co-ordinates are .1 a yl = - V ±ab' • iab' as centre, we describe a circle, whose radius is , and then draw V/±ab radii to the points of intersection of the curves, the angles made by these radii with the x axis °f co-ordinates are the values of or. Since the centre of the circle is on the hyperbola, there are at least two intersec- tions, and thus the equation in o- has at least two real roots. The geo- metrical construction readily affords the condition which a and b must satisfy in order that there may be four real roots. The condition is, that the length of the straight line drawn from the point a, b, on the hy- perbola whose equation is xy=ab normal to the opposite branch, shall be less than unity. The equation to the normal which passes through the point %", y" on this curve, is x"(x-x")-y"(y-f) = o. The condition that it passes through the point a, b, gives X (X - a) - y" (y" - b) = 0, X V" = a b. If we multiply the first of these by x"% we get X"*(X" — a) -ab(ab — b *") = 0, OF ARTS AND SCIENCES : FEBRUARY 8, 1870. 205 or, rejecting the useless factor \ — a, X"3 + a b2 = 0, whence x" = - vTb2, and by interchanging a and b, y" = - f^. And thus the length of the normal y/ tf - a)2 + (/ - b)2 = [(a + ^Tb2)2 + (b + ^b)2]1 = [a3 -j- baj2. Consequently, if a3 _j_ b? <^ 1, there will be four real roots ; " af -4_ bf = 1, there will be four, and two will be equal ; « a3 _|_ bs ^> 1, there will be only two real roots. We will now show how to arrive at a direct solution of the problem by the employment of trigonometric formulas. If tan (x + tan^(x2+l)=^, or, expanded, x< + 2 tan /3. x3 + ^=^ x2 + 2 tan /3.x + tan2/3 = 0. A quantity p may be assumed, such that this biquadratic shall be resolved into the two quadratics „ . _ sin a cos (/3 -4- w) , a , A y -+- 2 — „ y -4- tan |8 tan u = 0, x ~ cos 0 cos 2 /i A ' M r „ _ cos u sin (/3 — u) . _ - . A y2 4- 2 — — y -4- tan /3 cot u = 0. x ~ cos /3 cos 2 /* * ' M ^ That this is possible will be evident on multiplying the left-hand members of these equations together, for after some reductions easy to make, all the coefficients, with the exception of that of y2, will be found '206 PROCEEDINGS OF THE AMERICAN ACADEMY to be identical with those of the biquadratic ; and consequently 11 is determined by the equation tan 0 [tan M + cot,.] + 2 *" ^ M sin (0 - ,.) cos (0 + M) = C-l L r ' rj ' cos3 /3 cos2 2 /i c2 cos2 /3' or c2 sin 2 0 c2 sin 2 /. [sin 2 /x — sin 2 0] 2 sin 2 /x 1 — sin2 2 ti ' or ^3 sin3 2 it -f (c2 — 1) sin 2 /i — c2 sin 2 0 = 0. That this cubic will always give at least one real value for p, is evi- dent on making in the left-hand member sin 2 ti successively equal to — 1, 0, and -j- 1 ; the results obtained are — c2 (1 -f- sin 2 j8), always negative ; — c2 sin 2 0, negative or positive, according to the sign of sin 2 0 ; -(- c2 (1 — sin 2 0), always positive. Moreover, it is plain that there is one real value of /., which makes sin 2 n and sin 2 0 have like signs ; this value we shall adopt. Making, according as e2 is greater or less than unity, c2 = sec2, y, or c2 = cos2 y ', the above cubic is solved by these formulae (see Chauveuet's Trigo- nometry, p. 96), it being necessary to make three different cases. tan = Case I. 2 sin2 y tan y VH sin 2 0 ' tan yf/ = tan ~, 2 sin 2 a = -7= tan y cot 2 \Jr. ^3 ' r Case n. 2 sin 7' tan2 y sin <£ = — 7=^ '-, V 27 sin 2/3 tan y = tan —, . -, 2 . sin z u = — — sin v cosec 2 sir. ^3 r OF ARTS AND SCIENCES : FEBRUARY 8, 18T0. 207 Case III. sin 3 0= V^si"^, 2 sin y' tan2 y' 2 sin 2j* = — sin y' sin (0 ± 60°). V o When $ is impossible in Case II., the formulas of Case III. must be used; and the upper or lower member of the double sign in the second equation must be taken according as sin 2 /3 is positive or nega- tive ; in order that sin 2 /x may have the same sign with sin 2 fi. All the auxiliary angles (f>, \^, and fi may be taken between the limits ± 90°. Since sin 2 fi sin 2 /x is always positive, tan fi tan fi and tan fi cot fi are so likewise, since they are respectively equivalent to sin 2 fi sin 2 /u sin 2 /3 sin 2 /a j 2~o 2 and - — . . „ . 4 cos' fi cos11 /x 4 cos- fi sin- /x Let us take two auxiliary angles 6 and ff, determined by the equa- tions . _ tan? fi tan* /x cos fi cos 2 /x Sin - 8 -. t-t — : r , sin 2 ff = - or by the equations sin 2 6 = q: sin /x cos (fi -4- fi) tan* fi cot* ii cos /3 cos 2 /x cos /x sin (fi — li) cos 2 fj. /sin 2 /3 1 + /0 Vsi cos 03 + /x) y sin 2 /x' . . /1, cos 2 u /sin 2 fi Sm 2 ' = T sin 03 - M) V smT^' where the upper or lower of the signs must be taken according as cos fi . . . cos fi . . , - in the first and in the second are positive or negative ; sin n cos /x ° and 2 5 and 2 ff may also be taken within the limits ± 90°. The four values of x or tan a are then tan a = tan* /3 tan' ^ tan #, tan a = tan* /3 tan* /x cot 0, tan o- = tan* fi cot* /x tan ff, tan o- = tan* fi cot* /i cot ff. If the value of sin 2 0 or of sin 2 ^ does not fall within the limits 208 PROCEEDINGS OF THE AMERICAN ACADEMY ± 1, it indicates that the two corresponding values of tan o- are imagi- nary. The ambiguity in the determination of o- from its tangent is to be removed by taking it in that quadrant which permits the equation sin 2 a = 2 c sin (o- -\- /3) to be satisfied. Although all these roots will satisfy the equations with which we began this discussion, yet they do not all necessarily belong to the problem. The reason of this is, that the three equations are not a complete statement of all the conditions of the problem. If we denote by A the distance of the body, whose orbit we are determining, from the earth, we shall have A_j = r cos (Xo — v — A_i) + -R-i cos (X_x — L_{), A0 = r cos (xo — Xo) + ^o cos (X0 — L0), Ax =r cos (Xo + 7 — *i) + -#i cos (xi — A)- The conditions of the problem demand that A_x, A0 and Ax shall be essentially positive. Hence, if any system of values of r, xo and rj ren- ders any of these quantities negative, it must be rejected. These re- jected solutions really belong to the problem when one or more of the quantities X_x, X0 and X2 are increased by 180°. In fact, on referring to the equations with which we started, we see they are not altered when any one of the quantities X is increased by 180°. The geometri- cal statement of the problem is more comprehensive than the applica- tion of it to the discovery of the elements of circular orbits. Instead of the above criteria for the rejection of solutions not applicable, the following, which is simpler, may be used, viz. that x always must lie in the angle between L -\- 180° and X which is less than 180°. This example is added for the sake of illustration : — Suppose in the case of Venus revolving about the sun we have these data, Wash. Mean Time. A L log R 1869 Jan. 1.0 250° 22' 59".l 281° 24' 54".9 9.9926528 " June 15.0 94 37 54. 9 84 33 34. 1 0.0069342 " Nov. 27.0 292 3 21. 2 245 32 49. 3 9.9939666 There will be found log a_! = 9.7048977n, log a0 = 9.2497072, log ay — 9.8545925, log* =0.5426896, £ =324° 41' 4."52, 8 = 176°35' 15."25, loga =9.7678074n, log b =9.3111404. OF ARTS AND SCIENCES : FEBRUARY 8, 1870. 209 Constructing the equilateral hyperbola whose equation is xy = — 1, and the circle whose radius is 2.89, and the co-ordinates of its centre x ■=. -j- 1.G9, y' = — 0.59, we find the two roots of the equation in = — 50° 40' 40".00, ty = — 37° 56' 3".23, /* = — 34° 30' 27".50 6 = 14° 49' 46".36, ff is impossible, which confirms the preceding statement about the number of real roots ; and the values of o- are o- = 7° 23' 36".9o and and a from 45° -|- -5 are to be formed ; but this is confessedly less fatiguing than the taking of tabular quantities from a table. It may be allowed to notice here a series, which determines a in terms of I, viz. : — 2 t_ e 4__ b 4- 8 2 a = I 4- ~ tan z tan - ~T " cos I — - tan2 - tan2 "T" sin 2 I — 7 tan3 - tan3 — £ — cos 3 I 3 2 2 OF ARTS AND SCIENCES I FEBRUARY 8, 1870. 213 4- - tan4 - tan4 — !— - sin 4 / 4 2 + &C As tan — tan ~*~ , in the case of the moon, is always between the limits ± — , the above series is, for this body, quite convergent. OX f — A cos I add the values of the function log cos + A , computed for every degree from 0° to 35° of the argument A and for e = 23° 27' 20". A log e + A 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 .0000000 .0015736 .0031474 .0047218 .0062969 .0078730 .0094503 .0110292 .0126098 .0141924 .0157773 .0173647 .0189549 .0205482 .0221447 .0237449 .0253489 .0269570 .0285694 .0301866 .0318087 .0334360 .0350688 .0367074 .0383521 .0400032 .0416610 .0433258 .0449979 .0466776 .0483653 .0500612 .0517658 .0534793 .0552021 0.0569346 15736 15738 15744 15751 15761 15773 15789 15806 15826 15849 15874 15902 15933 15965 16002 16040 16081 16124 16172 16221 16273 16328 16386 16447 16511 16578 16648 16721 16797 16877 16959 17046 17135 17228 - 17325 As Change of this function for an inc. in e of 1" in units of the seventh decimal. + 0.00 2 0.19 6 0.38 7 0.57 10 0.77 12 0.96 16 1.15 17 1.34 20 1.54 23 1.73 25 1.92 28 2 12 31 2.31 32 2 50 37 2.70 38 2.89 41 3.09 43 328 48 3.48 49 368 52 3.88 55 4 08 58 4.28 61 4.48 64 4.68 67 4.88 70 5.08 73 5.29 76 5.49 80 5.70 82 5.90 87 6.11 89 6.32 93 6.53 97 6.74 + 6.95 214 PROCEEDINGS OF THE AMERICAN .ACADEMY Six hundred and eighteenth Meeting. March 8, 1870. — Adjourned Statute Meeting. The President in the chair. The President called the attention of the Academy to the recent decease of Dr. Theodore Strong, of New Brunswick, N. J., of the Associate Fellows. The President communicated a report from the Council, nominating candidates for Associate and Foreign Honorary membership, and also read nominations of candidates for Resi- dent Fellowship. A committee was appointed to confer with other learned societies to secure a building for their accommodation with the Academy. The Vice-President, and Messrs. Nathaniel Thayer, William Gray, J. I. Bowditch, and C. W. Eliot, were appointed on this committee. Six hundred and nineteenth Meeting. April 12, 1870. — Monthly Meeting. The President in the chair. The President called the attention of the Academy to the recent decease of Rev. Dr. Frothingham, of the Resident Fellows. Mr. C. F. Adams communicated two papers by W. B. Bur- den, of England, which were referred to Mr. Francis and Mr. Batchelder as a committee to examine them. Six hundred and twentieth Meeting. May 10, 1870. — Monthly Meeting. The President in the chair. The Corresponding Secretary read letters relative to ex- changes. Dr. Clark made a communication on the medical and physiological action of the chloral hydrate. • OF ARTS AND SCIENCES: MAY 10, 1870. 215 Professor Lovering made the following communication : — " Optical Meteorology has been developed mathematically with great- er success than any other department of this complex science. The principal features of a fully developed halo are : 1. The inner circle, concentric with the luminary, and having a radius of about 22°. 2. The outer circle, also concentric with the luminary, and having a radius of about 46°. Both of these circles, called the smaller and larger halos, are tinged with the colors of the spectrum, the blue being the outermost color. 3. The parhelion circle which passes through the luminary and is parallel to the horizon. This circle is white. 4. Upon this circle, and at a distance of 22° or more from the luminary, are two mock suns, the edges towards the sun being reddish and the opposite edges bluish. 5. A sort of tail stretching from these mock suns horizontally, and op- posite to the line which connects them with the sun, to the distance of 43° 28', or more, from the sun. 6. The tangent curve to the inner halo. 7. The tangent curve to the outer hald. All these features of the halo are satisfactorily explained by refrac- tion and reflection, produced by hexagonal prisms of ice, floating or sinking in the higher region of the atmosphere. These particles may be so situated as to present three independent cases. 1. They may be indiscriminately in all possible positions. 2. The axes of the prisms may be parallel and vertical, the sides of the prisms facing all azimuths. 3. The axes of the prisms may be horizontal, but in all possible azimuths. The Jirst case would exist when the particles of ice were newly formed, and had not accumulated so much velocity that the resistance of the air would bring the surface of least resistance to the front. If the three dimensions of the crystal were nearly the same, there would be no sur- face of least resistance, and the air would exercise no directing influ- ence. The second case would arise, as the consequence of increasing velocity and resistance, if the minimum section of the prism was parallel to the base. The third ca.se would arise, under similar circumstances, if the minimum section was perpendicular to the base. All three cases might coexist at the same moment, because some of the prisms were long and others short, and because some of the prisms had had less time than others to fall, and accumulate velocity and resistance, since their first formation. Of the various angles formed by the sides and ends of these prisms, some would exceed the limit of transmission, others would be zero and produce no refraction. There would remain, of the available angles, 216 PROCEEDINGS OF THE AMERICAN ACADEMY those of 60° made by alternate faces, and those of 90° made by the faces and ends of the prisms. The inner halo is caused by refraction through an angle of 60°, the refracting edges being parallel to the tan- gents to different parts of the halo. The outer halo is caused by refrac- tion through an angle of 90°, the refracting edges of different prisms being parallel to different tangents. Both halos require that the prisms should be scattered at random, so that a sufficient number would be found in the required positions. The white parhelion circle is produced by reflection from the sides of the prisms when their ax;es are vertical. These same prisms, acting through the angle of 60°, would produce the mock suns whenever they stood in the position of minimum deviation ; while others, not in the position of minimum deviation, would produce the colored appendages to the mock suns. These same prisms, acting through the angle of 90°, would cause the tangent curve to the larger halo of 46°. If the luminary were above the horizon, reflection from the upper end of these prisms would produce an uncolored image of the luminary underneath the real luminary ; but this image would not be visible unless the observer were elevated to a great height above the surface of the earth. If the luminary were a little below the horizon, reflection from the lower end of these prisms would produce a similar image above the luminary, and above the horizon, which would be visi- ble ; and hence the luminary might appear to have risen again after set- ting. When the axes of the prisms are horizontal, refraction by the angle of 60° would cause the tangent curve to the inner halo of 22°. If large numbers of prisms were floating contemporaneously in all three positions, all these phenomena might coexist ; otherwise, only a portion of these various features would be displayed. It is evident, therefore, that both halos might be wanting, and yet one or both of the curves which are tangent to them might appear. If the tangent curve to the larger halo of 46° is seen, generally the mock suns and the parhelion circle are also seen, even in the absence of the halo itself. In other words, all which vertical prisms are capable of producing would gen- erally, though not necessarily, be seen at the same time. These general features are somewhat changed by the altitude of the sun, or other luminary, above the horizon. When the sun is in the hori- zon, the parhelia are at the same distance from it as the inner halo, and rest upon it. As the sun rises they go outside of the halo, and become impossible when the altitude of the sun exceeds 60° 45'. The lengths of the tails affixed to the mock suns increase as the sun rises, until the OF ARTS AND SCIENCES: MAY 10, 1870. 217 f limiting angle of transmission is reached. There is an interior as well as a superior tangent arc to the halo of 22°. Their figures are complex, and they join in a single curve, circumscribing the halo itself, when the altitude of the sun exceeds 29° 15'. The inferior arc is rarely visible, unless the sun is more than 22° high. The halo of 46° is less bright than that of 22°, because it is larger and broader; and more light is reflected by the prisms under the larger incidences. The tangent curve to this halo is a circular arc having the zenith for its centre. It cannot be formed if the sun's altitude exceed 32° 12'. The semi-amplitude increases from 57° 48' to 90°. But when it is 90°, its height is also 90° and its radius is reduced to zero. The maximum brightness is in the middle of the whole arc. This arc actually touches the halo of 46° only when the altitude of the sun is 22° 8'. It sensibly touches between the altitudes of 15° and 28°. If the sun were in the horizon, the tangent arc would be 12° 4' above the summit of the halo. If the sun were 30° high, the tangent arc would be 3° 39' above the halo. The altitude of 22° 8' is most favorable, because, in this case, the middle of the arc is formed by rays which have suffered a minimum deviation. A tan- gent arc to the lowermost point of this halo is not impossible, but rare. In this event, the light must enter a vertical face and emerge at the base. The limits of altitude are complementary to those which the superior tangent requires ; that is, the sun's altitude must be between 57° 48' and 90°, the arc actually touching the halo at the special altitude of 67° 52'. If the axes of the prisms are shifted from a vertical to a horizon- tal position, the inferior and superior tangent arcs are changed to what are called infra-lateral and supra-lateral. I have taken renewed interest in this theory of halos, which has been admirably developed by Bravais,* on account of the halo seen at Cam- bridge, January 6, 1870. This halo was seen about two o'clock, when the altitude of the sun was not far from 25°. The principal feature of the phenomenon, on that occasion, was the tangent curve to the halo of 46°, though the halo itself was not visible. At Waltham, the mock suns were seen, but not the tangent curve. The tangent curve seemed to be a com- plete circle, and the colors were very vivid, the red being the outermost color, or nearest to the sun. I have stated that, theoretically, the maxi- mum amplitude of this curve is 180°, and, if the sun had an altitude of 25°, the amplitude would be only about 138°. The history of halos fur- * Journ. de l'^cole Poly technique. Cahier 31. Tome xviii. VOL. VIII. 28 21» PKOCEEDINQS OF TIJE AMERICAN ACADEMY nislies but few examples of this extraordinary occurrence, — a complete circumzenithal circle. On the 24th of January, 1838. Lambert* saw at Wetzler a circle, nearly complete, centred about the zenith, with vivid prismatic colors. On the 11th of July, 1749, Anderonf witnessed at Norwich, about five o'clock, p. M., when the sun was nearly 25° high, a white circle around the zenith. Bravais resorts to two expedients for explaining the enlargement of the circumzenithal arc into a complete circle, in a few rare cases. In the first place, the light may strike the vertical side of the prism too obliquely to be transmitted, so that, after being once or twice reflected upon other vertical sides, it may emerge from sides opposite to the usual ones. In the second place, each point of the arc, originally produced, causes a parhelion circle, all of which are superimposed upon the arc itself, as far as it extends. This last opera- tion, however, would produce light without any discoloration. In the halo seen at Cambridge, the centre of the circle was decidedly south of the zenith. This fact requires us to suppose that the parallel axes of the prisms were not exactly vertical. A current in the atmosphere mi^ht change the direction of the descending particles of ice, but could the lateral motion, with the air, and not in it, develop any new resist- ance which would direct their axes away from the zenith ? I will now exhibit an experiment with an equilateral triangular prism of glass, and also a hollow one filled with water. The axis is vertical, about which it is made to revolve rapidly by clock-work. With a single prism and sunlight, or any bright and circular artificial light, all those features of the halo may be artificially produced which have been re- ferred to the action of many prisms of ice, with vertical axes : the single prism, in its motion, assuming, in rapid succession, all the possible positions of these many prisms in the atmosphere. The halos them- selves can be produced artificially, either by a conical prism, or by arti- ficial crystals formed .upon a plate of glass, as shown by Brewster I and others. § The sun and moon are sometimes encircled by what are called coro- na?. A corona may be distinguished from a halo in many ways. 1. It is much smaller even than the smallest of the two halos. 2. It is not rigidly bound to almost invariable dimensions, as the halo is. 3. When * Pogg. Ann. Physik und Chemie, xlvi. p. 660. t Phil. Trans, xlvi. p. 203. } A Treatise on Optics. Amer. edit. 1835, pp. 232, 233. <> Amer. Journ. xvi. 398. OF ARTS AND SCIENCES : MAY 10, 1870. 219 it is bright enough for the colors to be distinguished, the red is outside and the blue inside. 4. This arrangement of the colors, as well as the dimension of the circle, indicate that a corona is not produced by refrac- tion or reflection in crystals of ice, but by interference. The following experiments which I shall now exhibit to the members of the Academy, will illustrate this subject. When light is sent through the intervals be- tween straight and parallel lines, which have been nicely ruled upon glass, a series of colored fringes, parallel to the lines, results from the interference between rays which pass through different openings. If the glass were ruled with concentric circular lines, close together, these colored bands would become circular, and surround the source of light. By a rapid rotation of the ruled lines in theirown plane, subjective rings result from the parallel fringes. In order to produce the required rota- tion without a material axis, which would intercept the rays of light from the eye of the observer, a platform is turned rapidly by clock-work. The border of this platform is covered with cloth. The circular frame in which the graduated glass is set rests upon this cloth, with its plane at right angles to the platform, and is rotated by friction. Friction-rollers at the sides and top hold it in its place, in the absence of any material axis of rotation. If concentric black circles are accurately drawn upon paper, and then photographed upon glass, on a greatly reduced scale, the photographed plate might be substituted for that on which circular lines had been scratched. Again, if a plate of glass is covered with india-ink, and then concentric circles are scratched upon the black sur- face, leaving the intermediate black rings, the same optical experiment can be performed. All three of these methods have been tried, but the finest and neatest circles were obtained by the last method ; and the ex- perimental result is very beautiful, especially if the ruled glass is placed immediately in front of the object-glass of an opera-glass. Although artificial coronae of great beauty can be produced in these ways, it is obvious that the coronae of nature must have a much simpler origin. And theory shows, that if lycopodium powder, the particles of which are small and spherical, and of uniform size, is sprinkled upon glass, a luminous spot, seen through the glass, will be surrounded with several coronae, which, if less bright than those produced by the con- centric rulings, on that very account have a greater resemblance to those known in Meteorology. It appears that, in this indiscriminate sprink- ling, myriads of minute openings are left everywhere on the plate, enough being found in the required places for producing the colored 220 PROCEEDINGS OF THE AMERICAN ACADEMY rings. Of these the light takes advantage for producing a symmetrical effect, just as in the formation of the rainbow it selects those individual drops of moisture which serve its purpose, while the remainder of the drops are inoperative. A piece of very delicately ground glass accom- plishes the same result. In the atmosphere, the place of the lycopodium powder is filled by the particles of moisture existing in the vesicular state ; and the smaller these particles the larger will be the diameters of the corona? which they produce. In this way these particles are proved to vary between the .001 and the .002 of one inch in diameter.* Corona? indicate the presence of the cumulus cloud ; but halos imply the cirrus cloud, floating at great heights, and within the region of per- petual congelation. For halos are seen even in the summer and in the tropics. By revealing the incipient gathering of the cirrus cloud, they may foretell the approach of a storm. Six hundred and twenty-first Meeting. May 24, 1870. — Annual Meeting. The President in the chair. The Corresponding Secretary communicated letters relative to exchanges, and read a report from the Council proposing nominations for Foreign Honorary and Associate Member- ship. The Treasurer presented his report for the past year, and read a synopsis of it. The report was received, to be entered on the records. Professor Lovering reported from the Committee of Publica- tion its expenditures for the past two years. The report was accepted. Professor F. H. Storer reported for the Committee on the Library on the condition of the Library. Professor Winlock reported, from the Rumford Committee, the completion of Vol. I. of Count Rumford's works, and rec- ommendations of this committee for appropriations from the Rumford Fund. This report was accepted, and in accordance with its recommendations the following votes were passed : — * Kaemtz's Complete Course of Meteorology, p. 111. OF ARTS AND SCIENCES: MAY 24, 1870. 221 Voted, That fifteen hundred dollars be appropriated from the Rumford Fund to continue the publication of Count Rum- ford's works. Voted, That five hundred dollars in gold be appropriated from the Rumford Fund to be expended by Dr. B. A. Gould in the purchase of photometric and spectroscopic apparatus for an observatory at Cordova in the Argentine Republic. The Recording Secretary returned the papers of Mr. W. B. Burden, for the Committee to which they were referred, with the recommendation that they be referred to the astronomical section of the Academy. It was voted to adjourn this meeting, at its close, to the second Tuesday in June. The following gentlemen were elected members of the Academy : — Charles C. Perkins, of Boston, to be a Resident Fellow in Class III., Section 4. Nathaniel Holmes, of Cambridge, to be a Resident Fellow in Class III., Section 1. Raphael Pumpelly, of Cambridge, to be a Resident Fellow in Class II., Section 1. George Derby, of Boston, to be a Resident Fellow in Class II., Section 3. Simon Newcomb, of Washington, to be an Associate Fellow in Class I., Section 1. Truman H. Safford, of Chicago, to be an Associate Fellow in Class I., Section 1. Henry J. Clark, of Lexington, Ky., to be an Associate Fel- low in Class II., Section 3. Alexander Braun, of Berlin, to be a Foreign Honorary Mem- ber in Class II., Section 2, in the place of the late Von Martius. Charles Merivale, of Oxford, to be a Foreign Honorary Member in Class III., Section 3, in the place of the late Dean Milman. The annual election resulted in the choice of the following officers for the ensuing year : — 222 PROCEEDINGS OF THE AMERICAN ACADEMY Asa Gray, President. George T. Bigelow, Vice-President. Joseph Lovering, Corresponding Secretary. Edward C. Pickering, Recording" Secretary. Charles J. Sprague, Treasurer. Frank H. Storer, Librarian. Council. Thomas Hill, Josiah P. Cooke, y of Class I. John B. Henck, Louis Agassiz, Jeffries Wyman, y of Class II. Charles Pickering, Robert C. Winthrop, George E. Ellis, y of Class I [I. Andrew P. Peabody, Rumford Committee. James B. Francis, Joseph Winlock, Morrill Wyman, Wolcott Gibbs, Edward C. Pickering, Josiah P. Cooke, Frank H. Storer. Committee of Finance. ex officio, by statute. Asa Gray, Charles J. Sprague, Thomas T. Bouve, by election. The other Standing Committees were appointed, on the nomination of the President, as follows : — Committee of Publication. Joseph Lovering, Jeffries Wyman, Francis J. Child. OF ARTS AND SCIENCES: MAY 24, 1870. 223 Committee on the Library. Francis Parkman, Charles Pickering, John Bacon. Committee to audit the Treasurer's Accounts. Charles E. Ware, Theodore Lyman. Professor Joseph Winlock exhibited a photograph of the sun taken with a lens of forty feet focus, and four inches aperture. As it is difficult to place a tube of this length in an inclined position, it is laid horizontally, and an image of the sun is reflected into it by a plane mirror of unsilvered glass. When this mirror was blackened on one side, it became heated to such an extent as to shorten the focus of the lens nearly three feet. The image obtained is about four inches in diame- ter, and is free from the distortion produced by an eye-piece. The exposure is instantaneous, and is effected by passing a diaphragm with a slit in it between the lens and mirror. A better effect is thus obtained than by the usual method of placing it near the plate-holder. The lens, which was made by Messrs. Clark and Sons, is not achromatic, as its slight curva- ture rendered this unnecessary. It was corrected for spheri- cal aberration by means of an artificial star, produced by a soda flame, and a collimator, of an aperture somewhat greater than that of the lens. The Corresponding Secretary presented the following an- nual report of the Council : — Since the last report of the Council, the following gentlemen have been elected members of the Academy : — William T. Brigham, of Boston, to be a Resident Fellow in Class II., Section 1. Algernon Coolidge, of Boston, to be a Resident Fellow in Class II., Section 1. Alfred P. Rockwell, of Boston, to be a Resident Fellow in Class I., .Section 4. Alpheus Hyatt, of Salem, to be a Resident Fellow in Class II., Sec- tion 3. 224 PROCEEDINGS OF THE AMERICAN ACADEMY Edward S. Morse, of Salem, to be a Resident Fellow in Class II., Section 3. Thomas W. Parsons, of Boston, to be a Resident Fellow in Class III., Section 4. James M. Barnard, of Boston, to be a Resident Fellow in Class II., Section 3. Henry L. Whiting, of Boston, to be a Resident Fellow in Class I., Section 2. Nathaniel S. Shaler, of Cambridge, to be a Resident Fellow in Class II., Section 1. During the same period, the Academy has lost five members by death, viz.: — Two Resident Fellows, one Associate Fellow, and two Foreign Honorary Members. Thomas Sherwin was born in Westmoreland, New Hampshire, March 26, 1799. His parents in a few years removed to New Ipswich in the same State, and soon afterwards to the adjoining town of Temple. At the age of eight, soon after the death of his mother, Thomas went to live with a relative, Dr. Crombie, of Temple, and re- mained with him six years. In 1813 he spent a short time in Ipswich Academy ; but his father having met with misfortunes, he was com- pelled to leave school, and, in September of the same year, he was ap- prenticed at Groton, Massachusetts, to learn the trade of a clothier, — a trade which at that time appears to have consisted mainly in taking cloth as it came from the domestic looms, and fulling, dyeing, and dressing it for the market. Here he remained eight years, working diligently at his trade, and winning the esteem and confidence of his employers. He was able to attend the district school two months in the year ; but his natural love of learning often led him to devote one or two hours to study after working at the mill until ten o'clock at night. His desire to obtain a college education had now become so strong that he left his trade, and, after teaching a district school in Harvard for a short time, began his preparation for college at the academy in Groton in April, 1820. He completed it at the New Ipswich Acad- emy, and entered Harvard College in 1821. Here, notwithstanding his imperfect preparation, he soon placed himself among the foremost scholars, particularly in mathematics, and graduated with honor in OP ARTS AND SCIENCES : MAY 24, 1870. 225 1825. For a year he had charge of the academy at Lexington, and was then appointed tutor in mathematics in the College. In 1827 he commenced civil engineering with Loammi Baldwin, and, in the same year, under James Hayward, was employed on the preliminary survey of the Boston and Providence Railroad. Relinquishing this business on account of a severe illness, he in 1828 opened a private school for boys, in Boston, and the next year was elected sub-master of the Eng- lish High School. In 1837 he was elected master of the school, and continued to hold the position to the time of his death. As master of the English High School, Mr. Sherwin gained his highest distinction. The best work of his life was here. He inspired his pupils with his own love of thoroughness, and taught them, not more by precept than by example, to think for themselves, and to, aim at a noble manhood. Under his charge the school ranked among the best in the country. Indeed, Mr. Fraser, in his report to the British Parliament on the schools of this country, says : " The English High School struck me as the model school of the United States." In all educational matters Mr. Sherwin took an active interest. He aided in the establishment of the American Institute of Instruction and of the Massachusetts State Teachers' Association, and became President of each of these bodies. He was also one of the founders of the Massachusetts Teacher, and for several years had charge of its mathematical department. He shared in the organization of the Mas- sachusetts Institute of Technology, and, as a member of its govern- ment, was one of its most active and earnest promoters. Mr. Sherwin wrote various addresses and lectures on educational subjects, and contributed several papers to the Mathematical Monthly. In connection with Mr. S. P. Miles, he published a collection of Math- ematical Tables. He was the author, also, of two works on Algebra, — an " Elementary Treatise on Algebra," and a " Common School Al- gebra," — both of which have long held a high place in our schools. Mr. Sherwin was elected a Fellow of this Academy in 1836. In 1868 he was elected a member of the New England Historic-Genea- logical Society. Mr. Sherwin died, very suddenly, July 23, 1869. On that day, not feeling quite well, he consulted a p'hysician, walked home in a cheerful mood, and, after some conversation with his family and a walk in his garden, went to his room, took a book, and in a moment departed. In all the relations of life Mr. Sherwin sustained a hi°-h vol. viii. 29 226 PROCEEDINGS OF THE AMERICAN ACADEMY reputation. In boyhood diligent and faithful, in youth persevering in his efforts to secure a liberal education, as a teacher attaining rare success by conscientious devotion to the best interests of his pupils, patriotic when his country was in danger, zealous in promoting the cause of sound education, and full of kindly affection towards all, he has left a memory that will be long and lovingly cherished. Nathaniel Langdon Frothinghau was born in Boston, July 23, 1793. He was graduated at Harvard University in 1811. He pursued the study of theology at Cambridge, under the direction of Dr. Ware, Senior, and from 1812 to 1815 inclusive officiated in the College as instructor in Rhetoric and Oratory. In 1815 he was ordained pastor of the First Church in Boston. In 1818 he married Ann Gorham, daughter of Peter C. Brooks. In 1836 he received the degree of S. T. D. from Harvard University. In 1850 he resigned his parochial charge, retaining the undivided respect and affection of his people, and continuing, until disabled by bodily infirmity, to take an active and efficient interest in the prosperity of the parish, and in the labors and services of his successor in its ministry. His life, during his retirement, was devoted mainly to literary pursuits, hardly impeded by the gradual failure of sight, which terminated in total blindness. Other eyes replaced his own for several years, and his mind retained its clearness, vigor, and fruitfulness for many months after his vision was closed upon the outward world. For the last two or three years, however, disease and infirmity have incapacitated him both for labor and for enjoyment, and life was becoming a weariness and a burden, when it was mercifully closed on the 4th of April, 1870. Dr. Frothingham's distinction lay in the purity, keenness, delicacy, and high culture of the assthetic nature. In other respects the peer of able and accomplished men, in this he could have had, if here and there an equal, no superior. Taste was in him genius, wisdom, and power. It imparted a new and rare beauty, even to trite thoughts; it crystallized his scholarship in the most graceful forms ; it gave law to his most indifferent words and acts. He was a scholar by inclination and by lifelong habit. He was well versed equally in classical and in modern literature. He became famil- iar with the German language at a very early period, and was well read in German theology, while intimately conversant with the poetry and imaginative literature to which that language is the key. By no means narrowly utilitarian, he loved all knowledge for its own sake, OF ARTS AND SCIENCES: MAY 24, 1870. 227 without reference to its availableness for immediate service ; and he thus became possessed of much of that rare and recondite erudition which enriches and fertilizes the mind, though it may contribute but little to one's professional ability or fame. As a preacher, Dr. Frothingham held a high and somewhat unique position. His sermons were most appreciated by minds of the largest culture, and yet in thought and in diction they were not above the comprehension of any person of moderate intelligence. Here his ex- quisite taste gave at once law, scope, and limit. Quaint, but never irreverent; elegant in style, yet without lapsing into euphuism ; never forgetting the solemnity of time, place, and purpose, yet instinctively shunning the mere commonplaces of devout thought; solicitous always to instruct and impress his hearers, and ready to avail himself, for this end, of as wide a diversity of topics, illustrations, and allusions, as was consistent with the sacredness of the occasion, — he wrote few sermons that were not listened to with vivid interest, and held in enduring re- membrance. Yet his sermons by no means indicated his full capacity of grappling with the highest and the greatest subjects. He seemed unwilling to write anything that was not whole and complete in itself; and there are many topics on which it is impossible to write a perfectly rounded and finished treatise that can be read in half an hour. He essayed no subject which could not be thus compressed naturally and gracefully. His range therefore, as a preacher, was broad, rather than high or deep ; but within that range few ministers have been so uni- formly apt, rich, and edifying. He was peculiarly felicitous, not only in his treatment of special occasions for pulpit utterance, but in creating such occasions ; so that whatever had worthily claimed the attention or interest of his hearers during the week was not unlikely on Sunday to be presented in its religious aspects and lessons. As a poet, Dr. Frothingham won indeed a high reputation, but a fame far below his merit. As he wrote no long poem, and published no collection of his poetry till very late in life, the public, and even his friends, awoke but slowly and tardily to the recognition of his genius in this department. But as from time to time a hymn or a metrical composition, in conception a gem of pure radiance in a setting of wonderful beauty, appeared under his signature, in the programme of a religious or civic festival, or in the pages of a monthly or quarterly, it was felt more and more that he was indeed a poet by divine ri^ht and gift ; and there are some of his lyrics that can hardly fail to per- 228 PROCEEDINGS OF THE AMERICAN ACADEMY petuate his name, when all other memorials of him shall have passed away. Here, too, we mark not onlj " the vision and the faculty- divine," but equally the unerring taste, incapable of an incongruous image, a mixed metaphor, an unapt epithet, a halting rhythm, or a forced rhyme. He professed to translate a great many German poems ; but he made them all his own. He is, indeed, in these versions, true to the original ; but he transposes rather than translates it, seeking not so much for synonymous words and phrases, as for equivalent force and beauty of expression. In character Dr. Frothingham was worthy of his sacred profession, of the affection with which he was regarded by all who knew him well, and of the general reverence which followed him to his retire- ment and to his grave. In manners and conversation his strongly marked individuality was so held in check, alike by good taste and by benevolence, as to be piquant indeed, but never otherwise than genial and attractive. He had many warm friends, perhaps few intimates. Generous, hospitable, kind, tenderly thoughtful for the feelings and the rights of others, he did untold good in those quiet, unostentatious ways in which genuine philanthropy can work without shout or song. He was conservative both from taste and from principle ; but his con- servatism had in it no bitterness or exclusiveness, — he only preferred doing good in his accustomed ways, while he conceded cordially the freedom of choice he claimed. As a pastor, he was tenderly beloved 5 and in all professional, social, and domestic relations he has left only the most precious and blessed memories. Dr. Frothingham's only published volumes were " Sermons in the Order of a Twelvemonth " and two volumes of Poems. Of occasional sermons and other pamphlets he printed many. He contributed largely to our best periodical literature, and to every important publi- cation of that kind issued in Boston, for considerably more than half a century ; and his papers thus published, and because of their form forgotten, would fill nearly half as many volumes as they covered years. Theodore Strong was born at South Hadley, Massachusetts, in July, 1790, and died at New Brunswick, New Jersey, February 1, 1869. His father was a clergyman, and there had been an unbroken line of min- isters in the family of his mother for eleven generations. He took his bachelor's degree at Yale in 1812, and was immediately appointed tutor in Mathematics at Hamilton College, Clinton, New York. He was soon OF ARTS AND SCIENCES : MAY 24, 1870. 229 after appointed Professor of Mathematics and Natural Philosophy, and held that chair until 1827, when he was called to the similar chair made illustrious by the genius of Dr. Robert Adrain, at Rutgers College, New Brunswick, New Jersey, where he continued in active duty until 1862. He married, in 1819, Lucy Dix, of Boston, who survives him, with three of their seven children ; one son of great promise, who was in the army, fell during the late civil war. As a teacher Dr. Strong was remarkable for his faith in spontaneous effort, and his utter want of faith in any sort of coercion ; he would arouse the enthusiasm of his pupils to study subjects, not compel them to study books. With this faith in the value of spontaneous effort, his desire was more earnest to affect the character of the students than merely to give them specific knowledge ; and with his firm convictions of the truth of the Christian religion, he sought ever earnestly to awaken religious life in his scholars, as the most effectual means of arousing intellectual life. All his convictions, whether in religion, philosophy, or politics, were very strong, held with extreme tenacity, and, if attacked, defended with courteous but earnest warmth. It was said that he never failed, in the College Faculties with which he was connected, to bring the majority to his views. His conclusions were never hasty ; he was a patient thinker and careful reader, and took especial pleasure in the writings of the deeper English theologians. His firmness of conviction gave pleas- ure even to those who differed from him ; no man could resist the attraction of his frank, honorable self-poise ; and it was good also to look upon a man of such robust health, maintained by habits of great activity and cheerful self-control. His mathematical powers lay rather in the direction of geometry than in analysis, yet his analytical power was also great. He was too far advanced in years, at the time when the modern rapid developments began, to be much affected by them, but has himself taken important steps. The following is an imperfect list of Dr. Strong's mathematical writings : — 1. Twenty-two communications in Gill's Mathematical Miscellany. 2. Seven communications in the Cambridge Miscellany. 3. Twenty-two papers in the American Journal of Science, viz. : — On Trigonometric and Diophantine Problems, Vols. I. and XXXI. 230 PROCEEDINGS OF THE AMERICAN ACADEMY Problems with Geometrical Construction, Vol. II. On the Binomial Theorem, Vol. XII. On Central Forces, Vols. XVI., XVII., XIX, XXL, XXII. Capillary Attraction, Vol. XVIII. On the Motion of a System of Bodies, Vols. XXIV, XXV., XXVI. Parallelogram of Forces, Vols. XXVI., XXIX. Composition and Resolution of Forces, Vol. XXVIII. Variation of Constants in Elliptic Motion, Vol. XXX. Virtual Velocities, Vols. XLII., XLIII. Differential Equations, Vol. XLII. Differential Calculus, and Taylor's Theorem, Vol. XLV. Exponential and Logarithmic Theorems, Vol. XLVIII. 4. A Paper in Runkle's Mathematical Monthly for April, 1860, on the Extraction of Roots, and one in June, 1861, on the Equilibrium of the Lever. 5. A Treatise on Elementary and Higher Algebra, New York, 1859. 6. A Treatise (in MSS.) on the Differential and Integral Calculus. It would be difficult to find in the history of science a character more simple, more noble, or more symmetrical in all its parts than that of Thomas Graham, and he will always be remembered as one of the most eminent of those great students of nature, who have rendered our Saxon race illustrious. He was born of Scotch parents in Glasgow in the year 1805, and in that city, where he received his education, all his early life was passed. In 1837 he went to London as Professor of Chemistry in the newly established London University now called University College, and he occupied this chair until the year 1855, when he succeeded Sir John Herschel as Master of the Royal Mint, a post which he held to the close of his life. His death, on the 16th of September last, at the age of sixty, was caused by no active disease, but was simply the wearing out of a constitution enfeebled in youth by privations voluntarily and courageously encountered that he might de- vote his life to scientific study. As with all earnest students, that life was uneventful, if judged by ordinary standards; and the records of his discoveries form the only materials for his biography. Although one of the most successful investigators of Physical Science, the late Master of the Mint had not that felicity of language or that copiousness of illustration, which added so much to the popular reputation of his dis- OF ARTS AND SCIENCES ! MAY 24, 1870. 231 tinguished contemporary, Faraday ; but his influence on the progress of science was not less marked or less important. Both of these eminent men were for a long period of years best known to the English public as teachers of Chemistry, but their investigations were chiefly limited to physical problems ; yet, although both cultivated the border ground between Chemistry and Physics, they followed wholly different lines of research. While Faraday was so successfully developing the princi- ples of electrical action, Graham with equal success was investigating the laws of molecular motion. Each followed with wonderful constancy, as well as skill, a single line of study from first to last, and to this con- centration of power their great discoveries are largely due. One of the earliest and most important of Graham's investigations, and the one which gave the direction to his subsequent course of study, was that on the diffusion of gases. It had already been recognized that impenetrability in its ordinary sense is not, as was formerly sup- posed, a universal quality of matter. Dalton had not only recognized that aeriform bodies exhibit a positive tendency to mix, or to penetrate through each other, even in opposition to the force of gravity, but had made this quality of gases the subject of experimental investigation. He inferred, as the result of his inquiry, " that different gases afford no resistance to each other; but that one gas spreads or expands into the space occupied by another gas, as it would rush into a vacuum ; at least, that the resistance which the particles of one gas offer to those of another is of a very imperfect kind, to be compared to the resistance which stones in the channel of a stream oppose to the flow of running water." But although this theory of Dalton was essentially correct and involved the whole truth, yet it was supported by no sufficient evi- dence, and he failed to perceive the simple law which underlies this whole class of phenomena. Graham, " on entering on this inquiry, found that gases diffuse into the atmosphere with different degrees of ease and rapidity." This was first observed by allowing each gas to diffuse from a bottle into the air through a narrow tube in opposition to the solicitation of gravity. Afterwards an observation of Doebereiner on the escape of hydrogen gas by a fissure or crack in a glass receiver caused him to vary the conditions of his experiments, and led to the invention of the well- known " Diffusion Tube." In this simple apparatus a thin septum of plaster of Paris is used to separate the diffusing gases, which, while it arrests in a great measure all direct currents between the two media, 232 PROCEEDINGS OP THE AMERICAN ACADEMY does not interfere with the molecular motion. Much later, Graham found in prepared graphite a material far better adapted to this pur- pose than the plaster, and he used septa of this mineral to confirm his early results, in answer to certain ill-considered criticisms in Bunsen's work on Gasometry. These septa he was in the habit of calling I113 " atomic filters." By means of the diffusion tube Graham was able to measure accurately the relative times of diffusion of different gases, and he found that equal volumes of any two gases interpenetrate each other in times which are inversely proportional to the square roots of their re- spective densities, and this fundamental law was the greatest discovery of our late Foreign Associate. It is now universally recognized as one of the few great cardinal principles which form the basis of Physi- cal Science. It can be shown, on the principles of pneumatics, that gases should rush into a vacuum with velocities corresponding to the numbers which have been found to express their diffusion times ; and, in a series of ex- periments on what he calls the " Effusion" of gases, Graham confirmed by trial this deduction of theory. In these experiments a meas- ured volume of the gas was allowed to find its way into the vacuous jar through a minute aperture in a thin metallic plate, and he carefully distinguished between this class of phenomena and the flowing of gases through capillary tubes into a vacuum, in which case, however short the tube, the effects of friction materially modify the result. This last class of phenomena Graham likewise investigated, and designated by the term " Transpiration." While, however, it thus appears that the results of Graham's inves- tigation were in strict accordance with Dalton's theory, it must also be - evident that Graliam was the first to observe the exact numerical re- lation which obtains in this class of phenomena, and that all-impor- tant circumstance entitles him to be regarded as the discoverer of the law of Diffusion. The law, however, as first enunciated, was purely empirical, and Graham himself says that something more must be as- sumed than that gases are vacua to each other, in order to explain all the phenomena observed ; and according to his original view this rep- resentation of the process was only a convenient mode of expressing the final result. Such has proved to be the case. Like other great men, Graham built better than he knew. In the progress of Physical Science during the last twenty-five years, two principles have become more and more conspicuous, until at last they OF ARTS AND SCIENCES : MAY 24, 1870. 233 have completely revolutionized the philosophy of Chemistry. In the first place it has appeared that a host of chemical as well as of physi- cal facts are co-ordinated by the assumption that all substances in the state of gas have the same molecular volume, or, in other words, con- tain the same number of molecules in a given space ; und in the second place, it has become evident that the phenomena of heat are simply the manifestations of molecular motion. According to this view, the temperature of a body is the vis viva of its molecules ; and since all molecules at a given temperature have the same vis viva, it follows that the molecules must move with velocities which are inversely pro- portional to the square roots of the molecular weights. Moreover, since the molecular volumes are equal, and the molecular weights therefore proportional to the densities of the aeriform bodies in which the molecules are the active units, it also follows that the velocities of the molecules in any two gases ai'e inversely proportional to the square roots of their respective densities. Thus the simple numerical rela- tions first observed in the phenomena of diffusion are the direct result of molecular motion, and it is now seen that Graham's empirical law is included under the fundamental laws of motion. Thus Graham's investigation has become the basis of the new science of molecular mechanics, and his measurements of the jates of diffusion prove to be the measures of molecular velocities. From the study of diffusion Graham passed by a natural transi- tion to the investigation of a class of phenomena which, although closely allied to the first, as to the effects produced, differ wholly in their essential nature. Here also he followed in the footsteps of Dalton. This distinguished chemist had noticed that a bubble of air separated by a film of water from an atmosphere of carbonic an- hydride gradually expanded until it burst. In like manner a moist bladder, half filled with air and tied, if suspended in an atmosphere of the same material, becomes in time greatly distended by the in- sinuation of this gas through its substance. This effect cannot be the result of simple diffusion, for it is to be remembered that the thin- nest film of water, or of any liquid, is absolutely impermeable to a gas as such, and, moreover, only the carbonic anhydride passes through the film, very little or none of the air escaping outward. The re- sult depends, first, upon the solution of the carbonic anhydride by the water on one surface of the film ; secondly, on the evaporation into the air, from the other surface, of the gas thus absorbed. Similar ex- VOL. VIII. 30 234 PROCEEDINGS OF THE AMERICAN ACADEMY periments were made by Drs. Mitchell and Faust, and others, in which gases passed through a film of india-rubber, entering into a partial combination with the material on one surface, and escaping from it on the other. Graham not only considerably extended our knowledge of this class of phenomena, but also gave us a satisfactory explanation of the mode in which these remarkable results are produced. He recognized in these cases the action of a feeble chemical force, insufficient to pro- duce a definite compound, but still capable of determining a more or less perfect union, as in the case of simple solution. He also dis- tinguished the influence of mass in causing the formation or decomposi- tion of such weak chemical compounds. The conditions of the phenom- ena under consideration are simply these : — First. A material for the septum capable of forming a feeble chem- ical union with the gas to be transferred. Secondly. An excess of the gas on one side of the film and a deficiency on the other. Thirdly. Such a temperature that the unstable compound may orm at the surface, where the aeriform constituent is present in large mass, while it decomposes at the opposite surface, where the quantity is less abundant. One of the most remai-kable results of Graham's study of this pecu- liar mode of transfer of aeriform matter through the very substance of solid bodies was an ingenious method of separating the oxygen from the atmosphere. The apparatus consisted simply of a bag of india- rubber kept distended by an interior framework, while it was exhausted by a Sprengel pump. Under these circumstances the selective affinity of the caoutchouc determines such a difference in the rate of transfer of the two constituents of the atmosphere that the amount of oxygen in the transpired air rises to forty per cent, and by repeating the process nearly pure oxygen may be obtained. It was at first hoped that this method might find a valuable application in the arts, but in this Graham was disappointed ; for the same result has since been effected by purely chemical methods, which are both cheaper and more rapid. These experiments on india-rubber naturally led to the study of similar effects produced with metallic septa, which, although to some extent previously observed in passing gases through heated metallic tubes, had been only imperfectly understood. Thus, when a stream ot OF ARTS AND SCIENCES : MAY 24, 1870. 235 hydrogen or carbonic oxide is passed through a red-hot iron tube, a no inconsiderable portion of the gas escapes through the walls. The same is true to a still greater degree when hydrogen is passed through a red- hot tube of platinum, and Graham showed that through the walls of a tube of palladium hydrogen gas passes, under the same conditions, al- most as rapidly as water through a sieve. Moreover, our distinguished Associate proved that this rapid transfer of gas through these dense metallic septa was due, as in the case of the india-rubber, to an actual chemical combination of its material with the metal, formed at the sur- face, where the gas is in excess, and as rapidly decomposed on the op- posite face of the septum. He not only recognized as belonging to this class of phenomena the very great absorption of hydrogen by platinum plate and sponge in the familiar experiment of the Doebereiner lamp, but also showed that this gas is a definite constituent of meteoric iron, — a fact of great interest from its bearing on the meteoric theory. We are thus led to Graham's last important discovery, which was the justification of the theory we have been considering, and the crown- ing of this long line of investigation. As may be anticipated from what has been said, the most marked example of that order of chemical com- pounds, to which the metallic transpiration of aeriform matter we have been considering is due, is the compound of palladium with hydrogen. Graham showed that when a plate of this metal is made the negative pole in the electrolysis of water, it absorbs nearly one thousand times its volume of hydrogen gas, — a quantity approximative^ equivalent to one atom of hydrogen to each atom of palladium. He further showed that the metal thus becomes so profoundly altered as to indicate that the product of this union is a definite compound. Not only is the volume of the metal increased, but its tenacity and conducting power for elec- tricity are diminished, and it acquires a slight susceptibility to magnet- ism, which the pure metal does not possess. The chemical qualities of this product are also remarkable. It precipitates mercury from a solution of its chloride, and in general acts as a strong reducing agent. Exposed to the action of chlorine, bromine, or iodine, the hydrogen leaves the palladium and enters into direct union with these elements. More- over, although the compound is readily decomposed by heat, the gas can- not be expelled from the metal by simple mechanical means. These facts recall the similar relations frequently observed between the qualities of an alloy and those of the constituent metals, and suggest the inference made by Graham, that palladium charged with hydrogen 236 PROCEEDINGS OF THE AMERICAN ACADEMY is a compound of the same class, — a conclusion which harmonizes with the theory long held by many chemists, that hydrogen gas is the vapor of a very volatile metal. This element, however, when combined with palladium, is in a peculiarly active state, which sustains somewhat the same relation to the familiar gas that ozone bears to ordinary oxygen. Hence Graham distinguished this condition of hydrogen by the term " Hydrogenium." Shortly before his death a medal was struck at the Royal Mint from the hydrogen palladium alloy in honor of its discov- ery ; but although this discovery attracted public attention chiefly on account of the singular chemical relations of hydrogen, which it brought so prominently to notice, it will be remembered in the history of science rather as the beautiful termination of a life-long investigation, of which the medal was the appropriate seal. Simultaneously with the experiments on gases, whose results we have endeavored to present in the preceding pages, Graham carried forward a parallel line of investigation of an allied class of phenomena, which may be regarded as the manifestations of molecular motion in liquid bodies. The phenomena of diffusion reappear in liquids, and Graham carefully observed the times in which equal weights of various salts dissolved in water diffused from an open-mouth bottle into a large vol- ume of pure water, in which the bottle was immersed. He was not, however, able to correlate the results of these experiments by such a simple law as that which obtains with gases. It appeared, nevertheless, that the rate of diffusion differs very greatly for the different soluble salts, having some relation to the chemical composition of the salt which he was unable to discover. But he found it possible to divide the salts into groups ot equi-diffusive substances, and he showed that the rates of diffusion of the several groups bear to one another simple nu- merical ratios. More important results were obtained from the study of a class of phenomena corresponding to the transpiration of gases through india- rubber or metallic septa. These phenomena, as manifested in the trans- fer of liquids and of salts in solution through bladder, or a similar mem- brane, had previously been frequently studied under the names of exos- mose and endosmose, but to Graham we owe the first satisfactory explanation. As in the case of gases, he referred these effects to the influence of chemical force, combination taking place on one sm-face of the membrane, and the compound breaking up on the other, the differ- ence depending, as in the previous instance, on the influence of mass. OF ARTS AND SCIENCES : MAY 24, 1870. 237 He also swept away the arbitrary distinctions made by previous experi- menters, showed that this wbole class of phenomena are essentially similar, and called this manifestation of power simply " osmose." While studying osmotic action, Graham was led to one of his most important generalizations, — the recognition of the crystalline and amorphous states as fundamental distinctions in chemistry. Bodies in the first state he called crystalloids ; those in the last state, colloids (resembling glue). That there is a difference in struct- ure between crystalloids, like sugar or felspar, and colloids, like barley candy or glass, has of course always been evident to the most superficial observer ; but Graham was the first to recognize in these external differences two fundamentally distinct conditions of matter not peculiar to certain substances, but underlying all chemical differences, and appearing to a greater or less degree in every substance. He showed that the power of diffusion through liquids depends very much on these fundamental differences of condition, — sugar, one of the least diffusible of the crystalloids, diffusing fourteen times more rapidly than caromel, the corresponding colloid. He also showed that, in accord- ance with the general chemical rule, while colloids readily combine with crystalloids, bodies in the same condition manifest little or no tendency to chemical union. Hence in osmose, where the membranes employed are invariably colloidal, the osmotic action is confined almost entirely to crystalloids, since they alone are capable of entering into that combination with the material of the septum on which the whole action depends. On the above principles Graham based a simple method of sepa- rating crystalloids from colloids, which he calls " dialysis," and which was a most valuable addition to the means of chemical analysis. A shallow tray, prepared by stretching parchment paper (an insoluble colloid) over a gutta-percha hoop, is the only apparatus required. The solution to be " dialyzed " is poured into this tray, which is then floated on pure water, whose volume should be eight or ten times greater than that of the solution. Under these conditions the crystal- loids will diffuse through the porous septum into the water, leaving the colloids on the tray, and in the course of a few days a more or less complete separation of the two classes of bodies will have taken place. In this way arsenious acid and similar crystalloids may be separated from the colloidal materials with which, in the case of poisoning, they are usually found mixed in the animal juices or tissues. 238 PROCEEDINGS OF THE AMERICAN ACADEMY But besides having these practical applications, the method of dialysis in the hands of Graham yielded the most startling results, developing an almost entirely new class of bodies as the colloidal forms of our most familiar substances, and justifying the conclusion that the colloidal as well as the crystalline condition is an almost universal attribute of matter. Thus, he was able to obtain solutions in water of the colloidal states of aluminic, feoric, chromic, stannic, metastannic, titanic, molybdic, tungstic, and silicic hydrates, all of which gelatinize under definite conditions like a solution of glue. The wonderful nature of these facts can be thoroughly appreciated only by those familiar with the subject, but all may understand the surprise with which the chemist saw such hard, insoluble bodies as flint dissolved abundantly in water and con- verted into soft jellies. These facts are, without doubt, the most im- portant contributions of Dr. Graham to pure chemistry. In this sketch of the scientific career of our late Associate, we have followed the logical, rather than the chronological, order of events, hoping thus to render the relations of the different parts of his work more intelligible. It must be remembered, however, that the two lines of investigation we have distinguished were in fact interwoven, and that the beautiful harmony which his completed life presents was the result, not of a preconceived plan, but of a constant devotion to truth, and a childlike faith, which unhesitatingly pressed forward whenever nature pointed out the way. Although the investigations of the phenomena connected with the molecular motion in gases and liquids were by far the most important of Dr. Graham's labors, he also contributed to chemistry many re- searches which cannot be included under this head. Of these, which we may regard as his detached efforts, the most important was his investigation of the hydrates and other salts of phosphorus. It is true that the interpretation he gave of the results has been materially modi- fied by the modern chemical philosophy, yet the facts which he estab- lished form an important part of the basis on which that philosophy rests. Indeed, it seems as if he almost anticipated the later doctrines of types and polybasic acids, and in none of his work did he show more discriminating observation or acute reasoning. A subsequent investi- gation on the condition of water in several crystalline salts and in the hydrates of sulphuric acid is equally remarkable. Lastly, Graham also made interesting observations on the combination of alcohol with salts, on the process of etherification, on the slow oxidation of phosphorus, OF ARTS AND SCIENCES: MAY 24, 1870. 239 and on the spontaneous inflammability of phosphuretted hydrogen. It would not, however, be appropriate in this place to do more than enumerate the subjects of these less important studies ; and we have therefore only aimed in this sketch to give a general view of the character of the field which this eminent student of nature chiefly cultivated, and to show how abundant was the harvest of truth which we owe to his faithful toil. Graham was not a voluminous writer. His scientific papers were all very brief, but comprehensive, and his " Elements of Chemistry " was his only large work. This was an admirable exposition of chemical physics, as well as of pure chemistry, and gave a more philosophical ac- count of the theory of the galvanic battery than had previously appeared. Our late Associate was fortunate in receiving during life a generous recognition of the value of his labors. His membership was sought by almost all the chief scientific societies of the world, and he enjoyed to a high degree the confidence and esteem of his associates. Indeed, he was singularly elevated above the petty jealousies and belittling quarrels, which so often mar the beauty of a student's life, while the great love- liness and kindliness of his nature closely endeared him to his friends. He was never married, keeping house with a sister at No. 4 Gordon Square, where he dispensed a liberal hospitality, which has been en- joyed by many of .our scientific countrymen who have visited London during the last twenty years. In concluding, we must not forget to mention that most genial trait of Graham's character, his sympathy with young men, which gave him great influence as a teacher in the College with which he was long associated. There are many now prominent in the scientific world who have found in his encouragement the strongest incentive to perseverance, and in his approval and friendship the best reward of success. Frederic Overbeck was born at Lubeck on the 2d of July, 1789, and commenced his studies in art at a very early age. In 1806 he entered the Academy of Fine Arts at Vienna. His natural tendencies, fostered by the counsels of Eberhard Wachter, soon led him to the exclusive study of the Pre-Raphaelite painters. This brought him into such open opposition to the professors, whose principles were those of the classical school of Mengs and David, that he was dis- missed from the Academy, and in the year 1810 went to Rome, where he found himself in a thoroughly congenial atmosphere. Six 240 PROCEEDINGS OF THE AMERICAN ACADEMY years lafer, when Niebuhr arrived there as Prussian ambassador, he found Overbeck and other young artists, who were then laying the foundations of the new school of painting in Germany, divided into two parties, professing utterly opposed principles. These were the Nazarenes, so called from their mode of life and their austerity of demeanor, whose leaders, Overbeck, Wilhelm, Schadow, and Veit, late converts to Romanism, looked upon art as the servant of religion, and lived like monks in the old convent of San Isidoro, preparing then- simple meals in the kitchen of the convent ; and the Pagans, as they might have been denominated, who were devout adoi'ers of the antique. This latter party numbered Thorwaldsen, Koch, and Schlick in its ranks. Cornelius stood midway between the two parties, but his dis- like of the proselytism which was practised by the Nazarenes rather impelled him in the opposite direction ; and, although a Catholic, he openly said that when they made their first convert he would become a Protestant. Niebuhr tells us that the Catholicism of Cornelius was at bottom nothing more than the creed of the old Protestants, " thanks to the training which he had received from a pious, though by no means big- oted mother " ; but Overbeck, he adds, " is, on the contrary, an enthusi- ast, and quite illiberal ; he is a very amiable man and endowed with a magnificent imagination, but incapable by nature of standing alone, and by no means so clear-headed as he is practical." In the society of such men as Niebuhr, Bunsen, and Brandis these artists met on the most friendly terms, though certain topics (teste Niebuhr) were necessarily excluded from conversation on account of the Catholicism of Overbeck and Schadow. A few years after Overbeck had settled at Rome, the Prussian Consul-General, Salomm Bartholdy (Mendelssohn's uncle), proposed to him, together with Veit, Schadow, and Cornelius, to decorate with frescos a room in the Palazzo Zuccheri, where he resided, offering himself to meet all material expenses. Thus these young and ardent spirits were enabled to carry out their long-cherished project of reviv- ing an almost forgotten art in the very city where its greatest master- pieces had been executed, nearly three centuries before, by the hands of Raphael and Michael Angelo. The history of Joseph was selected for treatment, and Overbeck painted the episode of Joseph sold by his brethren to the Ishmaelites. In this, his first important work, the young artist displayed his life- OF ARTS AND SCIENCES : MAT 24, 1870. 241 long merits and defects. We need go no farther to understand him ; for, unlike men of original genius, Overheck had but one style, or, to speak more correctly, but one manner, which too often degenerated into mannerism. He was in no sense progressive ; his art wanted individual life ; it was a plant carefully trained after the outward pattern of a phase of art which still keeps its high place because it was the spontaneous growth and vital expression of the age which produced it, — a ghost clad in Pre-Raphaelite garments, cold, cor- rect, full of evidences of careful study, but never inspired, never living. Now and then, as in this very fresco, or in his great pic- ture of The Influence of Religion upon the Arts in the Staedel In- stitute at Frankfort, we are charmed by a naive grace and simplicity ; but this is because we are thinking of Perugino, rather than of Overbeck. After completing their work at the Palazzo Zuccheri, Overbeck, Schadow, and Cornelius painted frescos, representing scenes selected from the poems of the four great Italian poets, in the casino of the villa of Prince Massimo, near St. John Lateran. Overbeck took his subject from Tasso ; but he was not the man required for such a work, and could not rise to the same level as when his pencil was employed upon Biblical scenes. In dealing with these he was in his element, and the long series of charcoal drawings which he commenced, while living at the Palazzo Cenci, for an illustrated German Bible, are, as it seems to us, by far his best works. For color he had no feeling. His oil pictures are positively disagreeable from their leaden tones, false scale of crude tints, and inharmonious juxtaposition of colors ; but his simple outline drawings, only slightly shaded, are masterly. His most important paintings, besides those already mentioned, are the Miracle of St. Francis and the Roses, in the Church of Sta. Maria degli Angeli at Assisi ; Christ in the Garden, at Hamburg ; and the Entrance of Christ into Jerusalem, in the Church of the Virgin at Lubeck. After residing fifty-nine years at Rome, Overbeck died there of rapid consumption on the 12th of November, 1869. No one who has ever seen him can forget his striking appearance. Like his art, he was an .anachronism. Clad in a long purple robe bordered with gray fur, and wearing a cap of the same material and trimmings upon his head, grave and sober in his walk and conversa- tion, he looked as if he had stepped out of one of Holbein's pictures. Could he have been set down in the Rotterdam of the sixteenth cen- VQL. VIII. 31 242 PROCEEDINGS OF THE AMERICAN ACADEMY tury, he might have met Erasmus without startling him as he startled the stranger of our day who saw him for the first time in the streets of Rome or in his studio on the Esquiline. He was so gentle and kindly that all felt drawn towards him, while at the same time his reverend aspect inspired those who approached him with veneration. The purity of his life was reflected in his per- son, as in his art, and the atmosphere which surrounded him was so far removed from the tumultuous rush of modern existence, that when you left him, and plunged again into the world as it is, you carried away a thousand longings for that world of which he seemed a part. Overbeck was a priest of Art, to whom it was a holy thing, and never a means of gaining money or men's applause. The thanks of the Academy were voted to the retiring Secretary, Mr. Wright, for his long and faithful service. Six hundred and twenty second Meeting. June 1-1, 1870. — Adjourned Annual Meeting. The President in the chair. Letters in acknowledgment of their election as Fellows were received from C. C. Perkins, Esq., Professor N. Holmes, and Dr. George Derby. Dr. J. B. S. Jackson was appointed to the Auditing Commit- tee in place of Dr. Ware, absent in Europe. Professor Lovering proposed that Chapter I., Section II., of the Statutes of the Academy, be amended by the substitution of the word " five" for " three," and also for the word " two," so that the article shall read " and an annual assessment of five dollars, with such additional sum, not exceeding five dollars, as the Academy shall, by a standing vote, from time to time determine." Referred to a committee consisting of Messrs. Lovering, Clark, and Quincy. The President called attention to the fact, that, in the new Dictionary of Latin and Byzantine Greek by Professor Sopho- cles, no mention is made of the " Glossary," published by the Academy as the seventh volume of its Memoirs, of which OF ARTS AND SCIENCES : JUNE 14, 1870. 243 the later work is a development. He had reason to believe that the omission would be supplied. The Vice-President and Professors Parsons and Holmes were appointed a committee to consider whether the cost of printing Professor Lovering's memoir upon the Aurora Bo- realis could rightly be defrayed from the Rumford Fund, and also what disposition should be made of any proceeds which might accrue from the republication by the Academy of Count Ptumford's works. It was voted to appropriate one hundred and fifty dollars to be expended by the Library Committee, and three hundred and fifty dollars to be expended by the Committee on Publica- tions. Mr. Porter C. Bliss made a communication on the Ethnol- ogy of the Indian tribes of the southern part of South Amer- ica. The President read by title the following papers : — 1. Reconstruction of the Order Diapensiacecc. By Asa Gray, The name of this group was first used by Link, for a tribe of Com volrulacece, — which was wide of the mark. But the order was founded by Lindley in 1836 (Introd. Nat. Syst. ed. 2). The two genera and species of which it was constituted, however, have on the one hand been appended to Ericaceae, as by Endlicher and Dr. Hooker, or on the other referred to Polemoniacece, as by Don, Fries, and Alph. DeCan- dolle. Decaisne, indeed, keeps up the order (Decaisne and LeMaout, Triiite Gen. Bot.) ; but as he intercalates it between the Pyrolece and Vaccinece, admitting those and kindred groups as orders, his view coin- cides with that of Endlicher and Hooker. In the second and subse- quent editions of the Man. Bot. N. United States, I had followed the other course. But, after an attentive study of the Polemoniacece of the Northern hemisphere, I can no longer recognize the relationship. The plants in question have neither the gamophyllous calyx, nor the convo- lute aestivation of the corolla, nor the usually three-cleft style, nor the hypogynous disk, nor the pretty large embryo with flattened or folia- ceous cotyledons of Polemoniacece; nor do the latter anywhere show an approach to the stamens of Diapensia. That these points of differ- ence from Polemoniacece are all, with one exception, points of agree- 244 PROCEEDINGS OF THE AMERICAN ACADEMY ment with Ericacece, must be conceded, as also the similarity of habit. But the complete absence of an hypogynous disk, and the insertion of the stamens upon (instead of with) the corolla, are characters which ought to weigh heavily, in the absence of all the peculiar marks of Ericacece, — such, for instance, as the indusiate stigma, tetrahedral pol- len, &c. Dr. Hooker, after due mention and consideration of these points (in Kew Jour. Bot. 9, p. 372), yet finds, in his remarkable genus Diplarche, strong evidence of a transition between Diapensia and Loiseleuria, his genus having one set of stamens adnate high up on a corolla which much resembles in shape that of Diapensia Lapponica. But Diplarche exhibits the disk, the stigma, and the pollen characteris- tic of Ericacece, and has neither the filament nor the anther of Dia- pensia and Pyxidanthera. There is a genus, however, which accords with these in the whole gen- eral structure of the flower, and even in that of the filament and anther. This is Shortia, Torr. & Gray, published, upon most imperfect charac- ters, at the close of an article of mine in the American Journal of Science and Arts, vol. 42, in the year 1841, two years earlier, apparently, than the fully characterized Schizocodon of .Siebold and Zuccarini. The his- tory of this genus, and of the identification of the almost .unknown Alleghanian plant with that of Japan, is given in the following note,* * "At the end of the separate herbarium of Michaux, in the museum of the Jardin des Plantes, Paris, is preserved a specimen, ticketed, 'Hautes montagnes de Carolinie, an Pyrola spec. ? an genus novum 1 ' The scapes bear the dehiscent capsule, tipped with a style, and surrounded by the sepals ; the corolla and stamens are absent. A sketch of the specimen, a leaf, and the summit of one of the scapes were obligingly presented to me by Professor Decaisne. With more zeal than judgment, I drew up the characters from this unique and incomplete specimen, and in this Journal for January, 1841, in a note to an account of a botanical excursion to the mountains of North Carolina, I published the plant under the name of Shortia galacifolia, Torr. & Gray. Contrary to my hopes and expectations, the plant has not yet turned up in its native haunts. The late Dr. Short, who has since gone to his rest, deserved better commemoration at our hands than this emp- ty name of a most obscure plant. Indeed, our botanists, applying the old law maxim, De non apparentibus et de non existenlibus eadem est ratio, are not unreason- ably doubting if there ever was any such plant. Some lucky botanist will proba- bly rediscover it in the region around the Black Mountains. What I have now to announce is, that the genus is found, and probably the very species, in a widely distant region indeed, but just where, after all we have been learning, it was not unnatural to expect it. " In the vear 1843, if I mistake not (I cannot at this moment ascertain the exact OF ARTS AND SCIENCES : JUNE 14, 1870. 