ANNIVERSARY MEMOIRS
OF THE
BOSTON SOCIETY OF NATURAL HISTORY
PUBLISHED IN CELEBRATION OF THE
Fiktieth Anniversary of the Society's Foundation.
1830-1880
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1880.
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MUSEUM OF THE BOSTON SOCIETY OF NATURAL HISTORY.
ERECTED /863.
ANNIVERSARY MEMOIRS
OF THE
BOSTON SOCIETY OF NATURAL HISTORY
PUBLISHED IN CELEBRATION OF THE
Fittieth Aniwibersary of the Society’s foundation.
1830-1880
BOSTON:
PUBLISHED BY THE SOCIETY.
1880.
PUBLISHING COMMITTEE.
SamuEL H. ScuppEr, Epwarp BurGEss,
SamuEL L. ABgor, AupHeus Hyatt,
J. A, ALLEN.
PRESS OF A. A. KINGMAN.
BOSTON SOCIETY OF NATURAL HISTORY.
BERKELEY ST.
TABLE OF CONTENTS.
SOCIETY ANNALS.
List of the Present Officers of the Society. (1-page.)
Prefatory Note, with extracts from the minutes of the annual meeting, May 5th, 1880. (3 pages.)
Historical Sketch of the Boston Society of Natural History, with a notice of the Linnaean Society of
New England which preceded it ; including biographical notices of all the Society’s prominent past mem-
bers, officers and benefactors. By Tuomas T. Bouvn. (250 pages, six floor plans, view of the Museum, and
portraits of Benjamin D. Greene, George B. Emerson, Amos Binney, John C. Warren, Jeffries Wyman,
Thomas T. Bouvé, Augustus A. Gould, D. Humphreys Storer and William J. Walker.)
SCIENTIFIC PAPERS.
N.S. Smarter. Propositions concerning the Classification of Lavas considered with reference to the
Circumstances of their Extrusion. (15 pages.)
Aupneus Hyarr. Genesis and Evolution of the species of Planorbis at Steinheim. (114 pages, ten
plates on nine sheets, one plate of sections ; map and two sections in text.)
Samurt H. Scupprr. The Devonian Insects of New Brunswick; with a note on the Geological Re-
lations of the Fossil Insects from the Devonian of New Brunswick, by Principal J. W. Dawson, LL.D.,
F.R.S., ete. (41 pages, one plate.)
W.G. Fartow. The Gymnosporangia ( Cedar-apples) of the United States. (388 pages, two plates.)
Tueopore Lyman. A new Structural Feature, hitherto unknown among Echinodermata, found in
Deep-Sea Ophiurans. (12 pages, two plates.)
W.K. Brooks. The Development of the Squid, Loligo Pealii Lesueur, (22 pages, three plates.)
A. §. Packanrp, Jr. Zhe Anatomy, Histology and Embryology of Limulus Polyphemus. (45 pages,
seven plates.)
Epwarp Bureess. Contributions to the Anatomy of the Milk-Weed Butterfly, Danais Archippus
Fabr. (16 pages, two plates; one cut in text.)
SamuEn F, Crarke. The Development of a Double-headed Vertebrate. (6 pages, one plate.)
Cartes Sepawick Minor. Studies on the Tongue of Reptiles and Birds. (20 pages, one plate; six
cuts in text.) :
Epwarp S. Morsr. On the Identity of the Ascending Process of the Astragalus in Birds with the In-
termedium. (10 pages, one plate; twelve cuts in text.)
Lucien Carr. The Crania of New England Indians. (10 pages, two plates.)
Wituuam James. The Feeling of Effort. (32 pages.)
LIST OF THE PRESENT OFFICERS OF THE SOCIETY.
President.
SamueL H. Scupper.
Vice-Presidents.
JoHN CUMMINGS, FreperickK W. Putnam.
Custodian.
AupHEUS Hyatt.
Honorary Secretary.
SAMUEL L. ABBOT.
Secretary.
EpwarpD BuRGESS.
Treasurer.
CHARLES W. SCUDDER.
Librarian.
Epwarp BurGEss.
Committees on Departments of the Museum.
MINERALS. RADIATES, CRUSTACEANS AND WORMS.
Tuomas T. Bouve, H. A. Hacen,
R. H. Ricuarps, ALEXANDER AGASSIZ.
M. E. Wapsworrts. :
MOLLUSKS.
GEOLOGY. Epwarp 8S. Morse,
Wim H. Nizzs, J. Henry Brake.
G. Freperic Wricut,
INSECTS.
PALAEONTOLOGY. SamueEt H. ScupprEr,
Tuomas T. Bouve, Epwarp Burcess,
N. S. SHALER. A. §. Packarp, JR.
BOTANY. FISHES AND REPTILES.
JoHN CuMMINGS, F. W. Purnam,
Cuartes J. SPRAGUE, Turopore Lyman,
J. Amory Lowe tt. S. W. Garman.
MICROSCOPY. BIRDS.
SamvuEL WELLS, ; J. A. ALLEN,
R. C. GREENLFAF, SamuEL Cazor.
B. Joy JE¥Frriss.
MAMMALS.
COMPARATIVE ANATOMY. J. A. ALLEN,
Tuomas Dwiecut, E. L. Marx,
W. F. Wuirney. Georce L. GoopaLe.
ERRATA.
In the table of contents:
Fifth paragraph, for ten plates on nine sheets read nine plates on eight sheets.
In the Historical Sketch :
Page 216, 22d line, read Charles W. Eliot.
&“ 6th “ from bottom, for from all read from that of all.
« 247, 12th “ after with insert the chief causes of.
In Mr. Scudder’s memoir :
Page 33, line 9 from the bottom, for confidentially read confidently.
In Dr. Farlow’s memoir:
Page 3, note 2, for Ustitaginées read Ustilaginées.
“ 6, 9th line from top, for Huromyces read Huuromyces.
COP iamloblinc: 4c “ & hymeniferus read hymeniferous.
« 9, 5th “ “ bottom, for varies read vary.
“11,4th “ “ top, for Berke read Berk.
cout EE iG. LT readifigs 16.
18, Wath« “ “.* Gasperrini read Gasparrini.
« 20, 6th & 10th lines from top, for thuyoides read thyoides.
“ 21, 7th line from top, for gymnosporangium read Gymnosporangium.
ce DAeEStm ss (ts “« « Juminata read luminatum.
eS OGhese |S “« « tubercules read tubercles. :
* 31,28d © “© “ nseudoperidis read pseudoperidiis.
«39, 19th“ “ « before present insert the.
“« 33, 9th © “ © for #. lacerta read FR. lacerata.
Owing to the absence of the writer during the printing of this article a considerable part of the proof
could not be submitted to him for revision.
In Prof.. Morse’s memoir:
Page 7, 17th line from top, for fore read hind.
In Prof. James’ memoir :
Page 12, 10th line from bottom, for right read left.
ems Olin 1" sc “ left read right.
“« 30, 8th “ “ top, for work read no work.
La oO Oo
expressed my sincere regret that we can no longer be led in this work by the President
whose devotion we have been only too pleased to acknowledge by our ballots for ten years
past; but as long as his life is spared to us we shall have his sympathy and wise advice,
(v)
R. C. GREENLFAF, DAMUEL—Onpu4s
B. Joy JEFFRIES.
MAMMALS.
COMPARATIVE ANATOMY. J. A. ALLEN,
Tuomas Dwicut, EK. L. Marx,
W. F. Wuairney. Grorce L. GooparE.
PREFATORY NOTE.
Tur Boston Society or Natura History, founded in 1830 by a few earnest men,
has this year celebrated its fiftieth anniversary. Its growth during ‘this period has
been so considerable, it has gained for itself so firm a hold upon the esteem of our citi-
zens, and its relations to the higher education of the people have been so significant,
that it has been thought fitting to signalize this anniversary by the issue of a special volume
of scientific papers, preceded by a detailed history of the Society, the preparation of which
was entrusted to the President. Included in the history will be found the proceedings of
the jubilee meeting, held on the twenty-eighth of April last. At the annual meeting,
held a few days later, the President, Thomas T. Bouvé, Esq., declined a reélection ;
having been an officer of the Society for nearly forty and its President for ten years, -
no man living is so thoroughly identified as he with its life and interests during the
most eventful period of its history; and it is therefore fitting that this statement
should be followed by the tribute paid at the annual meeting to his untiring devotion
to the interests of the Society, not only during his Presidency, but for nearly the whole
period of its existence.
Boston, Dec. 15, 1880. PUBLISHING COMMITTEE.
Extract from the minutes of the Annual Meeting, May 5, 1880.
Mr. S. H. Scudder, on assuming the presidential chair, discussed the mission of the So-
ciety, closing his remarks with the following words: At a previous meeting I have already
expressed my sincere regret that we can no longer be led in this work by the President
whose devotion we have been only too pleased to acknowledge by our ballots for ten years
past; but as long as his life is spared to us we shall have his sympathy and wise advice,
(v)
and we may be sure that in all the work the Society undertakes, it will have no stronger
friend than he.
Mr. John Cummings thereupon offered the following vote: —
“Tn consideration of the fact that Mr. Bouvé has declined to be a candidate for the first
office of this Society, the members desire to express their grateful acknowledgment of the
Jong and valuable service he has rendered as President, and their cordial thanks for his
arduous labors, unremitted devotion, prudent and successful administration ; nor can they
part from him in this official capacity without the additional expression of their warm
personal esteem.”
No one ever associated with Mr. Bouvé, added Mr. Cummings, who did not feel himself
drawn to him by the strongest and tenderest ties. In his own experience he had never
met a man with so much devotion to any cause as Mr. Bouvé had shown for the
welfare of the Society.
Mr. Cummings’s remarks were warmly applauded and the motion was seconded by Prof.
A. Hyatt, who said, in respect to Mr. Bouvé’s administration, that although from the first
the present policy of the Society had met the severest criticism and sometimes disapproba-
tion from the intimate friends and advisers of the President, he had yet been able to keep
his judgment unwarped and to consider those ideas, which were new to him, purely on
their own merits. It is not too much to say that the Society’s aims, which we have heard
so highly praised in this anniversary year, could not have been so developed without Mr.
Bouvé’s constant support. The feelings expressed by Mr. Cummings will be echoed in
the heart of every officer of the Society, for we have always found our President full of
kindness and consideration, as well as just and sound in judgment.
Mr. F. W. Putnam said he could not allow this opportunity to pass without a few words,
which at best would be but a feeble expression of his feelings; for in addition to a long
and cherished friendship that every year had strengthened, his official ties to Mr. Bouvé
were double, and both were broken by his resignation, since, as might not be remembered
by all present, the President of the Society was ea-officio a member of the board of trus-
tees of the Peabody Museum at Cambridge; and while, as Curator of that Museum, he
welcomed his friend, the new President of the Society, he was very sorry to lose one who
had been so long connected with the Museum and had ever been ready to give his kindly
aid in furtherance of its objects.
Prof. W. H. Niles spoke of the large amount of work in the care and arrangement of
the collections which Mr. Bouvé had accomplished during the term of his presidency.
Most of this has been done after the business duties of the day, and how frequently he
has remained until called home by some one, none but his family know. When alterations
in the building were going on, he habitually inspected the entire premises after all
others had gone, to see that all was left in safety. The Society has steadily progressed
in its usefulness and scientific position during the administration of Mr. Bouvé, and he
Vil
now leaves the presidential chair with nothing to regret, and with the esteem and friend-
ship of every member. Day by day, and year after year, he has brought here a large
heart, full of geniality and goodness, and has been in himself a source of happiness to
those who have known him as President. It would be a pleasure to reciprocate, in some
small measure at least, his long-continued kindness, and this could be best done by each
member’s trying to make the Society so pleasant for Mr. Bouvé, that, as a source of his
future happiness, it should be second only to his home and his family. In conclusion, Mr.
Niles said he did not doubt that each member present would like to express in some spe-
cial way his personal respect and honor for him who was the dear friend of all and one of
the best benefactors the Society ever had; and he hoped they might do so by rising as
they voted for the adoption of the resolution proposed by Mr. Cummings.
The Chair accordingly called for a standing vote and the resolution was unanimously
adopted.
t.
1830. ANNIVERSARY MEMOIRS OF THE BOSTON SOCIETY OF NATURAL HISTORY. 1880.
HISTORICAL SKETCH
OF THE
BOSTON SOCIETY OF NATURAL HISTORY;
WITH
A NOTICE OF THE LINNAAN SOCIETY,
WHICH PRECEDED IT.
By THOMAS T. BOUVE.
BOSTON:
PUBLISHED BY THE SOCIETY.
1880.
nO
CHARLES JAMES SPRAGUE and JAMES CLARKE WHITE,
Companions with me for years in laborious work upon the collections of the Society,
these pages are dedicated,
with the great respect and kind regards of
Tur Avutuor.
HistoricAL SKETCH OF THE Boston Society or NaturAL History: witu A Notice
OF THE LINN#HAN SOCIETY, WHICH PRECEDED IT. By Tuomas T. Bovuvé.
No history of our Society can well be given without some brief account of the
attempts previous to its formation to interest the public in the study of Natural History.
Before any organized efforts were made to this end but few publications even had
appeared on the subject, and these are cited from remarks made by Dr. A. A. Gould in a
sketch of the Linnean Society, which appeared in the Proceedings of the Boston Society
of Natural History in 1863.1. The most valuable of them was one by the Rey. Manassah
Cutler, entitled “Account of some of the Vegetable Productions naturally growing in this
part of America, botanically arranged.” Another was a pamphlet published by the cele-
brated Dr. Benj. Waterhouse, who seems to have brought with him from Holland “some
general notions of Systematic Natural History.” The pamphlet was entitled, “Heads of
a Course of Lectures on Natural History,” Cambridge, 1810, in which he distributes the
lower animals under the heads of Ornithology, Amphibiology, Ichthyology, Insects and
Vermes; which latter he mentioned as “outskirts of Animated Nature extending to the
confines of the vegetable world.” In a note he said he would “extend, contract or omit
parts of his programme to suit his audience.” As Dr. Gould quaintly remarks, it does not
appear whether he ever had any audience at all. In addition to these publications
some articles of a practical character were written by Prof. W. D. Peck, who occupied the
Chair of Natural History at Harvard College from 1805 to 1822. They appeared in
agricultural papers, and the most important of them purported to give a natural history of
the slug worm and the canker worm. Dr. Gould, in referring to the Professor’s work at
Cambridge, says, ‘““He gave such instruction as was demanded, which was very little.”
Harris's Natural History of the Bible, Mather’s Magnalia, Thacher’s Dispensatory, with
some treatises on the medicinal properties of herbs, and a few other papers of little
importance, complete the publications referred to.
Tue LINN@AN SOCIETY.
The time at length arrived for an organized effort to excite some interest on the part
of the public in natural science, and the men were not wanting. On the 8th of
December, 1814, there met at the house of Dr. Jacob Bigelow, a number of gentlemen,
then prominent in the community, some of whom afterwards became eminent in their
several professions, if not in natural science. They were, besides Dr. Bigelow, Wm.
S. Shaw, Octavius Pickering, Dr. Walter Channing, Ezekiel D. Cushing, La Fayette
Perkins, Dr. Geo. Hayward, Nathaniel Tucker, J. Freeman Dana, John W. Webster, and
1 Vol. 1x, 335.
4 HISTORICAL SKETCH OF THE
Dr. John Ware. Dr. Channing was chosen Chairman, and Dr. Bigelow Secretary, and a
committee, composed of Dr. Bigelow, Mr. Pickering, and Dr. Hayward, was appointed to
draft a Constitution for the Society, which they called the New England Society for the
Promotion of Natural History. Two days after they met again by adjournment, and the
Constitution reported by the Committee was read, discussed, and adopted. Among its
provisions are some which may interest readers of the present day.
The Ist article provides that the Society shall consist of Immediate, Associate,
Honorary, and Corresponding Members.
The 2d, that the officers shall consist of a President chosen from the Honorary or
Immediate Members; Vice President, Corresponding Secretary, Recording Secretary,
Treasurer, and Cabinet Keeper, who shall be chosen from the Immediate Members.
The 11th, that there shall be a meeting once a week.
The 12th, that any Immediate Member who shall unnecessarily be absent three times
successively, shall forfeit his membership.
The 14th, that all specimens placed in the Museum shall be the property of the
Society, and that no others shall have a place, except by express vote.
The 17th, that no person shall be chosen an Immediate Member except by unanimous
vote of all present; other members may be elected by a two-thirds vote, but none
without nomination at a previous meeting.
The 18th, that there shall be a Standing Committee of five members, chosen annually,
to provide a suitable room for the collection, employ one or more persons for service,
and draw on the treasurer for payment of the expenses thereby incurred, under such
restrictions as the Society may from time to time make.
The 19th, that each Immediate Member shall pay $5 annually.
The 20th, that every Immediate Member absent from a stated meeting without excuse,
shall be fined fifty cents.
Such articles have been quoted of the Constitution adopted as tend to show the animus
of the members. Who can say that they were not thoroughly in earnest ?
In subsequent proceedings of the Society it appears that fines were collected, undoubt-
edly for absence without excuse ; but there is no recorded instance of a member forfeit-
ing his membership by unnecessary absence. .
It is not easy to understand the principle or the policy which dictated the selection in
all cases of persons on whom was conferred Honorary, Corresponding or Associate Mem-
bership. In numerous cases individuals were elected to the former who cannot be sup-
posed to have manifested much interest in natural science, and who too were residents of
Boston. They were distinguished perhaps as Doctors of Divinity, or as Doctors of Medi-
cine, but neither then nor afterwards were known as Naturalists. Among the Correspond-
ing Members are found the names of several residing in the immediate vicinity of Boston,
as Cambridge and Charlestown; which seems singular, for the perils of a ferriage
across the Charles, which at an earlier date might have made these ports appear distant,
were no longer to be incurred; good bridges then as now uniting the populations. But
this is not all, some of the Corresponding Members were citizens of Boston itself.
From the records it seems that the number of Immediate Members at first, or soon
after the formation of the Society, was about 20; of the Honorary, 19; of the Corres-
BOSTON SOCIETY OF NATURAL HISTORY. 5
ponding, 68, and of the Associate, 24. It is not clear what privileges these last had as
members of the Society, except the implied one that they were not subject to assessment.
In the list of the early Corresponding Members, it is pleasant to find the name of
Dr. William J. Walker, to whose great bounty the Boston Society of Natural History is
indebted for its present standing among the leading scientific societies of the world, if not
for its very existence; for there is much reason for the opinion that had the Society con-
tinued dependent on the voluntary labors of its members as would necessarily have
been the case without his help, it would have met the fate of the majority of the
societies of natural history, which have been formed under apparently favorable auspices,
have flourished for a time, and then faded out of existence. But more of this when his
large benefactions to the Boston Society of Natural History are mentioned in the course
of this history.
It may be a matter of interest to the reader to have presented here some of the names
of members connected with the Society, particularly of such as afterwards distinguished
themselves in their several callings, or at a subsequent period became active members of
the Boston Society of Natural History. Among them may be found : —
As Immediate Members :
Dr. Jacob Bigelow. Francis C. Gray. Dr. John Randall.
Dr. Walter Channing. Dr. Geo. Hayward. Dr. John Ware.
Benj. A. Gould. Octavius Pickering. Dr. John W. Webster.
As Honorary Members:
Hon. John Davis. Rev. James Freeman. Rev. John Prince.
Hon. John Lowell. Prof. Wm. D. Peck. Rev. J. Lathrop.
Hon. Christopher Gore. Rev. Manassah Cutler. Rey. J. T. Kirkland.
Dr. John Jeffries. Dr. John Warren.
As Corresponding Members :
Nathaniel Bowditch. Prof. Benj. Silliman. S. G. Perkins.
Josiah Quincy. Robert Hare. Dr. E. Hale.
Dr. W. J. Walker. Prof. Parker Cleaveland. Thomas H. Perkins.
Benjamin Pierce.
As Associate Members :
Joseph Tilden. Rev. Wm. Ellery Channing. Dr. Geo. C. Shattuck.
Dr. J. C. Warren. Wm. Minot. Rev. Edward Everett.
Dr. James Jackson. Richard Sullivan. Nathan Hale.
Francis Boott.
The first officers elected were
John Davis, LL.D., President.
Wn. S. Shaw, Vice-President.
Jacob Bigelow, Corresponding Secretary.
George Hayward, Recording Secretary.
Octavius Pickering, Treasurer.
John W. Webster, Cabinet-Iceper.
On December 29th, in accordance with a vote previously passed, the several members
having specimens to present to the Society towards the formation of a museum brought
them forward, and it is recorded that a considerable collection was made.
6 HISTORICAL SKETCH OF THE
At a meeting held January 14th it appears that much dissatisfaction was expressed at
the name of the Society, and it was therefore voted that each member should propose in
writing at the next meeting such name as he judged the most suitable. When the Society
again met, on the 21st of January, 1815, the members, after due consideration, unani-
mously
Voted, That the Society shall be called the Linnzean Society of New England.
To understand the spirit and do justice to the labors of the active members of this
Society, let us look a little into their proceedings of the first year. February 4th it was
voted that each member shall,if possible, prepare some animal in the course of the week
and present it to the Society at the next meeting. In the record of a following meeting
it is stated that a considerable number of animals were presented to the Society, all of
which had been prepared by the members in the course of the week. Whether these
animals were of the dimensions of elephants or mice is not stated. At the same
meeting the Recording Secretary was requested to draw up some popular directions
for the preservation of specimens in Natural History, to be given to masters of
vessels and others, and to report at the next meeting; and at the next meeting a
circular letter was presented containing such directions. This was ordered to be
printed.
The subjects brought before the members did not always pertain to natural history. At
a meeting on March 4th a paper by the Hon. John Lowell was read, “ On the.resemblance
between certain customs of the modern Italians and ancient Romans.” It was voted to
copy it into the common place book of the Society.
Besides the weekly meeting it was decided to hold once a quarter a general meeting, to
which should be invited the Honorary, Corresponding and Associate Members, and at each
such quarterly meeting a paper by some person appointed at the preceding meeting
should be read on some subject connected with the pursuits of the Society. The first of
these quarterly meetings was held on the 21st of June, and Judge Davis delivered what
the record of that date states to have been ‘an elegant address on the advantages of
natural history and the objects of the institution.”
At the regular meeting held a few days afterwards, Dr. Randall, as the text expresses
it, was unanimously chosen to perform at the next quarterly meeting. It was also voted
that on the next Wednesday, the 28th of June, the day appointed by the Constitution for
the Annual Meeting, the Society should dine together at Richards’ in Brookline. In
accordance with this vote, the Immediate Members met at Brookline and after trans-
acting the business of electing officers for the year, they dined together, the record states,
in company with the Hon. John Lowell and Hon. Josiah Quincy. This combination of
scientific pursuits with feasting is not mentioned as a peculiarity of the members of this
pioneer society, and even in later days it has not been found disagreeable or unprofitable.
In some degree these Annual Meetings partook of the character of what has been more
recently called in some of our societies “ Field Days’’, for they were held at some selected
place in the country, and a portion of the day was employed in obtaining specimens.
Thus, at the first meeting, it is mentioned that “after dinner the members divided them-
selves into several parties for the purpose of making an excursion in search of specimens
BOSTON SOCIETY OF NATURAL HISTORY. 7
in the several branches of natural history.” Towards evening it is further said: “they
returned to town after having passed a delightful day.”
Presentations of objects of natural history are frequently mentioned as having been
made to the Society during the year, and sometimes those of other character, as
for instance a likeness of Mr. Roscoe, of Liverpool, presented by Mr. Francis Boott.