245 which was published in the Journal above mentioned, in the year 1867. Finally Galax of Linnaeus, — a genus of undetermined affinity, — as I now perceive, has its floral peculiarities and its relationship ex- plained upon comparison with Shortia or Schizocodon. Its corolla (still somewhat gamopetalous, as Baillon remarks in Adansonia, 1, p. 196) is deeply parted ; and the stamens with the interposed squamula?, or sterile series of stamens, are connate into a tube, which not a little resembles the corolla of Diapensia, the fertile stamens occupying the sinuses of its petaloid divisions instead of those of the corolla. The style also is short, and there is no persistent columella in the axis of the capsule. Galax has been referred to Pyrolacece ; but the points of resemblance are few, and the differences many and great, in corolla, androecium, style, seeds, &c. If, then, these two outlying genera are truly related to Diapensia, as I suppose them to be, the group which they compose will hardly be referred to Ericaceae. As a distinct small order, Galax included, the name Diapensiacece should be preferred to Galacinece. For Don's order Galacinece, though the earlier in date, was a thoroughly hetero- geneous assemblage. The diagnoses of the genera here brought together are as follows : — date, none being given in the separate issue), the late Professor Zuccarini published a plant from the mountains of Japan under the name of Schizocodon soldanelloides ; and Dr. Maximowiez last year added two other species, S. ilicijblius, which he thinks too closely resembles the original species, and S. imiflorus. Of the latter, as well as of S. soldanelloides, Dr. Maximowiez has obligingly supplied me with speci- mens. S. unijlorus appears to differ (and perhaps too little) from the original spe- cies chiefly in the single-flowered scape, broader bracts, broader and more numer- ously-nerved sepals, and more slender style. Of this as of Shortia galacifolia, the corolla and stamens are unknown. Until these parts are found, and prove to be different, 1 may venture to assume that the two are identical ! " Dr. Maximowiez, the latest and best botanical explorer of Japan and the adja- cent regions northward, and whose excellent specimens have been liberally supplied to some of the principal herbaria of this country (where they are most interesting), is sedulously engaged upon a Flora Japonica. It should be left for him to decide which generic name should be adopted, the earlier and incomplete or the later and complete one. " As to the affinities of the genus, I had thought mostly of Galax, itself of un- detected relationship. The fringed Soldanel!a-like corolla and the similar foliage are unaccompanied by any other structural resemblances. Zuccarini simply refers the genus to Polemoniacece ; and I will add that its nearest known relative is Dia- pensia." 246 PROCEEDINGS OP THE AMERICAN ACADEMY Ord. Diapensiace^e, Lindl. (auctus.) Herba? perennes, nunc suf- fruticuloso-perennantes, alternifoliae, pentamera?, gamopetala? ; calyce 5-sepalo persistente corollaque hypogynis a?stivatione quincuncialibus ; staminibus corolla? adnatis laciniis ejusdem alternis, filamentis sa?pius dilatatis, antherae loculis horizontaliter vel oblique bivalvibus ; polline simplici ; disco plane nullo ; ovario (ima basi lata cum calycis fundo levissime concreta) 3-(raro 4-) loculari ; stylo unico; stigmate subtrilobo nudo ; ovulis indefinite numerosis in placentis axilibus anatropis vel amphitropis ; capsula loculicida ; semiiiurn testa reticulata nucleo con- formi vel relaxata ; embryone parvo tereti in albuinine carnoso, cotyle- donibus brevissimis. Tribus I. Diapensie^e. — Filamenta petaloideo-dilatata, corolla? campanulatn? usque ad sinus adnata ; sterilia nulla: anthera? bilocu- lares. Placenta? crassa? columella? pei"sistenti adnata?. — Planta? suffru- ticuloso-ca?spitantes, depressa?, sempervirentes, foliosissima? ; foliis parvis sessilibus enervibus integerrimis ; floribus terminalibus solitariis. 1. Pyxidanthera, Michx. Calyx pluribracteatus. Antbera? loculi rima transversa bivalves, valvula inferiore cuspide appendiculata. Ovula in loculis plurima, ampbitropa. Semina subglobosa, testa nucleo con- formi. — Laxe repenti-cavpitans, flore inter folia rosulata- sessili. — P. barbulata, Micbx. Fl. 1, t. 17; Gray, Bot. Text Book, ed. 3, cum ic. xyl. ; Lindl. Veg. Kingd. p. 606, cum ic. xyl. ; Bot. Mag. t. 4592. 2. Diapensia, L. Calyx 2-3-bracteatus. Anthera? mutica? loculi basi divergentes obliqui, rima descendente bivalves. Ovula in loculis numerosissima, anatropa. Semina subcubica, testa nucleo subconfonni. — Pulvinato-ca?spitantes, pedunculo saltern fructifero evoluto scapifor- mi. — D. Lapponica, L. (Decaisne & LeMaout. Trait. Bot. p. 235, cum ic. xyl. opt.) 2 D. Hijialaica, Hook. f. Kew Jour. Bot. p. 372, t. 12. Tribus II. Galacine^e. — Filamenta fertilia (complanata) cum totidem sterilibus vel squamulis alternis connata, veldiscreta. Anthera? mutica?. Ovula anatropa. Semina sursum imbricata, testa relaxata, ad chalazam producta. — Herba? acaules ; foliis longe petiolatis rotnndato- cordatis plus minus dentatis venosis perennantibus scapisque elongatis racemoso-uni-multifloris e rbizomatibus repentibus ortis. 3. Shortia, Torr. & Gray, 1841, (Schizocodon, Sieb. & Zucc. 1843.) Corolla infundibuliformi-campanulata, 5-loba ; lobis fimbriato-multifidis. OF ARTS AND SCIENCES : JUNE 14, 1870. 247 Stamina discreta : filamenta fertilia usque ad fauceru (sub sinubus) ad- nata : antbera? biloculares fere Diapensice, loculis connectivurn margi- nantibus demum transversis. Squamuke seu filamenta sterilia oppositi- petala corolla? supra basim inserta, lineares. Stylus elongatus. Semina in placentis amplis columella? persistenti adnatis numei'osissima, sur- sum imbi'icata, oblique ovata, ad cbalazam obtuse apiculata. — Folia repando-dentata, sa?pius retusa, laxe venosa. Scapus uni-pauciflorus, superne squamoso-bracteatus, bracteis sepalisque demum cbartaceis nervosis. — S. galacifolia, Torr. & Gray in Sill. Jour. 1. c. — Schi- zocodon soldanelloides, Sieb. & Zucc, Act. Acad. Monac. 1843, t. 2, f. 1, S. ilicif alius et S. uniflorus, Maxim, aut species peraffiues, aut in unicam conjungenda? ? 4. Galax, L. Corolla 5-partita, lobis obovato-spatbulatis integer- rimis. Stamina 5 fertilia cum sterilibus squamulisve in tubum basi corolla? adnatum apice 10-dentatum connata, dentibus subspatbulatis, fertilibus quam sterilia brevioribus et apice latioribus antheram uni- locularem tranversim bivalvem introrsum adnatam gerentibus. Stylus brevissimus. Placenta? ab axi sa?pius tripartibili dissepimentis adnata secedentes. Semina plurima, angusta, sursum longe attenuata. — Folia crebre dentata, reticulata. Scapus nudus, racemum multi- et parvi- florum gerens ; bracteis minimis fere obsoletis. — G. aphylla, Linn. Erythrorhiza rotandifolia, Michx. Fl. 2, p. 35, t. 36. 2. Revision of the North American Polemoniacece. By Asa Gray. I. Stamina incequaliter inserta. 1. PHLOX. Corolla Irrpocraterimorpha. Filamenta brevia, inclusa. Ovula in loculis 1-5. Semina sub aqua imrautata, tegumento simpliei albumini adha?- rente. — Folia integerrima, saltern inferiora opposita. 2. COLLOMIA. Corolla aut hypocraterimorpha aut infundibuliformis. Fila- menta gracilia, soepius exserta. Ovula in loculis solitaria, pauca, vel pluri- ma. Semina humefacta mucilaginosa spirillifera. — Folia omnia vel plera alter- na, saepius pinnatipartita vel incisa. II. Stamina cequaliter inserta. Semina humectata plerumque spirilli- fera vel mucilaginosa. 3. GILIA. Corolla a hypocrateriformi ad subrotatam. Filamenta haud dccli- nata inappendiculata. — Folia varia. 4. FOLEMOXIOI. Corolla ab infundibuliformi ad rotatam. Filamenta gra- cilia, plus minus declinata, basi piloso-appendiculata. Folia alterna, pinna- tisecta. 248 PROCEEDINGS OF THE AMERICAN ACADEMY These are the best diagnostic characters to be had for the Polemoni- aceous genera with which we have here to do. One other, Lceselia, is not unlikely to be found along our Mexican frontier. The genera at first sight would appear to be more obviously and strictly limited than they actually prove to be ; and, except for certain connecting forms, their number might be properly increased by the severance of one polymorphous genus into several, which, for the want of a little ex- tinction, just fail to establish their characters. These plants may also interest the philosophical botanist in another particular, namely, in what seems to be the indications of an incipient dimorphism, discernible in sundry species, but in none of them, perhaps, completely carried out into reciprocally long and short filaments and style. For instance, in some species of Gilia, section Leptosiphon, the style is long in some individuals and short in others, while the stamens are uniform ; on the other hand, at least in one species of the section Ipomopsis the stamens are exserted in some individuals and included in others, with little or no obvious difference in the style. In view of these facts, we may sus- pect that the two sorts of style which Professor Thurber and Profes- sor Torrey have detected in the genus Phlox (namely, that more than half the species have a long style, so that the stigmas are often ex- serted, while the rest have very short ones, bearing the stigmas low down in the tube of the corolla) are somehow of dimorphic nature. Yet it is only in P. subulata that I have seen both long and short styles ; and here the short-styled plant has (irrespective of this charac- ter) been described as a distinct species (P. nivalis, P. Hentzii), and is apt to have a pair of ovules in each cell, while the long-styled P. subu- lata rarely shows more than one. Moreover, in the Speciosa group this character of the style really furnishes one of the most available specific distinctions. "Whatever view be taken of it, the case may properly be compared with that of certain species of the generally dimorphic genus Primula, mentioned by Mr. Scott (in Jour. Linn. Soc. 8, p. 80), which, so far as known, are either long-styled or short- styled without their complementary fellow. Similarly the two species of Gilia composing the group which I have named Giliandra might be regarded as the long-stamened form, of which the short-stamened counterpart is unknown or non-existent. A state of things which, al- though singular, is intelligible upon the doctrine of the gradual evolu- tion of specific and dimorphic differences. OF ARTS AND SCIENCES : JUNE 14, 1870. 249 1. PHLOX, L. Corolla hypocraterimorpha, ore angusto. Stamina tubo valde inas- qualiter insert a : filamenta brevissima vel brevia, inclusa. Stylus nunc elongatus, faueem ada?quans vel superans, nunc brevissimus. Ovula in loculis 1, 2, rarissime 3-5. Semina sub aqua iramutata, tegumen- to simpliei albumini adha?rente nee mucilagine nee spirillis pra?dito. — Herba? vel suffruticuli Amer. Borealis, foliis integerrimis, caulinis sessilibus oppositis summisve alternis, corollas a?stivatione niaxime con- volutiva. § 1. Latifolice, Perennes, America? Boreali-Orientales, uniovulatae. * Thyrsi 'florce ; cymulis compactis in paniculam floribundam vel thyrsum digestis, pedicellis brevissimis ; caule elato stricto ; corol- la? lobis integerrimis. 1. P. paxiculata, L. P. paniculata (forma pubescens) & P. acu- minata, Pursh, Benth. in DC. P. undulata, Ait. P. Sichnanni, Lehm. P. scabra, Sweet, Brit. Fl. Gard. t. 248. P. cordata, Ell. ; Brit. Fl. Gard. n. ser. t. 13. P. corymbosa, Sweet, 1. c. t. 114, a rough-pubescent form. P. glandulosa, Shuttleworth, coll. Rugel, pubescent form. 2. P. maculata, L., Jacq. Yind. t. 127. P. pyramidalis, Smith, Exot. 2, t. 87 ; Brit. Fl. Gard. t. 233 ; very floribund cultivated state. P. odorata, Sweet, Brit. Fl. Gard. t. 224. P. rejlexa, id. t. 232 (hybrid). P. penduliflora, Sweet, 1. c. n. ser. t. 46. P. suaveolens, Ait. Kew. ; form with white flowers and stem often spotless, to which belong P. tardiflora, Penny ex Benth., and P. longijlora, Sweet, Brit. Fl. Gard. ser. t. 31. * * CorymboscB ; cymulis corymbosis nunc simplicibus ; caulibus erectis vel patentibus ; corolla? lobis latis integerrimis vel obeor- datis. -K- Glaberrimce, nitida?, erecta? vel adscendentes ; calycis lobis latis ; corolla? lobis rotundatis integerrimis. Rarius corymbo vel caule scabro-puberulo. 3. P. ovata, L. Sp. ed. 1, p. 152. Caulibus e basi decumbente vel repente adscendentibus (subpedalibus) ; foliis ovatis nunc oblongo-lan- ceolatis summisve subcordatis, infimis in petiolum angustatis ; calycis dentibus brevibus ovatis seu lato-lanceolatis acutis. — Bot. Mag. t. 528. P. Carolina, var. ovata, Benth. in DC. P. latifolia, Michx. Fl. 1, p. 143. — Var. elatior ; foliis lato- seu ovato-lanceolatis, calycis denti- vol. vin. 32 250 PROCEEDINGS OF THE AMERICAN ACADEMY bus acutatis. P. Carolina, L. Sp. ed. 2. P. trijiora, Brit. Fl. Gard. t. 293. Open woods, &c, upper country of Alabama and Carolina along the Alleghanies to Huntingdon Co., Penn.f Porter. — P. ovata is the earlier name (although rendered somewhat obscure by the char. " floribus solitariis," which was taken from Plukenet's figure), and is the more to be preferred as the original of P. Carolina is one of those forms which seem to pass gradually into P. glaberrima. The Carolin- ian specimens of " Gray and Carey," referred in the Prodromus to P. glaberrima, are clearly of the present species. 4. P. glaberrima, L. Caulibus gracilibus erectis (1 - 2-pedali- bus) ; foliis lineari- nunc oblongo-lanceolatis summisve anguste ovato- lanceolatis superne sensim angustatis acuminatis firmioribus subaveniis margine subrevolutis, pagina superiore nitida ; calycis dentibus trian- gulari- seu lanceolato-subulatis acutissimis. — Brit. Fl. Gard. n. ser. t. 36. P. glaberrima & P. Carolina var. nitida & puberula, Benth. in DC. P. trijiora, Michx. ; forma corymbo ramosiore laxiore. P. nitida, Pursh. P. suffruticosa, Willd. Enum. ; Bot. Reg. t. G8. P. carnea, Sims, Bot. Mag. t. 2155 ; Lodd. Bot. Cab. t. 711. P. Carolina, Walt.; Sims, Bot. Mag. t. 1344, var. caule scabro-puberula. P. revo- luta, Aikin in Eaton Man. — Prairies and open grounds, Ohio and Wisconsin to Florida and Louisiana. "*"" -i— Pilosoe seu Glandulosce ; caulibus floriferis erectis vel patenti- bus ; calycis pi. m. pilosi ssepius viscidi dentibus elongatis angustis seu angustissimis ; corollas lobis nunc retusis vel obcordatis. +-»■ Estolonosa3. 5. P. Floridana, Benth. in DC. Caule stricto bipedali cum foliis lineari- seu oblongo-lanceolatis rigidulis pilosulo vel glabello apice cum corymbo glanduloso, calycis glandulosi dentibus lanceolato-setaceis ; corollae lobis obovatis integerrimis. — Chapm. Fl. p. 339. P. Caro- lina, Sweet, Brit. Fl. Gard. t. 190 ? — Dry open woods, Florida, Chap- man, Rugel, &c. Distinguished from P. glaberrima by the much longer and narrower teeth of the glandular-pubescent calyx. G. P. pilosa, L. Caule erecto gracili (1 -2-pedali) cum foliis lan- ceolatis linearibusque (saspius a basi sessili ad apicem sensim attenua- tis) villoso piloso vel pubescente nunc glabrato ; corymbo demum aperto ; calycis aut hirto-villosi aut pubescens subviscidi dentibus elon- gato- vel tenuissime subulato-setaceis superne nunc arisliformibus ; corollas lobis obovatis integerrimis. — Bot. Mag. t. 1307; Lodd. Cab. OF ARTS AND SCIENCES: JUNE 14, 1S70. 251 t. 1251. P. aristata, Michx. ; Lodd. Cab. t. 1731 ; Torr. Fl. N. Y. 2, t. 80. — New Jersey to Saskatchawan, Florida, and Texas. Variable in foliage, pubescence, &c. Var. detonsa : forma gracillima, sa?pius angustifolia, la?vis, corymbo calyceque moilici? parurave pubescentibus. — P. aristata, Benth. pro parte. — Florida, Alabama, Louisiana, Texas. 7. P. amcexa, Sims. Pube molli rarius hirtella pi. m. villosa ; cau- libus adscendentibus simplicibus (G — "15-pollicaribus) ; foliis erectiuscu- is oblongis lanceolatis seu lineari-lanceolatis acutiusculis obtusisve, sum mis corymbum compactum bracteantibus ; ealycis dentibus anguste subulatis acutissimis vix aristatis ; corolla? lobis obovatis integerrimis raro emarginatis. — Bot. Mag. 1. 1308. P. pilosa, Walt., Michx. &c. non L. P. pilosa ? var. Walteri, Gray, Man. ed. 2. P. Walteri, Cliapm. Fl. p. 338. P. procumbens, Gray, Man. ed. 5, vix Lehm. P. involucrata, Nutt. herb. — Barrens, dry bills, &c, Virginia and Kentucky to Florida. Some forms nearly approach P. pilosa, with which it has been confounded, especially when P. aristata has been regarded as distinct. ++ ++ Substolonifera?, e basi caules steriles reptantes vel decumbentes proferentes : folia breviuscula lata. 8. P. divaricata, L. ; Bot. Mag. t. 163. P. Canadensis, Sweet, Brit. Fl. Gard. t. 221. Corolla? lobi obcordati vel cuneati emarginati, nunc, in Var. Laphamii, Wood, integerrimi. P. glomerata, Nutt. herb. P. glutinosa, Buckley in Sill. Journ. 45, p. 177, as to the specimens, but the char. " flowers bright red or scarlet," must belong to some- thing else, perhaps to some confusion of memory. 9. P. reptans, Michx. ; Vent. Malm. t. 107. P. stolonifera, Sims, Bot. Mag. t. 563 ; Sweet, Brit. Fl. Gard. n. ser. t. 293. Both names date from the year 1803. P. crassi folia, Lodd. Bot. Cab. 1. 1596. As Dr. Torrey has noted, this species has a long, often exserted style, the preceding a very short one, — characters we may suspect to be related to dimorphism ; but if so the counterpart form has not been observed. * * * Sparsiflorce, linearifolia?, bundles, diffusa? ; corolla? pallide violacea? lobis cuneatis in segmenta angusta (linearia seu ob- longa) bifidis. 10. P. bifida, Beck. ; Gray, Man. Pubescens ; foliis nunc glabra- tis ; corolla? lobis ultra vel ad medium usque in segmenta sublinearia bifidis. — Prairies of Illinois and Missouri ; in spring. 252 PROCEEDINGS OF THE AMERICAN ACADEMY 11. P. Stellaiua, n. pp. Glaberrima, easspitosa, basi subperen- nante; foliis angusto-linearibus rigidulis, superioribusbasi parum ciliatis; pedunculis plerumque unifloris elongatis ; corollas " pallide cocrulea3 nunc fere albas" lobis apice in segmenta brevi-oblonga bifidis. — " Cliffs of Kentucky River (probably above Lexington), in the fissures of the most precipitous rocks," found only by the late Dr. Short, May 1, 1829. The station should be rediscovered. Flowers as large as those of the foregoing species. Named from the resemblance to a Stettaria both in foliage and blossoms. § 2. Subulatce, Suffrutriculoso-perennantes, Cis-Missisippiance, sem- pervirentes, uni-biovulatas ; foliis fasciculatis ; corollas lobis tantum obcordatis. (P. procumbens, Lehm. Ind. Sem. Hamb. 1828 ; Sweet, Brit. Fl. Gard. n. ser. t. 7 — referred by Bent ham to P. subulata var. latifolia, — in some specimens nearly approaches P. subulata, in others is more like P. amcena, for which in Manual, ed. 5, I mistook it. It is unknown as an indigenous plant, and is probably a hybrid of the two species above mentioned.) 12. P. subulata, L. P. subulata & P. setacea, L. Chiefly with long style and solitar}' ovules. — P. nivalis, Lodd. Bot. Cab. t. 780; Sweet, Brit. Fl. Gard. t. 185 ; form with short style, ovules com- monly, but not always, in pairs (rarely 3) in each cell, and corolla white. P. aristata, Lodd. 1. c. t. 1731. P. Hentzii, Nutt., with white corolla, its lobes entire or nearly so, short style, and, in Nuttall's specimens, solitary ovules. — Dry open ground, New York to Michigan and Florida. § 3. Occidentals (transmontanas et montanas), suffrutescentes vel suffruticulosas, raro a basi usque herbaceas, uni-triovulatas ; ramis uni - paucifloris ; foliis plerumque angustis vel parvis margine saspius pi. m. cartilagineo-incrassatis. Species difficillimas ut vide- tur inosculantes. * Pulvinato-ccespitosce, suffruticuloso-perennantes, sempervirentes ; foliis brevibus nunc minimis usque ad flores solitarios (sessiles, in postrema nunc brevi-pedunculatos) confertis imbricatisve ac fas- ciculatis basibus scarioso-connatis, vetustis marcescentibus ; ovulis solitariis. Species a minimis imbricatifoliis ad laxiores patenti- folias ordinate. -i— Folia saltern ad margines pilis arachnoideis instructa, OF ARTS AND SCIENCES : JUNE 14, 1870. 253 ++ Brevissima, latiuscula vel squamiformia, imbricata, mollia, tan- tum raucronata. Plantas pulvinatae musciformes ; corollas lobi integerrimi. 13. P. Richakdsonii, Hook. Fl. 2, p. 73, t. 160. Laxius pulvi- nata ; foliis oblongo-lanceolatis (lin. 3 longis) parcius lanigeris margini- bus incrassatis raox reflexis imbricatis, vetustis laxe patentibus ; corollas " laste lilacinas," tubo calycem dimidio excedente, lobis late cuneato- obovatis lin. 3 longis. — Arctic sea-sbore. 14. P. brtoides, Nutt. PL Gamb. p. 153. Densius pulvinata, mini- ma, facie Selaginellam rvpestrem referens, copiose mollissime lanata ; ramulis discretis ; foliis arete quadrifariam imbricatis squamasformibus ovato- seu triangulari-lanceolatis (sesquilineam longis) etiam marces- centibus creberrime appressis, marginibus subinflexis ; corollas tubo calycem modice superante, lobis cuneatis sesquilineam longis. — Di- viding ridge of the Rocky Mountains (about lat. 42°), Nuttall. 15. P. jiuscoides, Nutt. Jour. Acad. Philad. 7, p. 42, t. 6, p. 2 Prascedenti similis, Bryum aliquid canescens referens ; ramis brevibus confertissimis ; foliis minus stricte quadrifariis parcius lanatis ovato- lanceolatis parum mucronulatis (sesquilineam longis) ; corollas tubo calycem baud superante. — Rocky Mountains at the sources of the Missouri River, Wyeth. -t-t- -H- Folia rigidiora, subulata, subacerosa (lin. 3-4 longa), minus appresso-imbricata. Plantas late casspitantes, corollis ut videtur albis. 16. P. Hoodu, Richards. Appx. t. 28. Parcius lanata, glabrata; foliis erectis ; corollas tubo calycem baud superante, lobis obovatis in- tegris, 2-2-1- lin. longis. — Through the Saskatchavvan region from lat. 54° to the Rocky Mountains about lat. 44°. 17. P. canescens, Torr. & Gray, Pacif. R. R. 2, p. 8, t. 6. Magis lanata, canescens ; foliis e basi appressa mox patentibus vel subsquarroso- recurvis ; corollas tubo calycem pi. m. saspius dimidio superante, lobis obovatis integris vel emarginatis lin. 3-4 longis. — Rocky Mountains of Colorado and throughout Utah to New Mexico and the Sierra Nevada. h— -i— Folia rigidiora marginibus basi saltern hirsuto- vel hirtello- ciliata, nunc nuda. 18. P. c^spitosa, Nutt. 1. c. t. 6, f. 1. Dense seu laxiuscule cass- pitosa ; foliis rigidis lineari-subulatis seu oblongo-linearibus (lin. 4-6 254 PKOCEEDINGS OF THE AMERICAN ACADEMY longis) crebris vel creberrimis hispido- vel hirtello-ciliatis casterum glabris vel parce hirtello-glandulosis ; corolla? tubo calycem parum superante, lobis obovatis integris lin. 3 longis. — Var. rigid A : depressa ; foliis aceroso-subulatis deraum recurvo-patentibus parce glanduloso-hir- tellis. P. rigida, Bentb. in DC. — Var. condensata : pulvinato- coespitosa ; foliis brevibus (lin. 2-3 longis) creberrime arrecto-imbrica- tis. P. Hoodii, var. Gray, Enum. PI. Parry. (298) in Sill. Jour. — Rocky Mountains, Colorado to Montana, Oregon, and high Sierra Nevada. 19. P. Douglasii, Hook. Caaspitoso-ramosissima, pubescens vel glabella ; foliis rigidulis acerosis saspius patentibus minus crebris, mar- ginibus aut nudis aut basi hirsutiusculo-ciliatis ; flore subsessili ; co- rolla? (purpureae seu alba?) tubo calycem pi. m. superante, lobis obovatis integris lin. 3 longis. — Hook. Fl. 2, p. 73, t. 158. — Var. diffusa: rarnis procumbentibus foliisque laxioribus patentibus minus rigidis. — Var. longifolia : ramis saspius erectis e rhizomate prostrato ; foliis angustissime vel aceroso-linearibus lin. 5—8 longis minus fasciculatis. P. Hoodii, Torr. Ann. Lye. 2, p. 220, & in Frern. Rep. P. Sibirica, Hook. Kew Jour. Bot. 3, p. 290. — High plains and mountains, Mon- tana, Colorado, and Utah, west to the Sierra Nevada and the Cascades; the var. diffusa on the Pacific slopes from the Yosemite to lat. 49°, the var. longifolia east of the Rocky Mountains and in Utah. This makes nearly a transition to P. longifolia, Nutt. One of Nuttall's specimens of this form, named by him P. andicola, exhibits, along with flowers having the usual inequality in the stamens, one or two with stamens perfectly equally inserted in the throat of the corolla ! * * Speciosce, basi tantum lignosaa nunc herbaceaa, multicipites vel laxe casspitantes ; foliis vulgo longioribus linearibus lanceolatisve raro subovatis laxis nee parumve fasciculatis ; floribus solitariis vel subcymosis longius pedunculatis ! •i— LongistylcB.* ++ Frigidce; foliis caulibusque laxe coespitantibus subflaccidis. * The character of the style — in this division elongated and frequently equal- ling the tube of the corolla, in the other hardly exceeding or even equalling the ovary and the stigmas — may be suspected to be dimorphic, as I have supposed to be the case in P. subulata. But in this group there is no evidence of it ; and the character is most convenient and useful in the arrangement of these otherwise almost inextricable Western Phloxes. OF ARTS AND SCIENCES ! JUNE 14, 1870. 255 20. P. Sibirica, L. Bi-quadripollicaris, piloso-pubescens ; foliis angusto-linearibus margine srepius villosulis ; pedunculis nudis uniflo- ris ; corolla? tubo lobis suis obcordatis retusisve calycique a?quilongo vel paullo longiore ; ovulis in loculis binis. (Gmel. Fl. Sib. 4, t. 46, f. 2.) Trautv. Imag. Fl. Russ. t. 24. — Kotzebue's Sound and E. Siberia. ++ ++ Temperatxz ; foliis cum caulibus basi sufFruticosis erectis vel adsurgentibus rigidulis: corolla alba seu rosea, tubo lobos caly- cis angusto-subulatos superante. a. StenophyllcB : calycis tubus ad basim usque membranulis intercos- talibus scariosis mox replicatis saepius angulatus. 21. P. linearifolia. Glaberrima vel superne nunc hirtello-pu- bens, spithamaea ad pedalem, corymboso-floribunda ; foliis angustissime linearibus (1 — 2-pollicaribus) ; calycis tubo e basi lata inter costas exi- mie membranaceo-angulata quasi pyramidato, dentibus aceroso-subula- tis ; corollas tubo calycem paullo excedente, lobis obovato-cuneatis inte- gris raro retusis ; ovulis in loculis binis. — P. speciosa var. linearifolia, Hook. Kew Jour. Bot. 3, p. 289, pro parte. P. speciosa, Lindl. Bot. Reg. t. 1351 ; Benth. in DC, non Pursb. — Interior plains of the Co- lumbia River and its tributaries, the Kooskooskie, Clearwater, &c, Douglas, Spalding, Geyer, Burke, Lyall. • 22. P. longifolia, Nutt. Jour. Acad. Philad. 7, p. 41. Glabra vel pubescens, circa spithamaea ; foliis angustissime vel angusto-linearibus (1 -2^-pollicaribus) quandoque lanceolatis ; corollae lobis obovato- seu oblongo-cuneatis integris retusisve ; ovulis in loculis fere semper solita- riis. — P. speciosa, p. Hook. Fl. 2, p. 72, &c. P. humilis, Dougl. in Benth. 1. c. — a small form, with shorter peduncles, sometimes appar- ently passing into P. Douglasii, var. longifolia. — Var. Stansburyi : validior ; pube ramorum calycisque pi. m. glandulosa seu viscosa, foliis vulgo latioribus; corollae tubo calyce saepius duplo longiore, lobis apice nunc emarginatis nunc erosis ; loculis 1-2 ovarii quandoque biovu- latis. P. speciosa, var. ? Stansburyi, Torr. Bot. Mex. Bound, p. 145. — Forma brevifolia, nana ; foliis nunc angusto- nunc oblongo-lan- ceolatis semipollicaribus. ■ — Rocky Mountains to the Cascades and Sierra Nevada, and from Washington Territory to Nevada and Utah. The var. Stansburyi and its short-leaved form chiefly in the southern districts, and extending into New Mexico and Arizona. This also has usually uniovulate cells, but with one or two (rarely perhaps all three) cells sometimes 2-ovuled. 256 PROCEEDINGS OF THE AMERICAN ACADEMY b. Brachyphyllce : calyx sinubus scariosis vix replicatis subteres. 23. P. adsurgens, Torr. in herb. Praeter inflorescentiam glabra ; caulibus diffusis adscendentibus gracilibus (subpedalibus) ; foliis ovatis seu ovato-lanceolatis acutis semipollicaribus plerumque internodiis mul- to brevioribus ; pedunculis subcymosis calyceque glanduloso-pubescen- tibus ; corolla? tubo calyce subduplo longiore, lobis obovatis integris ; ovarii loculis uniovulatis. — " Canon Pass, Oregon," Prof. A. Wood. — Tube of the corolla nearly an inch, its lobes five lines, long. Style exserted. — Peculiar as this appears, some of the short-leaved forms referred to the preceding species make an approach to it. -l— -h- Brevistylce, nempe stylo quam stigmata ovariumque vulgo breviore. Calyx membranulis intercostalibus baud replicatis cjlindraceus, lobis subulatis. 24. P. speciosa, Pursh. Subviscoso-puberula vel glabrata, 1-4- pedalis ; ramis e basi lignosa decumbente adsurgentibus ; foliis lanceo- latis seu linearibus (sesqui-bipollicaribus), supremis basi plerumque dilatatis ; floribus corymbosis ; corollas rosea? seu alba? tubo calycem parum superante, lobis obcordatis ; ovulis in loculis solitariis. Pursh ! Fl. 1, p. 149. P. speciosa, var. latifolia, Hook. Kevv Jour. 3, p. 289. P. occidentalis, Durand in Pacif. R. P. 4, p. 125, forma latifolia. — Interior plain of the Columbia, Washington Territory, to the foot hills of the Sierra Nevada, California. — Determined from an original specimen of herb. Lamb., now of herb. Kew, collected on the " Plains of the Columbia, about 4 feet high, May 7, 1806," Lewis and Clarke: although injured, the obcordate lobes of the corolla are con- spicuous. Corolla in the larger specimens an inch or even more in diameter. Var. Sabini : corolla? lobis obovatis basi cuneatis integerrimis vel retusis. — P. speciosa, var. elatior, Hook. Fl. 1. c. P. Sabini, Dougl. in Hook. & Benth. 1. c. — Spokan River, Washington Territory. Var. Woodhousii: nana; foliis linearibus basi nee dilatatis; flori- bus dimidio minoribus ; corolla? lobis cuneatis obcordatis. — P. Wood- housii, Torr. ined. P. nana, Torr. Sitgreaves Rep. p. 165, non Nutt. — Arizona (lat. 35°, long. 112° 20'), Woodhouse in Sitgreaves Exped. 25. P. nana, Nutt. PI. Gamb. 1. c. Glanduloso-pubescens vel hir- tella, nunc glabrata, e basi frutescente patenti-ramosa, spithama?a ad pedalem ; foliis linearibus, ramealibus sa?pe alteruis ; floribus sparsis ; OF ARTS AND SCIENCES : JUNE 14, 1870. 257 corollas " rubrae " roseas vel " albas " tubo calyceni paullo superante, lobis amplis latissime cuneato-obovatis integris nunc erosulis ; ovuli's in loculis 3, rarius binis. P. triovulata, Thurber in Bot. Mex. Bound. p. 145. — Var. glabella : ramis simplicioribus erectis ; foliis angus- tioribus. — New Mexico (near Santa Fe, &c.) and adjacent borders of Texas and Colorado. (No. 1654, Wright, may be added to the num- bers cited in Mex. Bound. Survey ; this and 504 are of the smoothish and more erect variety.) Limb of the corolla commonly an inch, sometimes an inch and a quarter in diameter : apparently a showy species. No state of the plant seen can justly be described as "canes- cently pubescent." ► § 4. Annuce, Texenses, laxe ramosas, plus minus viseoso-pilosas (pilis multiarticulatis plerumque glandula parva terminatis) ; foliis latiusculis, superioribus alternis ; calycis (fructiferi fere ad basim usque fis>i) lobis setaceo-apiculatis mox recurvis vel patentibus ; stylo stigmatibus breviore ; seminibus subalato-angulatis. * Uniovulatce, corymbifloraB. 26. P. Drummondii, Hook. Bot. Mag. t. 3441 ; Bot. Reg. t. 1949, Brit. Fl. Gard. ser. 2, t. 316 (forma parviflora). Folia saspius lanceo- lata seu oblonga, superiora basi subcordata semiamplexicaulia. Var. yillosissima : pilis viscosis longis crebris ; foliis angusto-lan- ceolatis ; floribus magnis subspai*sis. — Texas, in the pebbly bed of the Nueces, Wright, no. 1656. Var. tenuis : spithamasa; pube breviore parciore in foliis plerum- que linearibus basi nunquam dilatatis nunc evanida ; cyma laxiflora ; floribus parvulis ; corollas lobis obovato-cuneatis lin. 2- 4 longis. — Eastern Texas, Berlandier (1822, &c), Drummond (coll. 3, 312), Lindheimer (424), Wright. * * Pluri-(4i - 5-) ovulates, sparsifloras. 27. P. Rcemeriana, Scheele in Linnasa, 21, p. 752. Humilis, e basi laxe ramosa, praster margines foliorum calycisque tubum hirsutos sub- glabra ; foliis lanceolatis oblongis imisve spathulatis, caulinis plerum- que alternis ; corolla rosea ampla, tubo glabro calycis lobos lineares tantum patentes subaequante lobis suis latissime obovatis (lin. 6-9 longis) breviore; capsulas loculis oligospermis. P. macrantka, Buck- ley in Proceed. Acad. Philad. 1862, p. 5. — Not rare in the central district of Texas, Lindheimer, Roemer, Wright, Buckley, Thurber, &c. vol. viii. 33 258 PROCEEDINGS OF THE AMERICAN ACADEMY In describing this remarkable species, neither Scheele nor Buckley mentions the annual root, nor the prevailingly alternate leaves, nor the numerous ovules ; indeed, poor Scheele gives the character " loculis uniovulatis." Dr. Engelman has proposed to transfer this species to Gilia ; but the number of ovules in these genera proves to be a wholly secondary character. 2. COLLOMIA, Nutt. mutatis mutandis. Corolla tubuloso-infundibuliformis vel hypocraterimorpha, fauce ssepius sensim plus minus ampliata. Stamina fauci vel infra faucem incequaliter inserta : filamenta gracilia, saspe exserta. Ovula in loculis solitaria, pauca, vel plurima. Semina humefacta e teguraento simpliei tubulos mucilaginosos plerumque spirilliferos creberrime protrudentia. — Herbae annua?, raro biennes, foliis alternis imisve oppositis sa3pius incisis nunc pinnatisectis. Of the two characters which in the Prodromus distinguish Colhmia from Gilia, namely, the unequally inserted stamens and the solitary ovules, Bentham gave evident preference to the latter, as appears from his removal of C. lieteroplnjlla to Navarretia ; yet uniovulate species are left in Gilia. As it is now abundantly evident that none of our Polemoniaceous genera can be made to rest upon the number of ovules, I rely so completely upon the remaining character that I propose to remove from Gilia to Colhmia two multiovulate species, in which I detect a striking inequality in the insertion of the stamens, and even to add an unpublished species having a much-dilated throat to the corolla. Collomia nudicaulis, Hook. & Arn., has very many ovules, and belongs to the Leptosiphon section of Gilia, although peculiar in its sessile anthers and entire leaves. The " mucilage" so copiously developed on the surface of the seed when immersed in water, and which gave name to the genus, consists of innumerable and most delicate diaphanous tubes, which lengthen wonderfully when wetted. The spiral thread which they contain (on which account they were confounded with " spiral vessels," and which uncoils as the tube softens or dissolves into jelly) is wanting in one species, namely, C. gracilis. In this and in the several following spe- cies, the mucilage cells are beneath a more or less evident pellicle or epidermis, composed of fragile tabular cells, which are thrown off when the former develop and protrude under moisture. But this pel- licle is not obvious in the typical species. OF ARTS AND SCIENCES : JUNE 14, 1870. 259 § 1. EUCOLLOMIA. Ovula in loculis solitaria, in spec, ultima 2-3. Annuae, plu* minus viscoso-pubescentes. — Collomia, cum Navarretia heterophytta, Benth. in Proclr. * GenuincB, simplici- et sessilifoliic, sajpius confertifloraa, calyce ob- conico, corolla angusta. Semina maxime spirillifera. •f- Flores capitato-glomerati, folioso-bracteati, infimi in dichoto- miis nunc subsolitarii. 1. C. coccinea, Lebm., Benth. 1. c. — Chili." 2. C. grandiflora, Dougl. — West of the Rocky Mountains. — Var. tenuiflora, Benth. in DC. : a form with a more slender corolla. Var. cryptantha, Regel : perhaps a sport of cultivation. 3. C. linearis, Nutt. — Both sides of the Rocky Mountains, north to Mackenzie River : also on the shore of New Brunswick, Fowler, perhaps a waif. Var. subulata : spithaniaea, divergenti-ramosa ; foliis lineari-lan- ceolatis seu linearibus utrinque attenuatis ; glomerulis laxiusculis alaribus imis paucifloris nunc unifloris ; calycis lobis e basi lata attenu- ato-subulatis tubo parum longioribus. C. tinctoria, Kellogg in Proc. Acad. Calif. 3, p. 17, t. 2,«ex char. — E. California and W. Nevada, Lobb (1857), Dorr, Stretch; Klamath Valley, Oregon, Kronkrite. And S. Watson collected in Nevada a form so intermediate as to for- bid our regarding it as a distinct species. -*— h— Flores omnes dissiti, in dichotomiis solitarii. 4. C. tenella, n. sp. Viscoso-puberula, e radice exili 3 — 4-polli- caris, pusilla, laxe ramosa ; foliis linearibus uniformibus integerrimis ob- tusiusculis basi longius attenuatis, imis oppositis ; floribus subsessilibus ; calycis lobis triangulatis acutis tubo brevioribus corolla angusta fere hypocraterimorpha dimidio brevioribus. — Nevada, in Wasatch Moun- tains about Parley's Park, Watson in King's expedition. — Flowering almost from the base. Calyx broadly obconical, barely two lines long ; the corolla at length four lines. Leaves about an inch long, all scat- tered. * * Intermedia, cymoso-sparsifloraa ; foliis sessilibus integerrimis, inferioribus saepius oppositis ; calyce fere 5-partito basi obtusis- simo. Semina sub aqua mucilaginosa sine spirillis. 5. C. gracilis, Dougl. Occurs under very various forms in the western parts of North and South America. C. micrantha, Kellogg, 1. c. tig. 3, evidently belongs here. 260 PROCEEDINGS OF THE AMERICAN ACADEMY * * * Giliceformes ; foliis pinnatisectis incisis vel 3 - 5-partitis, inferioribus petiolatis alternis ; calyce basi obtuso ; corolla fere hypocraterimorpha. Seminasub epidermide tenerrima spirillifera. 6. C. gilioides, Benth. Flores subsparsi, staminibus insertione minus inajqualibus. — Var. glutinosa. "Forma corolla ssepius longi- ore, staminibus magis inaequaliter insertis ; ovulis raro binis. C. ylu- tinosa, Benth. Gilia (AllopJtylhim) divariata, Nutt. PI. Gamb. p. 155, a slender form. — These appear to be of one species. The protrusion or inclusion of the stamens is probably an individual character of in- cipient dimorphism, as is evidently the case in the next. — California. 7. C. heterophylla, Hook. Navarretia heteropliylla, Benth., cum syn. Flores pi. m. glomerati ; staminibus valde inasqualibus ; ovu- lis in loculis 2-3. — British Columbia to California. § 2. PHLOGANTHEA. Ovula in loculis plurima (6-12). Filamenta quandoque declinata, turn inaequalia turn inaequaliter inserta. Folia vel segmenta tenui-linearia integerrima. Thyrsi- florae vel sparsiflora?, nee viscidae. Semina ut in prioribus spirilli- fera. * Folia caulina semel pinnati-3 - 7 -partita ; corolla ad faucem usque angusta. 8. C. Cavanillesiana, Don. Biennis vel basi indurata perennis ? pubescens vel puberula ; caulibus ramisve virgatis foliosis ; thyrso angusto saapius racemiformi, pedunculis brevibus glomeruli-floris ; corolla alba " luteo-albicante " Cav. seu purpurascente (semipolli- cari), tubo calyce 2-3-plo longiore superne paullo sensim ampliato, lobis oblongis ; filamentis fauci plerumque subobliquo insertis; antheris rotundis ; ovulis in loculis 5-7. Phlox pinnata, Cav. Ic. 6, p. 17, t. 528. Cantaci glnmeriflora, Juss. Ann. Mus. 2, p. 119. Gilia glomeri flora, Benth. 1. c. G. multijlora, Nutt. pi. Gamb. — Borders of W. Texas, New Mexico, Arizona, and adjacent parts of Mexico. Doubtless (as Bentham suspects) not from Buenos Ayres, and hardly yellow-flowered, although Galeotti's specimens seem to be so, and are noted on the ticket: "fl. orangees." And in our district it is probably more than a biennial. G. Don having referred the species to Col- lomia, it may retain the new specific name imposed by him : he sup- posed the ovules were solitary, and did not notice the obvious inequality in the insertion of the stamens. OF ARTS AND SCIENCES : JUNE 14, 1870. 26l 9. C. Thurberi, n. sp. Biennis ? puberula ; caulibus e basi indu- rata virgatia sesquipedalibus crebre foliosis ; inflorescentia spicato- thyrsiformi fere prsecedentis ; pedunoulis pedicellisque brevissimis ; ealycis lobis tubo suba?quilongis ; corolla " crerulea vel lilacina" hypo- craterimorpha, tubo ultrapollicari sursum sensim parum ampliato lobis orbiculatis calyceque 3-4-plo longioribus ; filamentis fauci rectae insertis; antberis brevi-oblongis ; ovulis in loculis 8-9. Gilia Thurberi, Torr. in herb. — New Mexico, near the copper mines, &c, Thurber. Intermediate between the foregoing and the following, with far larger flowers than the former ; from their size and abundance ap- parently very handsome. 10. C. longiflora. Annua, glaberrima ; foliorum segmentis angus- tissimis elongatis ; caule (subpedali ad bipedalem) paniculato-ramoso laxifloro ; peduuculis unifloris soepissime gracilibus subcorymbosis ; ealycis lobis tubo brevioribus ; corolla alba hypocraterimorpha, tubo longissimo (soape sesquipollicari), lobis orbiculatis ovatisve (nunc acumine apiculatis) ; filamentis intra tubum superne baud ampliatum nunc 2-3 ad faucem valde insequaliter insertis; antheris oblongis ; ovulis in loculis 10-12. Cantua longiflora, Torr. Ann. Lye. Gilia longiflora, Don, Benth., &c. — Nebi'aska to New Mexico, W. Texas, and Arizona; common in pine forests, &c. f * * Folia omnia integerrima : corolla infundibuliformis. 11. C. leptalea, n. sp. Annua, glandulosa vel glaberrima; caule gracillimo (4- 10-pollicari) effuse paniculato ; foliis angusto-linearibus ; floribus sparsis filiformi-pedicellatis ; corolla alba vel purpurea, tubo tenui e calyce exserto in faucem latam lobis ovatis sublongiorem am- pliato ; filamentis. valde inrequaliter insertis ; antheris brevissimis ; ovulis in loculis 6. — California, in the Sierra and foot hills, from Plumas to Mariposa County, Bridges, Newberry, Mrs. Davis, Torrey, Bolander, A. Wood ; the latter collected a more glandular form, and states that the corolla is " scarlet." Calyx 1-2, corolla 5 — 7 lines long. Flowers very loosely panicled ; pedicels naked, terminal and opposite the leaves, 3-12 lines long, almost capillary. 3. GILIA, Ruiz & Pav. Corolla infundibuliformis, hypocraterimorpha, nunc fere campanulata vel rotata. Stamina fauci vel tubo nunc sinubus corolla? requaliter in- serta : filamenta saepissime gracilia, haud declinata, basi fere semper nuda. Ovula in loculis plurima vel pauca, in nonnullis solitaria. 262 PROCEEDINGS OF THE AMERICAN ACADEMY Semina humefacta plerumque (ut Collomice) mucilaginosa, in omnibu9 oppositifoliis palraatifidis nee spirillifera. Herbse, paucse suffrutices, Labitu, varire. — Gilia et Navarretia, Ruiz & Pav., Benth. in DC. Thus regarded, Gilia is certainly a polymorphous as well as a large genus; but definite characters are vainly sought for dividing it and for keeping Navarretia separate. The most natural separation would seem to be into three genera, characterized mainly by the foliage : — namely, 1. Gilia, with alternate and pinnately cut or divided leaves ; 2. Lepto- dactylon, frutescent plants, with nearly the corolla of Phlox, and alter- nate palmately parted leaves ; and 3. Leptosiphon, annuals, with oppo- site and palmately divided (or entire) leaves. And to this the seeds in some sort answer, — those of the first being mostly mucilaginous and spirilliferous, as in Collomia, of the second (always?) unaltered in water, as in Phlox, one section of which it externally resembles in fo- liage ; -of the third, more or less mucilaginous, but destitute of spiricles ; which is paralleled by the one Collomia, C. gracilis, that tends to have opposite leaves, — points worth noticing by those who accept the doc- trine of the derivation of species. -But Nuttall's Siphonella and a new opposite-leaved Leptodactylon nearly efface the distinctions between the latter and Leptosiphon ; some species of the opposite and palmate series have the upper leaves prevailingly alternate ; one of the alter- nate-leaved series has trisected leaves seemingly of the palmate sort; and a few scattered species of the same series have seeds which pro- duce neither simple mucilaginous tubes nor spiricles when wet. Those of G. {Ipomopsis) coronopifolia differ in. this way from those of the nearly related G. aggregata. Similarly G. (Linanthns) dicholoma has seeds with a loose arilliform external coat, under which are apparently no mucilage cells or tubuli, while these abound under the closer coat in the nearly related G. Bigelovii, as in the other species of that series. It is obviously impracticable, therefore, to restore any of those, at first apparently well-marked genera which Mr. Bentham proposed, and afterwards merged in Gilia. To complete our view of the genus I have included the few South American species. Series I. Palmati- seu Oppositifolice, nempe foliis sessilibus palma- tisectis (segmentis angustis integerrimis) in perpaucis integris, oppositis vel summis ramealibusque quandoque alternis, in Leptodactylis pleris alternis. Semina humefacta tegumento sogpius mucilaginoso sed nun- quam spirillifero. OF ARTS AND SCIENCES: JUNE 14, 1870. 263 § 1. DACTYLOPHYLLUM. Corotfa campanulata, fere rotata, vel breviter inf'undibuliformis, lobis obovatis. Filamenta gracilia : antherre ovales. Ovula in loculis plurima, rarius pauca. Annuaa, pusilla? vel tenues, saspissime sparsifloros. * Flores in dichotomiis subpedicellati. Corolla campanulata, tubo proprio nullo, lobis integerrimis. Folia pleraque tripartita. 1. G. demissa, n. sp. Divaricato-ramosissima, depressa, glabella; foliis rigidulis, segraentis acerosis ; calyce fere 5-partito, segmentis in- tequalibus lanceolato-subulatis marginibus scariosis, longioribus saspe foliiformibus corollam albam medio 5-lobam adaequantibus ; staminibus inclusis corollae basi insertis ; ovulis in loculis 7. — S. E. California and adjacent part of Arizona, Fremont ; mouth of Diamond River, Newberry (G., Dactyhphylhim, n. sp. in Ives Exped. p. 22); near Fort Mohave, Cooper. Plant 2-3 inches high. Flowers somewhat cymosely crowded, the upper internodes being short : pedicels at most a line long, often almost wanting. Corolla 3 lines long. * * Flores sparsi tenuiter saspius longissime pedicellati. Corolla aut breviter infundibuliformis aut fere rotata, lobis integerrimis. Folia 3 - 7-secta, superiora saepius alterna, scabro-hispidula, hirsu- tula, vel fere glabra. Gilia sect. Dactylophyllum, Benth. 2. G. liniflora, Benth. Folia Spergulce facie ; pedicellis capil- laribus ; corolla (alba) fere rotata, lobis latis calycem bis terve supe- rantibus ; filamentis summo tubobrevissimo insertis basi pubescentibus ; ovulis in loculis 6-8. — Forma major, G. liniflora, Benth., corolla majuscula, lobis lin. 6-4 longis. — California. Var. pharnaceoides (G. pliarnaceoid.es, Benth.; Hook. Fl. 2, t.161) : minor vel pusilla ( G. tenella, Nutt. ined.), corolla? lobis 3i — 2 lin. longis. — California to British Columbia and Rocky Mountains. 3. G. pusilla, Benth. Tenella ; foliis brevioribus ; pedicellis capil- laribus ; corolla (purpureo tincta seu albida fauce luteola) lobis lato- obovatis fauci subcampanulatae cum tubo proprio brevissimo sequilongis seu longioribus ; filamentis sub sinubus insertis basi fere glabris ; ovulis in loculis 3-5. — Forma Chilensis, minor, G. pusilla, Benth. corolla calyce parum longiore. — Var. Californica : corollae lobis amplioribus calycem bis superantibus. G. Jilipes, Benth. Hartw. p. 325. 4. G. Bolaxderi, n. sp. G. pnsil/ce simillima, differt corolla (cae- ruleo vel purpureo tincta) tubo angusto calycis tubum cylindraceum subrequante lobis suis fere oblongis cum fauce brevissimo vix ampliata 264 PROCEEDINGS OF THE AMERICAN ACADEMY pi. ra. longiore ; pedicellis quandoque sesquipollicaribus ; ovulis in lo- culis 2-5. — California, Sonoma County, on dry hills; Russian River, Bolander ; — Calaveras Valley, A. Wood. Corolla three or four lines long, with comparatively small lobes, not much surpassing the calyx. From the form of the corolla and the length of its cylindrical tube, this cannot be reckoned a variety of G. pusilla. 5. G. aurea, Nutt. PI. Gamb. p. 155, t. 22. A basi ramosa diffusa 2 - 4-pollicaris ; foliis hispidulis brevibus, segmentis angusto-linearibus vix lin. 3 longis ; pedicellis subcymosis flore majusculo hand longiori- bus ; corolla srepius flava, lobis late obovatis patentibus fauci ampliato- infundibuliformi cum tubo brevissimo sequilongis ; filamentis prope sinus insertis glabris ; ovulis in loculis circiter 10. — California, from Santa Barbara or Los Angeles to Arizona and New Mexico. Corolla rather ampliate-funnelform than campanulate, the border 4-6 lines in diameter when expanded, bright or light yellow, sometimes apparently white. — Var. decora: corolla alba seu violacea fauce nunc fusco- purpurea. California, Fremont, Brewer, the latter on Monte Diablo. * * * Flores solitarii paucive Vamos terminantes, breviuscule pedi- cellati. Corolla late breviter infundibuliformis, lobis amplis fimbri- olato- seu eroso-dentatis. Filamenta glabra, basim versus corolla? inserta. Ovula numerosa. Folia omnia opposita simplicissima. — Fenzlia, Benth. olim. Gilia sect. Dianthoides, Endl., Benth. 6. G. dianthoides, Endl. Atakta, t. 29 ; Hook. Bot. Mag. t. 4876. G. dianthijiora, Steud. Nom. Fenzlia dianthijiora, Benth. in Bot. Reg. F. speciosa & F. concinna, Nutt. PI. Gamb. 1. c. — California, from Santa Barbara southward. Flowers variable in size, hue (lilac, purple, or almost white, with yellow or dark purple throat), and in the denticu- lation of the lobes, which in Coulter's, no. 464, is minute. § 2. LINANTHUS, Endl., Benth. Corolla hypocraterimorpha, tubo calycis tubum cylindricum adasquante, lobis late cuneato-obovatis asstivatione valde convolutivis margine obsolete crenulatis vel erosis. Stamina tubo corollas infra medium inserta, inclusa: fila- menta gracilia. Ovula in loculis numerosa (20 — 40). Capsula oblonga vel cylindracea. — Annua?, erectaa, glaberrimae ; foliis oppositis 3-5-sectis, inferioribus saepe (in pauperrimis nunc omnibus) integris, segmentis lineari-filiformibus ; fioribus ternai- nalibus alaribusque subsessilibus albis ; calycis lobis acerosis. — Linanthus, Benth. in Bot. Reg. OF ARTS AND SCIENCES : JUNE 14, 1870. 265 7. G. diciiotcoia, Benth. in DC. cum syn. Spithamasa ad subpe- dalem, grandiflora ; corollas lobis semi-subpollicaribus ; antheris lineari- bus ; seminibus subrotundis, tegumento externo laxo arilliformi albo tenui-reticulato ab interiori multo minore soluto, hurnefactis nee muci- la"inosis. — Common in California. 8. G. Bigelovii, n. sp. Saspius tenuior, parviflora ; corolla ealycis lobos vix superante, limbo tubo suo 2-3-plo breviore ; antheris ovali- bus ; seminibus ovalibus, tegumento confbrmi sub aqua mucilaginoso. — G. dichotoma, var. parvi flora, Torr. Mex. Bound, p. 147. — W. Texas on the Rio Grande and adjacent parts of New Mexico, Bigelow, "Wright, to Arizona, Palmer, and Utah, Watson. Leaves sometimes all entire, the upper more commonly trisected. Lobes of the corolla not over two lines in length, cream-white, the outside often reddish. § 3. LEPTOSIPHON, Endl., Benth. Corolla hypocraterimorpha, tubo saspius filiformi elongato, fauce brevissima nunc abrupte plus minus ampliata parum infundibuliformis. Stamina fauci inserta : antherae breves. Ovula in loculis 6-16. — Annuas, hurailes vel tenellae ; foliis oppositis angustis ; floribus saepius par- vulis at latis cum bracteis foliiformibus fulcrantibus capitato-glo- meratis. (Stylus in diversis stirpibus aut elongatus plus minus exsertus, aut rarius brevis inclusus !) — Leptosiphon, Benth. olim. * Palmatifolice, Genuince, Californicas, pilosae ; caulibus foliosis ; foliis 5-7-partitis et in axillis fasciculatis, segmentis angusto-linearibus vel filiformibus. Corolla lobis integerrimis. Filamenta gracilia e fauce pi. m. exserta. Ovula in loculis 6- 10. -i— Brevi- Grandiflora, validiores ; corollas tubo lobis amplis (semi- pollicaribus) obovatis parum longiori bracteas villoso-hirsutas raro superante. 9. G. densiflora, Benth. in DC, cum syn. Prodr. G. grandiflora, Benth. 1. c. {Leptosiphon grandiflorus, Benth. Bot. Reg.) : forma tan- tum, saspius tenuior, tubo corollas parum longiori, limbo minori. h— -H- Tenuiflorce, graciliores, saepius tenellae ; corollas tubo lobis (11-4 lineas tantum longis) ovalibus ovatisve 3 - 6-plo longiori. (Species difficillimae, an confluentes ?) 10. G. axdrosacea, Steud., Benth. Multicaulis ; corollae (haud flavae) tubo e bracteis hirsuto- seu villoso-ciliatis longe exserto circa pollicem longo lobis triplo longiori. VOL. VIII. 34 266 PROCEEDINGS OP THE AMERICAN ACADEMY Var. detonsa. Subglabra ; bracteis foliisque parum hispidulo-cili- atis. — California, Bridges, Brewer. Nevada near Carson City, An- derson, a Somewhat intermediate form. 11. G. micrantha, Steud., Benth. Gracilis; corollas tubo pertenui (sub-sesquipollicari lobis (lin. 2-3 longis) multoties long-iori ; bracteis foliisque floralibus molliter breviter pubescentibus. — Leptosiphon parvijlorus & luteus, Benth. Bot. Reg. L. parvijlorus var. rosaceus, Hook. f. Bot. Mag. t. 58G3 (Gilia longituba, Benth. PI. Hartw.) : forma spectabilis corolla majuscula laste rosea. — Corolla lutea, albida, nunc lilacina vel rosea, nunc aurea (var. aurea, Benth. 1. c). 12. G. tenella, Benth. PI. Hartw. Depressa, parvula ; corollas tubo minus attenuato lin. 6-9 longo, lobis sesquilineam longis (roseis lilacinisve fauce lutea) ; bracteis etc. hispidulo-ciliatis. L. bicolor, Nutt. PI. Gamb. 1. c. chiefly. — The most northern in range, from Santa Barbara to Puget Sound. Has been confounded with the pre- ceding. 13. G. ciltata, Benth. 1. c. Rigidior, hirto-pubescens, 3-12-pol- licaris ; corollas tubo (lin. 6-7 longo) ultra bracteas hirsutissimo-cilia- tas vix exserto, lobis sesquilineam longis ; calycis lobis acerosis. — N. California to the borders of Nevada. * * Simplicifolicz, glaberrimas, pygmeas ; internodio infra capitu- lum nunc prolifer unico ; foliis bracteisve ovato- nunc subangusto- lanceolatis. Corollas lobis cuneatis margine repando vel 1-3- dentato. Antheras fauce inclusas sessiles. Ovula in loculi3 10-16. 14. G. nudicaulis. Collomia nudicaulis, Hook. & Arn. Bot. Beech. — S. E. Oregon, Tolmie. Nevada, &c, Anderson, Stretch, Watson. South Park, Colorado, E. Hall, a diminutive form. There are no leaves from the persistent oval cotyledons up to the head, from half an inch to three inches. Corolla white, pink, or yellow, the exserted tube three or four lines long. § 4. SIPHONELLA. Leptosiphon referens, sed corollas tubus caly- cem baud superans, faux magis infundibuliformi-ampliata, ovula in loculis pauca, flores minus congesti. — Perennes basi nunc suf- frutescente, pube minuta molli subcinerea. Calyx cylindraceus, firmus, striatulus, mox 5-partitus, lobis lanceolato-subulatis, mar- ginibus crassiusculis sinubusque haud membranaceis vel scariosis. OF ARTS AND SCIENCES : JUNE 14, 1S70. 267 Corolla alba fauce flava, tubo extus puberulo, lobis obovatis. Filamenta brevia e fauce subexserta : antheras ovali-oblongae. — Sip/wnella, Nutt. in herb. 15. G. Nuttallii, n. sp. Spithamam ad pedalem ; caulibus e basi suffrutescente plurimis simpliciusculis ; foliis 3 - 7-partitis internodio saepius brevioribus, segmentis angusto-linearibus raucronatis (lin. 6-9 longis) ; floribus in glomerulum foliosum confertis; ovulis in loculis binis. — Siphonella montancr & S. parviflora, Nutt. herb. — Rocky Mountains of Colorado and Utah to the Sierra Nevada in California, Nuttall, Fremont, Anderson, Brewer, Watson. — Tube of corolla four or five, the lobes two or three lines long. 16. G. floribunda, n. sp. Ultrapedalis ; caulibus e basi frutes- cente ramosis gracilibus ; foliorum segmentis fere acicularibus interno- dia saapius adaequantibus ; floribus laxiuscule corymboso-cymosis, non- nullis pedicellatis ; ovulis in loculis 4 : cast, fere prascedentis. — Cali- fornia, probably on S. E. borders, Coulter, no. 454. Lower California 50 miles S. of San Diego, E. TV". Morse, 1866, ex A. Wood. Pine woods of Arizona, Coues and Palmer, 1865. — Flowers "delicate- scented," rather larger and much more numerous than those of G. Nuttallii (some forms of which nearly approach it), either densely or loosely cymose-clustered at the extremity of copious paniculate or corymbose branchlets. § 5. LEPTODACTYLON, Benth. Corolla hypocraterimorpha, tubo e calyce demum pi. m. exserto, fauce subinfundibuliformi-am- pliata. Stamina fauci vel infra faucem inserta: filamenta brevia vel brevissima : antheras breves inclusag. Ovula in loculis plu- rima. Semina tegumento conformi, humefaeta nee mucilaginosa nee spirillifera ! — Perennes, suffruiicosae, nunc caespitosas, foliosis- simas ; foliis alternis vel in unica oppositis et in axillis fasciculatis palmatipartitis, segmentis integerrimis cum calycis lobis acerosis subulatisve pungentibus ; floribus roseis lilacinis albisve concin- nis aut cymuloso-confertis aut solitariis ramulos breves terminan- tibus sessilibus. — Leptodactylon, Hook. & Arn. * Folia in caulibus brevibus fere herbaceis opposita ! 17. G. Watsoni, n. sp. Hirtello-scabrida, subglandulosa, nunc glabrata ; caulibus gracilibus (circ. spitbamaeis) fere herbaceis e caudice lignescente crasso ; foliis 3-5-partitis patentissimis, segmentis tenui- acerosis internodiis saspe brevioribus ; calycis lobis tubo dimidio brevi- 268 PROCEEDINGS OF THE AMERICAN ACADEMY oribus ; corolla alba fauce subpurpurea ; antheris faucialibus ; ovulis in loculis circa 10. — Wasatch Mountains, Utah, Watson. Tube of the corolla and lobes each half an inch long. Connects Leptodactylon intimately with the two preceding sections of Gilia. * * Folia omnia alterna, rigidiora, et in axillis crebre fasciculata. Suffrutices. 18. G. Californica, Benth. in DC. Ramis foliisque creberrimis mox patentissimis primum laxe tomentoso-pubescentibus ; corollte rosese seu lilacinoe lobis amplis late cuneato-obovatis soepe erosulis ; antheris lineari-oblongis infra faucem ; ovulis in quoque loculo 20-25. Lep- todachjlon Calif or nicum, Hook. & Arn. Bot. Beech, p. 369, t. 89, Bot. Mag. t. 4872. — California south to San Bernadiuo. Limb of the showy corolla an inch and a half in diameter. 19. G. pungens, Benth. 1. c. Viscido-pubescens, puberula, vel glabrata ; foliis plerumque erectiusculis vel strictis ; corollas rosese al- bidas seu flavidas lobis fere dimidio minoribus saspius angustioribus ; antheris faucialibus oblongis ; ovulis in quoque loculo 8-10. G. pungens & G. Hookeri, Benth. 1. c, cum syn. — Plains of the upper Platte and Columbia to E. California and Arizona. Very variable: the original Cantua pungens, Torr., from the Platte, is a low and mi- nutely pubescent or nearly glabrous form. — Var. c^espitosa {Lepto- dactyhn ccespitosum, Nutt. PI. Gamb.) : pulvinato-depressa, glabres- cens, subherbacea. Upper Platte. — Var. Hookeri {Phlox Hookeri, Dougl. in Hook. Fl. t. 159) : forma elatior viscido-pubens, foliis in ramis floridis nunc sparsioribus. The flowers not found of " bright yellow" color, as noted by Douglas. — Var. squarrosa: segmentis foliorum subulatis validioribus patentibus vel squarroso-recurvis. Arid districts of Nevada and Utah, coll. Anderson, Watson, &c. Series II. Pinnati-Alternifolice, nempe foliis pinnatisectis lobatis dentatisve rarissime integerrimis. Semina humefacta tegumento mu- cihiginoso tubulos spirilliferos porrigente (no. 44, 47, 48, 59, 60, ex- ceptis). § 6. NAVARRETIA. Flores capitato-glomerati, crebre foliaceo- bracteati. Calycis lobi, uti bractearum, rigidi, acerosi, spinulosi nunc laciniati, nunc inasquales. Corolla tubuloso-subinfundibuli- formis, gracilis, lobis parvulis oblongis. Stamina sub fauce inserta : antherae breves. Ovarium quandoque dimerum. Annute, fere semper Californicae, scepius viscidae, nunquam albo-lanataj, foliis OP ARTS AND SCIENCES : JUNE 14, 1870. 269 1 - 2-pinnatifidis incisisve, lobis plerumque pungentibus. Bracteae in nonnullis palmatifidae. (Semina humefacta tubulis cellulisve spirilliferis minus elongatis.) — Navarretia, Ruiz & Pav., Bentb. jEgochloa, Bentb. olim. * Folia nonnulla plus minus bipinnatifida vel incisa : stamina fauce corollas violaceae inclusa, saepius inaequilonga, vix inaequaliter in- serta : ovula in loculis 8-12. Herba viscida, fcetida. 20. G. squarrosa, Hook. & Arn. Bot. Beecb. p. 151. (ffoitzia squarrosa, Escbsch.) G. pun gens, Hook. Bot. Mag. t. 2977. Navar- retia, Hook. & Arn. squarrosa, Hook. & Arn. 1. c. p. 368 ; Benth. cum. syn. Prodr. * * Folia plera vel nonnulla bipinnatifida vel incisa : stamina e fauce exserta : ovula in loculis 1-4. h— Rigida, validior, 5 - 12-pollicaris. 21. G. cotuLjEFOLIa, Steud. Navarretia pubescens et cotulcefolia, Bentb. : the former more pubescent ; the latter as commonly with cells uniovulate, even in original specimens ; both sometimes biovulate. The name here retained is the better one ; moreover, the herbage is said by Professor Brewer to exhale the odor of Maruta Cotula. +- -)— Graciliores vel demissae. 22. G. intertexta, Steud. Erecta, nunc patenti-ramosa, nee vis- cida nee glandulosa, pub i alba in caule subrobusto (3 - 7-pollicari) retrorsa hirsuta ; foliis glabratis, segmentis aceroso-spinescentibus divaricatis simpliciusculis ; floribus arete glomeratis ; calycis tubo cum basi bractearum albo-hirsutissimo, lobis corollam albam adaequantibus ; ovulis seminibu?que in loculis 3-4. — Navarretia intertexta, Hook. Fl. p. 75. — Columbia River to Northern California and the Rocky Mountains. 23. G. MINIMA, Depressa, subpollicaris, nunc cagspitans, glabrata ; foliis minus divisis acicularibus ; calycis tubo glabello sinubus latis tantum albo-piloso lobis inaequalibus (corollam albam subasquantibus) aequilongo ; ovulis in loculis 1-3. — Nav. minima, Nutt. PI. Gamb. p. 160. — Arid interior of Oregon and Nevada to Colorado (Nicollet, Geyer, Vasey, &c). 24. G. Breweri, n. sp. Erecta, nunc difTuso-ramosissima, 1-6- pollicaris, undique minutissime glanduloso-pubera; segmentis foliorum subsimplicibus aciculari-subulatis ; floribus minus glomeratis ; calycis lobis conformibus angusto-subulatis tubo suo (capsulam breviore) 3 - 270 PROCEEDINGS OF THE AMERICAN ACADEMY 4-plo longioribus corollam flavam (I'm. 3-4 longara) adrequantibus ; ovulis in loculis 1-3. — Sierra Nevada, at Ebbett's and Amador Pass, alt. 8,000 feet, Brewer. From the W. Humboldt Mountains, Nevada, to the Wasatch, G - 9,000 feet, S. Watson. 25. G. leucocephala. Gracilis, 3 - 6-pollicaris, haud glandu- losa; ramis infra capitulum densum retrorsim pubescentibus ; foliis subflaccidis glabris, segmentis filiformibus saspius indivisis, floralibus etiam vix pungentibus ; calycis tubo sinubus saltern villoso-pubescente ; corolla alba (lin. 4 longa) calycem superante, lobis staminibus soepius brevioribus ; ovulis in loculis 2. — Navarretia leucocephala, Benth. PI. Hartw. p. 324. — California, chiefly on the Sacramento and its tribu- taries. 26. G. Navarretia, Steud., Nav. involucrata, Ruiz & Paw, the original and only Chilian species, appears to be nearer G. leucocephala than to G. cotulcefolia ; but in fact the three species approach each other too nearly. * * * Folia semel pinnatifida vel incisa, paucave fere integerrima : stamina e fauce corolla? violaceo-purpurea? nunc alba? vel luteola? pi. m. exserta : calycis lobi integerrimi vel in G. viscidula rariter laciniati. h— Gracillima?, ramis foliisque paucisectis filiformibus : bractea? fere palmatipartita?. 27. G. filicaulis, Torr. in herb. Erecta, spithama?a, superne minutissime glandulosa ; ramis tenellis pedunculiformibus effuse pani- culatis ; foliorum segmentis rhachique subsetaceis ; corollas violacere tubo tenero calycis lobos lanceolato-subulatos parum pungentes longe superante; ovarii loculis uni-(raro bi-?) ovulatis. — California, Jef- fray, no. 1474, in herb. Kew. Also Bear Mountain, Mariposa County, Torrey. Leaves sparse. Heads small, rather naked. Flowers nearly three lines in length, exceeding the palmately few-cleft inner bracts. 28. G. divaricata, Torr. in herb. Diffusa, nunc patentissima, 3 - 6-pollicaris, superne viscidulo-pubescens, ramis proliferis pedunculi- formibus; foliorum segmentis rhachique subulato-filiformibus, bractea- rum magis pungentibus ; corolla? purpurea? vel luteola? tubo infundi- buliformi calycis lobis setaceo-subulatis pungentibus parum longiore ; ovarii loculis o - 7-ovulatis. — California, alone; the foot hills of the Sierra Nevada, coll. Shelton, Rattan, Bolander, Torrey, Mrs. Davis, C. Lee. — Flower from three to five lines long. OF ARTS AND SCIENCES : JUNE 14, 1870. 271 h— h— Validiores, viscidos ; foliis rigidis superioribus proesertim a basi dilatatis, lobis dentibusve spinulosis vel spinosis : capitulis densis. 29. G. viscidula. Nav. viscid ula, Bcnth. PI. Hartw. — Apparent- ly common and widely spread in California. The lobes of the calyx more usually entire. It is described as with solitary ovules in the cells ; but two are more commonly found, even in Hartweg's speci- mens ; while in robust forms of what is otherwise indistinguishable from the species, collected by Bridges, Fitch, Samuels, Bolander, &c, there are three or four ovules in each cell ! 30. G. atracttlOides. New. atractyloides, Hook. & Arn. — Cali- fornia, from Monterey to San Diego. -^ — -*- — -*- — Depressa;, parum viscidae ; foliis rigidis versus apicem dila- tatis, dentibus lobisve cum calycis segmentis longe setiferis ; flori- bus vix congestis. 31. G. setosissima. Navarretia setosissima, Torr. & Gray, Bot. Ives Colorado Exped. p. 22. Ovula in loculis G - 10. — Var. exigua, ovulis in loculis 3-5. N. Schottii, Torr. Bot. Mex. Bound, p. 145. — Arizona and S. E. California on the Mohave, &c, Coulter, Fremont, Newberry, Schott, Cooper. § 7. HUGELIA. Flores capitato-glomerati, crebre foliaceo-bracteati ; bracteis 3 - 5-fidis basi calycibusque lana longa implexa albida vestitis, lobis utriusque acerosis subulatisve cuspidatis. Corolla plerumque caerulea hypocraterimorpha, tubo gracili, lobis saspius oblongis. Antheroa exsertas, nunc lineari-sagittata;, nunc breves. Ovula numero perquam variabilia ! — Plantar humiles, juniora proesertim floccoso-lanatae, baud viscidaa, foliis semel pinnatiparti- tis paucisve integris acerosis vel subulato-filiformibus. — Hugelia, Benth. in Bot. Reg. Gilia sect. Collomioides (Endl.) & Pseudo- collomia, Benth. in DC. In this group I can make nothing of the number of the ovules, even as a specific character. In two specimens apparently exactly alike, one has three or four, the other only two, ovules in each cell : sometimes there is a pair in one or two of the cells, and a solitary one in the other. In none have I detected the maximum number mentioned in the Prodromus, i. e. ten in each cell. The Hugelia lidea, Benth., probably had not yellow flowers. The tube of the corolla lengthens with age in all the species. Gilia gossypifera is better placed in the next section. 272 PROCEEDINGS OF THE AMERICAN ACADEMY * Perennis, caulibus rigidis e basi suffruticosa : anthers lineari- sagittatae. 32. G. densifolia, Benth. G. (olim Hugelia) densifolia & elon- gata, Benth. 1. c. — No other specimens of G. densifolia have been found exactly answering to those of Douglas ; these have 5-7 (accord- ing to Bentham about 10) ovules in each cell, those of G. elongata only two or three. Specimens collected by Xantus at Fort Tejon, and by Dr. Cooper on the Mohave, are as near as may be intermediate. * * Annua?, graciliores, demnm paniculato-ramosae, foliis segmen- tisve saepius paucis filiformibus. 33. G. virgata, Steud., Benth. I. c. Priraum stricticaulis, sim- plex ; antheris (in sicco) linearibus sagittatis lineam longis. — Hugelia virgata, Benth., Hook. Ic. t. 200 (anthers figured too short). The ordinary form has most of the cauline leaves entire, and the upper of few divisions. Lobes of the corolla three lines long. Var. floribunda : corymboso-ramosa ; capitulis majoribus multi- floriti ; foliis magis dissectis. — California, Fitch, Wallace, Brewer. Ovules vary from two to five in each cell. 34. G. floccosa. Gracilior, spithamaea, demum diffusa paniculata" ; antheris lineari-oblongis vix semilineam excedentibus ; floribus minoiv- bus; ovarii loculis nunc uni- nunc bi- rarius 3 - 4-ovulatis. — Hugelia lutea, Benth. in Bot. Beg. Gilia (Pseudocollomia, Benth.) lutescens, Steud., Benth. in DC. — California to Arizona, interior of Oregon, and Utah. Flowers blue or pale purple, becoming white only in age, and though appearing yellowish in original dried specimens of Douglas, probably never yellow. Hence a new specific name is required. Nuttall has an unpublished Hugelia floccosa in his herbarium, but with no flowers developed ; and, as it is either this or the next, the name may be applied to the present species. 35. G. filifolia, Nutt. Gamb. p. 156. Gracilis, spithamaea et ultra, rigidula ; foliis plerisque tripartitis ; antheris ovalibus minimis ; corollas tubo parum exserto ; ovarii loculis saepius 4 - 6-ovulatis. — Santa Barbara and San Isabel, California, Nuttall, Thurber ; and Fort Mohave, Cooper. Var. diffusa : laxa, nunc ramosissima. — Fort Mohave and Nevada to New Mexico and the borders of Texas. Lobes of the pale purple or blue corolla only one or two lines long : anthers only a quarter or one third of a line in length. Forms of this approach the preceding too nearly. OP ARTS AND SCIENCES: JUNE 14, 1870. 273 (G. LANATA, Lindl. Jour. Lond. Hort. Soc. 3, p. 74, said to come from Mexico, of which I know only the character, is probably a form of G. virgata or of G. Jilifolia.) § 8. ELAPIIOCERA, Nutt. Flores capitato-congesti, bracteati, raro cymoso-laxiusculi. Corolla (alba) hypocrateriformis, tubo calycis lobossnepius mucronato- vel cuspidato-apiculatos (baud pungentes) adajquante vel paullo (rarius duplo) superante. Stamina corol- las lobis ovalibus oblongisve plus minus breviora, sinubus saapius inserta. — Herbas biennes vel perenries vita} ut videtur b re vis, nunc annua}, humiles ; caulibus fere semper lanoso-pubescentibus ; calycibus bracteisque pilis longis viscidulis multiarticulatis crini- tis ; foliis semel pinnatifidis vel integris. * Folia integerrima angustissima : flores capitato-congesti : filarnen- ta gracilia, exserta, sed coi'olla} lobis breviora. 3G. G. Wrightii, n. pp. Caulibus virgatis rigidis circa pedalibus e basi lignescente seu radice forte perenni? usque ad apicem foliosis ; foliis rigidis cuspidato-mucronatis ; bracteis lato-lanceolatis hinc inde laciniatis cum calycis lobis subulatis aristato-cuspidatis ciliatis ; corolla} lobis oblongis tubo parum exserto (I'm. 4 longo) dimidio brevioribus ; antheris brevi-oblongis; ovulis in loculis 3-4. — Western frontiers of Texas, on the Rio Grande forty or fifty miles below El Paso, C. Wright, no. 496. In habit like a Hugelia: flowers white or faintly bluish. 37. G. Gunnisoni, Torr. & Gray, Pacif. R. R. 2, p. 129, t. 9. Annua, subglabra, sparsifolia, laxe paniculato-ramoso, ramis capi- tulo parvo quasi pedunculato terminatis ; ovulis in loculis 2-3. — The figure is characteristic. We have it only from Green River, Utah, Kreusfeldt, and San Juan, New Mexico, Newberry. The plants referred to in Bot. Mex. Boundary are different: Wright's 1642 is G. jilifolia var. diffusa. » * Folia aut omnia aut nonnulla in lobos paucos angusto-lineares partita, raro omnia integra : filamenta corolla} lobis breviora : flores arete capitato-glomerata. — Herba} biennes vel perennes, caudice vel radice dura. 38. G. spicata, Nutt. PI. Gamb. 1. c. Caulibus validis erectis (4-10-poll.) superne capitula plurima in spicam longe virgatam inter- ruptam foliosam congesta gerentibus; foliis nunc trifidis nunc integerri- mis cum calycis lobis fere muticis ; corolla} lobis oblongo-ovatis tubo vix exserto breviore ; antheris fauce subsessilibus ; ovulis in loculis vol. viii. 35 274 PROCEEDINGS OF THE AMERICAN ACADEMY 4-6. — Benth. Kew Jour. 3, p. 290. G. spicata & G. trijida, Nutt. ]. c. Rocky Mountains, Colorado, Nuttall, Fremont, Geyer, Parry, Hall & Harbour. — Var. capitata : forma minor, foliis integerrimis, floribus in eapitulo unico terminali. Rocky Mountains, Hall & Har- bour, no. 461. 39. G. congesta, Hook. Caulibus erectis vel diffusis (3-12- poll.) e basi subeasspitosa ; eapitulis florum solitariis vel paucis eorym- bosis densis ; foliis 3-7-partitis paucisve integerrimis, lobis ut calycis aristulato-mucronatis ; corollas lobis ovalibus tubo suo baud exserto vix brevioribus ; filamentis sinubus insertis antberas adasquantibus vel exce- dcntibu^ ; ovulis in loculis 2-4. — Hook. Fl. &' Ic. t. 235. Colorado and Nebraska, to Oregon and California in tbe Sierra Nevada. Var. crebrifolia. Depressa ; caulibus (2- 3-pollicaribus) foliosis- simis monocephalis ; foliis aceroso-subulatis integris par.vis (lin. 3-6 longis). — G. crebrijolia, Nutt. PI. Gamb. I.e. — Rocky Mountains, on Big Sandy River, Colorado, Nuttall. Specimens from Bear River Valley, Utab, Watson, connect tbis with G. congesta. . 40. G. iberidifolta, Benth. Kew Jour. 3, p. 290. Prascedenti peraffinis ; foliis rigidioribus bracteisque cuspide validiore mucronatis ; eapitulis corymbosis laxioribus; filamentis brevioribus ; ovulis in loculis solitariis! — Scott's Bluffs, North Platte, Nebraska, Geyer; and Black- water of the same, H. Engelmann. Not elsewhere met with. Per- haps a form of G. congesta. * # * Folia omnia vel plera pinnatifida vel trifida : Mores conferte cymulosi demum laxiusculi, folioso-bracteati : calycis lobi cum bracteas aristulato-cuspidati. Annuas, humiles, e basi ramosae. 41. G. gossypifera, Gillies, ex Benth. in Prodr., of the Andes of Mendoza, is evidently of this section, and most like the following. .42. G. pumila, Nutt. PI. Gamb. (1849). Caulibus laxe lanosis foliosis ; foliis angusto-linearibus integris vel in lobos 2-5 lineares divergentes partitis ; corollas tubo (lin. 3-4 longo) gracili lobis suis 3 — 4-plo calycis lobis duplo longioribus ; filamentis gracilibus sinubus insertis corollas lobis parum brevioribus ; ovulis in loculis 5-6. — G. trijida, Benth. Kew Jour. 1. c. Western borders of Texas and New Mexico, Fendler, Wright, Bigelow, &c, to the Platte, Nuttall, Geyer, and Utah, S. Watson. 43. G. polycladox, Ton*. Bot. Mex. Bound. Caulibus diffusis subnudis parce pubescentibus vel puberulis ; foliis pinnatihdis incisisve, lobis brevibus oblongis abrupte spinuloso-mucronatis, floralibus flores OF ARTS AND SCIENCES : JUNE 14, 1870. 275 superantibus ; corolla? tubo (sesquilineari) calycera vix superante ; limbo parvo ; anther is fauci insertis subsessilibus ; ovulis in loculis 2. — New Mexico and western frontiers of Texas, Wright, Bigelow, to Utah, S. Watson. § 9. IPOMOPSIS, Benth, pro parte. Flores thyrsoideo-paniculati, parum bracteati. Corolla (plerumque coccinea) tubuloso-infun- dibuliformis, tubo sensim sursura ampliato calycis lobos subula- tos suosque lobos ovatos sen lanceolatos patentes multum supe- rante. Stamina fauci corolla? vel sub sinubus inserta, lobis baud longiora. Ovula in loculis plurima. — Biennes, glabella? seu pilosula? ; eaulibus elongatis ; foliis semel pinnatifidis ; floribus speciosis. Jpomopsis, Michx. Ipomeria, Nutt. I confine this group to the original species and two others nearly related to it. • As arranged by Bentham it comprised two or three here referred to Eugilla. As to G. longi flora and G. glomeruli flora, they prove to have very unequally inserted stamens, which is the sole character of Collomia. The tendency to dimorphism, of which there are traces, or perhaps rather incipient manifestations, in various portions of the genus, is most marked in G. aggregata. The included stamens of G. subunda perhaps belong to the short-stamened form of the spe- cies, but no other is known. * Caules alte foliosi, foliis pinnatipartitis, segmentis filiformibus seu angusto-linearibus. 44. G. coronopifolia, Pers., Benth. cum syn. Prodr., et G. Flori- dana, Don, & G. Beyrichiana, Bouche. Elata ; thyrso virgato com- pacto ; corolla? lobis ovatis subpatentibus filamentis parum longioribus ; seminibus humefactis nee mucilaginosis nee spirillifens ! tegumento externo laxo et grossius et tenuissime reticulato. — South Carolina to Florida and Texas. 45. G. aggregata, Spreng., Torr. Bi— quadripedalis, versus pani- culam laxam sa?pe ramosamnudiuscula ; floribus suaveolentibus ; calyce sa?pissime glanduloso, lobis subulatis ; corolla? tubo angusto, lobis ova- tis seu lanceolatis acutis patentissimis mox recurvis ; filamentis aut e tubo exsertis aut inclusis ; seminibus mucilaginosis et spirilliferis modo generis. — G. aggregata (Cantua, Pursh !) & G. pulchella (Dough), Benth. cum syn. Prodr. — From Upper Platte and Missouri to the Columbia and the Pacific, and south to Arizona. The original Can- tua aggregata is one of the forms with long and narrow calyx-lobes. The opposite extreme is — 276 PROCEEDINGS OF THE AMERICAN ACADEMY Var. Btudgesii : calycis lobis lato-subulatis imrao deltoideis ; cauli- bus sesquipedalibus laxis parce foliatis ; laciniis foliorum obtusissimis ; floribus parcis. — California, Bridges, &c. * * Caules subpedales superne nudi, foliis subpinnatifidis. 46. G. subnuda,- Torr. in herb. Glanduloso-puberula; foliis ad basin caulis superne aphylli laxe ramosi confertis spathulatis oblongis- ve (pollicaribus) breviter inciso-lobatis ; floribus paucis subeonfertis ; corolloe coccinese vel aurantiaea? tubo semipollieari lobis ovatis obtusis triplo longiore ; antheris subsessilibus fauce inclusis. — Nevada and Arizona or New Mexico,. Newberry, Stretch, Palmer. § 10. GILIANDRA. Flores thyrsoideo-paniculati. Ipomopsidis. Corolla (alba vel subcrerulea) hypocraterimorpha, tubo calycem subduplo superante lobis suis obovatis parum longiore. Filamenta sub sinubus inserta, longe (ultra corollas lobos) exse'rta : antherce ovatas. Ovula in loculis G-8. Semina nee mucilaginosa nee spirillifera ! — Biennes, glanduloso-puberula, foliis semel pinnatifi- dis, floribus parvulis. 47. G. stenotiiyrsa, n. sp. Caule e radice crassa erecto (>pitha- ma30 ad subpedalem) simplici valido usque ad thyrsum virgatum racemiformem folioso ; foliis floralibus bracteisque parvulis integerri- mis, ceteris in lobos breves oblongos pinnatifidis. — Utah, in a " cedar forest," Uintah Mountains, Fremont. Corolla, half an inch long, appar- ently white. 48. G. pinnatifida, Nutt. in herb. ; Gray Fnum. PL Parry. Spithamtea ad sesquipedalem, inferne glabrata ; panicula composita laxe ramosa ; foliis in lobos lineares vel angusto-oblongos rariter 1 — 2- lobatos pinnatipartitis ; bracteis linearibus subulatisve parcis ; stamini- bus longe exsertis. — N. New Mexico and Colorado to Snake River, &c, in or near the Rocky Mountains, Nuttall, Fendler, and various collectors. A part of Geyer's 42 and 25, referred to G. inconspicua, belongs here. Tube and lobes of the corolla each abo'ut two lines, the much exserted stamens three lines long. Seeds with a close coat, wholly unchanged when wetted. § 11. MICROGILIA, Benth. in DC. Flores secus ramos graciles laxe spicatim vel paniculatim dis^iti. Calyx brevi-campanulatus, 5-dentatus. Corolla (alba) hypocraterimorpha, tubo e calyce paullo exserto lobis duplo longiore. Stamina tubo inserta, inclu- sa : antheioe brevissimce. Ovula in loculis solitaria! — Annua?, OF ARTS AND SCIENCES : JUNE 14, 1870. 277 subglabra?, ramosissima? ; foliis fere filiformibus seu ramealibus tenui-subulatis integerrimis caulinisve tripartitis, floribus minimis. 49. G. minutiflora, Benth. 1. c. Rigidula, subscoparia, 1 - 2-pe- dalis ; foliis caulinis nonnullis 3-partitis, ramealibus subulatis ; flori- bus terminalibus sa?peque secus ramulos strictos quasi spicatis ; corolloe (lin. vix 2 longre) tubo angusto lobis sais calyceque duplo longiore ; filamentis gracilibus ; capsula ellipsoidea (lin. 2 longa) ; semine oblon- go. — Collomia (Picracolla) linoides, Nutt. PI. Gamb. p. 159. — Interior of Oregon (not " California"), Douglas ; Colorado and Wyoming, on the Upper Platte, Nuttall, Fremont. 50. G. tenerrima, n. sp. Effuse ramosissima, humilis ; ramis ra- mulisque filiformibus ; foliis brevibus integris ; floribus laxe paniculatis minutis; pedicellis tenuibus divaricatis ; capsula subglobosa (vix line- am longa) ; semine ovoideo. — Utah, on bills above Bear River, near Evanston, Watson in C. King's expedition. § 12. EUGILIA. Flores paniculati, sparsi, vel in prioribus eapita- to-glomerati, sa?pius ebracteati. Corolla (ca?rulea, purpurea, vel alba) infundibuliformis, seu in ultimis fere campanulata vel rota- ta. Filamenta gracilia, ad vel prope sinus corolla? inserta, lobos haud superantia. Ovula in loculis pauca vel plurima. — Folia pinnato-incisa vel dissecta. — Gllia sect. Eugilia cum spec. Ipo- mopsidis nonnullis, Benth. * Flores in cymam capituliformem longe pedunculatam digesti. Stamina sinubus ipsis corolla? brevis inserta, lobis a?quilonga. Ovula plurima. — Annua?, Californicas, erecta? ; foliis 2-3-pinnati- partitis, segmentis angustissimis ; corollis sa?pius ca?ruleis. 51. G. capitata, Dougl. Corolla? lobis lineari-lanceolatis, fauce parum ampliata; calyce sa?pius glabro. 52. G. achille^ekolia, Benth. Flores majores ; corolla? lobis obovatis late oblongisve fauce abrupte insigniter ampliata ; calyce pi. m- lanoso. * * Flores in prioribus subcongesti, in ca?teris laxe paniculati vel dissiti. Corolla infundibuliformis fauce plus minus ampliata. Seminis testa spirillifera modo generis. Annua?, humiliores, nunc diffusa?. +- Pluriovulata?. 53. G. multicaulis, Benth. cum syn. Prodr. G. stricta, Scheele in Linna?a, 21, p. 755 ? G. millefoliata, Fisch. & Meyer : forma diffusa 278 PROCEEDINGS OF THE AMERICAN ACADEMY foliosa parviflora. (Calyx-teeth in char, "tubo suo duplo brevioribus," not " longioribus" as in Prodr.) — Var. tenera : forma depauperata exili, pedunculo sa?pe unifloro. G. stricta, Liebm. Ind. Hort. Hafn. 1853, ex char. California. To this, or perhaps to the preceding species, may probably belong Polemonium capitatum, Esch. Mem. Acad. Petrop. 54. G. laciniata, Ruiz & Pav. : known from the smaller and spar- ser-flowered forms of the preceding by its oblong capsule. Chili, &c. 55. G. tricolor, Benth. One form has a glabrous calyx, &c. California. 56. G. tenuiflora, Benth., Lindl. Bot. "Reg. &c, 1888. Califor- nia, not common. — Var. latifloua. Corolla? tubo calyce aut paullo aut duplo longiore, fauce lobisque amplioribus. Los Angeles County ? Fremont, Wallace. 57. G. inconspicua, Dougl. — Columbia River to the Platte and Arizona. The corolla is not hypocrateriform, as described and figured in Bot. Mag. t. 2883, at least when fully developed. It is usually ampler; and to the species (which is a widely variable one) I must refer tack G. sinuata, Dougl., Benth. in DC, the flowers of which sometimes attain thrice the size, and nearly connect with the var. latiflora of the preceding ! G. arenaria, Benth. (collected on the sea-beach at Monterey by Rich and Parry), is a glandular-viscid form, with more slender corolla (half an inch long), which is likely to pass into G. tenuiflora. — Geyer's no. 25 and 42, referred to G. inconspicua by Hooker, is partly of that specie?, partly G. pinnatijida. ,, -»— n— Pauci- (in loculis 2-3-) ovulate. 58. G. CRASSiFOLiA, Benth. Chili, &c. Near 67. inconspicua. * * * Flores effuse paniculati, longius pedicellati, minimi. Corolla tenui-infundibuliformis vel subcampanulata (alba seu albida) : stamina juxta sinus inserta, lobis breviora. Ovula numerosa. Semina humectata mucilagine spirillisque destituta! — Annua?, pusillae, e basi ramosissimoe, foliis radicalibus semel pinnatifidis vel incisis. 