In June, the Society was the recipient of two living tigers, presented by Capt. Stewart,
of the United States frigate Constitution. Whether it was more fortunate in receiving or
losing them, it is now impossible to say ; certain it is, they were by some means lost,
and a Mr. Savage was held accountable ; for in February, 1818, the record states that
“a settlement was effected with Mr. Savage for the loss of the Brazilian tigers, which
were presented to the Society by Capt. Stewart of the Navy,” and it subsequently
appears that the treasurer was authorized to pay out of the money received from
Mr. Savage, rent due by the Society.
At the second Quarterly Meeting of the year, held in September, Dr. Randall read an
interesting paper on the history and medical properties of the native plant Triostewm
perfoliatum.
In October, the Museum was arranged into several departments, and members were
allotted to take charge of them, as follows :
First division of Minerals. . Dr. Randall. Amphibia. : : . Mr. Gould.
Second “ ¢ & . Dr. Channing. First division of Insects . Mr. Pickering.
Avenel = Ge & . Mr. Dana, Sen. Second “ ¢ ss a MirDanas dirs
Plants . ; 6 5 . Mr. Tucker. Adoyygel ec ¢€ » Mr. Codman.
Mammalia. , : . Dr. Bigelow. Shells. 0 P Fi . Mr. Gray.
Birds. 0 . : . Dr. Cushing. Zoophytes, &e. é . Dr. Hayward.
Fishes . 3 5 ‘ . Dr. Ware.
In November, a paper was read by Dr. Goodwin of Sandwich, on tadpoles found there
In December, Dr. Channing was requested to make up, from the duplicates, a box
of minerals, and send to France, for exchange, and the Vice President was requested to
use his exertions to procure a moose for the Society. Professor Cleaveland of Bowdoin
College, a distinguished mineralogist, had been invited to deliver the quarterly
address in December, but unable to visit Boston, was obliged to decline, and no address
was delivered.
It has been thought well in view of the lesson to be derived from the experience of
this Society, to give at some length an account of the proceedings of this first year of its
existence with the intention of being more brief in mention of subsequent proceedings.
Enough is known of the character and ability of the members of the Society, and enough
has been shown of their devoted zeal in its service, to satisfy all that if ultimate success
did not crown their efforts, the fault was not so much in them, as in the fact, that more
was undertaken for accomplishment through voluntary labor, than can ever be expected
from men however zealous, who are engaged in professional or business life.
The second year of the Linnzan Society was marked by the same manifestation of zeal
on the part of the members as was shown during the first. From the assessment of the
members enough was raised to pay for some professional labor, and an artist, so called, was
hired, who probably could mount specimens; as in January, a committee was appointed to
8 HISTORICAL SKETCH OF THE
procure animals, that he might find employment in preparmg them. In February the
room in which the cabinet was kept beg unsatisfactory, one was hired over Boylston
Hall, where the collection was placed, and where meetings were subsequently held.
The Museum of the Society was opened to the public every Saturday afternoon.
In all the months of this year valuable donations of specimens were received. Among
others specified may be mentioned a living bear, presented by Commodore Chauncy of the
navy; a miscellaneous collection of objects of natural history from Bowdoin College; a
valuable collection of birds from Africa; besides cases of insects, handsome minerals
and beautiful shells and corals, from other donors.
The meetings were well attended, and there appeared throughout the year no loss of
interest on the part of the members. The annual meeting was held at Fresh Pond Hotel,
Cambridge, and the attendance was general on the part of the members. Judge Davis
presided, and the day being pleasant, all found great enjoyment in excursions and in
amusements until dinner, which they partook of together, returnmg to town in the
evening.
In August Dr. Bigelow gave an interesting account of an expedition, undertaken
by himself, and the other members of the Society, for the purpose of visiting the White
Mountains in New Hampshire. Being equipped, as he states, with proper instruments,
the height of the mountains was ascertained more accurately than it ever had been. His
estimate of the height is not mentioned. Particular attention, the record states, was
given to the mineral, animal, and vegetable specimens that were found in the mountains,
and the whole paper abounded with curious facts and ingenious observations. All
who in subsequent years had the pleasure of intercourse with Dr. Bigelow, need
not be assured of the interesting character of the paper presented by him to those who
were favored by hearing it. It would, undoubtedly, be read with great interest now,
notwithstanding the general knowledge prevailing relative to the region mentioned.
The Society increased in numbers during the year, and there appeared no loss
of interest on the part of the members. Save a few lines found in the report of
one of the meetings in September, everything denoted great prosperity. But these
few lines are enough to suggest to those of a later day, conversant with the
history of natural history societies, the probable decay at a not distant time, of
that zeal and interest so marked at this period. They may be found in the report of a
committee appointed to obtain from the Legislature an act of incorporation. This report
declares it imexpedient to petition at present, provided our expenses can be defrayed
until we are united with the Atheneum. This is the first expression in the records
implying what, alas, the history of most natural history societies shows to be inevitable
when sustained only by the voluntary labors and assessments of members, and dependent
on the uncertain contributions of friends; lack of adequate means for the care and
presérvation of the rapidly augmenting collections and consequent disaffection. We
shall later see, that notwithstanding the strenuous exertions of the members, and
abundant success in collecting specimens, an increasing uneasiness manifested in a
disposition to unite with another society and thus sacrifice its own identity ; or, failing
this, to dispose of its collections in a way that would not have been considered for a
moment at an earlier period.
BOSTON SOCIETY OF NATURAL HISTORY. 9
The time, however, has not arrived to dwell upon anything not agreeable in the record
of the devoted workers of the Society. The Recording Secretary appears to have been
quite elated at the progress made, for he writes in October: The zeal and activity of the
members seem to be unabated, and if the collection continues to increase for a few years
in the same proportion, it will surpass every establishment of the kind in the United
States, and almost rival those of Europe.
The close of the year shows no less activity. In December a valuable paper was read
by Dr. John Ware. Large and valuable specimens were set up under the superintendence
of the committees, and arrangements were made, as the record states, for labelling all the
birds, beasts and fishes belonging to the cabinet. A committee was also appointed to see
what could be done in relation to furnishing permanent apartments for the collection of
the Society, which implies, probably, that.it had increased to a size rendering more room
necessary for its accommodation.
1817. Judging by the records of this year’s doings alone, it might be thought that all
was well with the Society, and that its continued existence and progress were secure.
Donations continued to pour in, many of a very valuable character. Among them may be
noticed a fine American elk, which is mentioned as one of the most interesting and
valuable animals which our country affords. There seems certainly to have been
no fears-of calamity, for in the early part of the year a fine specimen of a female
moose, from Maine, was purchased, and the hope is expressed that another year
a male may be obtained, together with a reindeer, which the Secretary states will
make complete the collection of the deer of the United States. Arrangements were
also made with Capt. Waterman to procure specimens of natural history from the
coast of Africa.
The annual meeting was held at Brookline, where the members, as usual, sat down to
dinner. Valuable papers were presented, one on the mineralogy and geology of
Cambridge and its vicinity, by Mr. 8. L. Dana, Jr., containing, it is stated, ‘ unquestionably
more accurate information on the subjects upon which it treats than has ever before been
communicated ;’ one on the luminous appearance of the sea, translated from the
Transactions of the Swedish Academy by Judge Davis; and one on the medical properties
of Phytolacca decandra, by Dr. Hayward.
It is distinctly mentioned by the Secretary, in June, that the usual business of
collecting and preserving specimens had been regularly attended to.
On the 18th of June, Dr. Channing delivered an address. Ata previous meeting of
the Society it had been voted to call a public meeting of the members, each of
whom should have the privilege of inviting others to be present on this occasion,
which was made one of great interest, many of the leading men of the state and city
being present. Among them, the Governor, Lieutenant Governor, Council, members
of the Senate, and many ladies. The whole company were surprised at the size of the
collection, and highly pleased with its general order and neatness.
At twelve o’clock the address was given, which was upon the importance of literature
and science, particularly to the people of New England. The claims of the Society to the
patronage of the public were urged with great force and ingenuity. A sketch of the
progress of the institution from its first foundation was given, and statements made
showing the rapid growth of the cabinet.
10 HISTORICAL SKETCH OF THE
The interest excited by this meeting gave the Society reason to believe that the
importance of its work was fully appreciated, and that the public already felt disposed to
protect and patronize it. It is sad to think how soon the hopes excited by the
feeling manifested at this meeting were doomed to fade away.
Soon after this meeting, wonderful stories were circulated concerning a strange marine
animal, said to have been seen in the harbor of Gloucester, and a special meeting of the
Society was called for the purpose of taking measures to obtain information. Judge Davis,
Dr. Bigelow, and Mr. Gray, were constituted a committee to write to, and have depositions
taken of, all who had seen the animal. The committee reported, in September, that they
had no doubt of the existence of an animal of extraordinary appearance and enormous
dimensions, as there were many credible witnesses. They expressed the hope of getting
more information soon. In October, a very. full report was made upon what was
now designated as the sea serpent, and an account was also given of a small one, probably,
the record says, of a “spawn,” that had been taken at the water’s edge. The committee
were of the opinion that these animals were of a genus wholly unknown to naturalists,
and they designated them under the name of Scoliophis, from the singular curvatures
of the spine, by which they possessed a vertical motion. To this they added the specific
name Atlanticus.!
It is a subject of great regret, the Secretary wrote, that all the efforts that were made
to take the great serpent proved wholly ineffectual, notwithstanding the zeal and activity
of his pursuers.
1818. We have thus far traced the history of this Society from its formation, have
dwelt upon the evidences of its rapid progress, and have had brought before us accounts
of its great acquisitions, through which it had become possessed of a collection which, in
the language of its Secretary, seemed likely to surpass any one of like character im this
country and even rival the great collections of Europe. Henceforth we shall find evidence
of declining vigor on the part of the Society as such, notwithstanding great struggles on the
part of many of its members to sustain it and give it renewed activity; we shall see the
interest in its meetings rapidly wane, and its valuable cabinet becoming ruined for the want
of proper care; we shall see that even the hope for continued existence is giving place to
utter despair, foreboding dissolution.
In January a committee was appointed to make propositions to the trustees of the
Athenzum for a union of the two institutions, and if this could not be effected, to report
what measures should be taken for the preservation of the cabinet.
Meetings were held in the succeeding months, but not with so much regularity as here-
tofore. At one of the meetings a valuable paper was read by Dr. J. W. Webster on the
mineralogical character of the Island of St. Nicholas, which he had lately visited. This
seems to have been the only paper brought forward during the year. The Immediate
Members-‘made an excursion up the Middlesex Canal, upon invitation of Mr. J. L. Sulli-
van, and they dined together at Woburn, — their last dinner as a society.
1 Report of a Committee of the Linnzan Society of New 52 pp. See remarks by Dr. Jeffries Wyman, Proc. Bost.
England relative to a large marine animal, supposed to bea —_— Soe. Nat. Hist., rx, 245.
Serpent, seen near Cape Ann, Mass. Boston, 1817. 8vo.
BOSTON SOCIETY OF NATURAL HISTORY. Tut:
1819. During this year the meetings were not held with any regularity. Attempts
were made to take charge of and preserve the specimens, but without success, and the
members had the mortification of seeing a museum going to decay that had cost them so
much labor and expense ; but it seemed inevitable. They were mostly engaged in profes-
sional pursuits, and of course could not give their personal services to the preservation of
the collection; and the funds of the society were not sufficient to hire any one perma-
nently.
1820. Things remained in this condition until March, 1820, when a meeting was called
for the purpose of considering the expediency of disposing of the collection.
It was then voted, that if one hundred dollars per year could be obtained for ten years,
the members would renew their efforts to preserve the institution.
In April it was reported that enough had been subscribed, and more, for the preser-
vation of the collection. This seemed for a time to revive hope and inspire interest.
Amendments were made to the Constitution, and a committee was appointed to attend to
the preservation of the collection. A number of new members were elected.
In May, committees were chosen to examine and report upon the state of. each depart-
ment of the collection, and they were expected to attend at the hall of the museum every
Saturday, from 3 to 6 o’clock. A committee was also appointed to petition the legisla-
ture for an act of incorporation ; evidence certainly of renewed hope.