59. G.' leptomeria, n. sp. Parum glandulosa, floribunda; foliis radicalibus spathulatis seu lanceolatis leviter pinnatilobatis, cauliuis fere integris linearibus, ramealibus bracteisve minimis ; pedicellis erectis flore longioribus seu brevioribus ; corolla angusto-infundibuli- formi sesquilineari demum elongata (ad lineas 3) fere hypocrateri- OF ARTS AND SCIENCES : JUNE 14, 1870. 279 morpha, tubo calyce lobis suisque ovatis duplo longiore ; ovulis in loculis plurimis (seminibus ^ una longis). — Mountain valleys of Nevada and Utab, S. Watson. Resembles some most depauperate and small-flowered forms of G. inconspicua ; yet well marked by tbe nar- row corolla and especially by tbe seeds. GO. G. micro.meria, n. sp. Fere glabra, tenella,laxa ; foliis inferi- oribus pinnatifidis lobis oblongis obtusis divaricatis, caeteris linearibus integerrimis ; floribus sparsis ; pedicellis filiformibus elongatrs patenti- bus demum recurvis ; corolla oblongo-campanulata lineam longa caly- cem parum superante, lobis brevibus ; ovulis in loculis vix ultra 6 ; capsulasubglobosa stylo longiore. — Mountain valleys of Nevada and Utah, S. Watson. Seeds as in the preceding. * * * * Flores sparsi longius pedicellati, sat magni. Corolla aut campanulata aut rotata. Calycis lobi lanceolato-subulati, tubo suo longiores. Anthera? srepius oblongoe. Humiles seu graciles- centes, diffusa?. -i— Annua?, floribus parvulis. ++ Corolla campanulata. 61. G. campanulata, n. sp. Parum viscidulo-pubens, 2-3-polli- caris ; ramis patentibus ; foliis inferioribus lanceolatis parce pinnati- fido-dentatis, ramealibus lineari-lanceolatis soepe integerrimis; pedi- cellis flore interdnm brevioribus ; corolla campanulata (alba?) calyce duplo longiore leviter 5-loba ; staminibus basi lata? corolla insertis inclusis ; ovulis in loculis G- 7. — Foothills of Trinity Mountains, Nevada, Watson. — Corolla three or four lines long ; the broad lobes less than half the length of the ample (yellowish ?) throat, at the base of which the stamens are inserted : no narrowed tube. This and the two preceding species are among the discoveries of S. Watson, in C. King's expedition. ++ ++ Corolla fere rotata. G'2. G. incisa, Benth. in DC. Prodr. G. Lindheimr.riana, Scheele in Linnsea, 21, p. 7G3. Multiovulata. — East Texas to Mexico. G3. G. Gayana, Wedd. Chi. And. 2. p. 82. Pauciovulata ; " semi- nibus in loculis 1 — 2." — Andes of Chili. •)— H— Perennes; floribus majusculis ;" corolla fere rotata; ovarii loculis pluriovulatis. 64. G. fcetida, Gillies, Benth. 1. c. Andes of Chili. 230 PROCEEDINGS OF THE AMERICAN ACADEMY Go. G. rigidula, Benth.l. c. G. glandulosa, Scheele, I. c. Flowers bright blue, showy, according to Lindheimer opening widely only in direct sunshine late in the afternoon and closing at sunset. — Texas to Arizona and Mexico. Var. acerosa. Rigidior ; ramis e basi magis lignosa ad apicem usque crebre foliosis, segmentis foliorum plerisque suhulatis vel acerosis subpungentibus ; pedicellis flore quandoque brevioribus. North New Mexico to Arizona, Fendler, Gordon, Wright, &c. 4. POLEMONIUM, Tourn. Corolla ab infundibuliformi ad rotatam. Stamina basim versus corolla? aaqualiter inserta: filamenta elongata, soepissime declinata, basi pi. m. piloso-appendiculata. Ovula in loculis2-12. Semina hume- facta tegumento mox mucilaginosoet spirillifero modo Collomice. Calyx magis quam in Gilia herbaceus, sub sinubus vix scarioso-membrana- ceus, post anthesin accrescens, lobis muticis. — Herba? perennes rhizo- matibus gracilibus, raro annua? ; foliis semel pinnatis vel pinnatiparti- tis ; floribus creruleis violaceis seu albis. § 1. Corolla infundibuliformis calycem superans, tubo saapius elon- gate Filamenta basi vix dilatata tantum hirsutiuscula. — Pe- rennes, nanae e rhizomate repente, viscido-glandulosoe, moschatae, foliolis perplurimis minimis confertis. Transitus ad Giliam. 1. P. confertum, Gray, Proc. Acad. Philad. 1863. Spithamaaum; foliolis 3-5-sectis secus rhachin quasi verticillatis vel fasciculatis, seg- mentis aut late ovalibus aut lineari-oblongis ; floribus (mellium spiian- tibus) capitato-congestis nutantibus demum racemoso-spicatis ; calycis lobis angustis tubo cylindraceo seu oblongo plus dimidio brevioribus; corolla caarulea, tubo angusto-infundibuliformi calycem superante lobis suis rotundatis 2-3-plo longiore. — Rocky Mountains from lat. 38° to 49°, Nuttall, Parry, Hall & Harbour, Lyall ; E. Humboldt Mountains, Nevada, Watson ; and high sierras of California, Brewer. Corolla 9-12 lines long. Var. mellitum, Gray, 1. c. : laxius ; corolla pallida nunc alba polli- cari, tubo angusto lobis quaduplo longiore. — Rocky Mountains, Hall & Harbour, &c. Wasatch Mountains, Utah, Watson. P. viscosum, Nutt. PI. Gamb. Ilumilius; foliolis integerrimis ovatis rotundisve ; floribus subcorymbosis ; calyce subcampanulato, lobis latioribus tubo subaaquilongo corolla) tubum (lobis suis baud longi- orem) subaequantibus. — Rocky Mountains, about lat. 40°, Nuttall. OF ARTS AND SCIENCES : JUNE 14, 1870. 281 Mixed with dwarfed specimens of the preceding, from which Nuttall'a character of " elongated-lanceolate segments of the calyx" was proba- bly taken. § 2. Corolla inter campanulatam et rotatam, calyce modice longior. Filamenta basi quasi in lamellam dilatata. — Perennes, folio- lis intcgris, superioribus nunc alato-confluentibus, inflorescentia laxiore. (P. grandiflorum, Benth., of Mexico, I do not possess, and have barely seen in herb. Kew.) 2. P. c^eruleum, L. Common from the arctic regions and Alaska to California and through the Rocky Mountains, also through Northern Asia to Europe; very rare eastward (in New York and New Jersey). — P. acutiflorum, Willd., which is reduced by Ledebour to a variety of this species, is an Alaskan form, with ovate acute lobes to the co- rolla (Pallas, Chamisso, &c). All the North American, like the Hima- layan, forms of this species incline to have wing-angled seeds, — quite as much so as in Var. foliostssimuji (P. cceruleum, var. pterospcrma, Benth. in DC. Prodr.). Valde viscido-pubescens ; caulibus bipedalibus usque ad apicem cum ramis floridis corymbo-is foliosissimis; foliolis in rhachin alato-marginatam srepe confluentibus ; floribus minoribus; staminibus styloque corolla (calycem 2 - 3-plo superante) snepius brevioribus. — Through the Rocky Mountain region, Geyer, Fendler, Parry, Vasey, Watson, &c. This approaches 3. P. Mexicanum, Cerv. (Mexico ?) This is distinguished by its shorter corolla, and short lobes of the calyx, which are only half the length of its tube. 4. P. iiujiile, "Willd. Spithamreum ; caulibus laxis 1 - 2-fol:a- tis ; floribus subcorymbosis paucis longius pedicellatis ; calyce ultra medium o-fido ; ovulis 2-4 seminibusque 1-2 in quoque loculo. — P. pulchellum, Bunge, Ledeb, &c. P. Richardsonii, Graham. P. capitatum, Benth., non Esch. P. pvdcherrimum, Hook., a small- flowered form. — Rocky Mountains to those of California, and through the arctic regions and Alaskan islands to Siberia. — P. capitatum of Eschscholtz, from the sands of California, with linear leaflets, &c, cannot be this species, — is probably Gilia multicaulis, or some allied species of that genus. 5. P. reptaxs, L. Atlantic States from New York south and west to Nebraska. VOL. VIII. 36 282 PROCEEDINGS OF THE AMERICAN ACADEMY § 3. Corolla (albida) fere rotata, calyce brevior. Filamenta basi sensim dilatata, parcissime piloso-ciliata. — Anuuoe, debiles, sparsi- flora2 ; foliolis integris. 6. P. micrantiium, Benth. 1. c. British Columbia to Nevada. 3. Miscellaneous Botanical Notes and Characters. By Asa Gray. NAMA, L. The outlines of a monograph of this genus which, in the year 1861, I contributed to the Proceedings of this Academy (vol. 5, pp. 337-339) have long needed some corrections and additions. The following notes for a revision of the genus were mainly drawn up in the Kew Herba- rium, in October, 18G9. § 1. Folia in caulem alato-decurrentia, obovata vel spathulata, pube moll i villosa seu pilosa : rami procumbentes. N. Jamaicensis, L. Pedunculi brevissimi. Semina costato-scro- biculata. N. biflora, Choisy. Pedunculi filiformes. Semina alveolata. — Mexico, collected only by Berlandier. § 2. Folia caulina omnia vel plera basi subamplexicauli sessilia, baud decurrentia, pube molli nee incana. Annua?. N. Berlandieri, n. sp. N. undulata var. macrantha, Choisy, Hydrol. t. 2, f. 1. Ramis gracillimis diffusis, foliis sparsioribus tenui- oribus ovali-oblongis bine inde oppositis, pedunculis gracilioribus, co- rolla majore, capsula oblonga sepalis apice magis dilatatis subdimidio breviore, seminibus obsoletius scrobiculatis, diversa. — Tamaulipas, Mexico, near Reynosa, Berlandier (no. 21 16 = GOO), who alone has met with it. N. undulata, HBK. Foliis soepe undulatis omnibus alternis lineari- seu spathulato-oblongis, inferioribus oblanceolato-spathulatis basi lon- gius attenuatis; cauleerecto; pedunculis plerumque brevifsirais; capsula matura fere lineari calycem suba?quante ; seminibus eximie alveolato- reticulatis. — Extends from Texas and New Mexico to the Andes of Chili, Gillies. § 3. Folia omnia basi attenuata vel petiolata (nee amplexicaulia nee decurrentia). OF ARTS AND SCIENCES : JUNE 14, 1870. 283 * Annua?, pills rigidis vel rigidiusculis hirtse, nee incanre : folia etiam inferiora basi longius attenuata vix petiolata: sepala anguste ex- acteque linearia ! N. iiispida, Gray, 1. c. Semina in loculis 24-40, oblonga, haud ultra £ lin. longn, obsoletissime rugulosa. N. demissa, n. sp: E radice exili patenti-ramosissima, 2-3-pol- icaris, hirsuta ; foliis spatbulato-linearibus ; floribus subsessilibus ; seminibus in loculis 10- 12 ovalibus ^ lin. longis obsolete grossius scro- biculato-rugosis ; eoet. fere praecedenfis. — Dry or desert regions of Ne- vada, Fremont, Anderson, Torrey, Watson in King's expedition ; forms with ample corolla sometimes twice the length of the calyx. Fort Colville, Washington Territory, Lyall, in herb. Kew. : a ve\-y low and condensed form, with corolla not exceeding the calyx: characters indi- cated by Professor Oliver. * * Annuoe, pube molliori vel breviori parum cinerea: sepala (ut in pleris) sursum pi. m. dilatata. h— Folia basi attenuata vel acuta, plera (saltern superiora) sessilia vel subsessilia. ++ Semina haud ultra ^-lineam longa, lato-ovalia, subloevia, obso- letius costata et areolata. N. Saxdwicensis, Gray, 1. c. Ramosissima, pube crebra hirsutulo- cinerea ; foliis brevibus spathulatis margine mox revolutis ; pedunculis calyce longioribus vel brevioribus; floribus parvis ; corolla calycem parum superante; capsula ovali. N. Coulteri, n. sp. Laxe ramosissima, spithamrea, hirsutulo- pubescens ; foliis oblongo-spathulatis planis membranaceis, imis tantum in petiolum attenuatis ; pedunculis calyce brevioribus srepius brevissi- mis; corolla calyce duplo longiore ; capsula oblongn. — "California" [perhaps Arizona], Coulter, no. 463. Nazas Valley, Bolson de Mapi- mi, Chihuahua, Mexico, Gregg. It much resembles A7", dichotoma ; but is well distinguished by the more hirsute pubescence without viscidity, the larger corolla (about five lines long), and especially by the seeds. ++ ++ Semina £- ^-lineam longa, ovali-oblonga, favosa. N. dichotoma, Ruiz & Pav.; Gray, 1. c. Pube brevi plus minus viscosa, corolla calycem haud vel parum. superaute, capsula ovato- 284 PROCEEDINGS OF THE AMERICAN ACADEMY seu breviuscule oblonga, seminibus grosse insculptis, distineta. — Mex- ico to Bolivia. — Var. angtjstifolta : foliis lineari-lanceolatis. (Var. pane/flora, Choisy ?) New Mexico, Fendler, no. G44, also Wright, no. 1584. "Colorado," Hayden. — The seeds in this widely diffused species are well marked, being so coarsely pitted that five or six pits fill the whole girth ; and the thick obtuse edges of, or elevated por- tions between, the pits appear likewise to be minutely rugose under a strong lens. -f— 4— Folia omnia graciliter petiolata : semina fere lagvia. N. t.atifolia, n. sp. Erecta, laxe ramosa, parce tenuiter hirsutula ; foliis membranaceis ovatis obtusis basi ssepius cuneatis (lin. G-9 et petiolo lin. 3-5 longis) ; pedunculis flore parvo longioribus ; sppalis apice insigniter dilatatis corollam (albam) adasquantibus capsula brevi- ovoideo longioribus ; seminibus globoso-ovoideis, areolis obsoletis. JV. ? rupincola, Mart. & Gal. ex Walp. Repert. G, p. 565. — Mexico, Oax- aca, in fields and forests of the western Cordilleras, at the altitude of about 8,000 feet, coll. Galeotti, no. 10G8. Valley of Mexico, coll. Bourgeau, no. G10. * * * Perennes ? forte annua? caulibus diffusis basi lignescenti- induratis, pube mollissima : folia parva, cum petiolo brevi semi- pollicaria vel minora: sepala sursum latiora : semina minima. N. rcpicola, Bonpl. ex Chois. 1. c. Depressa, pube brevi vix cinerea ; foliis obovatis in petiolum marginatum sensim attenuatis ; seminibus subglobosis grosse parceque alveolatis. iV. origanifulia, Gray, 1. c, non II BK. N. dichotoma var. parvifolia, Torr. Mex. Bound, p. 147. Northern borders of Mexico to Yucatan (Schott) and Peru ? N. oric.anifolia, II BK. Nov. Gen. & spec. 3, p. 130, t. 218. Cinereo-villosa, subincana ; foliis oblongo-spathulatis ovalibusque petiolo distincto; pedunculis sparsis ealyce longioribus ; seminibus lrevibus? .... — Mexico. The principal specimens I have seen (Sierra Mad re, Seemann) seem distinct enough from the foregoing, which, however, Kunth's figure too much resembles. He figures, but does not describe, the seeds as smooth. * * * * Perennes, proceriores basi suffruticosa, foliis floribusque majoribus, pube hispida vel sericeo-canescente. Semina in H. hirsuta ut videtur compressa ? in caateris ignota. OF ARTS AND SCIENCES : JUNE 14, 1870. 285 ■i- Mexicans; foliis Litis penninerviis basi soepius obtusa distincte petiolatis, floribus in cymula laxa tcrminali nuda: sepala sursum latiora. N. hirsuta, Martens & Galeotti ; Walp. Repert. 1. c. Fere his- pida ; foliis viridibus oblongis ; corolla baud ultra semipollicari. — Oaxaca, Galeotti. N. sericea, Willd.: Eoem. & Schutt. Syst. 6, p. 189. Sericea ; foliis ovatis seu ovato-lanceolatis subtus incanis ; corolla subpollicari. JV. longiflora, Cbois. I. c. t. 2, f. 2. I have it only in the collection of Coulter, no. 914, 915. h— h— Californicae, lana araneosa; foliis lanceolatis basi sensim at- tenuatis vix petiolatis, floribus in glomerulos sessiles axillares et terminales confertis : sepala angusta sursum baud latiora. N. Lobbii, Gray in Proceed. Am. Acad. 6, p. 37. Sierra Nevada, Lobb, Mrs. Davis, Kellogg. N. systyla. Gray, 1. c, is Draperia systyla, Torr. in Proceed. Am. Acad. 7, p. 401. LYCOPUS, L. In the last edition of the Manual of Botany, I was induced to con- sider all the American Lycopi with acute-pointed calyx-teeth as forms of L. Europceus. Having now bad occasion to study them anew, I see grounds for a different opinion, and for disposing our species as follows : — §1. Stoloniferce, — stolonibus filiforraibus elongatis apice demum tuberiferis. * Calycis dentes 4, raro 5, cum bracteis brevissimis obtusi vel obtu- siusculi, fructiferi nuculis breviores. 1. L. Viuginicus, L. — Forma depauperata: L. xvni floras Michx. Li. pumilus "Vahl. — Forma procera, var. macropiiyllus : L. macro- phylhts, Benth. * * Calycis dentes 5, acutissimi, nuculis longiores. h~ Bracteas minima?: corolla calyce fere duplo longior : stamina rudimentaria brevissima, ovalia seu linguajformia. L. sessilifolius, n. sp. Glaber; caulibus adscendentibus humili- bus acutiuscule 4-angulatis; foliis omnibus arete sessilibus ovatis Ian- 286 PROCEEDINGS OF THE AMERICAN ACADEMY ceolato-oblongisve parcius argute serratis ; calycis dentibus subulatis rigidis. — L. Europeans var. sessilifoUus, Gray, Man. ed. 5, p. 345. — Pine Barrens of New Jersey, at Atsion, Canby, and Toms River, C. F. Parker, September. L. kubellus, Moeneh. Suppl. (1802). Subglaber ; caule laxo suberecto 1 — 2-pedali, angulis obtusiusculis ; foliis ovato-oblongis seu oblongo-lanceolatis medio argute serratis utrinque attenuatis acumina- tis petiolatis ; calycis dentibus triangulato-subulatis baud rigidis. — Presenius in Flora, 1842 ; Bentb. in DC. L. obtusifolius Vabl ? non Benth. : but if so a depauperate form, and probably not from Hudson's Bay: the indications of habitat in the plants of Michaux's collection are not always correct. L. Europceus, var. integrifulius, Gray, Man. L. Arkansanvs, Fresenius, 1. c. ; a puberulent form, with rather broader and less pointed calyx-teeth, the rudiments of sterile stamens varying from Ungulate to linear-spatulate. — Pennsylvania? and Ohio to South Carolina, Louisiana, and Arkansas. h— +- Bractea? exteriores acutissimi flores scepius adosquantes : corolla calycem vix superans : stamina rudimentaria filiformia, apice capi- tellata vel clavellata. L. lucidus, Turcz. Caule valido 2-8-pedali erecto superne acu- tangulo ; foliis lanceolatis vel oblongo-lanceolatis (poll. 2—4 longis) acutis vel acuminatis grosse argutissinie serratis basi obtusa nunc acuta subsessilibus ; calycis dentibus attenuato-subulatis. Var. Ajiericanus : foliis vix lucidis utrinque saspius hirtello-pu- beris ; caule plerumque hirsutiori ; calycis dentibus minus rigidis. L. obltisifolius, Benth. in DC, vix Vahl. — Saskatchawan (Bourgeau, &c.) to Nebraska and Kansas, Fendler, E. Hall. Our plant clearly is not to be separated from the L. lucidus of N. E. Asia, which, again, too much resembles L. australis, in which also the dots of the leaves are unusually large. § 2. Estolonosce, sed rhizomatibus pi. m. repentibus : dentes calycis 5, acutissimi, rigidi, corollam suboequantes, fructiferi nuculis longi- ores : bracteoe subulata?, nonnullas flor3s adaequantes. Glabra? vel pubescentes, caulibus acute tetragonis, foliis soepius incisis vel pinnatifidis. L. sinuatus, Ell. Caule acutissime tetragono ; foliis lanceolatis vel oblongis acuminatis irregulariter incisis et laciniato-pinnatifidis sura- misve sinuato-dentatis basi attenuatis in petiolum longiusculum ; calycis OF ARTS AND SCIENCES : JUNE 14, 1870. 287 dentibus triangulari-subulatis brevi-cuspidatis ; staminibus rudimenta- riis filiformibus apice capitellatis seu clavellatis. L. sinuatus, exaltatvs, & angustifolius, Ell. L. vulgaris & august if alius, Nutt. Gen., sine char. L. Europceus (Walt. &c.), van sinuatus, Gray, Man. 1. c. — From Canada to Oregon, California, and Florida. L. Europ^eus, L. Caule acutiuscule tetragono ; foliis latioribus subsessilibus, dentibus lobisve subsequalibus ; calycis dentibus subulatb- spinulosis; staminibus rudimentariis obsoletis vel nullis. — Collected long ago by Mr. Elias Durand near Norfolk, Virginia, where it was said to abound ; recently detected on Petty's Island, near Philadelphia, by C. F. Parker, on waste ballast : adventive from Europe, and proba- bly not established. SESELT, L. It is on the whole remarkable that so many of the leading genera of Umbelliferce in the northern parts of the Old World should be without representatives in North America. Some of these gaps may be filled Avhen the, botany of our Western regions comes to be more completely investigated ; as one appears to be now by the two species of Scseli here characterized. The first of these plants has been for several years known to me in a specimen collected by Nuttall, in flower only, and presented by the kind Mr. Durand. It is ticketed by Nuttall " Cynomarathrum saxa- tile" but it is not published. The same plant, in fruit only, was gathered by Dr. Parry in 1867, in the mountains of the northeastern part of New Mexico. The second species is no. 221 of Hall and Harbour's collection in the skirts of the Rocky Mountains, in flower only, and therefore not hitherto determined. Dr. George Vase}', in going over the same ground in 1868 at a later season, had the good fortune to obtain specimens in fruit; it is no. 221 of his recently dis- tributed collection. S. Nuttallii, n. sp. Acaulescens, glabrum ; foliis subternato-pin- natipartitis, segmentis linearibus subulato-mucronatis, majoribus denti- bus lobisve 1-3 nunc instructis ; scapo simplicissimo nudo folia baud superante ; floribus ut videtur albis ; fructu oblongo glaberrimo pedicello parum longiore dentibus calycis subulatis conspicuis coronato; vittis in pericarpio parum suberoso ad valleculas et bine inde sub jugis tenui- bus ; seminis sectione transversa semicirculari subcrenata. — Rocky Mountains, Nuttall. On rocks, Huefano Mountains, New Mexico, 288 PROCEEDINGS OF THE AMERICAN ACADEMY Parry, coll. 1867, no. 83. — A span high, from a thickish branching caudex. Involucre as long as the pedicels, in Nuttall's specimen whit- ish and as if somewhat petaloid, the leaflets lanceolate or linear and a little connate* at the base. Rays of the umbel from three to six lines long, of the umbellets one or two lines long. Styles long. Fruit a line and a half or two lines in length, the jugoe rather salient. S. Hallii, n. sp. Acaulescens, glabrum ; foliis pinnatisectis 3 - 5- jugis, segmentis cuneatis oblongisve incisis vel pinnatifidis, lobis 3-7 brevibus mucronatis nunc paucidentatis ; scapo sirnplicissirno nudo folia superante ; floribus flavis; fructu anguste oblongo gla- berrimo pedicello brevissimo multo longiore ; dentibus calycis bre- vibus demum evanidis ; vittis ad valleculas magnis cum accessoriis ssepius in quoque jugo minimis; seminis sectione transversa subquad- rata. — Low mountains of Colorado, Hall and Harbour; mentioned in Proceed. Acad. Philad., March, 1863, p. 63, no. 221. Bear Creek, seventeen miles west of Denver, Dr. George Vasey. — Scape ten inches high, slender. Umbel nearly as in the preceding, but the secondary rays are very short, as also are the ovate-subulate leaflets of the involucel. Styles slender. Fruit narrow, two lines long, abrupt both at the base and apex ; the vittas filling the intervals between the narrow and slightly salient jugre. The odor of the fruit in both species is rather strong. Notwithstanding the yellow flowers of this species and the slender styles in both, they are confidently referred to Sesell. Miscellaneous Specific Characters, fyc. Viola renifolia, n. sp. Rhizomate floribusque V. Mandce vel paullo majore ; foliis reniformibus (adultis saspius poll. 2 latis) utrin- que cum petiolo villoso-pubescentibus ; scapo pubescente. — This Vio- let was first brought to my notice by Miss Shattuck of Mount Holyoke Seminary, who collected it at, or received it from, " East Elba, New York." Later Mr. Henry Cillman sent it from Ontonagon, Lake Superior; and now I have fresh specimens and the living plant from Mr. Frank A. Sherman, of Hanover, New Hampshire. Also speci- mens from -the colder parts of Oneida Co., New York, from Professor Paine. It grows in company with V. blunda, which it closely resem- bles as to the flower, but the leaves are more like those of V. palus- tris ; yet they are more strictly reniform, and are conspicuously beset with pale, soft and tender, lax hairs. OF ARTS AND SCIENCES : JUNE 14, 1870. 289 Abutilon Palmkrt, n. pp. Fruticosum ; foliis sinu profundo clauso rotundato-cordatatis denticulatis brevi-aeuminatis (nonnullis obsolete triIobi<) utrinque albido-velutinis ; petiolis ramisque molliter puberulis; pedunculis infimis petiolo longioribus ; calyce pedicello cap- sulaque 8-earpellari molliter villosissimo, carpellis membranaceis 3-4- spermis breviter acuminato-rostratis. — Yaqui River, Sonora, Mexico, Dr. E. Palmer. Leaves in (be specimens not over two incbes in diameter. Corolla orange-yellow, more than an inch in diameter. Seeds in one row, nearly glabrous. Kostelktzkya digitata, ii. sp. Minutissime stellulato-pubescens cum stellulis adpressis majoribus ; ram is paniculatis ; foliis 3 — 5-parti- tis, petiolo setoso-hispido, segmentis cum foliis simplicibus ramulorum linearilanceolatis denticulatis subtus setis triradiatis conspersis; pedun- culis unifloiis gracilibus ; calyce tantum puberulo ; capsula 5-carinata ad suturas setosa ; seminibus glabris. — Yaqui River, Sonora, Mexico, Dr. E. Palmer, 1869. Corolla little over half an inch in diameter, in the dried specimens purplish with a yellow eye. Desmodium Ielixoense, n. sp. D. canescentem foliis floribusqne, D. rigidum racemo et fructu referens; caule erecto 3— 5-pedali cum foliis pube brevi birsutulo ; foliolis ovatis oblongis seu ovato-lanceolatis obtusis (poll. 2-4 longi.-) subcoriaceis subtus cinereis venis venulisque prominulis eximie reticularis, inferiorlbus petiolum subaequantibus ; stipulis persistentibus (bracteisque caducis) ovato-lanceolatis sensim acuminatis striatis ; racemo simplici; lomento brevissime stipitato vix ultrapollicari ad suturam utramque (infer, profundiorem) sinuato, articulis 3-5 ovalibus lineas 3 baud excedentibus. — Illinois, in dry ground, Vasey, Hall, Bebb, Bergen, Stewart, &c. ; apparently common, but not yet detected beyond the limits of that State. Smaller speci- mens have been confounded with J), rigidum, and larger, without fruit, with D. canescens ; but it is abundantly different from both. Astragalus arrectus, n. sp. Oroboidei: sesquipedalis, cinereo- pubescens ; caule stricto suleato; foliolis 12-15-jugis anguste oblon- gis retusis supra glabellis subtus pubescentibus ; stipulis discretis sca- riosis ; pedunculis elongatis cum spica laxiuscula 3 — 4-pollicaribus ; floribus (seraipollicaribus) in pedicello brevissimo adscendentibus ; caly- ce campanulato nigricanti-puberulo, dentibus subulatis tubo dimidio brevioribus ; corolla ut videtur alba fere recta ; legumine arrecto coria- ceo oblongo (subpollicari) recto cuspidato basi subito in stipitem caly- cem subcequantem contracto, ventre leviter carinato, dorso sulco lato vol. viii. 37 290 PROCEEDINGS OF THE AMERICAN ACADEMY profundo, intus bilocellato polyspermo. A. leucophyllus ? Hook. Lond. Jour. Bot. 6. p. 211, non Torr. & Gray, Fl. — Ivooskooskee River, coll. Geyer. Brickellia atractyloides, n. sp. Fruticosa, ramosissima,. vix pedalis; ramulis foliosis puberulis monocephalis ; foliis rigidissimis sub- alternis subsessilibus ovato-lanceolatis spinuloso-acuminatis pauciden- tatisque 3-5-nervibus, costis cum venis adscendentibus anastomosantibus prominulis, paginis conformibus scabrido-atomiferis ; pedunculo 1^2- bracteolato capitulum multiflorum (semipollicar'e) bis terve excedente ; involucii campanulati squamis pauciseriatis, exterioribus ovato- inti- mis lineari-lanceolatis, omnibus subito acuminatis ; acheniis secus costas hirtellis; pappi setis circiter 20 tenuiter saltern -inferne barbellulatis. — Utah, near the Rio Colorado, 1870, Dr. E. Palmer. — Leaves less than an inch long, coriaceous and rigid, tapering into a spinulose point and beset with a few rigid spinulose teeth. This species would natu- rally be associated with B. spinulosa, of Northern Mexico, but it has forty or more flowers in the head and a minutely barbellulate or above merely scabrous pappus. Linosyris squamata, n. sp. Fruticosa, glabrata, ramosissima ; ramulis scopariis viridibus substriatis ; foliis squamiformibus brevis- simis (I'm. l-2 1ongis) lato-subulatis triangularibusque subadnatis ; capitulis subracemosis vel solftariis ramulos terminantibus plurifloris ; involucri squamis oblongis obtusissimis margine subscariosis laxis pauci- seriatis et in bracteolas minores decrescentibus ; corollas limbo fere 5-partito tubo dirnidio breviore, lobis patentissimis lanceolatis (nervo centrali percursis ! ) ; antheris basi subsagittatis ; styli ramis appendice brevissimo obtuso superatis ; achenio glaberrimo laevi subclavato pappo molli (corolla; tubum adrequante) cTimidio breviore. Var. Breweri, gracilior, parcius squamata ; capitulis paucioribus minus bracteolatis ; pappo ut videtur fusco. — Low hills of the Sierra Santa Monica, Los Angeles Co., California, Professor Brewer. I had mistaken this for the male of a Sergiloid Baccharis. Var. Palmeri, crebrius ramosa ; squamis loco foliorum approxima- tis sub capitulis imbricatis involucrum longe bracteolantibus ; pappo albo. — Desert of the Colorado, Arizona, 1870. Dr. E. Palmer. — The achenia, which are perfectly fertile, resemble .those of a Baccharis. The mid-nerve to the lobes of the corolla and the somewhat sagittate base of the anthers are as in Tetradymia ; the style is of the Aster- oideous type. Heads four or five lines long. In Dr. Palmer's fine OF ARTS AND SCIENCES: JUNE 14, 1870. 291 specimens the involucre is remarkably imbricate-bracteolated clown for the quarter or third of an inch. Corolla bright yellow, its lobes a line and a half lonjr. Linosyris Sonoriensis, n. sp. Glabra, parum viscidula, ramo- sissima^ ramulis gracillimis ; foliis parvis filiformibus apice recurvo nunc fere hamato ; capitulis laxe paniculatis; involucro 5-8-floro, squamis pauciusculis subcarinatis coiiaceis margine scariosis apice obtuso fere herbaceis oblongis, exterioribus brevioribus ovatis; ramis styli appendice ovato-lanceolata obtusiuseula portionem stigmaticum parum excedente superatis ; acheniis elavato-oblongis villosis. — Dis trict of the Yaqui River, in the Mexican province of Sonora, 1869, Dr. E. Palmer. 20. Melampodium cupulatum, n. sp. Hispidulum ; caule erecto ramosissimo ; foliis (inferioribus ignotis) ramealibus oblongo-lanceolatis integerrimis basi attenuatis vix petiolatis ; pedunculis filiformibus sub- paniculatis monocephalis; involucro gamophyllo crateriformi ebracteato 5-lobo, lobis lato-ovatis brevibus, squamis int. achenia involventibus rugoso-tuberculatis apice truncatis hand cueullatis clausis; ligulis aureis. — Mexican province of Sonora, Dr. E. Palmer. — Heads about as large as those of M. cinereum, DC, but the bright yellow rays smaller: scales of the involucre united to above the middle. Palafoxia leucophyela, n. sp. P. lineari affinis ob corollas faucem angustam cylindricam tubo proprio lobisque brevibus 2-3-plo longiorem ; foliis brevibus (semi - subpollicaribus lato-linearibus ob- tusissimis utrinque canescenti-sericeis ; involucro magis pubescenle ; pappo corolla incainata subdimidio breviore, paleis 4 majoribus lineari- oblongis costa valida baud .excurrente emarginatis, 4 alternis breviori- bus spathulato-oblongis costa medio evanida. Achenia extima 2-4 pro pappo soepius paleis paucis brevissimis corneis subconcretis coro- nata. — Carmen Island, Gulf of California. Involucre half an inch, achenia and corolla each four or five lines in length. The branching stem is said to be about ten feet high, with an indurated, perhaps woody base, and to flower through the season. — Cultivated in the Botanic Garden at Cambridge, it is obviously disposed to become shrubby. Pentstemon Palmeri, Gray, in Proceed. Am. Acad. 7, p. 378: char, e pi. viva reformatus : Glaucescens, glaber, bipedalis ; foliis crassiusculis, inferioribus spathulatis et ovato-lanceolatis argute denti- culatis in petiolum marginatum angustatis, superioribus perfoliato-con 292 PROCEEDINGS OF THE AMERICAN ACADEMY natis srepe integerrimis ; pnnicula multiflora elongata virgata nuda ; bracteis omnibus minimis subulatis ; pedunculis 1 -3-floris pedicellisve gracilibus; sepalis ovatis glabris; corolla albo-rosen (i. e. alba roseo suffusa) pollicari, fauce e tubo proprio brevi (lin. 3 longo) subito max- ime ventricoso-ampliata limbo ringente duplo longiore, labys latis, superior! bilobo, inferiore patentissimo basi intus parce barbato pro- funde 3-lobo, lobis nequalibus conformibus ; filamento sterili ultra f'au- cem exserto a pice incurve in.-igniter longe flavo-barbato. — Cultivated from seeds of uncertain source, probably from Utah. Corolla almost an inch broad across the spreading lips (anteriorly-and posteriorly) : lower lip 7-8 lines broad: a light reddish line runs up each lobe of the lower lip. Lycium Palmeri, n. sp. Inerme ? subpubescens; ramis gracili- bus; foliis angusto-spathulatis (lin. G-8 1ongis); floribus breviuscule pedicellatis tetrameris ; calycis lobis lanceolatis obtusiusculis tubo suo carapanulalo parum longioribus, uno saltern paullo majore ; corolla (lin. 5 longa) calycem tertia parte superante, lubis late ovalibus pube- ro-ciliolatis, tubo paullo brevioribus ; filamentis ima basi intus lano- sissimis; antheris oblongis. — Yaqui River, Sonora, Mexico, Dr. E. Palmer. This apparently belongs to the third section in my revision of the North American Lycia, in Proceed. Am. Acad. 6, p. 45. Corolla broad for its length, the expanded limb being about half an inch in diameter. Salvia platyciieila, n. sp. Brachyanthearum, aflf. S. laxce : herbacea (basi ignota), minutissime cinereo-puberula ; f'oliis oblongis ovatisque utrinque obtusis obsolete crenato-serratis, petiolo tenui, floralibus lanceolatis deciduis ; racemo breviusculo ; verticillastris paucifloris ; calyce puberulo recto ; labiis ovatis aequalibus camdeo tinctis mox ampliatis tubo infundibuliformi nervoso oequilongis, supe- riore integerrimo, inferiore apice bifulo ; corolla? eajrnleas tubo incluso; connectivo subcrasso glaberrimo ; stylo superne bine barbato. — Car- men Inland, in the Gulf of California, Dr. E. Palmer, 18G9. Corolla half an inch long; the upper lip hardly, the dilated lower lip some- what, exceeding the calyx. Coldenia (Tiquiliopsis) Palmeri, n. sp. : pube brevi et brevis- sima densa molli incana ; foliis ovatis crebre plicato-nervosis petiolum subrequantibus ; calyce tubo corolla? dimidio breviore, lobis lanceolatis tubo ipso breviore. — S. E. California or Arizona, on the lower Colo- rado, Dr. Edward Palmer, 18G9. Well distinguished from C. Nuttallii OF ARTS AND SCIENCES : JUNE 14, 1870. 293 by the fine hoariness and the absence of all hispid or even hirsute haii-s, and by the calyx. It is apparently more erect and bushy. The corolla is similar but larger, and has roundish-oval lobes. No fruit was collected, by which to learn whether it accords with Tiquiliopsis in having two-parted cotyledons. The leaves are more like those of C. fusca, but the rib-like veins more numerous and crowded, from four to six pairs, and the surface in the younger specimens strongly and beautifully plicate. This has likewise been collected in Utah or Nevada by S. Watson, in Clarence King's expedition. Eriogonu.m Kkllogii, n. sp. Umbellata, depressum, caudicibus rarnisve sterilibus substoloniferis filiformibus late pulvinato-coespitosum ; foliis rosulatis spathulatis parvis (lin. 3 -4-longis) basi angustata sessili- bus sericeo-incanis (supra nunc glabrescentibus) ; scapo gracili tripolli- cari medium versus verticillo e foliis 3-4 parvis instructo involucro solitario cyathiformi G-7-lobato terminator perigoniis luteolis dtraum albidis roseo tinctis extus glaberrimis, stipite gracili, segmentis subcon- formibus ovalibus obovatisque intus basi cum parte inferiore filamento- rum villosis ; cotyledonibus late ovalibus excenfricis radicula parum longioribus. — In fir-wOods, forming tufted mats, Red Mountain, Men- docino County, California, Dr. A. Kellogg, July 1, 1869. Involucre silky-canescent. Perigonium two or in fruit nearly three lines long, not including the stipitiform base of fully half a line. Except that the perigonium is wholly glabrous exteriorly, this neat species would stand next to E. Douglnsii : but the head and the leaves are smaller, and the flowers fewer: the whorl on the scape usually consists of only three bract-like leaves. The foliage is more like that of a condensed and alpine form of E. ccespitosum. Lastaijri^ea Chilensis, Itemy. In Proceed. Amer. Acad. 8, p. 199, where this is first recorded as a Californian plant, on the authority of a specimen collected by J. Blake, some doubt was expressed as to whether it was there indie of the tube of the corolla. Keithia marifolia, Schauer, in Linnaea, 20, p. 705, from the same region, may probably be added to this genus, at least if no. 1080 of Coulter's Mexican collection is of that species: for in Coulter's plant the rudi- ments of the upper pair of stamens (of which in Aschenborn's plant there is said to be "nidhnn vestigium"} are conspicuous, and even with vestiges of the abortive anther. But no trace of the pilose ring is found. Poliomintiia ixcana. Ramis gracilibus cum foliis linearibus (imisve oblongis) planis obtusis pube brevissima creberrima canescenti- bus ; verticillastris paucifloris ; pedicellis brevissimis ; calyce breviter tubuloso 15-nervi villosissimo ; tubo corollas parum exserto, fauce am- pliata intus piloso-annulata. Hedeoma incana Torr. Bot. Mex. Bound, p. 130. — New Mexico, near El Paso, &c, Parry, "Wright, Bigelow, Palmer. — Corolla only twice the length of the calyx. Poliomintiia loxgiflora, n. sp. Pube molli laxiori ; foliis ovalibus vel obovatis (cum petiolo brevi lin. 4—6 longis) supra viridu- lis subtus cano-tomenlosis subvenosis ; pedunculis in axillis solitariis brevibus unifloris bibracteolatis ; calyce elongato (subsemipollicari) vix striato 13-nervi ; corolla tubulosa sursum sen-nm paulloque ampli- ata longe exserta extus piloso-pubescente, labiis brevibus, annulo prope basim ; staminibus styloque exserlis. — Nor.thern part of Mexico (station unknown), Dr. Gregg, 1848-1849. — Corolla an inch and a half Ion 2. OF ARTS AND SCIENCES : SEPTEMBER 13, 1870. 297 Six hundred and twenty-third Sleeting. September 13, 1870. — Monthly Meeting. The President in the chair. The Corresponding Secretary read letters from Messrs. New- comb, Safford, H. J. Clark, and Merivale, acknowledging their election by the Academy. The President stated that when abroad he procured a com- plete set of the Proceedings of the Cambridge Philosophical Society ; after a delay of nearly a year, they had not yet come to hand, but he still hoped to recover them. He also Called attention to a copy of the Greek Dictionary of Professor Sopho- cles, in which the author acknowledged his indebtedness to the Academy in the following note : — " The greater part of the Author's Glossary of Later and Byzantine Greek, forming Vol. VII. (new series) of the memoirs of the American Acad- emy, has been incorporated in the present book." Professor Benjamin Peirce referred to the appropriation recently made by Congress to observe the eclipse next Decem- ber, and stated that the full number of observers had not yet been obtained. As the English government has withdrawn the vessel offered to the Royal Society, it becomes the more necessary that great efforts should be made to render the American expedition a success. Mr. W. H. Dall referred to the expedition organized in 1865 to explore the route for the International Telegraph line be- tween the mouth of the Amoor River and some point in the United States territory. To this expedition a scientific corps was attached, under the leader- ship of the late lamented Robert Kennicott. The special problems to be solved were those of the boundary of the water-shed of the extreme northwest portion of the continent, and the distribution of animal life in the same region. The result of these explorations showed that the great Yukon River of the Hudson Bay territory was identical with the Kivichpdk of the Russians, and debouched into Bering Sea, south of Norton Sound ; that the Rocky Mountains, instead of being prolonged in a nearly straight line northward to the Arctic Sea, were really bent vol. viii. 38 298 PROCEEDINGS OF THE AMERICAN ACADEMY to the northwest about latitude 65°, and, trending with the coast, formed, with another volcanic series of mountains, the backbone of the Alaskan Peninsula and the Aleutian Islands. Instead of a confused mixture of eastern, western, and Asiatic forms in the bird-fauna, it was discovered that the latter was mostly composed of Eastern and Cana- dian forms, which passed westward north of the mountain wall of the Alaskan Range, and, throwing out the water-birds, contained very few representatives of the West American avi-fauna ; fewer, indeed, in number, than those of the Eastern type, which encroached on the west- ern district south of the mountains along the coast. The distribution of the marine animals presented some phenomena of great interest not yet fully worked out or explained. The " line of floating ice " in Bering Sea passes between St. Matthew and the Priby- loff group of islands, and appears to form an invisible but very distinct line of demarcation, north of which the fur-seal, cod, and marine in- vertebrates, typical of the temperate west-coast fauna, do not pass ; while the white bear, certain fish, and all the strictly arctic inverte- brate marine forms, keep as constantly to the north as the others do to the south side of the line. The glimpses thus obtained of a marine fauna of wonderful richness, and the great interest attaching to the deep-sea dredgings, inaugurated by the U. S. Coast Survey, and since carried on by Carpenter and Wal- lich, Jeffreys, Sars, MacAndrew, and others, have impressed me with a desire to attempt a further exploration of the marine fauna of these regions. They are of special interest, from the fact that the researches of Carpenter, Adams, MacAndrew, and Forbes have shown an identity of species common to our northwest coast, Japan, the JEgean Sea, and, finally, the Red Sea ; and the phenomena revealed by the dredge have a very important bearing not only on the distribution of animals, but on geology and the serial succession of animal life in time. I hardly feel justified at present in saying more than that I have strong hopes that such explorations will not long be delayed, and that they will probably be prosecuted in connection with a hydrographic survey of the little-known coasts and islands of that portion of the con- tinent ; a survey which will, if successful, bring forth results of inter- est and value not only to the naturalist, but to the physicist, geologist, and those engaged in purely commercial pursuits. Remarks on this communication were made by the President and Professor B. Peirce. OF ARTS AND SCIENCES: OCTOBER 11, 1870. 299 Six hundred and twenty-fourth Meeting. October 11, 1870. — Monthly Meeting. The Corresponding Secretary in the chair. The Corresponding Secretary read a letter from the Ameri- can Oriental Society, thanking the Academy for the use of their room. Professor Joseph Winlock exhibited a contrivance for record- ing the position of lines in the spectrum, especially adapted to solar eclipses. A silver plate is attached to the telescope of a spectroscope, and a graver to its stand. By a simple motion the position of any line may be permanently recorded and afterwards measured. The principal lines of the solar spec- trum are first recorded, the plate is then moved slightly back- wards, and a number of spectra may be drawn on the same plate and compared with one another. Since the spider-lines may be invisible on account of the darkness, a break is made in the one which is vertical, and a spark from a Ruhmkorff coil passed through it, thus giving a bright spot of light. He pro- posed to apply this method of recording to determine the decli- nation of a star in meridian instruments. Mr. George W. Hill presented a paper on the determination of the mass of Jupiter from its effect on the asteroids. Those are selected whose time of revolution is nearly one half that of Jupiter, and the perturbation thus produced is one of the largest in the solar system. Professor N. S. Shaler made a communication on the figure of the continents of Mars, compared with those of the earth. In both there is a tendency to point towards one pole, — those of Mars to the north, of the Earth to the south. Remarks on this subject were made by Professors Lovering, Whitney, and Winlock. Dr. E. H. Clark made a communication on hydrate of chlo- ral, supplementary to one made by him three months or more ago. He stated that physiological experiments on man and the lower animals with this substance had shown it to possess a 300 PROCEEDINGS OF THE AMERICAN ACADEMY peculiar power over the living economy, and that chemical ob- servation had confirmed the results of physiological experi- ment. The hydrate of chloral had already assumed a definite position in therapeutics. As a hypnotic it had been shown to be an agent sui generis. The sleep it produced resembled natural sleep very closely, and was unlike the sleep produced by opium, Indian hemp, alcohol, hyoscyamus, or any other known agent of the materia medica. Dr. Clark concluded his communication by some observations on the absorption and elimination of hydrate of chloral, and on its modus operandi while in the system. Dr. Charles Pickering referred to Professor Sophocles's lexicon as a most valuable addition to the' works of American scientists. Dr. T. S. Hunt made some remarks on the Siemen's process of making cast steel, and called attention to the beautiful ex- ample it presents of the dissociation of gases. Six hundred and twenty-fifth Meeting. November 9, 1870. — Stated Meeting. The President in the chair. The President stated that it would be necessary for the soci- ety to elect a secretary to serve during the absence of Professor E. C. Pickering. It was voted that Professor N. S. Shaler act as secretary ad interim. The committee appointed to consider the disposition of the income from the Rumford Fund presented the following re- port, which was accepted. The undersigned respectfully report on the questions referred to them : — That the Rumford Fund was founded for the purpose of enlarging and diffusing knowledge concerning heat and light. The decree of the S. J. Court respects this purpose perfectly ; and only provides new methods for carrying it into effect. OF ARTS AND SCIENCES: NOVEMBER 9, 1870. 301 The Academy may publish Rumford's works, and Professor Lover- ing's paper on the Aurora, and such other works or papers as may reasonably be considered promotive of the purpose of the fund. They may give or exchange these publications in any way they think subservient to the same purpose. They may sell the books. But in selling them they treat them as merchandise ; and as merchandise they were paid for by the Rumford Fund and belong to that fund. And the money received for them should be credited to that fund. A profit or advantage to the Academy seems not to have been in the mind of Rumford in creating the trust, nor in the intention of the Academy in accepting it ; nor in the contemplation of the court in making their decree. It may be that the Academy would be permitted to charge the common commission for the care of property held in trust ; but, beyond this, we think any profits arising from any employ- ment or disposition of the fund, belong, not to the Academy, but to the fund. # [Signed] THEOPHILUS PARSONS. NATHANIEL HOLMES. November 3, 1870. It was voted that the members of the Rumford Committee, together with the President, the Vice-President, and Secretaries of the society, act as a committee to determine the method to be adopted for the distribution of the Academy's edition of the works of Count Rumford, with power to act, and to report at the next stated meeting. The Vice-President stated that it was very desirable that there should be a precise record made of the amount received from the sale of the works of Count Rumford, in view of the doubt concerning the disposition of the profits arising from such sale. It was voted that the cost of publishing the memoir of Pro- fessor Lovering on the Periodicity of the Aurora be paid from the Rumford Fund, subject to the action of the Rumford Com- mittee. The committee appointed to consider the question of the amendment to the constitution concerning the annual assess- ment, reported in favor of the amendment. 302 PROCEEDINGS OF THE AMERICAN ACADEMY It was voted that the amendment be enacted. The following gentlemen were elected members of the Academy : — G. Kirchhoff, of Berlin, to be a Foreign Honorary Member in Class I., Section 3, in place of the late Thomas Graham. Kaulbach, of Munich, to be a Foreign Honorary Member in Class III., Section 4, in place of the late Overbeck. Henry Carey Lea, of Philadelphia, to be an Associate Fellow in Class III., Section 3. Professor E. J. Cutler, of Cambridge, to be a Resident Fel- low in Class III., Section 2. Professor E. J. Young, of Cambridge, to be a Resident Fel- low in Class III., Section 2. Professor C. C. Langdell, of Cambridge, to be a Resident Fellow in Class III., Section 1. Six hundred and twenty-sixth. Meeting. December 13, 1870. — Monthly Meeting. The President in the chair. Professor J. D. Whitney read the first part of a communica- tion on the fossil remains of man found in California. Professor N. S. Shaler called attention to the fact that the circumstances connected with the occurrence of these remains beneath Table' Mountain resembled, in a striking way, those of similar remains found near Le Puy in Haute-Loire, France. Professor J. D. Whitney called attention to the discovery, by Mr. Clarence King, of glaciers in the northern slope of Mt. Shasta. Mr. E. N. Horsford gave an account of the system of hy- draulic mining in California. Six hundred and twenty-seventh Meeting. January 9, 1871. — Monthly Meeting. The President in the chair. The President read a letter from Professor Kirchhoff, of OF ARTS AND SCIENCES: JANUARY 9. 187-1. 803 Berlin, acknowledging his election as Foreign Honorary Member. The President announced the death of Professor E. J. Cutler, Resident Fellow of the Academy. Professor J. D. Whitney continued the reading of his papei on the remains of pre-historic man in California, left unfin- ished at the last meeting. The following communication on the Tides, by Lieutenant Roumiantzoff, was read. In the note "sur la theorie des marges" (Comptes Reyidus, May 16, 1870) I defined the phenomena of tidal vibrations. The view I take on the subject is simply a development of the general idea expressed by Laplace in his Mecanique Celeste. Laplace in fact established that : — a. The phenomena of tides consist in the movements of fluid ; b. The infinitely small motion of particles of water is possible only on the surface of their level ; c. The fluctuation of level on the coast is secondary in respect of oceanic motion. At this time the physical description of the phenomena was very in- sufficient, and the local circumstances on which the tides depended were unknown ; consequently Laplace could not follow out the true prin- ciples of his theory, and arrived in his final results at an assumption of a certain proportionality between the phenomena of tides and the dis- turbing forces. ( Vide Laplace, Mecanique Celeste, Tome V. Chapitre XIII.) At the present time many of the peculiarities of the tides have been s-hown by observers, and the principles which were wanting have been mentioned in the remarkable works on "Tides" by the Astronomer- Royal, Mr. Airy, Dr. Whewell, and others. These investigations have caused the fundamental idea in Laplace's theory to be lost sight of; so that until the present time the phenomena of tidal motion have been examined as the disturbance of the form of waters in the ocean under the influence of attracting bodies. At sea-stations we observe not the form of the free surface of waters surrounding the solid globe, but the result of the small horizontal vibrations of the particles of the ocean waters ; and thus the investigation of the equations of the surfaces of the ocean level does not include the theory of tides. Such an explana- 304 PROCEEDINGS OF THE AMERICAN ACADEMY tion is in visible contradiction with the remarkable theory of " waves," by Mr. Airy, the works of Whewell, and others ; but I will immediately show that it would be highly important to apply the solutions given in these works to the explanation given in my former notice. There I particularly endeavored to explain the origin of tidal currents of great rate, and then I said, in short, that we should have to investigate the propagation of tidal currents in bays. Mr. Whewell, in his numerous works, having acquainted us with the geography of the phenomena, and shown many details, as well as many empirical laws of the tides, avails himself also of the idea of " cotidal lines " in explaining the pecu- liarities of the tides. As is well known, the cotidal lines are curves drawn through the points of simultaneous high waters ; their position on the map is associated with the idea of the propagation of tidal mo- tion. The phenomena of tides in the ocean being fully determined by the theory, it is evidently impossible to draw the cotidal lines across the ocean, in the same way as the question is impossible, — "Whether high or low water will occur at the transit of an attracting body." It would be highly important to make use of the theory of cotidal lines to explain the propagation of tidal currents, in which case the cotidal lines will be the direct expression of the physical law. The cotidal lines connecting the points, at which the greatest velocity of tidal cur- rents is being simultaneously observed, are necessary for the study of tidal phenomena in large bays (as e. g. White Sea and German Ocean). Notwithstanding this, the explanation of the phenomena is still very difficult when they occur in rivers, and where the tide rises gradually ; whereas the superficial currents are very irregular and slack. In these cases, starting from the theory developed by Mr. Airy in his work " Tides and Waves," we arrive at the laws of the phenomena. If, in fact, the pressure of the ocean in its progress meets with great resist- ance in the system of waters in a quiescent state, or running in the opposite direction, then the propagation of this pressure will be observed as taking place in the form of waves (positive). The general description of the phenomena of tides was given by me in the more simple case when the bay is immediately connected with the ocean. The observations of tidal currents made by many eminent American, English, and French observers, and also the full investiga- tion of tidal currents in the White Sea by the Russian hydrographer, Risnecke, have been taken by me as authorities. From the foregoing remarks we can infer how complicated the phenomena will be in many OF ARTS AND SCIENCES : JANUARY 9, 1871. 305 cases ; in each instance of this kind a separate physical description will be indispensable, as the local circumstances are sometimes very different. Tbe most simple case for the investigation of the laws of tidal currents is afforded by observations made on shoals at a great dis- tance from the coast. Thus observations on the shoals of the German oceans, of the Sooloo Sea, and others, do not show the existence of any noticeable rise of level. Let us suppose a shoal in the middle of the ocean, the depth of the ocean to be 20,000 feet, and 20 feet on the shoal, then the velocity of waters on the shoal could not exceed the rate of the ocean motion more than one thousand times. In any case, the velocity of the current on this shoal will not be great, as the ocean motion is too slow ; besides, the velocity of tidal currents increases gradually from nothing, and if the shoal is of small superficial dimen- sions, then the resistance to the progress of tidal motion will be insig- nificant, and observations will not show any rise of level. I will here add an explanation why tides are not strong at the islands of the open ocean, but attain great dimensions in bays and narrows along the coast of the continent. In the former case, the lesser mass of the ocean waters helps to communicate a progressive motion to the particles of water ; whereas, in the latter case, all the mass of the ocean presses on the coast of the continent, and the running waters being reflected from the promontories and straight shore convey their vis viva to the waters of the bays and narrows which indent the shore of the continent. I subjoin the following remarks to the conclusions made by me in the first note : — 1. The Astronomer- Royal, Mr. Airy, in his works on the tides, more than once points to the inadequacy of all the theories of the tides (see e. g. Airy, "Tides and Waves," Section II., No. 14) ; thus in the first conclusion I explain the results given by Mr. Airy. 2. The time and the magnitude of the greatest velocity of tidal currents are opposed by me to the generally admitted rule of investi- gating the laws of times and heights of high water. According to the theory of tidal motion, the velocity of the current may be given by the function of the disturbing forces, whereas the rise of level will be a very complex function of currents, which only can be expressed by an empirical formula, because many of the local circumstances cannot be analytically stated. 3. The law of the revolving direction of tidal currents (from E. round by N. in north lat. and from E. round by S. in south lat.) is VOL. VIII. 39 306 PROCEEDINGS OF THE AMERICAN ACADEMY confirmed by all observations made in points open to the ocean. In contracted estuaries and along the shore the currents follow the shore line. In some points of a complicated and large bay a change in the reverse direction is sometimes observed, as these points are reached by the currents after many reflections from the shore. 4. The relation of the rise of the tide to the velocity of the flow solely depends upon local circumstances. If the shore extends perpen- dicularly to the direction of the flow at its greatest rate, then high water occurs soon after the time of maximum of velocity. In bays stretching considerably inland, when the velocity is small and the rise depends on the mass of water remaining in, the time of high water occurs con- siderably later than the time of greatest velocity of the current from the ocean. This delay becomes an essential element in the theory of tides, for it determines the time and height of high water, and upon it depends the retard of the spring and neap tides after the days of syzygy and quadrature. 5. The first part of the establishment is drawn from the theory ; the second, with the magnitude of the greatest velocity of flow, determines the influence of local circumstances. 6. The absence of full uniformity in the mean level immediately proves that the height of the lunisolar tides is not equal to the alge- braical addition of the lunar and solar tides (one of the evident infer- ences of theory of tidal motion). In fact, Mr. Airy deduced from the observations " that the mean level is higher in the large tides than in the small ones." (" Tides and Waves," p. 374 " The mean level at Sheerness is higher in spring tide than in the neap tide by seven inches nearly." .... And I inferred from this that the lunisolar tide is greater than the addition of solar and lunar tides at Sheerness by about fourteen inches.) This inequality might be con- siderable ; but the various resistances to tidal motion on the coast re- duce the large tides far more than the small tides. Proceeding from the observations made in Ireland, Mr. Airy alluded to the difference of the mean height of the sea round the island. The definition of the normal level on the coast is immediately deduced from my explanation of the phenomena of tides. In some points of a complicated large bay, the level of low water at spring tide may be higher than the ocean level (in case of a constant movement of the waters) ; but the level in the bay during a quiescent state of waters (as observed at low water) will never fall lower than the ocean level. The small motion of the OF ARTS AND SCIENCES: JANUARY 25, 1871. 307 particles of the ocean waters from the shore will be followed by a similarly small fluctuation of the level along the coast. The observations of the rise of the tide give us the result of the effect of all the causes without the possibility of distinguishing the power of each of them separately. In fact, the elevation of the level corresponds to each periodical current from the ocean; thus, to explain some inequalities of the heights of tides, we must consider the causes from which the periodical currents may proceed. For instance, the diurnal inequality of heights is observed in all morning and evening tides, which undergoes a periodical change according to the season of the year. But, on the other hand, the difference between the heating of the waters by the sun along the shore (where the diurnal amplitudes in the temperature are very considerable) and in the ocean will cause the periodical currents. Certain other inequalities in the heights of tides will also proceed from the periodical and accidental variations in the direction and rate of the constant local currents. The power of the wind to drive the waters into the bays increases the height of the level. The anomalies in the phenomena of tides are explained by the interferences of the currents, and by the streams caused by the differ- ence of the level in the nearest points. Six hundred and twenty-eighth Meeting. January 25, 1871. — Stated Meeting. The President in the chair. There being no quorum for the transaction of business, the matters which should have been acted upon at this meeting- were postponed. The President announced the death of Professor William Chauvenet, Associate Fellow of the Academy. Professor N. S. Shaler made a communication on the Geol- ogy of the region about Richmond, Ya. He claimed that the sienite ridge which occurs at that point was of later elevation than the rest of the Appalachian Ridge, which it clearly resem- bled in many important regards ; furthermore, that the salient angle of Cape Hatteras was caused by the elevation of this ridge. Mr. Shaler also claimed that the Cincinnati axis of 308 PROCEEDINGS OP THE AMERICAN ACADEMY elevation was the first of the Appalachian system, having been elevated during the Lower Silurian epoch. Voted to adjourn this meeting to the second Tuesday in February. Six hundred and twenty-ninth Meeting. February 14, 1871. — Adjourned Stated Meeting. The Academy met at the house of Dr. H. W. Williams. The President in the chair. The following gentlemen were elected Fellows of the Acad- emy : — Charles Francis Adams, Jr., of Boston, to be a Resident Fellow in Class III., Section 3. Professor C. C. Everett, of Cambridge, to be a Resident Fellow in Class III., Section 1. William Everett, of Cambridge, to be a Resident Fellow in Class III., Section 2. Henry W. Paine, of Cambridge, to be a Resident Fellow in Class III., Section 1. John G. Whittier, of Amesbury, to be a Resident Fellow in Class III., Section 4. Ferdinand Bocher, of Cambridge, to be a Resident Fellow in Class III., Section 4. George J. Brush, of New Haven, to be an Associate Fellow in Class II., Section 1. Stephen T. Olney, of Providence, to be an Associate Fellow in Class II., Section 2. Jeremiah Smith, of Dover, N. H., to be an Associate Fellow in Class III., Section 1. In accordance with the recommendation of the Rumford Committee, it was voted : — That the cost of printing the memoir of Professor Joseph Lovering, on the Periodicity of the Aurora Borealis, be assessed on the income of the Rumford Fund. Also, that one hundred copies of the quarto edition of the OF ARTS AND SCIENCES: FEBRUARY 14, 1871. 309 Life of Rumford be presented to Dr. George E. Ellis, together with a complete set of the Essays (as edited by the Committee), with the thanks of the Academy. It was voted that the Finance Committee be requested to prepare a statement of the current expenses and receipts of the Academy. It was voted that the meeting adjourn, at its close, to the second Tuesday in March. Professor Pickering made a communication on a new form of solar eyepiece, by which the light may be reduced to any desired extent. In the common diagonal eyepiece all the light is reflected into the eye by the inclined surface of the prism. A second prism is connected to the first by some substance whose index of refraction is very nearly equal to that of the glass. In consequence, an exceedingly small pro- portion of the light is reflected, the greater part passing directly through, out of the telescope. Again, since the angle of incidence equals 45°, the reflected ray is almost totally polarized, and its intensity may be varied at will by a Nicol's prism. Colored glasses are thus avoided, and with them the danger of heating and cracking the lenses of the eyepiece, as almost all the heat and light passes out of the tube. If desired, it may be received on a second eyepiece or spectroscope, so that during an eclipse or transit, for instance, two observers may use the same telescope. A curious coloration of the images is sometimes produced, probably due to the unequal dispersion of the glass and cement. Apart from its practical application, this device has a scien- tific interest as affording a means of producing a plane reflecting sur- face whose index of refraction is very nearly unity. Professor J. D. Whitney read several affidavits of the dis- covery of pre-historic man in Colorado. Professor N. S. Shaler made a communication on the forma- tion of continents. He compared the circular development in the Moon with the linear development in the Earth and Mars. • Professor J. D. "Whitney read letters from Baron Richtofcn on the geology of China and Japan. He also exhibited a new method of illustrating books. 310 PROCEEDINGS OF THE AMERICAN ACADEMY Remarks on this communication were made by the Presi- dent, Mr. T. T. Bouve, and Professor N. S. Shaler. Dr. H. W. Williams showed a new test for astigmatism. Six hundred and thirtieth. Meeting. March 24, 1871. — Adjourned Stated Meeting. The President in the chair. The President presented the report of the Committee on Finance. The Corresponding Secretary read letters from Messrs. Olney, Whittier, Brush, and Kaulbach, accepting membership of the Academy. It was voted to appropriate the additional sum of $ 500, to be expended by the Committee of Publication. It was voted that the annual assessment be raised from five dollars to eight dollars. Professor B. Peirce made a communication on the recent eclipse, in which he called attention to the indebtedness of the English observers to the plans of the Americans, and their omission of a suitable acknowledgment. His own observations were conducted in Sicily, where he divided his party into five sections, of which two had clear weather. All the observations tended to show the solar nature of the corona. Remarks on this communication were made by Professor E. C. Pickering. Six hundred and thirty-first Meeting. April 11, 1871. — Monthly Meeting. The President in the chair. The Corresponding Secretary read a letter from Professor Ferdinand Bocher acknowledging his election into the Acad- emy. Professor J. P. Cooke presented a report of the Rumford Committee on the cost of publication of the Life and Works of Count Rumford. OF ARTS AND SCIENCES: APHIL 11, 1871. 311 Remarks on this report were made by the President, Messrs. Quincy, Lovering, Lyman, J. C. Gray, J. I. Bowditch, and Shaler. A motion to suspend the publication of the second volume of Count Rumford's Works was laid on the table, and the report was referred back to the Rumford Committee. Professor Joseph Winlock exhibited some pictures of the eclipse of 1870, and pointed out the resemblance between the photographs of 1869 and of 1870. He also stated that in his recording spectroscope it is not essential that the registering point should be attached to the telescope, but to the part which is moved for pointing on the lines of the spectrum. In Pro- fessor Young's spectroscope, in which the prisms move, the registering apparatus is attached to thena. Professor F. H. Storer presented the following paper on the amount of carbonic acid in the air, by Mr. A. H. Pearson. The following paper contains an account of a large number of ex- aminations of the air of various places for carbonic acid, made in the chemical laboratory of the Massachusetts Institute of Technology, during the spring of 1870, for the State Board of Health of Massa- chusetts. They were made chiefly for the purpose of obtaining a general idea of the amounts of carbonic acid in the air of school-houses and other public buildings ; but there are also among them quite a number of estimations of carbonic acid in the open air which may be of interest when compared with similar examinations made in other places.* In these experiments the carbonic acid was determined by Petten- kofer's method. This method consists in exposing a certain quantity of standard baryta water to the action of a known volume of air, and thus removing the carbonic acid as carbonate of barium. When the baryta water has been exposed to the air for a sufficient length of time, the baryta remaining in solution is estimated with a« standard solution of oxalic acid. The difference between the amounts of oxalic acid required to neu- * See Dr. R. Angus Smith, in the Scottish Meteorological Journal, January, 1870 ; also the Second Annual Report of the Massachusetts State Board of Health, January, 1871. 312 PKOCEEDINGS OF THE AMERICAN ACADEMY tralize a certain quantity of baryta water, before and after the action of the air, represents the carbonate of barium formed, and from this quantity the carbonic acid present in the air is estimated. The baryta water used in this process was prepared by dissolving 7 grms. of hydrate of baryta in one litre of water. The precise strength of this solution, as determined in the manner described below, was such that 1 c. c. of the solution corresponded to 1,087 mgrm. of C02. This solution was kept in a glass bottle, to the rubber stopper of which was fitted a tube containing soda-lime, and another tube just large enough to allow the passage of a pipette for drawing the baryta water. In order to guard against the action of carbonic acid on the baryta water contained in the pipette from the mouth of the person using it, a tube filled with caustic potash was attached to its larger end. The soda-lime apparatus, noticed above, acted in the same capacity as the potash tube toward the carbonic acid in the air of the room. The solution of oxalic acid was prepared as follows : — A saturated solution of pure oxalic acid in water was made and allowed to crystal- lize. These crystals were dried between folds of blotting-paper, and for one half-hour over concentrated sulphuric acid. 2.8636 grms. were then weighed out, dissolved in water, and the solution diluted to one litre. 1 c. c. of this solution corresponds to 1 mgrm. of C02. The strength of the baryta water was determined as follows : — 25 c. c. of the baryta solution were transferred to a small flask, and the oxalic-acid solution run in from a Mohr's burette, until a drop of the mixture failed to give the alkaline reaction (a brown ring on deli- cate turmeric paper). Repeated trials showed that 23 c. c. of the oxalic-acid solution were required to exactly neutralize 25 c. c. of the baryta water. Three large glass bottles, with tightly fitting glass stoppers, were used for holding the air, in which the carbonic acid was to be deter- mined. The capacity of each was obtained by filling with water and then measuring the same, by means of a flask holding 1,000 c. c. and a cylinder, graduated to single c. c. In this manner the capacity of bottle No. 1. reduced to 0° C, and 760 m. m. bar. press, was found to be 5824.10 c. c, that of No. 2, 6166,11 c. c, and of No. 3, 6240.57 c. c, an allowance of 50 c. c. being made in the calculation for the baryta water used in the process. Previous to each experiment the bottles were thoroughly cleansed and then dried by passing a current of heated air through them. OP ARTS AND SCIENCES: APRIL 11, 1871. olo The details of a complete analysis are as follows : — Having filled the perfectly dry bottle, by means of a pair of bellows, with the air to be analyzed, 50 c. c. of the baryta water are added, and the interior surface of the bottle kept moistened by turning the same for about half an hour. At the end of this time the baryta water is poured into a cylinder, the latter tightly corked, and the carbonate of barium allowed to de- posit, requiring about fifteen minutes. 25 c. c. of the nearly clear liquid are now transferred to a small flask, and the oxalic acid solution run in from a burette, until a single drop of the mixture fails to give the alkaline reaction on turmeric paper. Taking, for example, the first experiment made on the outer air, it was found that 20.4 c. c. of the oxalic acid solution were required to neutralize 25 c. c. of the baryta water after the action of the air. The difference between 20.4 c. c. and 23 c. c, the amount required to neutralize 25 c. c. of baryta water before the action of the air, being multiplied by 2, — for 50 c. c. of baryta water were used in the ex- periment, — we obtain 5.2 c. c, each c. c. of which is equivalent to nearly one mgrm. of carbonic acid, in accordance with the proportion : at.wt. at.wt. wt. of 0 in O CO, 1 c. c. of sol. wt. of C02. 63 : 22 — .0028636 : .0009998 Multiplying this weight of carbonic acid by 5.2 c. c. and reducing the product to volumes in terms of c. c. at the normal temperature and pressure, we obtain 2.637 c. c. of carbonic acid in the volume of air analyzed. Bottle No. 1 having been used, after reducing its volume to the normal temp, and press., we obtain the percentage of carbonic acid by a simple proportion, thus : — 5783.26 : 2.637 = 100 : .04560%. In order to ascertain if the oxalic acid used in these experiments could be depended on for purity, the strength of the baryta water was tested with different solutions of the acid, prepared from crystals which were obtained under various conditions. I. A solution of oxalic acid in hot water was made and allowed to crystallize. These crystals were dried between sheets of blotting-paper, 2.8636 grms. weighed out, dissolved in water, and the solution made up to a litre. 25 c. c. of the baryta water required 23 c. c. of this solution. VOL. VIII. 40 314 PROCEEDINGS OF THE AMERICAN ACADEMY II. A saturated solution of oxalic acid in water was made as above ; the crystals obtained were dried between sheets of paper, and a portion of them allowed to remain for one half an hour over sulphuric acid, and another portion for one hour. Solutions were made of these crys- tals of the same strength as above, and 25 c. c. of baryta water tested with the same results as before. III. A saturated solution of oxalic acid in hot water was allowed to stand until nearly cold. The crystals thus obtained were rejected and the mother-liquor allowed to stand until another crop of crystals had deposited. These crystals were dried between sheets of paper and for one half an hour over sulphuric acid, a solution made of them, and the baryta water tested in the usual manner with a like result. IV. A saturated solution of oxalic acid in cold water was allowed to remain over sulphuric acid, under a bell-glass, until a quantity of crystals was deposited. These were rejected and the mother-liquor returned to the bell-glass, and a second crop of crystals obtained, which were dried, pulverized, and a solution made of them. The baryta water was tested with this solution, the result obtained being the same as above. The conclusion drawn from the above experiments was, that the ox- alic acid employed in the regular analyses did not differ from that used in these experiments, where the conditions under which the solutions were obtained would not admit the presence of impurities in the oxalic acid. The results of these examinations of the air for carbonic acid are as follows : — I. — Outer air in Boston. Locality. Per cent, of Carbon- ic Acid by Volume. Date. 1870. Time. Temper- ature. Centi- grade. Barom- eter. Inches. Remarks. r .04560 Mar. 17 11.00 a.m. "Deg. — 3.5 29.330 Cloudy, wind N.W. .03194 Apr. 1 8.45 " 9 30.372 Clear, wind N. E. .03894 " 1 8.45 " 9 30.372 11 u .03988 " 8 9.40 " 13 30.134 a u Newbury Street, near Institute of Technol- • .04449 .04218 .03798 " 8 " 8 " 13 9.40 " 9.40 " 11.00 " 13 13 14 30.134 30.134 30.000 ii ii it u Clear, wind N. °gy> .04435 " 13 11.00 " 14 30.000 u ii .04230 " 14 2.35 p. m. 25 3(i.ol6 Clear, wind S W. .04292 " 14 2.35 " 25 30.016 ii u .04999 " 28 2.20 " 28 29.872 Cloudy, windS. W. .04903 " 28 2.20 " 28 29.872 u it Park St. near Tremont, .04493 May 3 8.30 " 14 29.936 Clear, wind N. Newbury Street, j .03394 " 12 2.45 " 22 29.852 ( After storm ; light ( clouds, windS. W. .03561 " *12 2.45 " 22 29.852 f .02905 " 17 10.45 a. m. 14 30.170 Cloudy, wind N. E. Public Garden, -j .03563 .02969 " 18" " 19 4.05 p. m. 10.50 A. M. 22 25 30.336 30.244 Clear, wind S. W. 1 .02586 " 30 3.40 p. m. 20 30.264 Clear, wind S. E. Cupola of State House, .03139 " 18 3.15 " 20.5 30.336 Clear, wind S. W. Clarendon Place, near 1 Berkeley Street, j .03371 " 19 1.30 " " 28 30.212 it it OF ARTS AND SCIENCES: APRIL 11, 1871. 315 II. — Rooms at the Massachusetts Institute of Technology. Locality. Percent, of Carbon- ic Acid by Volume. Date. 1870. Time. Taettu?eer"Barom- 2S* Ache's. grade. Remarks. Small" weighing room/' ( Laboratory Inst. Tech., | Drawing-room of second year's class, i Institute Technology, 1 Room 11 after recitation, ( Institute Technology, | .13205 .13041 .08836 .08416 .05693 .05551 .09762 .08929 Mar. 15 " 15 " 16 " 16 " 16 " 16 " 17 " 17 3.00 p. m. 3.00 " 9.40 a. m. 9.40 " 5.00 P. M. 5.00 " 1.15 " 1.15 " Deg. 22 30.190 22 30.190 14 29.760 14 29.760 15 29.760 15 > 29.760 21 i 29.330 21 ! 29.330 Wind N. E. it tt tt a tt it III. — Air of School-Rooms in Boston. Locality. Grammar Schools. Myrtle Street, j Dartmouth Hawkins " Tremont " Waltham " Common " West Springfield " Blossom " North Bennet " Richmond ' ' Anderson " Northampton " Tyler " South " Primary Schools. Appleton Street, Hanover (Station House), 110 Merrimack Street, Poplar " North Bennet " Richmond " Phillips " West Concord " Tyler Newbern Place, Warrenton Street, Suffolk " Cooper Thacher " Sheafe " Snelling Place, Genesee Street, Way Groton Rutland Hudson Common East Chardon Blossom Percent. ofCarbon- Date. ic Acid bv 1870. Volume. .13431 Mar. 24 .13659 " 24 .12912 " 25 .09748 " 29 .14335 " 29 .12111 " 29 .17686 " 30 .10164 " 31 .19037 April 5 .17887 " 6 .17781 " 11 .08570 " 12 .18622 " 18 .12586 " 18 .17598 May 10 .11092 Mar. 25 .14296 " 28 .18187 " 28 I .11173 April 5 .16824 " 6 .08101 " 11 .08971 " 12 .13999 " 18 .11015 " 18 .15541 " 19 .14575 " 19 .10618 " 19 .19927 " 21 .17292 " 21 .18692 " 21 .16056 " 21 .16082 " 22 .12284 " 22 .14507 " 25 .11663 " 25 .13024 May 9 .07732 " 9 .16988 " 10 .09934 " 11 .12708 " 11 Time. 10.25 a. m. 10.30 " 10.30 " 10.20 " 3.00 p.m. 3.30 " 10.05 A. M. 10.25 " 10.30 " 10.15 " 10.10 " 10.10 " 10.10 " 3.as p. m. 10.15 A. M. 3 15 p. M. 10.30 A. M. 11.15 " 11.15 " 10.25 " 10.20 " 10.20 " 10.25 " 3.50 p. M. 11.35 A. M. 11.50 " 3.35 p. m. 9.55 a. m. 10.10 " 3.40 p. m 3.55 " 9.50 a. m. 10.15 " 11.20 " 11.45 " 3.40 P. M 3.55 " 10.05 A. M 10.15 " 10.50 " Temper- ature. Centi- grade. Deg. 23 23 18 21 23 18 18 21 22 18 20 23 22 20 23 20 20 20 20 20 22 22 21.5 19 23 22 22.5 22 23 22.5 19 23 23 20 22 18 18 22.5 22.5 21 Barom- eter. Inches. Remarks. 30.200 30 200 30.430 2!*.linH 29.950 29.950 30.260 31.1.396 29.900 29.920 30.196 29.648 29.982 29.850 30.114 30.460 29.556 29.556 29.900 29.920 30.196 29.648 29.982 29.850 29.796 29.796 29.750 29.888 29.888 29.856 29 856 30.050 30.050 30.092 30.092 29.856 29.856 30.114 30.034 30.034 316 PROCEEDINGS OF THE AMERICAN ACADEMY IV. — Air of Halls, etc., in Boston. Locality. Percent, of Carbon- ic Acid by Volume. Date. 1870. Time. Teniper- ature. Centi- grade. Barom- eter. Inches. Remarks. Deg. Music Hall , Tremont St. , .14045 May 4 4.05 P. m. 25 29.576 Low tenement house, \ known as the " Crystal ) .09530 " 17 2.30 ■" 23 30.242 Palace," Lincoln St., ) * Open air in rear of above, .03976 " 17 2.50 " 15 30.242 Hall ofY. M.C. U.,300 Washington Street, • ) .15239 Apr. 27 9.05 " 26 30.060 Municipal Court Room, 1 Court Street, j .12047 " 23 1.30 ." 23 29.784 Office of Secretary oft State, State House, J .08914 Mar. 22 2.45 " 24 29.892 Printing office, 79 Milk St. , .10183 Apr. 4 3.30 " 20 29.724 Globe Theatre, .14438 " 11 9.00 " 23 29.952 St. Paul's Church, .05929 " 15 11.00 A. M. 21 30.292 Public Library, waiting- \ .13666 .13747 Mar. 19 " 19 2.30 p. m. 3.45 " 20 21.5 30.150 :;u.i.-.(i room , J .19352 Apr. 20 7.50 " 23 29.784 Six hundred and thirty-second Meeting. May 9, 1871. — Monthly Meeting. The President in the chair. The following Annual Report of the Council was read by the Corresponding Secretary. Since the last report of the Council the following gentlemen have been elected members of the Academy: — Charles C. Perkins, of Boston, to be a Resident Fellow in Class III., Section 4. Nathaniel Holmes, of Cambridge, to be a Resident Fellow in Class III., Section 1. Raphael Pumpelly, of Cambridge, to be a Resident Fellow in Class II., Section 1. George Derby, of Boston, to be a Resident Fellow in Class II., Section 3. E. J. Cutler, of Cambridge, to be a Resident Fellow in Class III., Section 2. E. J. Young, of Cambridge, to be a Resident Fellow in Class III., Section 2. C. C. Langdell, of Cambridge, to be a Resident Fellow in Class III., Section 1. OF ARTS AND SCIENCES : MAY 9, 1871. 317 William Everett, of Cambridge, to be a Resident Fellow in Class III., Section 2. Henry W. Paine, of Cambridge, to be a Resident Fellow in Class III., Section 1. Charles Francis Adams, Jr., of Cambridge, to be a Resident Fellow in Class III., Section 3. Ferdinand Bocher, of Cambridge, to be a Resident Fellow in Class III., Section 4. J. G. Whittier, of Amesbury, to be a Resident Fellow in Class III., Section 4. C. C. Everett, of Cambridge, to be a Resident Fellow in Class III., Section 1. Simon Newcomb, of Washington, to be an Associate Fellow in Class I., Section 1. Truman H. Safford, of Chicago, to be an Associate Fellow in Class I., Section 1. Henry J. Clark, of Lexington, Ky., to be an Associate Fellow in Class II., Section 3. Henry Carey Lea, of Philadelphia, to be an Associate Fellow in Class III., Section 3. George J. Brush, of New Haven, to be an Associate Fellow in Class II., Section 1. Stephen T. Olney, of Providence, to be an Associate Fellow in Class II., Section 2. Jeremiah Smith, of Dover, N. H., to be an Associate Fellow in Class III., Section 1. Alexander Braum, of Berlin, to be a Foreign Honorary Member in Class II., Section 2. Charles Merivale, of Oxford, to be a Foreign Honorary Member in Class III., Section 3. G. KirchhofF, of Berlin, to be a Foreign Honorary Member in Class I., Section 3. Kaulbach, of Munich, to be a Foreign Honorary Member in Class III., Section 4. Since the last Annual Meeting the Academy have lost, by death, two Resident Fellows and two Associate Fellows. Elbridge Jefferson Cutler, the son of Elihu and Rebecca T. Cutler, was born at Holliston, Massachusetts, December 28, 1831. He was prepared for college at Westborough, under the tuition of Rev. 318 PROCEEDINGS OF THE AMERICAN ACADEMY T. D. P. Stone, and entered Harvard College in 1849. In college he maintained a high standing, and at the close of his senior year was the class-poet. After graduating, he was engaged as a teacher in various places for ahout five years, for two of which he taught a private school in his native town. In 1858 and 1859, he was one of the editors of " The Century," a weekly literary journal published in New York. On quitting this employment he sailed for Europe, and spent a year in foreign travel and the study of the continental languages and litera- ture. In 1861, he aided in the enlistment of a company for the na- tional service in the great rebellion, engaging in the work with intense zeal, and expending in it almost all that he possessed ; but was pre- vented from active duty by an injury occasioned by lifting a heavy weight in aid of a passing traveller, whose wagon was overturned near his mother's house. The spinal lesion from which he then suffered acutely made him an invalid for the rest of his life. At the Com- mencement of 1861, he read before the Phi Beta Kappa Society of Har- vard College a patriotic poem, which won for him a very high reputation. From 1862 to 1864 he was a teacher in Worcester. He then spent another year in Europe. On his return, in 1865, he was chosen As- sistant Professor of Modern Languages at Harvard College, and was appointed to a full and permanent professorship in 1870. Shortly be- fore this last appointment he was prostrated by a new attack of spinal disease, in which he lingered for many weeks, not without hopeful symptoms of convalescence, till his life was closed by a sudden illness of an erysipelatous type, on the 27th of December, 1870, only a few weeks after his election as Fellow of the Academy. Professor Cutler was endowed with native ability of a high order, and at the same time was, through life, a systematically industrious student and worker. While a good classical scholar, he was especially versed in the French and German languages and literature, and was, at the same time, familiar with the best writers in his own tongue. In- deed, few men of his years have united to a greater degree than he did special and general scholarship ; so that, while a master in his own department, he was no sciolist in any branch of liberal culture. As a writer, he was characterized by clear thought, pure, chaste, and transparent diction, and singleness and earnestness of purpose. The little that he wrote leaves only room for regret that it should have been so little. His poetry manifested a fertile fancy and no mean creative power, joined with great rhythmical euphony ; and when he recited OF ARTS AND SCIENCES : MAY 9, 1871. 