The Society became incorporated, and the first meeting under the act was held in June.
Dr. Jacob Bigelow was elected President.
In August a specimen of a seal and several minerals were presented, and in October
there were many minerals added to the collection. In December a movement was made
towards the formation of a library, and in the following March (1821) rules and regula-
tions were adopted for it. Notwithstanding, however, these signs of activity on the part of
the Society, the records afford sufficient evidence of declining interest. The meetings were
not well attended. Immediate Members resigned as such, and were made Associate Mem-
bers, mainly for the reason that they could not attend to the duties of the former.
1822. In the early part of this year there yet appeared no evidence of yielding to the
inevitable, and specimens, among them the bones of a camel, were received for the cab-
inet with satisfaction and thanks. ‘In August, however, we find that a committee had
been appointed to consider upon the future disposal of the cabinet, which reported :
“ That it appears, by the resignation and non-attendance of members, that it has become
burdensome to individuals of the Society to support its meetings and collections as they
have hitherto done; that it is expedient, therefore, to suspend its meetings and give up the
room of the Society, and place the collection, or such part of it as can be preserved, in
some place where it will occasion no further expense to the Society or its contributors ;
that a committee be appointed to remove it from its present location and place it in the
hands of any other person or persons who will afford suitable rooms for its reception, the
preference being always given to a scientific corporate body; that the present funds of the
Society be devoted to removing, securing and enlarging the collection, at the discretion of
the committee.”
This committee was made permanent, with directions to appoint a Secretary, and to call
a meeting of the Society on the application of three members.
12 HISTORICAL SKETCH OF THE
The expression that the funds of the Society be devoted to enlarging as well as securing
the collection denotes the existence of a vague hope at least of renovation.
The election of officers was made, as in former years.
1823. In March of this year a meeting was called by the Society, and the committee
appointed in August of the previous year relative to the collection reported, that they had
offered the whole of it to the Boston Athenzeum, upon condition that suitable rooms should
be provided for its reception and preservation, but that the Trustees had declined to accept
it; that they had subsequently offered it to the Corporation of Harvard College or to the
Board of Visitors of the Massachusetts Professorship of Natural History, who jointly
accepted the offer, agreeing to erect a building for the collection and to grant to the mem-
bers of the Society free access to the collection and to the Botanic Garden.
This report after consideration was acted upon by a vote that the conditions on which
the Corporation of Harvard College and the Board of Visitors of the Massachusetts
Professorship of Natural History, propose to accept the cabinet of this Society, be acceded
to; and the committee were requested to make the transfer. This was done, and the
balance of cash in the hands of the Treasurer, $264.29, was also included in the transfer.
A vote was finally passed that all subscriptions and assessments not collected be can-
celled. Thus came to an end the Linnzan Society so far as exertion for the furtherance
of the objects of its existence was concerned. It yet remained a corporate body, and
years after, upon the formation of the Boston Society of Natural History, it was once more
called together by its Secretary for the purpose of recovering if possible from Harvard
College such part of the collection as yet remained worth removing, in order to present
it to the new society. This reclamation was made on the ground that the College had
failed entirely to comply with the conditions made at the time of the transfer; no building
having been erected, and proper care not having been given for its preservation as a
collection for promoting the study of natural history. In the sketch which follows of
the doings of the Boston Society of Natural History, it will be found that very little of
the really extensive and valuable collection of the Linnzan Society came into its possess-
ion, though all that remained of it was given up by the College. It had gone to ruin for
want of care, as hundreds of earlier collections had before it, and as hundreds will
hereafter, if the views which the history of the Linnean Society are calculated to incul-
cate do not prevail in their aims and purposes.
That these views may be presented and dwelt upon has been the motive of giving
so full an account of the doings of this Society, as its experience so well illustrates their
truth. As stated in an earlier page, if success did not crown the efforts made
by the members to build up a permanent institution, the fault was not so much in them,
as in the fact that they undertook more than it was possible for men engaged in
professional or business life to accomplish, however zealous and devoted they might be.
The views referred to and which it is thought desirable to inculcate, may be given
in a few paragraphs. They are not new, for the same ideas may be found expressed in an
address delivered before the Linnzan Society of London, in 1867, by its President, George
Bentham, F.R.S., and also in an article by Dr. H. A. Hagen, published in the
American Naturalist (Volume x, pp. 80 and 135). They are as follows:
BOSTON SOCIETY OF NATURAL HISTORY. 13
No society organized for the pursuit of the study of natural history should undertake
to form a large rhuseum, unless it is endowed with means fully adequate for the constant
care and preservation of its collections, either through support of the government,
or from funded property that will yield income sufficient for such purpose. Large
collections require enormous expense for preservation from destructive agencies, in
the necessary supplies of jars, bottles, alcohol, and other articles absolutely required
for use; and .for the payment of competent curators; as experience demonstrates that
none others than those who are paid for their services can be relied on to permanently
do the work, without which, sooner or later, all there is destructible in a collection
will certainly go to ruin. In the early period of an institution founded by voluntary
effort and designed to be so sustained, the members, zealous and active, may for a time,
and while the collection is not great, manage to arrange the specimens received, and keep
them from destruction by care, but as the museum increases, this becomes onerous
to them, and finally impossible. Its impending destruction discourages the members,
and the society itself, unable to bear the necessary expense of preserving what they
look upon as an important element of existence, is finally dissolved. A society of
natural history not supported by government, and inadequately endowed, should never
undertake to make more than a very limited collection of specimens, and these should
be confined to such as illustrate the natural history of the immediate neighborhood,
with perhaps a few others, typical specimens only, of forms found in distant regions.
Where more than this is attempted by any society, continued existence and progress
can only be predicted in case it possesses ample means to employ steadily a sufficient
number of capable men to take charge of its museum, and exert a_ careful
watchfulness over the specimens. No society can long exist that depends upon voluntary
continuous labor on the part of its members, or on the voluntary subscriptions of its
friends.
Nor is the collection of an immense number of specimens in every department of nat-
ural history a desirable thing for the general student. It is far more important that there
shall be an epitome collection so arranged as to give elementary instruction to visitors
who seek knowledge and to whom a great multitude of specimens might be confusing. Of
course there is no objection to the largest collection of known species where there are
abundant means to obtain and care for them, but an arrangement of such should always
be preceded by a proper synoptical series; the latter for the instruction of the general
student, the former for the use of advanced naturalists who need such collections for
comparison. A large collection has the effect of attracting great attention, and the
wondering thousands who are drawn by its exhibition to visit it daily or weekly, enjoy an
innocent pleasure that is well worth providing for in all large communities, especially as
the influence may often go far beyond gratifying curiosity. The collection of species local
to the neighborhood, should perhaps be the aim of every society, as a knowledge of all the
forms of life met in our daily walks is very desirable.
Perhaps the experience of no society better illustrates the truth of some of these remarks
than that of the Linnean Society. It was formed by men of more than ordinary ability,
and in a community ready and willing to aid it by voluntary contributions. Its members
were hard workers, and freely gave much time to its interests. But it had no funded
14 HISTORICAL SKETCH OF THE
wealth and could not look to government for support. It flourished greatly for a consid-
erable period and only showed signs of weakness when its rapidly increasing collections,
garnered from every quarter of the globe, called for continuous labor and large expendi-
ture of money. Engaged as the members were in professional or business occupations,
they could not give the former, and they became tired of soliciting subscriptions to meet
the latter. The result was inevitable.
Tue Boston Society or NAaturaAL History.
In passing from the consideration of the doings, the experience and the dissolution of the
Linnean Society to a review of the history of the Boston Society of Natural History, the
question naturally arises in the mind whether the new Society started under any better
auspices, financially or otherwise, than the old, and if not, whether its aims and objects
were so different as to render it less liable to ultimately meet with the same fate.
A careful reading of its records fails to show that pecuniarily it was any better provided
with means in the early period of its existence, or that its aims and objects or its proposed
methods of action were in the least different from those of its unfortunate predecessor.
This is especially noticeable, as among its earliest members are found the names of several
who had been active in the Linnean Society.
As will be seen further on, the Society was at first dependent entirely on the annual
assessment of its members; yet it proceeded at once to collect specimens for its museum
without discrimination, thus involving itself in the same kind of expenditure for their
arrangement and preservation. That it finally succeeded in establishing itself on a firm
foundation will be seen to have been the result of fortunate circumstances that could not
have been foreseen, much less depended upon, and without which success would probably
have been impossible.
The first meeting of such persons as favored the formation of a new society was held
at the house of Dr. Walter Channing, February 9th, 1850. Dr. Channing was made
Chairman, and Mr. Simon E. Greene, Secretary. A committee was appointed to
recommend at a future day such measures as it should judge advisable for the formation
of the Society, and for creating an interest on the part of the public in its objects.
Dr. George Hayward, Dr. John Ware, Mr. Edward Brooks, Dr. Amos Binney and Mr.
Geo. B. Emerson, composed the committee. It does not appear whether other persons
were present than the seven named, as the number that met is not mentioned. Of those
whose names appear, three were active members of the Linnzean Society, viz.: Dr. Walter
Channing, Dr. Hayward, and Dr. Ware. There were two other original members
of the new Society who had been active in the Linnean, viz.: John Davis, LL.D., and
Mr. Henry Codman.
At a meeting subsequently held, the date of which is not given, the committee made
a report, which was adopted and a vote was passed, ‘‘ That a Society on the plan proposed,
be now formed,” and this was followed by the appointment of a committee to wait upon
persons favorable to the objects of the Society and obtain their signatures ; with authority
to call another meeting as soon as a sufficient number had subscribed.
BOSTON SOCIETY OF NATURAL HISTORY. 15
Such a meeting was called together on the 28th of April, and was held at the room of
the Trustees of the Atheneum at 7 1-2 o'clock P. M. Dr. Channing was chosen
Moderator, and Theophilus Parsons, Secretary. The names of the subscribers were read,
and a sketch of rules and by-laws for the government of the Society presented for con-
sideration. It was then
Voted, That the name of the Society shall be The Boston Society of Natural History.
Then followed discussion on the rules proposed, and finally a committee was appointed
to draft a constitution and code of by-laws and to report at the next meeting. Dr. Binney,
Dr. Hayward and Simon E. Greene were made this committee.
Thus was formed this Society, destined to become one of the leading institutions of the
kind in the world, into whose museum thousands would gather weekly for observation and
instruction, and whose publications would be known and valued in every civilized
community.
The next meeting was held on May 6th, and the constitution and by-laws which had
been proposed, after due consideration and with some amendments, were adopted. An
adjournment for one week followed. On reassembling at the apnointed time the members
proceeded to vote for officers and the following named persons were chosen to fill the
positions designated :
Thomas Nuttall, President.
Geo. Hayward, Wirst Vice-President.
John Ware, Second Vice-President.
Gamaliel Bradford, Corresponding Secretary.
Theophilus Parsons, Recording Secretary.
Simon E. Greene, Treasurer.
Seth Bass, Librarian.
CuRATORS:
Francis C. Gray, Edward Brooks, Amos Binney, Jr.,
Geo. B. Emerson, Walter Channing, Benj. D. Greene.
Joseph W. McKean, Francis Alger,
A committee was then appointed to make enquiries relative to the collection of the
late Linnean Society, which had been presented to Harvard College upon certain
‘conditions which had not been complied with, and to learn whether the whole or any part
of it could be obtained for the cabinet of this Society. No farther meeting is recorded
until August 9, though the adopted by-laws required that one should be held on the first
Thursday of every month. At this meeting it was announced that Dr. Nuttall had
declined to accept the office of President, whereupon the members present proceeded to
fill the vacancy, and Benj. D. Greene was unanimously elected. Thus was completed the
organization of the Society, and we find that the Council, now composed of all the officers,
proceeded at once to take active measures for the furtherance of its objects. The next day
after the election of Mr. Greene, it held a meeting and appointed a committee to arrange
for a course of lectures, to designate the lecturers, and to decide upon their compensation ;
also one to procure rooms for the use of the Society. At the next meeting of the Council
a week later, the committee on lectures reported in favor of a course of sixteen to be
given besides an introductory lecture, and that tickets of admission be put at $3 each,
16 HISTORICAL SKETCH OF THE
&5 for a gentleman and lady, and $2 for each person additional. The subjects proposed
and the number of lectures to be devoted to each were as follows:
Two on a general account of the Mineral Kingdom and Geology, particularly as
connected with animal and vegetable remains ; four on Anatomy and Physiology of the
Vegetable Kingdom, with general account of the characters, relations, and uses of plants
and their distribution ; two on Anatomy and Physiology of the Animal Kingdom, and of
the principles upon which its scientific arrangement is founded, etc.; two on the
Mammalia; two on birds; one on Reptiles and Fishes; two on Insects; one on
Invertebrate Animals.
Subsequently the Committee reported that they had decided upon the compensation for
the lectures, and fixed it at $20 for each. The persons selected to deliver the lectures,
and who accepted the invitations, were Dr. George Hayward, Mr. Thos. Nuttall, Dr. Gam-
aliel Bradford, Dr. John Ware, Dr. Walter Channing, Dr. J. V. C. Smith and Dr. D. Hum-
phreys Storer. The introductory lecture was free to the public. This course of lectures
was commenced on the third Tuesday of October, and they were continued weekly.
Where they were delivered, and by whom the introductory one was given, does not appear
in the records.
These lectures yielded a net profit of $174.58. Besides this course, there was another
given under the auspices of the Society, before the close of the lecture season, by Mr.
Nuttall, on Botany. This yielded $170, $100 of which was paid the lecturer and $5.50
for expenses; the balance, $64.50 going into the treasury.
It will be recollected that in the sketch given of the closing proceedings of the Lin-
nan Society, it was stated that as the Trustees of Harvard College had failed to comply
with the conditions binding upon them in accepting the collection of that Society, re-
clamation had been made with the purpose of presenting whatever might yet be of value
to the Boston Society of Natural History. This had been done at the instance
of several members of the latter society who had likewise been members of
the former, and who reasonably felt aggrieved at the want of care shown for
the collection by its possessors. One of these, Dr. Hale, remarked that “ he felt it to be his
duty as an officer of the Linnean Society, to express the opinion that something effec-
tual should be done; that he would take the opportunity to again assert that
Harvard University had forfeited all her right to the possession of the cabinet of
the Linnxzan Society. The members of that Society were not so faithless to the
cause they had espoused as to desert it. When few in numbers and burdened with
heavy assessments, they had relinquished their rich collection to the Corporation of said
University, that body having passed at a formal meeting a vote to erect a suitable
building to preserve the collection, for the benefit of students m natural history.
That agreement had not been complied with, no buildmg had been erected, and
the specimens were scarcely to be found. Justice to the members of the Linnean
Society compelled him to make these observations.” It seems now but right to give
here the remarks of one whose statement can be taken as authentic concerning the
whole matter, as it furnishes more succinctly than anything else found, a_ full
justification of the course taken in presenting the valuable collections of the Linnzwan
Society to the College. Provision was made as far as was possible for its preservation, in
BOSTON SOCIETY OF NATURAL HISTORY. yy
placing it where it was thought it would be of great service to students in Natural
History.
The result of the application which was made to obtain for the Society whatever might
be left of value may be given in the few words taken from the record of the Annual
Meeting of the Society in May, 1832, which are as follows: “In the course of the year,
an order was obtained from the President of Harvard College for the surrender of such
articles as might remain of the old Linnzan Society, in pursuance of which a quantity of
refuse matter was sent to the Society’s room, but nothing of any considerable value was
obtained.”
Early action was taken to render the monthly meetings interesting, first, by referring
specimens presented to such Curators as were the most interested in the department
to which they belonged, to report upon at the next meeting. This added much interest
to the proceedings, and led to better attendance. At that time, so little was known of
many of the objects now familiar to all in the collections of natural history, that many
which would now be received without remark, because of their well known character,
excited not only much interest, but considerable discussion. It was at a time when a
convoluted mass of chaleedony might have been seen in the Boston Museum, labelled
petrified kidney, when at the store of a dealer in curiosities, within a stone’s throw of the
hall of the Society, fossil corals were exposed for sale as petrified flagroot, when Ammonites
upon being discovered in the rocks were heralded in the papers as coiled snakes,
sometimes mentioned as being as large as cart-wheels, and exciting wonder in proportion
to their size. The writer well remembers receiving notice of a remarkable “ petrified
bug” in a museum at New Orleans, and upon its being procured and sent to him,
finding it to be an excellent specimen of a Trilobite, originally, no doubt from the Trenton
limestone of New York.
Soon after the organization of the Society a room was hired for its use in the
Athenzeum building in Pearl street. Here its collections were deposited and here the
meetings, after the first two, were held until more suitable accommodations were obtained
three years afterwards. The early meetings took place in the evening, but subsequently
for several years in the afternoon, sometimes at 3 and sometimes at 33 o'clock.
They were held once a month until August, 1833, but after this time twice a month.
In January, 1831, measures were taken to procure an act of incorporation for the
Society, and in the same month, in view of the great lack of books on Natural History, it
was Voted—That this Society considers a library of works essential to its success ; and
funds were appropriated to purchase the best elementary books in the different branches
of natural history.
A Committee of the Council was also appointed at this time to apply to the Governor and
his Council requesting that the gentleman making a Geological Survey of the State might
furnish the Society with a suite of geological specimens. No further reference is made to
this matter, and the request does not appear to have been favorably considered, as no such
collection ever became the property of the Society. The State Collection itself, was, how-
ever, deposited for several years in the Society’s rooms.
A singular provision to obtain information was made in February, 1831, by a vote
passed, which was in substance as follows:
18 HISTORICAL SKETCH OF THE
That a blank book be provided and placed on the table in which may be written
queries on subjects of natural history by any member and such answers as may be given ;
unless the latter may be of considerable length, when they may be put on file.
March 18, 1831. 3,014.38
(Caine immer Mere CM etre isu ters nck tects Gite wr os 8S Re cet wen! wy |e 838.32
GD AT yee MCC SPR Myo Yoh ty Feed cee alma Mlsy Event aha) esses 71.89
Temporary loans, . . . Spee a Ae cis tace has Che in Seah ve 62,010.00
Investments of Walker fond, Be sh bas) veh m oeiee St fal ote ise 41,105.00
IMGCTES ue MEER MMMM RIICCEe NCTM Ys Eled ane Yorv. =: gis CUES 6 ica te. 251.81
$119,947.56
ShoOwinotaapAlancerdMeRMmMyOter est sw ti ise sh 6 «oe te 3397.05
106 HISTORICAL SKETCH OF THE
As Treasurer of the Courtis Fund he reported that it consisted of an amount due from
Way Soin, Ube ONL 65 6 6 bo Go Bo 6 o oO oO oo oF Bo ttopebeil
POOL G3, ToNKOIAMeANE) INO GE oo G6 Hon oH 6 6 nm 6 6 0 bo poo 6 6 5 BHI
As Treasurer of the Bulfinch Street Estate he reported receipts amounting to . . $1.073.00
ING CrqyeChinnss OG 5 5 5 6 0 bo 6-6 0 0 6 oO 6 6 8 oo eo oo 341.39
Soar lobar ailnnel@: 5 5 ¢ 6 656-5 5 6 560 OOo Bo OO $731.61
As Treasurer of the Walker fund, he reported receipts amounting to. . . . . . $1,226.97
ANUGC| GrqsNCliNS Che a 6 SoG 6 dO 6 56 696 5 6 6 6 6 oo oo o AMUSO
SHO anys DEE! o so o o 0 5 6 0 6 Go 6 0 0 6 0 a 5 06 a 0 ERIeYeb)
The balances in his hands belonging to the Bulfinch Estate and Walker fund amount-
COs Soa ace OReORN aes ns Poe CLL tena a Ghinom etc dr 6 44 im ea mitt otie
Balance due him on general appropriations, . . . .-. +... =... .... . 93s97.05
Actual balance in his hands of all the accounts rendered, . ..... =... =. $481.51
He presented estimates of the value of the property belonging to the Society at different times for pur-
poses of comparison; in May, 1862, the value was $85,001.49; in May, 1863, $133,497.80; in May, 1864,
$142,512.47; at the present time, $167,881.51.
These estimates included the buildings and furniture, but not the library or the cabinet.
In retiring, the Treasurer said he would not undertake to estimate the value of our prop-
erty, in the estate of our late benefactor, Dr. Wm. J. Walker. It was sufficient for him to
know that in resigning the office of Treasurer, he left to his successor the pleasing task of
showing on the next anniversary, means of usefulness beyond what the most sanguine
expectations could have looked for.
On behalf of the Building Committee, Mr. Bouvé announced that the full cost of the new
building, including commissions for architectural services, but not including the cases, had
been $94,593.80, and that the cases had cost $10,005.56, making the total amount
expended $104,397.16, a result with which the Society had reason to be gratified, consider-
ing that such a structure with the cases would have cost much more if the construction had
been delayed, by reason of the greatly enhanced prices of material and labor. With this
report presented as a final one, the committee asked the Society to accept the buildig and
discharge them from further duty, which was done with warm thanks.
By the Custodian’s report it appeared that much work had been done in the several
departments towards perfecting the arrangement of the specimens and adopting means for
the safety of such as were perishable. Not without great regret, however, did the members
learn of the extent of the injury done to the collections by the ravages of insects, and of the
absolute unfitness of the cases throughout the building for the preservation of the speci-
mens from dust and destructive vermin. Already had it become apparent that there yet
would have to be a large outlay in substituting other cases before the treasures of the
cabinet could be regarded as secure. It had not been recognized when those now in use
were constructed, that they should be made practically air tight in order to render them
suitable for what they were designed.
The Library now contained 11,191 volumes and pamphlets. The additions through the
year had been 1519, or between 11 and 12 percent. The greater part of the increase
was stated to have come from exchange with kindred institutions.
BOSTON SOCIETY OF NATURAL HISTORY. 107
The Botanical department had had during the year an accession of about 1800 New
England plants, the bequest of Mr. C. A. Shurtleff, and over 1200 German plants from
Col. Joseph Howland.
The Geological and Palaeontological department had received in exchange a series of
casts of large animals from Prof. Ward, a collection of fossils from the Andes presented by
Dr. Winslow, and a natural cast in Red Sandstone of the bones of one of the animals that
probably made impressions upon the rocks of the Connecticut river.
The most important and interesting addition to the collection during the year, was the
cast of the Megatherium presented by the late Joshua Bates of London, and which had
been mounted on a platform in the eastern part of the main hall. This was done by
Mr. Sceva with artistic skill, under the superintendence of Dr. James C. White, and it is
believed in a posture consonant with what the character and habits of the animal required.
The whole collection of the department was stated to consist of about 5250 specimens.
The Mineralogical collection was reported to have undergone a thorough revision
during the year. The specimens suitable for exhibition and arranged upon the shelves,
numbered about fifteen hundred.
The department of Comparative Anatomy and Mammals had received an accession of
eighty-four specimens in all, including seventeen skins of mammals. Skeletons of the
white whale, porpoise and dromedary had been set up, and much work done by the Cura-
tor, in making sections of skulls representing the various orders of mammalia. The
Curator again called attention to the unsafe condition of the skins in his department.
The Ethnological department had received from many donors, principally Commodore
Charles Stewart, Dr. C. F. Winslow, Mr. E. A. Brigham, Mrs. James Phillips, and the
Smithsonian Institution, articles from Japan, Siam, California, Mexico, and from local-
ities in Massachusetts, all of which had been placed in the collection.
The Ornithological department was represented to be in good condition, but the Cura-
tor complained sadly of the unsuitableness and imperfect construction of the cases.