319 his own verse, he gave it an intense charm by the sweetness of his tones and the unaffected fervor of his utterance. His preferred work, and that for which he was best adapted by na- ture and education, was that of a teacher. He made learning attrac- tive both by his own example of the amenities and graces that belong to liberal culture, and by that keen appreciation of truth and beauty in thought, style, and expression, which won from his pupils their admira- tion of the literature which he opened to their knowledge. He under- stood, too, the modes of access to minds of various complexions, and was often successful in awakening capacities, tastes, and receptivities, which would have responded to no less skilful touch. He was at the same time the watchful and judicious friend, counsellor, and helper of his pupils, seeking their highest moral well-being, in rebuke faithful, but always kind, persevering and often eminently successful in his labors for the wayward and unpromising. For not a few students of the University, his interposition at a time of temptation or discourage- ment marked the turning-point of their career, and many will have life- long reason to thank him for their established virtue, industry, and well-being. His services as a College teacher were invaluable, and of his associates there probably is not one who did not regard him as occupying a place which may not easily be filled again. His character in all its aspects commanded equal respect and affec- tion. No man has had or deserved warmer friends. His purity, simplicity, integrity, and kindness made him the object of implicit con- fidence to all with whom he was associated, and in the nearer circle of home and socialjntimacy leave the most precious and hallowed mem- ories. The time has come when there must be stricken from the list of ou living members a name which has stood there for more than fifty years.* Of those members of the Academy who have taken small part in its discussions, and whose names do not appear in its memoirs, no one has done more to advance the objects for which the Academy was instituted than George Ticknor. It is fitting, therefore, that we should pause a moment to take notice of his life, and of the great loss which Science, as well as Letters, has suffered by his death. * Mr. Ticknor was chosen into the Academy on November 8, 1820. 320 PROCEEDINGS OF THE AMERICAN ACADEMY Mr. Ticknor, son of Elisha Ticknor, an intelligent and public-spirited man, one of those who first opened the doors of the public schools to all the children of Boston under the age of seven, was born in Boston, August 1, 1791. His father, a classical scholar, had been a teacher, and knew how safely to indulge the extraordinary power of application and attainment of his son, and to kindle within him the fire which always continued to burn, without checking his uncommon vivacity and playfulness, so that he was graduated at Dartmouth College, after a full and successful course, in 1807, at the age at which most boys in those days entered college. Returning to Boston, he pursued his studies for three years under the care of the Rev. Dr. Gardiner, a worthy pupil of Dr. Parr, and was filled with that enthusiastic love of the Greek and Latin classics which he always retained. " His brightness, industry, ardor, and per- severance," says a friend who knew, " combined with agreeable, re- spectful, and gentlemanly manners," made him a favorite with Dr. Gardiner, who procured for his young friend admission to the Anthol- ogy Club, of which he was president, thus placing him amongst much older persons, the best scholars and most distinguished men of letters of their day. He then devoted three years to the study of the law, in the office of William Sullivan, a good lawyer and a true gentleman, and was ad- mitted to the bar in 1813. As it was impossible for him to do anything superficially, he gave promise of distinction in that profession. But, while he could not but retain the fruits of the severe mental discipline which faithful study gives, and gained from it, doubtless, something of the skill and wisdom with which he always managed his own affairs, as well as a safe guide in all his investigations, he preferred literature. He went abroad in April, 1815, with his friend Edward Everett, and, after a few weeks in London, just at the time of the battle of Waterloo, hastened through Holland, stopping chiefly to buy books, to Gottingen, where they lived in contiguous rooms in the house of his favorite teacher, Bouterwek, whose highest work he was destined to surpass. At Gottingen he labored faithfully in his philological studies, from August in that year to March, 1817, during which time he became perfectly familiar with the German language. In Paris, in the summer of 1817, in Rome through the following winter, and in Madrid from May to September, 1818, he studied with equal energy. During his residence on the continent, and in Edin- OF ARTS AND SCIENCES: MAY 9, 1871. 821 burgh and London, he won the respect of such congenial spirits as Goethe and Humboldt, Sir Walter Scott, Francis Jeffrey, Words- worth, Lord Byron, Southey, Lord Holland, and Sir James Mack- intosh. In Paris, he was intimate with Madame de Stael and her family and the Lafayettes, and in Madrid with the foreign diplomatists and some of the best Spanish scholars. In 1820, he returned home and entered upon the duties of the pro- fessorship of French and Spanish Literature, to which he had been appointed in 1817. Mr. Ticknor's lectures, and those of Edward Everett, formed an era in the history of the college ; and from his intimate acquaintance with many of the ripest scholars, and with the highest scientific and literary institutions in the most advanced of the nations of Europe, he was able to present views which now prevail, and arouse a spirit which is now everywhere felt among us. In 1821, he married Anne, daughter of Samuel Eliot, an eminent merchant of Boston. In 1823, Mr. Ticknor published a syllabus of his course of thirty four lectures upon Spanish literature, in the introduction to which he expresses the hope so satisfactorily fulfilled, that he should, " by the labors of future years, supply the deficiencies on a subject so new, so important, and so interesting." In 1825, Mr. Ticknor published " Remarks on the changes lately proposed or adopted in Harvard University," which, if they could all have been speedily adopted, would probably have rendered unnecessary several of the institutions which have since gone into operation in Bos- ton and its neighborhood. In the same year Mr. Ticknor, to gratify a friend, caused to be reprinted in a little volume, with additions, from the pages of the North American Review, " Outlines of the Principal Events in the Life of General Lafayette," which Edward Everett calls " Mr. Ticknor's beautiful sketch of the life of Lafayette." A French translation of this, was, in the same year, printed in Paris. In 1827, he wrote a memoir to accompany ihe remains of R. A. Haven, of which an excellent judge says, "It is such a portrait as his friends delight to recognize, such as all wish to resemble, and yet such as his worst enemy could not help allowing to be just." In 1832 he delivered, before the American Institute of Instruction, a lecture on the " Best Methods of Teaching the Living Languages," VOL. VIII. 41 322 PROCEEDINGS OF THE AMERICAN ACADEMY which he draws from his own observation and experience in the best schools in Europe. This is most valuable, as it offers guidance in teaching ancient as well as modern languages from one thoroughly ac- quainted with all the best methods. Mr. Ticknor resigned his professorship in 1835, after fifteen years of uninterrupted service, during which time and for the remainder of his life he exercised a generous but modest hospitality. Fortunate and happy in his domestic relations, he gave a cordial welcome not only to his old friends, whom he never forgot, such as Dr. Bigelow, James Savage, William H. Prescott, not only to distinguished men of letters, like Professor Felton and Mr. Hillard, and the Danas, but to men of science, like Bowditch, Lyell, Agassiz, and the brothers Rogers, and to worthy citizens and men of distmction in other walks of life, such as Judge Story and Daniel Webster, thus doing what can best be done to awaken sympathy and mutual respect between those engaged in sci- ences, letters, business, and the affairs of state. After a residence in Europe of three years, understood to have been principally occupied in collecting materials of every kind for his " His- tory of Spanish Literature," he returned home, and, in 1849, that work appeared, which Humboldt calls " a masterly work," and of which H. T. Buckle says, " In it there is more real information than can be found in any of the many Spanish histories I have had occasion to read." This noble work stands alone ; most agreeable, instructive, and entertaining, though upon a subject which, treated with less knowl- edge, taste, and discrimination, has usually been found heavy and tedious. In 1863, Mr. Ticknor gave us the life of his dearest, life-long friend, William Hickling Prescott, — who, younger than himself, had once ex- pressed the hope that it " might be long before he should do the good turn for his friend Ticknor of writing his obituary." There is not, perhaps, in any language, a biography more delightful, or containing more precious, suggestive instruction for a young student, than Tick- nor's " Life of Prescott." If untoward circumstances had not prevented the execution of his own cherished purpose, we should now have, as a pendant to the Life of Prescott, a life, by the same hand, of Daniel Webster. Of his ability to do it in an incomparably perfect manner, we have not only the evidence of the Life of Prescott, but we have his " Remarks on the Life and Writings of Daniel Webster," which came out in a OF ARTS AND SCIENCES: MAY 9, 1871. 323 pamphlet in 1831, taken, with additions, from the American Quarterly Review. This is a rapid hut beautiful sketch of the life of the great statesman by a kindred spirit who justly and feelingly appreciates all that is great and admirable in his character. Besides these larger works, Mr. Ticknor furnished valuable commu- nications in every part of his life to the Anthology, the North American Review, the Christian Examiner, and other Reviews, upon subjects of interest to scholars and men of science. He could never be idle ; and very much of his time, in the last years of his life, was given to the Boston City Library. No one could be better qualified for this labor than Mr. Ticknor was, by acquaintance with the best books on all subjects, and by the experience he had had in forming his own unsurpassed library, of which the portion relating to Spanish literature was the most complete collection known. This, with thousands of other volumes, he gave or he bequeathed to the City Library. These precious gifts will be gratefully enjoyed by many generations of American scholars, who can only know Mr. Ticknor by his writings, and can look upon him only in the exquisite bust by Milmore, which adorns the Upper Hall of the Library. Mr. Ticknor died, in the eightieth year of his age, on the morning of the 26th of January, 1871. The one best fitted to know and to judge of his virtues as well as his accomplishments has given him the simple but all-sufficient title of the Christian Scholar. The Hon. John Pendleton Kennedy was born in Baltimore on the 25th of October, 1795, and was graduated at Baltimore College in the seventeenth year of his age. After a brief service in the field, as a volunteer, during our last war with England, he entered on the practice of the Law, and gave the best promise of becoming a con- spicuous member of the Maryland bar. But literature and politics soon diverted him from professional pursuits, and he will be remem- bered mainly as an author and a statesman. His principal produc- tions in literature were " Swallow Barn, or a Sojourn in the Old Do- minion,'-' published in 1832 ; «' Horse Shoe Robinson, a Tale of the Tory Ascendancy," published in 1835; and "The Life of William Wirt," in two volumes, published in 1849. In political life, he served successively as a member for many years of the House of Delegates i " Maryland, of which he was more than once the Speaker ; as a 324 PROCEEDINGS OF THE AMERICAN ACADEMY Representative in Congress ; and, finally, as Secretary of the Navy of the United States, in the Cabinet of President Fillmore. In the later years of his life he was Provost of "the University of Maryland, and President of the Peabody Institute, founded by his friend, the late illustrious George Peabody, in the city of Baltimore. To every sta- tion which he occupied Mr. Kennedy brought brilliant accomplish- ments, an active and earnest mind, a quick wit, a ready pen, an eloquent voice, and great devotedness of purpose. No man of our day has left a more enviable memory for the fidelity of his public labors, or the purity of his private life. He died at Newport, Rhode Island, on the 18th of August, 1870, universally respected and lamented. William Chauvenet was born in 1820, at Milford, Pennsylvania; but his early life was chiefly passed in Philadelphia, whither his pa- rents removed while he was still very young. His father was a grocer, and wished his son to succeed him in his business ; but he gave so decided evidence of mathematical talent, while at school, that he was sent to Yale College, where he was graduated with distinction in 1840. After a short service under Professor Bache, in meteorological obser- vations at Girard College Observatory, he became, in 1841, instructor in Mathematics at the United States Naval Asylum in Philadelphia ; and, on the foundation of the United States Naval Academy at An- napolis in 1845, he was appointed one of its Directors, and was also made Professor of Astronomy and Mathematics, and Director of the Observatory. His connection with this Academy continued fourteen years, during which his growing eminence as a mathematician, and his ability and zeal as a teacher, contributed very strongly to give a high character to the institution. In 1859, he was offered the professorship of Astronomy and Mathematics at Washington University, St. Louis, and also that of Natural Philosophy and Astronomy at Yale College, which had previously sought him for her chair of Mathematics. Though strongly attached to his alma mater, he chose St. Louis, in the belief that it presented a wider opportunity of usefulness, and entered on his new duties in the autumn of the same year. In 1862rhe was appointed Chancellor of the University, — an indication of the com- manding impression he had already made there in other ways than in the line of his special studies. But, unfortunately for the University, and deeply to the disappointment of all friends of higher education and OF ARTS AND SCIENCES: MAY 9, 1871. 325 students of mathematical science in America, Dr. Chauvenet's health became seriously impaired shortly after his appointment to his new office, and it was never afterward re- established. After several periods of partial recovery, he resigned the chancellorship in 1869, and he died on the 13th December, 1870. Dr. Chauvenet was the author of > II. III. IV. V. VI. VII. VIII. IX. X. XI. XII. XIII. XIV. 1793. 1794. Dec. 21 1795. 1796. 1797. 1798. 1799. 1800. Dec. 22 1801. 1802. 1803. 1804. 1805. 1 Dec. 21 Dec. 22 Dec. 21 Dec. 21 Dec. 21 Dec. 22 Dec. 22 Dec. 22 Dec. 23 Dec. 22 Dec. 22 2 22 22 23 22 22 22 23 23 23 23 24 23 23 3 23 23 24 23 23 23 24 24 24 24 25 24 24 4 24 24 25 24 24 24 25 25 25 25 26 25 25 5 25 25 26 25 25 25 26 26 26 26 27 26 26 6 26 26 27 26 26 26 27 27 27 27 28 27 27 7 27 27 28 27 27 27 28 28 28 28 29 28 28 8 28 28 29 28 28 28 29 29 29 29 30 29 29 9 29 29 30 29 29 29 30 30 30 30 31 30 30 10 30 30 31 30 30 30 31 31 31 31 1804. Jan. 1 31 31 11 31 31 1796. Jan. 1 31 31 31 1800. Jan. 1 1801. Jan. 1 1802. Jan. 1 1803. Jan. 1 2 1805. Jan. 1 12 1791. Jan. 1 1795. Jan. 1 2 1797. Jan. 1 1798. Jan. 1 1799. Jan. 1 2 2 2 2 3 2 13 2 2 3 2 2 2 3 3 3 3 4 3 14 3 3 4 3 3 3 4 4 4 4 5 4 15 4 4 5 4 4 4 5 5 5 5 6 5 16 5 5 6 5 5 5 6 6 6 6 7 6 17 6 6 7 6 6 6 7 7 7 7 8 7 18 7 7 8 7 7 7 8 8 8 8 9 8 19 8 8 9 8 8 8 9 9 9 9 10 9 20 9 9 10 9 9 9 10 10 10 10 11 10 21 10 10 11 10 10 10 11 11 11 11 12 11 22 11 11 12 11 11 11 12 12 12 12 13 12 23 12 12 13 12 12 12 13 13 13 13 14 13 24 13 13 14 13 13 13 14 14 14 14 15 14 25 14 14 15 14 14 14 15 15 15 15 16 15 26 15 15 16 15 15 15 16 16 16 16 17 16 27 16 16 17 16 16 16 17 17 17 17 18 17 28 17 17 18 17 17 17 18 18 18 18 19 18 29 18 18 19 18 18 18 19 19 19 19 20 19 30 19 19 20 19 19 19 20 20 20 20 21 20 356 PROCEEDINGS OF THE AMERICAN ACADEMY Pluviose, or Rain-Month. fe> II. III. IV. V. VI. VII. VIII. IX. X. XI. XII. XIII. CO p 1794. 1795. 1796. 1797. 1798. 1799. 1800. 1801. 1802. Jan. 1803. 1804. Jan. 1805. Jan. Jan. Jan. Jan. Jan. Jan. Jan. Jan. Jan. Jan. 1 20 20 21 20 20 20 21 21 21 21 22 21 2 21 21 22 21 21 21 22 22 22 22 23 22 3 22 22 23 22 22 22 23 23 23 23 24 23 4 23 23 24 23 23 23 24 24 24 24 25 24 5 24 24 25 24 24 24 25 25 25 25 26 25 6 25 25 26 25 25 25 26 26 26 26 27 26 7 26 26 27 26 26 26 27 27 27 27 28 27 8 27 27 28 27 27 27 28 28 28 28 29 28 9 28 28 29 28 28 28 29 29 29 29 30 29 10 29 29 30 29 29 29 30 30 30 30 31 Feb. 30 11 30 30 31 Feb. 30 30 30 31 Feb. 31 Feb. 31 Feb. 31 Feb. 1 31 Feb. 12 31 Feb. 31 Feb. 1 31 Feb. 31 Feb. 31 Feb. 1 1 1 1 2 1 13 1 1 2 1 1 1 2 2 2 2 3 2 14 2 2 3 2 2 2 3 3 3 3 4 3 15 3 3 4 Q O 3 3 4 4 4 4 5 4 1G 4 4 5 4 4 4 5 5 5 5 6 5 17 5 5 6 5 5 5 6 6 6 6 7 6 18 6 6 7 6 6 6 7 7 7 7 8 7 19 7 7 8 7 7 7 8 8 8 8 9 8 20 8 8 9 8 8 8 9 9 9 9 10 9 21 9 9 10 9 9 9 10 10 10 10 11 10 22 10 10 11 10 10 10 11 11 11 11 12 11 23 11 11 12 11 11 11 12 12 12 12 13 12 24 12 12 13 12 12 12 13 13 13 13 14 13 25 13 13 14 13 13 13 14 14 14 14 15 14 26 14 14 15 14 14 14 15 15 15 15 16 15 27 15 15 16 15 15 15 16 16 16 16 17 16 28 16 16 17 16 16 16 17 17 17 17 18 17 29 17 17 18 17 17 17 18 18 18 18 19 18 30 18 18 19 18 18 18 19 19 19 19 20 19 OF ARTS AND SCIENCES: JANUARY 31, 1872. 357 Ventose, or Wind- Month. p 1 II. III. IV. V. VI. VII. VIII. IX. X. XI. XII. XIII. 1794. Feb. 19 1795. 1796. 1797. 1798. 1799. 1800. Feb. 20 1801. Feb. 20 1802. Feb. 20 1803. Feb. 20 1804. 1805. Feb. 19 Feb. 20 Feb. 19 Feb. 19 Feb. 19 Feb. 21 Feb. 20 2 20 20 21 20 20 20 21 21 21 21 22 21 3 21 21 22 21 21 21 22 22 22 22 23 22 4 22 22 23 22 22 22 23 23 23 23 24 23 5 23 23 24 23 23 23 24 24 24 24 25 24 6 24 24 25 24 24 24 25 25 25 25 26 25 7 25 25 26 25 25 25 26 26 26 26 27 26 8 26 26 27 26 26 26 27 27 27 27 28 27 9 27 27 28 27 27 27 28 28 28 28 29 28 10 28 28 29 28 28 28 Mar. 1 Mar. 1 Mar. 1 Mar. 1 Mar. 1 Mar. 1 11 Mar. 1 Mar. 1 • Mar. 1 Mar. 1 Mar. 1 Mar. 1 2 2 2 2 2 2 12 2 2 2 2 2 2 3 3 3 3 3 3 13 3 3 3 3 3 3 4 4 4 4 4 4 14 4 4 4 4 4 4 5 5 5 5 5 5 15 5 5 5 5 5 5 6 6 6 6 6 6 1G 6 6 6 6 6 6 7 7 7 7 7 7 17 7 7 7 7 7 7 8 8 8 8 8 8 18 8 8 8 8 8 8 9 9 9 9 9 9 19 9 9 9 9 9 9 10 10 10 10 10 10 20 10 10 10 10 10 10 11 11 11 11 11 11 21 11 11 11 11 11 11 12 12 12 12 12 12 22 12 12 12 12 12 12 13 13 13 13 13 13 23 13 13 13 13 13 13 14 14 14 14 14 14 24 14 14 14 14 14 14 15 15 15 15 15 15 25 15 15 15 15 15 15 16 16 16 16 16 16 26 16 16 16 16 16 16 17 17 17 17 17 17 27 17 17 17 17 17 17 18 18 18 18 18 18 28 18 18 18 18 18 18 19 19 19 19 19 19 29 19 19 19 19 19 19 20 20 20 20 20 20 30 20 20 20 20 20 20 21 21 21 21 21 21 358 PROCEEDINGS OF THE AMERICAN ACADEMY Germinal, or Bud-Month. n 1 II. 1794. Mar. 21 III. IV. 1796. V. 1797. VI. VII. VIII. IX. 1801. Mar. 22 X XI. XII. XIII. 1795. Mar. 21 1798. 1799. Mar. 21 1800. 1802. 1803. Mar. 22 1804. 1805. Mar. 21 Mar. 21 Mar. 21 Mar. 22 Mar. 22 Mar. 22 Mar. 22 2 22 22 22 22 22 22 23 23 23 23 23 23 3 23 23 23 23 23 23 24 24 24 24 24 24 4 24 24 24 24 24 24 25 25 25 25 25 25 5 25 25 25 25 25 25 26 26 26 26 26 26 6 26 26 26 26 26 26 27 27 27 27 27 27 7 27 27 27 27 27 27 28 28 28 28 28 28 8 28 28 28 28 28 28 29 29 29 29 29 29 9 29 29 29 29 29 29 30 30 30 30 30 30 10 30 30 30 30 30 30 31 31 31 31 31 31 11 31 31 31 31 31 31 April. 1 April. 1 April. 1 April. 1 April. 1 April. 1 12 April. 1 April. 1 April. 1 April. 1 April. 1 April. 1 2 2 2 2 2 2 13 2 2 2 2 2 2 3 3 3 3 o 3 14 3 3 3 3 3 3 4 4 4 4 4 4 15 4 4 4 4 4 4 5 5 5 5 5 5 16 5 5 5 5 5 5 6 6 6 6 6 6 17 6 6 6 6 6 6 7 7 7 7 7 7 18 7 7 7 7 7 7 8 8 8 8 8 8 19 8 8 8 8 8 8 9 9 9 9 9 ' 9 20 9 9 9 9 9 9 10 10 10 10 10 10 21 10 10 10 10 10 10 11 11 11 11 11 11 22 11 11 11 11 11 11 12 12 12 12 12 12 23 12 12 12 12 12 12 13 13 13 13 13 13 24 13 13 13 13 13 13 14 14 14 14 14 14 25 14 14 14 14 14 14 15 15 15 15 15 15 26 15 15 15 15 15 15 16 16 16 16 16 16 27 16 16 16 16 16 16 17 17 17 17 17 17 28 17 17 17 17 17 17 18 18 18 18 18 18 29 18 18 18 18 18 18 19 19 19 19 19 19 30 19 19 19 19 19 19 20 20 20 20 20 20 OF ARTS AND SCIENCES: JANUARY 31, 1872. 359 Flore al, or Flower-Month. p II. 1794. III. IV. V. VI. VII. VIII. IX. X. XL XII. XIII. 1795. 1796. 1797. 1798. 1799. April. 20 1800. 1801. 1802. 1803. 1804. 1805. 1 April. 20 April. 20 April. 20 April. 20 April. 20 April. 21 April. 21 April. 21 April. 21 April. 21 April. 21 2 21 21 21 21 21 21 22 22 22 22 22 22 3 22 22 22 22 22 22 23 23 23 23 23 23 4 23 23 23 23 23 23 24 24 24 24 24 24 5 24 24 24 24 24 24 25 25 25 25 25 25 6 25 25 25 25 25 25 26 26 26 26 26 26 7 26 26 26 26 26 26 27 27 27 27 27 27 8 27 27 27 27 27 27 28 28 28 28 28 28 9 28 28 28 28 28 28 29 29 29 29 29 29 10 29 29 29 29 29 29 30 30 30 30 30 30 11 30 30 30 30 30 30 May. 1 May. 1 May. 1 May. 1 May. 1 May. 1 12 May. 1 May. 1 May. 1 May. 1 May. 1 May. 1 2 2 2 2 2 2 13 2 2 2 2 2 2 3 3 3 3 3 3 14 3 3 3 3 3 3 4 4 4 4 4 4 15 4 4 4 4 4 4 5 5 5 5 5 5 16 5 5 5 5 5 0 6 6 6 6 6 6 17 6 6 6 6 6 6 7 7 7 7 7 7 18 7 7 7 7 7 7 8 8 8 8 8 8 19 8 8 8 8 8 8 9 9 9 9 9 9 20 9 9 9 9 9 9 10 10 10 10 10 10 21 10 10 10 10 10 10 11 11 11 11 11 11 22 11 11 11 11 11 11 12 12 12 12 12 12 23 12 12 12 12 12 12 13 13 13 13 13 13 24 13 13 13 13 13 13 14 14 14 14 14 14 25 14 14 14 14 14 14 15 15 15 15 15 15 26 15 15 15 15 15 15 16 16 16 16 16 16 27 16 16 16 16 16 16 17 17 17 17 17 17 28 17 17 17 17 17 17 18 18 18 18 18 18 29 18 18 18 18 18 18 19 19 19 19 19 19 30 19 19 19 19 19 19 20 20 20 20 20 20 360 PROCEEDINGS OF THE AMERICAN ACADEMY Pr atrial, or Pasture-Month. Sf p II. III. IV. 1796. V. VI. VII. VIII. IX. X. XL XII. XIII. 1794. May. 1795. 1797. 1798. 1799. 1800. May. 1801. 1802. 1803. 1804. 1805. May. May. May. May. May. May. May. May. May. May. 1 20 20 20 20 20 20 21 21 21 21 21 21 2 21 21 21 21 21 21 22 22 22 22 22 22 3 22 22 22 22 22 22 23 23 23 23 23 23 4 23 23 23 23 23 23 24 24 24 24 24 24 5 24 24 24 24 24 24 25 25 25 25 25 25 6 25 25 25 25 25 25 26 26 26 26 26 26 7 26 26 26 26 26 26 27 27 27 27 27 27 8 27 27 27 27 27 27 28 28 28 28 28 28 9 28 28 28 28 28 28 29 29 29 29 29 29 10 29 29 29 29 29 29 30 30 30 30 30 30 11 30 30 30 30 30 30 31 June. 31 June. 31 June. 31 June. 31 June. 31 June. 12 31 June. 31 June. 31 June. 31 June. 31 June. 31 June. 1 1 1 1 1 1 13 1 1 1 1 1 1 2 2 2 2 2 2 14 2 2 2 2 2 2 3 3 3 3 3 3 15 ■3 3 3 3 3 3 4 4 4 4 4 4 16 4 4 4 4 4 4 5 5 5 5 5 5 17 5 5 5 5 5 5 6 6 6 6 6 6 18 6 6 6 6 6 6 7 7 7 7 7 7 19 7 7 7 7 7 7 8 8 8 8 8 8 20 8 8 8 8 8 8 9 9 9 9 9 9 21 9 9 9 9 9 9 10 10 10 10 10 10 22 10 10 10 10 10 10 11 11 11 11 11 11 23 11 11 11 11 11 11 12 12 12 12 12 12 24 12 12 12 12 12 12 13 13 13 13 13 13 25 13 13 13 13 13 13 14 14 14 14 14 14 26 14 14 14 14 14 14 15 15 15 15 15 15 27 15 15 15 15 15 15 16 16 16 16 16 16 28 16 16 16 16 16 16 17 17 17 17 17 17 29 17 17 17 17 17 17 18 18 18 18 18 18 30 18 18 18 18 18 18 19 19 19 19 19 19 OF ARTS AND SCIENCES .* JANUARY 31, 1872. 361 Messidor, or Harvest-Month. ft 1 II. III. IV. V. VI. 1798. VII. 1799. VIII. IX. X. XL XII. XIII. 1794. 1795. 1796. 1797. 1800. 1801. June. 20 1802. 1803. 1804. 1805. June. 19 June. 19 June. 19 June. 19 June. 19 June. 19 June. 20 June. 20 June. 20 June. 20 June. 20 2 20 20 20 20 20 20 21 21 21 21 21 21 3 21 21 21 21 21 21 22 22 22 22 22 22 4 22 22 22 22 22 22 23 23 23 23 23 23 5 23 23 23 23 23 23 24 24 24 24 24 24 6 24 24 24 24 24 24 25 25 25 25 25 25 7 25 25 25 25 25 25 26 26 26 26 26 26 8 26 26 26 26 26 26 27 27 27 27 27 27 9 27 27 27 27 27 27 28 28 28 28 28 28 10 28 28 28 28 28 28 29 29 29 29 29 29 11 29 29 29 29 29 29 30 30 30 30 30 30 12 30 30 30 30 30 30 July. 1 July. 1 July. 1 July. 1 July. 1 July. 1 13 July. 1 July. 1 July. 1 July. 1 July. 1 July. 1 2 2 2 2 2 2 14 2 2 2 2 2 2 3 3 3 3 3 3 15 3 3 3 3 3 3 4 4 4 4 4 4 16 4 4 4 4 4 4 5 5 5 5 5 5 17 5 5 5 5 5 5 6 6 6 6 6 6 18 6 6 6 6 6 6 7 7 7 7 7 7 19 7 7 7 7 7 7 8 8 8 8 8 8 20 8 8 8 8 8 8 9 9 9 9 9 9 21 9 9 9 9 9 9 10 10 10 10 10 10 22 10 10 10 10 10 10 11 11 11 11 11 11 23 11 11 11 11 11 11 12 12 12 12 12 12 24 12 12 12 12 12 12 13 13 13 13 13 13 25 13 13 13 13 13 13 14 14 14 14 14 14 26 14 14 14 14 14 14 15 15 15 15 15 15 27 15 15 15 15 15 15 16 16 16 16 16 16 28 10 16 16 16 16 16 17 17 17 17 17 17 29 17 17 17 17 17 17 18 18 18 18 18 18 30 18 18 18 18 18 18 19 19 19 19 19 19 VOL. VIII. 46 362 PROCEEDINGS OF THE AMERICAN ACADEMY Thermidor, or Heat-Month. II. III. IV. V. VI. VII. VIII. IX. X. XI. XII. XIII. 1794. 1795. 1796. 1797. 1798. 1799. 1800. 1801. 1802. 1803. 1804. 1805. l July. 19 July. 19 July. 19 July. 19 July. 19 July. 19 July. 20 July. 20 July. 20 July. 20 July. 20 July. 20 2 20 20 20 20 20 20 21 21 21 21 21 21 3 21 21 21 21 21 21 22 22 22 22 22 22 4 22 22 22 22 22 22 23 23 23 23 23 23 5 23 23 23 23 23 23 24 24 24 24 24 24 6 24 24 24 24 24 24 25 25 25 25 25 25 7 25 25 25 25 25 25 26 26 26 26 26 26 8 26 26 26 26 26 26 27 27 27 27 27 27 9 '27 27 27 27 27 27 28 28 28 28 28 28 10 28 28 28 28 28 28 29 29 29 29 29 29 11 29 29 29 29 29 29 30 30 30 30 30 30 12 30 30 30 30 30 30 31 31 31 31 31 31 13 31 31 31 31 31 31 Aug. 1 Aug. 1 Aug. 1 Aug. 1 Aug. 1 Aug. 1 14 Aug. 1 Aug. 1 Aug. 1 Aug. 1 Aug. 1 Aug. 1 2 2 2 2 2 2 15 2 2 2 2 2 2 3 3 3 3 3 3 16 3 3 3 3 3 o O 4 4 4 4 4 4 17 4 4 4 4 4 4 5 5 5 5 5 5 18 5 5 5 5 5 5 6 6 6 6 6 6 19 6 6 6 6 6 6 7 7 7 7 7 7 20 7 7 7 7 7 7 8 8 8 8 8 8 21 8 8 8 8 8 8 9 9 9 9 9 9 22 9 9 9 9 9 9 10 10 10 10 10 10 23 10 10 10 10 10 10 11 11 11 11 11 11 24 11 11 11 11 11 11 12 12 12 12 12 12 25 12 12 12 12 12 12 13 13 13 13 13 13 26 13 13 13 13 13 13 14 14 14 14 14 14 27 14 14 14 14 14 14 15 15 15 15 15 15 28 15 15 15 15 15 15 16 16 16 16 16 16 29 16 16 16 16 16 16 17 17 17 17 17 17 30 17 17 17 17 17 17 18 18 18 18 18 18 OF ARTS AND SCIENCES : JANUARY 31, 1872. 363 Fructidor, or Fruit-Month. p II. III. IV. 1796. V. VI. 1798. VII. VIII IX. X. XI. XII. XIII. 1794. 1795. 1797. 1799 1800 1801. 1802. 1803. 1804 1805. Aug. 19 1 Aug. 18 Aug. 18 Aug. 18 Aug. 18 Aug. 18 Aug. 18 Aug. 19 Aug. 19 Aug. 19 Aug. 19 Aug. 19 2 19 19 19 19 19 19 20 20 20 20 20 20 3 20 20 20 20 20 20 21 21 21 21 21 21 4 21 21 21 21 21 21 22 22 22 22 22 22 5 22 22 22 22 22 22 23 23 23 23 23 23 6 23 23 23 23 23 23 24 24 24 24 24 24 7 24 24 24 24 24 24 25 25 25 25 25 25 8 25 25 25 25 25 25 26 26 26 26 26 26 9 26 26 26 26 26 26 27 27 27 27 27 27 10 27 27 27 27 27 27 28 28 28 28 28 28 11 28 28 28 28 28 28 29 29 29 29 29 29 12 29 29 29 29 29 29 30 30 30 30 .30 30 13 30 30 30 30 30 30 31 31 31 31 31 31 14 31 31 31 31 31 31 Sept. 1 Sept. 1 Sept. 1 Sept. 1 Sept. 1 Sept. 1 15 Sept. 1 Sept. 1 Sept. 1 Sept. 1 Sept. 1 Sept. 1 2 2 2 2 2 2 16 2 2 2 2 2 2 3 3 3 3 3 3 17 3 3 3 3 3 3 4 4 4 4 4 4 18 4 4 4 4 4 4 5 5 5 5 5 5 19 5 5 5 5 5 5 6 6 6 6 6 6 20 6 6 6 6 6 6 7 7 7 7 7 7 21 7 7 7 7 7 7 8 8 8 8 8 8 22 8 8 8 8 8 8 9 9 9 9 9 9 23 9 9 9 9 9 9 10 10 10 10 10 10 24 10 10 10 10 10 10 11 11 11 11 11 11 25 11 11 11 11 11 11 12 12 12 12 12 12 26 12 12 12 12 12 12 13 13 13 13 13 13 27 13 13 13 13 13 13 14 14 14 14 14 14 28 14 14 14 14 14 14 15 15 15 15 15 15 29 15 15 15 15 15 15 16 16 16 16 16 16 30 16 16 16 .16 16 16 17 17 17 17 17 17 364 PROCEEDINGS OF THE AMERICAN ACADEMY Complementary Days. £ II. III. IV. V. VI. VII. VIII. IX. X. XI. XII. XIII. p 1794. 1795. 1796. 1797. 1798. 1799. Sept. 1800. 1801. 1802. 1803. 1804. 1805. Sept. Sept. Sept. Sept. Sept. Sept. Sept. Sept. Sept. Sept. Sept. ]# 17 17 17 17 17 17 18 18 18 18 18 18 2 18 18 18 18 18 18 19 19 19 19 19 19 3 19 19 19 19 19 19 20 20 20 20 20 20 4 20 20 20 20 20 20 21 21 21 21 21 21 5 21 21 21 21 21 21 22 22 22 22 22 22 6 22 22 23 * Complementary days, or Sansculottides, called Primidi, Duodi, Tridi, Quartidi, Quintidi, and Sextidi. These days were not considered as belonging to any month. The sonorous names given to the months by the innovators have been freely trans- lated thus : — Wheezy, Slippy, Showery, Hoppy, Sneezy, Drippy, Flowery, Croppy, Breezy. Nippy. Bowery. Poppy. Chambers's Descriptive Astronomy, p. 443. Six hundred and forty-first Meeting. February 13, 1872. — Adjourned Stated Meeting. The President in the chair. Professor John Trowbridge remarked : — While experimenting upon the electromotive action of fluids separ- ated by membranes, I was led to reflect upon the surface action ob- served by Tomlinson, and to examine it from an electrical point of view. I made use of a bath of sulphate of zinc in which were placed the amalgamated zinc terminals of a galvanometer. On dropping liquids upon the surface of this bath electrical currents were produced, but they were not due to surface action ; for, on using a drop of colored liquid, the deflection of the galvanometer was observed before the liquid reached the terminals. This was also proved by coating the plates of the terminals with parafine, with the exception of a narrow strip two inches below the surface of the bath. OF ARTS AND SCIENCES: FEBRUARY 13, 1872. 365 The President communicated the following : — Botanical Contributions by Asa Gray. 1. Notes on Labiatce. At the close of a preceding article (see vol. 8, pp. 294-296) two new genera of Labiatag were described. I now offer additional notes upon one of these genera, and upon some other plants of the order, beinc: such of the results of a recent revision of the North American species as seem worth while to be now recorded. Poliomintha, Gray, in Proc. Am. Acad. 8, p. 295. — The two species on which the genus was founded, P. incana and P. longijlora, have corolla intus piloso-annulata ; calycis dentes erecti. A second section has to be added : viz. § 2. Corolla exannulata : calycis dentes nunc patentes. Keitkice affinius sed staminum superiorum filamenta sterilia conspicuoe. P. marifolia. Keithia marifolia Schauer, Linmea, 20, p. 705. If Coulter's no. 1080 be rightly here referred, the species is well marked by its roundish-ovate leaves with diverging veins, and its erect calyx-teeth one third to one fourth the length of the tube ; rudi- mentary filaments filiform. The calyx is obscurely bilabiate. P. mollis. Tomentoso-incana, basi tantum lignescente ; foliis ova- tis ovalibusque 3 - 5-plinerviis basi in petiolum brevem angustatis ; calycis dentibus subina?qualibus tubo angusto 13-nervi quadruplo bre- vioribus inosqualiter patentibus ; corolla calycem duplo superantibus ; rudimentis staminum superiorum brevibus subulatis. Hedeoma mollis Torr. Mex. Bound, p. 129 (char, vix bona). — S. W. Texas; cliffs on the Rio Grande near Puerte de Paysano, Dr. Bigelow. Cunila Mariana L. The genus Cunila, of which this species is the type, ever since its reformation by Bentham more than 30 years ago, has been characterized as diandrous with no vestiges of the supe- rior pair of stamens. Bentham cites the figure in Sweet, Brit. Flower Garden, t. 243, without noticing that it represents, and the letterpress describes, a rather conspicuous capitellate-tipped pair of rudimentary stamens, probably supposing this to be incorrect. It is, however, only an exaggeration ; for, as Professor Buckhout of Pennsylvania Agricul- tural College has shown me, minute rudimentary sterile filaments are uniformly present in our species. If truly absent in the Mexican and Brazilian species, the value of this character as a generic one is re- 366 PROCEEDINGS OP THE AMERICAN ACADEMY duced, and by analogy a leading distinction of the preceding genus considerably invalidated. Hedeoma Pers. — Under Euhedeoma, I arrange our species as follows, * Filamenta stam. sup. conspicua antheram abortivam capitellatam nunc vix imperfectam gerentia : calyx egregie bilabiatus, labiis difformibus. H. pulegioides Pers. — Cis-Mississippiana. * * Filamenta superiora aut minuta subulata nuda, aut obsoleta : calyx dentibus omnibus subulatis. n— SubasquilongiS, post anthesin erectis vel sursum curvatis : an- nua?, erectae, bracteis lineari- vel aceroso-subulatis demum reflexis patentibusve. H. acinoides Scheele in Linnasa, 22, p. 592. Subglabra, latifolia ; calyce fauce parum pilosa, limbo vix bilabiato corolla 2 - 3-plo bre- viore. Arkansas, Texas. H. hispida Pursh. Foliosa, angustifolia ; calyce bilabiato, tubo cum foliolorum linearium marginibus pilis bispidis instructo, dentibus corol- lam adaequantibus, inferioribus magis aristiformibus bispidis. H. hirta Nutt. — Trans-Mississippiana. •*— -i— Calycis dentibus inferioribus superiores superantibus : bracteae saepius erectas pedicellis breviores. ++ Perennes basi lignescente ; foliis subsessilibus, venis validis in dentes salientes excurrentibus. H. plicata Torr. Bot. Mex. Bound, p. 130. — S. W. Texas. H. dentata Torr. 1. c. pro parte. — Arizona. ++ ++ Annuae basi indurata quandoque perennes ? foliis integerrimis parce crenulatisve, venis haud prominulis convergentibus. H. piperita Bentb. Lab. p. 730 ? Cinereo-pubescens vel puber- ula; foliis ovatis obtusis basi saepius rotundatis, floralibus supremis nunc oblongis petiolatis ; verticillastris laxis pauci — plurifloris ; calyce oblongo-tubuloso gibboso hirsuto, limbo satis bilabiato, labio superiore patente dentibus subulatis, inferiore dentibus magis setaceis longioribus erectis corollam subaequantibus. H. dentata var. nana, Torr. 1. c. — Accords with Bentham's character of Mocino and Sesse's plant, except that the calyx is by no means twice the- size of that of H. pulegioides. — New Mexico, Arizona, and adjacent parts of Mexico. OF ARTS AND SCIENCES: FEBRUARY 13, 1872. 367 Var. obloxgifolia : forma strictiore altiore (pedali), foliis oblongis sumruis lanceolatis acutis. H. dentata Torr. 1. c. pro parte. — New Mexico and Arizona. H. Drdmmondii Benth. 1. c. Cinereo-puberula vel pubescens ; foliis ovalibus oblongis vel (praasentiru superioribus) linearibus obtusis inte- gerrimis sessilibus vel basi angustata breviter petiolatis ; verticillastris paucifloris ; calyce ovato-tubuloso hispido vix bilabiato, dentibus omni- bus subulato-setaceis post anthesin conniventi-erectis sursumque plus minus curvatis, inferioribus superiores dimidio superantibus corolla pi. m. brevioribus. H. ciliata Nutt. PI. Gamb. p. 183. Wright's 1718, cited by Torrey under H. plicata, belongs here. — Nebraska and Texas to Arizona and Mexico. A well-marked section, for the two following species, may be named : — § 2. Stachyhedeoma. Flores subsessiles spicati, corolla fauce sub labio inferiore biplicata. — Herbte erectae, foliis subsessilibus, summis calyceque pilis longis hirsuto-ciliatis. H. graveolexs Chapman in herb. Caule sesquipedali e radice perenni ? stepius simplici parce hirsuto in spicam virgatam transeunte ; foliis ovatis rotundisve paucidentatis (semipollicaribus), floralibus consimilibus gradatim minoribus cum bracteis oblongis flores subses- siles haud aequantibus ; calycis bilabiati dentibus valde hispido-ciliatis, labii superioris lati deltoideis brevibus, inferioris angustissime subula- tis tubo oblongo campanulato atque corolla? tubo subrequilongis ; sta- minibus fertilibus labium superius vix emarginatum corollas adasquanti- bus, sterilibus brevibus subulatis. Calyx inaequaliter 12 - 13-nervius, fauce pilis paucis hirsuta, corolla intus nuda. — Florida, near Apala- chicola, Dr. Chapman. H. ciliata Benth. in DC. Caule ultrapedali e radice annua retrorsum pubescente ; foliis oblongis obtusis subintegerrimis glabris basi cum floralibus angustioribus bracteisque subulatis vel setaceis pilis setisve longis albidis parce hispido-ciliatis ; spica brevi densa e verticil- lastris 6 - 10-floris ; pedicellis brevissimis complanatis ; calyce fusifbr- mi-subgibboso lo-nervio stricto basi hispido superne bilabiato, denti- bus subulatis consimilibus ciliolatis post anthesin conniventibus, fauce villoso-barbata ; corolla tubo vix exserto, labio superiore bilobo, fauce sub staminibus 2 brevibus inclusis pilosa ; filamentis sterilibus nullis. Keithia ciliata Benth. Lab. — Texas, Berlandier (ex Benth.), Drum- mond. 368 PROCEEDINGS OF THE AMERICAN ACADEMY Calamintha (§ 3. Acanthomintha ; verticillastri capituliformes, bracteis 4 majusculis rigidis foliaceis spinuloso-dentatis suffulti : an- therae subtus villoso-barbataa) ilicifolia : annua, ramosa, spithamaea, puberula ; foliis caulinis floralibusque ovato-spathulatis cuneato-oblon- gisve (semipollicari, cum petiolo aequilongo) dentibus paucis muticis instructis ; bracteis flores adasquantibus sessilibus ovatis coriaceis supra parce pilosis, venis divaricatis costaque valida in aristas rigidas pro- duces ; calyci oblongo villoso-pubescente, labio superiore tridentato quam inferioi'e bifido longiore et latiore, dentibus deltoideis spinuloso- apiculatis ; corolla (purpurea seu alba ?) calyce duplo longiori ; fila- mentis valde inaequalibus brevibus fauci fere insertis; antheris subuni- locularibus, staminum breviorum minoribus. — California, probably Lower California, Major Rich ? in Herb. Torr. Salvia L. Dr. Torrey justly reduces Salviastrum of Scheele to Salvia ; but it forms a capital section, for which Engelmann's proposed name of Trichosphace (Bot. Zeit. 9, p. 45), would have been most characteristic. Salvia (Salviastrum) Texana Torr. Bot. Mex. Bound, p. 132. Salviastrum Texanum Scheele ; Torr. & Gray Pacif. R. R. 2, t. 6. — Texas to New Mexico. Var. canescens : forma incana, foliis omnibus angusto-linearibus marginibus valde revolutis, floribus paucioribus. — S. W. Texas and Rio Grande on the Pecos. Wright (467), Schott. Salvia (Salviastrum) Engelmanni. Vix puberula cum pilis setosis parcissimis ; foliis tenuioribus, floralibus plerumque flores pai'cos adaaquantibus ; corolla (plus pollicari) tubo fauceque angustiore calyce duplo longiori; caet. praacedentis. — W. Texas, Wright (465), Lind- heimer. Salvia (Echinosphace) carduacea Benth., includes S. gossy- pina Benth. PI. Hartw. And the section Echinosphace is a good primary one when made to include Pycnosphace also, viz. Salvia (Echinosphace) Columbaria Benth. The median tooth of the upper lip of the calyx apparently is always wanting in this species ! Salvia (Heterosphace) Henrti. & R&meriance similis, gra- cilior, pube nee molli ; foliis foliolisve minoribus vix cordatis angulato- lobatis, floralibus inferioribus saepe conformibus, etiam summis pedi- cillis aequilongis ; calyce hirsuto, fauce sinubusque ciliato-barbatis seu villosis ; corolla (coccinea) angustiori, labiis brevioribus minus lobatis, OF ARTS AND SCIENCES: FEBRUARY 13, 1872. 369 tubo basi intus baud piloso-annulato. — New Mexico, on the Mimbres, &c, Dr. Henry, Thurber, Bigelow, and adjacent borders of Texas, Wright (not numbered). Salvia (Calosphace) Greggii. Frutescens, l°-3°-pedalis, fere glaberrima ; ramis gracilibus foliosis ; foliis (lin. 3-9 longis) oblongis obtusissimis integerrimis basi in petiolum brevem angustatis aveniis costa prominula, floralibus calyce brevioribus caducis ; racemo sparsi- floro ; calyce vix glanduloso, labiis patentibus tubo dimidio breviore, labio superiore lobisque inferioris bipartiti ovatis mucronato-acutis ; corolla (pollicari rubra) glabra, tubo valde ventricoso, fauce sub labio inferiori (superius vix glanduloso-puberulum subrequante) abrupte constricta ; connectivo crure inferiori oblongo-lineari ; stylo postice piloso. S. microphylla Torr. Mex. Bound, p. 131, non HBK. — Saltillo, Mexico, Gregg. S. Texas on the Rio Grande, Parry, Schott. Salvia (Calosphace) Parryi. Frutescens, humilis, ramosissi- ma ; foliis ovato-oblongis basi saepius truncata crenatis obtusis brevi- petiolatis cum ramulis tomentuloso-canescentibus, floralibus ovatis acuminatis membranaceis supra glabris persistentibus flores interrupte spicatos superantibus ; calyce campanulato pilis dendriticis albis creber- rime lanatis, labio superiori tridentato, inferiori bifido ; corolla (parva caarulea ?) pube dendritica lanulosa, labio superiore emarginato, inferi- ore lobis lateralibus parvis erectis, medio multo majore, iterurn trilobo, lobulo medio rotundato emarginato ; connectivis discretis, cruribus inferioribus semihastatis antherifero subulato aequilongis. S. spicata ? Torr. Mex. Bound, p. 131, non R. & S. — Apache Springs, on the Rio Grande, Texas ? Parry. Monarda L. Upon a revision of the genus, it appears evident that we have, of the section Eumonarda, three species with distinctly petioled leaves, viz. 31. didyma L., M. clinopodia L. (excl. syn. Gronov.), and 31. fistulosa L., the two latter pretty clearly distinct, and the last running into several remarkable varieties ; also two with subses- sile leaves, 31. Bradburiana Beck, and 31. Russelliana Nutt. Of the section Cheilyctis, there are 31. punctata L., with its variety lasiodonta (Texas), and M. citriodora Cervantes, an older name than that of 31. aristata Nutt. Of this there are two varieties, viz. var. aristidata (to which belongs the figure in Bot. Mag. t. 3526 and 31. penicillata Nutt. PI. Gamb.) and var. tenui-aristata. Cedronella micrantha. Puberula; caule erecto ; foliis membra- naceous tenui-petiolatis grosse crenato-dentatis, inferioribus cordato- VOL. VIII. 47 370 PROCEEDINGS OF THE AMERICAN ACADEMY ovatis obtusis, superioribus ovato-lanceolatis oblongisve, floralibus suinmis minutis calyce brevioribus ; verticillastris sessilibus plurifloris plerisque in spicam cylindricam nudam (1 - 2-pollicarem) congestis ; calyce viridulo ovato-cam{ianulato, dentibus triangulari-subulatis tubo dimidio brevioribus ; corolla (albida, vix lin. 2 longa) staminibusque parum exsertis. — S. W. Texas near the borders of New Mexico (sta- tion not recorded, Wright, without number). A close congener of C. Mexicana Benth., to which belongs (as a var. cana) C cana Hook. ; and G. pallida var. Torr. Mex. Bound, is a form with smaller and shorter corollas. Scutellaria L. Although it may be inexpedient to make of this genus a distinct tribe, as proposed by Visiani and adopted by Reichen- bach, yet, now strengthened by the genus Salizaria Torr. (illustrated in the Botany of the Mexican Boundary), with similar embryo, &c, I should arrange for the two a subtribe (Scutellarinece) of the Stachy- dece, — to which Perilomia (figured with a straight embryo) does not belong. The winged nutlets of Perilomia, however, are curiously imitated in one or two species of Scutellaria, only obscurely so in S. parvida, as has been noted by Dr. Torrey in the work above men- tioned, but strikingly in S. nervosa Pursh, and in a Japanese species not otherwise very similar, viz. S. hederacea of Kunth and Bouche. Dr. Torrey's reference of S. Drummondii to his & resinosa is not borne out. The gradual transition alluded to is through a species quite distinct from either, and having neither the annual root of the former nor the filiform subterranean stolons bearing moniliform or concate- nated tubers which the latter exhibits along with its near allies, S. tuber- osa, angustifolia, antirrkinoides, and parvida. The nutlets of S. resinosa, and especially those of S. Drummondii^ are muricate, those of the species now distinguished are only minutely granulate and very much smaller. Its diagnosis is as follows : — Scutellaria Wrightii. Nee stolonosa nee tuberosa, e radice perenni lignosa multicaulis (semi - subpedalis) ; pube minuta ; foliis ovatis et spathulato-oblongis integerrimis subsessilibus ; corolla villoso- pubescente (violacea, lin. 6-7 longa) sursum valde ampliata, labiis requilongis ; nuculis minoribus minute granulatis. — E. Texas, Wright (no. 477, 478, 1539), Lindheimer. S. W. Arkansas, Gordon. * The original character of S. Drummondii assigns to it crenate leaves, of which there is, however, rarely a trace. Probably S. cardiophylla was confounded with it. OF ARTS AND SCIENCES : FEBRUARY 13, 1872. 371 Phtsostegia intermedia. Caule gracili ; foliis remotis lineari- lanceolatis repando-denticulatis ; spicis filiforaiibus saspius remotifloris ; calyce brevi lato-campanulato, dentibus triangularibus acutis tubo requilongis ; corolla (vix semipollicari) fauce valde ampliata. Dra- cocephalum intermedium Nutt. Fl. Arkans. — W. Kentucky and Ar- kansas to Louisiana and Texas. Variable as P. Virginiana is, it does not include this, I think. Phtsostegia parviflora Nutt. ex Benth. in DC. P. imbricata Bentb. in DC, non Hook. ! Tbis, again, is a pretty well marked trans- montane species, which must bear the name imposed by Nuttall : it is very different from Hooker's P. imbricata, which is one of the larger forms of P. Virginiana. Macbridea Ell. The calyx is pentamerous, but the two sepals which ordinarily compose the lower lip of the calyx are united (in M. pulchra Ell. almost wholly, in M. alba of Chapman usually but par- tially) with the lateral sepals, which, moreover, are free from the pos- terior sepal down to the throat. The anthers are pilose on the inner side, as is not uncommon in Labiatas, and by no means, so far as I have seen, inside, as the phrase " intus filamentis pollini commixtis pilosaa " would imply. Stachys Bigelovii. S. coccinece admodum affinis, undique cine- reo-puberula ; foliis caulinis deltoideo-lanceolatis subcordatisque grosse crenato-dentatis (pollicaribus, cum petiolo gracili), floralibus sessilibus lanceolatis floribus sessilibus plerumque brevioribus ; spica interrupta angusta ; calycis dentibus subulatis tubo campanulato subdimidio bre- vioribus ; corolla (rubra ? tantum semipollicari,) tubo gracili calyce subduplo longiori, labio superiori quam inferius breviori. — W. Texas, in the crevices of rocks on the Limpio, Wright (no. 1535), Bigelow, ex Torr. Bot. Mex. Bound, p. 134, where it is doubtfully referred to S. coccinea. Color of corolla not recorded, seemingly not scarlet. Trichostema Arizonicdm. Puberulum, multicaule e radice vel caudice ligneo perenni ; ramis simpliciusculis (semi - sesquipedalibus) ; foliis ovalibus ovatisque breviter petiolatis, floralibus parvis pedunculis racemosis gracilibus cymoso 3 - 5-floris 2 - 3-plo brevioribus ; calyce campanulato subrequaliter 5-fido requali, lobis ovato-lanceolatis corollae tubum adasquantibus ; lobis corolke spathulato-oblongis declinatis. (Pedunculi circa pollicares : bractaa minutre : filamenta subpollicaria.) T. dichotomun Torr. Bot. Mex. Bound. 1. c, non L. — S. borders of Arizona, on the slopes of the Chiricahui Mountains, Wright, no. 1541. 372 PROCEEDINGS OF THE AMERICAN ACADEMY Teucrium laclniatum Torr., referred of late by Dr. Torrey to T. Cubense L., which is also from Texas, appears to be quite clearly distinguished, by a lignescent perennial root, finely divided leaves which are usually somewhat scabrous-pubescent, larger corolla, and minutely reticulate (rather than punctate) nutlets destitute of longitu- dinal thickened ribs. 2. Determination of a Collection of Plants made in Oregon by Eliiiu Hall during the summer of 1871, with Characters of some New Species and various Notes. 1. Clematis ligusticifolia Nutt. in Torr. & Gray, Fl. l,p. 9. 0. Thalictrum occidentale, n. sp. T. dioico simile : stigmate longiori ; carpellis elongatis (maturis ad semipollicarem usque) fusifor- mibus parum ingequilateris subangulatis costis acutissimis 8-10 per- cursis acuminatis, stipite brevissimo seu vix ullo. — I have a fruiting specimen of this from the Kew distribution of the collections of the British Oregon Boundary Commission, ticketed Vancouver's Island, Dr. Lyall and C. B. Wood ; and a memorandum notes that Dr. Engel- mann's herbarium contains a specimen of the same, collected in Mon- tana by Professor Swallow. In the present collection made by Mr. Hall two or three fruiting specimens also occur. There are from 5 to 10 or 12 carpels to a flower, of which a few only seem to mature. The contrast between the short ovary and the long fruit is remarkable. To this may belong a specimen of Nuttall's collection, named T. hetero- phyllum, in flower only, arid a similar one in Mr. Spalding's Clearwater collection. But materials are wanting for the identification. 2. Anemone deltoidea Hook. Fl. Bor.-Am. t. 3. In fruit. 3. Trautvetteria palmata Fisch. & Meyer. ; forma occiden- talis, T. grandis Nutt. 4. Ranunculus (Batrachium) heterophyllus Weber. ; the larger specimens (4a) nearly equalling the var. peltatus (i?. peltatus Schrank) : new to this country. 5. Ranunculus Cymbalaria Pursh. Fl. p. 392. 0. Ranunculus alism^efolius Geyer, a large form. For this, or rather for the dwarf and slender form, my var. alismellus, there is apparently an earlier name, R. Pseudo-Hir cuius Schrenk, Enum. PI. Nov. 2, p. 65 (from Moscow Bulletin), 1842, which is not mentioned in Walpers and has been totally overlooked. Professor Godet kindly called my attention to it, and pronounced it the same as Bolander's no. 6258. OF ARTS AND SCIENCES: FEBRUARY 13, 1872. 373 6. Ranunculus Flammula L. Here we have for the first time in this country specimens of genuine R. Flammula which in size and luxuriance fully equal the largest European forms ; also (6a) very lux- uriant specimens of the var. intermedius. 7. Ranunculus orthorhynchus Hook. Fl. Bor.-Am. 1, p. 21, t. 9. The figure admirably represents this species, which is as rare in collections as it is well marked in character. But the var. alpinus of S. Watson, in King's Exploration on the Fortieth Parallel, is mani- festly a form of my R. adoneus, with less rounded petals. The Rev. Edward L. Greene likewise collected it on the higher mountains in Colorado. To R. orthorhynchus, on the other hand, clearly belongs Lyall's plant from "Washington Territory, referred to by Mr. Watson as R. fascicularis.* 8. Ranunculus Nelsonii Gray, which has been confounded with R. Occidentalis Nutt. ; and (9), its more slender variety, R. tenellus Nutt., which would seem to be distinct in its perfectly smooth fruit and less elongated persistent style, but is connected by transitional speci- mens. The synonymy is given in the subjoined foot-note.f * Ranunculus fascicularis, it may be noted, is an Eastern species, a good deal con- fused from the first, and not extending beyond or even to the Rocky Mountains. What has been so called from California is probably R. Californicus Benth. Mr. Watson's plant in King's Exploration is undeterminable. And Muhlenberg him- self confounded his species with early states of the hairy form (R. hispidus Muhl.) of that polymorphous species which we refer to R. repens L., the limits of which it is still a problem to define. To this belongs the R. fascicularis of Schlechtendal (Animad. Ranun. 2, p. 30, t. 2), described and figured from specimens sent by Muhlenberg to Willdenow, and also R. Schlectendalii Hook. El. Bor.-Am., founded on specimens gathered by Drummond on the eastern slope of the Rocky Mountains, which were truly identified with Schlechtendal's figure ; yet the R. hispidus of the same work is only a more developed state of it. R. fascicularis Muhl. fortunately was first published by Bigelow, in the Florida Bostoniensis (ed. 1, 1814), on a plant so named by Muhlenberg, identical with that figured by Hooker (tab. 8), and in my Genera Ulustrata (tab. 9) ; to this must pertain the name, whatever else Muhlen- berg may have had in view notwithstanding. t Ranunculi Oncostyli, nempe achenio plano-compresso pi. m. marginato stylo recurvo-uncinato persistente superato. * Macranthi, petalis (5 - 12) semipollicaribus aureis ; stylo subulato brevi. R. Californicus Benth. PI. Hartw. p. 295. R. dissectus Hook. & Am. Bot. Beech, p. 316, non Bieb. R. delphinifolius ? Torr. & Gray," Fl. 1, p. 659, non HBK. R. canus Torr. Bot. Whippl. p. 6. — California, extending to Oregon. 374 PROCEEDINGS OF THE AMERICAN ACADEMY 10. Isopyrum Hallii, n. sp. Elatum ; caule 1 - 2-pedali) superne bifoliato ; foliis amplis triternatis summove biternato ; foliolis obovato cuneatis (sesqui - bipollicaribus) irregulariter trifidis apice incisis ; flori- bus in pedunculo comrnuni elongato nudo vel folioso-bracteato nunc bifido pluribus umbellatini dispositis ; sepalis 5 obovatis stamina nu- merosissima baud superantibus ; filamentis apice clavatis ; petalis nullis ; R. Occident alis Nutt. in Torr. & Gray, Fl. 1, p. 22, excl. char, pro parte. R. hispidus Hook. Fl. Bor.-Arn. p. 19, pro parte. — Oregon, British Columbia, Sitka. Nuttall's species was founded, as his specimens testify, upon the large- flowered and usually very shaggy-hairy plant, which is not uncommon on the West- ern coast, although seldom collected in fruit (I have ripe carpels only in a specimen collected by Burke) ; but the description of it somehow got badly mixed up with the R. recurvatus of Bongard, and Nuttall's own R. tenellus, i. e. with the following species. To this pertains all that relates to the long style, comparatively small narrow petals, &c. Var. canus. R. canus Benth. PI. Hartw. p. 294. — California, in moist valleys of the Sacramento. Evidently a more canescent form of the present species. I have not seen the fruit, nor any other specimens answering to Hartweg's no. 1626. The specimens of Bigelow's Bot., Whipple's Expedition, referred to R. canus, probably belong to R. Californicus. * * Micranthi, petalis (5) haud ultra lineas 3 longis angustis luteis ; stylo elon- gato. ■<- Occidentales ; foliis supremis vel segmentis lanceolatis integerrimis ; petalis calycem excedentibus ; carpellis in capitulo 10-20. R. Nelsonii. R. recurvatus var. Nelsonii DC, Syst. 1, p. 290. R. recurvatus Bong. Veg. Sitcha, p. 123, non Poir. R. occidentalis Torr. & Gray, 1. c. pro parte. — Oregon to Sitka. Forma typica; foliis latioribus ; acheniis pilis parcis rigidis pi. m. conspersis nunc glabratis stylum ejusdem longitudinis maxime un cinatum gerentibus. Var. tenellus gracilior; foliis parvulis, lobis angustioribus ; stylo quam achenium lajve breviore. R. tenellus Nutt. in Torr. & Gray, 1. c. — Northern Cali- fornia (Bolander) to Vancouver's Island, &c. There is a R. tenellus of Viviani, from Egypt, perhaps of earlier date than Nuttall's, which, though overlooked by Boisser, may claim to be used. Nuttall's name is not a good one for the whole species as now regarded ; and his character is somewhat misleading as to " flowers minute " (the petals- are sometimes a quarter of an inch long), and very much so as to the " minute style." The style is, indeed, less prolonged than in what I take for the type of the species ; and this with the smoothness of the achenium and something in the habit of the plant might forbid the union : but there are transi- tions between the two forms. -t- +- Orientales ; foliis amplioribus ; petalis calyce brevioribus ; carpellis pluri- mis in capitulo denso. R. recdrvatus Poir. — Canada to Florida. OF AKTS AND SCIENCES: FEBRUARY 13, 1872. 375 carpellis 3-5 ovatis brevistylibus 2 - 4-ovulatis ; seminibus rugulosis. — A most distinct and mucb tbe largest and handsomest species of this genus ; the flowers individually about as large as those of I. biter- natum, but 6 to 10 together in an umbelliform often once or twice bifid cyme, and with the very numerous and conspicuous filaments as white as the sepals, and resembling those of Trautvetteria. 11. Caltha leptosepala DC. In flower and fruit. 12. Coptis asplenifolia Salisb. In fruit. 13. Aquilegia Formosa Fischer. Whether to be regarded as a variety of A. Canadensis is uncertain. 14. Delphinium Menziesii DC. The seeds will clearly distin- guish all forms of this from the Eastern D. tricome. 15. Delphinium trolliifolium, n. sp. Subglabrum vel tenuiter pilosulum ; caule laxo (bipedali et ultra) ; foliis sparsis longe petiolatis, petiolis basi subdilatatis, lamina circumscriptione orbiculata profunde 5 - 7-fida, segmentis cuneatis trifidis pauci-incisisque, lobulis obtusis (mucronulo calloso quasi truncato apiculatis) ; racemo sparsiflora per- laxo ; pedicellis adscendenti-patentibus, inferioribus pnesertim elonga- tis ; calcare sepalis petala superantibus longiore ; petalis superioribus integris albis, inferioribus subquadratis emarginato-bifidis erosis vel crenato-dentatis ; folliculis oblongis glabris laxe reticulatis demum recurvo-patentibus ; seminibus vertice scarioso-coronatis. Leaves in the dried specimens thin, 2 or 3, or the largest 4 or 5, inches in diame- ter, in outline and division reminding one of Trollius. Lower pedi- cels 2 or 3,*or in fruit sometimes 4, inches long. Flowers blue, except the upper petals : spur three fourths of an inch long. 16. Act^ea spicata L. var. rubra Michx., the A. arguta Nutt. 17. Cimicifuga (Pitysosperma) elata Nutt. in Torr. & Gray, Fl. 1, p. 36. C. fcetida Pursh, non L. This is exactly a Pityrosper- ma of Zuccarini, and apparently between P. acerinum (which only I have a specimen of) and P. biternatum. In the whole structure of carpels (from one to three in number) and seeds it well unites Macro- tys with Cimicifuga proper. 18. Berberis (Mahonia) Aquifolium Pursh, Fl. l,p. 219, t. 4. 19. Berberis (Mahonia) nervosa Pursh, 1. c. t. 5. 20. Vancouveria hexandra Decaisne. Epimedium hexandrum Hook. Fl. Bor.-Am. t. 13. The ovules, commonly "8-10," are sometimes as few as three, or even two, at least in Californian speci- mens. 376 PROCEEDINGS OF THE AMERICAN ACADEMY 21. Achlts triphylla DC. ; Hook. 1. c. t. 12. Specimens chiefly with mature fruit. The pericarp, when dry somewhat quasi-crelosper- mous, is certainly not " bivalvatim dehiscens " nor really dehiscent at all. The whole dorsal portion, of a chestnut-brown color, is almost cartilagi- nous ; the ventral portion thin, membranaceous, and strongly concave or cupped, with a fleshy central ridge, which when soaked, and proba- bly in the fresh state, swells up very much and fills the concavity. This pulpy portion might be likened to the thickened placenta of Podophyllum. The seed, however, does tfot rise from it, but from the base of the cell. 22. Brasenia peltata Pursh. The only specimens seen from the Pacific side of the continent, except those collected in Wilkes's Explor- ing Expedition. 0. Nuphar polysepalum Engelm. in Trans. Acad. St. Louis. 23. Eschscholtzia Californica, var. Douglasii Torr. & Gray : chiefly small-flowered forms. 24. Dicentra FORMOSA DC. Apparently not distinct from the Eastern D. eximia. 25. Nasturtium curvisiliqua Nutt. in Torr. & Gray, 1. c. Char, to be altered, and species to include at least N. polymorphum Nutt., a better name for it. Forms, with slender pod and sometimes slender pedicel, the style very short but distinct (25) : with shorter narrow pod on short pedicel (26) : with thicker pod on short pedicel, nearly or quite the same as N. hjratum Nutt. (27). 28. Nasturtium palustre DC. : the ordinary European form. — N. 4, of Lyall's collection on the 49th parallel, with pods too long for N. palustre, is exceeded in this respect by the plant from the same district, (wrongly) named JV. lyratum in the 12th volume of the Pacific Railroad Explorations, which again comes near N. montanum Wall., a species which on the Asiatic side occurs as far north as Corea. 29. Cardamine cordifolia Gray PI. Fendl. p. 8. Form with weaker stem and ampler leaves, of round-cordate or almost reniform outline, bearing therefore a closer resemblance to G. asarifolia, but the less dentate leaves, short style, and smaller stigma distinguish it. Watson's specimens from Utah and Nevada are intermediate between these and Fendler's original plant. 30. Cardamine angulata Hook. Bot. Misc. 1, p. 243, t. 69. 31. Cardamine oligosperma Nutt. in Torr. & Gray, 1. c. Ap- parently a good species. Radical leaves often simple. OF ARTS AND SCIENCES: FEBRUARY 13, 1872. 377 32. Cardamine hirsuta L. : an ordinary form ; with some of a slender small-leaved variety, named by Nuttall 0. microphylla. 33. Arabis hirsuta Scop. ; the western form ; and A. perfoliata Lam., the form which is Turritis macrocarpa Nutt., sparingly col- lected. 34. Thelypodium laciniatum Endl. (Macropodium Hook.) In fruit. 35. Erysinum asperum DC, var. E. datum Nutt. 1. c. 36. Sisymbrium deflexum Harvey ; Torr. Bot. Whippl. p. 10. With mature fruit. 37. Lepidium Menziesii DC. ; Hook. Fl. Bor.-Am. 1, p. 68. 38. Thysanocarpus curvipes Hook. 1. c. p. 69, t. 18. 39. Thysanocarpus pusillus Hook. Ic. t. 43, which includes T. oblongifoliiis Nutt. 40. Cleome lutea Hook. Fl. Bor.-Am. 1, p. 70, t. 25. 41. Viola bland a Ait. ; apparently, but wholly in fruit. 42. Viola canina L., var. V. adunca Smith ; Hook. 1, p. 79. 43. Viola Nuttallii Pursh. ; Hook. 1. c. t. 26. Mostly in fruit. 44. Viola sarmentosa Dougl. in Hook. 1. c. Small form, in fruit. 45. Viola glabella Nutt. in Torr. & Gray, 1. c. Too near V. pubescens. 40. Viola Hallii, n. sp. Melanium, glabra, ut videtur perennis ; caulibus e surculo gracili adscendentibus spithamaais a basi foliatis ; foliis trisectis, segmentis in petiolum longum rhachinque decurrentibus cuneatis trifidis (lateralibus quandoque lanceolatis subintegris), lobis lanceolatis ssepius integerrimis ; stipulis foliaceis lanceolatis oblongisve sublaciniatis, uno saspissime multo minore integerrimo ; petalis 3 luteis quorum lateralibus basi tenuiter barbatis, 2 superioribus atro-violaceis ; calcare brevissimo. — Most unexpected as a North American species, and a striking and handsome one, with the flower of a Pansy ; the petals half an inch or more in length. Style clavate, the large almost regular stigma bearded all round. Near Salem. 47. Hypericum anagalloides Cham. & Schlecht. in Linnsea, 3, p. 127. 48. Hypericum Scouleri, Hook. Fl. Bor.-Am. 1, p. 111. 49. Elatine Americana Arn. Crypta minima Nutt. 50. Silene Drummondii, Hook. Fl. Bor.-Am. — Two or three vol. vill. 48 378 PKOCEEDINGS OF THE AMERICAN ACADEMY specimens were gathered, in cemetery grounds near Salem, of what seems to be S. Bolanderi Gray, Proceed. Acad. 7, p. 330. 51. Silene Menziesii Hook. 1. c. p. 99, t. 30. 51a. Arenaria (Mcehringia) macrophtlla Hook. 1. c. t. 37. 52. Arenaria tenella Nutt. in Torr. & Gray, Fl. p. 179. 53. Stellaria media L. Apparently indigenous. 54. Stellaria crispa Cham. & Schlecht. in Linnaea, 1, p. 51. 55. Stellaria borealis Bigelow, var. corollina Fenzl in Ledeb. Fl. Ross. S. alpestris Fries. The same collected at Lake Superior by Dr. Robbins. 56. Stellaria nitens Nutt. in Torr. & Gray, Fl. 1. c. 57. Cerastium vulgatum L. Apparently an indigenous form. 58. Sagina Linn^ei Presl. A little S. procumbens L. also col- lected. 59. Spergularia media Presl. the form called Lepigonum leio- spermum by Kindberg ; and 60, S. rubra Presl. 61. Mollugo verticillata L. 62. Clattonia Sibirica L. 0. alsinoides Sims. A larger and a smaller form. 63. Claytonia perfoliata Donn. 64. A depauperate variety, the C. parviflora Dougl. 65. Claytonia Chamissonis Eschsch. 0. flagellaris Bongard and G. aquatica Nutt. 66. Var. tenerrima, an exceedingly depauperate and slender form of this species. 67. Claytonia linearis Hook. Fl. Bor.-Am. t. 71. 68. A form larger in all its parts, the seeds a full line in diameter. 69. Claytonia parvifolia Mocino. C.filicaulis Hook. 1. c. t. 72. — 0. diffusa Nutt. in Torr. & Gray Fl. is an interesting species of the region yet to be rediscovered. 70. Spraguea umbellata Torr. PI. Fremont, t. 1. New to Oregon. 71. Sidalcea malv^flora Gray, PI. Fendl., & PI. Wright: two or three forms. 72. Geranium Carolinianum L. 73. G. incisum Nutt. in Torr. & Gray, 1. c. 73a. Erodium cicutarium L'Her. 74. Oxalis Oregana Nutt. in Torr. & Gray, 1. c. 75. O. corni- culata L. 76. Pachystima Myrsinites Raf. Myginda myrtifolia and later Oreophila myrtifolia Nutt. OF ARTS AND SCIENCES: FEBRUARY 13, 1872. 379 77. Rhamnus Purshianus DC- ; Hook. 1. c. t. 43. 78. Ceanothus velutinus Dougl. in Hook. 1. c. t. 45. In fruit. 79. Ceanothus Oreganus Nutt. in Torr. & Gray, Fl. 1, p. 265. 80. Acer macrophyllum Pursh, and 81. A. circinatum Pursh ; both in fruit. 82. Rhus diversiloba Torr. & Gray, 1. c. R. lobata Hook. 1. c. t. 46. In fruit and flower. 83. Thermopsis fabacea R. Br., var. Montana Gray. T. mon- tana Nutt. in Torr. & Gray. 84. Lupinus bicolor Lindl., which is likewise L. min-anthus Dougl. 85. Lupinus polyphyllus Lindl. Bot. Reg. t. 1097. 86. Lupinus latifolius Agardh, Syn. Lup. ; a variety, or some species near it. 87. Lupinus leucophyllus Lindl. Bot. Reg. t. 1124. 88. Lupinus ornatus Dougl., and 89, L. foliosus Nutt., in small quantity. 90. Lupinus laxifolius Dougl., by the calyx ; but a remarkable, rather densely flowered variety. 91. Lupinus parviflorus Nutt. in Torr. & Gray, Fl. 1, p. 375. 92. Lupinus minimus Dougl. in Hook. Fl. Bor.-Am. 1, p. 163. 93. Lupinus holosericeus Nutt. in Torr. & Gray, Fl. 1, p. 380. In fruit. 94. Trifolium eriocephalum Nutt. in Torr. & Gray, Fl. 1, p. 313. 95. Trifolium Macr^ei Hook. & Arn. Bot. Beech. T. albopur- pureum Torr. & Gray, 1. c. 96. Trifolium ciliolatum Benth. PI. Hartw. Not before found north of California. The rhachis is often prolonged into a filiform tip, projecting much beyond the head. 97. Trifolium gracilentum Torr. & Gray, 1. c. : a slender variety. 98. Trifolium cyathiferum Lindl. ; Hook. Fl. Bor.-Am. t. 50. 99. Trifolium microdon Hook. & Arn. Bot. Beech, t. 79. 100. Trifolium microcephalum Pursh ; Torr. & Gray, 1. c. 101. Trifolium pauciflorum Nutt. in Torr. & Gray, 1. c. 102. Trifolium fimbriatum Lindl. Bot. Reg. t. 1070; small forms, with broad leaflets. 103. Var. angustifolium. T. tridenta- ium Lindl. Bot. Reg. 380 PROCEEDINGS OF THE AMERICAN ACADEMY 104. Glycyrrhiza lepidota Nutt. ; Bot. Mag. t. 2050. Chiefly in fruit. 105. Psoralea lanceolata Pursh. Fl. 2, p. 475 ; Hook. Fl. Bor.-Ara. p. 135, t. 51. 106. Psoralea physodes Dougl. in Hook. 1. c* 107. Hosackia decumbens Benth. ; Torr. & Gray, 1. c. p. 324. 108. Hosackia crassifolia Benth. ; Gray, Rev. p. 350. H. stolonifera Lindl. Bot. Reg. t. 1977. 109. Hosackia bicolor Dougl.; Lindl. Bot. Reg. t. 1257. 110. Hosackia gracilis Benth.; a depauperate form. 111. Hosackia parviflora Benth. ; Gray, Rev. p. 351. 112. Hosackia (Microlotus) Purshiana Benth., a pubescent form : also, 113, an almost glabrous variety, H. data, var. glabra Nutt. in Torr. & Gray, 1. c. m 114. Vicia gigantea Hook. Fl. Bor.-Am. 1, p. 157. 115. Vicia Oregana Nutt. in Torr. & Gray, 1. c. A form of V. Americana, apparently ; very variable in the foliage ; passing into 116, V. truncata Nutt. and V. sparsiflora Nutt. 1. c, the latter with all the leaves linear and narrow. 117. Lathyrus Torreti Gray, Proc. Am. Acad. 7, p. 337. * I here append the characters of an interesting addition to a chiefly Eastern North American genus, viz. : — Petalostemon Searlsi^e, n. sp. : perennis ? prseter spicara glaberriraus ; foliis 5 - 7-foliolatis cum caule ramisve simplicibus grosse glandulosis ; foliolis oblongo- linearibus obtusis vel retusis crassiusculis ; spica longiuscule pedunculata cylin- drica compacta ; bracteis ovatis membranaceis pauci-glandulosis in acumen caudi- forme calycem adaquantum productis sericeo-ciliatis deciduis; calycis dentibus attenuato-subulatis mollissime villosis tubo minus pubescente a?quilongis ; petalis roseo-purpureis prseter vexillum deltoideo-cordatum angusto-oblongis. — The only other species found west of the Mississippi Valley is the P. exile of Wright's col- lection, from Arizona. This is from a similar region farther north ; viz., from the Pahranagat Mountains in southeastern Nevada (about 400 miles southwest of Salt Lake), where it was discovered by Miss Searls. It was one of an extremely interesting collection made by this young lady in the vicinity of the Pahranagat mines (which she visited in company^with her father), and entrusted to me by Pro- fessor Marcy of Evanston, 111. A lady who braves the hardships of a journey to 6uch a remote and inhospitable district, and has the sense and spirit to make a col- lection of plants in a place far out of the track of any botanist, well deserves to have her name perpetuated in the annals of botany. I give it accordingly with much satisfaction to one of the two entirely new plants of the collection. For others, see succeeding notes, e. g. CEnotkera, Chmnactis, Pentstemon, &c. OF ARTS AND SCIENCES : FEBRUARY 13, 1872. 381 118. Lathyrus venosus var ? Torr. & Gray, 1. c. L. pubescens Nutt. 1. c. ; but mainly glabrous. Fruiting specimens. 119. Lathyrus polyphyllus Nutt. in Torr. & Gray, 1. c. 120. Prunus (Cerasus) mollis, Dougl. in Hook. 1. c. This is probably P. erecta Presl, Epimelia, p. 194. 121. Prunus Virginiana L. var., the Cerasus demissa Nutt. in Torr. & Gray, Fl. 1, p. 411, which is commonly thought distinct by those who have seen it living. 122. Nuttallia cerasiformis Torr. & Gray, Fl. 1, p. 412. In fruit. 123. Spiraea opulifolia L. ; a Western, but nearly glabrous form. 124. Spiraea betul^efolia Pallas; a small-leaved form. Also, 125, var. rosea, with rose-red corolla, found likewise in California. 126. Spir^a Douglasii Hook. 1. c. ; Bot. Mag. t. 5151. 127. Spiraea Menziesii Hook. 1. c. 128. Spiraea arlefolia Smith ; Hook. 1. c. 129. Geum macrophyllum Willd. ; Torr. & Giay, Fl. 1, p. 421. Referred to G. Japonicum by Scheutz in his recent monograph ; but the identification is not wholly satisfactory. See Amer. Jour. Science, April, 1872, p. 306. 130. Alchemilla occidentals Nutt. in Torr. & Gray, Fl. 1, p. 421. 131. Poterium annuum Nutt. in Hook. 1. c. Sangidsorba annua Nutt. in Torr. & Gray, 1. c. 132. Poterium officinale, i. e. Sangidsorba officinalis L. Al- ready found both north and south of Oregon. 133. Horkelia congesta Hook. Bot. Mag. t. 2880. 134. Potentilla glandulosa Lindl. Bot. Reg. t. 1583. 135. Potentilla diversifolia Lehm. in Hook. 1. c. 136. Potentilla gracilis Dougl., Hook. Bot. Mag. t. 2984. 137. Fragaria vesca L., the var. y. Torr. &" Gray, Fl. 1, p. 448. 138. Rubus Nutkanus Mocjno. One or two specimens displayed rose-red flowers, like those of its Eastern analogue, R. odoratus, but the tinge was slight when fresh, according to Mr. Hall. 139. Rubus spectabilis Pursh, Fl. 1, t. 16 ; the Salmon-Berry. 140. Rubus pedatus Smith Ic. Ined. t. 63. Comaropsis pedata DC Prodr. 141. Rubus leucodermis Dougl.; Torr. & Gray, 1. c. In fruit. 382 PROCEEDINGS OF THE AMERICAN ACADEMY 142. Rubus macropetalus Dougl. in Hook. 1. c. t. 59. 143. Rosa gymnocarpa Nutt. in Torr. & Gray, 1. c. p. 461. 144. Rosa blanda Ait. ? Chiefly, at least the fruiting specimens, of the form (if such it be) answering to R. Woodsii Lindl. Ros. & Bot. Reg. t. 976. Fruit subdepressed-globose, with no neck at all; until full-grown with the calyx-lobes spreading, then apparently ascending or erect. R. fraxinifolia of Watson in King's Exploration is the same with larger fruit. — A small quantity, insufficient for distribution, was collected, of a common Nevadan and Californian Rose, Mr. Watson's R. blanda. This has smaller flowers, stipular prickles when present inclined to curve, the calyx-tube with a contracted neck, and an ovoid- globular fruit, about 5 lines long when full grown, the persistent calyx- lobes tardily ascending or at length conniving. I do not know this in North-eastern America, to which R. blanda proper belongs. I take it to be Chamisso and Schlechtendal's R. Galifornica. 145. Rosa pisocarpa, n. sp. Gracilis, aut inermis aut aculeis substipularibus acicularibus tenuibus rectis nunc paucisque minimis petiolaribus munitis ; corymbo pauci-plurifloro bracteoso ; calycis lobis (extus glandulosis intus cano-tomentosis) e basi ovata in acumen saepius gracile sursumque lanceolato-dilatatum productis, tubo glabro primum urceolato, fructifero fere globoso (pisi magnitudine) basibus tantum loborum persistentibus arete reflexis coronato ; pedunculis fructiferis nutantibus ; — cast, prascedentis vel R. blandce forma minoris. Petala laete rosea, obcordata, lin. 6-8 longa. Foliola semipollicaria ad polli- caria. 146. Rosa Kamtschatica Vent. Cels. t. 67. In fruit only ; the strong shoots densely setose, and with immense dilated aculei. One or two smooth specimens also collected. An intermediate form is in Dr. Lyall's collection, from Vancouver's Island. The R. cinnamonea in PI. Hartweg, to which Ventenat's plant is referred as a synonyme, is wholly different, and apparently R. Galifornica, Cham. & Schlecht. 147. Pyrus rivularis Dougl.; Hook. Fl. Bor.-Am. t. 68. 148. Ptrus (Sorbus) sambucifolia Cham. & Schlecht. In fruit. 149. Amelanchier Canadensis var. alnifolia Torr. & Gray, Fl. 1, p. 473. In fruit. 150. Saxifraga integrifolia Hook. Fl. Bor.-Am. 1, p. 249, t. 86. 151. Saxifraga Virginiensis Michx. ; a very tall form. OF ARTS AND SCIENCES : FEBRUARY 13, 1872. 383 152. Saxifraga heterantha Hook. 1. c. t. 78. A very distinct species, although considered to be a variety of the next in Torrey and Gray's Flora. 153. Saxifraga punctata L. S. aestivalis Fischer; Torr. & Gray, Fl. &c. 154. Saxifraga Toljlei Torr. & Gray, Fl. 1, p. 567. A few- specimens. 155. Saxifraga c^espitosa L. ; Hook. Fl. Bor.-Am. 1. c. 156. Saxifraga elegans Nutt. in Torr. & Gray, Fl. 1, p. 573. Beautiful and abundant specimens, some of them many times larger than Nuttall's. Judging from these specimens the species may well deserve the name. 157. Boyklnia occidentals Torr. & Gray, Fl. 1, p. 577 & p. 698. 158. Var. elata. * Saxifraga elata Nutt. 1. c. 159. Heuchera micrantha Dougl. in Bot. Reg. t. 1302 ; Hook. Fl. Bor.-Am. 1. c. 160. Heuchera cylindrica Dougl. in Hook. 1. c. ; Bot. Reg. t. 1924. 161. Tolmiea Menziesii Torr. & Gray, Fl. 1, p. 582. An inter- esting plant, rarely collected. 162. Tellima grandiflora Dougl. in Bot. Reg. t. 1178. 163. Mitella caulescens Nutt. in Torr. & Gray, Fl. 1, p. 586. 164. Mitella trifida Graham; Hook. Fl. Bor.-Am. t. 82. 165. Tiarella trifoliata L. ; Pursh, Fl. 1, p. 313. 166. Tiarella unifoliata Hook. Fl. Bor.-Am. 1, p. 238, t. 81. 167. Philadelphus Lewisii Pursh, Fl. 1, p. 329. 168. Ribes divaricatum Dougl. ; Lindl. Bot. Reg. *t. 1359. In fruit. 169. Ribes setosum Dougl. in Hook. 1. c. ; a variety of B. lacustre Poir. In fruit. 170. Ribes sanguineum Pursh, Fl. 1, p. 164. 171. Ribes bracteosum Dougl. in Hook. 1. c. 172. Sedum spathulifolium Hook. Fl. Bor.-Am. 1, p. 227. 173. Till^ea angustifolia Nutt. in Torr. & Gray, Fl. 1, p. 558. 174. Myriophyllum hippuroides Nutt. in Torr. & Gray, Fl. 1, p. 530. 175. Epilobium angustifolium L. 176 - 8. Epilobium tetragonum L., or allied species, in several forms. 384 PROCEEDINGS OF THE AMERICAN ACADEMY 179. Epilobium alpinum L., or nearly allied to it. 180. A form near it in fruit. 181. Epilobium minutum Lindl. in Hook. 1. c. 182. Epilobium paniculatum Nutt. in Torr. & Gray, Fl. 1, p. 490. 183. Gatophttum Nuttallii Torr. & Gray, Fl. 1, p. 514, with rather slender pedicels. 184. Oenothera albicaulis Nutt. in Fraser, Cat. & Gen.* 185. Oenothera (Boisduvalia) densiflora Lindl. Bot. Reg. t. 1593. 186. A more villous form. 187. A narrow-leaved and strict variety. (E. imbrlcata Nutt. in herb. 188. A less pubescent, narrow- leaved, slender variety. (E. salicina Nutt. in Torr. & Gray, 1. c. 189. Var. tenella : a depauperate and very small-flowered canes- cently villous form. 190. Oenothera (Boisduvalia) glabella Nutt. in Torr. & Gray, 1. c. 191. Oenothera Lindleyi Dougl. ; Bot. Mag. t. 2832. 192. Oenothera, one of the Oregon Godetias which have been referred to (E. tenella. 193. OEnothera purpurea Curtis Bot. Mag. t. 352, a small-flow- ered form, which includes (E. lepida and (E. qui?iquevulnera? 194. A depauperate small-flowered variety of the same. 195. Gaura parviflora Dougl. in Hook. Fl. Bor.-Am. 1, p. 208. 196. Ludwigia palustris Ell. Isnardia palustris L. 197. Circ^ea pacifica Ascherson & Magnus in Bot. Zeit. 1871, p. 392. Same as Bolander's ancLLyall's plants from which the species is described, and as 0. Lutetiana var. oecidentalis of Nuttall in herb. ; but allied to G. alpina. 198. Echinocystis fabacea Decaisne. Sicyos Oreganus Torr. & Gray, Fl. 1, p. 542. Very fine specimens of this, the Oregon form of Megarrhiza Torr., which may fairly claim generic rank. 199. Mentzelia l^evicaulis Torr. & Gray, Fl. 1, p. 535. Bar- tonia Icevicaulis Dougl. ; Hook. 1. c. t. 69. * (Enothera brachycarpa Gray, PI. "Wright, 1, p. 70, and 2, p. 57, was among the interesting plants collected by Miss Searls in the Pahranagat Moun- tains, Nevada. It is the (E. marginata var. purpurea of S. Watson in King's Expe- dition, but is very different from (E. ccespitosa Nutt. (the oldest name of the species which is to comprise CE. marginata, montana, and eximia, doubtless well combined by Mr. Watson), as the fruit demonstrates. The corolla, instead of pale yellow turn- ing rose-color, is now known to be white with a purple tinge from the first. OF ARTS AND SCIENCES : FEBRUARY 13, 1872. 385 200. Eryngium petiolatum Hook., var. juncifolium : gracile, subsesquipedale ; petiolis longissimis nodoso-articulatis, radicalibus (6-10 poll, longis) nunc aphyllis nunc lamina parva (pollicari) lanceo- lata superatis ; capitulis parvulis. — Hooker's species must include his E. articulation in PL Geyer., as well as the present slender form of it, the petioles of which imitate those of one of the nodose Junci. Nut- tall collected the same plant on the Willamette. 201. Sanicula Menziesii Hook. & Arn. ; Hook. Fl. Bor.-Am. 1, p. 258, t. 90. 202. Sanicula bipinnatifida Dougl. in Hook. 1. c. t. 92. 203. Carum Gairdneri Benth. & Hook. Atcenia Hook. & Arn. Edosmia Nutt. 204. (Enanthe sarmentosa Nutt. in Torr. & Gray, Fl. 1, p. 617. 205. Crantzia lineata Nutt. Remarkably fine and large speci- mens, with ripe fruit. 206. Pimpinella apiodora Gray, Proc. Am. Acad. 7, p. 345 : var. NUDiCAULis : parvula ; caule scapiformi subaphyllo vix pedali. Apparently a small and high-mountain form of the Californian species ; in flower only. 207. Ligusticum (Cynapium) apiifolium, Gray, 1. c. p. 347. 208. Angelica genuflexa Nutt. in Torr. & Gray, Fl. 1, p. 620, ex. char. With immature fruit. 209. Ferula (Leptot^enia) dissecta Gray, 1. c. In fruit. 0. Peucedanum macrocarpum Nutt. in Torr. & Gray, 1. c. Two or three specimens of the true plant, with ripe fruit, 8 lines long and less than 3 lines wide, including the wing, which on each side is about the width of the disk. — 210. Var. ? eurycarpum : fructus lato-elliptici alis tenuibus utrinque disco latioribus. Specimens with mature fruit only, in some 8 lines long and with the wing fully 2 lines wide on each side ; probably a state of this species, certainly so, if Torrey's var. platypterum is, but that remains very doubtful ; in other specimens half an inch long, and the wing a line and a half wide : this approaches P. millefolium S. Watson. 211. Peucedanum nudicaule Nutt. 1. c. Smyrnium nudicaule Pursh ? 212. Peucedanum utriculatum Nutt. in Torr. & Gray, 1. c. 213. Peucedanum triternatum Nutt. 1. c. Seseli triternatum Pursh ; Hook. 1. c. t. 94. VOL. VIII. 49 386 PROCEEDINGS OF THE AMERICAN ACADEMY 214. Peucedandji leiocarpum Nutt. 1. c. Seseli leiocarpum Hook. 1. c. t. 93. 215. Sium lineare Michx. ; Gray Man. ed. 5, p. 196. 216. Osmorrhiza nuda Toit. Bot. Whippl. This does not seem to pass into 0. brevistylis, with which it has been perhaps unavoidably confounded. 217. Glycosma ambiguum, n. sp. Distinguished from G. Bolan- deri by greater smoothness, more acute and incised leaflets, longer pedicels, and especially by the shorter fruit (6 or at most 7 lines long), which is decidedly contracted at the commissure, and the ribs towards the base more or less setose, — characters which, with the habit, ally this plant to Osmorrhiza much more than to Myrrhis. While Bentham and Hooker referred Nuttall's Glycosma to Myrrhis, they neglected to extend the character so as to include it. It is now clear to me that the genus should be kept distinct both from Myrrhis and Osmorrhiza, although between the two. The cardinal characteristic of Osmorrhiza is the caudate attenuation of the base of the carpels. Glycosma has none of this, but the base is abrupt and obtuse. From Myrrhis it dif- fers in habit, geographical distribution, absence of involucels, and strik- ingly in the merely costate (not enlarged and wing-like) juga. As to the breadth of the commissure or contraction of the sides of the fruit, while the original species is much like Myrrhis in this respect, the pre- sent one is more like Osmorrhiza.* * Glycosma Nutt. in Torr. & Gray, Fl. 1, p. 639. Myrrhis Sp Glycosma Gray, Proceed. Acad. 7, p. 346. * Fructus laevis, basi obtusissimus, commissura lata. G. occidentale, Nutt. 1. c. Pruinoso-puberula ; foliolis oblongo-lanceolatis oblongisve serratis rare- incisis ; urnbellas fructiferae radiis suberectis, pedicellis flores sterilia pi. m. superantibus ; fructus jugis acutis. Myrrhis occidentalis Gray Proc. Acad. 1. c. G. Bolanderi, subpubescens ; foliolis ovatis magis incisis ; umbella; fructiferae radiis patentibus, pedicellis floribus sterilibus brevioribus ; fructus jugis obtusis. Myrrhis Bolanderi, Gray, 1. c. * * Fructus breviusculus, basi acutiusculus ad comraissuram parum constrictus, costis inferne pi. m. setulosis (nunc denudatis). G. ambiguum, n. sp. Elatum, glabrum ; petiolis costisque subtus pilosiusculis ; foliolis ovato-oblongis acutis dentato-incisis sajpiusque 2 - 3-fidis tenuiter membrana- ceis; umbellae fructiferae radiis patentibus; pedicellis flores sterilia aequantibus ; fructu(6-7 lin. longi) lineari-oblongo utrinque acutiusculo. — Foot of Cascade Mountains, Oregon. I may here append the characters of a new species of Musenium, viz. : — OF ARTS AND SCIENCES : FEBRUARY 13, 1872. 