The Odlogical collection had been increased by donations from Dr. Henry Bryant,
Dr. A. 8. Packard, Jr., John R. Willis, Esq., of Halifax, and Dr. Chas. T. Jackson, in all
numbering forty-five specimens.
The Conchological department had received a donation from Dr. Henry Bryant, of a
collection of shells from Cape St. Lucas, and from Dr. Gundlach of a series of Cuban shells
identified by him.
The Herpetological department was reported as containing about five hundred species,
half of which had been identified and arranged for exhibition, the others remained unar-
ranged for want of bottles, alcohol, Xe.
The Ichthyological department had received many additions, the donors being Prof. F.
Poey of Havana, the Lyceum of Natural History of Williams College, Dr. H. Bryant, the
late C. A. Shurtleff, Mr. S. M. Buck, Mr. W. A. Nason, Mr. W. H. Dall, Mr. E. T. Snow,
Mr. H. C. Whitten, Dr. C. F. Winslow, Dr. B. 8. Shaw, Mr. David Pulsifer, and the Curator,
F. W. Putnam.
The department of the Radiata had received donations from Dr. H. I. Bowditch, Dr.
Samuel Kneeland, John B. Willis, Esq., Dr. A. S. Packard, Jr., and the Essex Institute of
Salem. The Echinoderms had been fully catalogued and arranged, with the exception of
108 HISTORICAL SKETCH OF THE
the alcoholic specimens, which required bottles and fresh spirit before they could be put on
exhibition.
To the collection of Crustacea a large number of specimens had been added during the
year.
The collection of the Microscopical department remained about as before reported, but
few additions having been made to it.
It was sad to learn what indeed had been partially known before, that a large part of
the Entomological collection was well nigh ruined by the Anthreni, which, from want of
secure cases and continuous care, had been able to attack the specimens and accomplish
their destruction. The magnificent collection of Professor Hentz, purchased at considerable
cost many years since through private subscription, and being then altogether the finest in
country, might be said to be entirely destroyed, imasmuch as not one-fiftieth part of the
whole remained fit to serve the student for purposes of comparison and identification,
much less to place on exhibition. The same could be said of all the old collections pre-
sented to the Society by Dr. Gould, Dr. Harris and others.
How forcibly in this statement is brought to mind the truth often alluded to in these
pages, that it is worse than useless to form large collections of perishable objects unless the
means are at hand to command the accommodation and the unremitting care and watchful-
ness necessary for their preservation.
The late collection of Dr. Harris, purchased and presented to the Society by several
gentlemen after his death, and that of the late C. A. Shurtleff, which came to the Society
by bequest, were reported to be in fair condition. These were receiving proper attention,
and a large number had been put upon exhibition.
The whole number of specimens of every kind added to the cabinet during the year,
the Curator stated to be 21,155, of which half were insects, the bequest of Mr. C. A.
Shurtleff.
The very efficient Curator of Botany, Mr. Charles J. Sprague, much to the regret of
every member of the Society, resigned his office at the annual meeting, after a long ser-
vice of twelve years, during which time, he had brought order out of disorder, so far as
the herbarium of the department was concerned, and accomplished an amount of work in
identifying, arranging and poisoning the plants, of incalculable value to the Society, and
such as few persons in active business could have found time to do.
The thanks of the Society were unanimously voted to him, and also to the retirmg
Treasurer for their services in its behalf.
At the election of officers, Edward Pickering was chosen Treasurer, in place of Thomas
T. Bouvé ; Thomas T. Bouvé Curator of Mineralogy in place of William T. Brigham ; and
Horace Mann Curator of Botany in place of Charles J. Sprague. The office of Custodian
was left vacant, Mr. Scudder declining to act longer as such. In the August following,
Dr. A. 8S. Packard, Jr., was appointed by the Council Acting Custodian.
In October of this year, Dr. Henry Bryant announced his intention of presenting to the
Society a large collection of birds recently purchased by him when in Europe, and asked
that an appropriation of $4,000 be made, for the purpose of fitting up two of the rooms in
the second story for their reception. This was voted, and a committee consisting of Dr.
BOSTON SOCIETY OF NATURAL HISTORY. 109
Bryant and Dr. J. C. White, was appointed to attend to the proper construction of the
cases.
The collection, which was purchased by Dr. Bryant of Count Lafresnaye de Falaise for
the purpose of presentation to the Society, was the largest and most valuable private.one
in Europe. It contained nearly 9,000 specimens, all finely mounted, and from 4,500 to
5,000 species. Of these, 700 to 800 were from North and South America, many heing
type specimens described by the Count himself, an able ornithologist..
October 18th, Dr. Burt G. Wilder was elected Curator of Reptiles in place of Dr. Francis
H. Brown, who had resigned at the previous meeting.
A special meeting of the Society was called to consider the subject of creating the office
of Director of the Society, whose duty it should be to administer the affairs of the Museum
and Library, with the intention of inviting Dr. Jeffries Wyman to take such office.
With great unanimity of feeling and action it was voted to invite Dr. Wyman to fill
such office, with a salary of $2,500 per annum, clerical assistance in the administration of
the Library and such scientific assistance as might be necessary. To the great regret of
all the members, Dr. Wyman, after much consideration, declined to accept the position
tendered him. The office designed for him was not therefore created.
In December, the Treasurer announced the reception by him of the first instalment of
the Walker bequest, amounting to $100,000 in various stocks, and that it had now become
the duty of the Trustees to assume the management of this property.
1866. From the report of the Acting Custodian, Dr. Packard, made at the annual
meeting in May, we learn that there were twenty stated meetings of the Society, and
eight of the Microscopical section. These had been well attended, and the communica-
tions presented were of an interesting and instructive character. Forty-four Resident
and eleven Corresponding Members had been elected.
The Society had again resumed publication, after having omitted to issue any of its Pro-
ceedings for a year, and not having continued its Journal beyond Volume VII, printed
in 1863. In resuming publication it was thought best to change the form of the Journal
from octavo to quarto, and also to change the title to “ Memoirs.” It was also decided not
to furnish the Proceedings to members free of cost, as hitherto, the state of the Treasury
not warranting it. The first part of Volume I of the Memoirs, and nearly one half of
Volume X of the Proceedings, including the records of the meetings held in 1864 and
1865, were mentioned as having been issued.
The Treasurer’s report for the year showed that there had been an excess of expendi-
ture over receipts, not including borrowed money, of $2,890.19. The amount expended,
however, included $5,030.61, the cost of fitting up rooms with cases for the Ornitho-
logical collection.
The Librarian reported an accession of 981 volumes, parts of volumes and pamphlets,
of which 767 had been received in exchange for our publications. He stated that the
Library now contained 7622 volumes, 2097 parts of volumes, and 2462 pamphlets.
The Curator of Microscopy stated that the collection was in good preservation, though
not in such order as it should be. Donations had been received from Dr. 8. A. Bemis,
Dr. C. F. Winslow, and Messrs. C. G. Bush and J. S. Melvin.
110 HISTORICAL SKETCH OF THE
The meetings of the Section had been well attended, with advantage to its members and
to the Society.
The Curator of Comparative Anatomy reported the addition to his department of 2
skeletons, 1 parts of skeletons, 20 skulls, 4 skins of mammals, 5 mammals in spirit, and
miscellaneous 3; total 44 specimens. The donors were Drs. C. T. Jackson, A. A. Gould,
A. S. Packard, Jr., H. Bryant, B. J. Jeffries, S. Kneeland, and Messrs. H. Mann, C.
Kirkpatrick, J. K. Warren, and the Boston Milling and Manufacturing Company.
The specimens belonging to the department were represented to be in good order with
the exception of the skins.
The Curator of Ornithology reported the collection in good order. He stated that the
Lafresnaye collection, before mentioned as purchased by him for the Society, arrived safely
in the autumn of the previous year, and upon being unpacked had been found in perfect
condition. He himself had personally superintended the packing while in France. The
whole number of specimens received had been found to be 8,656.
The Curator of Ichthyology reported valuable donations to the department from the
Smithsonian Institution, of 54 specimens of North American fishes ; from Dr. A. 8. Packard,
Jr., of 10 species comprising about 100 specimens Labrador fishes, and from the Curator of
about 40 species comprising 1000 specimens from Lake Erie, and about 20 specimens from
Dr. B.S. Shaw, Messrs. C. J. Sprague, W. H. Dall, J. 8. Lewis, Samuel Hubbard, R. C. Green-
leaf and Caleb Cooke. The latter presented a fine specimen of the rare Leptocephalus
gracilis Storer, one of six collected by him on Nahant beach.
To the Entomological Cabinet about 600 specimens had been added, the principal donors
being Drs. H. Bryant, S. A. Bemis, C. F. Hildreth, A. A. Gould, C. T. Jackson, 8. Kneeland,
Jr., C. F. Winslow, Messrs: A. R. Grote, Samuel Hubbard, 8. H. Scudder and Prof. J. L.
Smith.
To the collection of Crustacea 440 specimens had been added. Of these, 50 species,
comprising about 340 specimens, represented the Crustacean fauna of Labrador, and 25
species, comprising 80 specimens, that of Maine. The Worms, now united with the
Crustacea in the department, included 55 species, of which 30, comprising 115 speci-
mens, were from the coast of Labrador; and 14, comprising 65 specimens, from Maine,
had been obtained by the Curator.
The donors to the department of Crustacea and Worms, were Drs. A. 8S. Packard Jr.,
B.S. Shaw, A. A. Gould; Messrs. E. R. Mayo, Samuel Hubbard, C. Stodder, F. G. San-
born, C. C. Sheafe; and Captain E. Smith.
The Conchological department had received about 1,500 specimens, many of them of
great value, the donors being Dr. A. S. Packard, Jr., Dr. Gundlach, Dr. Henry Bryant, Dr.
A. Chapin, Dr. C. T. Jackson and Mr. A. Coolidge.
The department of the Radiata had received from the Essex Institute 10 species, from
Dr. A. S. Packard, Jr., 250 specimens, from N. Appleton 3 species, and from Yale College
in exchange 59 specimens, comprising 34 species.
The Curator of Mineralogy reported the whole number of specimens on exhibition to
be about 2,000. The department had received donations from Drs. C. T. Jackson,
Henry Bryant, A. S. Packard, Jr., the Agassiz Natural History Society, Prof. Jeffries
Wyman, and Messrs. G. P. Huntington and W. H. Dall.
BOSTON SOCIETY OF NATURAL HISTORY. aati
The department of Botany had received very valuable donations of mosses and lichens
from the former Curator, C. J. Sprague, Esq., comprising about 500 species. Specimens
had also been presented by Drs. C. Pickering, C. F. Winslow, A. 8. Packard, Jr., 8. Knee-
land, Jr., and Messrs. Gunning, E. R. Mayo, H. M. McIntire, William Nelson and S. Wells,
Jr.
The Curator of Herpetology reported 69 additions to the department during the year,
the donors being Drs. A. 8. Packard, Jr., S. Kneeland, Jr., C. F. Winslow, and Messrs. §.
Hinckley, F. Andernach, D. White, and Captain Barber.
The Ethnological department had received a few donations from Dr. H. Bryant, A. E. L.
Dillaway and Horace McMurtrie.
To the Odlogical department there had been no additions.
In June, the sad intelligence of the death of Prof. Henry D. Rogers of Glasgow was
received.
Henry Darwin Rogers was born at Philadelphia, in 1809. He early became interested in
scientific pursuits, and while still quite young engaged as State Geologist of Pennsylvania
in an extended and very thorough survey of that State. His great work on the geology of
Pennsylvania, subsequently published, placed him at once in the front rank of American
geologists, and his later Report on the Geology of New Jersey was a valuable contribution
to science.
His eminent attainments led to his being invited, in 1857, to take the chair of Regius
Professor of Geology and Natural History in the University of Glascow, Scotland. He
accepted this position, which he filled to the time of his death, which took place on his
return from a visit to his native land, at his residence, Shawlands, near Glasgow, May 29th,
1866, in the fifty-eighth year of his age. He was a brother of Professor William B. Rog-
ers, and for several years was a resident member of the Society; while so, manifesting
much interest in its welfare. Valuable communications were frequently made by him,
reports of which may be found in the Proceedings.
In September a special meeting of the Society was called upon the occasion of the death
of one of its founders and most eminent members, Dr. Augustus A. Gould. This event
was announced by the President, and a committee, consisting of the President, Thomas T.
Bouvé and 8. H. Scudder, was appointed to report a suitable address upon the occasion.
A vote was unanimously passed that the Society attend the funeral, and four mem-
bers were appointed to act as pall-bearers in connection with those appointed by the Suf-
folk District Medical Society. The four were the President, Dr. C. T. Jackson, Mr. George
B. Emerson, and Mr. C.K. Dillaway. The services were at the Rowe Street Baptist Church,
of which he was a member, and were attended by a large concourse of friends.
At the regular meeting on Sept. 19th, on behalf of the committee appointed at the special
meeting the President read the following notice :
“Dr. Augustus Addison Gould, for many years one of the Vice-Presidents of this Society,
died at his home on the morning of the 15th day of September. By this sad and sudden
event, the Society loses one of its most honored and respected associates, and science a
disinterested and truthful worker. From the beginning of our existence to the day on
which he died, his hand was never weary in our service. Through many years we have
leaned on him for his wise counsel ; his thought and labor more than any other have helped
112 HISTORICAL SKETCH OF THE>
us in our progress, and it is to his name and fame at home and abroad, that we are very
largely indebted for what we most prize in our own. It is not we alone that suffer from his
death. His interests were broad and catholic and embraced whatever was good and excel-
lent, and his helping hand was not withdrawn whenever sought, whether in behalf of the
interests of science, education or humanity. The loss to these will be truly great. For all
his disinterestedness he was not without his reward. The profession of which he was so dis-
tinguished an ornament gladly bestowed upon him its highest gifts, and the community of
which he was so worthy a member gave love and honor for his many graces of character
and for his work in life so full of christian excellence. With head and hand still busy and
with a heart still earnest in his chosen work and still warm in all his relations to friends
and kindred, it was God’s will that he should pass away. The Society would express its
gratitude for the example of his life, and offers its deepest sympathy to those to whose
hearts his death brings so much sorrow.”
Dr. Wyman then stated that a more full notice of the scientific labors of Dr. Gould
would be presented by the committee at a later meeting.
Dr. C. T. Jackson followed with remarks upon Dr. Gould’s character and work, passing
in review the various stages of his scientific career; and Mr. C. K. Dillaway read an
interesting autobiography of him which had been written in 1850, and which he had in his
possession as secretary of his college class.
It was then voted that a copy of the notice of the committee be furnished to the press,
and that out of respect to the memory of our lamented friend and associate the Society
adjourn without the transaction of business or the hearing of scientific papers.
A considerable portion of the obituary notice of Dr. Gould, prepared by Dr. Wyman in
behalf of the committee and published in the Proceedings of the Society, Volume IX,
page 188, is here given:
Augustus Addison Gould was born in New Ipswich, New Hampshire, on the 23d of April,
1805. His early life was passed there, and as soon as he was old and strong enough to
labor, the larger part of the year was given to his father’s farm, and the rest to the common
school. At the age of fifteen he took the whole charge of the farm; nevertheless a part
of the year was devoted to study, and some progress was made in the classics. By the
careful husbanding of the odds and ends of time and a year’s teaching at an academy, he
was prepared to enter college, and entered at Cambridge in 1821. With his college life
came a struggle, the forerunner of many such by which his strength was to be tried. He
had already come to know something of the barrier which limited means had put between
himself and the things he aspired to, and now this assumed larger proportions, such as to
most persons would have been disheartening. College duties and exercises demanded his
time, nevertheless his education must be paid for, and he must do largely towards earning
the means;: and so by strict economy, by performing various duties for which indigent
students received compensation, and also by hard work in vacations and on those days
which others gave to relaxation, he says he at length fought his way through, and attained
to respectable rank.
In college he was noted among his classmates for industry, and it was there, too, that his
taste for natural history began to show itself. He became familiar with the most of our
native plants and to the end of life never lost his love for them. After leaving college, he
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BOSTON SOCIETY OF NATURAL HISTORY. 113
held the office of private tutor in Maryland, and at the same time began the study of
medicine. The rest of his pupilage was passed in Boston, and the last year of it at the
Massachusetts General Hospital as house student. He was graduated in medicine in 1830,
and at once began the practice of his profession, having given good grounds to his friends
for expecting future eminence. But his struggles with poverty were not yet ended. Until
his profession could yield him a support, he was obliged to go out of it, to earn the neces-
saries of life. To this end he undertook burdensome tasks; one of them, the cataloguing
and classification of the fifty thousand pamphlets in the library of the Boston Athenzeum,
was Herculean, as any one may see who will take the trouble to look over the four large
folio volumes he wrote out, monuments of his patient industry and handiwork, and for
which he got only a pitiful return.
The study of natural history was nearer to his heart than all other pursuits, and to that
he could always turn, and did, whenever he could command a few spare hours or moments
to do so. Asa matter of course, he became a member of this Society. This was soon
after its organization, and to the time he died he labored for us without stint. When his
studies began to assume a methodical shape, his first investigations were in the class of
insects, of which, at one time, he had a large collection. Among his first published works
was a monograph on the Cicindelae of Massachusetts, printed in 1834, and in 1840 he pub-
lished an account of the American species of shells belonging to the genus Pupa, in regard
to which he found much confusion. These shells are very small, and Mr. Say, who named
all the species previously described, gave no figures, and consequently naturalists fell into
error. “Ihave received from our best conchologists,’’ Dr. Gould says, “a single species
under four of the names that Mr. Say applied to as many different species.” Dr. Gould
then points out how, by the use of the microscope, and a careful study of their minuter
details, the classification of them might be improved. The paper was illustrated by about
thirty figures carefully drawn by himself, with the aid of the microscope.
In 1841, he read before this Society a paper entitled “ Results of an examination of the
species of shells of Massachusetts, and of their geographical distribution.” This is the
more noteworthy since the geographical distribution of animals had at that time attracted
but little attention, and none amongst us. Now it involves one of the most important
zodlogical problems.
Dr. Gould also points out in this paper the influence of shore outlines, and shows from a
comparison of species, that Cape Cod, which stretches out ito the sea in a curved direc-
tion some forty or fifty miles, forms to some species an impassable barrier. Of two
hundred and three species, eighty do not pass to the south, and thirty have not been found
to the north. In the same paper he calls attention to the importance of the fact that cer-
tain species appear and disappear suddenly, and of the necessity, in order to construct a
correct catalogue of the shells of any region, to extend observations through a series ot
years, a consideration by which many naturalists, even of the present day, might profit.
One of the first results of the joint action of the members of this Society, and of which it
has more reason to be proud than any other, was the part taken by some of them in the
series of admirable reports on the natural history of the State, presented to the General
Court in compliance with a legislative enactment. The report on the Invertebrate Animals,
excepting insects, was by Dr. Gould.
114 HISTORICAL SKETCH OF THE
The Molluses were Dr. Gould’s favorite subject for study, and his attention was chiefly
given to them. Up to this time, few if any attempts had been made to give as complete a
zovlogical survey as practicable of any particular region of the United States. As regards
the Molluses, the descriptions of Say, Conrad and others, pioneers in conchology, pertained
more to the Middle and Western States, than to New England. Their writings were frag-
mentary and scattered through the narratives of travels, journals of science, and even news-
papers. It was no small labor, therefore, to become acquainted, merely as a preparation
for his task, with the writings of his predecessors. To make his report as complete as
possible, and to ascertain what changes in the classification of Molluscs recent important
progress growing out of the study of them would indicate, he opened correspondence for
information and exchanges with European naturalists imterested in the same branch of
study, who obligingly and courteously lent their aid, and out of this correspondence grew
up long continued friendships.
The report fills a volume of nearly four hundred pages, illustrated by more than two
hundred figures skillfully drawn from nature by himself. ‘“ Every species described,” he says,
“indeed almost every species mentioned, has passed under my own eye. ‘The descriptions
of species previously known, have been written anew, partly that they be more minute in
particulars, and partly with the hope of using language somewhat less technical than is
ordinarily employed by scientific men.” The number of species described was about two
hundred and seventy-five of Molluscs and nearly one hundred of Crustaceans and Radiates.
As a contribution to zoélogical science, this report gave him an honorable name and an
eminent position among the naturalists of Europe and America,
Dr. Gould edited the admirable work entitled “The Terrestrial Air-breathing Molluses
of the United States,” prepared, but left unfinished at the time of his death, by his intimate
friend, Dr. Amos Binney, formerly the respected president of this Society, and whose name
we hold in grateful remembrance, not only for his contributions to science, but for the
munificent bequest which fills so large a space on the shelves of our library.
In 1848 he was associated with Prof. Agassiz in the preparation of the Principles of
Zoology.
His largest and most important contribution to natural history was the description of the
shells of the United States Exploring Expedition. This was prepared under circumstances
somewhat embarassing. The collection was not made by himself, but by the late Capt.
Joseph P. Couthouy, well remembered as one of the most zealous and active members of this
Society. Capt. Couthouy had drawn up full notes on the external characters of the soft
parts, habits, geographical description, and other important points. Before the voyage
was completed he left the expedition, but the notes and collections were sent to Washing-
ton. The former were unaccountably lost, and no trace of them was found. The collec-
tions, when they came into the hands of the Navy Department, were repacked by incom-—
petent hands, the arrangement of them disturbed, labels in many cases lost, and the whole
thrown more or less into confusion. Dr. Gould was called upon to save this wreck, but in
accepting the task was obliged to submit to various arbitrary restrictions, and to leave
undone many things he deemed of much importance.
The Otia Conchologica was the last of his primted volumes, but this was merely a
reprint in a condensed form of the descriptions of species of shells previously published
BOSTON SOCIETY OF NATURAL HISTORY. 115
separately in different works. Besides the works already mentioned, there is a long cata-
logue of communications made to the Boston Society of Natural History,which may be
referred to as showing that he did not allow himself to become a mere specialist, but kept
his mind awake to the relation of individual forms to higher and more general truths.
We must not forget that Dr. Gould was a member of the medical profession, and that
his time was of necessity chiefly devoted to this, while the scientific labors we have been
considering were the yield of spare moments made useful. He was an active member of
the medical societies of this city and of the State, and held offices of trust in them. The
Massachusetts Medical Society conferred on him the honors which it has to bestow upon
its fellows. In 1855 he delivered the annual address, which was marked for the soundness
of its views and the characteristic clearness and elegance with which they were presented
He took for his text the advice of: Harvey to the Royal College of Physicians of London
when he founded the annual oration which bears his name, and in which, among other
things, he enjoins upon the orator “an exhortation to the members to study and search
out the secrets of nature by the way of experiment.’ Dr. Gould was elected president
of the Medical Society, and his term of office ended within a few months of his death. He
was for several years one of the physicians of the Massachusetts General Hospital, was an
efficient member of the Boston Society for Medical Improvement, where he often com-
municated valuable observations, and took an active part in its discussions. He labored
much and long in preparing the vital statistics of the State from the official returns.
At one of the meetings of the National Academy of Sciences, of which he was amem-
ber, he presented an important paper on the distribution of certain diseases, especially
consumption, in reference to the hygienic choice of a location for the cure of invalid
soldiers.
As a citizen, Dr. Gould made a principle of going out of the ordinary routine of life to
lend a helping hand wherever it was desired, and he could. He served the public in many
capacities ; in the religious society of which he was from early life a member, and in the
public schools, where he took an active interest in all attempts to improve the ways and
means of instruction. He from time to time gave public lectures, and although in this
capacity he could not be said to be brilliant or highly accomplished, yet his unostentatious
manner and simplicity, his knowledge of his subject and hearty interest in it, always
gained him attentive listeners, who went away instructed.
In his temperament he was genial, and drew friends around him, retaining the old and
attracting the new. He came to the social gathering with joyous face and kindly feelings.