387 218. Echinopanax horrida Decaisne. {Panax horridus Smith.) Fatsia § Tetrapanax (Koch) Benth. & Hook. f. In fruit. 219. Cornus Nuttallii Audubon, Birds of N. Amer. t. 367. 220. Cornus Suecica L. (with a little C Canadensis). 221. Cornus sericea var. ? occidentals Torr. & Gray, Fl. 1, p. 652. Probably C. Drummondii C. A. Meyer, and distinct from any Eastern species. 222. Linn^ea borealis Gronovius. 223. Symphoricarpus racemosus Michx., var. pauciflorus Robbins in Gray Man. ed. 5, p. 203. 224. Lonicera ciliosa Poir. ; Torr. & Gray, Fl. 2, p. 5. Capri- folium ciliosum Pursh. 225. Lonicera hispidula Dougl. ; Torr. & Gray, 1. c. Caprifo- liiim hispididum Lindl. Bot. Reg. t. 1761. 226. Lonicera Californica Torr. & Gray, 1. c. ; a variety with glabrous peduncle, ovaries, &c. 227. Lonicera (Xylosteon) involucrata Banks ; Lindl. Bot. Reg. t. 1179. 228. Viburnum ellipticum Hook. Fl. Bor.-Am. 1, p. 280. 229. Sambucus pubens Michx., var. In fruit. 230. Sambucus glauca Nutt. in Torr. & Gray, Fl. 2, p. 13. 231. Galium Aparine L., var. minor, and 232. G. trifidum L. 233. Galium triflorum Michx., var. Peculiar Western forms. Musenittm Greenei, n. sp. Acaule ; foliis omnibus e caudice apice squamoso- fere sinipliciter pinnatis angustis ; foliolis 7-9 secus rhachin apice tantum margi- natam sessilibus ambitu subovatis pinnatifido-5 - 7-lobatis pauci-dentatisque, denti- bus lobisque argutis ; scapis ultra spithamseis omnino nudis simplicissimus ; umbella brevi-radiata ; invollucellis e bracteis 3-4 subulatis flores " flavos " sub- sessiles subasquantibus ; fructu oblongo obtusissimo truncato laevi calycis dentibus ovato-subulatis submarcescentibus coronato, jugis prominulis angustissimis, vittis interjugalibus l-2magnis, sub jugis ipsis solitariis parvis. — Colorado, in the lower mountains above Golden City, in shady places, (June 24, with well-formed fruit), Rev. Edward L. Greene. The discoverer of this plant has botanized so earnestly in this region, and has sent me so many beautiful and interesting speci- mens, that I hasten to pay a well-deserved acknowledgment by affixing his name to the first actually new species which I have received from him. The root and fruits are strong-scented, in the manner of the genus, and the whole plant, as usual, is glabrous. The fruit (about 2 lines long) is peculiar in not being at all contracted at the apex, and its ribs are very thin. The absence of all roughness does not prevent me from referring the plant to Musenium, for the true M. divanca- tum (of which there is an excellent figure by Sprague in the 12th volume of the Pacific Railroad Surveys, Stevens's Expedition) is also quite smooth. 388 PROCEEDINGS OF THE AMERICAN ACADEMY 234. Galium bore ale L. : the form with a glabrous ovary. 235. Galium Littellii Oakes. Caule ltevi subsimplici vix ultra- pedali erecto ; foliis quaternis ovali-ovatis quandoque ovato-lanceolatis acutiusculis trinervibus ciliatis casterum saspius glabris ; cymulis pluri- floris longius pedunculitis paniculatis ; pedicellis omnibus longiusculis, fructiferis divaricatis ; corolla? flavidce glabra? segmentis ovatis obtusis ; fructu setis uncinatis crebris setoso. G. circcezans var. montanum Torr. & Gray, Fl. 2, p. 24. Appears identical with the White Moun- tain plant, of which few and imperfect specimens were extant, and it would seem truly distinct from G. circcezans. 236. Plectritis congesta DC. Prodr. 4, p. 461. 237. Adenocaulon bicolor Hook. Bot. Misc. 1, p. 19, t. 15. 238. Machjsranthera canescens Gray, PI. Wright ; a narrow- leaved variety, which includes Dieteria divaricata Nutt. 239. Sericocarpus rigidus Lindl., in Hook. Fl. Bor.-Am. 2, p. 14. 240. Sericocarpus Oregonensis Nutt. ; Torr. & Gray, Fl. 2, p. 103. Probably only a larger form of the preceding. 241. Aster (Calliastrum) radulinus, n. sp. This plant, which grows also in California (and is probably A. Radula Less, in Linnoea, which Nees has referred to his A. Ghilensis = A. Durandi Nutt.), is difficult to distinguish from A. conspicuus Lindl., except by the much diminished size of all the parts and the turbinate involucre. Mr. Hall's specimens vary from 5 to 15 inches in height, and the involucre is barely 4 lines long. The rays appear to be white. On the other hand it approaches A. montanus of Richardson ; but the involucre is tur- binate, its scales more imbricate and appressed, the leaves rougher, &c. 242. Aster (Orthomeris) Engelmannii Gray, var. ledophtlla. Minor, pedalis ; foliis obtusis subtus pube molli derasibili cinereis vix sesquipollicaribus ; involucri squamis sensim acuminatis. A remark- able variety, which one of the plants of Lyall's collection serves some- what to connect with the Rocky Mountain form ; but the small size of the leaves (which are very numerous) and the slender-tipped purple involucral scales are peculiar. The specimens are scanty. They were collected high up in Cascade Mountains. 243. Aster Hallii, n. sp. This is apparently a distinct and un- published species, of the Dumosi group, but requires study. 244. Aster Douglasii Lindl. : in various forms. 245. Per- haps a variety of the last, but with lax and more foliaceous involucral scales. OP ARTS AND SCIENCES : FEBRUARY 13, 1872. 389 246. Aster (Oritrophium) Sayi Nutt. herb. Near A. perigrinus, Sibiricus, and scdsuginosus. 247. Aster salsuginosus Richardson. An alpine form, scantily collected with the next. 248. Aster (Xylorhiza) alpigexus. Aplopappus ? alpigenus Torr. & Gray, Fl. 2, p. 241. It appears from these copious and beau- tiful specimens that the rays are violet-colored. The species is nearly allied to A. Andersonii Gray; and, with A. pulchelhis of Eaton (just published in the Botany of King's Exploration), we have now three subscapigerous species of this group. 249. Erigeron Bellidiastrum Nutt. 1. c. Not before reported from Oregon. 250. Erigeron glaucum Ker. Bot. Reg. 1. 10 ; Torr. & Gray, 1. c. 251. Erigeron speciosuii DC. Stenactis speciosa Lindl. Bot. Reg. t. 1577. 252. Erigeron strigosum Muhl. ; Torr. & Gray, 1. c. 253. Erigeron filifolium Nutt. ; Torr. & Gray, 1. c. 254. Erigeron decumbens Nutt. ; Torr. & Gray, 1. c. A slender form. 255. Linostris viscldiflora Hook. ; Torr. & Gray, Fl. 2, p. 234. 256. Aplopappus lanceolatus Torr. & Gray, 1. c. (at least it is Homopappus midtijlorus Nutt.), var. stricta. Resembles Pyroco- ma racemosa and panicidata, Torr. & Gray ; but achenia densely silky-canescent and shorter. Stem slender, strict, leafy, bearing 3 to 10 rather distinct spicate heads. 257. Aplopappus Hallii, n. sp. Puberulo-scaber, multicaulis; caulibus (spithamaeis et ultra ad apicem usque foliosis ; foliis lanceo- latis integerrimis apiculato-acuminatis rigidis, costa prominula ; capi- tulis racemosis primum resinosis ; involucro obconico vix semipollicari, squamis pluriseriali-imbricatis appressis lanceolatis acutis subglabris ; ligulis 7 - 10-disco 10 - 12-floro vix longioribus ; acheniis pubescenti- bus. — Specimens mostly too little developed : a species apparently quite new, connecting Ericameria with Aplopappus proper. Bluffs of Columbia River at the Dalles. 258. Solidago Virgaurea L. var. humilis, connecting with the var. alpina. 259. Solidago elongata Nutt., var. 0. Torr. & Gray, Fl. 2, p. 223. Evidently a low plant. 260. Solidago gigantea Ait. Quite like the Eastern plant. 390 PROCEEDINGS OP THE AMERICAN ACADEMY 261. Solidago occidentalis Nutt. ; in two forms. 262. Chrysopsis villosa Nutt. Forms passing into C. hispida. 263. Chrysopsis (Ammodia Nutt.) Oregana Gray, Proc. Acad. 7, p. 543. 264. Grindelia hirsuttjla Hook. & Arn. Bot. Beech, p. 147. 265. Grindelia integrifolia DC. ; Torr. & Gray, 1. c. 266. Grindelia humilis Hook. & Arn. 1. c. ; a variety with more leafy and pubescent stem. 267. Grindelia discoidea Nutt. 268. A more slender form. 269. Baccharis pilularis DC. Prodr. 5, p. 407. Found for the first time in Oregon. 270. Psilocarphus Oreganus Nutt. " A common weed." 271. A remarkably large and luxuriant form. Probably all but P. tenettus are of one species. 272. Micropus Californicds Fisch. & Meyer ; Torr. & Gray, Fl. 2, p. 265. 273. Fransenia bipinnatifida Nutt. 274. F. Hookeriana Nutt. ; Torr. &' Gray, 1. c. 275. Wyethia robusta Nutt. ; Torr. & Gray, 1. c. 276. Balsamorhiza deltoidea Nutt.; Torr. & Gray, 1. c. 277. Rudbeckia occidentalis Nutt. ; Torr. & Gray, 1. c. 278. Bidens cernua L., var. elata, Torr. & Gray ; a low form of it. 279. Gaillardia aristata Pursh ; Lindl. Bot. Reg. t. 1186.* 280. Bahia lanata Nutt. ; a slender form. 281. Lasthemia glaberrima DC. Prodr. 5, p. 664. Seldom collected, not previously in Oregon. 282. Helenium autumnale L., var. grandiflorum Torr. & Gray, 1. c. 283. Blepharipappus scaber Hook. Fl. Bor.-Am. 1, p. 316. * Ch^enactis brachypappa, n. sp. Corymboso-ramosa, tenuiter cinereo-pubes- cens, glabrescens ; foliis longius petiolatis bipinnatipartitis, segmentis linearibus obtusis ; pedunculis brevibus ; involucri squamis linearibus obtusis disco subdimi- dio brevioribus ; corollis albis, marginalibus ampliatis ; antheris semi-exsertis ; pappo simplici e paleis 4-5 quadratis subcuneatisve truncatis consimilibus corolla; tubo dimidio brevioribus (nunc fl. disci uno quandoque satis elatiore). In habit, size, &c, resembles C. stevioides ; but leaves more compound and their segments divaricate, corolla apparently pure white and only 2^- lines long, and pappus remarkably short and truncate. — Discovered by Miss Searls in the Pahra- nagat Mountains, Nevada. OF ARTS AND SCIENCES: FEBRUARY 13, 1872. 391 284. Madia (Madaria DC.) elegans Don; chiefly the form which is M. racemosa Nutt., and a depauperate slender state of it. 285. Madia (Amida Nutt.) glomerata Hook. 1. c. Includes Amida gracilis and A. hirsuta Nutt. 286. Madia (Anisocarpus) Nuttallii, Anisocarpus madioides Nutt. 1. c* 287. Madia racemosa Torr. & Gray, Fl. 2, p. 405. Madorella racemosa Nutt. 288. Madia (Harp^ecarpus) filipes. Harpcecarpus madarioides Nutt. This and the related M. exigua (Sclerocarpus exiguus Smith) form a marked section of the genus as now extended. 289. Lagophylla ramosissima Nutt. ; Torr. & Gray, Fl. 2, p. 402. 290. Achillea Millefolium L., a dwarf variety of high moun- tains. A. tomentosa Pursh. 0. Cotula australis Hook, f, Fl. N. Zeal. 1, p. 128. Strongylo- sperma DC. A few specimens, probably adventive ; but the species is spreading widely over Pacific coasts. 291. Artemisia dracunculoides Pursh ; Torr. & Gray, Fl. 2, p. 416. 292. Artemisia Canadensis Michx. ; Torr. & Gray, 1. c. 293. Artemisia Ludoviciana Nutt., var. latifolia Torr. & Gray. 294. Var. Douglasiana Eaton in Watson, Bot. King (A. Douglasiana Besser), and another form near it. 295. Artemisia discolor Dougl. in Hook, 1. c. Only the tops of the plant, and of doubtful determination. 296. Gnaphalium (Gamoceleta) purpureum L. 297. Gnaphalium palustre Nutt. 1. c. G. gossypinam Nutt. is the same plant. 298. Gnaphalium luteo-album L. G. Sprengelii Hook. & Arn. Bot. Beech. 299. Gnaphalium microcephalum Nutt. 1. c. A slender form. 300. Gnaphalium leucocephalum Gray, PI. Wright, 2, p. 99. This and the last are new to Oregon. * Madia Bolaxderi (as Anisocarpus Bolanderi, Gray, must be called in the re-arrangement of theMadioid genera) is surpassed in size of heads and rays by an allied Californian species having fertile disk-flowers, M. radiata Kellogg in Proc. Calif. Acad. 4, p. 190, Jan. 1872. 392 PROCEEDINGS OF THE AMERICAN ACADEMY 301. Antennaria margaritacea P. Br. ; an unusually small form of this species. 302. Antennaria dioica Gaertn. ; and 303. A. alpina Gaartn. : female plants of both. 304. Senecio subnudus DC. ; Ton*. & Gray, Fl. 2, p. 444. 305. Senecio fastigiatus Nutt. ; Torr. & Gray, 1. c. A pretty rare species. 306. Senecio exaltatus Nutt. Probably a mere variety of S. lugens, to which it has been referred. 307. Senecio triangularis Hook. Fl. Bor.-Am. 1. 115 ; a variety with smaller leaves and heads than the original, and with many of the upper leaves tapering to the base : wherefore it was thought to be the little-known S. serra Hook, 1. c; but that, according to Professor Oliver, has still smaller heads, and leaves gradually narrowed to the base. 308. Arnica latifolia Bongard. A. Menziesii Hook. Fl. Bor.- Am. 1, t. 111. In various, mostly small, forms. 309. Arnica amplexicaulis Nutt. ; Torr. & Gray, 1. c. Some of the specimens tall and remarkably leafy. 310. Cirsium edule Nutt. 311. C. remotifolium DC.; Torr. & Gray, 1. c. ; not well named. 312. Cirsium undulatum Nutt. : Torr. & Gray, 1. c. 313. Calais laciniata Gray, in Bot. Whippl. p. 57. Scorzonella Nutt. ; Torr. & Gray, Fl. 2, p. 470. 314. Apargidium boreale Torr. & Gray, Fl. 2, p. 474. 315. Macrorhtnchus heterophyllus Nutt. ; Torr. & Gray, 1. c. Small and pubescent form, with outer achenia inclined to have undulated wings, as in Nuttall's description. 316. A small, less pubes- cent form. 317. Larger form ; achenia merely ribbed. 318. Macrorhtnchus Lessingii Hook. & Arn. A" small form: root obviously not annual. 319. Macrorhtncus laciniatus Torr. & Gray, 1. c. ; a slender form, with finely cut leaves. 320. A larger form, answering to var. longifolius Toit. & Gray, 1. c. 321. Macrorhtncus elatus Torr. & Gray, 1. c. : form with broad merely pinnatifid-incised leaves. 322. Stephanomeria paniculata Nutt. ; Torr. & Gray, 1. c. 323. Hieracium Scouleri Hook. Fl. Bor.-Am. 1, p. 298. 324. Hieracium triste Willd. H. gracile Hook. Fl. Bor.-Am. 1. c- OF ARTS AND SCIENCES : FEBRUARY 13, 1872. 393 325. Hieracium albiflorum Hook. Fl. Bor.-Am. 2, p. 297. 326. HlERACIUM UMBELLATUM L. ; Hook. 1. C. 327. Malacothrix crepoides Gray, in Pacif. R. R. Expl. 12, p. 49. 328. Mulgedium pulchellum Nutt. ; Ton*. & Gray, Fl. 2, p. 497. 329. Mulgedium leucoph^ecm DC. ; Torr. & Gray, 1. c. 330. Downtngia elegans Torr. (Clintonia elegans Lindl.) Var. COrymbosa. CUntonia corymbosa DC. Prodr. 7, p. 347. 331. Heterocodon rariflorum Nutt. in Trans. Amer. Phil. Soc. 8, p. 255. 332. Specularia perfoliata A. DC. Dysmicodon Nutt. 1. c. 333. Githopsis specularioides Nutt. 1. c, mixed with 334. Var. HIRSUTA, Nutt. 335. Campanula Scouleri Hook. Fl. Bor.-Am. 2, p. 28, t. 125. 336. Vaccinium ovatum Pursh ; Lindl. Bot. Reg. t. 1354. In fruit. 337. Vaccinium myrtilloides Hook. 1. c. (var. macrophyl- lum), not of Michx. 338. Vaccinium parvifolium Smith ; Hook. 1. c. 1. 128. In fruit. 339. Vaccinium uliginosum L. In fruit. 340. Vaccinium cjespitosum Michx., var. angustifolium. V. cuneifolium Nutt. herh. A fine stock of specimens, in fruit, of a Vac- cinium apparently common in the region, which at first sight seems distinct enough from V. ccespitosnm, by its taller and bushy stems and narrower (in these specimens oblanceolate) leaves ; but the two are connected by intermediate forms. I should take it to be V. salicinum of Charaisso, except that he describes the leaves of the Unalaschka plant as quite entire. 341. Arbutus Menziesii Pursh, Hook. 1. c. In fruit. 342. Arctostaphylos -tomentosa Dough; Hook. 1. c. p. 130. In fruit. 343. Arctostaphylos pungens HBK. ; Hook. Bot. Mag. t. 3027. 344. Arctostaphylos Uva-ursi Spreng., var. The large West- ern form, with mature fruit. 345. Gaultheria Shallon Pursh, Fl. 1, p. 284, t. 12. 346. Gaultheria Myrsinites Hook. 1. c. t. 129. Mostly a large form, in fruit. 347. Menziesia ferruginea Smith, Ic. t. 56 ; a variety of M. globularis Salisb. VOL. VIII. 50 394 PROCEEDINGS OF THE AMERICAN ACADEMY 348. Ledum glandulosum Nutt. in Trans. Am. Phil. Soc. 1. c. In fruit. 349. Rhododendron Californicum Hook. Bot. Mag. t. 4863. Flower and fruit. 350. Rhododendron albiflorum Hook. Fl. Bor.-Am. 2, p. 43, t. 133. 351. Pyrola minor L. ; Hook. Fl. Bor.-Am. 2, p. 45. 352. Pyrola bracteata Hook. 1. c. Specimens so well marked that one would think the species a very good one. 353. Pyrola picta Smith ; Hook. 1. c. In fruit. 354. Pyrola chlorantha Swartz ? With ripe fruit only ; a remarkable form, if of this species, with small oval leaves. 355. Chimaphila umbellata Pursh ; Hook, 1. c. 356. Chimaphila Menziesii Hook. 1. c. t. 138. 357. Pleuricospora fimbriolata Gray, Proc. Am. Acad. 7, p. 368. A few specimens of this most interesting plant, gathered in deep woods, June 30, just coming into blossom. Plant said to have the taste of Polygala Senega. The short spike is at first nodding. 0. Allotropa virgata Torr. & Gray, 1. c. A single specimen of this rare plant only collected. 358. Dodecatheon Meadia L. var. ; one of the small Western forms. 359. Trientalis Europ^ea L., var. latifolia, T. latifolia Hook. 1. c. 360. Var. arctic A, T. arctica Fischer. 361. Centunculus minimus L. var. G lanceolatus Michx. Not seen before west of the Rocky Mountains. 362. Plantago Patagonica, Jacq. var. gnaphalioides Gray, Man. ed. 5. 363. Utricularia vulgaris L. 364. Phelip^ea pinetorum Gray, Proc. Am. Acad. 7, p. 371. Orobanche pinetorum Geyer. 365. Collinsia grandiflora Lindl. Bot. Reg. t. 1107; Hook. 1. c. 366. Var. nana : spithamaea, ramosior, floribunda. (Of G. par- vijlora Dougl. only two or three specimens were collected.) 367. Tonella collinsioides Nutt. in DC. Prodr. 10, p. 593 (sub Gollinsla tenella) ; Gray, Proc. Am. Acad. 7, p. 378. 368. Pentstemon Menziesii Hook., var. Lewisii ; very dwarf form in flower. 369. Larger form, in fruit. 370. Pentstemon triphyllus Dougl. ; Lindl. Bot. Reg. t. 1245. OF ARTS AND SCIENCES : FEBRUARY 13, 1872. 395 371. Pentstemon Richardsonii Dougl. Lindl. Bot. Reg. t. 1121. 372. Pentstemon diffusus Dougl. ; Lindl. Bot. Reg. t. 1132 * 373. SCROPHULARIA NODOSA L. 374. Mimultjs luteds L. ; the large form. 375. Small-flowered form of the same. 376. Mimulus moschatus Dougl.; Lindl. Bot. Reg t. 1118. 377. Mimulus floribundus Dougl. ; Lindl. Bot. Reg. t. 1125. 378. Mimulus alsinoides Dougl. ; Benth. in DC. Prodr. 10, p. 373. A well-marked species, which I have not before received, mostly- more luxuriant specimens than Douglas's plant appears to be, and none of the peduncles " much longer than the leaves," most of them barely equalling the leaf, but then the petiole is very slender. 379. Gratiola ebracteata Benth. in DC. Prodr. 10, p. 595. * The three following species were in Miss Searls's collection made in the Pahranagat Mountains, S. E. Nevada : — Pentstemon Palmeri Gray, Proc. Am. Acad. 7, p. 379. Prom the dried spe- cimens and from the report of Mr. Watson this should be " an exceedingly hand- some species," but in cultivation here thus far it is not quite so showy as might have been expected : the flowers are elegant, but almost white. Penstemon c^espitosus Nutt., var. ? incands : foliis brevioribus sursum ssepius latioribus (obovato-spathulatis) cum sepalis ovato-oblongis pube creberrima canescentibus ; pedunculis brevibus unifloris erectis. Very likely a distinct species. Pentstemon Eatoni, n. sp. Quoad folia et inflorescentia virgata P. barbato simillimus, sed pedunculis pedicillisque brevioribus P. centranthifolii ; corolla (coc- cinea raro alba) sensim ampliata imberbi labiis brevibus erectis parum ina?qualibus P. imberbis modo, sed antherse loculis divergentibus, filamento sterili hinc barbu- lato. — P. centranthifolius S.Watson, Bot. King, p. 219, non Benth. — Of this species I received a flower several years ago, from some now forgotten source, and referred it to P. imberbis: consequently I did the same upon receiving a specimen collected in Arizona by Dr. E. Palmer. Mr. Watson, who, in company with Pro- fessor Eaton, found it abundantly in Provo Canon, Wahsatch Mountains, referred it to the Californian P. centranthifolius. But, besides other distinctions, it has the characteristic anthers of the Elmigera group, to which it adds a third species. The cells of the anther diverge widely, and are much larger than those of P. im- berbis : their dehiscence stops well short of the apex. Upon this the character of the section rests ; for in this species, as in the Mexican one just mentioned, the lower lip of the corolla is not at all decurved, apparently not even patent. Speci- mens have been distributed under the name of P. miniatus, Lindley's plant of that name, in the last volume of the Botanical Register, having been overlooked. As it is likely to be brought into the gardens, and perhaps to be as great a favorite as its relatives, P. barbatus and the variety Torreyi, I take pleasure in having it bear the name of Professor D. C. Eaton, one of its discoverers. 396 PROCEEDINGS OF THE AMERICAN ACADEMY 380. Ilysanthes gratioloides Benth. in DC. 1. c. Not before found west of the Rocky Mountains. 381. Veronica Americana Scbweinitz, Benth. in DC. 1. c. 382. Veronica scutellata L. 383. Veronica alpina L. Sparingly collected. 384. Veronica serptllifolia L. Apparently indigenous. 385. Synth yris reniformis Benth. 1. c. Wulfenia reniformis Hook. Fl. Bor.-Am. 2, t. 171. Fine specimens, both in flower and fruit, of this rare plant. 386. Orthocarpds pusillus Benth. in DC. Prodr. p. 535. Col- lected in Oregon also by Nuttall and in Wilkes's Expedition. 387. Orthocarpus bracteosus Benth. 1. c. Corolla bright purple. 388. Orthocarpus hispidus Benth. 1. c. Large form, and slen- der specimens, the latter, I fear, not distinct from 0. attenuatus Gray. 389. Castilleia parviflora Bongard, the G. hispida Benth. 390. Castilleia pallida Kunth, var. miniata Gray in Sill. Jour. Two forms. 391. Pedicularis racemosa Dougl. in Hook. Fl. Bor.-Am. 2, p. 108. 392. Pedicularis Gr. H. M. t I have substituted the English for the native name of the tribes. — l. h. m. | It is important to remember that the children take the mother's second or " animal " name. Also that they take the class-name which is given to the chil- dren of their mother by her proper husband, — that is, by her husband according to the laws given in Memo. A. Thus, the children of Ippai and Ippata are Kumbo and Buta, as also are the children of Ippata by her proper husband, Kubbi. There seems to be some little uncertainty about the pronunciation of the clas3 OF ARTS AND SCIENCES : MARCH 12, 1872. 437 Hence I deduce the following LAWS OF DESCENT. 1 The Children of Are Male. Female. Memo. A. Murri-Iguana and Buta-Emu Ippai-Emu Ippata-Emu 2 2 " " " " -Blacksnake Ippai-Blacksnake Ippata-Blacksnake 2 3 " '' '' Mata-Kangaroo Kubbi-Kangaroo Kapota-Kangaroo 4 4 Murri-Kaugaroo and Buta-Emu Ippai-Emu Ippata-Emu 2 5 " " " " -Blacksnake Ippai-Blacksnake Ippata-Blacksnake 2 6 " " " Mata-Iguana Kubbi-Iguana Kapota-Iguana 4 7 Kumbo-Emu " " -Iguana Kubbi-Iguana Kapota-Iguana 4 8 " '' " " -Kangaroo Kubbi-Kangaroo Kapota-Kangaroo 4 9 " " " Buta-Blacksnake Ippai-Blacksnake Ippata-Blacksnake 2 10 Kumbo-Blacksnake and Mata-Iguana Kubbi-Iguana Kapota-Iguana 4 11 " " " " -Kangaroo Kubbi-Kangaroo Kapota-Kangaroo 4 12 " " " Buta-Emu Ippai-Emu Ippata-Emu 2 13 Ippai-Emu and Kapota-Iguana Murri-Iguana Mata-Iguana 1 14 " " " " -Blacksnake Murri -B lacksnake Mata-Blacksnake 1 15 •! " " Ippata-Blacksnake Kumbo-Blacksnake Buta-Blacksnake 3 10 Ippai-Blacksnake and Kapota -Opossum Murri-Opossum Mata-Opossum 1 17 " " " .Ippata-Emu Kumbo-Emu Buta-Emu o O 18 " Bandicoot and Kapota-Kangaroo Murri-Kangaroo Mata-Kangaroo 1 19 " " " Ippata-Blacksnake Kumbo-Blacksnake Buta-Blacksnake 3 20 Kubbi-Opossum and Ippata-Emu Kumbo-Emu Buta-Emu 3 21 " " " Kapota-Iguana Murri-Iguana Mata-Iguana 1 22 ' ' Kangaroo and Ippata-Blacksnake Kumbo-Blacksnake Buta-Blacksnake 3 23 " " " Kapota-Iguana Mum-Iguana Mata-Iguana 1 24 " -Iguana and Ippata-Bandicoot Kumbo- Bandicoot Buta-Bandicoot 3 25 " " " Kapota-Kangaroo Murri-Kangaroo Mata-Kangaroo 1 The rule, that the children take the mother's second name, gives us two instances of names not recorded in Mr. Ridley's list of the sub- divisions, namely, sixteen Murri and Mata-Opossum, and twenty-four Kumbo and Buta-Bandicoot. There must be something wanting here* as we find no provision for the " privileged " marriage of these names. I think Ave may take it for granted that there is a third subdivision of all the classes, as follows : — 1. Murri and Mata subdivide into 1. Iguana. 2. Kangaroo. 3. Opossum. 2. Kumbo and Buta " " 1. Emu. 2. Blacksnake. 3. Bandicoot. For, since there are Ippai-Bandicoot and Ippata-Bandicoot, the mother of the two, that is, Buta, must also be Bandicoot, because the children take the mother's second, or tribal name. And, there being a Buta-Bandicoot, there must also be a Kumbo-Bandicoot, because each of all these pairs takes the same second name for both male and female. So also with Murri and Mata-Opossum. Hence we get six classes, each containing four names, consisting of two pairs of brothers and sisters. names. Mr. Eidley tells me that some of the natives whom he questioned pro- nounced Kapota, Kubbotha ; Mata, Matha, etc. I retain Kapota for uniformity's sake. 438 PROCEEDINGS OF THE AMERICAN ACADEMY 1. Emu (Dinoun) Ippai and Ippata: Kumbo and Buta. 2. Iguana (Duli) Murri " Mata : Kubbi " Kapota. 3. Kangaroo (Murriira) Murri " Mata : Kubbi " Kapota. 4. Blacksnake (Nuari) Ippai " Ippata: Kumbo " Buta. 5. Opossum (Muta) Murri " Mata : Kubbi " Kapota. 6. Bandicoot (Bilba) Ippai " Ippata: Kumbo " Buta. Inferences. 1. From these tables it is evident that a man may cohabit with his half-sister by the father's side, though not with his full sister, or with the half-sister by the mother's side. That this is an innovation on the system explained in Memo. A may perhaps be inferred from the fact that the children of such a connection take the class-names which they would have had, had their father's been of the usual class. 2. Persons having the same animal name may not intermarry. 3. In the six classes arranged under the animal names, it is worthy of note that the names of one pair are those of the children of the wo- man of the other pair. Thus the Emus are Ippai and Ippata, Kumbo and Buta. Now Ippata is the mother of Kumbo and Buta ; and Buta is the mother of Ippai and Ippata (see Laws of Descent, Memo. C). Mr. Ridley informs me that Murri has a third distinguishing name, which is that of his father's grave (see Memo. B). He also gives me another most important fact, namely, that there are separate terms for brother or sister according to seniority. Thus : — Daiadi, Elder Brother. Boadi, Elder Sister. Gullami, Younger Brother. Burri, Younger Sister. These are the words used by a male. Sydney, August 7, 1871. Note. — If the divisions caused by the animal names be tribal, then is it evident that the child is of the mother's tribe, as among the North American Indians and the tribes of Central Africa, because the child always takes the mother's animal name. Six hundred and forty-third Meeting. April 9, 1872. — Monthly Meeting. The President in the chair. The President announced the death of Professor Trendelen- OF ARTS AND SCIENCES : MAY 14, 1S72. 439 berg, Foreign Honorary Member ; of Mr. S. F. B. Morse, As- sociate Fellow ; and of Professor Daniel Treadwell, Resident Fellow of the Academy. The President read a note from Mr. John Noble, announcing a large legacy to the Academy by Professor Treadwell. On the motion of Dr. E. H. Clarke, it was voted that the President be authorized to express to the executors and to Mrs. Treadwell the grateful sentiments of the Academy in accepting this gift. The Recording Secretary read a report of the Committee appointed to consider a suggestion to change the rooms of the Academy. It was voted that this report be accepted, and that the Com- mittee be continued until the Annual Meeting. Mr. Alexander Agassiz made a statement of some of the results obtained by the Hassler expedition. Dr. J. B. S. Jackson exhibited some Mexican seeds which moved when laid on a heated plate, because of the presence on their interior of small living larva?. Six hundred and forty-fourth Meeting. May 14, 1872. — Monthly Meeting. The President in the chair. On account of the absence of Mr. Theodore Lyman in Europe, the President nominated Mr. H. G. Denny to fill his place on the Committee to audit the Treasurer's account. The President read a letter from the Vice-President, declin- ing to be a candidate for re-election. Professor W. A. Rogers read a paper on the observations already made with the large transit circle of the Cambridge Observatory. Professor H. L. Eustis presented a communication on the truss constructed for the roof of the building called the Coliseum, in Boston. 440 PROCEEDINGS OF THE AMERICAN ACADEMY Six hundred and forty-fifth Meeting. May 28, 1872. — Annual Meeting. The President in the chair. The Treasurer presented his report, which was accepted and ordered to be entered in the records. The report of the Rumford Committee was read and accepted. Professor Joseph Lovering read the report of the Committee on Publication, which was accepted and ordered to be entered in the records. The Librarian presented his report, which was accepted and ordered to be entered in the records. The President announced the death of Professor Albert Hop- kins, of Williamstown, Resident Fellow of the Academy. The following gentlemen were elected members of the Academy : — J. H. W. Dollen, of Pulkowa, to be a Foreign Honorary Member in Class I., Section 2. William Thomson, of Glasgow, to be a Foreign Honorary Member in Class I., Section 4. Theodor Mommsen, of Berlin, to be a Foreign Honorary Member in Class III., Section 3. James Martineau, of London, to be a Foreign Honorary Member in Class III., Section 1. Benjamin Jowett, of Oxford, to be a Foreign Honorary Member in Class III., Section 2. Karl F. Rammelsburg, of Berlin, to be a Foreign Honorary Member in Class II., Section 1. William T. Roepper, of Bethlehem, Pa., to be an Associate Fellow in Class II., Section 1. Mr. H. H. Hunnewell, of Wellesley, to be a Resident Fellow in Class II., Section 2. Dr. H. P. Bowditch, of Boston, to be a Resident Fellow in Class II., Section 4. The annual election resulted in the choice of the following officers : — OF ARTS AND SCIENCES: MAY 28, 1872. 441 Asa Gray, President. Charles Francis Adams, Vice-President. Joseph Lovering, Corresponding Secretary. Edward C. Pickering, Recording Secretary. Edmund Quincy, Treasurer. Edmund Quincy, Librarian. Council. Thomas Hill, Josiah P. Cooke, Jr., \ of Class I. John B. Henck, Alexander Agassiz, Jeffries Wyman, \ of Class II. Chares Pickering, Robert C. Winthrop, George E. Ellis, \ of Class III. Andrew P. Peabody, Rumford Committee. Morrill Wyman, James B. Francis, Wolcott Gibbs, John M. Ordway, Josiah P. Cooke, Jr., Stephen P. Ruggles, Edward C. Pickering. Committee on Finance. Asa Gray, , ex officio Edmund Quincy, Thomas T. Bouve. The other Committees were appointed, on the nomination of the President, as follows : — Committee of Publication. W. W. Goodwin, Jeffries Wyman, John Trowbridge, vol. viii. 56 442 PROCEEDINGS OF THE AMERICAN ACADEMY Committee on the Library. H. G. Denny, J. D. Runkle, Jules Marcou. Auditing Committee. Theodore Lyman, H. G. Denny. Six hundred and forty-sixth Meeting. June 4, 1872. — Adjourned Annual Meeting. The President in the chair. Dr. Maack gave a description of the explorations he has been making on the Isthmus of Panama. Professor N. S. Shaler presented a communication on the topography of Narragansett Bay. The Annual Report of the Council was presented by Profes- sor Joseph Lovering, the Corresponding Secretary, and ordered to be printed. Since the last report of the Council the following additions, by elec- tion, have been made to the membership of the Academy : — Francis L. Pourtales, of Cambridge, to be a Resident Fellow in Class II., Section 3. Robert Amory, of Brookline, to be a Resident Fellow in Class II., Section 3. R. W. Hooper, of Boston, to be a Resident Fellow in Class II., Section 4. J. B. Perry,* of Cambridge, to be a Resident Fellow in Class II., Section 1. S. P. Sharpies, of Cambridge, to be a Resident Fellow in Class I., Section 3. G. R. Baldwin, of Quebec, to be a Resident Fellow in Class L, Sec- tion 4. H. G. Denny, of Boston, to be a Resident Fellow in Class III., Sec- tion 2. John Trowbridge, of Cambridge, to be a Resident Fellow in Class I., Section 3. * Printed J. B. Pettee, by mistake, on page 335. OF ARTS AND SCIENCES: JUNE 4, 1872. 443 J. A. Allen, of Cambridge, to be a Resident Fellow in Class II., Section 3. William H. Pettee, of Cambridge, to be a Resident Fellow in Class II., Section 1. John K. Paine, of Cambridge, to be a Resident Fellow in Class III., Section 4. Edwin P. Seaver, of Cambridge, to be a Resident Fellow in Class I., Section 1. Charles F. Dunbar, of Cambridge, to be a Resident Fellow in Class III., Section 3. "William A. Rogers, of Cambridge, to be a Resident Fellow in Class I.. Section 2. Samuel Johnson, of New Haven, to be an Associate Fellow in Class I., Section 3. Charles A. Young, of Hanover, N. H., to be an Associate Fellow in Class I., Section 2. Leo Lesquereux, of Columbus, Ohio, to be an Associate Fellow in Class II., Section 2. Since the last annual meeting, the Academy has lost by death nine Foreign Honorary Members, four Associate Fellows, and three Resi- dent Fellows. George Grote died in London, June 18, 1871. He was born November 17, 1794, at Beckenham, Kent, and received his early edu- cation at the Charterhouse School. At the age of sixteen he entered the banking-house of Prescott, Grote, & Co., in London, of which his grandfather had been the founder, and in which his father was still a partner. It was a strange fate which sent to a bank rather than to the university a young man of ample means, already inspired with a love of ancient learning, who was destined to revolutionize the opinions of scholars on important points of Grecian history, antiquities, and philos- ophy, and to make himself a recognized authority on these subjects, not merely at home, but even among the most learned scholars of the Con- tinent. Considering the period at which he would have entered aca- demic life, we may, perhaps, doubt whether the fate that guided him was not propitious to the cause of learning. His own studies, conducted without teachers, and perhaps not without a little willing opposition to the traditions of English scholarship, led him into the purer and freer air and to the wider views of German learning, at a time when he might have found Oxford and Cambridge still singing the old song, 444 PROCEEDINGS OF THE AMERICAN ACADEMY " The Germans at Greek are sadly to seek." It must, indeed, have been no ordinary enthusiasm that impelled a young man, under such circumstances, to undertake what is perhaps the most thorough study of the whole Greek literature — poets, historians, and philosophers — ever accomplished by a self-educated man in modern times. It was not, as has sometimes been thought, his parliamentary experience that caused him to study the constitution of ancient Athens ; nine years before he entered public life we find him preparing for his History of Greece, the first volume of which, however, was not published until 1846, twenty-three years later. The original research and the profound learning which this work displayed, even in its earliest volumes, testify to long years of hard and patient study. There is no easy or short road to learning of this nature. In 1832, his literary labors were interrupted by his election to the House of Commons as member for the city of London. He remained in Parliament nine years, and distinguished himself especially by what was called his " an- nual motion " for the ballot. In his later years, when his favorite scheme was brought into Parliament as a ministerial measure, he could well afford to smile at the ridicule with which it was once greeted on all sides. His public life delayed, perhaps fortunately, the publication of his History. In the mean time, Thirlwall's " History of Greece " appeared, which took an immense step in advance of the Tory views of Mitford, but did not aim at such an overthrow of English opinions and prejudices about Greek democracy as Grote contemplated. That literary men, even out of England, were expecting Grote's History with interest, appears from a letter of Niebuhr (who died in 1831), in which he advised a friend to translate the coming work into German as soon as it should be published. In the years 1846- 1856 were pub- lished the twelve volumes of Grote's " History of Greece." Nine years later was published his other important work, " Plato, and the other Companions of Sokrates," in three volumes. If his History astonished scholars by the intimate acquaintance of a self-educated man with the Greek historians and poets, his Plato called forth new surprise, that a man so pre-eminently practical as Mr. Grote, whose sober common-sense was one of his great virtues as an historian, should prove equally fa- miliar with the great idealist of antiquity, whose whole mode of thought and reasoning was in constant conflict with his own. It often seems, indeed, as if the pleasure of refuting the many absurd theories which were current about Plato and his works made up to Mr. Grote for the OF ARTS AND SCIENCES : JUNE 4, 1872. 445 patient toil by which he must have mastered many elaborate and often tedious arguments of the Platonic Socrates, leading to conclusions the furthest possible removed from his own sympathies. At the time of his death, he was preparing for the press a similar work on Aristotle ; and it can hardly be doubted that the same sagacity, joined with a deep- er sympathy with the author and the subject, would have made this the crowning work of his life. It remains to be seen how far the posthumous work, now daily expected, will realize the expectations of scholars. It was not to be expected that the graduate of a London bank, who had known no higher institution of learning than the Charterhouse School, should be as familiar with all the nice details of classical schol- arship as if he had been trained at a university. But no modern histo- rian of Greece was ever more thoroughly imbued with the whole spirit of classical antiquity, or ever viewed the field from a more commanding position. Although his views have often been violently attacked, and especially his defence of Athenian democracy in its least defensible points, his writings have yet produced a gradual change in the feelings of nearly all scholars towards even the weaknesses of Athens. No one, for example, will ever again attack the Sophists indiscriminately as a corrupt sect of philosophers, with a common creed and a common pur- pose of corrupting the youth of Athens. Even Cleon, that coarsest product of Attic democracy, will perhaps fare a little better at the hands of subsequent historians for having found a friend in Mr. Grote ; it may be doubted, however, whether the historian would not have understood Cleon and his class better if he had spent nine years in Congress instead of in Parliament. Perhaps nothing in Grote's works has been so severely criticised as his defence of ostracism ; and yet it was defended on nearly the same grounds by Aristotle, when it was almost as much a thing of the past as it now is. During the later years of his life, Mr. Grote was Vice-Chancellor of the University of London, and one of the Trustees of the British Mu- seum. It is understood that he was offered a peerage about two years before his death, and declined it on the ground that he must devote the remainder of his strength to his work on Aristotle. The long list of honorary titles which have been gradually added to the simple " George Grote, Esq.," which appears on the title-page of his History, show the respect in which he was held by scholars at home and abroad ; and the impressive funeral service at his grave in Westminster Abbey, in which the highest officers of state appeared as mourners, was a fitting testi- 446 PROCEEDINGS OF THE AMERICAN ACADEMY monial to the modest scholar, who had done more than any other man of the present generation to exalt the name of England in the depart- ment of ancient learning. (August) Immanuel Bekker was born in Berlin, May 21, 1785. He studied at the gymnasium of his native city, and in 1803 he entered the University of Halle, where the great founder of the modern school of German classical philology, Friedrich August Wolf, was at the height of his reputation as a lecturer. Wolf was not long in discover- ing the ability and the persevering patience of his scholar, and the rela- tions between the master and the pupil soon became intimate. Bekker was retained at Halle, after his regular term of study was ended, as assistant to Wolf in the Philological Seminary. While he was a stu- dent, he wrote his review of Heyne's smaller edition of the Iliad, which appeared in the Jena Allgemeine Litteratur Zeitung, in 1806, and was afterwards reprinted, in 1863, in Bekker's Homerische Blatter. The boldness with which he attacked the weak points in Heyne's work is in strange contrast with the gentleness which distinguished the great critic in his later years ; and, on reprinting the review fifty-seven years afterwards, Bekker apologizes for the "jugendliche Keckheit " of his first essay, the tone of which (he says) was approved and encouraged by his master and patron, Wolf. As to Heyne, he confesses that, as a young man of twenty, he knew him only as a grammarian, " den viel- seitigen von Einer, und der schwachen, Seite." His review of Wolf's Homer, published in 1809, in a more respectful but decidedly critical spirit, did not meet the same unqualified approval of his master, if we may judge by a note of Wolf, which Bekker quotes in the preface to the Homerische Blatter. In 1810, Wolf was called from Halle to a professorship in the new University of Berlin ; and Bekker soon followed, through Wolf's influ- ence, as extraordinary professor. In the very year of his appointment, Bekker received a leave of absence, to enable him to begin the labor to which no small part of his active life was to be devoted, that of col- lating classic manuscripts. He went first to Paris, and the earliest fruit of his labors appeared in 1811, in the publication of the important grammatical work of Apollonius Dyscolus, De Pronomine, never be- fore printed. In 1812, he was appointed to a full professorship at Ber- lin, which office he held fifty-nine years, until his death in June, 1871. Bekker spent, according to his own estimate, seventeen years of his life OF ARTS AND SCIENCES : JUNE 4, 1872. 447 in collating manuscripts in France, England, Germany, and Italy ; and the present generation of classical scholars are, perhaps, too little aware of the debt of gratitude which they owe to this quiet, indefatigable worker. It would be easier to enumerate the Greek authors who were not edited by Bekker than those who were. The shelves of every clas- sical library will soon supply more names than any two other editors could claim ; and the critical apparatus with which his editions of the most important authors were enriched has been of more permanent value than any exegetical commentary. We may mention his editions of Plato (1816, 1817), of Thucydides (1821), of the Attic Orators (Ox- ford, 1822, 1823 ; Berlin, 1823, 1824), of Herodotus (1826), of Aris- tophanes (1829), of Aristotle (Berlin, 1831 - 1836 ; Oxford, 1837)^ and of Homer (1843, Iliad ; 1858, Iliad and Odyssey). We may men- tion, among his editions of Latin authors, those of Livy (1829, 1830) and of Tacitus (1831). In many cases, the labors of Bekker have served, or are still serving, as a basis for later scholars to determine the authentic text. A striking instance of this may be seen in Bekker's later edition of Demosthenes (1854), in which a text is given which differs on every page from that of the Oratores Attici (1823), but which could never have been determined with such certainty without the careful collation of fifteen manuscripts which the earlier work con- tains. It needed the experience of the earlier edition to show Bekker himself the true use of his immense material, and to determine the principles of criticism on which the text of Demosthenes is now by uni- versal consent established with as great certainty as we can ever hope to attain in the text of a classic author. Bekker seems never to have distinguished himself as a public lec- turer at Berlin in any degree proportionate to his fame and merit as a scholar. He preferred his more quiet work in the library to giving instruction to classes ; and students who knew him only as a professor (if any such there were) could never have appreciated his profound scholarship and his critical sagacity. His dislike of long commentaries and prolegomena often kept him utterly silent when he alone could have spoken with authority ; and when he broke his rule, and wrote a note or a preface, his brevity was often more tantalizing than his silence. His conversation was marked by the same laconic brevity as his writ- ings ; and the remark of an intimate friend, " Er schweigt in sieben Sprachen," was one of the commonplaces of Berlin society. Notwith- standing his retiring disposition, his company was eagerly sought by the 448 PROCEEDINGS OF THE AMERICAN ACADEMY most cultivated scholars, and his hospitable house in Berlin was one of their most frequent resorts. No scholar, perhaps, ever lived, at least in Germany, who had stronger friends, greater admirers, or fewer ene- mies than Immanuel Bekker. Sir Roderick Impey Murchison died on the 22d of October, 1871, in his eightieth year. In his death the world has lost one who, in the popular estimation, not only shared with Lyell the sceptre of dominion among British geologists, but held, conjointly with him, a sort of uni- versal empire. The labors of both of these men have extended beyond their country, and they have made not only Europe but America trib- utary to their reputation. Of these two, Lyell still remains, and, as his latest work, published in 1870, shows, retains unimpaired that clear- ness of style and that rare philosophic acumen which have made his masterpiece the Principia of modern geology, — a classic which future generations will study with the same delight as the present. Very different have been labors, and unlike the gifts of Murchison. Like Lyell and his distinguished predecessors, the earlier prophets of the Scottish school of geology, — Hutton and Playfair, — Murchison was a Scot, and was proud of his ancient Celtic pedigree. It is characteristic of the man, that, a few years since, he raised in the Highlands of his native land a monument to one of his Jacobite ancestors, who had sacrified fortune and life in the cause of the exiled Stuarts. The father of Sir Roderick was a physician who, in the last century, amassed a fortune in India, where he was a friend of the noted Elijah Impey. Marrying soon after his return, he purchased an estate at Tarradale in Rosshire, where his son, the subject of the present notice, was born in 1792, and was early left an orphan by the death of his father. Like many others who have gained an honorable name in British geology, Murchison had not the advantage of a university training; but, after some years at a grammar-school in Durham, entered the army at the age of sixteen, and was soon ordered to Spain, where he served with distinction under Wellington ; carrying the colors of his regiment in a desperate charge at Vimieira, and being left wounded on the field at Corunna. At the close of the war, he left the service, a captain of dragoons, and, returning to England, married in 1815. Possessed of wealth and social position, he seems for the next few years to have given himself to fox-hunting and the usual amusements of his class ; OF ARTS AND SCIENCES : JUNE 4, 1872. 449 and he is said to have been first led to study by his wife's fondness for natural history. Meeting in 1818 with Sir Humphry Davy, he was induced, by his advice, to follow the lectures of the Royal Institution in London : and shortly afterwards placed himself under the tuition of Professor Richard Phillips, the well-known mineralogist. The atten- tion of Murchison was soon drawn to the study of geology, then taking shape from the labors of Cuvier, Buckland, and Conybeare ; but it was not until 1825 that he made his first contribution to the science, in a paper on the geology of parts of Sussex and the adjoining counties. Already he had formed an accmaintance with William Smith, who, by his careful studies of organic fossils and their stratigraphical relations, had laid the foundations of British geology. It was also his great good fortune to know Sedgwick, then commencing his laborious career, who became for many years his friend and companion in the field, and with whom, in 1827, he visited the Highlands of Scotland. In 1828, Murchison accompanied Lyell in a journey to the volcanic dis- tricts of central France, to northern Italy and the eastern Alps ; and to the latter region he returned and labored with Sedgwick in 1829 and 1830. In 1831, he and Sedgwick began simultaneously, in different districts, the task of discovering the geological succession of the older fossiliferous rocks of Wales, of which they first gave the definite results to the world in 1834 and 1835. The fruits of Murchison's labors in this field were published in 1838-39, in two magnificent volumes, entitled " The Silurian System," and dedicated to his friend Sedgwick. Mean- while, in 1836 and 1837, the two friends labored together in the investi- gation of the geology of Cornwall and Devonshire, and in 1839 extended their studies to the Rhenish country and to the Hartz Mountains, publishing conjointly their results. In 1840, Murchison was invited to Russia by the Czar, and there spent two or three years with De Verneuil and Von Keyserling in investigating the geology of that country. The results of these labors, extending over the greater part of European Russia, appeared in 1845, as the joint production of Murchison and his fellow-workers. He sub- sequently made repeated visits for the purpose of geological investiga- tion to Scandinavia, Germany, and the Alps ; and in 1856, in conjunction with Professor Nicoll, published a valuable geological map of Europe. In 1854 appeared the first edition of his well-known book, Siluria ; which, besides a revision of his work done twenty years before, in the Silurian region of Great Britain, contained an excellent summary of vol. viii. 57 450 PROCEEDINGS OF THE AMERICAN ACADEMY the paleozoic geology of Europe. Of this volume four editions have appeared, the last in 1867, much augmented, and in great part re- written. In 1855, on the death of Sir Henry de la Beche, Murchison was named in his place as director-general of the Geological Survey of the United Kingdom, a post which he resigned not long before his death. His activity as a geological investigator still continued. From 1855 to 1860 he turned his attention towards the Highlands of Scotland ; and in 1861 published, in connection with Professor Archibald Giekie, a geological map of Scotland, with an introductory sketch, which is a valu- able contribution to the literature of the subject, and sets forth briefly the great differences of opinion which had arisen between Murchison and his friend Professor Nicoll, as to the geological age of the crystalline schists of the Scottish Highlands. Besides the works already noticed, Murchison is said to have published during his long scientific career, extending over forty-five years, more than one hundred memoirs by himself on British and Continental geology, besides upwards of twenty in connection with other investigators. The secret of his scientific success is to be found, in great part, in his methodical habits and his untiring industry. The observations of each day in the field were written out fully at night, and, while in town, the early hours of the morning were devoted to his literary labors. Murchison's scientific services were such as could not fail to attract attention and receive acknowledgment. To his scientific honors, which culminated in 1868 in his election as one of the eight foreign members of the French Academy of Sciences, were added titles and distinctions from princes and governments, both at home and abroad, among them the rank of Baronet of the United Kingdom. If these well-earned social honors were highly prized, no less by the courtier than the savant, it may be fairly said that he regarded them as a homage paid through him to science, and that he strove to turn them to good account in its service, as became his genial and kindly nature. In forming an estimate of his scientific character, it must be said that his works show no such extensive acquaintance with geological history and literature as those of Lyell. He was not learned in chem- istry, mineralogy, nor lithology ; and, although skilfully availing himself of the evidences furnished by organic fossils, owed his paleontological determinations to others. His great merit as a geologist seems to have OF ARTS AND SCIENCES : JUNE 4, 1872. 451 been a quick perception of the aspects of the rocks, and a happy facility in grouping and presenting the facts and observations of him- self and others. Professor Giekie, in a recent biographical sketch, speaks of the rare acumen with which Murchison seized the geographical details of a region, and thence deduced the general arrangement of its rocks. His opinions, however, were either adopted from others, without much critical examination, or, in the case of his own observations, often formed hastily, and upon insufficient data ; and very many of his conclusions are already inadmissible. Most of his deductions in the geology of the Alps appear, when viewed in the light which Studer, Lory, Pillet, and especially Favre, have thrown upon that region, to be fallacious. His conclusions as to the age and geological structure of the Scottish Highlands, although sustained by the members of the govern- ment survey, are rejected, apparently with good reason, by Professor Nicoll ; while the subsequent investigations of Sedgwick and of the government surveyors have long since shown that the arrangement of the rocks to which he gave the name of Lower Silurian was based upon a series of mistakes in observation, and that the rocks thus called are identical with the upper division of the Cambrian series of Sedgwick. The history of the Cambrian and Silurian controversy, which alienated him from his old friend Sedgwick, and for the last thirty years has troubled geological nomenclature, is a long one, which has been lately fully discussed elsewhere. Indeed, it would appear that the nomen- clature and classification of Murchison, hitherto so generally adopted for the paleozoic rocks, will be replaced by that of Sedgwick, the ex- actitude of whose early stratigraphical determinations has been fully established by the results of recent investigators both in Europe and America. Frederic Adolf Trendelenburg, Perpetual Secretary of the section of history and philosophy in the Royal Academy of Sciences at Berlin, and a Foreign Honorary Member of this Academy, died in Berlin in January, 1872. In him we regret the loss of one of the great meta- physicians of his country, the most eminent, indeed, as a scholar and a thinker in the department of philosophy, that Germany could boast of since the death of Hegel, Herbart, and Schelling. With these illus- trious men his own name must always be associated, not as one who subscribed to their doctrines, but who followed generally the same lines of investigation, and by an acute, learned, and comprehensive 452 PROCEEDINGS OF THE AMERICAN ACADEMY criticism of their writings prepared the way for the reception of his own metaphysical theories. AVhatever their adherents and followers may have thought of the justice of this criticism, none denied its ability, or the fairness with which it was stated, or the competency of its author, arising from his thorough comprehension of the systems which he impugned, to judge of their merits. As a dialectician, he was unrivalled among German professors of philosophy. But he was also something more and better. He thought and wrote on the most abstruse subjects with singular clearness, precision, and elegance, and with more caution and good sense, and a stricter regard for the great interests of morality and society, than was common with many of the able speculatists who had preceded him in a chair of philosophy in a German university. Of the merits of the peculiar system which he propounded in his principal work, the Logische Untersuchungen, first published in 1840, and which passed to a third edition only two years ago, we must speak with less confidence. "Whether motion is the common and characteristic function both of matter and mind, and whether motion directed by purpose or final cause supplies the means of bridging over the abyss between thought and real being, is more than most metaphysicians of the present day will acknowledge. . Those who may arise in some future age, more competent to settle grave dis- putes of this nature, must decide. But some of the doctrines and arguments incidentally developed in setting forth the main features of his system will always commend themselves to sober judges, as evi- dences of the dialectical shrewdness, the sterling common-sense, and the justness of thought of their author. Trendelenburg seems to have left but few materials for biography. Indefatigable as a student and with his pen, a list of his writings is, in the main, a history of his life. Born at Eutin in Oldenburg, in November, 1802, he studied at Kiel and Leipsic, took the degree of Doctor in Philosophy in 1826, and was appointed Professor of Phi- losophy in the University at Berlin in 1833, two years after the death of Hegel. He first occupied himself with the works of Aristotle, an edition of whose De Anima he published in 1833. This was followed, four years later, by the Elementa Logices Aristotelicce, which is a standard work on the subject, and arrived at the honors of a fourth edition in 1852. A " History of the Doctrine of the Categories," first published in 1846, subsequently appeared as the first volume of the Historische Beitriige, the three later volumes of this work, completed OF ARTS AND SCIENCES: JUNE 4, 1872. 453 in 1867, being occupied with a collection of the memoirs, critical and philosophical, which he had contributed at various times to the " Trans- actions of the Royal Academy." As the result of his inquiries respect- ing the nature and foundations of morality, he published a work en- titled Naturrecht auf dem Grunde der Ethik, which appeared in a second edition in 1868. Second only to the "Logical Researches," this book was the most thoughtful and original of his writings, and the most characteristic of the man. Several smaller essays on the theory of aesthetics need not be here enumerated. In 1849, probably to his own astonishment, the city of Berlin elected him as one of its members to the lower houee of the National As- sembly. Here he generally voted with the conservative party, and published an essay on the methods of voting (ilber die Methode bei Abstimmungen). When the cause of the union of Germany was abandoned, he resigned his seat in the house, in 1851, and went back to those academic labors which occupied his whole life, with the ex- ception of this brief political episode. Henry Longueville Mansel, D. D., Dean of St. Paul's, died in London, July 31, 1871. Though he had not completed his fifty-first year, he had done the work of a long life. His publications were nu merous and important, exerting manifest influence on the course of spec- ulative thought not only in England, but wherever the moral sciences had a home. As a scholar and a thinker in the various departments of philosophy, he had hardly a rival on English ground after the death of Sir William Hamilton. Equally eminent in logic, metaphysics, natural and doctrinal theology, his writings never failed to attract notice and command respect, though they often excited vehement controversy. His Brampton Lectures on the " Limits of Religious Thought," first published in 1858, when he was but thirty-eight years old, passed through three editions in a twelvemonth, and have probably affected the character of English thought in philosophy and theology more than any single work which has appeared since the days of Bishop Butler. In the earnest discussions which it immediately occasioned, and in which such distinguished men as F. D. Maurice, James Mar- tineau, Goldwin Smith, and John S. Mill had a prominent share, Mr. Mansel appeared to great advantage. His stores of learning were im- mense ; equally at home in Greek and German philosophy, in the speculations of the Schoolmen, and in the writings of the fathers of the 454 PROCEEDINGS OE THE AMERICAN ACADEMY English Church, with almost unrivalled powers of clear statement and forcible argumentation, and a great mastery of English style, he either obtained an easy victory over his eminent opponents, or, even in the judgment of their disciples and admirers, left them no cause for triumph. Yet he was modest and candid in manner, an urbane and dignified controversialist, disarming his assailants as much by his flow- ing courtesy and frank acknowledgment of their claims to respect, as by his dialectical skill and abundant erudition. Once only, when pro- voked by continuous misrepresentations no less than by coarse invec- tive and sneers, he retorted with terrible severity, and compelled his opponent to make an apologetic defence. This was the only unpleasant episode in Mr. Mansel's brilliant and prosperous career. His genial manners, ready wit, and quick sympathy with others, made him a great favorite in a large circle of acquaintances and friends. Even as a politician — and he was for years a leader of the conservative party at Oxford — he incurred no enmities and gave no personal offence. The manliness and simplicity of his character allowed no hold for envy or jealousy; and it cost him no effort to gain and preserve great personal popularity. The family of Dean Mansel was distinguished before his time both in the universities and the Church. One member of it had been Mas- ter of Trinity College, Cambridge, and another was Bishop of Bath and Bristol. His father was Rector of Cosgrove, Northamptonshire, a family living, where the late Dean was born on the 6th of October, 1820. Educated at Merchant Taylors' School, he became the leader of his class at that institution, and thus, in 1839, acquired a Junior Fellowship at St. John's College, Oxford, and was graduated four years afterwards as Double First, or with the highest rank both in the classical and the mathematical list. This success obtained for him a tutorship in the College, and his lectures upon logic soon made him famous in the University. In 1849 he published Aldrich's " Rudi- ments of Logic," with an Introduction and copious Notes, of which Sir William Hamilton observed that la sauce vaut mieux que le poisson. The work passed rapidly through three editions, and made its author known as one of the ablest and most learned logicians of the age. Two years afterwards appeared his Prolegomena Logica, which was based upon the philosophy of Kant, and contained the germs of all his subsequent speculations. It was reprinted in this country in 1860, from the second English edition, and has been a standard work in the OF ARTS AND SCIENCES: JUNE 4, 1872. 455 University course of instruction upon metaphysics on both sides of the Atlantic. In 1855, Mr. Mansel was appointed Waynflete Reader in Moral and Metaphysical Philosophy, and four years afterwards, when the recommendations of the University Commission took effect, he be- came Waynflete Professor. Dr. Stanley's appointment as Dean of Westminster having created a vacancy, Mr. Mansel was made Profes- sor of Ecclesiastical History and a Canon of Christ Church ; and in 1869, he succeeded Dr. Milman as Dean of St. Paul's. In philosophy, Dean Mansel is commonly regarded both as a fol- lower of Kant and as a disciple of Sir William Hamilton. This opinion does him great injustice, for though he adopts Kant's premises, it is for the avowed purpose of refuting Kant's conclusions; and he departs widely from Hamilton, both in his theoi'y of Causation, and in his ap- plication of the Philosophy of the Conditioned to an exposure of the illogical character of theological rationalism and dogmatism. His modesty did not allow him to do justice to his own claims as an original thinker and a philosophical theologian. He seems not to have been ambitious to found a school, or to establish a new philosophical system. His aim was rather to rebuke the pretensions and expose the shallowness of those metaphysical infidels who have endeavored to re- construct the doctrines either of Spinoza, Hume, or Hegel, for the avowed purpose of destroying the basis of all religious faith and hope. The ablest and most scholarly refutation of such pantheistic and atheistic speculations which the philosophy of the present age has fur- nished can be found in the several publications of Dean Mansel. Vehemently assailed as these have been by the enemies of conser- vatism in philosophy and theology, they have earned for their author a high place in the list which contains the honored names of Clarke, Cud worth, Butler, and Berkeley. Charles Babbage was born in London, on the 26th of Decem- ber, 1792, and, after a long life of nearly eighty years, died October 20, 1871. As a boy, his health was much weakened by violent fevers, and, accordingly, he was sent to school near Exeter, with in- structions that much study should not be required of him. Here he early displayed the inquiring mind and ingenuity for which, in after life, he was so eminent. In 1811 he entered Cambridge, and graduated at the University in 1814. At this time the College was agitated by a fierce controversy, whether it was right to add notes to the Bible, 456 PROCEEDINGS OF THE AMERICAN ACADEMY each party forming societies and using every means to establish its views. Babbage pai*odied it by forming the Analytical Society to propagate the notation of Leibnitz, using the differential d in the cal- culus, and consigning to perdition all who supported the heresy of the dots of Newton. Being accused of infidelity, the members entitled the first volume of their transactions " The Principles of Pure D-ism in Opposition to the Dot-age of the University." They proposed to trans- late a small work of Lacroix on the Calculus, maintaining that it was so perfect that any comment was unnecessary. In 1828, while in Rome, Babbage was elected Lucasian Professor of Mathematics at Cambridge ; a chair first occupied by Sir Isaac Newton. After filling it for eleven years, he resigned, finding even the few duties it involved too much for his strength in addition to his other work. He bitterly calls it the only honor he ever received in his own country. We now come to the great work of his life, and that by which he is best known to the public, namely, the construction of an engine for performing numerical computations. As early as 1813 he turned his attention to this matter. One evening, when sitting in the room of the Analytical Society, leaning his head on the table, another member, coming in, called out, " Well, Babbage, what are you dreaming about ? " To which he replied, " I am thinking that all these tables (pointing to a table of logarithms) might be calculated by machinery." In 1822 he completed his first Difference Engine, which was capa- ble of working two orders of differences, and computing six places of figures. It was highly approved by the Royal Society, and, in accordance with their recommendation, the government appropriated £1,500 for the construction of a large engine to compute eight orders of differences to sixteen places of figures. For four years the work was carried on uninterruptedly, but then various difficulties presented themselves. As it appeared that the cost would be much greater than was originally anticipated, the government was informed of the fact. More money was obtained ; but, owing to the delay, the engineer who had entire charge of the construction withdrew, taking with him all the tools, the labor of years. A lawsuit ensued, but he was finally allowed to retain them. The work now went on at intervals, but finally a new idea occurred to Babbage of a machine whose powers should vastly exceed those of the Difference Engine. He called it the Analytical En- gine, and it is difficult to describe, in a short notice like the present, OF ARTS AND SCIENCES : JUNE 4, 1872. 457 the wonderful powers of this machine. - It bore about the same rela- tion to the other that algebra does to arithmetic, and, instead of merely computing arithmetical tables, it was designed to deal with all forms of analytical operations. Suppose we have any formula whatsoever from which we wish to compute a series of numerical values. Two sets of cards, like those of a Jacquard loom, are furnished the engine, the first to direct the nature of the operations to be performed, and the second to show which variables are to be acted upon. The numerical values of the constants being placed on the wheels, it would compute and print the results of the formula. If, during the operation, it wanted some other quantity, as the logarithm of a given number, it would ring a bell, and then stop. The attendant would find out what was wanted, and, procuring the logarithmic card, would place it in the machine. The latter would first see if it was correct, and, if not, would ring a louder bell and again stop. It would express every number it used to fifty places of figures, and would multiply two such numbers, giving a hun- dred places in the product, in about a minute. The complication of this instrument was such that it was impossible to represent it by or- dinary drawings. Babbage, therefore, used a system of mechanical notation which he had devised, and without which he claimed that it could not have existed even upon paper. In 1833, a portion of the Difference Engine was put together and worked admirably, computing tables with two or three orders of differences to sixteen places ; but, unfortunately, the new invention seemed to supersede it, and finally, in 1842, the government, after spending £17,000 on the project, refused to give any further aid. Babbage now devoted his whole attention to the engrossing subject of the Analytical Engine, and succeeded so far that, with sufficient means, there seems to be little doubt that he would have attained all that he claimed. His health suffered severely from the intense mental strain to which he was subjected in designing his engines, and, in consequence, he travelled a great deal both in England and on the Continent. As he seems to have availed himself of every opportunity to inspect in per- son any novelty he met with, we find him in many strange positions, and often narrowly escaping serious accidents. Thus, as a boy he was nearly drowned while testing a swimming-machine he had constructed. Again, in the Thames Tunnel, in company with Brunei, the water breaks in, and, but for the presence of mind of the latter, both would vol. viii. 58 458 PROCEEDINGS OF THE AMERICAN ACADEMY probably have been drowned. Later he descends in a diving-bell, in a coal mine is surrounded by explosive gases, enters the air-chamber of a blast furnace, also an oven for baking moulds at a temperature of 265° F., and finally descends the crater of Vesuvius between two eruptions which are taking place periodically at intervals of ten or fifteen minutes. In the early days of railroads he made many ex- periments on them ; and one Sunday morning, when just about to start on an experimental train with thirty tons of pig-iron on board, nar- rowly escaped a collision with Brunei, who came down the line on an engine at the rate of fifty miles an hour. He was elected a member of most of the principal scientific societies of the world, so that he was able to write after his name the titles, A. A. S., F. R. S., F. R. S. E., F. R. A. S., F. Stat. S., Hon. M. R. I. A., M. C. P. S., Inst. Imp. (Acad. Moral.) Paris Corr., Reg. OEcon. Boruss., Phts. Hist. Nat. Genev., Acad. Reg. Monac, Hafn, Massil., et Divion., Socius, Acad. Imp. et Reg. Petrop., Neap., Brux., Patav., Georg. Floren., Ltncei Rom., Mut., Phi- lomath. Paris Soc. Corr., etc. His writings are somewhat volumi- nous. Among the most noted are the following. That " On a Method of Expressing by Signs the Action of Machinery" is a descrip- tion of his Mechanical Notation. A good example of his talent for satire is a scathing criticism of the Royal Society, entitled " Reflections on the Decline of Science in England, and on some of its Causes." His most successful work was the " Economy of Manufactures and Machinery," which went through many editions, and was translated into German, French, Italian, and Spanish. To these must be added the " Ninth Bridgewater Treatise," and his autobiography, " Passages from the Life of a Philosopher." As often happens with men of genius, when once interested in a sub- ject he would devote his utmost powers to it, however trifling its im- portance ; as, for instance, in reading ciphers, picking locks, and de- vising automata for playing games of skill. Or, again, when annoyed by street musicians, he displayed the same perseverance in prosecuting them as when urging the importance of his inventions on the govern- ment. As his engines have not been, and probably never will be, com- pleted, many, doubtless, regard the life of Babbage as a failure. Yet in his own department he stood unequalled, and to him belongs the credit of devising the most complicated piece of machinery ever planned by the human mind. OF ARTS AND SCIENCES : JUNE 4, 1872. 459 Benoit Fourneyron was born October 31, 1802, at St. Etienne, France. He studied in the School of Mines of his native city, and began his career as a mining engineer in the mines of Creuzot. His attention was soon turned to water-wheels, and his experiments for im- proving horizontal water-wheels are said to have been begun as early as 1823. In 1827 his first turbine, constructed on the new principle of putting a cylindrical wheel with curved floats outside of a fixed cylin- der containing curved guides, was set up at Pont sur l'Ognon. It was of six-horse power, and its efficiency was rated at eighty per cent. A second wheel of seven or eight horse power was erected in 1831 at Dampierre, and a third, of fifty-horse power, in 1832, at Fraisans. The success of this invention was so marked, that a prize of 6,000 francs, offered by the'Society for the Encouragement of National Industry, for the best application to mills and manufactories of the hydraulic tur- bines of Belidor, was awarded to Fourneyron in 1834. These wheels were soon introduced in various parts of France and Germany. One in the Black Forest worked under a fall of 354 feet. Gold medals were awarded to Fourneyron at the Industrial Expositions of 1839 and 1855, and a medal of honor at that of 1867. Fourneyron was Chief of Battalion of the National Guards in 1847, and in 1848 represented the Department of the Loire in the Constituent Assembly. He pub- lished papers on turbines, and on several other engineering subjects, in the Bulletin of the Industrial Society of Mulhouse for 1831, in the Bul- letin of the Paris Society for the Encouragement of National Industry for 1834, and in the Comptes Rendus for 1836, 1837, 1840, 1841, 1843, and 1852. A treatise on turbines was published by him at Liege in 1841, and a table on the flow of water in pipes in 1844. He was elected a Foreign Honorary Member of this Academy, November 13, 1849. He died in Paris, July 8, 1867. Hugo von Mohl, the acknowledged chief of the vegetable anatomists of this generation, died on the first day of April last. He was born at Stuttgard, April 8, 1805, the youngest of four brothers who all became men of mark in political and scientific life ; Julius the orientalist and Hugo the botanist being the most distinguished. The latter was educated at the Stuttgard Gymnasium and Tubingen University, where he studied medicine as well as natural history and physics. His first publication, while a student, in the year 1827, was his Essay on the Structure and Soiling of Tendrils and Twiners, written in 460 PROCEEDINGS OF THE AMERICAN ACADEMY response to a prize-question offered by the Tubingen Medical Faculty. In it he divined the real nature of the movements which coiling stems and tendrils execute, as has recently been clearly made out. In the following year appeared his inaugural dissertation on the Pores of the Cellular Tissue of Plants, in which his later views and discoveries, respecting the structure, growth, and component parts of cells, as sub- sequently developed, are already foreshadowed. About this time his choice was made for a scientific rather than a medical career ; and he went to Munich to prosecute more advantageously his favorite studies. Here the late Von Martius and Zuccarini were his botanical masters, and Agassiz, Karl Schimper, Braun, and Engelmann his fellow-students. Here he made those researches upon the anatomy of ferns, cycads, and especially of palms, — the latter a most important contribution to Martius's great work upon palms, the former also contributed to another work by Martius, — which first displayed his remarkable talents for his- tological investigation, to which his subsequent scientific life was mainly devoted. His merits were promptly recognized by a call to the Im- perial Botanic Garden of St. Petersburg, as assistant to its director, Dr. Fischer, and to the chair of physiology in the Academy of Berne. He accepted the latter in 1832, and occupied it until 1835. Then, upon the death of Schubler, he returned to Tiibingen, accepted the professorship of botany in its High School, in which chair and in that of Tubingen University the rest of his life was passed. Invitations to more prominent and lucrative positions, as, for example, to the botanical chair at Berlin University when vacated by the death of the veteran Link, were unhesitatingly declined. Although he published numerous (about ninety) special papers or articles, most of them important and timely, and some of great pith and moment, he resolutely declined to bring out any general work. His Mikrographie (1846) and his " Principles of the Anatomy and Physiology of the Vegetable Cell " are his only writings which may claim to be such. The latter, an admira- ble and still invaluable treatise, appeared as an article in Rudolf Wag- ner's Cyclopaedia of Physiology, but is best known to English readers in its separate form, in a translation made by the late Professor Henfrey, with the author's sanction, issued by Van Voorst in 1852. A year or two later it was for a time understood, to the great satisfaction of botanists, that Mohl had agreed to take a prominent part in the pro- duction of a general Manual of the Anatomy and Physiology of Plants ; but his promise was soon withdrawn. For thirty years he was OF ARTS AND SCIENCES : JUNE 4, 1872. 461 one of the editors of the Botanische Zeitung ; but the editorial labor must have devolved mainly upon Schlechtendal and his successor, although occasional articles from Mohl's pen appeared as late as the year 1871. During that year his health became seriously im- paired; yet, as the new year advanced, apprehension disappeared. Upon Easter Monday he was apparently well, and so retired to nightly rest : in the morning he was found to have died in sleep. John F. W. Herschel was born on March 7, 1792, and died on May 11, 1871, having nearly approached the advanced age of four- score of years. If there is any single spot on earth more memorable than all others in the history of astronomy, it is the observatory of William Herschel, the father, at Slough. Discoveries more and greater than have ever been made elsewhere have given to this little village a fame which will keep alive that of Windsor Castle, as the king, George III., wisely calculated when he placed the astronomer near him with a pension. Of this genius of the observatory, educated, like all of his nine brothers and sisters, to be a musician, it was said that he " had reached the middle of his course before his career of discovery began, and it was in the autumn and winter of his days that he reaped the full harvest of his glory." Here, at Slough, the father incessantly watched the stars for forty years, with a natural vision above that of ordinary mortals, assisted by optical contrivances of his own invention, which are scarcely surpassed by those of the generations which have entered into his labors. Here, also, was the home of Caroline L. Herschel, herself no ordinary astronomer, who left the world of science in doubt which most to admire, " the intellectual power of the brother, or the unconquerable industry of the sister." From this spot William Herschel sent to the Royal Society, in rapid succession, sixty-seven memoirs, richly freighted with his own glorious discoveries, which were the safe ballast by which he kept his mind from growing giddy with his bold speculations on the structure of the universal heavens. On this spot were discovered the satellites of the new planet, Uranus, and two additional satellites of the old planet, Saturn ; on this spot was showered for the first time, in visible forms, the light of hundreds of nebulas, and here was first dis- sected the blended lustre of more than five hundred double stars. Here were garnered up the proofs that the sun was not a fixed point about which the planets revolved, but that it was sent, in their company, on a mission of its own from star to star and from constellation to constel- 462 PROCEEDINGS OF THE AMERICAN ACADEMY lation, the full import of which cannot even now be more than surmised. The magnificent and almost solitary career of the elder Herschel is thus described by the late Sir David Brewster : " The springtide of knowledge, which was thus let in upon the human mind, continued for a while to spread its waves over Europe ; but when it sank to its ebb in England, there was no other bark left upon the strand but that of the Deucalion of Science, whose home had been so long upon its waters." On such a spot as this, and into such a home as this, the young Her- schel was born. There are, no doubt, those, and not a few, on whom such high companionship, such inspiring examples, would have been wasted. There are in science, as well as in literature and all the other walks of life, examples enough of degenerate sons placed in saddest contrast with an illustrious ancestry. Happily for science, John Her- schel was not of this class. His great career, as well as the few glimpses he has permitted the world to have into his early life, gives us the assurance that none of that untiring devotion to science, of those mid- night watches among the stars, or of that incessant labor by day, which have made the name of Herschel a household word in all lands, was lost upon his young mind and heart. It was not in vain that the aroma of Science perfumed his cradle and his early childhood. By it, no doubt, he was won to lovingly enter her service and prepare himself to receive the mantle when it fell from the shoulders of his aged father. No micro- scopic autobiography has distinctly revealed to us the reality of what we can easily suspect. But the obituary notices of the Royal Astronomical Society inform us that John Herschel himself, in a few rare instances, has lifted the veil which obstructs our view by reporting the dialogues which he had with his father. These hints justify our inference that the boy, at an early age, was charged to reflect as well as to hear, and to see as well as to look. Until Herschel entered St. John's College in the University of Cam- bridge, for which he was fitted at the early age of seventeen, his education was received chiefly at home, with private tutors. For, after a short trial at Eton, he was removed from that school in consequence of the abuse he endured from a stronger boy, the nature of which we do not know ; but perhaps here it would be called hazing. At the University, he mastered Newton's Principiq, and graduated as senior wrangler, the eminent mathematician, Professor George Peacock, being second on the list. If it be true, as has been pithily said, that God always works by geometry, the course which Herschel preferred at Cambridge was the best prepa- OF ARTS AND SCIENCES: JUNE 4, 1872. 463 ration he could have made for his great scientific career. And here again, doubtless, he owed something to a father's example. The world has been so dazzled by the brilliant results of Sir William Herschel's in- comparable powers of vision, his bold scientific imagination, and his mag- nificent instruments, as not to see that he had also been a musician who entranced fashionable audiences in the theatre and concert-room and in oratorios, and that he studied algebra and geometry in order that he might master Robert Smith's " Harmonics, or the Philosophy of Musical Sounds." Arago has recalled from oblivion the fact that in 1779 Her- schel gave the solution to a difficult problem on the vibrations of a loaded cord, which may be seen in Leybourn's edition of the " Ladies' Mathe- matical Diary." The younger Herschel, in the eulogy which he pro- nounced upon his worthy compeer, Francis Baily, makes this confession in regard to the state of science in England at the beginning of the pres- ent century : " Mathematics were at the last gasp, and astronomy nearly so." The ponderous notation of fluxions, which required the giant arm of a Newton to wield successfully, was retained at the English universi- ties after science had outgrown it, and the finer methods of the Conti- nental mathematicians were ignored. Herschel did his part, as student and graduate, to inaugurate the revolution which finally culminated in such mathematicians as Hamilton and MacCullagh, Sylvester and Gregory, Boole and Cayley, Tait, Adams, Airy, and Thompson. The president of the British Association in 1871 (a most competent witness) said : " In respect to pure mathematics, Sir John Herschel did more, I believe, than any other man, to introduce into England the powerful methods and the valuable notation of modern analysis." Herschel was one of the first to recognize the value of Hamilton's quaternions, which he described as a " Cornucopia from which, turn it how you will, something valuable is sure to fall." If Herschel had de- voted his life to the development of the pure mathematics, as he seemed at first inclined to do, he might have taken rank with the highest in that field of investigation. His earliest publications were upon this subject, and he frequently returned to his first love, as late even as 1850. There is no occasion to regret that a mind of a high order, and thoroughly imbued with the mathematical spirit, should have been transplanted into the domains of geology, chemistry, physics, and astron- omy, for there were fields there already white and waiting for a harvest, and only a mathematician could be the reaper. All of these sciences aspire to that high estate which some have already reached, when 464 PROCEEDINGS OF THE AMERICAN ACADEMY theories stand or fall according to the quantity as well as the quality of the forces which they furnish for the explanation of phenomena, — quantities which the highest mathematics are often inadequate to calcu- late. Herschel moved from Cambridge to London, and began the study of Law. But the new acquaintance which he formed with Wollaston, the microscopic philosopher, as he has been called, soon turned his attention to Chemistry and Optics. His first publica- tion in chemistry, on hyposulphurous acid, contained an important discovery, and was followed, at various intervals, by others, — on photography, on the chemical influence of light, on the action of light on precipitation, and on its effect upon vegetable colors. His inves- tigations in Optics began at as early a date, and were not wholly re- linquished until 1863. He applied the theory of diffraction to the ex- planation of the beautiful colors of mother-of-pearl; calculated the colored curves, called lemniscates, produced by the passage of polarized light through biaxial crystals ; investigated Newton's tints ; studied the aberration of lenses, the absorption of light by colored media, the light emitted by lime, the mineralogical import of right-handed and left- handed circular polarization in quartz, the irregularities of the colored rings in apophillite, the insensibility of some eyes to certain colors ; discussed the merits of a fluid lens for the telescope ; examined the coloring matter in certain green sands ; suggested improvements in the Argand lamp ; added the lavender tint to the solar spectrum ; and finally, by his announcement of epipolic dispersion as exhibited on the surface of sulphate of quinine, furnished Stokes with the key to his important discovery of the change which luminous waves may suffer in their period of oscillation. Notwithstanding the numerous successes which Herschel achieved as mathematician, chemist, and physicist, and the still greater triumphs in these directions of which he gave promise, he was destined by circum- stances, if not by preference, to be an astronomer. The Royal Astro- nomical Society of London was founded in 1820, with William Herschel as its first President, and John Herschel as its first Foreign Secretary, and in the thirty-eight volumes of valuable memoirs which it has pub- lished, no other name shines so brightly as that of Herschel. If the il- lustrious F. G. W. Struve was animated, as he confesses, by the great example of William Herschel, to undertake his vast labor on the Dou- ble Stars, it is not strange that the younger Herschel should have been OF ARTS AND SCIENCES: JUNE 4, 1872. 465 ambitious of reaffirming the discoveries of his father in the northern hemisphere, and of completing them by an independent survey of the southern stars and nebulae. For this purpose, he was first associated with Sir James South, an amateur astronomer of immense zeal and am- ple means. The union was a happy one for both, and for astronomy, inasmuch as it placed at Herschel's disposal instruments of the first class, and secured to the work which had been undertaken the advantage of a highly gifted and well-trained mind. While this partnership lasted, observations and measurements were made on 380 double or triple stars, and promptly published. Soon after this, we find Herschel established in the spot of greatest interest to all astronomers, and to him above all others, namely, in the old observatory at Slough. Provided with a reflecting telescope of 18 inches aperture, in the construction of which he had the advice of his father, he began to sweep the sky for double stars and nebulae, as his father had done before him, and with equal success, though he missed the valuable assistance which his father had enjoyed in Miss Caroline L. Herschel. In spite of this disadvantage, and without the mechani- cal appliances which Struve enjoyed, and the still greater conveniences which both would have found in the chronographic method of re- cent times, catalogue after catalogue of double stars, clusters, and nebulae, many of which had escaped the piercing eye of the father, poured into the volumes of the Royal Society and the Astronomical So- ciety, and Slough became once more a centre of intense intellectual ac- tivity. Herschel was now more than forty years old. And if he had been less ambitious, or less courageous, or less devoted to astronomy, he might have been content with the laurels already won. But he knew that there was a new world of astronomy to be conquered in the southern hemisphere, — a zone of more than fifty degrees encircling the south pole, no star of which could ever shine in his telescope at Slough,, however penetrating. Now and then an astronomer, like La Caille, had been despatched thither for a specific purpose and for a brief residence, and observatories, more or less permanent, had been established at the Cape of Good Hope and at Paramatta ; but no one, before Herschel, had dreamed of making an exhaustive survey of those strange skies, of which the eloquent pen of Humboldt had depicted, and possibly ex- aggerated, the beauties. The motives and the object of Herschel in ban- ishing himself, with his family and assistants, for four years, to the Cape of Good Hope, are best described in his own words. After alluding to vol. viii. 59 466 PROCEEDINGS OF THE AMERICAN ACADEMY what he and his father had done at Slough, he continues : " Having so far succeeded to my wish (the places of the objects thus determined proving, on the whole, satisfactory), and having by this practice acquired sufficient mastery of the instrument employed (a reflecting telescope of 14^ inches clear aperture and 20 feet focus on my father's construction), and of the delicate process of polishing the specula ; being, moreover, strongly in- vited by the peculiar interest of the subject, and the wonderful nature of the objects which presented themselves in the course of its prosecution, I resolved to attempt the completion of a survey of the whole surface of the heavens, and, for this purpose, to transport into the other hemi- sphere the same instrument which had been employed in this, so as to give a unity to the results of both portions of the survey, and to render them comparable with each other." Herschel sailed from England on November 13, 1833, with his family and instruments ; and on his arrival at the Cape, January 15, 1834, he selected, as the site of his temporary observatory, Feldhausen, situated a little to the southwest of the Royal Observatory of the Cape. In a month his instruments were placed in position and ready for work. After luxuriating for a few nights, with laudable curiosity, on some ex- traordinary objects in the constellation of the Cross and of Argo, he be- gan his regular sweeps of the southern sky on the 5th of March. When he had left the Cape, a granite monument was erected by friends, to commemorate the charming spot, at the base of Table Mountain, where his observatory stood. Few astronomers will have the privilege of see- ing it. But they have the greater privilege of beholding always the nobler monument to the family name of Herschel, in the magnificent quarto volume, of nearly five hundred pages, illustrated with seventeen plates, which bears the august title, " Results of Astronomical Observa- tions made during the years 1834, 5, 6, 7, 8, at the Cape of Good Hope ; being the completion of a telescopic survey of the whole sur- face of the visible heavens, commenced in 1825," and dedicated to the late Hugh, Duke of Northumberland, by whose munificence the work was published. A bare enumeration of the subjects of the seven chapters of this volume will give some idea of the variety and severity of the labor crowded into Herschel's few years of residence at the Cape. Chapter I. records that which energized the whole enterprise, namely, the regis- tration of the nebulae and clusters of the southern sky. Of these, 1708 are registered, most of them new to astronomy. Others, not wholly OF ARTS AND SCIENCES : JUNE 4, 1872. 467 invisible in the northern observatories, were carefully re-examined by Herschel from his more favorable point of view. The Magellanic Clouds, that miscellaneous collection of individual objects in strange com- panionship, were dissected, and found to be composed, the one of 919 and the other of 244 distinct stars, nebulte, and clusters. Chapter II. tells us that his catalogue of double stars, which had reached 3346 in the northern hemisphere, had grown by his southern contributions to 5542. Chapter III. marks the indomitable perseverance of the astron- omer, who found relief from severer toil in determining the relative brightnesses of many of the southern stars. Neither did Herschel omit, as we learn from Chapter IV., to apply to the southern stars and the southern galaxy the system of gauging, instituted by his father, to discover the comparative popidousness of the sky in different spots ; on which, as upon a scientific basis, and not, as others had done before him, by mere speculation, he ventured an outlook into the structure of the universe. Probably an astronomer less zealous than Herschel would not have allowed the opportunity to slip of observing a comet as remarkable as Halley's, at its last appearance in 1835. But as we turn over the pages of Chapter V. of the Results, and rehearse the numer- ous observations therein recorded, and examine the admirable delinea tions of the changing phases of the comet, comparable in excellence with those which Schwabe and Bessel made in Europe, and ponder upon Herschel's weighty discussion of the physical condition of comets (better revealed by this comet than by any other except Donati's), we cannot but congratulate science on the well-timed visit of comet and astronomer. The two remaining chapters record observations on the sat- ellites of Saturn and the solar spots. No one knew better than Herschel the need of new evidence for computing the orbits, or even verifying the existence, of these remote satellites ; and the course of recent investiga- tions into solar influences has given an importance to all good observa- tions on the sun's spots greater than any one could have anticipated. Herschel realized, no doubt, that the new views of the celestial scenery which he had enjoyed, the intellectual gratification which he had re- ceived from his discoveries, and the filial duty that he had discharged to astronomy, were an over-payment for whatever he had sacrificed by a self-imposed banishment' from his native land. Nevertheless, he had given to astronomers a bright example of the victory which a passion for truth may gain over present comfort and social enjoyment, and an example which others have been ambitious to imitate. His return to England was, therefore, as it deserved to be, an ovation. 468 PROCEEDINGS OF THE AMERICAN ACADEMY If what Herschel did at Slough and at the Cape of Good Hope was the greatest work of his life, it by no means fills out the measure of his services even to astronomy. Among his miscellaneous contributions to scientific journals and transactions we find such subjects as these : Oc- cultation of the Stars ; Determination of Differences of Geographical Longitude ; Parallax of the Fixed Stars ; Orbits of Binary Stars ; Biela's Comet and the great Comet of 1843 ; Revision of the Constel- lations ; Satellites of Uranus ; Variability of Stars ; Test Objects for Telescopes ; Entrance Passages into the Pyramids of Gizeh ; and upon each and all might be inscribed, Non tetigit quod non omavit. Astronomy has done much for geography, and it promises to do more for geology, whenever the geologist shall have a moderate knowledge of astronomy, or the astronomer interest himself in the wonders of geol- ogy. Of various contributions which Herschel made to geology, two may be particularized. 1. He discussed with Lyell the effect which the position of the major axis of the earth's orbit might have on the com- parative climates of the northern and southern hemispheres. 2. The startling and irregular changes in one of the stars of the constella- tion Argo, some of which came under his own inspection, suggested to Herschel reflections on the possible fluctuations in solar heat, and the con- sequent vicissitudes in the earth's history, which are worthy of the at- tention of every thoughtful geologist. Moreover, the scientific powers of Herschel were not confined to mathematics, chemistry, astronomy, and geology, for occasionally he made excursions into the domains of meteorology, magnetism, electricity, and general physics. However broad the field over which Herschel travelled as an original investigator, he still found time to write elaborate treatises on special subjects. In the Encyclopedia Metropolitana, he has handled the sub- jects of Light and Sound in a masterly way. His contributions to this work were published forty years ago, but nothing has been written since in the English language that will supply their place, although the trea- tise on Sound requires now numerous additions to bring it up to the present state of the science of acoustics. The treatise on Light is rich in illustrations, experimental, mathematical, and historical, and contains an impartial presentation of the merits of the corpuscular and undula- tory theories of light, and of the great services of Newton, Huyghens, Young, and Fresnel. The English reader owes especial regard to Herschel for his first introduction to Fresnel, the mathematical ex- pounder of the undulatory theory of light; his scattered and tardily OF ARTS AND SCIENCES: JUNE 4, 1872. 469 published writings having been first gathered and printed in an easily accessible form as recently as 1866. We have to thank the German and French translators for rescuing this treatise of Herschel on Light from the bulky and unwieldy volumes of the Encyclopaedia, and print- ing it in a separate and convenient form. Herschel wrote two volumes for the Cabinet Cyclopaedia of Dr. Lardner. " The Preliminary Dis- course on the Study of Natural Philosophy " brought him into no- tice before a larger public as a writer and a philosopher. The objects and the methods of science, the meaning of natural law, and, of course, the analysis of phenomena and the process of generalization, the util- ity, dignity, and pleasures of science, are elegantly stated and vividly illustrated. This discourse was translated into German. The treatise on Astronomy, first published in the Cyclopaedia in 1833 (and also translated into German), was expanded in 1849 into the " Outlines of Astronomy," which has run through ten editions. In this work, Her- schel has handled skilfully the subject of planetary perturbations, without the use of the higher mathematics, and has given to the gen- eral reader imperfect glimpses of what must otherwise have been a sealed book to him ; and everywhere the language is as grand as the themes of which it treats. In 1859 the " Outlines " was translated into Chinese. Herschel did not disdain the task of writing for the people as well as for men of science. Three articles which he furnished to the Encyclo- pedia Britannica, on Meteorology, on Physical Geography, and on the Telescope, have been republished in separate volumes. After reaching the advanced age of threescore years and ten, he delivered a few lec- tures to a village audience, and then printed them, with other similar productions, in " Good Words." In 1868, they were collected into asmall volume, with the title " Familiar Lectures on Scientific Subjects." But this must have been the amusement of his leisure hours, if it is possible to suppose that a man who did constantly so much heavy work had any leisure. How he refreshed himself after the midnight watches at the observatory, or amid the sterner labors of his study, all may know who will examine the volume issued in 1857 with the title, " Essays from the Edinburgh and Quarterly Reviews, with Addresses and other Pieces." These other pieces were poems, original or translated, while the Re- views and Addresses were upon the loftiest themes in science and phi- losophy, and abound in passages of magnificent diction, profound thought, and sublime eloquence. 470 PROCEEDINGS OF THE AMERICAN ACADEMY The last years of Herschel's life, when he seemed to have retired from active service, were enriched with the fruits of his intellect and imagination. He is still poet, philosopher, mathematician, physicist, and astronomer, to his latest hour. Though his translation of the Iliad of Homer may give him a place as a classical scholar by the side of Pope, Blackie, Dart, Lord Derby, or our own Bryant, we can fancy the happiest moments of his life to have been when, in 1864, after having tardily published the seventh catalogue of observations at Slough, he gave to the world his one hundred and thirty-fourth scientific paper, namely, a highly elaborated catalogue of the five thousand and seventy- nine nebula? which had been observed by his father, himself, or any other astronomer : or again when, undaunted by the growing infirmi- ties of age, he labored at the stupendous task of framing a universal catalogue, with descriptions, of the ten thousand double stars hitherto registered, bequeathing the manuscript to loving hands, so as to secure its speedy completion and publication. We may not forget the services which Herschel rendered to his coun- try as Master of the Mint for five years, as President of the Royal As- tronomical Society, and of the British Association for the Advance- ment of Science, or by the Instructions which he edited for the Board of Admiralty as a Manual of Scientific Inquiry, and to which he con- tributed his quota. We may also allude to the reports he made in behalf of the Magnetic and Meteorological Observatories established throughout the British Empire, and his efforts to establish a uniform standard of length. Fired by the example of Humboldt, he kindled his own country into a like enthusiasm in the study of Terrestrial Mag- netism, which he watched and guided for twenty years, nerving his coworkers to undertake a first, second, and even third, magnetic crusade. The tendency, and almost the necessity, of modern scientific study is strongly in favor of an exclusive devotion to some narrow specialty. Dissipation of energy is conditioned on superficiality, and the universal genius is regarded with suspicion. Nevertheless, the example of Her- schel is an exhortation and an encouragement to the most liberal cul- ture, by showing how many things can be done, and done well, when length of days, indomitable industry, and good natural endowments are united. It is to the credit of humanity and of science that the merits of Herschel were felt in every home, and met with all that public rec- ognition and honor which academies and societies are able to bestow. It is a pleasant thought that this great and successful man of science had OF ARTS AND SCIENCES: JUNE 4, 1872. 471 no scientific quarrels to embitter his life, that his character was beyond reproach, that his cup of domestic joy was full, and that everywhere he was loved as much as he was admired. Happily, too, he has left suc- cessors to his fame as well as to his name, who may be worthy to wear the mantle which two generations have made resplendent. Sir William Thompson, in his address before the British Association, said : " A monument to Faraday and a monument to Herschel Brit- ain must have. The nation will not be satisfied with anything, however splendid, done by private subscription." Whatever other monument Herschel may have, let that most appropriate one be forever guarded and preserved, which he himself chose in honoring his father, when, on January 1, 1840, he, and his wife, and children, and servants, assembled around the dismantled and prostrate telescope which had astonished the world, sang a requiem, which he composed, inside of the tube, and then hermetically sealed it. Moses Ashley Curtis was born in Stockbridge, Massachusetts, on the 11th of May, 1808. His father was the Rev. Jared Curtis, of Stockbridge, afterwards for many years chaplain of the State Prison at Charlestown. His mother was a daughter of General Moses Ashley. He was fitted for college chiefly under his father's tuition, and was graduated at Williams in the class of 1827. Three years afterward, he went to Wilmington, North Carolina, as a tutor in the family of Governor Dudley, while at the same time he studied divinity. There he resided until the year 1841, with the exception of a year and a half passed with his father in Charlestown. In the autumn of 1834, he married Miss De Rosset, of Wilmington, who survives him. He took holy orders at Richmond, Virginia, in the summer of 1835 ; became rector of the Protestant Episcopal Church at Hillsborough, North Carolina, in 1841, and fulfilled the duties of this station for the remainder of his life, with the exception of ten years, from 1847 to 1857, during which he had the pastoral charge of a parish at Society Hill, South Carolina. The degree of Doctor of Divinity was con- ferred on him by the University of North Carolina, at Chapel Hill. His health for a few years past was sensibly impaired ; but he was able to perform his professional duties, and, in a measure, to prosecute his scientific studies, until the 10th of April last, when he died suddenly, probably of heart disease. Dr. Curtis's attention must have early been attracted to botany, and 472 PROCEEDINGS OF THE AMERICAN ACADEMY his predilection fixed by his residence at Wilmington, one of the richest and most remarkable botanical stations in the United States. For it was in the year 1834, after only three years' residence there, that he com- municated to the Boston Society of Natural History his first botanical work, namely, his " Enumeration of Plants growing spontaneously around Wilmington, North Carolina, with Remarks on some New and Obscure Species." This was printed in the first volume and second number of that Society's Journal ; but the original impression having been mainly destroyed by fire, important additions and emendations were made in tbe subsequent reprint. The author's powers of observation and aptitude for research are well shown in this publication, and it is one of the earliest of the kind in this country in which the names of the genera and species are accented. In his note upon the structure of Dionasa, or Venus's Fly-trap, — a plant found only in the dis- trict around Wilmington, — Dr. Curtis corrected the account of the mode of its wonderful action which had prevailed since the time of Linnaeus, and confirmed the statement and inferences of the first scientific describer, Ellis, namely, that this plant not only captures insects, but consumes them, enveloping them in a mucilaginous fluid which appears to act as a solvent. Extending his botanical observa- tions to the western borders of his adopted State, Dr. Curtis was among the first to retrace the steps and rediscover the plants found and pub- lished by the elder Michaux, in the higher Alleghany Mountains. But for the last twenty-five years, his scientific studies were mainly given to mycology, in which he became a proficient and the highest American authority. His papers upon Fungi, some of which are large, and all important, were mainly published by the American Philosophical Society, and by the Linnean Society of London. Several of them are the joint productions of Dr. Curtis and of the able English mycologist, Mr. Berkeley. His other published writings mainly are " A Commentary on the Natural History of Dr. Hawks's ' History of North Carolina,' " — a good specimen of his appreciation of exact research, and sharpness of wit wholly free of acerbity ; two papers in " Silliman's Journal" on "New and Rare Plants of the Carolinas" ; and the botanical portion of the " Geological and Natural History Survey of North Carolina," in two parts ; — the first, a popular account of the trees and shrubs, issued in 1860 ; the other, a catalogue of all the plants of the State, in 1867. This includes the lower Cryptogamia, especially the Fungi, of which he enumerates almost 2,400 species, OF ARTS AND SCIENCES : JUNE 4, 1872. 473 ■while the Phamogamous plants are less than 1,900. All our as- sociate's work was marked by ability and conscientiousness. "With a just appreciation both of the needs of the science and of what he could best do under the circumstances, when he had exhausted the limited field in Phamogamous Botany within his reach he entered upon the inexhaustible ground of Mycology, which had been neglected in this country since the time of Schweinitz. In this difficult depart- ment he investigated and published a large number of new species, as well as determined the old ones, and amassed an ample collection, the preservation of which is most important, comprising as it does the specimens, drawings, and original notes which are to authenticate his work. By his unremitting and well-directed labors, filling the intervals of an honored and faithful professional life, he has richly earned the gratitude of the present and ensuing generations of botanists. Several years ago he prepared drawings of the edible Fungi of the country, with a view to making them better known in an accessible and popular publication ; but he was unable to find a publisher. He was much im- pressed with their importance as a source of food. During the hard- ships of the Rebellion, he turned his knowledge of them to useful account for his family and neighborhood ; and he declared that he could have supported a regiment upon excellent and delicious food which was wasting in the fields and woods around him. D Jonx Edwards Holbrook was born in Beaufort, South Carolina, on the 31st of December, 179G. He spent his childhood in Wrentham, Massachusetts, the home of his father. He graduated at Brown University, subsequently studied medicine in Philadelphia, and com- pleted his scientific education at the Medical School of Edinburgh. He travelled extensively on the Continent, making himself thoroughly familiar with everything pertaining to his profession. In 1822, he returned to America, and established himself in Charleston, where he was appointed to the Professorship of Anatomy in the Medical School ; — a post he occupied for over thirty years. In 1827, he married Miss Harriet Rutledge, who assisted and encouraged him in all his sci- entific pursuits. Her remarkable social and intellectual qualities endeared her to a large circle of friends, who will ever gratefully remember the hospitalities of Belmont and the kindness of the host and hostess. In the midst of his professional duties he found time to devote to VOL. VITI. 60 474 PROCEEDINGS OF THE AMERICAN ACADEMY investigations of Natural History, his volumes on the " Herpetology of the United States" being perhaps one of the first publications to attract the attention of European scientific men to the progress of the natural sciences in the United States. The naturalists of the present day cannot be too grateful to him for having produced a work which at the time not only had no equal in Europe in its special department, but will remain hereafter the standard work, and the basis for all subsequent works on the subject in this country ; .although at the time' of its publication the difficulties which beset an author, in the way of want of libraries, total absence of scientific tradition, and lack of accurately determined material, can hardly be appreciated by the naturalists of the present time, with their daily increasing facilities for study and comparison. These difficulties only a true love of his science could have sur- mounted ; and the example given by Dr. Holbrook will long be bene- ficially felt throughout the country. After the completion of his " Herpetology " he visited Europe again, and renewed the relations he had formed before with the scientific men abroad, more especially with the professors of the Jardin des Plantes. On the breaking out of the war, he was engaged upon his " Ichthy- ology of South Carolina," for which the State of South Carolina had given him a moderate grant to defray a part of the expenses. The first edition was nearly completely destroyed by a fire in Phila- delphia, and the war put an end to all further work. It is thus unfortunately left incomplete. During the war he served as a phy- sician in the Southezm army, and in spite of his old age was often compelled to share the rations and be exposed to the hardships of the common soldier. At the close of the struggle he was among the first who were willing to make all reasonable concessions for the restoration of peace, and who returned with unimpaired affection to his Northern friends, although the result had involved him in the common ruin. For the last years of his life he spent the summers in New England. He died on the 8th of September, 1871, at Norfolk, Massachusetts, at his sister's residence, in the village where he had spent his infancy and boyhood, surrounded by his family and friends. Dennis Hart Mahan was born April 2, 1802, in the city of New York. His boyhood was passed in Norfolk, Virginia. While pursuing the study of medicine with Dr. Archer, in Richmond, Virginia, he OF ARTS AND SCIENCES : JUNE 4, 1872. 475 received in 1820, through the influence of Hon. Thomas Newton, of the United States House of Representatives, an appointment as cadet at the United States Military Academy. Entering the Academy at the age of eighteen, he at once hecame the marked man of his class, and took the foremost rank. While only a third-classman, he was appointed acting assistant professor of mathematics On July 1, 1824, he graduated at the head of his class, and entered the corps of engineers of the army. He continued attached to this corps, with the rank of second lieutenant of engineers, until January 1, 1832, but saw no actual service, being always on detached duty. From 1824 to 1826, he was serving at the Military Academy ; the first year, as as- sistant professor of mathematics, the second, as principal assistant pro- fessor of engineering. The next four years, from August, 1826, to June, 1830, were spent in Europe, on professional duty, by order of the War Department. During the last year of this sojourn in Europe, he was, by authority of the French Minister of War, attached as a pupil to the military school of artillerists and engineers at Metz. At that time there was no other place or school which could give that special training which so thoroughly fitted him for the duties to which he was to be called immediately upon his return to his own country. Metz, with all the glories of its historic renown as the bulwark of France, was also the thorough exemplification of the best systems of fortification devised by the genius of Vauban and Cormontaigne ; and here, if anywhere, the earnest student would become thoroughly im- pressed with the love of his art, and initiated into all its mysteries. Mahan, on his return home, was at once appointed acting professor of engineering at the Military Academy, and finally, in 1832, was ap- pointed professor, — a post which he filled with distinguished honor until his death on the 16th September, 1871. In order to appreciate the full influence of his character and attain- ments in this position, we must go back to the period when he assumed its duties, and see what was the state of engineering science at the time. The student of the present day will find it hard to realize what the actual state of knowledge then was. Professional books were rare, and hardly existed except in foreign languages ; and the number of those who had the desire and ability to consult them was still rarer. Military engineering was a meagre conglomeration of a few detached practices rather than principles ; and civil engineering, not having yet received the impetus which the railroad system has since given it, 476 PROCEEDINGS OF THE AMERICAN ACADEMY could hardly be said to have an existence as a science. It became necessary for Mahan to create his own text-books ; and even as late as 1842, when the writer was a pupil under him, these text-books were, in many cases, lithographic notes prepared at the presses of the Academy, and lent to the students for their instruction. The whole subject of permanent fortification and stereotomy was thus taught, and there were no American books upon the subject existing at that time. Even in the more elementary descriptive geometry the only American book was by a professor at the Military Academy, and this omits en- tirely the " Theorie des plans cotes, which forms the basis of fortification drawing. But Mahan was one of those rare men who teach more by their personality than by their books. While it is true that he created books, and books which, though pioneers in their day, stand the test of comparison with the best works of later explorers, it is equally true that those who were so fortunate as to sit under his instruction learned much more than the books ever revealed. In the magic power of his personal communication with the pupil lay the great secret of his success as a teacher. The pupil who came under his searching eye felt that all shams were useless, that anything like pretension was at once exposed and rebuked, while true, honest effort always met with a cordial and hearty response, and found all the aids which it sought. The writer had the privilege of being not only his pupil, but, at a later period, his principal assistant ; and in this latter capacity he learned to know the value of this great teacher. With a nature peculiarly sensitive, and a very nervous organization, Mahan had so schooled himself that he had become truly judicial in his estimate of what- ever was presented to him. With a genuine love of science in any of its developments, he had naturally that instinctive abhorrence of char- latanry in its multiform manifestations, and that unsparing sarcasm ever ready for its exhibition, which led those who did not know him to regard him as cynical and morose. But none who had the honor of his friendship ever looked at him in this guise. To them he was the true, warm-hearted friend, to whose ready sympathy in everything that was right and honest they would appeal without hesitation ; but whom, on the contrary, they would dread to approach with any proposition of doubtful or even questionable probity. Though small of stature and thin of frame, Mahan had ever a commanding presence, before which presumption and arrogance felt rebuked ; and this per- OF ARTS AND SCIENCES : JUNE 4, 1872. 477 sonality made itself felt by even the most turbulent spirits in bis classes. His effect in this way, even upon those who were not quali- fied to directly appreciate his instruction, made no small part of his influence as a professor in our Military Academy. But Mahan's influence and the value of his life are not confined to the immediate scene of his labors. By his occasional writings, and by those of his published works which are less distinctly professional, he has stimulated the public mind in a much wider sphere. His work on civil engineering, which has gone through several editions, and been several times revised and almost rewritten by its author since its first publication, is still one of the best compendiums on the subject. His edition of Moseley's " Mechanics of Engineering," with its valuable additions and annotations, has brought to the notice of the American public one of the very best English works. Duinng our late war, his work on field fortifications — the best work on that subject in any language — and his minor work on outpost duty were in the hands of all of our militia officers who sought instruction in their duties. Science and education owe much to the labors of his long life, and the memory of that life will be preserved in the many works which he has left behind him. Brown and Princeton conferred upon him the honorary degree of A. M. in 1837, and he subsequently received that of LL. D. from William and Mary, Brown, and Dartmouth. In 1828, he was elected a member of the Geographical Society of France. He was a member of several scientific societies in this country, and one of the original fifty corporators of the National Academy of Science. To the interests of the Military Academy Mahan devoted the best energies of his life. Regarding it not merely as a school of military science, but as it really was, for a long period, the only scientific school worthy of the name in our country, his whole thoughts were given to the advancement of its prosperity ; and, as one of its Faculty, he jeal- ously watched every change in its educational system which tended to lower its high standard. Especially, in all the assaults which are periodically made upon it, was he found ever ready, by voice and pen, to repel those assaults, and vindicate the fair reputation of his Alma Mater. No one could do this better than he. With a thorough con- viction of the honesty of his cause, and a mind well stored with his- torical knowledge, he combined a ready command of language and a trenchant satire never exceeding proper bounds, which made every 478 PROCEEDINGS OP THE AMERICAN ACADEMY essay from his pen, and, still more, every word from his mouth, pro- duce its effect. The Military Academy has lost by his death, not only one of its ablest workers, but also one of its strongest and most fearless champions. Soon after the last annual examination of cadets, the rumor became prevalent that, by the recommendation of the Board of Visitors, this aged professor, now in his seventieth year, was to be removed from ac- tive duty at the Academy, and placed upon the retired list. Though on the score of years, and under the usage of the military service, he might have claimed this as his right, this unlooked-for action of the Board came to him, not as a measure of relief from arduous duty, but as a vital assault upou his life-long work and reputation. The shock was too great for him to bear ; and when he returned to his post in September, after the usual summer season of relaxation, it was but too evident that his sensitive brain had received a fatal blow. On the lGth of September he left West Point, with an attendant, by the steamer Mary Powell, for the purpose of consulting his physician in New York. When the boat was near Stony Point, he passed rapidly out of the saloon where he had been sitting, and rushing to the side of the boat, just in front of the wheel, he disappeared beneath the waters of the Hudson. Thus ended the life of this most distinguished son of our Military Academy, one of the ablest expounders of engineering science, one of the most zealous, judicious, and successful workers in the cause of education. Samuel Finlet Breeze Morse died at his residence in the city of New York on the 4th of April, 1872. He was born in Charlestown, Massachusetts, April 27, 1791. He was the eldest son of Jedediah Morse, D. D., an American clergyman and geographer, who was for thirty-one years pastor of the First Con- gregational Church in Charlestown. Mr. Morse was a graduate of Yale College, in the class of 1810. He went to Europe during the next year, making the voyage with Washington Allston, and became a pupil, in painting, of Benjamin West. In addition to his studies in painting, he gave attention to sculpture, and in 1813 received the gold medal of the Adelphi Society of Arts, for an original model of a " Dying Hercules." He returned to the United States in 1815. In 1824-25, with some other artists of New York, he originated a drawing association, which OP ARTS AND SCIENCES : JUNE 4, 1872. 479 resulted in the establishment, a year later, of the "National Academy of Design." He held the office of President of this society for fifteen years. In 1829, he again visited Europe, to complete his studies in art, and resided, about three years, in the principal cities of the Conti- nent. On the return voyage from France, in 1882, on the ship Sully, the feasibility of an electric telegraph was often the subject of conversation, and at that time he made drawings of apparatus intended for this purpose. His first instrument was finished at New York in 1835, and worked in one direction. In July, 1837, he had two instruments, one at each terminus, and could communicate in both directions. At the close of that year he was at Washington, a petitioner to Congress for aid to' construct an experimental line from that city to Baltimore. No appropriation was made during the session of 1837- 38, and he went again to Europe. A patent for his system of telegraphing was refused in England ; in France, he obtained a brevet cVinvention, but it proved to be of no value. He returned to the United States, and, after several years of disappointment and poverty, his appeal to Congress was successful, — the sum of thirty thousand dollars being appropriated on the 4th of March, 1843, for the purpose of encouraging his first attempt to con- struct a line of electric telegraph between Washington and Baltimore, a work which, after many difficulties, he completed in 1844. This system has now been in use twenty-eight years ; its simplicity, as compared with other kinds of electric telegraph, has favored its general introduction both at home and abroad. In this, as in all im- portant inventions, the practical result is reached by long and patient efforts of many minds, in various departments of scientific and mechani- cal labor. The world is greatly indebted to Mr. Morse for his perse- verance and earnest labor in combining the various parts that consti- tute the present " Electro-magnetic Telegraph." This system is now found in operation in all quarters of the world, and has, on many land lines, displaced the needle telegraph. It is not of value for the Atlantic cable or other submarine lines, as they are worked, in all cases, without the use of an electro-magnet. Mr. Morse received many honors and marks of distinction abroad, and from ten foreign governments the sum of four hundred thousand francs as an honorary and personal award for his useful labors. 480 PROCEEDINGS OF THE AMERICAN ACADEMY He was appointed one of the United States Commissioners to visit the Paris Universal Exposition of 1867, and make examination of telegraphic apparatus. His report on this subject was published in 1869. Charles Jackson, Jr., as he always called himself long after his father's death, was the only son of the Hon. Charles Jackson, one of the judges of the Supreme Court of Massachusetts from 1813 to 1823, and Fanny (Cabot) Jackson, his second wife. He was born on the fourth day of March, 1815. He was fitted for college chiefly at the schools of Mr. Daniel Green- leaf Ingraham and Mr. William Wells. He entered Harvard College at Commencement, in the year 1830, joining the Sophomore Class. Without aiming at college rank, he held a very creditable position as a scholar. On leaving college, he began the study of the law with his father, and continued it in the office of the Hon. Charles Greely Loring. He was admitted to the Suffolk Bar in 1836. The years 1837 and 1838 he spent in Europe. On his return, he gave his attention to the study of civil engineering, and was employed on the Western and Eastern railroads during the years 1839 and 1840. After 1840, he devoted himself to iron-making, becoming largely interested in mines and furnaces in Pennsylvania, and continued in this business to the close of his life. From his college days he was recognized as a man of singularly acute and original intellect. He took nothing on trust which he could study out for himself. With an ever-active thirst for knowledge, a marvellous rapidity and accuracy in acquiring information, and a memory so remarkable that some almost incredible feats are told of it, he was less generally known than many men much his inferiors who care more for fame or notoriety. He was full of knowledge on a great variety of subjects, and talked with an affluence of expression and a knowledge of facts which always commanded the attention of those around him. His business capacity was remarkable, and though he had some trying experiences early in his career, his indomitable courage and clear, cool head carried him safely through them all, and brought his extensive plans to a complete and eminently successful fulfilment. Mr. Jackson very rarely appeared before the public in any other OF ARTS AND SCIENCES : JUNE 4, 1872. 481 light than as a man of business. He wrote as he talked, with a facility and rapidity and fertility very rarely equalled, as many of his letters remain to show, — letters as impetuous, as ingenious, as close in argu- ment, as vivid in illustration, as if they were verbatim reports of his brilliant conversation. But I am not sure that he ever printed more than one paper, or delivered more than a single lecture. In the "North American Review" for October, 1852, is a paper written by him on the subject of the Great Exhibition. It is a very spirited essay, taking the side of the practical workman as an inventor against the pretensions of the man of science. All the characteristics of his mind are very well represented in this essay, which can be read to-day with as much instruction and entertainment as when it was written. He may have pressed his argument at some points, but it is a very striking plea for the discoveries and inventions of the workshop as against those of the laboratory. In the winter of 1853-54, Mr. Jackson delivered a lecture, in the course instituted by the Academy, on the " History of the Useful Arts." This lecture was distinguished by the same qualities which character- ized the essay in the "North American Review." Some of its con- clusions were startling; but, if not proved, they were supported by such an array of facts, so ingeniously presented, as to offer a formidable front to an opponent. Most of the inventions claimed by Englishmen, as I remember this lecture, were proved or alleged, with a greater or less show of evidence, not to have come from men of Anglo-Saxon birth, that particular stock never having distinguished itself by inventive talent. The lecture was listened to with great interest, and some of its conclusions were, I think, controverted ; but it was an effort which showed the keen iconoclastic radicalism of his intellect in its fullest development. Mr. Jackson's personal character, his fidelity in friendship, the warmth of his attachments, his generous hospitality, added to the attractions of his companionship, made him a great favorite with those who enjoyed the privilege of his intimate acquaintance. He died, after a protracted illness, on the 30th of July, 1871, leaving a widow and three children, two sons and a daughter. His eldest daughter, the wife of the Rev. George Folsom, died one month before her father. VOL. VIII. 61 482 PROCEEDINGS OF THE AMERICAN ACADEMY James Davenport Whelplet was born in the city of New York, January 23, 1817, and died in Boston, April 15, 1872. His father, Philip Melancthon Whelpley, was pastor of the First Presbyterian Church in New York City. His grandfather was the Rev. Samuel Whelpley, a distinguished writer and theologian. His mother was Abigail Fitch Davenport, a granddaughter of the Rev. John Daven- port, one of the founders of the New Haven colony. He was sent to school at New Haven, where, at ah early age, he showed a decided taste for chemical study and experimentation. He entered Yale Col- lege in 1833, and was graduated in 1837. In his Senior year he published in the " American Journal of Science " a paper " On two American Species of the Genus Hydrachna," in conjunction with Mr. J. D. Dana, then assistant to Professor Silliman. Soon after leaving college he joined the corps of Professor Henry D. Rogers, then occupied in surveying the anthracite region of Penn- sylvania. After three years' service upon this survey, he studied at the Medical School in Pittsfield, Massachusetts, and, having received the degree of that school, he practised medicine in Brooklyn, New York, until forced by ill health to relinquish his profession. He then returned to New Haven, and devoted himself to scientific and literary study for a period of eight years. At this time, he con- ceived the idea of a Philosophical System, to the development of which he devoted much time and thought. Some fragments of this work have been published in the " Proceedings of the Academy," and else- where, and much manuscript matter relating to it remains in the pos- session of his family. During his residence in New Haven, he published in the "American Journal of Science " (1845) a remarkable memoir on the " Idea of an Atom, suggested by the Phenomena of Weight and Temperature." In 1847, he went to New York, and became editor and partial owner of the " American Whig Review." In 1849, while occupied in editing the Review, he conceived the idea of establishing a commercial colony in Honduras, for the purpose of developing the resources of that coun- try, and bringing it into closer relations with the United States. He at once proceeded to obtain from the Honduras government grants of land and various commercial privileges, and spent two or three years in San Francisco editing a daily newspaper, which he had purchased there, as a means of making his plan known. He had secured a large number of emigrants, and was engaged in perfecting the arrangements OF ARTS AND SCIENCES : JUNE 4, 1872. . 483 for establishing his colony, when he learned that the filibuster Walker had taken forcible possession of Honduras. Dr. Whelpley immedi- ately left San Francisco with an armed party of fifty men, to protect the interests of his projected colony. But his party was captured by that of Walker, and Dr. Whelpley was himself impressed into Walker's service, and put in charge of the sick and wounded men. He was detained by Walker for nearly a year, suffering meanwhile great privations. He finally escaped to San Francisco, and thence returned in 185G to New York, where he supported himself for a time by writing short articles for the magazines upon the most varied sub- jects, — History, Politics, Music, and Romance, as well as Science. Some of these literary diversions, published in the " Atlantic Monthly," bear witness both to the fluency of his pen and to his extraordinary power of imagination. Henceforward, in spite of frequent severe attacks of asthma and other pulmonary troubles, and almost incessant physical pain, he devoted much time to the study of mechanics, and the invention of machines for saving labor and fuel. His exceedingly ingenious and efficient devices for crushing and pulverizing rocks and ores, for burn- ing fuel in the state of powder, and for applying the heat of the fuel thus burned to the reduction of metallic ores, and to the generation of steam, are familiar to many members of the Academy. Descrip- tions of them have been widely published in the journals relating to mechanics and metallurgy. An ingenious steam-engine of his own invention was exhibited at the Institute of Technology in the winter of 1869-70. During the last twenty years of his life he was deeply interested in the study of engines, — hot air, gas, and steam, — and he has left nearly three hun- dred original designs for their construction. His most recent contribu- tion to scientific literature was a series of articles in Van Nostrand's " Engineering Magazine." The last of these papers, published in Jan- uary, 1872, was entitled "A Critical Examination of the Ideas of Inertia and Momentum." Dr. Whelpley was remarkable both for his power of abstract rea- soning and for the vivacity and scope of his imagination. His was essentially a deductive and inventive mind. Its chief defect was its immense versatility. By mere power of concentration and force of will, he kept at bay the physical pain and distress incident to the pul- monary disease which harassed his later years. The most severe 484 PROCEEDINGS OF THE AMERICAN ACADEMY illness hardly seemed to impair in the least degree the acuteness of his intellect ; though, during the last few years of his life, his condition was such that he was compelled to avoid all social intercourse, and to abstain absolutely from discussion. It was a source of deep regret to him, that he could not even attend a meeting of the Academy, much less present or defend his views before it, except under the penalty of great pain and alarming illness. From a final attack of this kind was developed the acute consumption of which he died. Dr. Whelpley was a man of rare conversational powers and ready wit, and he had a great fund of information in matters relating to literature and the arts and sciences. He possessed, moreover, in a marked degree, the power of attracting to himself devoted friends. He was esteemed by those who knew him intimately to be a high-minded, honorable gentleman, of warm impulses and attachments, and generous and self-sacrificing to a fault. Six hundred and forty-seventh Meeting. September 10, 1872. — Stated Meeting. The President in the chair. The Corresponding Secretary read letters from Professor Jowett, of Oxford, and Professor Rammelsberg, of Berlin, ac- knowledging their election into the Academy. The President announced the death of M. Delaunay, Foreign Honorary Member, and of General Sylvanus Thayer. The President called attention to a bound volume of several articles, in manuscript, of Count Rnmford, presented by Pro- fessor Dumas to the Library of the Academy. It was voted that the thanks of the Academy be tendered to Professor Dumas for this most acceptable donation. The President called attention to the loss the Academy had sustained in the death of Dr. Francis Dana, for many years Assistant Librarian. Six hundred and forty-eighth Meeting. October 9, 1872. — Adjourned Stated Meeting. The President in the chair. The President announced the death of Professor Francis Lieber, of New York, Associate Fellow of the Academy. OF ARTS AND SCIENCES I NOVEMBER 12, 1872. 485 Professor J. P. Cooke read the Annual Report of the Rum- ford Committee, and, in accordance with its suggestion, it was voted to appropriate one thousand dollars to continue the pub- lication of the works of Count Rumford. On the motion of the Treasurer, it was voted to appropriate : For General Expenses . . . . $ 2,100.00 For Publication 800.00 For Library 500.00 It was voted to authorize the officers of the Academy to reserve two hundred and fifty copies of the Life and Works of Count Rumford, to be preserved intact until the completion of the Works. It was voted to authorize the officers of the Academy to dis- tribute freely the Life and first volume of the Works of Count Rumford among learned societies and scientific men. It was voted to authorize the Rumford Committee to com- plete the stereotyped plates, and print a small edition of the second volume of the Works of Count Rumford. Professor T. S. Hunt presented a communication on the formation of agates in the Lake Superior region. Professor W. A. Rogers described some experiments he had been making in etching fine lines on glass. The President called attention to a copy of the work on the " Physiological and Therapeutical Action of the Bromides of Potassium and Ammonium," by Drs. E. II. Clarke and R. Amory. Six Hundred and forty-ninth. Meeting. November 12,1872. — Monthly Meeting. The President in the chair. The Corresponding Secretary read a letter from Sir William Thomson, acknowledging his election into the Academy. The President announced the death of General George G. Meade, Associate Fellow, and of Mr. Charles Folsom, Resident Fellow, of the Academy. 486 PROCEEDINGS OF THE AMERICAN ACADEMY The Recording Secretary was authorized to send reports of the meetings of the Academy to the editor of " Nature," for insertion in that journal. Mr. S. P. Sharpies presented a communication on the com- parative purity of various sources of water-supply in the neigh- borhood of Boston. Six Hundred and fiftieth Meeting. November 27,1872. — Adjourned Stated Meeting. i The President in the chair. The Corresponding Secretary read a letter from Mr. Sang, enclosing specimen pages of a table of logarithms to nine places, which was referred to the Recording Secretary. The President announced the death of Professor James Had- ley, of New Haven, Associate Fellow of the Academy in Class III., Section 4. The following gentlemen were then elected Resident Fellows of the Academy : — Professor W. R. Nichols, of Boston, to be a Resident Fellow in Class I., Section 3. Professor C. L. Jackson, of Cambridge, to be a Resident Fel- low in Class I., Section 3. Professor C. O. Boutelle, of Cambridge, to be a Resident Fellow in Class I., Section 4. Mr. J. M. Merrick, of Boston, to be a Resident Fellow in Class I.,. Section 3. Mr. N. St. J. Green, of Cambridge, to be a Resident Fellow in Class III., Section 1. It was voted to appoint a Committee on Communications, consisting of Professor James M. Crafts, Dr. E. H. Clarke, Professor A. Agassiz, and the Recording Secretary. Professor A. Agassiz presented a communication on the de- velopment of Balanoglossus. Professor T. S. Hunt made a communication on a paper by Mr. Mallet on the cause of volcanic activity. OP ARTS AND SCIENCES : DECEMBER 10, 1872. 487 Dr. Henry I. Bowditch alluded to a case of aortic aneurism in which he had, with the assistance of Drs. J. C. Warren and J. J. Putnam, used electricity for the treatment of this usually fatal disease. The patient, an adult man, had a pulsation distinctly felt in the sec- ond right intercostal space, which last, with the parts adjacent, was slightly prominent, but not effaced. The respiratory murmur was free throughout both lungs, save in this part, and there it was bronchial to the extent of two or three inches ; dull percussion in the same. Two operations have been made, namely, on November 12 and 17, 1872. Three needles coated with vulcanite were used at each operation. They were introduced about an inch at the first, and from an inch and a quarter to an inch and a half at the second operation. They evidently were introduced into a freely moving current at the first, as seen by the widely moving needle-ends, but into a more solid mass at the sec- ond. The positive pole of the battery alone was applied to them, the negative resting on the right breast on a level with the tumor. The number of cells used (Stohrer's battery) were gradually raised from two up to sixteen at the first, and to twenty-eight at the second. The operations lasted fourteen and a half and fourteen minutes. A little faintness and pulselessness were noticed at the termination of each. They soon passed away. The result of the two operations has been a great solidity of the tumor, with considerable swelling of parts adjacent, which swelling is now (November 26) subsiding. No superficial red- ness or sloughing of the skin occurred. No air appeared in the tumor, as noticed often in Europe, where needles attached to both poles are usually introduced ( Vid. Ciniselli Annali di Medicina, November, 1870 ; Eraser's Edinburgh Medical and Surgical Journal, August, 18G7). The patient has not suffered at all from the operations. It is impossible, as yet, to say what influence they will have towards his radical cure. But he is more comfortable than before the first operation. Six hundred and fifty-first Meeting. December 10, 1872. — Monthly Meeting. The President in the chair. The Corresponding Secretary read letters from Professor 488 PROCEEDINGS OF THE AMERICAN ACADEMY Nicholas St. John Green, and from Professor "William Ripley Nichols, acknowledging their election into the Academy. It was voted to grant the use of the Hall of the Academy on the morning of Thursday, December 12, to the Massachu- setts Historical Society. The President called the attention of the Academy to a vol- ume richly illustrated, entitled " Revision of the Echini," by Alexander Agassiz. Alexander Agassiz then exhibited specimens of the Alber- type and Woodburytype methods of photo-engraving employed in illustrating his work. The Recording Secretary exhibited a new form of Theodo- lite-Magnetometer. A letter was then read from Dr. Robert Amory, describing some specimens of objects exposed to the fire of November 9, which led to a discussion in which most of the members pres- ent participated. Six hundred and fifty-second Meeting. January 14, 1873. — Monthly Meeting. « The Corresponding Secretary in the chair. The Corresponding Secretary read a letter from Professor Diillen, of Pulkowa, acknowledging his election, as Foreign Honorary Member, into the Academy. Professor J. M. Peirce read the following paper by Professor J. M. Rice of Annapolis, and Professor W. W. Johnson of St. John's College, Maryland, " On a New Method of obtain- ing the Differentials of Functions, with especial reference to the Newtonian Conception of Rates or Velocities." The fundamental conceptions which have been employed in the de- velopment of the elementary theorems of the Differential Calculus are four in number, namely, that of Infinitesimal Differences, that of Limits, that of Derived Functions, and that of Rates or Fluxions. While the first and more recently the second have received greater attention and more systematic development, the last, the Conception of Rates, has. an important advantage in the readiness with which its OF ARTS AND SCIENCES: JANUARY 14, 1873. 489 definition is apprehended in consequence of the familiarity of the phenomena of motion* The most important objections which have been made to the " Method of Fluxions," as developed by Newton and his followers, are those directed against the methods employed in deducing the flux- ions of the different functions. These are usually geometrical methods, often indirect and wanting in generality, even when founded upon well- known and satisfactorily demonstrated properties. The algebraic methods, also, which are employed, are frequently dependent upon an objectionable use of infinite series. While a constant rate is easily measured by the increment received in a unit of time, a difficulty is encountered when an attempt is made to employ increments in the measurement of a variable rate. This difficulty probably gave rise to the common method, in which a com- parison of rates is effected by the conception of simultaneous infini- tesimal increments ; to these, while divested of magnitude, ratios are ascribed which are really the ratios of the rates of quantities simulta- neously varying. The method of limits is another device for obtaining the values of the same ratios. This last expedient, having been adopted by Maclaurin (perhaps the ablest writer on Fluxions), the impression has become prevalent that recourse to it affords the only satisfactory method of treating the sub- ject of rates. The following is an attempt to supply a direct method of proving the elementary theorems of the Differential Calculus, which is inde- pendent of all consideration of limits, of infinitesimals, and of alge- braic series. Definitions and Notation. When a quantity varies uniformly, the constant numerical measure of its rate is the increment received in the unit of time. When, how- ever, the variation is not uniform, we would define the numerical measure of the rate at any instant as the increment which would be received in a unit of time, if the rate remained uniform from and after the given instant. This definition corresponds with the usage of mechanics, in accord- * See Art. 42, p. 72, Traits d&nentaire de la Th€orie des Fonctions et du Calcul Infinitesimal. Par Cournot. Paris, 1841. vol. vin. 62 490 PROCEEDINGS OF THE AMERICAN ACADEMY ance with which a body moving with a variable velocity is said to have at a given instant a velocity which would carry it thirty-two feet in one second. To avoid departing too much from well-established usage, the term differential will be frequently used in this paper instead of rate. The rate or differential of x will be denoted by D x, and that of f, x by Z> (/,*). The rate of the independent variable, or the value of Dx, is re- garded as arbitrary in the same sense that the value of x is arbi- trary. . Thus, particular values of these two quantities may constitute the data of a question like the following: What is the value of D (a:2), when x has the value 10 and Dx the value 4? To differentiate a function of x is to express D (f, x) in terms of x and D x in such a mariner as to furnish a general formula by which D(f, x) may be computed for any given values of x and of Dx. Elementary Propositions. The following propositions are immediate deductions from the above method of measuring rates : — I. The Differential of x-\-h. Since any simultaneous increments of x and of x -j- h must be iden- tical, the increments which would be received by each, if they con- tinued to vary uniformly with fhe rates denoted by Dx and D (x-\-h), are equal. Hence the rates are equal, or D{x-\-h)—Dx. II. The Differential of x-\-y. Since any increment of x-\-y is the sum of the simultaneous incre- ments of x and of y, the same relation exists between the increments which would be received if x and y (and consequently x -\-y) con- tinued to vary uniformly with the rates denoted by Dx, Dy, and D(x-\-y). Hence D(x + y)=Dx + Dy. III. The Differential of mx. Since any increment of m x must be m times the corresponding in- crement of x, the same relation must exist between the increments OF ARTS AND SCIENCES: JANUARY 14, 1873. 491 which would be received if x (and consequently mx) continued to vary uniformly with the rates denoted by D (x) and D(mx). Therefore D (/» x) =m D x. The Ratio of the Rates of a Variable and its Function. Let y denote a linear function of x such that y=zmx-\-b. [1] By propositions I. and III. D y = m D x, Px = m. [2] In this case, the ratio of the rate, or differential, of the function to that of the independent variable is constant, its value being indepen- dent not only of x, but also of Dx. Thus, if we give to Dx any arbitrary value, it is evident from equation [2], that Dy must take a corresponding value such that the ratio of these quantities shall always retain the constant value m. Assuming rectangular co-ordinate axes, if y be made the ordinate corresponding to x as an abscissa, the point (x,y) will, as a; varies, generate a straight line. The direction of the motion of the point is D y constant, and depends upon the value of m. Since =r- is equal to m, it is the trigonometrical tangent of the constant inclination of the direction of the generating point to the axis of x. When y is not a linear function of x, the direction of the motion of the generating point is variable, and consequently the value of =— is variable. Making, now, the arbitrary quantity Dx a constant, Dy will be a variable. Suppose, then, that, the generatrix having arrived at a given point, the ordinate y continues to vary uniformly with the rate de- Dy noted by D y at the given point; the value of ^r— will become con- stant. The generatrix will now continue to move uniformly in the direction of the curve at the given point, and therefore the value D y which yt nas at ^s Pomt i3 tnat °f tue trigonometrical tangent of the inclination of the curve to the axis of x at this point. The line 492 PROCEEDINGS OF THE AMERICAN ACADEMY now described by the generatrix is called a tangent line to the curve, in accordance with the following general definition : The tangent line to a curve at a given point is the line passing through the point, and having the direction of the curve at that point. IV. The Ratio of the Rates is independent of their Absolute Values. Since the direction of the curve (or of the tangent line) at the point having a given abscissa is determined by the form of the function, or By equation, to the curve, the value of — , which is the trigonometrical tangent to the inclination of this direction, must be independent of the arbitrary quantity Dx, which merely determines the velocity of the generating point. D ( f x) . D (f,x) In general, the value of — \r' J will change with that of x ; — ' ' is, therefore, independent of Dx, but is generally a function of x. D (f x), when expressed in terms of x and of D x, is of the form D (f x) = (j> x . Dx in which <£ x is another function of x. In the ordinary methods, the introduction of an equivalent proposi- tion is, for the most part, avoided by rejecting from the ultimate value of A (/, a:) all terms containing powers of Ax higher than the first. We shall now proceed to deduce, from the four elementary proposi- tions hitherto proved, the differentials of the functions both algebraic and transcendental. These propositions are here recapitulated for convenience of reference : — I. D{x-\-h) = Dx. II. D(x-\-y) = Dx + Dy. III. D (mx)=.m D x. D( f x) IV. — ir ' ■ is independent of D x, but is generally a function of x. The Differential of the Square. Let z = x-\-h, then Dz = Dx, [1] and z2 = x2-\-2hx + h'2, and D (z2) = D (a:2) + 2 h D x. [2] Dividing [2] by [1], ^ ■ = —l^-\-2h,ands'mceh = z — x, OF ARTS AND SCIENCES: JANUARY 14, 1873. 493 » D (z°) D (x-) Since ^ is a function of z only, and ^ a function of x only, Dz •" Dx ■" while 2 and x are any two values of the independent variable (h being arbitrary), the functional expression which constitutes either member of equation [3] does not change its value with the independent vari- able, hence " n — 2 x = c (a constant), [4] or D(x2) = 2x Dx + cDx. [5] To determine the unknown constant c, we differentiate, by equation [5], the identity (m x)2 == m2 x2, obtaining 2mx-mDx-{-cmDx = m22xDx-\-m2cDx, or c m (1 — m) Dx = 0. c = 0, since m and D x have ai'bitrary values, JD(x2) = 2xDx. [a] Equation [a] may also be deduced from [3] by the following method : — In equation [3] not only are x and z entirely independent, since h is D (z2) arbitrary, but D x and D z are no longer restricted, for J. will not change its value if we suppose Dz to have apy value greater or less than D x. We may therefore put z=z mx. Introducing this value in [3], we obtain D(m*x*) ' D(?*) D (mx) D x ROD. 9 #Q2) o or m ^ — 2 mx= S: — 2 x; Dx Dx Whence, since m is arbitrary, Dx 494 PROCEEDINGS OF THE AMERICAN ACADEMY The process used in the case of those functions whose differentials it is desirable to deduce independently is, in each instance, similar to that used above in the case of D (or), and may be thus described :: — We assume a new variable z, connected with a; by a relation admit- ting of a comparison of Dz and Dx, and at the same time such, that D (f,z) and D (f,x) may likewise be compared; in other words, such that the relation between z and x, and also between f, z andy, x, can be differentiated without the introduction of unknown differentials, except those denoted by D (f,x) and D (f z). ■d j- • • .1 .- J> (/> *) J D (/> Z) J J • By division, the ratios — £.- — - and — ~~ — - are introduced in a sin- J Dx D z gle equation. The arbitrary constant introduced in the assumed relation between z and x is then eliminated, and the equation reduced to such a form that one member is apparently a function of z, and the other of x. This last process we call the separation of the variables. As x and z may denote any two values of the independent variable, the apparent functions mentioned above will necessarily be identical in form, and (since they constitute the two members of an equation) iden- tical also in value. This value will be constant, since either member of the equation is a functional expression, which does not change its value with x. The determination of this constant is then effected by the differentia- tion of some algebraic identity. The Differential of the Product. From the above expression for D (x2), we obtain the Differential of the Product, thus : — (x-\-yy = x2-\-2xy-\-y\ 2(x + y)(Dx + Dy) = 2xDx + 2D(xy) + 2yDy, or xDx-\-yT>x-\-x Dy-\-yDy = xDx-\-D (xy) -\-y Dy, D (xy)=y Dx-\-x Dy.* [b] From this result the Differential of the Qiiotient is easily obtained. 'The Differential of the Power. Let z = rx, then Dz = r Dx, [1] and zm = rm xm, then D (zm) = rm D (xm), [2] * This method of deriving D (xy) from (Dx2) is taken from Vince's Fluxions. OF ARTS AND SCIENCES : JANUARY 14, 1873. 495 D Om) _ j. D (*m) Dividing [2] by [1], Dz rDx ' , . z D (zm) zmJl D (x") and, since r = -, — ^— - = — r — ^r-A a;' Z>z a;"1"1 Dx Separating variables, by dividing by z?l~\ J_ D(z") _ _ J_ Dpc") r31 By a train of reasoning precisely similar to that employed in ob- taining equation [4] of the article on D (x2) 1 D(xm) n rA1 we Prove ^i -J^T = °m L4] Cm being used to denote the constant, because it may be a function of m. From [4] D (xm) = Cm x^Dx. [1] By similar notation D (xn) = Cn x""1 D x, and D (xm+n) = Cm+n x^'1 Dx. To determine Cm. If m = 1 in equation [1] Dxlz= Gxx° D x 4=1. [2] Differentiating the identity Om+n x™*"-1 Dx = xn Om xm-x Dx + x™ Cn a;""1 D x, and dividing by as"1^"1 X>x, cm+n = om + q. [3] making m = n C^ = 2 C„, making m = 2n C3n = 3 C„, &c. Cpn = p Gn ; O being a positive integer). [4] Making n = 1 in [4], Q, = p Ci = p. [5] 496 PROCEEDINGS OF THE AMERICAN ACADEMY Again, in [4], putting n = -, q and p being positive integers, p C1 = Cq = q ; p whence On = -. [6~\ p x Again, in [3], making m =±= o, C0 = o, and, making m = — n, Cn = — Cn, or, making n = -, 0„ = — -• l~71 From [6] and [7] we have generally Om = m, and substituting this value of Cm in [1], D (xm) =' m x"1-1 D x. [c] The Differential of the Logarithmic Function. Let z = mx, then will Dz = m Dx, [1] and log z = log m -\- log x, and D (log z) =Z> (log x). . [2] Dividing [2] by [1], D (log z) D (log x) x D (log. z) D z m . D x z Dx ' since !■= *, ... • J ^ z) = x * (7\°g *> = A [3] m z Dz Dx L J B denotes a constant depending upon the base of the system of logarithms. Denoting by b this base, and by log 6 a corresponding logarithm, we have D (log bx) = ^, [4] and by similar notation D (log ax) = . A relation between A and i? is found by differentiating the identical equation log ax = log ab log bx, ., , , . . ^4 Z>rr , r BDx thus obtaining = log ao • , whence A = B • log ab = log aSB ; a-1 = J». OF ARTS AND SCIENCES : JANUARY 14, 1873. 497 The form of this equation shows that the value of the expression bB is independent of the value of b ; it is, therefore, a numerical con- stant, and may be denoted by e. i.e. bB = e ; B\ogeb = 1, l whence B = loge b' Introducing this value of B in equation [4], we obtain D (log6 xj*= , Dl . K cb ' loge b. X Dx * If b = e, we have D (loge x) = — . [e?] a e is known as the Napierian base. The computation of its approxi- mate numerical value is deferred until after the introduction of Mac- laurin's Theorem. The logarithmic differentials of the Power, Product and Quotient may be deduced by means of the above result, in the usual way, since •the demonstration is dependent on the four elementary propositions only. The Differential of the Exponential Function. Let z = x -\- h, then D z = D x, [1] also az = aI+h = ah • ax [3] and D (az) = ah D (ax). [2] Dividing equation [2] by the product of [1] and [3], we obtain the desired form 1 D(az) 1 D(ax) az D z ax Dx Whence D {ax) — c ax D x. [4] To determine c, we differentiate the identity x = loga ax, _ D (ax) cax D x tbus D x — \^r~n — ^ = \zr~r. — ^ » loge a • a l°ge o. • ax C = loge a' vol. vin. 63 498 PROCEEDINGS OF THE AMERICAN ACADEMY Substituting this value of c in [4], we obtain D (ax) = log, a-ax ■ Dx. [e] The Differentials of the Trigonometrical Functions. Let z = x-\-h, then Dz= Dx, [1] also sin z = sin x cos h -\- cos x sin h, = cos h ' sin x -\- sin /j y/ 1 — sin2 cc. n/. . , rw • \ i •? — 2 sin x D (sin z) x> (sin z) = cos A • D (sin a:) -J- sin n . — • ■* V 1 — sin3 x = [cos h — sin h • \D (sin x). [2] COd JO I Combining [1] and [2] D (sin z) D (sin #) cos A cos x — sin h sin x D z D x cos x cos 2 Z> (sin x) cos a: D x ' or, separating variables, [3] 1 ■ D (sin 2) 1 ^ J> (sin z) cos z D z ' cos a; Dx ' D (sin x) = c ' cos x • D x. [4] To determine c (x being the circular measure of the angle) Put cos x = sin I -- — x j. By [4] D (cos x) = c • cos ( ^ — a: ) D (^ — xj , or D (cos a;) = — c sin x D x. [5] From [4] and [5] D (tan a;) = c sec2 x D x. * [6] Now in [4] c cannot be greater than unity, for if it were, D (sin x) would exceed D x for all values of x less than a certain value. Hence, x and sin x starting together from zero, sin x would, for these values, exceed x, which is impossible. Again, from [6] c cannot be less than unity, for then D (tan x) OF ARTS AND SCIENCES : JANUARY 14, 1873- 499 would be less than Dx for values of x below a certain fixed value, and x and tan x, starting together from zero, tan x would be less than x for these values, which again is impossible ; G= 1. Introducing this value of c in [4] [5] and [6] we obtain D (sin x) = cos x Dx. {.f~\ D (cos x) = — sin x D x. \_g~\ D (tan x) = sec2 x Dx. [A] The President communicated the following letter : — Cordoba, November 7, 1872. To the President of the American Academy of Arts and Sciences. Dear Sir, — Upon my departure from home on the undertaking in which I am at present engaged, the Academy had the goodness to aid my plans materially by appropriating the sum of $ 500 in gold from the Rumford Fund for the purpose of supplying me with a star spectroscope and astronomical photometer, — with permission to transfer them at the same price to the Argentine government for permanent use in this hemisphere, in case that the means for their purchase by the National Observatory should become available. The instruments were ordered without delay, and are now in my possession, in good order. But the numerous delays arising from the German war of 1870 postponed both the construction and the transpor- tation of the apparatus ; and the instruments did not reach Cordoba until all my energies had been so severely tasked in other directions as to preclude me from undertaking any spectroscopic or photometric observations for the present. I had hoped to offer to the Academy some results obtained with these instruments, in recognition of the valuable aid so opportunely and ^generously afforded ; and I do not yet relinquish the hope of so doing at some future time. Meanwhile I have the satisfaction of being able to announce that the funds have been provided for the acqui- sition of these instruments by the observatory, and have the honor of transmitting them herewith to the Academy, with my cordial thanks. It may have some interest for the Academy to know that, in the two years which have elapsed since my arrival in Cordoba, the observa- 500 PROCEEDINGS OF THE AMERICAN ACADEMY tory buildings have been erected and equipped, where before that time was a desolate and waste expanse of broken ground, almost untrodden, except by prairie-dogs, foxes, and iguanas. A thorough survey of the entire southern heavens has been made, comprising a determination of the positions and brightness of all stars to a limit below the seventh magnitude inclusive, and the whole work then repeated for the two- fold purpose of detecting errors and of recognizing any important changes in the stars themselves. This revision will in all probability have been completed before the close of 1872. Standards of magni- tude have for the first time been established for each tenth of a unit, as far as the eighth magnitude, throughout the circumference of the heavens, and selected in that portion of the Northern Hemisphere which has an equal meridian altitude for this observatory and for the average of northern ones. A thorough revision of the constellations of this hemisphere has been accomplished, and definite boundaries established, which, if accepted by astronomers, .as I have reason to be- lieve will be the case, will put an end to the confusion that has hitherto existed. The zone observations for a Southern Catalogue have been organized and are now going on systematically through the whole re- gion between the Tropic of Capricorn and the eightieth degree of South Declination, the positions of nearly seven thousand stars having been already determined. Three campaigns for longitude determinations by telegraph have been carried out with the view of improving the map of the continent ; and when the pending determination of the longitude between this observatory and the National Observatory of Chile shall have been completed, the positions of many points in South America will be known with a precision cuneate-oblong, 6-9" long, green and appressed-silky above, only the rounded or truncate apex serrate with 3-5 teeth ; flowers 8 — 5, on slender pedicels ; bractlets narrow, shorter than the acute sepals ; petals 2 — 3" long, obcordate, exceeding the calyx ; carpels 15 - 20. — From the Saskatchewan to the Rocky Mts. of Colorado. fft Leaves ternate (quinate in P. maculata, and very rarely qui- nate or pinnately 5-foliolate in P. nivea) ; low, arctic or alpine, sparingly villous or subglabrous (densely tomentose or villous in P. nivea and fragiformis) ; flowers few, in a loose cyme, or soli- tary, the obcordate petals exceeding the calyx ; carpels 10 - 40. 18. P. nivea, L. (P. Vahliana, Lehm.) Pubescence silky-villous, often abundant, densely white-tomentose on the under .side of the leaves and sometimes upon the calyx; stems 2-12' high; leaflets cuneate-obovate or -oblong, 3 - 8" long, coarsely incised-serrate or pin- natifid, the terminal one sessile or petiolulate ; flowers few or solitary on slender pedicels ; bractlets acute or acutish, shorter than the sepals ; petals 2 - 4" long ; carpels few or many. — Labrador, Greenland, throughout Arctic America and in the Rocky Mts. southward to Colo- rado and the Uintas. P. Vahliana seems to be but a reduced large- flowered form. The var. concolor, R, Br., without tomentum, is to be referred to P. emarginata, having the peculiar calyx of that species. Most Labrador and some Greenland specimens, which have been con- sidered P. nivea, are for the same reason rather to be carried to emar- ginata, though more or less tomentose. Some Rocky Mountain specimens so simulate reduced forms of P. Hippiana or gracilis, that, but for their ternate leaves, they might as well be so considered. The following variety makes the connection yet more close. OF ARTS AND SCIENCES : MAY 13, 1873. 559 Var. dissecta. Leaves digitately or pinnately 5-foliolate, the leaf- lets deeply pinnatifid ; dwarf, the stems 1-2' high, 1 - 3-flowered. — In the Rocky Mts. of British America and Montana (3G8 Drummond ; Douglas ; Howard) ; and in the Uintas, Utah (335 Watson, in part), at 12,000 feet altitude. 19. P. fragiforjiis, Willd. Villous with long silky hairs ; stems ^-1° high ; stipules large, oblong, acuminate ; leaflets cuneate-obovate, 6 -15" long, sessile, coarsely incised-serrate ; flowers few or solitary, very large ; bractlets ovate, obtuse, shorter than the ovate acute sepals ; petals obcordate, 3 - 6" long, exceeding the calyx. — Aleutian Islands (Pallas); St. Paul's Island (Harrington). Var. villosa, Regel & Tiling. (P. villosa, Pall.) Densely white- tomentose, the upper surface of the leaves darker. — Alaska to Van- couver's Island; Mt. Ranier, Washington Territory (Tolmie). 20. P. maculata, Pour. (P. Salisburgensis, Hsenke. P. opaca, Pursh, not L.) Sparingly villous with long spreading hairs, the pedi- cels subtomentose ; stems ascending, 3-6' high, loosely few-flowered ; stipules ovate to lanceolate, entire ; leaflets 5, rarely but 3, cuneate- obovate, i - 1 ' long, rounded and incisely serrate at the apex ; bractlets obtuse or obtusish, a little shorter than the acute sepals ; petals cuneate-obcordate, 3 - 4" long, exceeding the calyx. — Labrador ; Greenland. 21. P. emarginata, Pursh. (P. nana, Lehm. P. nivea, var. concolor, R. Br.) Rather more villous than the last, the pedicels densely tomentose, the leaves rarely tomentose beneath ; stems ascend- ing or erect, 1-3' high ; leaflets obovate, 2 - 6" long, the terminal one shortly petiolulate or sessile, very coarsely incised, the 3-5 segments villous-tufted ; flowers 1-2, mostly solitary. ; bractlets and sepals equal, broad, obtuse ; petals 2 - 3" long, considerably exceeding the calyx ; carpels numerous. — Labrador ; Greenland ; Kotzebue Sound ; Rocky Mountains (Drummond). P. nana is the more reduced form. 22. P. gelida, C. A. Meyer. (P. flabellifolia, Hook.) Nearly glabrous, with a scanty minute or villous pubescence ; stems slender, 6-10' high, 1- 3-flowered; stipules oval or oblong, mostly entire; leaflets very broadly cuneiform, 6 - 9" long, rounded at the apex and incisely 7 - 9-toothed, entire at base, the middle leaflet shortly petiolu- late ; bractlets and sepals nearly equal, obtuse or acute ; petals 2 - 3" long, obcordate, a little exceeding the calyx; carpels numerous. — Washington Territory and Oregon; Mt. Ranier (Douglas); Crater 560 PROCEEDINGS OF THE AMERICAN ACADEMY Pass (Newberry) ; Cascade Mts. (Lyall). Our plant seems to accord perfectly with the Asiatic species. 23. P. Grayi. Pubescence scanty, villous ; stems slender, 3 - C high, 3 - 6-flowered ; stipules ovate or oblong, entire ; leaflets very broad and suborbicular, y long, the truncate or rounded apex 5-7- toothed, the middle leaflet long-petiolulate ; sepals acute, the bractlets but half as long and obtusish ; petals 2 - 3" long, orbicular, retuse, ex- ceeding the calyx; carpels 15-20. — Yosemite Valley (Bolander ; Gray) ; Lake Tenayo (Brewer) ; Gray's Peak, Colorado (Gray). 24. P. frigida, Vill. Very reduced, but \- 2' high, villous ; leaflets broadly cuneate-obovate, 3 - 5-toothed at the summit, 2 - 4" long, nearly glabrous above ; flowers solitary, small, on very slender stems ; bract- lets and sepals equal, obtuse ; petals obcordate, \y long, a little exceed- ing the calyx ; carpels numerous, but achenia few. — White Mts., New Hampshire. Differing from the European plant only in its rather smaller flowers. 25. P. brevifolia, Nutt. Minutely glandular-puberulent, the calyx very sparingly villous : stems decumbent or ascending, 2-3' high; stipules ovate, entire ; leaflets suborbicular, 2-3" long, .2 - 3- lobed and crenately toothed, the middle one petiolulate ; bractlets acute, shorter than the acute sepals; petals " obovate," scarcely exceeding the calyx ; style attached below the apex of the ovary. — Collected only by Nuttall ; " Summit of Rocky Mts. (Oregon), near line of perpetual snow, near lat. 42°." * ■* Style terminal or medial ; carpels glabrous ; disk thickened or glandular ; stamens 20 ; herbaceous perennials, smooth or nearly so, with large purple or yellow flowers. 26. P. PALUSTRis, Scop. (Comarum, L.) Stems stout, ascending from a decumbent rooting perennial base, | - 2° long ; glabrous below, minutely silky or glandular-pubescent above ; lower stipules amplexi- caul and long-adnate to the petiole, the upper broadly ovate, entire ; leaves pinnate; leaflets 5 -7,. oblong, 1-2' long, obtuse or acute, lighter-colored, and more or less pubescent beneath ; flowers dark-pur- ple, few, in an open cyme ; calyx large and purplish, the sepals becom- ing 6 — 10" long in fruit, the bractlets linear, acuminate, and much shorter ; petals spatulate, acute, 2 - 3" long ; stamens with stout, fleshy filaments, in one row upon the margin of the thickened disk ; carpels very numerous, sessile upon the large spongy receptacle ; style attached OF ARTS AND SCIENCES : MAY 13, 1873. 561 to the middle of the ovary. — New England, and from the Great Lakes northward to Greenland, the Arctic Circle, and Alaska. 27. P. Thurberi, Gray. Stems ascending, slender, 2° high ; pu- bescence subvillous or minute ; stipules ovate, incisely toothed ; leaves digitate ; leaflets 5-7, obovate to oblong, 2' long, obtuse, nearly glabrous, coarsely serrate ; flowers dark purple, in an open cyme ; calyx large, the bractlets equalling the sepals ; petals B" long, very broadly obcordate, equalling the calyx ; disk thickened, pentagonal, bearing at the angles opposite to the sepals the 5 inner stamens with stout fleshy filaments, the 15 outer stamens with slender filaments arising from the margin of the base of the calyx ; carpels numerous, sessile on the short hairy receptacle ; style terminal. — New Mexico. 28. P. biflora, Willd. Dwarf, csespitose, the ascending stems slender, 2-3' high ; pubescence villous, the pedicels subtomentose ; leaves all radical, ternate ; the middle leaflet petiolulate and 3-parted, the lateral 2-parted, the linear segments 3 — 6" long with strongly revo- lute margins and villous-tufted, becoming nearly glabrous above ; flow- ers 1-5, yellow; bractlets broad, equalling the acute sepals; petals cuneate-obcordate, 2\" long, exceeding the calyx ; disk glandular between the five inner stamens, lobed ; filaments all subfiliform ; car- pels 15 - 30, short-pedicelled, the pedicels and small receptacle villous with long hairs ; style attached below the apex of the ovary. — On the Arctic Coast and in Siberia. No American specimens found in our collections. * * * Style attached below the middle of the ovary ; carpels on short pedicels, and, with the receptacle, densely Villous ; disk not thickened ; more or less woody perennials. 29. P. fruticosa, L. Shrubby, much branched, 1-4° high ; pubescence silky-villous ; stipules scarious ; leaves pinnate ; leaflets 5- 7, crowded, oblong-lanceolate, 2-12" long, entire, usually whiter beneath and the margins revolute ; flowers on slender pedicels in rather loose cymes or solitary ; bractlets equalling the acute sepals ; petals yellow, orbicular, 2 - 6" long, exceeding the calyx ; stamens 30 ; carpels 20. — From New Jersey to Labrador and Wisconsin, and northward to the Arctic Circle and Behring Strait, and in the moun- tains to Colorado, Nevada, and Northern California. Var. parvifolia. An alpine form, with minute densely silky VOL. VIII. 71 562 PROCEEDINGS OF THE AMERICAN ACADEMY leaves, 2" long, and small flowers. — E. Humboldt Mts., Nevada, and in the Wahsatch. 30. P. tridentata, Soland. Caudex woody, creeping, branched and tufted, the ascending herbaceous stems 1 - 10' high, subnaked -r pubes- cence sparse, silky, appressed ; stipules lanceolate, entire ; leaves ternate ; leaflets subcoriaceous and shining above, cuneate-oblong, i-P long, 3 - 5-toothed at the truncate apex ; flowers white, loosely cymose ; bractlets nearly equalling the sepals, smoother ; petals obovate-oblong, 2 - 3" long, exceeding the calyx ; stamens and carpels 20, the achenia becoming sparingly villous. — Higher peaks of the Alleghanies and White Mts. ; coast of Massachusetts ; Labrador ; Greeenland ; and from the Great Lakes to lat. 64°. P. return, Miiller {Fl. Dan. 5, t. 799), is the older name by several years, but is less appropriate. III. Style filiform, attached to the middle of the ovary or below the apex ; peduncles axillary, solitary, 1-flowered ; carpels glabrous, short-pedicelled, the pedicel and receptacle very villous ; herba- ceous perennials with mostly creeping or decumbent stems; flow- ers yellow. 31. P. Anserina, L. Spreading by slender many-jointed ruuners, white-tomeutose and silky-villous; stipules many-cleft; leaves all radi- cal, pinnate ; leaflets 7 - 21, with smaller ones interposed, oblong, sharply serrate, silky-tomentose at least beneath ; bractlets often incisely cleft, about equalling the sepals ; petals oblong, broadly ellipti- cal and entire or obcordate, 3 - 6" long, exceeding the calyx ; stamens 20, rarely 25 ; carpels 20 - 40 ; style attached to the middle of the ovary. — Pennsylvania to Illinois, New Mexico and California, and northward to the Arctic Ocean and Greenland. Very variable in size and pubescence, from the wholly glabrous minute plant of Greenland to the ordinary form with leaflets nearly or quite glabrous above or equally silvery-silky on both sides, and the still larger western form with leaves often 1-2° lonj;. 32. P. Canadensis, L. Stems slender and decumbent or prostrate ; pubescence villous, often scanty ; stipules mostly entire ; leaves ternate, the lateral leaflets parted nearly to the base, cuneate-oblong or -obovate, incisely serrate, nearly glabrous above ; peduncles exceeding the leaves ; bractlets longer than the sepals, entire ; petals broadly obovate or obcordate, 2 - 3" long ; stamens 20 ; carpels 20 - 40 ; style attached OF ARTS AND SCIENCES : MAY 13, 1873. 563 below the summit of the ovary. — Canada to Georgia aud westward to Arkansas and the Saskatchewan. Var. simplex, Torr. & Gray. With stouter and more ascending stems, 1-2° long, rarely creeping ; less hairy. 33. P. nemoralis, Nestl. Stolons filiform ; pubescence minute, appressed ; leaves ternate, occasionally quinate ; leaflets cuneate- obovate, 4 - 9" long, subpetiolulate, coarsely serrate, sparingly villous ; sepals and petals usually 4, the bractlets a little shorter ; petals 2 - 3" long, obcordate ; style attached below the apex of the ovary. — Re- ported from Labrador and a specimen preserved in herb. Hooker, but collector not stated. Possibly not American. Doubtful arid Excluded Species. P. digitato-flabellata, Br. & Bouch., is said to have originated from "North America." Tall and loosely corymbose ; leaves quinate; leaflets slightly hairy above, subcanescent and tomentose beneath, cuneate-flabellate, trifid or incisely lobed, the unequal segments acute ; bractlets equalling the sepals ; petals obovate, subretuse, equalling or exceeding the calyx. Known only in cultivation in Europe. P. multijuga, Lehm., appears both from the figure and description in Lehmann's Revisio to be Horkelia Califomica, var. cuneata, except only that it is scarcely supposable that the peculiar characteristics of the flower could have escaped notice. No true Potentilla is found that answers to the description. SYNONOMY. 31. Potentilla Anserina. Linn., Spec, 495. For foreign synonomy consult Lehmann's Monograph, p. 74, and Revisio, p. 188, and Ledebour, Fl. Ross., 2. 44. — Michx., Flora, 1. 304. James, Long's Exped., 2. 342. Cham. & Schlecht, Lin- naea, 2. 24. Meyer, PI. Lab., 76. Hook., Fl. Bor. Am., 1. 189. Bongard, Veg. Sitch., 132. Schlecht., Fl. Lab. in Linn., 10. 98. Hook. & Arn., Bot. Beech., 123 and 338. Torr. & Gray, Flora, 1. 444. Torrey, Frem. Rep., 89 ; Pac. R. R. Rep., 4. 84. Gray, PI. Fendl., 42. Seemann, Bot. Herald, 29 and 52. Engelm., PI. Upp. Miss., 191. Newberry, Pac. R. R. Rep., 6. 72. Cooper, Pac. R. R. Rep., 12. 38, 43, and 59. Hook, f., Distrib. Arc. PI., 290. Bourgeau, Palliser's Rep., 256. Rothr., Fl. Alaska, 445. Gray, Manual, 155. Bolander, Cat., 12. Watson, King's Rep., 5. 89. — Collectors numerous. Var. grandis. Lehm. in Hook. Fl. Bor. Am., 1. 189; Revis., 190. Torr. & Gray, Flora, 1. 444. Ledeb., Fl. Ross., 2. 44. Var. Grcenlandica. Hook., Parry's 3d Voy., Appx., 125 ; Fl. Bor. Am., 1. 189. 564 PROCEEDINGS OF THE AMERICAN ACADEMY Nestler, Monograph, 35. Seringe in DC. Prodr., 2. 582. Schlecht. in Linn., 10. 88. Torr. & Gray, Flora, 1. 444. Lehm., Revis., 190. P. Egedii. "Wormsk., Fl. Dan., 9. t. 1578. Seringe, DC. Prodr., 2. 582. Spreng., Syst., 2. 535. Lehm., Monog., 74. Don's Mill., 2. 560. Dietr., Syn., 3. 189. P. Anserina, var. Egedii. Torr. & Gray, Flora, 1. 444. 16. Potentilla argentea. Linn., Spec, 497. See Lehm., Monog., 94, and Revis., 96 ; Ledeb., Fl. Ross., 2. 47. — Pursh, Flora, 355. . Torrey, Fl. IT. S., 1. 497. Lehm. ; Hook., Fl. Bor. Am., 1. 191. Torr. & Gray, Flora, 1. 441. Torr., Nicol- let's Rep., 149. Gray, Manual, 154. 1. Potentilla arguta. Pursh, Flora, 636. Poir., Suppl., 4. 538. Rich- ardson, Frankl. 1st Voy., Appx., 20. Lindl., Bot. Reg., 16. 1. 1379. Hook. (& Lehm.), Fl. Bor. Am., 1. 186, t. 63. Don's Mill., 2. 558. Torr. & Gray, Flora, 1.445. Walpers, Rep., 2. 35. Dietr., Syn., 3. 186. Torrey, Nicollet's Rep., 149 ; Fremont's Rep., 89. Engelm., PI. Upp. Miss., 190. Lehm., Revis., 50. Cooper, Pac. R. R. Rep., 12. 43. Bourgeau, Palliser's Rep., 256. Gray, Manual, 154. — Bradbury; Richardson; James; Bourgeau; Lyall ; Hall & Harbour; Hayden ; Bebb ; and others. Geum agrimonioides. Pursh, Flora, 351. Spreng., Syst., 2. 543. Boottia syltestris. Bigelow, Fl. Bost., 2 ed., 206. P. Pennsylvanica, var. arguta. Torrey, Ann. N. Y. Lye, 2. 197 ; not Seringe in DC. Prodr. P. confertijiora. Torrey, Flora U. S., 1. 449. Spreng., Syst., 4. 189. Lehm., Nov. Stirp., pug. 3. 24. Var. ferruginea. Lehm., Revis., 50. P. ferruginea. Dougl. ; "Paxt. Mag., 5. t. 233." P. Bigelowiana. Wenderoth, " Sem. h. Marb. 1841 "; (Litt. Ber. zu Linn., 16. 112.) 28. Potentilla biflora. " Willd. ; Schlecht., Mag. Ges. Nat. Berl., 7. 297." See Lehm., Monog. and Revis., and Ledeb., Fl. Ross. — Richardson, Franklin's 1st Voy., Appx., 21. Lehm., Monog., 192, t. 20; Revis., 20, t. 62. Cham. & Schlecht., Linn., 2. 24. Hook., Fl. Bor. Am., 1. 195. Hook. & Arm, Bot. Beech., 123. Torr. & Gray, Flora, 1. 442. Dietr., Syn., 3. 180. Ledeb., Fl. Ross., 2. 61. Seemann, Bot. Herald, 29. Hook, f., Journ. Linn. Soc, 1. 124; Distrib. Arc. PI., 290. Rothr., Fl. Alaska, 445. — " Richardson ; Beechey ; Seemann ; Rae." 25. Potentilla brevifolia. Nutt. ; Torr. & Gray, Flora, 1.442. Lehm., Revis., 46. Dietr., Syn., 3. 183. Walp., Rep., 2 34. — Nuttall. 12. Potentilla Breweri. — No. 1720 Brewer ; Bolander. 32. Potentilla Canadensis. Linn., Spec, 498. Michx., Flora, 1. 303. Nestler, Monog., 58, t. 10. Elliott, Sketch, 1. 574. Torrey, Fl. U. S., 1. 426. Seringe, DC. Prodr., 2. 575. Spreng., Syst., 2. 538. Lehm., Monog., 118 ; Hook., Fl.Bor. Am., 1. 192 ; Revis., 187. Darlington, Fl. Cestr., 303. Don's Mill., 2. 552. Torr. & Gray, Flora, 1. 443. Engelm., PI. Upp. Miss., 191. Cooper, Pac. R. R. Rep., 12. 43. Bourgeau, Palliser's Rep., 256. Chapman, Flora, 124. Gray, Manual, 154. P. pumila. Poir., Diet., 5. 594. Pursh, Flora, 354. Spreng., Syst., 2. 573. OF ARTS AND SCIENCES : MAY 13, 1873. 565 P. sarmentosa. Willd., Enum., 1. 554. Nestler, Monog., 64. Bigelow, Fl. Bost., 2 ed., 204. Dietr., Syn., 3. 180. Var. simplex. Torr. & Gray, Flora, 1. 443. Lehm., Nov. Stirp., pug. 9. 72 ; Bevis., 188. Gray, Manual, 154. P. simplex. Michx., Flora, 1. 303. Nestler, Monog., 40, t. 9. Lehm., Monog., 118; Hook., Fl. Bor. Am., 1. 192. Elliott, Sketch, 1. 574. Seringe, DC. Prodr., 2. 575. Spreng., Syst., 2. 538. Don's Mill., 2. 552. P. Caroliniana. Poir., Diet., 5. 595. Pers., Ench., 2. 55. 11. Potentilla crinita. Gray, PI. Fendl., 41. Walpers, Ann., 2. 480. Lehm., Revis., 63, t. 21.— No. 199 Fendler. 14. Potentilla dissecta. Pursh, Flora, 355. Seringe, DC. Prodr., 2. 575. Spreng., Syst., 2. 536. Lehm., Nov. Stirp., pug. 3. 20 ; Revis., 28. Hook., Fl. Bor. Am., 1. 193. Don's Mill., 2. 553 and 560. Nuttall, Jour. Acad. Phil., 7. 20. Torr. & Gray, Flora, 1. 446. Dietr., Syn., 3. 180 and 190. — Wyeth; Nuttall ; Drum- mond; Bourgeau ; Lyall ; 219 Parry; 2715 Brewer; 5084 Bolander ; 327 Wat- son ; 135 Hall. P. diversifolia. Lehm., Nov. Stirp., pug. 2. 9 ; Hook., Fl- Bor. Am., 1. 190 ; Revis., 72, t. 31. Don's Mill., 2. 556. Torr. & Gray, Flora, 1. 439. Wal- pers, Rep., 2. 33. Dietr., Syn., 3. 185. Torrey, Fremont's Rep., 89. Engelm., PI. Upp. Miss., 191. Bourgeau, Palliser's Rep., 256 and 262 ; Gray, in Am. Jour. Sci., 2 ser., 33. 411, Watson, King's Rep., 5. 86. P. Drummondii. Lehm., Nov. Stirp., pug. 2. 9 ; Hook., Fl. Bor. Am., 1. 189, t. 65 ; Revis., 66. Don's Mill., 2. 558. Torr. & Gray, Flora, 1. 439. Wal- pers, Rep., 2.32. Dietr., Syn., 3.178. Bourgeau, Palliser's Rep., 256. Gray, Proc. Acad. Phil., 1863, 61. P. rubricaulis. Lehm., Nov. Stirp., pug. 2. 11 ; Hook., Fl. Bor. Am., 1. 191 ; Revis., 68, t. 30. Don's Mill., 2. 556. Torr. & Gray, Flora, 1. 438. Wal- pers, Rep., 2. 32. Dietr., Syn., 3. 185. Var. glaucophylla. Lehm., Revis., 73. Watson, King's Rep., 5. 86, in part. — Burke ; 218 Parry; 171 Vasey ; 328 Watson. P. glaucophylla. Lehm., Del. Sem. h. Hamb., 1836, 7; (Litt. Ber. zu Linn., 1838, 83.) Walpers, Rep., 2. 33. Var. multisecta. Watson, King's Rep., 5. 86. — No. 1 59 Hall & Harb., in part ; 330 Watson. Var. decurrens. — No. 329 Watson. 10. Potentilla effusa. Dougl. ; Lehm., Nov. Stirp., pug. 2. 8 ; Hook., Fl. Bor. Am., 1. 87 ; Revis., 64, t. 22. Don's Mill., 2. 557. Torr. & Gray, Flora, 1. 437. Dietr., Syn., 3. 186. Walpers, Rep., 2. 32. Hook., PL Geyer in Lond. Jour. Bot, 6. 219. Engelm., PI. Upp. Miss., 191. Bourgeau, Palliser's Rep., 256. — Douglas; Nuttall; Bounreau ; Porter; Gray. Var. gossypixa. Torr. & Gray, Flora, 1. 437. Lehm., Revis., 64. P. gossypina. Nutt. ; Hook., PI. Geyer in Lond. Jour. Bot., 6. 219. 21. Potentilla emarginata. Pursh, Flora, 353. Lehm., Monog., 174; Revis., 161. Spreng., Syst., 2. 540. Hook., Fl. Bor. Am., 1. 194. E. Meyer„Fl. Lab., 74. Don's Mill., 2. 551. Torr. & Gray, Flora, 1. 446. Hornem., Fl. Dan., 566 PROCEEDINGS OF THE AMERICAN ACADEMY 13. t. 2291. Dietr., Syn., 3. 179. Seemann, Bot. Herald, 29, 51, and 56. Rothr., Fl. Alaska, 445. — Franklin ; Parry ; Drummond ; Kane ; Hayes. P. nana. " Willd., Mag. Berl., 7. 296." Lehm., Monog., 181, 1. 17 ; (Spreng., Neue Entdeck., 2. 298;) Hook., Fl. Bor. Am., 1. 194. Seringe in DC. Prodr., 2. 573. Spreng., Syst., 2. 541. Don's Mill., 2. 550. Hook. & Arn., Bot. Beech., 123. Torr. & Gray, Flora, 1. 441. Dietr., Syn., 3. 179. Ledeb., Fl. Ross., 2. 56. Seller, Ann. & Mag. Nat. Hist., 1 ser., 16. 170. Seemann, Bot. Herald, 29 and 55. Hook, f., Jour. Linn. Soc, 1857, 121. Rothrock, Fl. Alaska, 445. P. verna. " Hook, in Scoresby's Greenland, 421." P. Graznlandica. R. Br., Ross's Voy., 142. P. tiivea, var. concolor. R. Br., Parry's 1st Voy., Appx., 277. Hook., Parry's 2d Voy., Appx., 395. Torr. & Gray, Flora, 1. 441. P. nivea, var. arctica. Lehm., Revis., 167, in part. " P.frigida? Greville, Mem. Wern. Soc., 4. 430." P. nivea, var. Vahliana. Durand, in Kane's Exped., 2. 453 ; not Torr. & Gray. 19. Potentilla fragiformis. " Willd. in Mag. Berl., 7. 294." Lehm., Monog., 163, 1. 15; (Spreng., Neue Entdeck., 2. 298 ;) Hook., Fl. Bor. Am., 1. 194; Revis., 155. Seringe, DC. Prodr., 2.586. Spreng., Syst., 2. 540. Don's Mill., 2. 550. Ledeb., Fl. Ross., 2. 59, with full synonomy. Dietr., Syn., 3. 178. Regel & Tiling; Fl. Ajan., 85, with syn. — Pallas ; Dall. Var. villosa. Regel & Tiling, 1, c. — Mertens; Barclay; Tolmie ; Scouler; Wood; Bischoff; Bannister; Harrington. P. villosa. Pall.; Pursh, Flora, 353. Lehm., Monog., 166, t. 16; Hook., Fl. Bor. Am., 1. 194; Revis., 171. Seringe, DC. Prodr., 2. 573. Spreng., Syst., 2. 540. Cham. & Schlecht., Linn., 2. 22. Bongard, Veg. Sitch:, 132. Don's Mill., 2. 550. Hook. & Arn., Bot. Beech. 123. Torr. & Gray, Flora, 1. 442. Dietr., Syn., 3. 178. Ledeb., Fl. Ross., 2. 58. Presl, Epimel. Bot., 198. Seemann, Bot. Herald, 29. Hook, f., Distrib. Arc. PL, 290. Rothrock, Fl. Alaska, 445. P. lucida. " Willd., Berl. Mag., 7. 296." P. leucochroa. "LindL, Wall. Cat. PI. Ind." 24. Potentilla frigida. Vill., Fl. Delph., 3. 563. See synonomy in Lehm., Revis., 158. — Hook, f., Distrib. Arc. PI., 290 and 326. Durand, Kane's Exped., 2. 454. "Gray, Manual, 154. P. Robbinsiana. Oakes, MS. in herb. P. minima. Gray, Manual, 1 ed., 122. P. minima, vox. Robbinsiana. Torr. & Gray, Flora, 1.441. Lehm., Revis., 159. 29. Potentilla fruticosa. Linn., Spec, 495. See synonomy in Ledeb., Fl. Ross., 2. 61, and Lehm., Revis., 16. — Michx., Flora, 1. 304. Pursh, Flora, 355. James, Long's Exped., 2. 215. Torrey, Ann. N. Y. Lye, 2. 197 ; Fremont's Rep., 89. Hook., Fl. Bor. Am., 1. 186. Nuttall, Journ. Acad. Phil., 1834, 20. Hook. & Am., Bot. Beech., 123. Torr. & Gray, Flora, 1. 445. Seemann, Bot. Herald, 29 and 51. Richardson, Arc. Exped., 427. Engelm., PI. Upp. Miss., 191. Hook, f., Jour. Linn. Soc, 1. 124 ; Distrib. Arc. PL, 290. Bourgeau, Palliser's Rep , 256 OP ARTS AND SCIENCES : MAY 13, 1873. 567 and 262. Kegel, Gart. Flora, 9. t. 278. Gray, Proc. Phil. Acad., 1863, 61. Roth- rock, Fl. Alaska, 445. Gray, Manual, 155. Watson, King's Rep., 5. 89. P. floribunda. Pursh, Flora, 355. Don's Mill., 2. 561. Var. alpina. — No. 342 Watson ; Wheeler. 22. Potentilla gelida. C. A. Meyer, Ind. PI. Cauc., 167. Ledeb., Fl. Ross., 2. 59, with synonomy. Walpers, Rep., 2. 26. Lehn;., Revis., 154, with synonomy. — Douglas ; Newberry ; Lyall; 4971 Bolander; 1685 Brewer. P.flabellifolia. Hook.; Torr. & Gray, Flora, 1.442. Dietr., Syn., 3.183. Walpers, Rep., 2. 34. Lehm., Revis., 153, t. 51. Newberry, Pac. R. R. Rep., 6. 72. 2. Potentilla glandulosa. Lindl., Bot. Reg., 19. 1. 1583 ; (Litt. Ber. zu Linn., 1835, 13.) Hook. & Arn., Bot. Beech., 338. Torr. & Gray, Flora, 1. 446. Dietr., Syn., 3. 187. Walpers, Rep., 2. 35. Engelm., PI. Upp. Miss., 191. Lehm., Revis., 48. Torrey, Pac. R. R. Rep., 4. 84 ; Bot. Mex. Bound., 64. Newberry, Pac. R. R. Rep., 6. 72. Watson, King's Rep., 5. 89. Bolander, Cat., 12. — No. 138 Coulter; 197 Fendler; 154 Hall & Harb. ; 100 and 240 Stretch; 240 Ander- son; 120 Torrey; 6296 Bolander; 260, 625, 1705, 1714, 1767, and 2715 Brewer; 343 Watson; 96 and 97 Eaton; 170 Vasey ; 476 Greene; 211 Kell. & Harf. ; 134 Hall ; Douglas ; Nuttall ; Tolmie ; Fremont ; Wilkes ; Wallace ; Bigelow ; Spalding ; Cronkhite ; Fitch ; Smith ; Parry ; Heermann ; Engelmann ; Mee- han. P. arguta. Lehm., in Hook., Fl. Bor. Am., 1. 186, in part; not Pursh. Nuttall, Jour Acad. Phil., 7. 21. P. Oregana and glutinosa. Nutt., MS. in herb. P.Jissa. Nuttall; Torr. & Gray, Flora, 1. 446. Dietr., Syn., 3. 187. Wal- pers, Rep., 2. 35. Hook., PI. Geyer in Lond. Jour. Bot, 6. 220. Gray, PI. Fendl., 41 ; Amer. Jour. Sci., 2. 33. 411 ; Proc. Phil. Acad., 1863, 61. P. Wrangeliana. Fisch. & Mey., Ind. Sem. h. Petr., 1840, Animad., 54. Walpers, Rep., 2. 35. Lehm., Revis., 49, t. 19. P. nipestris. Presl, Epimel. Bot., 198. Var. incisa. Lindl., Bot. Reg., 13. 1. 1973. 15. Potentilla gkacilis. Dougl. ; Hook., Bot. Mag., t. 2984, and Fl. Bor. Am., 1. 192. Don's Mill., 2. 554. Torr. & Gray, Flora, 1. 440. Dietr., Syn., 3. 182. Walpers, Rep., 2. 33. Torrey, Fremont's Rep., 89. Lehm., Revis., 107. Cooper, Pac. R. R. Rep., 12. 52. Watson, King's Rep., 5. 88. — No. 159 Hall & Harb. ; 269 Davidson ; 336 Watson ; 94 Eaton ; 103 Greene; 136 Hall ; Douglas ; Nuttall ; Tolmie ; Pot. 3, Bourgeau ; Kuhn ; Parry. P. Blaschkeana. Turcz. ; Lehm. in Otto's Gartenz., 9. 506 ; Ind. Sem. h. Hamb., 1853, Add. 9 ; Revis., 107, t. 64. P. nivea, var. Bourgeau, Palliser's Rep., 256. P.fastigiata 1 Gray, Proc. Phil. Acad., 1863, 61. Var. flabellifoemis. Torr. & Gray, Flora, 1. 440. Newberry, Pac. R. R. Rep., 6. 72. Cooper, Pac. R. R. Rep., 12. 59. Durand, Fl. Utah, 163. Watson, King's Rep., 5. 88. — No. 1826 Brewer ; 338 Watson ; Nuttall ; Bourgeau ; Lyall ; Spalding. P.flabdliformis. Lehm., Nov. Stirp.,pug. 2. 12; Hook., Fl. Bor. Am., 1. 192, 568 PROCEEDINGS OF THE AMERICAN ACADEMY t. 66; Monog. SuppL, 13, t. 6. Don's Mill., 2. 554. Hook., PI. Geyer in Lond. Jour. Bot., 6. 220. Bourgeau, Palliser's Rep., 256. Var. fastigiata. — No. 513 Fremont ; 203 Fendler ; 74 Stretch ; 1708 Brewer ; 337 Watson ; Nuttall ; Scouler ; Siler. P. fastigiata. Nutt. ; Torr. & Gray, Flora, 1. 440. Dietr., Syn., 3. 182. Walpers, Rep., 2. 33. Gray, PL Fendl., 42. P. olopetala. Lehm., Revis., 78, in part. P. concirma ? Gray, Amer. Jour. Sci., 2. 33. 411. Var. rigida. — No. 162 Fremont; 98 Bridges; 162 Hall & Harb., in part, and 158, in part; 179 Anderson; 121 and 121a Torrey; 5036 Bolander ; 339 Wat- son; 170 Hayden; 1144 Kell. & Harf. ; Nuttall; Spalding; Cronkhite ; Pot. 1, Bourgeau. P. recta? Nutt., Genera, 1. 310. P. chrysantha. Lehm. in Hook., Fl. Bor. Am., I. 193. Don's Mill., 2. 554. P. rigida. Nutt., Jour. Acad. Phil., 7.20. Torr. & Gray, Flora, 1.440. Walpers, Rep., 2. 33. Engelm., PL Upp. Miss., 191. Newberry, Pac. R.R. Rep., 6. 72. P. Nuttallii. Lehm., Ind. Sem. h. Hamb., 1852, Add. 12 ; (Ann. Sci. Nat, 3. 19. 364 ;) " Otto's Gartenz., 8. 373 " ; Revis., 89, t. 33. Watson, King's Rep., 5. 88. 23. Potentilla Gkayi. — Nos. 9 and 4971 Bolander ; 1685 Brewer ; Gray. 9. Potentilla Hippiana. Lehm., Nov. Stirp., pug. 2. 7 ; Hook., Fl. Bor. Am.,. 1.188, t. 64; Revis., 62. Don's Mill., 2. 558. —No. 389 Fremont; 216 Parry; 158 and 159 Hall & Harb., in part; 162 and 163 Vasey, and 172, in part; James ; Douglas ; Nuttall ; Bourgeau; Wooclhouse ; Engelmann ; Hayden ; Greene. P. leucophylla. Torrey, Ann. N. Y. Lye, 2. 197 ; not Pall. P. dealbata. DougL, MS. in herb. P. Pennsylvanica, var. Hippiana. Torr. & Gray, Flora, 1.438. Torrey, Pac. R, R. Rep., 4. 84. Gray,Proc. Phil. Acad., 1863, 6i. P. diffusa. Torrey, Sitgreave's Rep., 159 ; not Gray. Var. pulcherrima. — No. 104 Fremont ; 198 Fendler; 217 Parry ; 160 Hall & Harb.; 161 and 164 Vasey; 333 and 334 Watson; Drummond; Bourgeau; Bigelow ; Alford. P. pulcherrima. Lehm., Nov. Stirp., pug. 2. 10 ; Hook., FL Bor. Am., 1. 190 ; Revis., 69, t. 28. Don's Mill., 2. 556. Watson, King's Rep., 5. 87. P. Pennsylvanica, var. pulcherrima. Torr. & Gray', Flora, 1. 438. P. diffusa. Gray, PL Fendler ; not Willd. Torrey, Pac. R. R. Rep., 4. 84. P. Hippiana, var. diffusa. Lehm., Ind Sem. h. Hamb., 1849, Add. 8 ; (Ann. Sci. Nat., 3. 12. 347 ;) Revis., 62. Walpers, Ann., 2. 480. P. rubricaulis. Bourgeau, Palliser's Rep., 256 ; not Lehm. 7. Potentilla Hookeriana. . Lehm., Ind. Sem. h. Hamb., 1849, Add. 10; Nov. Stirp., pug. 9. 18 ; (Ann. Sci. Nat., 3. 12. 353 ;) Revis., 163, t. 55. Walpers, Ann., 2. 509. — Bourgeau. 17. Potentilla humifusa. Nutt., Genera, 1.310. Torrey, Ann. N. Y. Lye, 2. 197. Seringe, DC. Prodr., 2. 574. — Bourgeau ; Parry; 157 Hall & Harb. ; 21 Greene. OF ARTS AND SCIENCES: MAY 13, 1873. 569 P.concinna. Richardson, Frankl. 1st Voy., Appx., 20. Lehm., Monog. Suppl., 16, t. 7 ; Nov. Stirp., pug. 2. 13 ; Hook., Fl. Bor. Am, 1. 193, t. 67 ; Revis., 112. Don's Mill., 2.554. Ton-. & Gray, Flora, 1.443. Dietr., Syn., 3. 1S3. Walpers, Rep., 2. 34. Bourgeau, Palliscr's Rep., 256. Gray.Amer. •Tour. Sci., 2. 33. 411 ; Proc. Phil. Acad., 1863, 61. P. pulchella. Spreng., Syst., 4. 199 ; not R. Br. Tormentilla humifusd. Don's Mill., 2. 562. P. concinna, var. humifusa. Lehm., Revis., 112. 20. Potentilla macclata. Ponrret, " Act. Toloss., 3. 316." E.Meyer, PI. Lab., 75. Lehm., Revis., 119, with full synonomy. — Weiz ; Kane; Williams; Rink ; Butler. P. Salisburgensis. Haenke ; Jacq., Collect., 2. 68 ; Icon. Rar., 3. t. 490. Torr. & Gray, Flora, 1. 440. P. opaca. Pursh, Flora, 355 ; not Linn. Meyer, PI. Lab., 75. Lehm. ; Hook., Fl. Bor. Am., 1. 191. Schlecht., Fl. Lab. in Linn., 10. 95. Torr. & Gray, Flora, 1. 191. P. aurea. Oerder, Fl. Dan., 1. 114; not Linn. Schrank, PI. Lab. P. aurea, var. /3. Durand, Kane's Exped., 2. 455. P. crocea. Hall. Hook, f., Jour. Linn. Soc., 1. 116. 33. Potextilla nemoralis. Nestler, Monog., 65. Lehm., Monog., 147, 1. 13. Torr. & Gray, Flora, 1. 444. Ledeb., Fl. Ross., 2. 51, with synonomy. P. procumbens. " Sibth. ; Hartm. Handb., 5 ed., 164." Lehm., Revis., 179, with full synonomy. P. Tormentilla. Seller in Ann. & Mag. Nat. Hist., 1. 16. 170. 18. Potentilla xivea. Linn., Spec, 499. Compare synonomy in Ledeb., Fl. Ross., 2. 57, Lehmann, Revis., 166, and Hook, f., Distrib. Arc. PI., 325. — Vahl, Fl. Dan., t. 1035. Pursh, Flora, 353. R. Br., Parry's 1st Voy., Appx., 277; (Flora, 7. 2, Beilag., 8S.) Richardson, Frankl. Journ., 2 ed., Appx., 20. Scringe, DC. Prodr., 2. 572. Cham. & Schlecht., Linnrea, 2. 21. Lehm., Monog., 73 ; Hook., Fl. Bor. Am., 1.95. Meyer, Fl. Lab., 74. Torr. & Gray, Flora, 1.441. See, mann, Bot. Herald, 52. Hook, f., Jour. Linn. Soc, 1. 116 and 121. Dickie, in same, 3. Ill and 11. 33. Gray, Am. Jour. Sci., 2. 33. 411; Proc. Acad. Phil., 1863,61. Rothrock, Fl. Alaska, 445. Watson, King's Rep., 5. 87. —No. 193 Richardson; 214, 215 Parry; 335 Watson, in part; 172 Vasey, in part; Drum- mond ; Bourgeau ; Lyall. Var. Vaiiliana. Seemann, Bot. Herald, 29. P. hirsuta. Vahl ; Hornem. in " Fl. CEcon., 2 ed., 500 " ; Fl. Dan., 8. t. 1390. Seringe, DC. Prodr., 2. 573. P. Vahliana. Lehm., Monog., 172; Hook., Fl. Bor. Am., 1.194; Revis., 170, with synonomy. Seemann, Bot. Herald, 51. P. Jamesoniana. Grev., in " Mem. Soc. Wern., 3. 417, t. 20." P. mV«7,.var. 7. Torr. & Gray, Flora, 1. 441. Durand, Kane's Exped., 2. 453. Var. macrophtlla. Lehm., Nov. Stirp., pug. 9. 57. Seringe, DC. Prodr., 2. 571, omitting syn. Hook., Bot. Mag., t. 2982. P. nivea. R. Br., Parry's 1st Voy., Appx., 277. Lodd., Bot. Cab., t. 460. vol. viii. 72 570 PROCEEDINGS OF THE AMERICAN ACADEMY Var. frostrata. Lehm., Nov. Stirp., pug. 9. 69; Monog., 184; Kevis., 169. Scringe, DC. Prodr., 2. 572. P. prostrata. Rotboll, Skrift., 10. 453. Var. pentaphylla. Lehm., Nov. Stirp., pug., 9. 69 ; Hook., Fl. Bor. Am., 1. 195; Revis., 169. Var. dissecta. — No. 335 Watson, in part. 3. Potentilla Norvegica. Linn., Spec, 449. Oeder, Fl. Dan., 1. 171. Michx., Flora, 1.302. Ait., Hort. Kew., 2 ed., 3.279. Nestler, Monog., 66. Elliott, Sketch, 1. 573. Lehm., Monog., 153; Revis., 198, with synonomy. Dar- lington, Fl. Cestr., 303. Cham. & Schlecht., Linnaja, 2. 26. Hook., Fl. Bor. Am., 1. 193. Bongard, Veg. Sitch., 132. Schlecht., Fl. Lab. in Linn., 10. 98. Torr. & Gray, Flora, 1. 436. Ledeb., Fl. Ross., 2. 36, with synonomy. Gray, PI. Fendl., 42. Hook., PI. Geyer in Lond. Jour. Bot, 6. 219. Engelm., PI. Upp. Miss., 191. Seemann, Bot. Herald, 51. Cooper, Pac. R. R. Rep., 12. 43 and 59. Chapman, Flora, 124. Bourgeau, Palliscr's Rep., 256. Gray, Manual, 154. Watson, King's Rep., 5. 85. — No. 205 Fendler; Eschscholtz ; Bourgeau; Lyall ; Kellogg ; Hayden ; Howard ; and others. . P. Labradorica. Lehm., Ind. Sem. h. Hamb., 1849, Appx., 12 ; (Ann. Sci. Nat., 3. 12. 355 ;) Nov. Stirp., pug. 9. 21 ; Revis., 201. Walpers, Ann., 2. 516. P. millegrana and grossa. Dougl. MS. Var. hiksuta. Torr. & Gray, Flora, 1. 436. Lehm., Nov. Stirp., pug. 9. 75 ; Revis., 199. P. Monspeliensis. Linn.; Willd., Spec, 2. 1109. P. hirsuta. Michx., Flora, 1. 302. Pursh, Flora, 353. Nestler, Monog., 67. Lehm., Monog, 155. Spreng., Syst, 2. 540. Hook., Fl. Bor. Am., 1. 193. Don's Mill., 2. 551. P. Morisoni. DC, Hort. Monsp., 135. Seringe, DC. Prodr., 2. 573. 26. Potentilla palustris. Scop., Fl. Cam., 2 ed., 1. 359. Lehm., Monog., 52; Revis., 73, with synonomy. Torrey, Flora U. S., 1. 498. Seringe, DC. Prodr., 2. 583. Meyer, PI. Lab., 76. Hook., Fl. Bor. Am., 1. 187. Rothrock, Fl. Alaska, 445. Gray, Manual, 155. Comarum palustre. Linn., Spec., 502. Mull., Fl. Dan., t. 636. Michx., Flora, 1. 302. Pursh, Flora, 156. Nutt., Genera, 1. 311. Richardson, Frank!. Journ., Appx., 2 ed., 12. Bigelow, Fl. Bost., 2 ed., 203. Schlecht., Fl. Lab. in Linn., 10.98. Torr. & Gray, Flora, 1.447. Seemann, Bot. Herald, 29. Newberry, Pac. R. R. Rep., 6. 71. Cooper, Pac. R. R. Rep., 12. 59. Hook, f., Distrib. Arc. PI., 290. Irmisch, in Bot. Zeit., 19. 115. Bourgeau, Palliser's Rep,, 256. P. Comarum. Nestler, Monog., 36. Seringe, DC. Prodr., 2. 583. Cham. & Schlecht, Linn., 2. 25. Bongard, Veg. Sitch., 132. 6. Potentilla Pennsylvania. Linn., Mant., 76. Compare synonomy in Ledeb., Fl. Ross., 2. 40, and Lehm., Revis., 57. —Ait., Hort. Kew., 2. 214. Michx., Flora, 1.304. Pursh, Flora, 356. Nestler, Monog., 36. Lehm., Monog., 55; Hook., Fl. Bor. Am., 1. 187. Torr. & Gray, Flora, 1. 438, excl. vars. 5 and e. Gray, PI. Fendl., 42. Cooper, Pac. R. R. Rep., 12. 43. Hook, f., Distr. Arc. PL, 290 and 325 (under P. sericea). Bourgeau, Palliser's Rep., 256. Rothrock, Fl. OF ARTS AND SCIENCES: MAY 13, 1873. 571 Alaska, 445. Kegel & Herder, PL Semenov. in Bull. Soc. Mosc., 1. 474. Gray, Manual, 154. — Nos. 68, 216 Parry; 167 Vasey ; Drummond ; Nicollet; Burke; Pickering; Greene; Onion, Kinnicott & Hardisty. P. Missourica. Schrad, Ind. Sem. h. Gbtt ; (Linn., 8, Litt. Ber., 26.) Lindl., Bot. Reg., 17. t. 1412. Don's Mill., 2. 557. Var. strigosa. Pursh, Flora, 356. Lehra., 11. cc. Torr. & Gray, Flora, 1. 438. Engelm., PI. Upp. Miss., 191. Gray, Am. Jour. Sci., 2. 33.411 ; Proc. Phil. Acad., 1863, 61. — No. 162 Hall & Harb. ; Nuttall ; Bourgeau ; Engelmann ; Suckley ; Kennicott. P. peclinata. Fisch., MS. P. holosericea. Nutt., MS., in herb. P. absinikiifolia and rubricauJis. Dougl., MS. Var. GLABKATA. — No. 326 Watson ; Fremont. P. sericea, var. glabrata. Lehm.; Hook., Fl. Bor. Am., 1. 189; Revis., 34. Don's Mill., 2. 560. Torr. & Gray, Flora, 1. 437. Torrey, Fremont's Rep. 89. Seemann, Bot. Herald, 29. P. Pennsylvanica. Hook & Am., Bot. Beech., 123. P. Pennsylvania, var. strigosa. "Watson, King's Rep., 5. 86. Var. arachnoidea. Lehm., Nov. Stirp., pug. 9. 41 ; Revis., 59. P. arachnoidea. Dougl., MS. ' P. Pennsylvanica, var. conferta. Gray, PI. Fendl., 42, excl. syn. Var. bipixxatifida. Torr. & Gray, Flora, 1.438. Torrey, Nicollet's Rep., 149. Hook., PL Geyer in Lond. Jour. Bot., 6. 220. Lehm., Revis , 60. P. bipinnatijida. Dougl.; Hook., Fl. Bor. Am., 1. 188. Don's Mill., 2. 558. P. arguta. Lehm., Monog , 62, excl. syn. ; not Pursh. Cham. & Schlecht., Linn., 2. 26. Spreng., Syst, 2. 534. P. Pennsylvanica, var. arguta. Scringe, DC. Prodr., 2. 581. 13. Potentilla Plattensis. Nutt. ; Torr. & Gray, Flora, 1. 439. Dietr., Syn., 3. 187. Walpers, Rep., 2. 32. Lehm., Revis., 28, t. 6. Gray, Proc. Acad. Phil., 1863, 61.— No. 564 Fremont; 161 Hall & Harb.; 331, 332 Watson ; 165 Vasey ; Nuttall ; Bourgeau ; Porter ; Greene. P. campestris. Nutt., MS. in herb. P. sericea, var. /3. Bourgeau, Palliser's Rep., 256. ? P. diversifolia, var. pinnatisecta. Watson, King's Rep., 5. 87. 8. Potextilla pulchella. R. Br., Ross's Voy., 142; Parry's Voy., SuppL, 277; (Flora, 7. 2, Beilag., 87.) Hook., Parry's 2d Voy., Appx., 395. Lehm., Monog., SuppL, 14. t. 7; Nov. Stirp., pug. 3. 25; Hook., Fl. Bor. Am., 1.191; Revis., 36. Seringe, DC. Prodr., 2. 502. Spreng., Syst., 4. 198. Hornem., Fl. Dan, 13. t. 2234. Don's Mill., 2. 586. Torr. & Gray, Flora, 1. 439. Dietr., Syn., 3. 185. Walpers, Rep., 2. 33. Seemann, Bot. Herald, 29. Durand, Kane's Exped., 2. 453. — Parry ; Kane ; Hayes. P. sericea. Grev., " Mem. Soc. Wern., 3. 430." P. Keilhavii. Sommerf., " Fl. Spitz, in Mag. Naturv., 2. 244." 4. Potextilla riyalis. Nutt. ; Torr. & Gray, Flora, 1.437. Dietr., Syn 3. 178. Walpers, Rep., 2. 31 ; Ann., 2. 515. Gray, PL Fendl., 42. " Otto's Gar tenz., 7. 350 " ; Ind. Scm. h. Hamb., 1851, Add., 10 ; (Linniea, 25. 313.) Torrey 572 PROCEEDINGS OF THE AMERICAN ACADEMY Pac. R. R. Rep., 4. 84. Gray, Ives's Rep., 11. Bolander, Cat., 12. — No. 203 Fendler; 173 Vasey ; Nuttall; Bigelow ; Fitch. Var. jiillegrana. — No. 122 Torrey ; 240 Anderson ; 1858 Brewer ; 324, 325 Watson ; 98 Eaton ; 169, 173 Vasey; 216 Kell. & Harf. ; Cooper. P. millegrana. Engelm. ; Lehm., Ind. Sem. h. Hamb., 1849, Add., 11 ; (Ann. Sci. Nat., 3. 12. 354) ; Nov. Stirp., pug. 9. 22 ; Revis., 202. Walpers, Ann., 2. 517. "Watson, King's Rep., 5. 85. Var. pentandra. — Engelmann. P. pentandra. Engelm. ; Torr. & Gray, Flora, 1. 447. Dietr., Syn., 3. 184. Walpers, Rep., 2. 35. Lehm., Nov. Stirp., pug. 9. 75; Revis., 197, t. 62. 5. Potentilla sdpina. Linn., Spec., 497. See synonomy in Ledeb., Fl. Ross., 2. 36, and Lehm., Revis., 193. — Michx., Flora, 1.304. Pursh, Flora, 1. 356. Torrey, Ann. N. Y. Lye, 2. 197. Hook., Fl. Bor. Am., 1. 187; Comp. Bot. Mag., i. 25. Nees, PI. Neuwied., 8. Maximowicz, Fl. Amur., 97. Bour- geau, Palliser's Rep., 256. — Nuttall; Nicollet; Parry; Engelmann; Culbertson. P.paradoxa. Nutt. ; Torr. & Gray, Flora, 1.437. Walpers, Rep., 2. 32. Torr., Nicollet's Rep., 149 ; Bot. Mex. Bound., 64. Gray, PI. Wright., 1. 68 and 2. 55. Lehm., Nov. Stirp., pug. 9. 74 ; Revis., 194, t. 62. Engelm., PI. Upp. Miss., 191. Cooper, Pac. R. R. Rep., 12. 43. Paine, Cat. PI. Oneida, 186. Gray, Manual, 154. Var. Nicolletii. — 361 Nicollet. 27. Potentilla Thurberi. Gray, PI. Thurb., 318. Lebm., Ind. Sem. h. Hamb., 1854, 10 ; (Ann. Sci. Nat., 4. 2. 376s) "Otto's Gartenz., 10.459 "; Revis., 92. Torrey, Bot. Mex. Bound., 64. Miiller, Ann., 7. 868. —No. 1107 Tburber; 347 Bigelow ; Henry. 30. Potentilla tridentata. Aiton, Hort. Kew., 2. 216, t. 9. Vahl, Symb. Bot., 2. 59. Michx., Flora, 1. 302. Nestler, Monog., 66. Lehm., Monog., 190 ; Hook., Fl. Bor. Am., 1. 195 ; Revis., 22. Richardson, Frankl. Journ., Appx., 12. Torrey, Flora U. S., 1. 495. Seringe, DC. Prodr., 2. 585. Spreng., Syst., 2. 514. Don's Mill., 2. 552. Torr. & Gray, Flora, 1. 445. Hook, f., in Journ. Linn. Soc, 5. S3. Durand, Kane's Exped., 2. 454. Chapman, Flora, 124. Bourgeau, Pal- liser's Rep., 256. Matthews, Fl. Acad., 15. Gray, Manual, 124. P. retusa. Mull., Fl. Dan., 5. t. 799. Retz, Fl. Scand., 2 ed., 123. Hornem., Fl. Dan., 1 1 . 1. 1875. Don's Mill., 2. 550. Cross-Referen ces. P. ahsinthiifoUa = P. Pennsylvanica, var. P. arachnoidea. =P. Pennsylvanica. P. arguta ; P. glandulosa ; P. Pennsyl vanica. P. aurea; P. maculata. P. Bigelowiana = P. arguta. P. bipinnatijida = P. Pennsylvanica, var. P. Blaschkeana = P. gracilis. P. campeslris = P . Plattensis. P. Caroliniai)a=I>. Canadensis. P. chrysantha = V. gracilis, var. P. Comarum = P. palustris. P. concinna; P. gracilis. P. confertijlora = P. arguta. P.crocea; P. maculata. P. dealbata = P. Hippiana. P. depauperata = Ivesia depauperata. P. diffusa; P. Hippiana. OF ARTS AND SCIENCES: MAY 13, 1873. 573 P. diversifolia ; P. dissecta ; P. Plat- tensis. P. Dnnnmondii=F. dissecta. P. Egedii — Y. Anserina, var. P. fastigiata ; P. gracilis. P.ferruginea = P. arguta. P. Jissa = P. glandulosa. P. flabellifolia = P. gelida. P. flabdliformis = P. gracilis, var. P.floribunda = P. fruticosa. P. frigida = ~P. emarginata. P. glaucophylla = 'P. dissecta, var. P. glutinosa = P. glandulosa. P. gossypina = P. effusa. P. Gra?nlandica='P. emarginata. P. grossa = P. Norvegica. P. hirsuta ; P. nivea ; P. Norvegica. P. holosericea = P. Pennsylvania, var. P. Jamesoniana='P. nivea, var. P. Keilhavii = P. pulchella. P. Labradorica — P. Norvegica. P. leucochroa = P. fragiformis, var. P. leucophyUa^'P. Hippiana. P. lucida = P. fragiformis, var. P. milkgrana; P. Norvegica; P. ri- val is. P. minima ; P. frigida. P. Missourica — P. Pennsylvania. P. Monspeliensis = P. Norvegica. P. Morisoni = P. Norvegica. P. multijuga = Horkelia California, var. P. nana = P. emarginata. P. Newberryi = Ivesia gracilis. P. nivalis, Torr. = Geum Rossii. P. nivea; P. emarginata ; P. gracilis. P. NuUaUii—¥. gracilis, var. P. olopetala='P. gracilis, var. P. opaca ; P. maculata. P. Oregana — Y. glandulosa. P. jmradoxa = P. supina. P. pectinata = P. Pennsylvania, var. P. Pennsylvania ; P. arguta ; P. Hip- piana. P. pentandra = P. rivalis, var. P. procumbens ; P. nemoralis. P. prostrata ; P. nivea. P. pulc/iella ; P. humifusa. P. pulcherrima = P. gracilis, var. P. pumila = P. Canadensis. P. reel a ; P. gracilis. P. retusa = P. tridentata. P. rigida ; P. gracilis, var. P. Robbinsiana = P. frigida. P. rubricaulis ; P. dissecta ; P. Hippi- ana ; P. Pennsylvania. P. rupestris — 'P. glandulosa. P. Salisburgensis = P. maculata. P. sarmentosa = P. Canadensis. P. sericea ; P. Pennsylvanica ; P. Plat- tensis ; P. pulchella. P. simplex — P. Canadensis, var. P. Tormentilla = P.- nemoralis. P. Valdiana — P. nivea, var. P. verna ; P. emarginata. P. villosa = P. fragiformis, var. P. Wrangelliana = P. glandulosa. Revision of the extra-tropical North American Species of the Genus Oenothera. — By Sereno Watson. The limits of this genus are retained as defined in Torrey & Gray's Flora, and by Bentham & Hooker, though Godetia and Boisduvalia might be removed from it with apparent safety. These sections are more nearly allied to Clarkia and Eucharidion, and are characterized by a similar attachment of the anthers to the filament by a broad and somewhat cordate base, by the same purple or lilac color of the petals, which in some species become strongly lobed, and (in Godetia) by the unusually uniform shape of the seeds, which resemble those of 514: PROCEEDINGS OP THE AMERICAN ACADEMY the two genera mentioned. In Boisduvalia we have also the calyx- lobes never reflexed, and the capsule few-seeded. The supposed affinity, however, of Godetia to JEpilobium, on account of the analogy of the crest upon the seed of the one to the coma in the other, as held by Spach and admitted by Lindley, can scarcely be sustained. A few new species are added, and some that had been reduced are restored ; but the total number is little larger than that given by Torrey & Gray. Synopsis of Species. § 1. EUCENOTHERA. Stigma-lobes linear, elongated (very short in (E. lini- folia) ; calyx-tube linear, slightly dilated at the throat; petals never lilac or purple; filaments nearly equal ; anthers linear, attached at the middle. * Annual or biennial, caulescent ; flowers erect before open- ing, yellow, the calyx tips free ; capsules sessile, coria- • ceous, straight or nearly so ; seeds in two rows in each cell. ■ j Flowers in a leafy spike ; capsules oblong, slightly attenu- ate above ; seed with more or less margined angles, nearly smooth. Rather stout, erect, 1-5° high, usually simple ; calyx-tube ]-2.J'long; capsule | - 1' long 1. (E. biennis. Thick and woody at base, 5- 10° high ; calyx-tube 3-5' long; capsule 1 -2' long 2. (E. Jamesii. 1 1 Flowers in a leafy spike ; capsule linear ; seeds not mar- gined, minutely tuberculate. Spike rather loose and few-flowered ; calyx sparingly vil- lous ; petals roundish 3. (E. heterophijlla. Spike elongated, dense; calyx silky-canescent ; petals rhombic-ovate 4. .a = CE. Boothii. CE. rhizocarpa = CE. triloba. CE. rhombipetala ; CE heterophylla. CE. riparia ; CE. fruticosa ; CE. pu- mila. CE. Roemeriana = CE. triloba. CE. roseo-alba= CE. amoena. CE. rubicunda; CE. amoena; CE. Bottae; CE. epilobioides ; CE. hispidula. CE. rubra — CE. rosea. CE. salicifolia = CE. densiflora. CE. scapigera= CE. caespitosa. CE. scapoidea = CE. alyssoides, var. CE. serotina = CE. fruticosa, var. CE. sinuata; CE. Drummondii ; CE. humifusa. CE. Spachii= CE. speciosa. CE. spimdosa = CE. serrulata, var. CE. spiralis = CE. cheiranthifolia. CE. strignlosa; CE. dentata; CE. mi- crantha. CE. suaveolens = CE. biennis, var. CE. tenella ; CE biloba ; CE. Bottae ; CE. epilobioides ; CE. quadrivulnera ; CE. viminea. CE. tetragona = CE. fruticosa. CE. triloba; CE. heterantha. CE. uncinala=CE. Spachiana. CE. viminea ; CE. epilobioides ; CE. lepida ; CE. quadrivulnera ; CE. te- nella. CE. vinosa ; CE. amcena ; CE. epilobioi- des. CE. viridescens = CE. cheiranthifo- lia. CE. viscosa = CE. sinuata. CE. Wldtneyi = CE. grandiflora. 618 PROCEEDINGS OF THE AMERICAN ACADEMY CE. WrigMii; CE. Frcmontii. Onngra ihrysuntha, muricata, and vul- garis = CE. biennis. 0. Linkiana = CE. fruticosa, var. Pachylophis Nultallii = CE. csespi- tosa. Sphcerostigma contortion and parvulum = CE. strigulosa. 5. hirta = CE. micrantha. S. spirale and viridescens = CE. chei- • ranthifolia. Xylopleurum, species = CE. speciosa. Characters of New Ferns from Mexico. By Daniel C. Eaton. Polypodidm Ghiesbreghtii. Caudice repente, penna anseriria vix minore, palcis longissimis angustis mollibus pallide fulvis densis- sime onusto ; stipite gracili levi 3-6 pollicari ; fronde subdeltoideo- oblonga chartacea glauca tandem fulva spithamea ad pedalem, pro- funde pinnato-lobata, segraentis oblongis obtusis vel acutiusculis, terminati sat magno integro, lateralibus 5-9 paribus basi sursum cur- rente confluentibus, 2-3 poll, longis, £ — £ poll, latis ; venulis Gonio- pblebii, areolis costalibus soriferis, marginalibus parvis 1-2 seriatis, soris majusculis mediis inter costara et marginem ; sporis reniformibus. A very handsome fern somewhat related to P. loriceum, but abun- dantly distinct from all the species to which I have been able to com- pare it. Lowest segments nearly as large as any of the middle ones, very slightly dettexed, subcordate on the lower side, the upper side being extended as a broad wing along the rachis, in some speci- mens fairly overlapping the subcordate basis of the next pair. In the middle of the frond the segments are separated by a broad, rounded sinus. The wing left on the costa is about half an inch wide, and bears an occasional fruit-dot. The fronds are at first of a pale glaucous green, but eventually, perhaps in drying, turn to a bright brown. The veins, seen by transmitted light, are blackish where they leave the costula, but become less visible toward the ed^e of the segments. When the slender tips of the scales of the caudex are broken off they leave ragged brownish imbricated scales, and when these are removed a pale- bluish surface is discovered. The stem or petiole is very slender, per- fectly smooth, and with the rachis is of a brownish straw-color. I take great pleasure in naming this fine Polypotlium after its discoverer, Dr. A. Ghiesbreght, who found it growing on oaks in the cooler region of Chiapas. It is No. 273 of his distribution. Poltpodium stenoloma. Glabrum ; stipite fusco subspithameo, fere ad basin angustissime alato ; fronde membranacea, glabra, circum- OP ARTS AND SCIENCES: MAY 13, 1873. 619 scriptione ovata, 10 - 13 poll. longa, latitudine § longitudinis, pinnati- fiaq>ius adn?quantibus, fructiferis apice incrassatis ; sepalis orbiculari- ovatis nunc apiculatis margine integerrimis vel obsolete denticulatis ; petalis 6-9 albis ; staminibus fere totidem; ovulis 30-40; seminibus (^ unc. diam.) plerumque numero-is : cast. prrecedentis. — Talinum pygmceum, S. Watson, 1. c. pro parte. — Subalpine region of Wah- satch and East Humboldt Mountains, S. Watson, and Sierra Ne- vada, California, at Summit and Cisco, Kellogg and Bplander. — Flowers about twice the size of those of C. pygmcea, the calyx 3 or 4, and in fruit 5, lines long. Pachystima Canbyi. Surculoso-repens ; foliis oblongo-linearibus parce denticulatis; pedicellis h'liformibus elongatis ; petalis oblongo- ovatis ; stylo brevi.-simo. — Giles County, Virgiuia, on a bluff at the 624: PROCEEDINGS OF THE AMERICAN ACADEMY " New River White Sulphur Springs," William M. Canby. — It is full time that this interesting accession to our Eastern United States flora should be published. While the original P. Myrsinites * occurs plentifully in most wooded districts from the Rocky Mountains to the Pacific in Northern California and Washington Territory, this is known at only one station in the Alleghany Mountains, and makes an addition to the list of those few genera (such as Boykinia and Calycanthus) which are divided between Eastern and Western North America. Mr. Canby discovered the Alleghanian species in 1868, and obtained flowering specimens upon a second visit to the station in the spring of 1869. It was submitted both to Dr. Torrey and to Dr. Curtis. The former determined the genus and indicated the specific characters ; the latter proposed that it should bear the discoverer's name. Both these eminent botanists having passed away without taking any steps in the matter, it is left for me to carry their intentions into effect, and to con- nect with this well-marked species the name of its sole discoverer, one of the most active and excellent of our botanists of this generation. The following note respecting the station, which Mr. Canby has fur- nished, will be useful to botanists who may, it is hoped, make this most rare new species commonly known, and even bring it into culti- vation, f Linum adenophyllum. Hesperolinon, annum, fere glaberrimum ; caule tenui effuse paniculato ; pedicellis filiformibus flore 2-3-plo lon- * Pachystima Myrsinites Eaf. Erecta, dumosa, 1-2-pedalis; foliis ovali- bus ovato-lanceolatis vel fere oblanceolatis magis serratis ; pcdunculis (pauci-vel plurifloris) pedicellisque brevibus ; petalis late ovatis ; stylo subulato. — Not being able to make out the etymology of the generic name, I am in doubt as to its gender. It may be neuter instead of feminine, as I have assumed it to be. f I first saw this plant in August, 1858, on the top and near the edge of a jag- ged and very picturesque bluft" of limestone rock, of about four hundred feet in perpendicular height, which causes a very abrupt bend in the " New River," flowing at its base. It is in Giles County, Virginia, at a place of summer resort called " The New River White Sulphur Springs." The top of the bluff and the hill beyond are covered with a forest of deciduous trees and cedars. Below in the clefts and in the shelves of the rock are found plentifully Sedum telephioides, S. Nevii, Gray, Armaria }><\tnt to the number of 8 or 10 thickening. Eriogonum villiflorum. Acaule, pulvinato-casspitosum, sericeo- villosum ; foliis in caudice multicipiti subcrasso rosulato-confertissimis spathulato lanceolatis (lin. 3-5 longis) albo-sericeis marginibus sub- revolutis ; scapo pollicari nudo ; cyma capituliformi oligocephala bracteis linearibus 4-5 capitula breviter pedicellata paullo breviora involucrantibus stipata ; involucris 6 - 8-fidis ; perigonio campanulato (fundo lato) extus intusque sericeo ad medium usque 6-fido, lobis a?qualibus albidis costa valida instructis ; genitalibus glabris. — Kane County, Southern Utah, collected by Mr. Siler, communicated by Thomas Meehan. — A remarkable species, which, if the ovary were woolly, would be referred to the Laclinogyna section, .but which ac- tually seems, on the whole, to represent an acaulescent division of the Fasciculata. OF ARTS AND SCIENCES: MAY 13, 1873. 631 Dirca occidentals. Foliis ovalibus basi rotundatis ; squamis involucri extus albido-villosis ; floribus fructibusque fere sessilibus ; perigouio breviter infundibuliformi tri - quadrilobo. — California, on the Oakland hills (perhaps in ravines), Dr. J. M. Bigelow (D. palus- tris Torr. Bot. Whippl. p. 77, non Linn.), Dr. A. Kellogg and W. G. W. Harford, no. 895 of distribution. — A second species of this before monotypical genus is of peculiar interest. The Californian Dirca was collected twenty years ago by Dr. Bigelow, " with flowers and young fruit," according to Dr. Torrey, but there are only vestiges of the for- mer in my specimens. If they had been in good condition, Dr. Torrey would have noticed the characters of the. species, which are now mani- fest. The white hairs of the floral bud-scales may not be constant ; for in D. palustris they are occasionally pale ; but the deep and rounded lobes of the more funnelform calyx are characteristic, being from one fourth to one third the length of the tube. Very commonly there are only three sinuses, one lobe being broader and emarginate. The sta- mens are uniformly eight. The original species may be thus charac- terized : — Dirca palustris Linn. Foliis basi angustioribus ; squamis involu- cri nigricanti-villosis ; floribus pi. m. pedicellatis ; perigonio tubuloso- infundibuliformi margine tantum repando. — Nova Scotia to Lake Superior and Lake of the Woods, and southward to Florida along the Alleghanies. Notes on Compositce and Characters of certain Genera and Species, etc. By Asa Gray. The following notes and characters are partly in the way of com- mentary upon the recent most important revision of the order Compo- sitce by Mr. Bentham, in the second volume of Bentham and Hooker's Genera Plantamm, and partly the re-elaboration of certain genera, or the addition or reformation of species, chiefly such as have fallen in my way while engaged upon this portion of the Flora of California. Hofmeisteria Walp. The character " pappi . . . paleis acutis " is indeed applicable to the later species, but not at all to Bentham's original species: the palese are rightly figured in Bot. Sulph. t. 14, as very truncate and lacerate at the summit. Adenostyles Nardosmia. The Californian species referred to this genus in Gen. PI. p. 247 is indeed an interesting and rather anoru- 632 PROCEEDINGS OF THE AMERICAN ACADEMY alous plant. I had in the first instance, as is stated, referred it to this genus ; but afterwards, learning that the flowers were " of the color of yellow beeswax," had thought it necessary to place it in the Senecionees ; and accordingly, in Proc. Am. Acad. 7, p. 361, I published it under the name of Cacalia Nardosmia, in view of the striking resemblance of the leaves to those of Nardosmia palmata, Hook., although the charac- ters of the modern Cacalia were equally repugnant to yellow flowers. The great number of flowers in the head and their size are noteworthy peculiarities of the Californian species. Carphephorus Cass. The character " pappi setae 2 - 3-seriata3, elongatae, inaequales, scabra? vel breviter barbellataj," in Gen. PL p. 249, applies only to the Atlantic United States species (and in them, even, the pappus is hardly more copious than in some species of Brickellia). As to the Californian species, Bentham himself ascribed to G. junceus "setis circa 15 longe et molliter phimosis," and C. atriplicifolius is just the same in these respects ; the setae are equal, rather stout, and in a single rank. The Californian species have a different habit, op- posite leaves at the lower part of the branching stems, and shorter (but still spreading) lobes to the corolla, which apparently is not " pur- ple" ; since Dr. Cooper notes the flowers of G. junceus as yellow, — probably ochroleucous. Indeed, these Californian species are more closely related to Brickellia than the genuine Carphephorus is to Lia- tris, and still more to Kuhnia, into which they would fall if (as in Ayeratum, etc.,) we were to disregard the chaff" of the receptacle. So they may best be left where they are, but under a distinct section, Kuhnioides. Brickellia Ell. : p. 247. The bristles of the pappus are never so much as "breviter plumosai," or perhaps even " subplumosae " (as in PI. Wright.) : these phrases doubtless came from De Candolle's "barbel- lato-plumosa3 " in the character of Clavigera, which was too strong. Xanthocephalum Willd., including Xanthocoma HBK., is well made to include our Gutierrezia yymnospermoides, PL Wright. But by the same rule it must also comprise G. Wriyhtii Gray, PL Wright. 2, p. 78 ( = Xanthocephalum Wriyhtii), and yet the line to draw be- tween the two genera will not be perfectly clear. Gutierrezia Lag. is held to comprise Amphipappus as well as Amphiachyris. The close relationship of the former with the latter is undoubted ; but it is better to separate the two species from Gutierrezia, on account of the sterile disk, with almost if not quite setose pappus. OF ARTS AND SCIENCES: MAY 13, 1873. 633 Amphiaclnjris dracunculoides Torr. & Gray, and A. Fremontii (Am- phipappus Fremontii Torr. & Gray) constitute the species. Pf.ntach.eta Nutt. — P. gracilis Benth. in Ic. PI. t. 1101, judg- ing from the figure and description, cannot be of this genus. The style-branches, even if " not quite so obtuse as represented in the plate," altogether want the long linear-filiform appendage surmounting the short and flat stigmatiferous portion, and, with the opposite leaves toward the base of the stem (and, I may add, the beard represented on the lobes of the disk-corolla), as Mr. Bentham remarks, connect it technically, and it seems to me really, with Helenioidece. It appears to be a species of Oxypappus. As to Pentachceta itself, I find no bilabiation or obliquity in the disk- corollas, such as Nuttall mentions. And there are two species, which may be well distinguished, namely : — Pentach.eta aurea Nutt., from San Diego and the vicinity, has the heads perhaps always many-flowered (but the size of the head, and number of the flowers varying greatly), and the scales of the involucre are acute or acuminate and well imbricated, the exterior successively shorter ; the rays are golden yellow, and it is not known that the pappus is ever abortive. Pentachceta exilis (not a happy name for the larger forms) has the scales of the involucre less scarious, oblong or oval, obtuse, but often mucronate-tipped, all nearly equal in length; -the rays very light yellow ; pappus as in the original species, or in some specimens (mixed with the others) some or all of the bristles short or obsolete. This equally occurs in those with rather large and many-flowered and those with few-flowered heads. Either form may be rayless and homogamous. But some specimens have barely 3 to 5 pistillate flowers, which are destitute of ligule, the tube of the corolla only re- maining. These are Apkantochceta exilis, Gray in Bot. Whippl. (Pacif. R. R. Expl. 4), t. 11, which must be viewed as an occasional and reduced state of a full-rayed species. It is only in the small and mostly rayless forms that the corollas seem to turn purplish. Xanthisjia DC. It appears on the whole most proper to reinstate this genus, although a transition to Aplopappus is afforded by the sec- tion Prionopsis, which seemingly is best restricted, as proposed, to A. ciliatus. — The following is still more worthy of generic separation, and should be ranked rather with genera having paleaceous than with those of setose pappus. VOL. VIII. 80 634 PROCEEDINGS OF THE AMERICAN ACADEMY ACAMPTOPAPPUS, Nov. Gen. Capitulum homogamum, 12 — 30-florum. Involucrum hemisphaari- cum ; squamis imbricatis triserialibus concavis appressis coriaceo-char- taceis obtusissimis margine scarioso eroso-fimbriolato limbatis sub apice macula viridula notatis caeterum albidis, extirais orbicularis, intimis oblongis. Receptaculum subconvexum alveolatura, alveolis fimbril- latis. Corolla? infundibuliformes, limbo 5-lobo. Antherae Asterinea- rum. Styli rami complanati, appendice triangulari-subulata hirtella terminati. Achenia turgido-turbinata, sericeo-villosissima (sub lana 'eviter 5-nervia). Pappus paleaceo-setosus, nempe, ex aristis setisve numerosis, 12 - 18 validioribus (achenio corollaeque aequilongis) com- planatis subclavellatis, creteris brevioribus gracilioribus. — Suffrutex ramosissimus, angustifolius, glaber, capitulis subcorymbosis, floribus luteis. A. sph^erocephalus. Aplopapptis (Acamptopappus) spkcero- cephalus Gray, PI. Fendl. p. 76 ; Torr. in Pacif. R. R. Expl. 7, p. 12, t. 6. Lessingia Cham, is a well-marked but very peculiar genus, which Mr. Bentham might perhaps have placed near to Hinterhubera, had he been aware that only the original species has yellow flowers. The other four are indeed homochromous, but cyanic, and also homoga- mous. Moreover, even L. Germanorum is not truly heterogamous ; the anthers of the marginal flowers being present, and, I believe, com- monly polleniferous. The flowers, at least in L. leptoclada, the only one I have seen in the living state, have a peculiar Centaurea-like aspect quite unlike anything Asteroideous ; yet I should still maintain that it is more nearly related to Corethrogyne than to any other genus known to me. This relationship is manifested in the attenuated anther- tips, as well as in the style-branches, achenia, foliage, involucre, etc. From Bentham's notes : " Species 4 California? Mexicique incola?," and " Achoenia glabra v. sericea," one may suppose that there is a Mexi- can species, still undescribed, which has glabrous achenia. These are silky hairy in all the Jive described species. Aplopapptts. No doubt the name should have been written Hap- lopappus ; but as Cassini in founding the genus dropped the aspirate, and De Candolle followed him, it seems hardly necessary to go with Endlicher and Bentham in restoring it. The genus, like its analogue Aster, comprises very diverse forms, too intimately and variously con- nected to warrant the generic separations which have been attempted. OF ARTS AND SCIENCES : MAY 13, 1873. 635 Like Aster, too, it has a few annual or biennial species, so that Xan- thisma is not supported by this subsidiary character. Bentham makes Aplopappus include all the groups which I have referred to it, except- ing Nuttall's Ericameria and Macronema. I have endeavored to adopt his view while now revising the North American species, but I find it impossible to do so. Neither the style-appendages (which are " long and narrow " in many an admitted North American species), nor the form and nature of the involucre and number of flowers it contains, nor the form of the achenia, nor the texture of the pappus, nor the habit, taken singly or in any practicable combination, enable me to draw any clear line of separation. Nor is the line which must be drawn for the demarcation of Bigelovia (Ckrysotkamnus) any less arbi- trary when we have two bordering genera to deal with instead of one. One of Nuttall's species of Macronema closely connects Ericameria with other sections of Aplopappus, and the other with Chrysothamnus ; while, as to Chrysopsis, a pretty well marked genus is rendered vague by the admission of species of a different habit and no external pappus. It should be noted that Bentham's section Haplodiscus is not De Candolle's Aplopappus sect. Aplodiscus, the typical species of which is referred to Bigelovia ; while the other proves to be a Baccharis. Bentham's doubt whether Aplopappus marginatus Griseb. Cat. PI. Cub. belongs to the genus, or has yellow rays, is well founded. Mr. Wright's tickets preserved here, as well as the one cited by Grisebach, state that the rays are white ; and the plant is doubtless an Aster of the Oxytripolium section, allied to A. Chapmanii and A. Jlexuosus of Nuttall, i. e. A. tenuifolius Linn. Recent collections have furnished the following additions to the Ericameria sections : — Aplopappus (Ericameria) cuneatus. Fruticosus, ut videtur depressus, caespitoso-ramosissimus. glaber, mox glutinosus ; ramis flori- dis ad apicem usque foliosis ; foliis cuneatis vel spathulato-dilatatis (apice lato truncato vel emarginato) integerrimis crassis resinoso- punctatis eveniis, costa vix prominula; capitulis subcorymbosis 20 -24- floris ; involucri turbinati squamis pluriseriatis lanceolatis carinato- uninerviis chartaceo-coriaceis, interioribus marginibus apiceque leviter scariosis disco brevioribus, exterioribus sensim brevioribus ; ligulis circa 3 discum baud superantibus ; appendicibus styli angustis parti stigma- titera? requilongis ; acheniis lineari-oblongis compressis parce hirsutis ; p;ippo parum rigido sordido. — California, in " Bear Valley, alt. 4,500 636 PROCEEDINGS OF THE AMERICAN ACADEMY feet, Sept.," Kellogg, Bolander, etc.; no. 402 of Kellogg and Har- ford's distribution. — Heads half an inch long. Scales of the invo- lucre more numerous, narrower, and less obtuse than those of A. ericoides. Achenia apprently broader and more decidedly com- pressed than in that species ; the pappus similar. Leaves from a quarter to half an inch long, thick and rigid.* — A similar or perhaps the same species was collected in Arizona by Dr. E. Palmer in 1870, but without flowers. Aplopappus (Ericameria) pinifolius. Fruticosus, 2 - 4-peda- lis, glabratus, vix glutinosus; ramis fastigiatis usque ad capitulum solitarium foliosissimis ; foliis fere acerosis (plerisque pollicavibus) pi. m. punctatis ; involucro campanulato foliis summis capitulum ad- sequantibus vel superantibus involucrato, squamis propriis ovato- vel oblongo-lanceolatis acuminatis coriaceis rigidis, margine tantum scarioso ; ligulis circiter 20 brevibus angustis ; appendicibus styli fili- formibus parte stigmatifera brevioribus ; ovariis linearibus fere glabris; pappo rigidiusculo albo. — Near Los Angeles, in a dry river-bed, Bolander, 1873. — The leaves most resemble those of A. laricifolius, but are still more narrow, or those of Bigelovia arborescens. Head always solitary at the summit of a very leafy branch, about four lines high. Most of them in the few specimens received are abnormal, having chaff on the receptacle, and the flowers they subtend often pistillate and ligulate, instead of hermaphrodite and tubular : others are in a normal condition. Aplopappus (Ericameria) Bloomeri, Gray. To this, and not to Nuttall's Ericameria resinosa, belongs the plant figured in the Botany of Wilkes's Expedition, plate 10, under the name of " Aplo- pappus resinosus." Nardophylltjm genistoides, Dolichogyne genistoides Philippi in Lmnasa, 28, p. 738. This striking species occurs in the collection of the United States Pacific Exploring Expedition under Wilkes, with no ticket indicating habitat. It is now evident that it must have been gathered in the Andes near Santiago, Chili. The specimens have lanceolate (rather than oblong-linear) leaves, with a cuspidate tip, and the heads are fully an inch long. Bristles of the pappus conspicu- ously barbellate towards the summit. * All the flowers of one head exhibited a singular monstrosity of the corolla, namely, five or sometimes three or four ligulate lobes outside of the ordinary lobes, and inserted on the middle of the tube, forming an accessory circle of parts, equal- ling in length the true corolla. OF ARTS AND SCIENCES : MAY 13, 1873. 637 Chrysothamnus, Nutt. This is the name adopted in the Genera Plantarum for the group containing not only the Chrysothamnus of Nuttall, and all the species which I have at various times generically combined with it under the name of Linosyris (Schlechtendal having led the way with a Mexican species), but also Bigelovia DC, as re- stricted in Torr. & Gray's Flora. All this consolidation is evidently necessary, as also the separation of these American species from Linosyris of the Old World, the species of which, by the occasional production of heterochromous rays, are now proved to belong to Galatella, i. e. to Aster in the largest sense. But Chrysothamnus is a much later name than Bigelovia, which, as Bentham cursorily indicates in the appendix, is to be adopted. The genus, as now received, is nearly as polymorphous or composite as Aplopappus itself, from which at more than one point it is quite arbitrarily separated. On the other hand, it is as arbitrarily distinguished from the Euthamia subgenus of Solidago, B. diffusa and B. arborescens sometimes developing a small ray or two. As these species have lanceolate or even broader style- appendages, achenia which are not very slender and taper to the base, and ampliate rather deeply cleft limb to the corolla, we have to rely upon the unequal bristles of the pappus and the woody habit to keep them out of Solidago. The typical Bigelovia and all the genuine Chrysothamni partake of the character which is so strikingly displayed in B. pidchella, Bigelovii, and depressa, namely, the imbrication of the scales of the involucre in five (rarely four) strict vertical ranks. The slender style-appendages of Ericameria also characterize the section Chrysothamnus and another group which lies between the two ; while the original Bigelovia has the style as well as the habit of Solidago, section Euthamia. The cusp in the centre of the receptacle of B. nudata occurs (sometimes in a more chaffy form) in the original speci- mens of B. Bigelovii, also in those recently received from Mr. Greene, but not in those collected by Dr. Parry ; and it is represented by some chaff-like extensions of the alveoli in B. Bolanderi, as also by the setiform elongated frimbrillae in B. diffusa. The achenia are at least 5-nerved in almost all the species ; several have intermediate, usually more slender nerves. In the subjoined revision, the first section ends with species which are ambiguous between Bigelovia and Solidago, and the whole with the better characterized but very Soliclagineous original species. 638 PROCEEDINGS OP THE AMERICAN ACADEMY BIGELOVIA DC. excl. §3. (Chrysothamnus Nutt., Benth. & Hook. Gen. PI. 2, p. 255.) § 1. Diplostephioides Benth. & Hook. Involucrum pluriflorum, cylindraeeura ; squamis- siccis latis obtusis spiraliter imbricatis : corollas limbus 5-partitus ! lobis linearibus : appendices styli lan- ceolate parte stigmatica breviores : achenia linearia. Frutices vel arbusculse Andinre, habitu alieno : folia lanceolata penninervia subtus tomentosa : capitula amplius corymbosa. 1. B. hypolettca. Aplopappus hypoleucus Turcz. in Bull. Mosc. 1851, p. 177. Linosyris Mandonii Schult. Bip. 2. B. fuliginea Baccharis fuliginea HBK., ex Benth. § 2. Aplodiscus. Involucrum pluri-multiflorum campanulatum vel turbinatum, in penultimis paucifloris angustum ; squamis spiraliter imbricatis, i. e. seriebus verticalibus baud conspicuis : corollae limbus 5-lobus : appendices styli aut triangulai'i-ovatas aut subulato-lanceolatge parte stigmatica breviores : achenia brevius- cula. * Aplopappoidece, foliis ssepius dentatis lobatisve ; involucri squamis apice herbaceo notatis. 3. B. veneta. Baccharis veneta HBK. Nov. Gen. & Sp. 4, p. 68. Aplopappus (Aplodiscus) discoideus DC. Prodr. 5, p. 350. Linosyris Mexicana, Schlecht. Hort. Hal. p. 7, t. 4. — Mexico : approaches the borders of the United States, but apparently not found within. 4. B. Menziesii. Foliis oblanceolatis spathulatisve rigidis parce argute dentatis nunc pinnatilobatis ; capitulis pauciusculis glomeratis ; involucri 12-20-flori squamis obtusis; acheniis fere linearibus sub- coin pressis. — Pyrrocoma Menziesii Hook. & Arn. Aplopappus (Aplo- discus) Menziesii Torr. & Gray. Linosyris dentata Kellogg, Proc. Calif. Acad. 2, p. 16? — California to Arizona. Very near the fore- going, and- probably passes into it. The most tangible differences are that the scales of the involucre in B. veneta are more or less acute, aud the achenia -shorter and turbinate. 5. B. coronopifolia. Ramis gracilioribus ; foliis punctatis pin- nato-3 - 7-partitis, segmentis (setaceo-mucronatis) rhachique angusto- linearibus nunc fere filiformibus ; capitulis pauciusculis glomeratis ; involucri 10-12-flori squamis obtusis \ acheniis subturbinatis. — Lino- syris coronopifolia Gray, PI. Wright. 1, p. 96. — Texas, and along the OF ARTS AND SCIENCES : MAT 13, 1873. 639 Rio Grande to Southern Arizona (E. Palmer). Dr. Palmer's plant, with rather shorter and broader lobes and rhachis to the leaves, approaches no. 114 of Hartweg's Mexican collection, which probably belongs here. 6. B. Drdmmondii. Suffrutescens, glaber ; folds obsolete puncta- tis linearibus basi attenuatis crassiusculis integerrimis ; capitulis laxius corymbosis ; involucri 20 - 30-flori squamis obtusis coriaceis apice virido, marginibus vix scariosis ; acheniis linearibus subcompressis. — Linosyris Drummondii Torr. & Gray, 1. c. — Texas, near the coast, from Indianola to the Rio Grande. * * Euthamioidece, capitulis numerosiorbus minoribus, involucri squamis apice vel costa minus parumve viridulis vel concoloribus. -i- Folia lanceolata vel linearia : capitula conferte corymbosa lin. 4—5 longa. 7. B. Wrightii. SufFruticosa, glabra, glabrata, vel hirtello-scabra ; ramis e basi lignescente erectis 1 - 2-pedalibus virgatis ; foliis lineari- bus uninerviis vix punctatis mucronatis aut integerrimis aut inferioribus hinc inde laciniato-dentatis ; corymbis polycephalis ; involucro 7-14- floro glabro disco dimidio breviore ; squamis oblongis ovalibusque ob- tusis margine angustissime scariosis apice pi. m. viridulis ; acheniis turbinatis brevibus sericeis. — Linosyris Wrightii, heterophylla, & hir- tella Gray, PI. Wright, 1, p. 95. — Southwestern Texas, on the Rio Grande and its tributaries, to the Gila, Arizona (Sutton Hayes). It varies considerably, and is not unlikely to pass into the next. 8. B. pltjriflora. Praecedenti. similis ; foliis anguste linearibus ; capitulis parum majoribus ; involucri 15-18-fiori squamis lanceolatis acutis vel acutiusculis concoloribus. — Linosyris plurijlora Torr. & Gray, Fl. 2, p. 2o3. — Collected only by Dr. James in Long's Expe- dition, probably on the South Fork of the Platte. 9. B. lanceolata. Fruticosa, puberula ; foliis lineari-lanceolatis trinerviis scabrido-puberulis integerrimis mucronatis ; corymbis poly- cephalis confertis ; involucro G - 8-floro disco parum breviore, squamis oblongis, interioribus obtusis albidis, exterioribus brevibus subacutis farinoso-puberulis ; appendicibus styli angusto-lanceolatis. — Chryso- thamnus lanceolatus Nutt. 1. c. Linosyris lanceolata Torr. & Gray, 1. c. — Rocky Mountains, near the sources of the North Fork of the Platte, Nuttall, by whom only as yet has this well-marked species been collected. 640 PROCEEDINGS OF THE AMERICAN ACADEMY h— -i— Folia angustissime linearia vel filiformia : capitula (lin. 3 longa) vel corymbuli saepius paniculati. 10. B. Cooperi. Glabra, crebre punctata, glutinosa, fruticosa vel fruticulosa ; foliis (ramealibus) lin. 3-4 longis lineari-filiformi- bus subcrassis obtusis ; capitulis coi-ymbulosis ; involucro 6-7-floro squamis 12 - 14 ovalibus oblongisque chartaceis omnino pallidis, inti- mis acutiusculis ; corolla? limbo breviter 5-lobo ; appendicibus sty li deltoideo-ovatis parte stigmatica dimidio brevioribus ; acheniis turbi- natis sericeo-villosis asqualiter 10-costatis. — Southeastern California, on the eastern slope of Providence Mountain, Dr. J. G. Cooper. 11. B. diffusa. Glabra, parura glutinosa, obsolete punctata, basi fruticosa, diffuse ramosissima ; ratnis gracillimis ; foliis (sub-semipolli- caribus) fere filiformibus subcanalicnlatis apice szepe recurvis ; capitulis glomerulisve 2-4-cephalis laxius paniculatis ; involucro 5 — 8-floro, squamis 10-12 ovalibus oblongisque obtusissimis subcoriaceis margine tenuiter scariosis, apice pi. m. viridulo ; corolla? limbo profunde 5-fido, lobis lineari-oblongis ; appendicibus styli subovatis obtusis parte stig- matica multo brevioribus ; acheniis lineari-turbinatis sericeo-hirsutulis 5-costatis ; receptaculo ex alveolis intimis in paleolas aristiformes achenia subsuperantes producto : flores 1 — 2 marginales quandoque imperfecte ligulati. — Ericameria diffusa Benth. Bot. Sulph. p. 23. Solidago (Euthamia) diffusa Gray, Proc. Am. Acad. 5, p. 159. Linosyris Sonoriensis Gray, 1. c. 8, p. 291 ; stylus perperam descr. — Cape San Lucas, in Lower California, Hinds, Xantus. Yaqui River (probably Yaqua River on the eastern side of the Gulf), Dr. E. Palmer. 12. B. arborescens. Glabra, resinoso-punctata, glutinosa ; ramis e caule arboriformi 3 - 6-pedali erectis confertis scopariis foliosissimis ; foliis (2 - 4-pollicaribus) angustissime linearibus demum marginibus revolutis filiformibus ; corymbis conferte polycephalis paniculatis ; in- volucro 20-25-floro discum subtequante ; squamis pluriseriatis lanceo- latis acutis tenuiter puberulis, carina tantum viridulo ; appendicibus styli lanceolato-subulatis parte stigmatica parurn brevioribus ; acheniis brevibus turbinatis sericeo-pubescentibus 5-costatis : flores extimi raro ligulati. — Linosyris arborescens Gray in Bot. Mex. Bound, p. 79. — California, on dry ridges of the coast range, Santa Cruz to Tamalpais. Specimens collected by Professor Brewer above Santa Cruz show an attempt to produce a series of small ray-flowers : this, if at all nor- mal, would remand this species to the Euthamia section of Solidago, OF ARTS AND SCIENCES : MAY 13, 1873. 641 which it resembles, except in the woody stem, and the unequal more copious bristles of the pappus. The alveoli of the receptacle are produced into subulate teeth. § 3. Chrysothamnopsis. Involucrum 5 - 15-florum, cylindraceum ; squamis lanceolatis acurainatis siccis (plerumque chartaceis nee herbaceo appendiculatis vel notatis) spiraliter imbricatis: corollas limbus angusto-infundibuliformis breviter 5-lobus : appendices styli subutato-filiformes Ghrysothamni : achenia angusta, elon- gata, sericeo-pubescentia : pappi setas tenues subaequales : folia angusta, subtrinervia, integerrima. (Transitus ad Aplopappum per A. Macronema.) 13. B. Bolanderi. Suffruticosa, humilis, subviscosa ; ramis lana valde implexa adpressissima dealbatis ; foliis spa'thulato-linearibus ob- lanceolatisve acutatis baud rigidis (circiter pollicaribus) ; capitulis subcorymboso- vel subracemoso-congestis plerisque folio seu bractea folioso stipatis ; involucro 7-11-floro; squamis circa 10 lanceolatis sensim acuminatis nudis: alveoli receptaculi paleaceo-dentiformibus. — Linosyris Bolanderi Gray, Proc. Am. Acad. 7, p. 354. — Mono Pass in the Sierra Nevada, California. The narrow heads are three quarters of an inch long. This species is so obviously and closely related to Aplopappus Macronema {Macronema discoidea Nutt.), that it might be better to refer that plant to this genus, the line, wherever drawn, being almost arbitrary. Bolander found both at Mono Pass, and at nearly the same elevation. 14. B. Howardii. Suffruticosa, humilis, ramosissima, pi. m. lanata, mox glabrescens ; foliis linearibus rigidis (1 - 2-pollicaribus) uninerviis, superioribus capitula pauciuscula subcongesta fulcrantibus paulloque superantibus ; involucro 5-floro, squamis 12—15 oblongo-lanceolatis primum arachnoideis aut sensim aut extimis subito caudato-acuminatis ; corolla? tubo parce villosulo. — Linosyris Howardii Parry in Proc. Am. Acad. 6, p. 541. — Var. Nevadensis. Rigidior ; foliis latioribus sursum pi. m. dilatatis nunc obsolete trinerviis ; involucri magis arach- noidei subviscosL squamis subcoriaceis, siccis apice recurvis. — L. How- ardii var. Nevadensis Gray, 1. c. — Gravelly soil in the " parks " of Colorado, extending to the Sierra Nevada, where it is chiefly the var. Nevadensis. Receptacle paleaceous-dentate, almost as in the preced- ing. The scales of the involucre, more numerous than in the preced- VOL. VIII. 81 642 PROCEEDINGS OF THE AMERICAN ACADEMY ing and following species, are disposed to form 4 or 5 vertical ranks, in the manner of the next section. 15. B. Parryi. Suffrutescens, spithamasa ad pedalem, primum sublanata, mox glabrata ; ramis tantum tenuiter lanato-dealbatis vir- gatis ad apicem usque foliosis ; foliis linearibus (2-4 poll, longis lin. 1-2 latis) basi attenuatis plerisque trinerviis ; capitulis in thyrsum angustum vel spiciformem foliosum congestis foliis fulcrantibns plerum- que longius superatis ; involucro 10 - 15-floro, squamis lanceolatis attenuato-acuminatis pauciseriatis nudis, ektimis bracteantibus sgepius folioso-appendiculatis ; corolla? tubo hirsutulo. — Linosyris Parryi Gray in Proc. Acad. Philad. 1863, p. 66. — Rocky Mountains of Colorado in the region of South and Middle Park. Heads rather numerous, shorter than in the two foregoing, only 6 to 8 lines long. Alveoli of the receptacle short and nearly entire. § 4. Chrysothamnus. ( Chrysothamnus Nutt. excl. sp.) Involu- crum 5-florum, angustum ; squamis siccis carinatis pentastichis (raro tetrastichis), uempe in seriebus verticalibus strictis 5 (rarius 4) imbricatis : corolla? limbus angustus aut breviter aut profundius 5-lobus : appendices styli elongato-subulata? vel fili- formes hispidula?, parte stigmatica lineari sa?pius longiores : ache- nia angusta, linearia : pappi seta? tenues : folia angusta integer- rima. * Achenia glaberrima, 4 - 6-angulata, disco epigyno lato : involucri squama? acuminata? eximie pentasticha?, in utraque seriei verticali 5 - 6 : capitula majuscula (ultra semipollicem longa), corymbu- loso-conferta : corolla? lobi breves : pappus corolla longior. h- Frutices ramosissimi ultrabipedales, ramis rigidis gracilibus scopariis. 16. B. Bigelovii. Subcinerea; ramis junioribus dealbatis ; foliis marginibus revolutis filiformibus ; involucri squamis chartaceis conco- loribus modice carinatis appressis, exterioribus oblongo-lanceolatis lanoso-ciliatis acutiusculis, interioribus angustioribus plerumque acu- minatis ; pappi setis vix rigidulis. — Linosyris Bigelovii Gray in Bot. Whippl. p. 42, t. 12. — Above Albuquerque, New Mexico, Dr. J. M. Bigelow, and probably at a station farther north, Dr. Parry: Huefano- plains, Colorado Territory, E. L. Greene. Notwithstanding the itera- tion, no objection will be taken, I trust, to continuing the dedication of OF ARTS AND SCIENCES : MAY 13, 1873. 643 this species to its discoverer, Dr. J. M. Bigelow, because the genus was named for the veteran botanist Dr. Jacob Bigelow. 17. B. pulchella. Undique glabra; foliis viridibus anguste linearibus uninerviis margine nunc serrulato-scabris, ramealibus subu- latis ; involucri squamis lanceolatis acutatis eximie carinatis fere cori- aceis apice viridibus ; pappi setis rigidulis. — Linosyris pulchella Gray, PI. Wright. 1, p. 96, & Bot. Whippl. p. 43; Torr. in Sitgreaves' Rep. t. 4. — New Mexico, near the Rio Grande, etc. Heads nearly three quarters of an inch when in fruit and the pappus well devel- oped, somewhat the largest of this section. h— ■*- Fruticulosa, ramis spithamaeis simplicioribus e basi decum- bente. 18. B. depressa. Glabra, scabrido-caesia ; foliis lanceolatis seu oblanceolatis mucronato-acutis brevibus (semipollicaribus) rigidis ; in- volucri squamis elongato-lanceolatis sensim acuminatis laevibus charta- ceis concoloribus ; pappi setis rigidulis. — Ghrysothamnus. depressus Nutt. PI. Gamb. p. 171. Linosyris depressa Torr. in Sitgreaves' Rep. p. 161. Mountains of the northern part of New Mexico: not "in the sierra of Upper California, as stated by Nuttall : Dr. Gambell's speci- men is ticketed " Rocky Mountains." Dr. Parry collected it in 1867 in the Sangre de Christo Mountains, and recently Mrs. A. P. Thomp- son sent it from Kanab, Utah. Heads few in a terminal cluster, 8 lines long when fully developed. * * Achenia sericeo-pubescentia : capitula numerosa, minora (haud ultra semipollicaria) : involucri squamae minus numerosa : pappus corollam raro adaequans. +- Involucri squamae caudato-acuminatae. 19. B. cerdminosa. Fruticosa, fastigiato-ramosissima, bi-tripedalis, •tenuissime lanuginosa, mox glabrata saspeque resinoso-glutinosa ; foliis filiformibus vel angustissime linearibus marginibus involutis, rameali- bus saepius hamato-recurvis ; capitulis corymbuloso-fasciculatis ; invo- lucro glutinoso, squamis lanceolatis carinatis praeter parinam viridulam in acumen aristiforme recurvum eximie productam pallidis ; corollae lobis lineari-lanceolatis ; pappo haud copioso. — Linosyris ceruminosa Durand & Hilgard in Jour. Acad. Philad. n. ser. 3 (PL Heerm.) p. 40, & Pacif. R. R. Exped. 5, p. 9, t. 6. — Interior of California, at Tejon Pass, Dr. Heermann. +- -i- Involucri squama? apice obtuso incrassato viridi. 644 PROCEEDINGS OF THE AMERICAN ACADEMY 20. B. teretifolia. Fruticosa, subpedalis, rnmosissima, glabra resinoso-glutinosa ; ramis rigidis brevibus fastigiato-corymbosis ; foliis filiformibus sursum saspius crassioribus obtusis (semi-subpollicaribus) creberrime punctatis primum pruinoso-caesiis mox vernicosis ; capitulis subspicato-confertis ; involucro angustissimo, squamis pallidis ad apicem parvum viridulum saspius glanduligeris, interioribus oblongo-linearibus, extimis sensim ad bracteolas breves reductis ; corollas lobis brevissimis ; pappo baud copioso. — Linosyris teretifolia, Durand & Hilgard, 1. c. t. 7. California, on the mountains around Tejon Valley, Dr. Heermann ; Arizona at Union Pass, Dr. E. Palmer (without flowers). Heads 5 or 6 lines long. +- +- . +- Involucri squama? nee acuminata?, nee apice viridulo notatas, pauciuscula?, nempe in utraque seriei 3-4. ++ Folia resinoso-punctata, angustissima : capitula paniculata. 21. B. paniculata. Fruticosa? pruinoso-subcinerea vel glabra; foliis ramealibus lineari-filiformibus (vix semipollicaribus), summis brevissimis subulatis ramulisque resinoso-punctatis; capitulis laxiuscule paniculatis ; involucri squamis oblongis obtusis tenuibus omnino palli- dis minus carinatis, intimis achenia linearia vix superantibus ; corollas limbo ad medium usque odobo ; appendicibus styli subulato-filiformibus parte stigmatica duplo longioribus ; pappo molli. — Linosyris viscidi- jiora var. paniculata Gray in Bot. Mex. Bound., p. 80. " California," Schott, probably in the southeastern part of the State : the station not recorded, and the specimen incomplete. ++ ++ Folia impunctata, angustiora uninervia, latiora trinervia : capitula corymboso- nunc subthyrsoideo-congesta. 22. B. graveolens. Fruticosa, 1 - 4-pedalis, primum pi. m. lanata, tomento nunc copioso implexo derasibili nunc tenui evanescente ; ramis virgatis ; foliis aut angustissime linearibus mox involutis aut latioribus planis ; capitulis semipollicaribus ; involucri squamis oblongis vel lan- ceolatis obtusiusculis vel obtusis ; corollas limbo breviter 54obo ; appen- dicibus styli subulato-filiformibus parte stigmatica longioribus; pappo satis molli. — B. dracunculoides & B. Missouriensis DC. Prodr. 5, p. 329. Chrysocoma dracunculoides (non Lam.) & nauseosa Pursh. C. graveo- lens & nauseosa Nutt. Gen. Chrysothamnus dracunculoides & speciosus Nutt. Trans. Amer. Phil. Soc. Linosyris graveolens & albicaulis Torr. & Gray, Fl. 2, p. 234. — Plains, etc., Western Arkansas to Dakota, and west to California and Washington Territory. — Exhibits OF ARTS AND SCIENCES: MAY 13, 1873. 645 • numerous inseparable forms, of which the most marked deviations from the general type are : — Var. glabrata. ( Linosyris graveolens var. glabrata Engelm.) Pri- mum tomento tenui cinerea, mox glabrata viridis ; involucri squamis sa?pius angustioribus subacutis ; corolla? lobis paullo longioribus. Var. latisquamea. Iuvolucri squamis latioribus obtusissimis ; corolla? lobis brevissimis. — New Mexico, Dr. Bigelow, Dr. Henry. Inner scales papery and glabrous, the short outer ones tomentose. Var. hololeuca. Undique cano-tomentosa, 'involucri squamis angustis obtusissimis ; corolla? lobis brevissimis, tubo pilis parcis longis arachnoideis instructo. — Owens' s Valley, interior of California, Dr. Horn. (No. 2852, distrib. Brewer.) Var. albicaulis. Caule dense lanato ; foliis glabrescentibus ; in- volucri squamis glabris obtusiusculis ; corollas lobis longiusculis, tubo pilis crebris longis arachnoideis villoso. — Ckrysothamnus speciosus var. albicaulis Nutt. 1. c. Linosyris albicaulis Torr. & Gray, 1. c. — Rocky Mountains, Nuttall, Burke. In most flowers of the species there is a variable amount of short and stronger hairs on the tube of the corolla. In this they are peculiar for their length and cobwebby character. Traces of the same I have now met with in some different forms, notably in the preceding. The form of the corolla-lobes also varies unconformably with other characters, being in some no longer than broad, in others twice or thrice longer. 23. B. Douglasii. Fruticosa, subpedalis ad orgyalem, fastigiato- ramosa, glabra vel [scabro-puberula (nunquam lanosa) ; foliis aut an- gustissime aut latiuscule linearibus lanceolatisve rigidulis ; capitulis lin. 4-5 longis conferte cymosis ; involucri squamis oblongis seu la- tiuscule linearibus obtusis ; corolla? limbo ad medium usque 5-lobo ; appendicibus styli angusto-subulatis parte stigmatica dimidio breviori- bus ; acheniis breviusculis deorsum angustatis ; pappo satis rigidulo. — Crinitaria viscidijlora Hook. Fl. Bor.-Am. 2, p. 24. Ckrysothamnus viscidijlorus & pumilus Nutt. 1. c. Bigelovia viscidijlora DC. Prodr. 7, p. 279. Linosyris viscidijlora Torr. & Gray, 1. c. — Colorado Ter- ritory and Wyoming to the Sierra Nevada, California, Oregon, and Washington Territory. In referring it back to Bigelovia, I venture to give a new specific name for this widespread species, the original one being misleading. For, although the involucre may occasionally be viscid with a resinous or balsamic exudation, it appears to be more generally free from it than any other species of the section ; and the 646 PROCEEDINGS OF THE AMERICAN ACADEMY flowers seem never to be viscid. Nor is Nuttall's name much more appropriate for a species which, though commonly low, is occasionally six feet high. It exhibits several but obviously confluent varieties, of which the following represent the extreme forms : — Var. stenophylla ; with very narrowly linear leaves, half a line wide. Northwestern Nevada, S. Watson in King's Expl. Var. latipolia {Linosyris viscidiflora var. latifolia Eaton in Bot. King, p. 157), with oblong leaves 1 - H inches long and half an inch wide. Northwestern Nevada, S. Watson. These two are glabrous forms. Var. serrulata (Linosyris serrulata Torr. in Stansb. Rep.) has the margins of the leaves ciliate or as if serrulate with rigid, short bristles ; otherwise glabrous or nearly so. A common form in the interior dry region. Var. tortifolia ; like the preceding, but the leaves twisted re- markably. Sierra Nevada, California, Brewer; Mt. Davidson, Ne- vada, Bloomer. Var. puberula (Ghrysothamnus pumilus Nutt., pro parte. Lino- syris viscidiflora var. puberula Eaton, Bot. King) ; ' with leaves, branches, etc., pulvernlently or almost hispidly puberulent. Not rare in the interior districts. § 5. Eubigelovia. (Bigelowice genuince DC.) Involucrum 3 - 4-florum, angustum ; squamis paucis siccis flavidis oblongo- linearibus obtusis carinatis pentastichis vel subtetrastichis in utraque seriei 2 - 3 : receptaculum parvum, alveolis subulato- de'ntiformibus, in centro longe cuspidatum : corolla? lirabus ampli- atus 5-fidus: appendices styli ovato-subulatas, parte stigmatica breviuscula breviores : achenia brevia subturbinata : pappi seta? pauciuscula?, rigidulae. 24. B. nudata DC. Mem. Comp. t. 5, & Prodr. 5, p. 329. Forma spathidcefolia, Torr. & Gray, 1. c, & Var. virgata Torr & Gray, 1. c. B. virgata DC. — Pine barrens in damp soil. Texas to New Jersey, near the coast.* * Species Exclusce. Linosyris squamata Gray in Proc. Am. Acad. 8, p 290, is a Senecionea. L. Texana Torr. & Gray Fl., is Baccharis Texana Gray, PI. Fendl. p. 75. L. ? humilis Torr. & Gray, 1. c. (Crinitaria humilis Hook.), is Brachjactis. L. ramulosa Gray, PI. Wright., is Baccharis ramulosa Gray, PI. Thurb. p. 301. L carnosa Gray, PI. Wright., 2, p. 80, is most probably an Aster of the Oxytripo- lium section, without rays. OF ARTS AND SCIENCES : MAY 13, 1873. 647 Aster. We should receive the genus in all the extent it now re- assumes, Machceranthera included, although that on the whole well bears separation, as does Diplopappus section Triplopappus. But the separation of Nuttall's Dieteria from the section Machceranthera and its reference to Euaster does not seem to be called for. The general bi- ennial or even annual character, which is foreign to true Aster, as well as the tendency to pinnatifid or incised leaves, belongs to both alike ; the style-appendages are narrow in both ; and the achenium of Dieteria, equally with that of Machceranthera, has several slender nerves on the faces, as well as a strong rib on each margin. I may here append the note, that — Aster tenuifolius Linn., as the Linnosan herbarium shows, and the character confirms, is founded on the plant known as A. flexuosus Nutt. To this alone (and not to Plukenet's plant) the phrase " pedun- culis foliolosis " and the added descriptive notes relate. Aster subulatus Michx. is truly the name to be preserved for our common northern maritime Oxytripolium, the original A. linifo- lius of Linnasus (Hort. Cliff, etc.) being really a Galatella. Aster arenarioides D. C. Eaton, in herb., is the name which should be borne by the plant described and figured as Eriyeron steno- phyllum Eaton in Bot. King, p. 152, t. 17 (not E. stenophyllum Gray, PI. Fendl.), a species which most resembles A. pauciflorus Nutt. in its more slender form, but has only 2-nerved ovaries, a different glandu- losity, etc. The akenes of A. pauciflorus are delicately 8 - 10-nerved. Bentham's character of Oxytripolium needs extending iu this respect on account of more than one species. Brachyactis Ledeb. On the whole it seems clearly preferable to adopt this genus ; but, as extended by Mr. Bentham, it includes two types, of somewhat different affinities. The original B. ciliata has lanceolate-subulate style-appendages, narrow and rather turgid achenia, with a large epigynous disk and marginal nerves rather inconspicuous, aud a simple pappus of copious equal bristles. To this, as I long ago observed, belongs Tripolium anyustum Lindl. But I confounded with it a second species, of more southern range, which Mr. Bentham has now distinguished (as var. camosula, in Hook. Ic. sub 1106), and which has not only broader and more foliaceous involucral scales, but also distinct (purple) ligules much exceeding the style. As this must be Nuttall's Tripolium frondosum, although his specimens are too young to show it clearly, it may take the name of B. frondosa. These two 648 PROCEEDINGS OF THE AMERICAN ACADEMY species were not unnaturally associated with Aster ( Oxytripolium) lini- folius, or rather subidatus. Of the other species referred to the genus, I have had only B. robusta Benth. and the figure of B. menthodora to examine. The. former is more conyzoid in the involucre, as well as in the small number of hermaphrodite flowers, has broad and obtuse style-appendages (as those of B. menthodora are represented), broader and flat achenia with promi- nent marginal ribs, and a pappus of two distinct sorts of bristles, those of the outer set not longer than the width of the achenium. Boltonia L'Her. is made by Bentham to include my Dichceto- phora ; but the Californian species referred to it (p. 209) proves to be Perityle Acmelld of PI. Fendl. Erigeron Linn, is maintained in the wide sense to which we are here accustomed. For our section Stenactis, Nuttall's name Phcenac- tis is preferred, because Cassini's name was misapplied by Nees and by De Candolle, and both the original Stenactis (Polyactis Less.) and the leading one of Nees and De Candolle fall into Phalacroloma. That leaves the name free for the employment that was made of it ; yet it is right and clearer to keep up Nuttall's sectional name. But the section itself does not very well hold out. As to Woodvillcea, the conjecture that it is E. glaucum was long ago positively confirmed. E. armeri^efolium Turcz., in an authentic Siberian specimen ex- amined, wholly wants the internal filiform pistillate flowers (De Can- dolle's and Turczaninow's remark which implies the contrary notwith- standing) ; and to it clearly belongs E. glabratum var. minor Hook, (a large form of which must be E. lonchophyllum Hook.), and E. racemo- sum Nutr., at least in part, — a species which is not uncommon in the Colorado Rocky Mountains and the Sierra Nevada. Hall and Har- bour's 232 is a large form of it. E. Bellidiastrum Nutt. Some careless determinations of mine, confounding this with the very similar E. divergens, have misled Pro- fessor Eaton into altering the character of the species by assigning to it the double pappus of the latter. It has a simple and wholly decidu- ous pappus, and its achenium is tipped with a broad and white epigy- nous disk. Hall and Harbour's 246, Hall's Oregon 249, and the E. Bellidiastrum of Bot. King, p. 150, all belong to E. divergens. Besides the pappus, the receptacle in the more northern specimens of E. diver- gens is strongly convex. It is less or slightly so in some forms, espe- cially in E. cinereum Gray, PI. Fendl., which on the whole I cannot V OF ARTS AND SCIENCES: MAY 13, 1873. 649 specifically distinguish. But E. flagellare Gray 1. c. is perennial, at least by its stolons, and quite distinct. E. ursinum Eaton, in Bot. King, 1. c, needs to be compared with E. radicatum Hook. E. c^espitosum Nutt., a considerably leafy-stemmed species, more or less canescent, with a fine and chiefly spreading roughish pubescence, its leaves rather short, style-appendages extremely short and obtuse, minutely hairy akenes 2-nerved, or rarely 3-nerved, and the outer short pappus squamellate and conspicuous, has been more or less con- founded with some other pretty well marked species, such as E. Nevadense. Pube tenui appressa substrigosa pi. m. cine- rea; caulibus e rhizomate elongato repente adscendentibus vel erectis ; fioridis scapiforrnibus vel apice nudis monocephalis 4 - 9-pollicaribus ; foliis lineari-lanceolatis vel spathulato-linearibus integerrimis, imis elon- gatis (2 - 6-poll.) in petiolum attenuatis, caulinis acutis, summis ad bracteas subulatas diminutis ; involucri squamis asqualibus hirsutis sub- glandulosisque (lin.' 4 longis) ; ligulis 25-30 latiuscule linearibus albis (lin. 3-4 longis) uniseriatis ; appendicibus styli ovatis acutis nunc acutissimis ; acheniis oblongis pubescentibus ad margines tantum nervatis (seu radii 3-nervatis) ; pappo exteriore parco setuloso. — E. ccespitosum var. grandiflorum Eaton in Bot. King, p. 153, pro parte, nempe, no. 548, non Torr. & Gray. — Sierra Nevada, on the borders of the State of Nevada : near Virginia City, Bloomer ; Mount Stanford, etc., Bolander, Kellogg ; W. Humboldt Mountains, S. Watson. Var. ? ptgm^euii : foliis plerisque in caudice crasso confertis angus- to-spathulato-linearibus (raro pollicaribus) ; scapis 1 -3-pollicaribus ; capitulo dimidio minore ; involucro minus hirsuto ; ligulis purpureis. — Above Ebbett's and at Mono Pass, California, alt. 9,500 to 10,750 feet, Brewer. Very likely a distinct species. E. argentatum. Pube brevi molli adpressissima sericeo-inca- num ; caulibus e rhizomate (ut videter repente ?) erectis (spithamseis ad pedalem) simplicibus apice nudo monocephalis ; foliis linearibus, irnisve angusto-spathulatis in petiolum attenuatis, summis sparsis subu- latis ; involucri (lin. 4 alti) squamis lineari-lanceolatis, exterioribus brevioribus atque caulis canescentibus ; ligulis plus 50 latiuscule linearibus albis (fere semipollicaribus) ; appendicibus styli brevissi- mis obtusissimis ; acheniis (potius ovariis) crebre villosis G - 10-nervu's ; pappo duplici, utroque copioso, exteriori squamellato-setoso interiore % breviori. — E. ccespitosum Eaton, Bot. King, 1. c. pro parte, nempe, no. VOL. VITI. 82 650 PROCEEDINGS OF THE AMERICAN ACADEMY 549. — Nevada, in the Pah-Ute Mountains, Ruby Valley, etc., alt. 5,000 to 6,000 feet, S. Watson. Pahranagat Mountains, Southeastern Nevada, Miss Searls. E. canum Gray, PL Fendl., is well marked by its perfectly glabrous, narrow, conspicuously about 10-ribbed akenes. The pubescence, which is seldom as silvery as in the preceding, is somewhat strigose, and on the involucre loose or hirsute ; the heads only half as large as those of E. argentatum ; the rays narrower ; style-appendages equally short and obtuse. This species proves to be more abundant than was supposed, I having confounded it with E. ccespitosum. New Mexico, Fendler, 375 ; Parry, 83 and 88 of coll. 1867. Wyoming, on the Platte, Geyer, 30, in part (the rest being E. pumilum). Colorado Territory, Hall and Harbour, no. 244, wrongly referred to E. ccespitosum. E. stenophyllum Gray, in Bot. Whippl. p. 42 (98), from New Mexico, Dr. Bigelow, has achenia villous with long soft hairs and only marginal nerves, obtuse style-appendages, and a very copious simple pappus. The proper tube of the corolla in the di?k is very short, the cylindrical throat sparsely villous. Var. ? tetrapleurtjm has smaller heads and flowers, and mostly 4-nerved, rarely 2 - 3-nerved ovaries. The plant is more canescent, and the stems fork once or twice. It lies between E. stenophyllum and E. filifolium. — Southern Utah, Mrs. A. P. Thompson, Captain F. M. Bishop. Eaton's E. stenophyllum, Bot. King, p. 152, t. 17, a homonym, is his Aster arenarioides, vide supra. Nut tail's earlier E. stenophyllum in PI. Gamb. is his E.foliosum, with narrower leaves. E. Ervendbergii. Strigoso-hirsutultim ; caulibus e basi decumbente erectis gracillimis inferno crebre foliosis superne longe nudis moilo- cephalis ; foliis lanceolatis basi attenuatis integerrimis vix pollicaribus ; • involucri squamis subrequalibus strigoso-puberis ; ligulis 50-60 an- gustis elongatis ut videtur albis ; ovariis glabellis ; pappo radii dis- cique duplici, exteriori e setulis numerosis basi vix concretis diametro ovarii aequalibus, interiori e setis uniseriatis fragilibus subdeciduis. — Wartenberg, Mexico, Ervendberg, no. 69. Root not seen ; slender stems a foot high. Head about as large as in E. strigosum. E. delphinifolium Willd. Bentham, in Gen. PI. p. 281, suspects that the New Mexican plant" of Wright, no.' 1170 (with which agrees Thurber's 771, and Palmer's 421 from Arizona), is different from the original Mexican species. The exterior pappus indeed consists of OF ARTS AND SCIENCES : MAY 13. 1873. 651 rather narrower and longer squamella? ; but otherwise I see no dif- ference. Ach^togkron Gray, PL Fendl. p. 72. This is overlooked in the Genera Plantarum; else it would probably have been referred to Erigeron as a sort of Phalacroloma without bristles either in disk or ray. But technically, and perhaps with sufficient reason every way, it should hold its rank as a genus in the Bellidece, just before Myriactis. Baccharis. The receptacle is conical in B. Douglasii DC. Evax. The paleae of the receptacle vary from strongly carinate- cyrabiform in some species (as in E. Heldrichii, in which they are wholly pointless) to barely concave in others : in E. perpusilla there are subtending and partly enclosing paleae for each sterile flower. Our Californian Hesperevax may very well remain in the genus ; but it constitutes a marked subgenus, not only on account of the firm and at length rigid,, comparatively persistent involucral scales and paleaa which are barely concave, but also on account of the receptacle. This is not correctly represented on the plate in Bot. Whippl. Exped. The body of it, on which most of the fertile flowers are borne, is rather convex than conical* beset with villous hairs, which are fully as long as the achenia, and abruptly produced at the centre into a narrow column, which bears very i'aw or hardly any pistillate flowers and paleae except near its base, while its summit bears a whorl of three to five, broadly ovate or obovate, blunt or sometimes mucronate, flat paleae, of nearly herbaceous texture, more or less woolly inside, forming an involucre to the small cluster of hermaphrodite-sterile flowers, rigid and radiately spreading with age, at length deciduous. The achenia, moreover, are smooth (not papillose or glandular), clavate-obovate and decidedly obcompressed. The transverse brownish line above their base is marked in the coat of the seed. The diversity in the villosity of the receptacle, and the length and thickness of its elevated portion (being very slender, even filiform, and a line high, in no. 415 of Kellogg and Harford's collection), appeared to indicate more than one species, but I cannot make them out. Micropus. The generic character in the Genera Plantarum by an oversight requires the fertile flowers to form only a single series. I should hardly change that ; for the genus clearly appears to me to hold only the first two sections, and to rest on two good and peculiar charac- ters : 1, the paleae, which so completely and strictly enclose the achenia, 652 PROCEEDINGS OF THE AMERICAN ACADEMY are firm coriaceous or cartilaginous in texture, at length inclined to split into two valves ; 2, the acbenia are strongly gibbous, so that the style, with its filiform corolla, is lateral : the pappus wholly wanting. Consequently, — Stylocline Nutt., with straight or hardly oblique achenia having a terminal areola (as in all Filaginece except Micropus), and with its other good characters, is to be restored : it will well include Bentham's section Diplocymbiurn and my Ancistrocarphus, thus constituting a genus of at least four species, thus: — § 1. ElISTYLOCLINE. S. GNAPHALIOIDES Nutt., S. MICROPOIDES Gray. § 2. Diplocymbium. {Micropus sect. 3, Diplocymbiurn Benth.) Flores foeminei biseriati ; paleis tenui-membranaceis extus lanosissi- mis, apice scarioso mutico, iis circa flores steriles angustioribus minus involutis. S. Griffithii, Gnaphalii sp. Griffith," Notul. 4, p. 240, t. 468. Affghanistan, Griffith ; no. 3220, 3221, Kew. distrib. §3. Ancistrocarphus. Flores foeminei 5-10 uni— biseriati, paleis cymbiformibus fere Diphcymbii (sed minus lanatis firmioribusque) obvoluti, steriles paleis 5 majoribus ovato-lanceolatis subfoliaceis apertis in cuspidem incurvam rigidam desinentibus persistentibus fructiferis delapsis stellato-patentibus. — S. filaginea, Ancistrocarphus fila- gineus Gray, Proc. Am. Acad. 7, p. 356. Psilocarphus Nutt. The most important thing to note is, that the leaves, even from the base of the stem, are almost always opposite. P. globiferus, i. e. the Chilian Micropus globiferus of Bertero (Bezanilla Ghilensis Remy), as well as I can judge from a single specimen, is distinguishable from the North American species by its less elongated (narrowly elliptical-oblong) as well as smaller achenia. The northern species seem to be reducible to two, P. Oreganus and P. tenellus. Var. elatior of the former (Oregon, Hall, no. 271, Kellogg and Har- ford, 418) is a remarkably luxuriant state, a span high, and erect. Filago Arizonica. Floccoso-lanata, a basi ramosissima, diffusa (spithamaaa) ; ramis proliferis filiformibus ; foliis linearibus brevibus, caulinis plerisque glomerulos terminales et alares involucrantibus ; capitulis ovato-pentagonis ; floribus foemineis 10-15 epapposis, her- maphroditis (sterilibus?) 5-10 papposis ; receptaculi angusti paleis ovalis, fructiferis cymbiformibus dorso chartaceo lanosissimis, apice hya- 1 lino brevi obtuso, interioribus subplanis scarioso-hyalinis acutiusculis ; acheniis laevibus. — Arizona, at Verde Mesa, Dr. Charles Smart, coll. OF ARTS AND SCIENCES : MAY 13,' 1873. 653 1867, received from Dr. Parry. Habit of F. spathulata, proliferously diehotoinous ; the branches filiform and becoming glabrous. Heads numerous in the capituliform clusters, a line and a half long. Fructif- erous palese almost as deeply saccate as in F. Californica. Anaphalis margaritacea. We prefer the reference of Gnapha- lium margaritaceum Linn, to this genus (standing between Antennaria and Gnaphalium), rather than to Antennaria by Brown, or to Heli- chrysum by Weddell. No. 300 of E. Hall's Oregon collection, inadver- tently named Gnaphalium leucocephalum Gray, is a narrow-leaved form of our common Everlasting. Pterigopappus Hook, f. Although Maia of Weddell is referred to this genus in the Genera Plantarum, only the original Tasmauian species is mentioned. P. compactus from the Andes of New Grenada is the second species of this singularly distributed genus. Adenocaulon Hook. Benthara refers this genus to his Millerieos in the tribe Helianthoidece, with evident misgiving, remarking in his Notes on the order that it is a less perfect stranger there than by the side of Tussilago. That is true enough ; but the wholly alternate leaves and naked receptacle are out of place there, and there is nothing but the sterile central flowers which favors the association. Upon a study of our species for the Californian flora, I find that its anthers, instead of " basi integral vel vix minute bidentatge," are strongly sagit- tate, in the manner of Bentham's diagram, no. 6, except that the five points of the auricles are obtuse, although quite as much produced. The style being conformable, it is clear to me that the genus should be transferred to the Inuloidece, where, from its peculiarities of fruit, involucre, and corolla, it may form a subtribe, Adenocauloneee. Ambrosia artemislefolia, etc. In his notes on Composite, and more briefly in Genera Plantarum, Bentham has cited an observation of Meehan, that in this plant " the inflexed setiform appendage is only to be found on anthers which do not present perfect pollen ; the abundantly polleniferous anthers are broad, without horns." I find this appendage equally surmounting anthers that have been filled with pollen, and those that are so filled, only in the latter they are not so readily discerned. I have never seen any normal staminate heads with non-polleniferous anthers. Silphiu.ai gracile. Scabro-hispidulum ; caule gracili striato 1 -2-pedali mono-tricephalo subscapiformi ; foliis radicalibus imisque' caulinis ovato-oblongis membranaceis denticulatis utrinque acutis vel 654 PROCEEDINGS OF THE AMERICAN ACADEMY acuminatis longe petiolatis alternis, superiovibus parvis paucis interdum oppositis lanceolatis sessilibus integerrimis ; involucri squamis confor- mibus suba?qualibus erectis ovato-lanceolatis ciliolatis basi nervosis ; ligulis 12 - 15 ; acheniis cum ala latissima tenui orbiculatis sinu lato eraarginatis laevibus. — Open woods, Texas, near Houston, Lindheimer (anno 1842, ex Engelmann), E. Hall, 1872. The radical leaves in Lindheimer's specimen are larger, 10 to 15 inches long, including the slender petiole, and pubescent beneath. Hall's plant has smaller leaves and less pubescen e. Zinne^e Benth. This subtribe of Helianthoidece appears to be well founded, by Bentham, upon six Mexicano-North-American genera ; and, as he remarks, our Heliopsis of the United States seems to hold its sessile ligules as' persistently on the fruit as does the Mexicano- South-American species. But the use which is made of this chai^acter might call for the addition to the subtribe of a species which I long ago characterized as forming a subgenus of Balsamorhiza, and which has remained unnoticed, namely: — Balsamorhiza (Kalliactis) Careyana Gray, PI. Fendl. p. 81. In this the ligule becomes as dry and papery as in any Zinnia, and is equally persistent ; but while the latter is continuous, the former has the short tube of the ligule evidently articulated with the summit of the achenium. The styles, etc., being exactly as in Balsamorhiza, the species ought not to be separated from that genus. But it further differs from all the other species in its cinereous-pubescent achenia. Wyethia Nutt. In a natural arrangement this genus should stand near to the preceding, to which it is much more related than to the proper Helianthus-group. The pappus is of the coroniform order, and perfectly continuous with the broad summit of the achenium, which is very obtusely quadrandular in the typical Alarconia and its near ally ; the sides in all are nerved. The species, as far as known, are subjoined.* * WYETHIA Nutt. (Alarconia DC.) ■ § 1. Achenia crassa, quadrata, angnlis obtusissimis, pappo calyciformi 5 - 8- fido rigido coronata. Capitula magna, latissima, foliaceo-bracteata, seu involucrum foliaceum amplum. Folia lata, amplissima. 1 . W. helenioides Nutt., Gray, PI. Fendl. Tomentosa vel tomentulosa ; acheniis cinereo-puberulis ; dentibus corolla; disci extusparce hispidulis. Alarconia, DC. 2. W. glabra Gray, Proc. Amer. Acad. 6, p. 543. Glabra, glutinosa; acheniis glabris ; dentibus corollae disci brevioribus glaberrimis. OF ARTS AND SCIENCES : MAY 13, 1873. 665 Tithonia Thurberi. Caule gracili superne hispido ; foliis ovatis indivisis ; capitulo pro genere p£.rvo ; involucri squamis obtusis, exteri. § 2. Achenia angustiora angulis acutis, dis •. salte.a lateraliter compressa. Capitula mediocra, nuda, rarius basi foliata. * Albo-tomentosa, vel demum glabrescens, foliis latis petiolatis, caule nunc ramoso. 3. "W. oyata Gray, 1. c. 7, p. 357. Tomentoso-pubescens ; foliis lato-ovatis cordatisque ; involucri lato-hemisphnsrici squamis plurimis apice patentibus ; pappo paleaceo-calycitbrmi brevi exaristato. 4. W. mollis Gray, 1. c. 6, p. 55-4. Albo-lanata, nunc glabrescens ; foliis oblongis summisve ovatis reticularis; involucri campanulati squamis 10-12 latioribus erectis discum superantibus ,• pappo piaster coronulam truncatam 2-5- aristato. * * Glaberrima, foliis angustioribus, caulinis sessilibus. 5. W. amplexicaclis Nutt. Involucrum campanulatum. Pappus vix ac ne vix aristiformis. * * * Hirsuto-pubescens, foliis lanceolatis. 6. W. btelianthoides Nutt. Pygmaea, pube laxa subvillosa ; involucro etc. subsequentis ; pappo brevi exaristato rariusve arista unica gracili. — This is Nuttali's original Wyethia, founded on specimens, in flower only, collected by Wyeth " in the Valleys of the Rocky Mountains near Flat-Head River" (as it would appear in about lat. 47° long. 114°), to which Nuttall afterwards added a plant collected bv himself " near the Blue Mountains of Oregon." The species is imperfectly known, and seems to differ from the next mainly in the awnless'or occasionally one-awned pappus. I cannot well examine the interior of the single capitulum of Wyeth's specimen in our herbarium. A few separate flowers from one of Nuttali's own collecting are awnless. 7. W. angustifolia Nutt. Spithamaea ad ultrapedalem ; foliis radicalibus elongatis utrinque attenuates ; involucro polyphyllo patente, squamis plerisque foliaceis lato-linearibus nunc subspathulatis ssepius obtusis aut undique aut ad margines pilis longis hirsutis ; acheniis interioribus 1-2 extimis saepius 3-4- aristatis, arista valida hirta. Alarconia angustifolia DC. Wyethia robusta Nutt. is merely one of the larger forms of this common species of California and Oregon. 8. W. Akizoxica. Pedalis, scabro-hirsuta ; caule 1 - 2-cephalo ; foliis oblon- go-lanceolatis integerrimis, superioribus sessilibus ; capitulo parvulo ; involucro hemisphaerico, squamis oblongo- seu ovato-lanceolatis (lit videtur erectis) pilis brevibus cinereo-hirsutis ; corolla? dentibus extus hispidulis; ligulis circiter 10 (subpollicaribus) ; acheniis immaturis fere praecedentis. In pine woods and bot- toms, near Bear Springs, Northern Arizona, Dr. E. Palmer. Also Southern Utah, Captain F. M. Bishop ; a less hirsuie form. #** * Hispido-scaberrima, foliis linearibus, ligulis nullis ? 9. "W. scabra Hook. Lo.nd. Jour. Bot. 6, p. 245; Gray in Bot. "Whippl. p. 46 (102). This little known species of Utah ? and New Mexico, is peculiar in habit* and perhaps in the absence of rays ; very likely it is not of this genus. 656 PROCEEDINGS OF THE AMERICAN ACADEMY t oribus parce hispidis breviter foliaceis ; ligulis brevibus aurantiacis ; pappi squamellis lineari-oblongis coriaceis, aristis parum scabris. T. tubceformis Bot. Mex. Bound, p. 90, non Cass. — Magdalena, in tbe Mexican province of Sonora, Thurber, no. 910. This species is indi- cated by Benthara, in Gen. PL p. 375. In the genus now reduced to its natural proportions and well characterized, it is the smallest flowered species, the heads being only half an inch long, and the ligules short. Flourensia DC. As to F. corymbosa, if C. Gay's plant of the name is genuine, it is clearly a Viguiera (as that genus is now well characterized by Bentham), and the character " achenia villosissima " (DC) is not applicable, as it is to the genuine species. These I can- not regard as belonging to Helianthus, They appear to be quite dif- ferent in habit, and hardly less so in the style, corolla, and achenia ; and the pappus, seemingly not caducous even in F. thurifera, is mar- cescent in the more genuine discoid species, F. laurifolia, and per- sistent in the anomalous F. cernua. F. laurifolia and F. thurifera are not so very dissimilar in habit ; both have the chaffy awns of the pappus disposed to be trifid, and want the accessory nerves to the corolla. F. cernua, which shows these nerves, but is otherwise most unlike Helianthus, and has turgid instead of flat achenia, still accords with Flourensia in most respects. Encelia Adans. The combination which I had proposed of Gercea and Barrattia with Sinisia is justly carried a step further by re- ferring all these to sections of Encelia. I have detected rudimentary awns to abortive ray-achenia in specimens which in Bot. Mex. Bound. 1 had referred to E. conspersa Benth. (a species still obscure), but should now regard as a mere variety of E. Californica. This species is distinguished from the Chilian E. oblongifolia by the leaves more obtuse at base, and the achenia with a much shallower emargination. The species of the section Gercea are : — Encelia (Gercea) nudicaulis. Herbacea, pube brevi densa ar- genteo-canescens ; foliis omnibus radicalibus orbicularis integerrimis basi 3-5 nervata in petiolum nudem latiusculum longum subito angus- tatis ; scapo subpedali prorsus nudo monocephalo ; involucri incani lati squamis triseriatis lanceolatis discum subtequantibus ; ligulis ultra 20 lanceolatis pollicaribus cum floribus disci aureis ; acheniis obovatis undique villosissimis marginibus apiceque callosis ; pappo ex aristis 2 subulatis sat validis pilos hand superantibus et squamellis intermediis minimis plurimis e membranulo fere continuo brevissimo ortis. — OF ARTS AND SCIENCES : MAT 13, 1873. 657 — Utah, probably in the southern part of the Territory, Captain F. M. Bishop. This remarkable species, with head fully as large as that of E. Californica, on a perfectly naked scape, departs a little from the generic character in having minute and short somewhat membrana- ceously connected squamelke between the awns, of which mere vestiges persist on the mature achenium. Encelia (GeRjEa) argophylla. This is the name which must be borne by a close congener of the preceding, the Tithonia argophylla of Eaton in S. Watson, Bot. King, p. 423, if the most scanty mate- rials on which it was founded belong to one plant, as is likely. The foliage described consists of tufts of radical leaves, which are ex- ceedingly silvery-white with a very dense and close-pressed, short, soft silky down, all rhombic-spatulate with long-tapering base and abruptly acuminate or acute apex. The separate and fragmentary head, so far as the means of comparison exist, might be identical with that of the preceding species at maturity. Its achenia are four lines long ; the very numerous and fine intermediate squamellce are, however, appar- ently more setulose. " Dr. Palmer describes the stem as erect, two or three feet high, leafy, with cauline leaves similar to the radical ones." He informs us that it was found at St. George, in Southern Utah. Encelia (Gek^ea) eriocephala, Simsia canescens Gray, Bot. Mex. Bound, p. 89, the specific name changed on account of the old Encelia canescens. It is remarkable for the lona; and white villous hairs which densely fringe the lax and linear-lanceolate herbaceous scales of the involucre; and the awns of the pappus are naked. Encelia (Ger^a) frutescens, Simsia frutescens Gray, 1. c, to the character of which it should be added that the rays are more commonly present, 6 to 12 in number, and 3 - 4-lobed. Encelia (Gerjea) scaposa, Simsia scaposa Gray, PL Wright. 2, p. 88. Still known only from Wright's New Mexican collection. The disk-corollas are yellow; the thin chaff of the receptacle acutish. — Nearly related to this is Encelia (Ger^a) microcephala. Herbacea, puberula; caulibus e radice perenni erectis strictis pedalibus apice corymboso-oligocepha- lis ; foliis scabro-hispidulis integerrimis subcoriaceis, radicalibus cum caulinis infimis oppositis spathulato-lanceolatis obtusis triplinerviis in petiolum attenuatis, cseteris minoribus alternis lineari-lanceolatis (sub- pollicaribus), superioribus sensim decrescentibus ; involucri cam- panulas disci brevioris squamis oblongis gradatim imbricatis subcori- VOL. VIII. 83 658 PROCEEDINGS OF THE AMERICAN ACADEMY aceis ; ligulis paucis (flavis) brevibus ; disci corollis atro-purpureis, paleis obtnsissimis vel truncatis ; acbehiis (immaturis) undique villosis- simis 1 - 2-aristatis, aristis basi villosissirais. — Sierra Abayo, New Mexico? Dr. Newberry in McComb's Expedition. Heads 2 to 4, on rather short peduncles, only 4 lines high ; the oblong rays hardly exceeding the disk. EncELia (Gerjea) albescens. Herbacea ? pube sericea brevi scabrida argenteo-canescens ; foliis (ramealibus) alternis ovato- seu lan- ceolato-oblongis subintegerrimis basi subcuneata trinervatis breviter petiolatis ; capitulis solitariis longius pedunculatis ; involucri biserialis squamis lanceolatis asqualibus canescentibus ; floribus luteis ; ligulis 8 — 10 obovatis majusculis ; paleis receptaculi acutis ; acheniis (im- maturis) cuneato-oblongis prater margines creberrime sublonge ciliatos fere glabris ; pappo 1 - 2-aristellato nudo. — In the western Mexican province of Sonora, Dr. Edward Palmer, coll. 1869, no. 21. Leaves in the specimen less than an inch long, the short petioles not dilated at base. Rays half an inch long. Young achenium slightly emarginate at the apex, the dense ciliate hairs of the margin in length scarcely equalling half its width, or at the summit rather longer, and about half the length of the longer delicate naked awn of the pappus, the other awn seldom longer than the hairs, often shorter or obsolete. In aspect and in the nature of the pubescence this very much resembles another scarce Composita of the same region, namely, Viguiera nivea (supposing it to be the Encelia nivea of Bentham, Bot. Sulph.), the plant described by me in Bot. Mex. Boundary as HeUanthus tephrodes. That, by the pappus and ovary, is evidently a Viguiera. The present plant is a good Encelia, of the Gercea section by the pappus, although the awns are unusually delicate and one of them inclined to disappear. The villous ciliation of the achenium, although shorter than in its congeners, is too long and dense for a Simsia. Encelia (Barrattia) calva, Simsia calva Gray, PL Lindh. 2, p. 228, is remarkable for the pair of foliaceous stipule-like appendages at the base of uniformly opposite leaves. These are altogether want- ing in Encelia (Barrattia) Ghiesbreghtii. Herbacea? ramosa; va- mis gracilibus foliosis ; foliis omnibus oppositis angusto-ovatis acurai- natis rariter serratis basi truncatis vel subcordatis supra hirtello-velu- tinis subtus molliter canescenti-sericeis ; petiolis brevibus inappendicu- latis ; involucro campanulato Simsice, squamis lineari-subulatis villosis OF ARTS AND SCIENCES: MAY 13, 1873. 659 glandulosisque, interioribus discum adsequantibus ; floribus luteis, ligu- lis 10-12 oblongis (subtus li'vidis ?) ; paleis receptaculi cuspidato- acuminatis ; acbeniis (immaturis) oblongis glaberrimis apice truncatis calvis. — Mountain forest near Chiapas, S. Mexico, Ghiesbreght, no. 568, of recent distribution; very scantily collected. Branches slender, glandular-scabrous and beset with spreading villous or hirsute hairs. Leaves one or two inches long, the pubescence appressed, that of the lower surface especially soft and satniy. Involucre half an inch high. Rays barely half an inch long. Mature akenes not seen ; the imma- ture ones flat, truncate at summit, not at all emarginate or bidentate. Coreopsis Linn. In the Genera Plantarum this genus is probably extended too far when made to comprise groups of species with fertile rays. At least in the Flora of California I am constrained to rein- state two genera which are peculiar to that region, and in which no true Coreopsis occurs, although, indeed, the genus does cross the Rocky Mountains and reach the Pacific in a single species farther north. As to the African section Prestinaria, it might be associated with, or form a part of Diodonta. Epilepis Benth., the rays of which are said in the Genera Plantarum to be fertile, but are more correctly described in Plantse Hartwegianre as neutral, and those opposite-leaved South American species which I once associated with Agarista, I should still regard as belonging to Coreopsis, while I would re-establish the California genus, under the name of PUGIOPAPPUS Gray. Capitulum multiflorum, heterogamum ; floribus radii 7-10 fere semper fosmineis, disci hermaphroditis. Involucrum duplex Coreopsidis. Receptaculum planum, paleis scariosis cum fructu deciduis onustum. Ligulae lata?, truncate, plurinervias. Corolla? disci tubo tenui versus apicem annulato, limbo ampliato 5-lobo. Styli fl. radii breves, nunc intra tubum ligulas retracti ; fl. disci ramis cono brevissimo superatis. Achenia plano-obcompressa, ovalia vel oblonga, radii glaberrima, mar- ginata vel alata, calva ; disci villosa vel ciliata, cum palea receptaculi adpressa basi cohrerente decidua, pappi aristis paleolisve longis trique- tris pugioniformibus superatis. — Herbse annua?, California?, glaber- rima, foliis alternis 1 - 2-pinnatipartitis, lobis linearibus, capitulis solitariis longe p^lunculatis, floribus aureis. — Agarista DC. Prodr. 5, p. 569 ; Torr. & Gray, Fl. 2, p. 337, non Don. Pugiopappus Gray in Bot. Whippl. p. 48, & Proc. Amer. Acad. 6, p. 545. 660 PROCEEDINGS OF THE AMERICAN ACADEMY It was long ago remarked, in the Flora of North America, that ovaries of the ray in Agarista calliopsidea DC. are ovuliferous. I have lately seen, in a cultivated plant, that they are equally if not more fertile than those of the disk. The specimens under cultivation showed well-formed styles to the ray-flowers ; but these I find are present in all the indigenous specimens I possess, although commonly short or even included in the tube. Agarista DC. -and Pugiopappus are therefore congeneric. As Don's Agarista in Ericacea is earlier, and is to be restored, the present reinstated genus naturally takes the name of Pugiopappus. The species are : — Pugiopappus calliopsidea. Caule 1 - 2-pedali inferne folioso ; capitulo majore ; involucri exterioris squamis ovatis basi coalitis ; ligulis cuneato-obovatis (semipollicaribus ad pollicarem) ; disci corollis tubo piloso-annulato ; achenis radii latis ala tenui cinctis, disci margine intusque longe mollissime villosis. — Agarista calliopsidea DC. Pugiopappus Breweri. Minor ; foliorum lobis angustissime line- aribus ; involucri exterioris squamis linearibus ; ligulis oblongo-spathu- latis (semipollicaribus) ; annulo corollas disci obscuro imberbi ; ache- niis radii prsecedentis, disci secus margines costamque paginal in- terioris tantum longe villosis ; pappi aristis validioribns achenio dimidio brevioribus. — This is the plant, collected by Professor Brewer (no. 241) "on dry hills at San Buenaventura," below Santa Barbara, which in Proc. Am. Acad. 5, p. 545, I wrongly referred to P. Bige- lovii. It is nearer the preceding. Pugiopappus Bigelovii Gray, 1. c. Humilis ; foliis subradicali- bus carnosulis, segmentis paucis angustissime linearibus ; capitulo in pedunculo scapiformi parvulo ; involucri exterioris squamis lato-line- aribus ; ligulis quadrato-oblongis ; annulo corollas disci imberbi ; acheniis radii oblongis ala crassiuscula marginatis, disci (ut videtur plerumque sterilibus) tenuiter ciliatis. — The style in the disk-flowers is articulated above the base, and the thickish basal portion is less deciduous, in all three species. In those, also, the disk-achenia, or some of the central ones, are disposed to be infertile. Leptosyne DC, with its three genuine species and Tuckermannia of Nuttall, which I long ago referred to it, has perhaps still greater claim to be regarded as a good genus. L. Douglasii DC, L. Still- manii Gray, and L. Newherryi Gray, differ chiefly in some details of flowers and fruit ; in the latter the cup or little border which answers to pappus is almost obsolete. There is no trace of it in the remark- OF ARTS AND SCIENCES: MAY 13, 1873. GG1 able section TucJcermannia, L. maritimia Gray, which is reinforced by a succulent woody-stemmed species of the Californian Islands, L. gigantea Kellogg. This, however, has not yet flowered here in cul- tivation. It may be only an insular variety of the other. Although not here in its proper place, I close the present portion of this article with the characters of the following interesting genus : — MESONEURIS, Nov. Gen. Senecionidearum. Capitulum homogamum, multiflorum, floribus hermaphroditis tubu- losis. Involucrum campanulatum, bracteolis lineari-filiformibus paucis laxis stipatum ; squamis 12-15 biseriatis sequalibus oblongo-lanceo- latis, medio concavis subherbaceis 3-5 nerviis, basiincrassatis(carnosis?) marginibus pi. m. scariosis. ' Receptaculum convexiusculum, epaleatum, fimbrillis subulatis inter flores. Corollae hypocraterimorphae ; limbo usque ad tubum angustum requilongum 5-partitum, lobis linear ibus marginibus aestivatione induplicatis, medio nervo valido percursis, nervis intramarginalibus tenuissimis. Stamina fauci inserta : antherae lineares, basi breviter bidentatae. Styli rami crassiusculi subcomplanati, extus puberi nervo medio valido percursi, apice subtruncato magis hir- telli. Achenia cylindracea, enervia, areola epigyna (modo Seneciomim) annulo magno incrassato circumdata. Pappus e setis rigidulis scabris uniserialibus corolla? tubum baud superantibus. — Herba austro-Mexi- cana, foliis alternis bipinnatifidis. petiolo basi spathaceo-auriculato cau- lem amplectente, capitulis cymosis, floribus albis. M. bipinnatifida. — Mexico, in the cold region of the mountains, province of Chiapas, Ghiesbreght, no. 805 of new collection. — somewhat robust perennial, two or three feet high, and probably often taller, with some lax and deciduous pubescence, woolly-tufted at the base of the stem. Lower leaves a foot long, including the petiole ; the foliaceous sheathing auricle an inch or two in length ; uppermost leaves reduced to these spathaceous sheaths. Heads half an inch long. Lobes of the corolla 2 lines long ; the tube 5-nerved below, the nerves as usual running to the sinuses, their continuation within the margin of the lobes very slender : the median nerve of the lobes more promi- nent than in the other and rare cases in which it is manifest at all, but gradually vanishing after reaching the tube. The genus is a remarkable one on several accounts (and doubtless Senecioneous although the corolla recalls Hymenothrix) : in deriving the name from the nervation, I have taken the less-used diminutive vevpls, so as not to come too near Mezoneuron. INDEX TO VOL. VIII Abies Douglasii, 402. grandis, 402. Mertensiana, 402. Pattoniana, 402. Abutilon Palmeri, 289. Acarnptopappus, 634. sphasrocephalus, 634. Acanthogonum, 197. corrugatum, 197. rigidum, 198. • Acanthomintha, 368. Acer macrophyllum, 379. Achaetogeron, 651. Achillea Millefolium, 391. Achlys triphylla, 376. Actaaa spicata, 375. Adenocaulon, 653. bicolor, 388. Adenostyles Nardosmia, 631. Adiantum pedatum, 411. Agarista caHiopsidea, 660. Agrostis aequivalvis, 408. alba, 408. canina, 408. exarata, 408. pallens, 408. scabra, 408. Aira danthonioides, 410. latifolia, 410. coaspitosa, 410. Alarconia helenioides, 654. angustifolia, 655. Alchemilla occidentalis, 381. Alisma Plantago, 403. Allium acuminatum, 405. serratum, 405. Allotropa virgata, 394. Alnus rubra, 402. Alopecurus pratensis, 408. Amarantus retroflexus, 398. Ambrosia artemisirefolia, 653. Amelanchier Canadensis, 382. Ammodia, 390. Amphiacbyris dracunculoides, 633. Fremonlii, 633. Amphipappus Fremontii, 633. Amsinckia lycopsoides, 397. Anacharis Canadensis, 403. Anaphalis margaritacea, 652. Ancistrocarphus filagineus, 652. Anemone deltoidea, J^2. Angelica genuflexa, 385. Animal electricity, 344. Antennaria dioica, 392. margaritacea, 392. Apargidium boreale, 392. Aphantochseta exilis, 633. Aplopappus, 634. Bloomeri, 636. cuneatus, 635. discoideus, 638. Hallii, 389. hypoleucus, 638. lanceolatus, 389. Macronema, 641. marginatus, 635. Menziesii, 638. pinifolius, 636. resinosus, 636. sphaBrocephalus, 634. Apocynum androsamiifolium, 398. Appropriations, 1, 2, 6, 109, 110, 221, 223, 243, 310, 332. Aquilegia chrysantha, 621. formosa, 375. leptocera, 621. INDEX. 663 Arabis hirsuta, 377. Arbutus Menziesii, 393. Arceutbobium abietinum, 401. Arctostaphylos pungens, 393. tomentosa, 393. Uva-ursi, 393. Arenaria macrophylla, 378. tenella, 378. Argyrothamnia adenophora, 294. Arnica araplexicaulis, 392. latifolia, 392. Arrhenatherum avenaceuin, 411. Artemisia Canadensis, 391. discolor, 391. dracunculoides, 391. Ludoviciana, 391. Asarum Canadense, 398. Asclepias fascicularis, 398. speciosa, 398. Aspidium Filix-raas, 411. munitum, 411. spinulosum, 411. Asplenium Filix-foemina, 411. nigricans, 619. Trichomanes, 411. Assessment "increased, 310. Aster, 647. alpigenus, 389. arenarioides, 647. carnosus, 646. Douglasii, 388. Engelmannii, 388.' flexuosus, 647. Hallii, 388. linifolius, 647. marginatus, 635. . paucifloms, 647. radulinus, 388. salsuginosus, 389. Sayi, 388. subulata, 647. tenuifolius, 647. Astigmatism, 310. Astragalus ai'rectus, 289. Lemmoni, 626. Atriplex littoralis, 398. truncata, 398. Auditing Committee, 442. Aurora Borealis, 55. Australian Aborigines, 429. Australian Kinsbip, 412. Azolla Caroliniana, 412. B. Baccharis Douglasii, 651. fuliginea, 638. pilularis, 390. ramulosa, 646. Texan a, 646. veneta, 638. Bahia lanata, 390. Balanoglossus, 486. Balsamorhiza Careyana, 654. deltoidea, 390. Barometric Observations, 330,516. Beckmannia erucaBformis, 411. Berberis Aquifolium, 375. nervosa, 375. Betula pumila, 402. Bezanilla Chilensis, 652. Bidens cernua, 391. Bigelovia, 638. arborescens, 640. Bigelovii, 642. Bolanderi, 641. ceruminosa, 643. Cooperi, 640. coronopifolia, 638. depressa, 643. diffusa, 640. Douglasii, 645. dracunculoides, 644. Drummondii, 639. fuliginea, 638. graveolens, 644. Howardii, 641. hypoleuca, 638. lanceolata, 639. Menziesii, 638. Missouriensis, 644. nudata, 646. paniculata, 644. Parryi, 642. plurifiora, 639. pulchella, 643. teretifolia, 644. veneta, 638. virgata, 646. 664 INDEX. Bigelovia viscidiflora, 645. Wrightii, 639. Blepharipappus scaber, 390. Boisduvalia, 571, 600. Boltonia, 648. Boykiuia occidentalis, 383. Brachyactis, 647. ciliata, 647. frondosa, 647. humilis, 646. menthodora, 648. robusta, 648. Brasenia peltata, 376. Brewerina, 620. suffrutescens, 620. Brickellia, 632. atractyloides, 290. Brizopyrum spicatum, 410. Brodirea grandiflora, 404. multiflora, 404. Bromus carinatus, 410. racemosus, 410. subulatus, 410. C. Cacalia Nardosmia, 632. Calais laciniata, 392. Calamagrostis Aleutica, 408. Calamintba, 368. canescens, 295. Calandrinia Nevadensis, 623. pygmasa, 623. Calendar, Republican, 348. Calliastrum, 388. Callitricbe auturanalis, 401. Bolanderi, 401. marginata, 401. verna, 401. Calochortus elegans, 404. Calosphace, 369. Caltha leptosepala, 375. Camassia esculenta, 405. Cambridge Observatory, 439. Campanula Scouleri, 393. Cantua glomeriflora, 260. lonjjiflora, 261. Caprifolium ciliosa, 627. hispidulum, 627. Caprifolium occidentalis, 627. Carbonic Acid, 311. Cardamine angulata, 376. cordifolia, 376. hirsuta, 377. oligosperma, 376. Carex albolutescens, 407. amplifolia, 407. atbrostachya, 407. Bolanderi, 407. borealis, 407. Breweri, 406. caispitosa, 407. decidua, 407. Douglasii, 407. echinata, 407. elata, 407. ferruginea, 407. festiva, 407. frigida, 407. Hookeriana, 406. Kunzei, 406. lagopodioides, 407. lanuginosa, 407. laxiflora, 407. leporina, 407. Mertensii, 407. nigricans, 406. Oregonensis, 407. Pennsylvanica, 407. polytrichoides, 406. Rossii, 407. scoparia, 407. Sitchensis, 407. stipata, 406. tenella, 407. vesicaria, 407. vitilis, 407. vulgaris, 407. Carphephorus, 632. atriplicifolius, 632. junceus, 632. Carum Gairdneri, 385. Castanopsis chrysophylla, 401. Castilleia pallida, 396. parviflora, 396. Ceanotbus Oreganus, 379. velutinus, 379. Cedronella Mexicana, 370. micrantba, 369. INDEX. 665 Cedronella pallida, 370. Celtis reticulata, 401. Census, Memorial on, 140. Centrostegia, 191. leptoceras, 192. Tlmrberi, 192. Centunculus minimus, 394. Cerastium vulgatum, 378. Cerasus, 381. Chimaphila Menziesii, 394. umbellata, 394. China, Geological Investigations in, 111. Chloral Hydrate, 214, 299. Chorizanthe, 192. brevicornu, 196. Californica, 197. commissuralis, 196. corrugata, 198. diffusa, 193. discolor, 195. Douglasii, 193. fimbriata, 195. frankenioides, 196. glabrescens, 196. laciniata, 194. Mamei, 196. membranacea, 193. nudicaule, 195. paniculata, 196. peduncularis, 196. perfoliata, 197. polygonoides, 197. procumbens, 195. pungens, 194. ramosissima, 196. rigida, 198. staticoides, 195. stellulata, 193. uncinata, 195. uniaristata, 195. vaginata, 196. virgata, 196. Watsoni, 199. Chrysocoma dracunculoides, 644. graveolens, 644. nauseosa, 644. Chrysopsis Oregana, 390. villosa, 390. Chrysothamnus, 637. VOL. VIII. 84 Chrysothamnus depressus, 643. dracunculoides, 644. lanceolatus, 639. pumilus, 645. speciosus, 644. viscidiflorus, 645. Cilia, vibratory, 140. Cimicifuga elata, 375. Cinna arundinacea, 408. Circaea pacifica, 384. Cirsium edule, 392. undulatum, 392. Claytonia Chamissonis, 378. linearis, 378. parvifolia, 378. perfoliata, 378. Sibirica, 378. Clematis ligusticifolia, 372. Cleome lutea, 377. Clintonia uniflora, 404. Coldenia Palmeri, 292. Coliseum, 439. Collinsia grandiflora, 394. Collomia, 258. Cavanillesiana, 260. coccinea, 259. gilioides, 260. gracilis, 259, 397. grandiflora, 259, 397. heterophylla, 260, 397. leptalea, 261. linearis, 259, 397. longiflora, 261. micrantha, 259. nudicaulis, 258. tenella, 259. Thurberi, 261. tinctoria, 259. Comandra umbellata, 401. Committees, 3, 4, 104, 109, 139, 214, 222, 242, 243, 348, 486. Communications from Messrs. Agassiz, A., 439,. 486. Agassiz, L., 4. Bliss, 243. Bowditch, H. I., 201. Bowditch, H. P., 508. Burden, 214. . Cooke, 59, 310, 337, 503. 666 INDEX. Communications from Messrs. Clark, 299, 201, 214. Crafts, 501, 507. Dall, 297. DuChaillu, 105. Eaton, 618. Ellis, G. E., 141. Eustis, 439. Fison, 412. Gibbs, 501. Gould, B. A., 499. Gray, A., 145, 243, 365, 620. Hill, 201, 299. Horsford, 302, 507, 510. Hunt, 300, 485, 486. Jackson, J. B. S., 501. Jarvi3, 139. Jobnson, 488. Lovering, 53, 55, 145, 215, 348, 502. Maack, 442. Morgan, 412. Oliver, 59. Pearson, 311. Peirce, B., 106, 139, 310, 333, 412. Peirce, C. S., 412. Peirce, J. M., 488. Pickering, 106,309, 333, 507. Rice, 488. Richthofen, 111. Ritcbie, 106. Rogers, W. A., 439, 485. Roumiantzoff, 303. Seaver, 506. Sbaler, 299, 307, 309, 335, 343, 442. Sbarples, 486, 502. Sophocles, 242, 297. Storer, F. H., 59, 311. Storer, H. R., 138. Trowbridge, 344. Watson, 517, 549, 573. Whitney, 111,302,330. Winlock, 299, 311, 328, 330. Wright, 332. Wyman, J., 140. Oonradina, 294. canescens, 295. Continents, physical conditions of, 343. Coptis asplenifolia, 375. Corallorhiza Mertensiana, 403. multiflora, 403. striata, 403. Coreopsis, 659. Coronas, 218. Cornus Nuttallii, 387. sericea, 387. Suecica, 387. Corylus rostrata, 401. Cotula australis, 391. Council's Reports, 7, 121, 223, 316,442. Crantzia lineata, 385. Crinitaria humilis, 646. viscidiflora, 645. Cryptogramme acrostichoides, 411. Cunila Mariana, 365. Cynapium, 385. Cynomarathrum saxatile, 287. Cyperus acuminatus, 406. inflexus, 406. Cypripedium passerinum, 403. Cystopteris fragilis, 411. D. Dactylophyllum, 263. Dalea Hallii, 625. trifoliolata, 625. Dana, Francis, death of, 484. Danthonia Californica, 410. spicata, 410. Delphinium Menziesii, 375. trolliifolium, 375. ■ Desmodium Blinoense, 289. rigidum, 289. Diapensia, 246. Himalaica, 246. Lapponica, 246. Diapensiaceas, 243, 245. Dicentra formosa, 376. Differentials of Functions, 488. Diplarche, 244. Dirca occidentalis, 631. palustris, 631. Dividing Engine, 343. INDEX. 667 Dodecatheon Meadia, 394. Dolichogyne genistoides, 636. Downingia elegans, 393. Dracocephalura intermedium, 371, Dulichium spathaceum, 406. E. Echinocystis fabacea, 384. Echinopanax horrida, 387. Echinosphace, 368. Eclipse, 297, 311. Ehrenberg, Anniversary of Doc- torate, 53. Testimonial, 104. Elaphocera, 273. Elatine Americana, 377. Electricity, 53. for aneurism, 487. Animal, 344, 516. Electromotive action of fluids, 364. Eleocharis acicularis, 406. Elymus condensatus, 410. Sibiricus, 410. Sitanion, 410. Encelia, 656. albescens, 657. argophylla, 657. Californica, 656. calva, 658. conspersa, 656. eriocephala, 657. frutescens, 657. Ghiesbreghtii, 658. microcephala, 657. nivea, 658. nudicaulis, 656. scaposa, 656. Epilepis, 659. Epilobium alpinum, 384. angustifolium, 383. minutum, 384. paniculatum, 384. tetragonum, 383. Equinoxes, Precession of, 333. Equisetum lsevigatum, 412. limosum, 412. Eragrostis reptans, 408. Eremocarpus setigerus, 401. Ericameria diffusa, 640. Erigeron, 648. argentatum, 649. armerirefoliutn, 648. Bellidiastrum, 389, 648. caespitosura, 649, 650. canum, 650. cinereum, 648. decumbens, 389. delpbinifolium, 650. divergens, 648. Ervendbergii, 650. filifolium, 389. flagellare, 649. glabratum, 648. glaucum, 389. lonchophyllum, 648. Nevadense, 649. racemosum, 648. speciosum, 389. stenophyllum, 650. strigosum, 389. ursinum, 649. Eriogonese, 145. Eriogonum acaule, 163. alatum, 154. androsaceum, 162. angulosum, 187. . annuum, 173. atrorubens, 154. brachypodum, 180. brevicaule, 172. casspitosuni, 157. cernuum, 182. ciliatum, 186. cinereum, 168. compositum, 158, 398. confertiflorum, 171. corymbosum, 170. dasyanthemum, 177. decumbens, 174. deflexum, 181. dichotomum, 175, 399 divaricatum, 188. Douglasii, 157. elatum, 168, 399. effusum, 172. elongatum, 176. ericosfolium, 170. fasciculatum, 169. 668 INDEX. Eriogonum Fendlerianum, 171. flavum, 156. glandulosum, 180. Gordoni, 185. gracile, 178. Greggii, 187. Heerrnanni, 179. hemipterum, 154. heracleoides, 159. hieracifoliurn, 154. incanum, 161. inflatuoi, 185. intricatum, 180. Jamesii, 155. Kelloggii, 293. Kingii, 165. lachnogynum, 163. latifoliura, 166. leptocladon, 172. leptophyllum, 171. Lobbii, 162. lonchophyllum, 173. longifolium, 155. marifolium, 161. microthecum, 170. multiceps, 166. multiflorum, 174. niveum, 174. nudum, 167, 398. nutans, 181. oblongifolium, 167. ovalifoliura, 164. parvifolium, 169. pauciflorum, 166. pharnaceoides, 189. Plumatella, 179. polifolium, 169. polyanthum, 158. polycladon, 178. proliferum, 164. pusillum, 184. pyrolcefolium, 162. racemosum, 175. reniforme, 184. roseum, 177. rosmarinifolium, 169. rotundifoliura, 183. salsuginosurn, 188. spergulinum, 189. sphasrocephaluru, 157. Eriogonum strictum, 175. tenellum, 186. Thomasii, 184. Thurberi, 183. thymoides, 156. tomentosum, 155. Torreyanum, 158. trichopodium, 185. truncatum, 173. umbellatum, 160, 398. undulatum, 155. villiflorum, 630. vimineum, 177, 399. virgatum, 177. Watsoni, 182. Wrightii, 176. Eritrichiura Californicum, 397. Chorisianum, 397. fulvum, 397. muricatum, 397. plebeium, 397. Erodium cicutarium, 378. Eryngium petiolatum, 385. Erysimum asperum, 377. Erythraea Nuttallii, 398. Eschscholtzia Californica, 376. Ethnology of Indian Tribes, 243. Euphorbia glyptosperma, 401. serpyllifolia, 401. Evax, 651. Heldrichii, 651. perpusilla, 651. Expert Testimony, 516. F. Fellows deceased : — William Allen, 108, 123. William Chauvenet, 324. Elbridge J. Cutler, 317. Moses Ashley Curtis, 471. Samuel Luther Dana, 26. Jeremiah Day, 18. Chester Dewey, 25. Charles Folsom, 485. Nathaniel Langdon Frothing- ham, 226. James Hadley, 486. John Edwards Holbrook, 473. INDEX. 669 Fellows deceased : — Charles Jackson, Jr., 480. James Jackson, 8. Charles C. Jewett, 14. John Pendleton Kennedy,323. Levi Lincoln, 7, 122. Daniel Lord, 22. Charles Greeley Lorin^, 9. Dennis Hart Mahan, 474. Horace Mann, 103, 129. George G. Meade, 485. William Mitchell, 108, 131. Samuel F. B. Morse, 478. George Rapall Noyes, 7, 127. Francis Peabody, 24. Octavius Pickering, 103, 125. Thomas Sherwin, 224. William Smyth, 29. Theodore Strong, 228. George Ticknor, 319. • Jonathan Mason Warren, 15. James Davenport Whelpley, 482. Fellows elected : — Charles Francis Adams, 308, 317. J. A.^Allen, 333, 443. Robert Amory, 327. James B. Angell, 2, 122. Nathaniel E. Atwood, 103, 121. G. R. Baldwin, 335, 442. James M. Barnard, 139, 224. Horace Binney, 52. Ferdinand Bocher, 308, 317. C. O. Boutelle, 486. H. P. Bowditch, 440. William T. Brigham, 223. Charles E. Brown-Sequard, 52. George J. Brush, 308, 317. Henry J. Clark, 221, 317. W. J. Clark, 2, 121. Algernon Coolidge, 223. James M. Crafts, 52. E. J. Cutler, 302, 316. H. G. Denny, 332, 442. George Derby, 221,316. Charles A. Dunbar, 348, 443. C. C. Everett, 308, 317. Fellows elected : — William Everett, 308, 317. N. St. J. Green, 486. Hermann Hagen, 103, 122. John L. Hayes, 2, 122. Rowland G. Hazard, 52. Nathaniel Holmes, 221, 316. R. W. Hooper, 335. H. H. Hunnewell, 440. Alpheus Hyatt, 223. C. L. Jackson, 486. Samuel W. Johnson, 327, 443. C. C. Langdell, 302, 316. Henry Carey Lea, 302, 317. Leo Lesquereux, 443. Daniel Lord, 52. Horace Mann, 103, 122. J. M. Merrick, 486. Lewis H. Morgan, 2, 122. Edward S. Morse, 224. Simon Newcomb, 221, 317. W. R. Nichols, 486. Stephen T. Olney, 308, 317. Alpheus A. Packard, Jr., 103, 122. Henry W. Paine, 308, 317 John K. Paine, 333, 443. Thomas W. Parsons, 139, 224. Charles C. Perkins, 221, 316. J. B. Perry, 335, 442. William H. Pettee, 333, 443. Edward C. Pickering, 52. Francis Pourtales, 327, 442. Raphael Pumpelly, 221, 316. Edmund Quincy, 103. Alfred P. Rockwell, 223. William T. Roepper, 440. John Rodgers, 52. William A. Rogers, 348, 443. Truman H. Safford, 221,317. Samuel H. Scudder, 2, 59, 122. Edwin P. Seaver, 333, 443. Nathaniel S. Shaler, 139, 224. S. P. Sharpies, 335,. 442. Jeremiah Smith, 308, 317. J. Lawrence Smith, 52. John Trowbridge, 333, 442. Andrew D. White, 2, 122. 670 INDEX. Fellows elected : — Henry L. Whiting, 139, 224. John G. Whittier, 308, 317. Charles A. Young, 327, 443. E. J. Young, 302, 316. Fenzlia, 264. Ferula dissecta, 385. Festuca microstachys, 409. Myurus, 409. occidentalis, 410. ovina, 410. scabrella, 410. Filago Arizonica, 652. Fimbristylis capillaris, 406. Finance Committee, 328, 441. Flourensia, 656. cernua, 656. corymbosa, 656. laurifolia, 656. thurifera, 656. Foreign Honorary Members de- ceased : — Charles Babbage, 455. Immanuel Bekker, 446. August Boeckh, 49. Francis Bopp, 47. David Brewster, 38. Michael Faraday, 31. Thomas Graham, 230. George Grote, 443. John F. W. Herschel, 461. Sir William Lawrence, 43. Henry Longueville Mansel, 453. Henry Hart Milman, 137. Karl Joseph Anton Mitter- maier, 51. Roderick Impey Murchison, 448. Frederic Overbeck, 239. Pierre Francois Olive Rayer, 44. Frederic Adolf Trendelen- burg, 451. Charles Frederick Philip von Martius, 134. Hus;o von Mohl, 459. Foreign Honorary Members elect- ed : — Alexander Braun, 221, 317. Foreign Honorary Members elect- ed:— Bluntschli, 2, 59, 122. M. Chevreul, 53. J. H. W. Dollen, 440. H. L. F. Helmholtz, 103, 122. Wilhelm Hofmeister, 506. Benjamin Jowett, 440. Kaulbach, 302, 317. G. Kirchhoff, 302, 317. Lassen, 2. Mansel, 3, 59. James Martineau, 440. Charles Merivale, 221, 317. Theodor Mommsen, 440. Karl F. Rammelsburg, 440. Ritschl, 2, 122. Edward Sabine, 53. William Thompson, 440. Charles Wheatstone, 103,122. Fossil remains of man, 302, 501. Fragaria vesca, 381. Frankenia Jamesii, 622. Franseria bipinnatifida, 390. Fraxinus Oregana, 398. Fresnel's formula, 331. G. Gaillardia aristata, 390. Galacinea?, 246. Galax, 245, 247. Galium aparine, 387. boreale, 388. Littellii, 388. triflorum, 387. Gaultheria Myrsinites, 393. Shallon, 393. Gaura parviflora, 384. Gayophytum Nuttallii, 384. Gentiana affinis, 398. Geology of China, 111. Geranium Carolinianum, 378. incisum, 378. Geum macrophyllum, 381. Ghiesbreghtia, 629. grandiflora, 630. Gift from Mr. Treadwell, 327. INDEX. 67 L Gift from M. Dumas, 484. Gilia, 261. acbilletefolia, 277. aggregata, 275. androsacea, 265. atractyloides, 271. aurea, 264. Bigelovii, 265. Bolanderi, 263. Breweri, 269. Californica, 268. campanulata, 279. capitata, 277. ciliata, 266. congesta, 274. coronopifolia, 275. cotulasfolia, 269. crassifolia, 278. dactylophyllum, 263. demissa, 263. densiflora, 265. densifolia, 272. dianthoides, 264. dichotoma, 265. divaricata, 260, 270. filicaulis, 270. . filifolia, 272. filipes, 263. floccosa, 272. floribunda, 267. fetida, 279. Gayana, 279. glomeriflora, 260. gossypifera, 274. Gunnisoni, 273. iberidifolia, 274. incisa, 279. inconspicua, 278. intertexta, 269, 398. laciniata, 278. lanata, 273. leptomeria, 278. leucocephala, 270. liniflora, 263. lute'scens, 272. micrantha, 266. micromeria, 279. minima, 269. minutiflora, 277. multicaulis, 277. Gilia multiflora, 260. nudicaulis, 266. Nuttallii, 267. pinnatifida, 276. polycladon, 274. pumila, 274. pungens, 268. pusilla, 263. rigidula, 280. setosissima, 271. spicata, 273. squarrosa, 269, 397. stenothyrsa, 276. subnuda, 276. tenella, 266, 397. tenerrima, 277. tenuiflora, 278. tricolor, 278. virgata, 272. viscidula, 271. Watsoni, 267. Wrigbtii, 273. Giliandra, 276. Gitbopsis specularioides, 393. Glyceria fluitans, 408. nervata, 408. pauciflora, 408. Glycosma ambigunm, 386. Glycyrrbiza lepidota, 380. Gnaphalium leucocepbalum, 391, 653. luteo-album, 391. margaritaceum, 653. microcephalum, 391. palustre, 391. purpureum, 391. Godetia, 571, 596. Goodyera Menziesii, 403. Gratiola ebracteata, 395. Greek Dictionary of Sophocles, 242, 297. Grindelia discoidea, 390. hirsutula, 390. humilis, 390. integrifolia, 390. Gulf Stream, 4, 5. Gutierrezia, 632. gymnospermoides, 632. Wrigbtii, 632. Gymnogramme triangularis, 411. 672 INDEX. H. Habenaria dilatata, 403. elegans, 403. foetida, 403. hyperborea, 403. Halos, theory of, 145, 215. Harrison Boiler, 337. Hawaii, craters of, 333, 507. Hedeoma, 3G6. acinoides, 366. ciliata, 367. dentata, 366. Drummondii, 367. graveolens, 367. hispida, 366. incana, 296. nana, 366. oblongifolia, 367. piperita, 366. plicata, 366, 367. pulegioides, 366. Helenium autumnale, 390. Helianthus tephrodes, 658. Heliotype process, 516. Hesperevax, 651. Heterocodon rariflorum, 393. Heterosphace, 368. Heuchera cylindrica, 383. micrantha, 383. Hieracium albiflorum, 393. Scouleri, 392. triste, 392. umbellatum, 393. Hierochloe macrophylla, 411. Hofmeisteria, 631. Honorary Members. See Foreign Honorary Members. Hordeum pratense, 410. Horkelia congesta, 381. Hosackia angustifolia, 626. tricolor, 380, 626. crassifolia, 380, 626. decumbens, 380. gracilis, 626. incana, 626. lathyroides, 626. oblongifolia, 626. parviflora, 380. Purshiana, 380. Hosackia stipulata, 626. Torreyi, 625. Hugelia, 271. Hydraulic mining, 302. Hydric sulphide, 503. Hypericum anagalloides, 377. Scouleri, 377. I. Ice, Columnar Structure of, 507. Illumination of spider-lines, 517. Ilysanthes gratioloides, 396. Injection of Lymph-Spaces, 508. Ipomopsis, 275. Iris tenax, 403. Iron Ore, Volumetric Analysis of, 507. Isoetes Nuttallii, 411. Isopyrum Hallii, 374. Ivesia Muirii, 621. J. Juncus acuminatum, 406. bufonius, 405. Drummondii, 405. effusus, 405. falcatus, 405. longistylis, 405. Mertensianus, 406. oxymeris, 406. patens, 405. tenuis, 405. triformis, 405. xiphioides, 406. Juniperus communis, 402. Jupiter, 299. K. Kinship, Australian, 412. Kosteletzkya digitata, 289. Labiatoe, 365. Lagophylla ramosissima, 391. INDEX. 673 Lastarrirea Chilensis, 199, 293. Lasthenia glaberrima, 391. Lathy rus polyphyllus, 381. Torreyi, 380. venosus, 381. Lead Salt in Sherry Wine, 59. Sulphate of, in alcoholic Saline Solutions, 59. Ledum glandulosum, 394. Legacy of D. Treadwell, 439. Lemna minor, 403. Lepidium Menziesii, 377. Leptodactylon, 267, 268. Leptosiphon, 265, 266. Leptosyne, 660. Douglasii, 660. gigantea, 661. maritima, 661. Newberryi, 660. Stillmanii, 660. Leptotaenia, 385. Lessingia, 634. Germanorum, 634. leptoclada, 634. Library Committee, 2, 109, 220, 243, 329, 442. Library, donations to, 65, 102. Ligusticum apiifolium, 385. Lilium Canadense, 404. Linanthus, 264. Linnaea borealis, 387. Linosyris albicaulis, 644. arborescens, 640. Bigelovii, 642. - Bolanderi, 641. carnosa, 646. ceruminosa, 643. coronopifolia, 638. dentata, 638. depressa, 643. Drummondii, 639. graveolens, 644. heterophylla, 639. hirtella, 639. Howardii, 641. humilis, 646. lanceolata, 639. Mandonii, 638. Mexicana, 638. Parryi, 642. VOL. VIII. 85 Linosyris pluriflora, 639. pulchella, 643. ramulosa, 646. serrulata, 646.' Sonoriensis, 291, 640. squamata, 290, 646. teretifolia, 644. Texana, 646. viscidiflora, 389, 644, 645. Wrightii, 639. Linum adenophyllum, 624. Listera cordata, 403. Lolium perenne, 410. Lomaria Spicant, 411. Longitude of Cambridge, etc., 502. Lonicera, 627. Breweri, 629. caerulea, 628. Californica, 387, 628. ciliata, 628. ciliosa, 387, 627. conjugialis, 629. hispidula, 387, 627. interrupta, 628. involucrata, 387, 628. Ledebourii, 628. microphylla, 628. oblongifolia, 629. occidentalis, 627. subspicata, 628. Utahensis, 628. Lophochlama refracta, 409. Ludwigia palu'stris, 384. Lupinus bicolor, 379. holosericeus, 379. latifolius, 379. laxiflorus, 379. leucophyllus, 379. minimus, 379. ornatus, 379. parviflorus, 379. polyphyllus, 379. Revision of, 517. Index to species, 539. Luzula campestris, 406. comosa, 406. spadicea, 406. Lycium Palmeri, 292. Lycopus Americanus, 286. Arkansanus, 286. 674 INDEX. Lycopus Europreus, 286, 287. lucidus, 286. macrophyllus, 285. obtusifolius, 286. pumilus, 285. rubellus, 285. sessilifolius, 285. sinuatus, 286, 396. uniflorus, 285. Virginicus, 285, 396. vulgaris, 287. Lymph Spaces in Fascia?, 508. Lysichiton Kamstchatense, 403. M. Macbridea, 371. pulchella, 371. Machaeranthera canescens, 388. Macronema discoidea, 641. Macrorbynchus elatus, 392. heterophyllus, 392. laciniatus, 392. Lessingii, 392. Madia elegans, 391. filipes, 391. glomerata, 391. Nuttallii,391. raceraosa, 391. Mahonia, 375. Malacothrix crepoides, 393. Mars, 299. Marsilia ves^tita, 412. Medal, Rumford, award, 109, 329. presentation, 141, 337. Melampodium cupulatum, 291. Melica bulbosa, 409. Members, Foreign Honorary. See Foreign Honorary Members. Mentha Canadensis, 396. Mentzelia la^vicaulis, 384. Menziesia ferruginea, 393. Mertensia paniculata, 397. Mesoneuris, 661. bipinnatifida, 661. Mica, 59. Microgilia, 276. Microlotus, 380. Micromeria Douglasii, 396. Micropus, 651. Californicus, 391. globiferus, 652. Griffithii, 652. Milla hyacinthina, 404. Mimulus alsinoides, 395. floribundus, 395. luteus, 395. moschatus, 395. Mitella caulescens, 383. trifida, 383. Moehringia, 378. Mollugo verticiUata, 378. Monarda, 369. aristulata, 369. Bradburiana, 369. clinopodia, 369. didyma, 369. penicillata, 369. punctata, 369. Russelliana, 369. tenui-aristata, 369. Monotropa fimbriata, 629. Hypopitys, 629. Moon-temperature, 334. Mucronea, 196. Californica, 197. - Mulgedium leucophnsum, 393. pulchellura, 393. Myrica Californica, 401. Myriophyllum hippuroides, 383. N. Nama, 282. Berlandieri, 282. biflora, 282. Coulteri, 283. demissa, 283. dichotoma, 283. hirsuta, 285. hispida, 283. Jamaicensis, 282. latiflora, 284. Lobbii, 285. ■ longiflora, 285. origanifolia, 284. rupicola, 284. rupincola, 284. INDEX. 675 Nama Sandwicensis, 283. . sericea, 285. systyla, 285. undulata, 282. Nardophyllum genistoides, 636. Nasturtium curvisiliqua, 376. palustre, 376. Navarretia, 268, 270. heterophylla, 260. Nebula?, 516. Nemacaulis Nuttallii, 146. Nemophila parviflora, 397. Nicotiana multivalvis, 398. Nuphar polysepalurn, 376. Nuttallia cerasiformis, 381. O. Observatory of Cordoba, 499. CEnanthe sarmentosa, 385. Oenothera albicaulis, 384. densiflora, 384. glabella, 384. Lindleyi, 384. purpurea, 384. Revision of, 573. Index to species, 601. Officers elected, 3, 7, 104, 110, 121, 122, 328, 441. Optical Meteorology, 215. Oritropium, 389. Orthocarpus bracteosus, 396. hispidus, 396. pusillus, 396. Orthomeris, 388. Osmorrhiza nuda, 386. Oxalis corniculata, 378. Oregana, 378. Oxytheca, 190. dendroidea, 190. glandulosa, 181. perfoliata, 191. Watsoni, 191. P. Pachystima Canbyi, 623. Myrsinites, 378, 624. Palafoxia leucophylla, 291. Panicum dichotoruum, 411. scoparium, 411. Pedicularis Groenlandica, 396. racemosa, 396. PentachiEta, 633. aurea, 633. exilis, 633. gracilis, 633. Pentstemon diffusus, 395. Menziesii, 394. Palraeri, 291. Richardsonii, 395. triphyllus, 394. Perilomia, 370. Periodicity of the Aurora Borealis, 55. Perityle Acmella, 648. Peucedanum leiocarpum, 386. macrocarpum, 385. nudicaule, 385. triternatum, 385. utriculatum, 385. Phegopteris Dryopteris, 411. Pheliprea pinetorura, 394. Philadelphus. Lewisii, 383. Phleuni alpinum, 408. Phoradendron flavescens, 401. Phyllotaxis, 335. Phloganthea, 260. Phlox, 249. acuminata, 249. amoena, 251. andicola, 254. aristata, 251, 252? bifida, 251. bryoides, 253. caespitosa, 253. canescens, 253. carnea, 250. Carolina, 249. cordata, 249. corymbosa, 249. crassifolia, 251. divaricata, 251. Douglasii, 254, 397. Druramondii, 257. Floridana, 250. glaberrima, 250. glandulosa, 249. 676 INDEX. Phlox glomerata, 251. glutinosa, 251. Hentzii, 252. Hoodii, 253. humilis, 255. involucrata, 251. latifolia, 249. linearifolia, 255. longiflora, 249. longifolia, 249, 254, 255. macrantha, 257. maculata, 249. muscoides, 253. nana, 256. nitida, 250. nivalis, 252. occidentalis, 256. odorata, 249. ovata, 248. paniculata, 249. penduliflora, 249. pilosa, 250. pinnata, 260. procumbens, 252. puberula, 250. pyramidalis, 249: reflexa, 249. reptans, 251. revoluta, 250. Richardsonii, 253. Rcemeriana, 257. scabra, 249. setacea, 252. Sibirica, 254, 255. SickmaVini, 249. speciosa, 255, 256. Stellaria, 252. stolonifera, 251. suaveolens, 249. subulata, 252. suffruticosa, 250. teretiflora, 249. triflora, 250. triovulata, 257. undulata, 249. Walteri, 251. Photo-engraving, 488. Photograph of sun, 228. Phyllotaxis, 332. Physostegia imbricata, 371. Physostegia intermedia, 371. parviflora. 371. Virginiana, 371. Pimpinella Apiodora, 385. Pinus albicaulis, 402. contorta, 402. monticola, 402. ponderosa, 402. Pitysosperma, 375. Plagiobotrys canescens, 397. Planets, mean motions of, 336. Plantago. Patagonica, 394. Plectritis congesta, 388. Pleuricospora fimbriolata, 394, 629. Poa andina, 409. stenantha, 409. tenuifolia, 409. Polemonium, 280. casruleum, 281. capitatum, 281. confertum, 280. foliosissimum, 281. humile, 281. Mexicanum, 281. micranthum, 282. pulchellum, 281. reptans, 281. Richardsonii, 281. viscosum, 280. Poliomintha, 295. incana, 296, 365. longiflora, 296, 365. marifolia, 365. mollis, 365. Polygonum amphibium, 399. aviculare, 401. Bistorta, 399. coarctatum, 401. Convolvulus, 401. Davisiae, 399. Hartwrightii, 294. nodosum, 399. ramosissimum, 401. tenue, 401. Polypodium Ghiesbreghtii, 618. Scouleri, 411. Stenoloma, 618. vulgare, 411. Polypogon Monspeliensis, 408. INDEX. 677 Polyps, symmetry of, 335. Potamogeton Claytonii, 402. compressus, 402. natans, 402. pectinatus, 403. perfoliatus, 402. pusillus, 403. Robbinsii, 403. Potentilla diversifolia, 381. glandulosa, 381. gracilis, 381. Revision of, 549. Index to species, 563. Poterium annuum, 381. officinale, 381. Precession of the equinoxes, 333. Prehistoric man, 302, 303, 309. Prosartes Hookeri, 404. Prunus mollis, 381. Virginiana, 381. Psilocarphus, 652. globiferus, 652. Oreganus, 390, 652. tenellus, 652. Psoralea lanceolata, 380. physodes, 380. Pterigopappus, 653. compactus, 653. Pteris aquilina, 411. Pterostegia, 199. diphylla, 200. drymarioides, 200. •macroptera, 200. microphylla, 200. Publication Committee, 329, 440, 441. Pugiopappus, 659. Bigelovii, 660. Breweri, 660. calliopsidea, 660. Pyrola bracteata, 394. chlorantha, 394. minor, 394. picta, 394. Pyrrocoma Menziesii, 638. Pyrus rivularis, 382. sambucifolia, 382. Pyxidanthera, 244, 246. R. Ranunculus adoneus, 373. alismgefolius, 372. Cymbalaria, 372. fascicularis, 372. Flammula, 373. heterophyllus, 372 Nelsoni, 372. orthorhynchus, 373. Pseudo-Hirculus, 372. tenellus, 373. Reports, 7, 53, 104, 121, 140, 214, 220, 223, 300, 327, 329, 439, 440, 442, 485, 506. Republican Calendar, 349. Rhamnus Purshianus, 379. Rhododendron albirlorum, 394. Californicurn, 394. Rhus diversiloba, 379. Rhynchospora alba, 406. Ribes bracteosum, 383. divaricatum, 383. sanguineum, 383. setosum, 383. Richmond, Geology of, 307. Romanzovia Sitchensis, 397. Rosa blanda, 382. Californica, 382. fraxinifolia, 382. gymnocarpa, 382. Kamtschatica, 382. pisocarpa, 382. Rubus leucodermis, 381. macropetalus, «382. Nutkanus, 381. pedatus, 381. spectabilis, 381. Rudbeckia oecidentalis, 391. Rumex Acetosa, 399. salicifolius, 399. Rumford Committee, 1, 6, 104, 109, 121, 140, 220, 311, 328, 329, 332, 335, 337, 440, 441. Fund, 300. Medal, award, 141,337. Rumford's Works, 1, 109, 311, 327, 506. 678 INDEX. S. Sagina Linnaei, 378. Salix chlorophylla, 402. lanceolata, 402. longifolia, 402. sessilifolia, 402. Sitchensis, 402. Salizaria, 370. Salvia carduacea, 368. Columbariae, 368. Engelmanni, 368. Greggii, 369. Henryi, 368. Parryi, 369. platycheila, 292. Rcemeriana, 368. spicata, 369. Texana, 368. Salviastrum canescens, 368. Sambucus glauca, 387. pubens, 387. Sanicula bipinnatifida, 385. Menziesii, 385. Saxifraga coespitosa, 383 elegans, 383. heterantha, 383. integrifolia, 382. punctata, 383. Tolmiei, 383. Virginiensis, 382. Schizocodon, 244, 247. Scirpus lacustris, 406. pygmaius, 406. Scoliopus Bigelovii, 404. Scrophularia nodosa, 395. Scutellaria, 370. angustifblia, 370. antirrhinoides, 370, 396. Drummondii, 370. 'hederacea, 370. lateriflora, 397. nervosa, 370. parvula, 370, 630. resinosa, 370. tuberosa, 670. Wrigbtii, 370. • Sea-dredging, 5. Sedum spatbulifolium, 383. Selaginella rupestris, 412. Senecio exaltatus, 392. fastigiatus, 392. subnudus, 392. triangularis, 392. Sericocarpus Oregonensis, 388. rigidus, 388. Seseli Hallii, 287. Nuttallii, 287. Sherry Wine, Lead Salts and free Sulphuric Acid in, 59. Shortia, 244, 246. galacifolia, 247. ilicifolia, 247. Sidalcea malva3flora, 378. Siemen's process, 300. Silene Drummondii, 377. Menziesii, 378. Silphium gracile, 653. Simsia calva, 658. canescens, 657. frutescens, 657. scaposa, 657. Siphonella, 266, 267. Sisymbrium deflexum, 377. Sisyrinchium tinctorum, 403. Sium lineare, 386. Slaughter-house refuse, 502. Smilacina bifolia, 404. Solar eyepiece, 309. Solidago diffusa, 640. elongata, 389. gigantea, 389. occidentalis, 389. Virga-aurea, 389. Sophocles, omission in Dictionary of, 242, 297. Sorbus, 382. Soundings, 4. Sparganium simplex, 403. Spartina cynosuroides, 408. Spectroscope, 104, 106, 311, 330, 499. Spectrum, recording lines in, 299. Specularia perfoliata, 393. Spergularia media, 378. Spiranthes Romanzoviana, 403. Spiraea ariaefolia, 381. betulasfolia, 381. Douglasii, 381. Menziesii, 381. INDEX. 679 Spinea opulifolia, 381. Sporobolus cryptandrus, 408. Spraguea umbellata, 378. Stachyhedeoma, 367. Stachys Bigelovii, 371. ciliata, 397. coccinea, 371. . palustris, 397. Star-spectroscope for Cordoba, 499. Statutes, 242, 301, 502, 506, 515. Stellaria borealis, 378. crispa, 378. media, 378. nitens, 378. Stenanthium occidentale, 405. Stepbanomeria paniculata, 392. Stipa occidentalis, 408. Streptopus amplexifolius, 404. roseus, 404. Stylocline, 652. filaginea, 652. gnapbalioides, 652. Griffithii, 652. micropoides, 652. Sulphuric acid in Sherry Wine, 59. Sun-pbotograpbs, 223. Sun-spots, 516. Symphoricarpus racemosus, 387. Synthyris reniformis, 396. Systems of Consanguinity, 412. T. Tables for Republican Calendar, 352. Talinum pygmasum, 623. Taxus brevifolia, 402. Tellima grandiflora, 383. Testimony of experts, 516. Teucrium Cubense, 372. laciniatum, 372. Thalictrum heteropbyllum, 372. occidentale, 372. Thermo-electric currents, 516. Thermopsis fabacea, 379. montana, 379. Thuya gigantea, 402. Thysanocarpus curvipes, 377. Thysanocarpus pusillus, 377. Tiarella trifoliata, 383. unifoliata, 383. Tides, 303. Tillaea angustifolia, 383. Tithonia argophylla, 657. Thurberi, 655. tubjEformis, 656. Tofieldia glutinosa, 405. Tolmiea Menziesii, 383. Tonella collinsioides, 394. Trautvetteria grandis, 372. occidentalis, 372. palmata, 372. Treadwell, gift from, 327. legacy from, 439. Tribal Organization, 412. Trichostema Arizonicum, 371. dichotomum, 371. Trientalis Europaea, 394. Trifolium ciliolatum, 379. cyathiferum, 379. eriocephalum, 379. fimbriatum, 379. gracilentum, 379. Macraei, 379. microcephalum, 379. microdon, 379. pauciflorum, 379. Trillium ovatum, 404. sessile, 404. Tripolium angustum, 647. frondosum, 647. Trisetum cernuum, 410. subspicatum, 410. Triticum repehs, 410. U. Uranic salts, 501. Urinary calculus, 501. Utricularia vulgaris, 394. V. Vaccinium caespitosum, 393. myrtilloides, 393. ovatum, 393. 680 INDEX. Vaccinium parvifolium, 393. uliginosum, 393. Vancouveria hexandra, 375. Verbena bracteosa, 396. Veronica alpina, 396. Americana, 396. serpyllifolia, 396. Vibratory cilia, 140. Viburnum ellipticum, 387. Vicia gigantea, 380. Oregana, 380. Viguiera nivea, 658. Vilfa depauperata, 408. Viola blanda, 377. canina, 377. glabella, 377. Hallii, 377. Nuttallii, 377. renifolia, 288. sarmentosa, 377. Virgil, reading of MSS., 336. Volcanic activity, 486. Votes of thanks, 7, 327, 439, 484. W. Wislizenia Palmeri, 622. Woodsia scopulina, 411. Wyethia, 654. amplexicaulis, 655. angustifolia, 655. Arizonica, 655. glabra, 654. helenioides, 654. helianthoides, 655. mollis, 655. ovata, 655. robusta, 391, 655. scabra, 655. X. . Xanthisma, 633. Xanthocephalum, 632. Wrightii, 632. Xerophyllum setifolium, 405. Xylorhiza, 399. Xylosteon, 387. Zinneae, 654. Zone-observations, 500. Zygadenus Nuttallii, 405. Cambridge : Printed by Welch, Bigelow, & Co. ^i"V-7 MBL WHOI LIBRARY UH 1A7A 7 5H? Mit : ;.