His love for natural scenery was genuine and hearty, and whatever personal enjoyment
came from this source, it was always enhanced if others partook of it with him. There
are too many naturalists who stand in the presence of nature all their days, but see her
not. ‘To them the world offers nothing but the forms they would technically describe and
arrange in their cabinets. Take away this object and all becomes a waste, for they are
neither warmed nor enlivened by the world around them. Not so with our associate; no
one toiled more industriously than he over individual forms and specific descriptions ; but
all this aside, every aspect of nature touched him to the innermost. Those who have
been intimate with him know how his face would light up while in the presence of the
least as well as of the greatest natural objects! the flower of a day, or the sturdy tree
116 HISTORICAL SKETCH OF THE
that had known its centuries of life, the quiet or the grander scenes of the world. His
emotions were not those of an enthusiast, but rather came of a clear perception and calm
contemplation of the things around him, and of his own responsive nature.
His life, all too poorly and inadequately represented in this sketch, was throughout a
consistent one, and to the end each day was full to the round. He was still endeavoring
to improve what had been done before, and looking forward to the accomplishment of new
and better ends, when suddenly it was closed. He had been less well than usual; on the
afternoon of September 14th, 1866, he manifested the usual symptoms of an attack of
Asiatic cholera, soon after fell into a state of collapse, and on the following morning just
before the dawn, he died.
The office of Custodian, it will be remembered, was created in May 1864, and Mr. Sam-
uel H. Scudder was elected to fill it. He held it one year only, when it became vacant
and remained so until October 3d of this year, Dr. Packard performing its duties tempora-
rily by appointment of the Council. The great importance of having the constant
services of some able person who would at the same time perform the special duties
appertaining to this office and also act as Librarian and Recording Secretary, led the Com-
mittee on nominations to propose Mr. Scudder again to the Society for Custodian, and he
was elected. An arrangement was then made by the Council with him, by which it
was agreed that he should give his undivided attention to the wants of the Society through-
out the year, excepting such time as might be allowed him for a vacation of from one to
two months, and that he should perform all duties of Custodian, Librarian and Recording
Secretary. The Society to provide permanent assistance in the Library department as
heretofore, and also in the special manipulation of specimens which require immediate care
for their preservation.
Before the death of our lamented associate, Dr. Gould, there had been some negotiation
with him for the purchase of his cabinet of shells, as he had expressed a willingness to
part with it to the Society ata price much less than he would be willing to accept from
any other party, as he desired it should finally have a place in the Museum. The only
reason why the purchase had not been consummated was that Dr. Gould first wished to put
it in good order, and to properly label all the specimens. This work he did not find leisure
to do, and consequently much time of an able conchologist would be required to perform
it. It wasdeemed therefore inexpedient to compete with others who offered more than
the Society could afford to pay. This was more to be regretted because of its having been
the collection of one so much revered by the members, and because it contamed many type
specimens of species described by him. A large number of the species were, however,
already in our cabinet.
In November, the Society, upon motion of Dr. J. C. White, passed resolutions expressing
appreciation of the value of the gift of Mr. Peabody to Harvard University for the founda-
tion of a Museum and Professorship of American Archaeology and Ethnology, and
great pleasure in the recognition on his part of the relation of this Society to that impor-
tant department of Science in the selection of its President for one of the Trustees of the
munificent endowment made by him.
By the terms of this donation, the President of the Society is, ex-officio, one of the
Trustees.
BOSTON SOCIETY OF NATURAL HISTORY. Late
At the meeting of Nov. 2d, Mr. Thos. T. Bouvé was elected Vice-President of the Soci-
ety, to fill the vacancy made by the death of Dr. Gould.
A Section of Entomology was formed at the meeting of Nov. 28th. Members of the Soci-
ety only to be members of the section, the President of the Society to be ex-officio President
of the section, and the Recording Secretary of the Society Recording Secretary of the
section. The meetings to be held on the evening of the 4th Wednesday of each month.
1867. In January of this year, Palaentology, which had been combined with Geology,
was raised to a separate department, and Thomas T. Bouvé was made its Curator. Wm.
T. Brigham was chosen Curator of Geology.
Early in this year the Society was the recipient of a munificent bequest from Miss Sarah
P. Pratt. This lady had long been interested in the study of conchology, and had made a
large collection of shells obtained from every quarter of the globe, many of them being of
rare species. The whole cabinet, consisting of more than 4000 specimens, was bequeathed
to the Society, together with her library and works on conchology, and the sum of $10,000
to be held as a fund for the increase and maintenance of the department devoted to that
science. -
As with individuals, so with institutions, events often succeed each other of the most
diverse character, those of a joyful following such as are painful, and the reverse. Nota
week had elapsed after the announcement of the bequest above-mentioned, when news was
received of the death of one of the great benefactors of the Society, Dr. Henry Bryant.
At a meeting held on the 20th of February, after some remarks by Mr. Bouvé expressive
of the feeling that pervaded and saddened all hearts, a committee consisting of Drs. S. L.
Abbot and J. C. White, and J. E. Cabot, Esq., was appointed to prepare a notice of the
professional and scientific life of the deceased.
Tn behalf of this committee, Dr. 8. L. Abbot subsequently read before the Society a very
full and discriminating notice of Dr. Bryant, which appeared in Vol. XI of the published
Proceedings, and from which the following brief abstract is given.
Dr. Henry Bryant was born in Boston, May 12, 1820. He entered Harvard University
in 1856, graduated in 1840, then studied medicine in the Tremont Medical School, from
which he received the degree of Doctor of Medicine in 1843. He afterwards studied in
Paris and subsequently joined the French army in Africa as a volunteer surgeon, in which
capacity he served during the winter campagn of 1846. He returned home in 1847 and
commenced the practice of his profession. His ,health failme him he was obliged to give
up practice, and he ever after devoted himself to the study of Ornithology, which had always
been a favorite pursuit with him. The precarious state of his health compelled him to
take a great deal of outdoor exercise, and his active, energetic temperament led him often to
the most distant parts of the country for the purpose of collecting specimens of Orni-
thology. He had a singular power of endurance, and invalid as he was, a most. stoical
indifference to considerations of personal comfort on these expeditions, which sometimes
lasted for months, many of them being out of the country among the West India Isl
On the outbreak of the civil war, he offered himself as a candidate for the position of
assistant surgeon in the regular army, and after a very severe examination was accepted,
but subsequently was appointed surgeon of the 20th regiment Massachusetts Volunteers
being promoted to be brigade surgeon, in September, 1861. He was afterwards Med.
ands.
118 HISTORICAL SKETCH OF THE
ical Director in the army of General Shields, in the Shenandoah Valley. While engaged
in this service he was severely hurt by his horse falling upon him, and confined to his bed
for a portion of the many months during which he suffered from his mjuries. Yet,
although it was even thought for a while that he might have to undergo amputation of his
foot, he continued on duty all the time, and in the midst of his sufferings organized the
military hospitals at Winchester. In August, 1862, he took charge of the Cliffburn hos-
pital near Washington, and in December, 1862, was ordered to assume the care and oper-
ation of the Lincoln hospital, in Washington, which under his thorough and most excellent
administration, was regarded as a model hospital. But close confinement and excessive
mental labor broke down his health and strength, and he was eventually compelled in
May, 1863, to resign his commission. His faithful service in his country’s cause very
nearly cost him his life, so utterly exhausted had he become by unremitting work.
After the close of the war he went to Europe twice, and in December, 1866, visited
Porto Rico. For some weeks he travelled about the island, suffering extremely from ill
health all the time, but working at his favorite pursuits unintermittingly, until the Ist of
February, when he was taken with what proved to be his last violent attack of illness,
while on an expedition in the country, and died the next day.
Dr. Bryant was no common man. He was peculiar in certain ways, but much of this
peculiarity arose undoubtedly from his ill health and bodily suffermg. His thorough-
ness, intellectual, honesty, and faithfulness to duty were marked characteristics through
his whole career. He was as true as steel, through and through genuine, and with far
more kindliness and wider sympathy than he ever liked to show. Dr. Bryant was elected
a member of this Society in November, 1841. He served as Cabinet-keeper for a part of
1843, and took charge in 1855 of the Entomological collection for a time. From 1854 to
the time of his death, he was Curator of Ornithology.
He was a most munificent friend to the Museum of the Society, his donations embracing
reptiles, fishes, crustaceous insects, minerals and birds. His most valuable gift was the
magnificent Lafresnaye collection of birds, which amounted to nearly nine thousand fine
specimens. Extensive pecuniary aid was also received from him whenever the purchase
of collections was desirable for the museum.
Dr. Bryant married in 1848, Miss Elizabeth B. Sohier, daughter of W. D. Sohier, Esq.,
of Boston.
In March of this year Professor Baird, of the Smithsonian Institution, expressed a strong
desire that the Society should codperate with that imstitution in extending the system of
explorations undertaken by it, in return for which the Society should receive the first
choice among the duplicates of objects cf natural history. He desired a yearly appropria-
tion of $500. ;
There was a unanimous wish on the part of the Council to act favorably upon the propo-
sition which resulted in a vote: “That the sum of $500 be placed at the disposal of the
Assistant Secretary of the Smithsonian Institution for the purpose mentioned, and that the
Secretary intimate the desire of the Council to assist further at a future time.”
April. The necessity of refraining from any account of the scientific papers brought
before the Society or of the discussions that took place at the meetings, in order to con-
fine this sketch within reasonable limits, has often prevented even a reference to much of
BOSTON SOCIETY OF NATURAL HISTORY. 119
public interest. There was one subject, however, brought before the meeting of April
17th of this year, which is here mentioned, because there is yet quite as much diversity of
opinion upon it as at that time, and some readers may be interested to learn where to look
for the views of two distinguished members of the Society whose investigations led them
to diametrically opposite conclusions. This subject was practically what was likely to be
the result of the introduction here of the common house-sparrow of Europe. Dr. Charles
Pickering ably presented his ideas on the question, maintaining that nothing but evil would
follow their increase ; that its habits were of the most destructive character and that it had
been the enemy of mankind for five thousand years. Dr. Thomas M. Brewer, on the
other hand, at a subsequent meeting, defended the bird from the charges preferred against
it, claimed that it had already accomplished much good in the destruction of insects, and
cited the authority of many authors in proof of its great usefulness. The papers pre-
sented were meagrely reported, but may be found in the eleventh volume of the Pro-
ceedings.
The establishment of the Museum of American Archaeology and Ethnology at Cam-
bridge through the munificence of George Peabody, Esq., gave rise to the question whether
it was worth while for the Society to continue its department of Ethnology. After much
consideration it was judged best to abolish it, and this was accordingly done by a vote of
the Council. The collection Was afterwards presented to the Peabody Museum of American
Archaeology and Ethnology at Cambridge.
Some of the rooms of the Museum which had remained unfinished were at this time
prepared for use by laying the floors and building cases. The lecture room was also
finished.
Just before the annual meeting the Society was the recipient of a bequest from a former
patron, Mr. Paschal P. Pope, of $20,000. This large sum was most gratefully received.
Mr. Pope had been a successful merchant and had accumulated a large fortune, the greater
portion of which he bequeathed to various public institutions. He had the reputation of
being a highly honorable man, and died at an advanced age, much respected by all who
knew him.
At the annual meeting, May Ist, the Custodian reported that there were now held every
week meetings of the general Society, or of the sections of Entomology and Microscopy.
There had been thirty-five meetings of the Society; forty-four communications on various
branches of natural history had been read; forty-one Resident, seven Corresponding, and
four Honorary Members elected. The first number of the Memoirs in quarto had been
issued, and the first quarter of Volume XI of the Proceedings completed. The museum
had been open one hundred and one days, with an average of three hundred and twelve
visitors per diem.
The Library had increased in size, mainly through the efforts made to effect exchanges
for our publications by the Librarian when in Europe. It will perhaps surprise readers to
learn that an amount equivalent to 400,000 octavo pages of the publications of the Society
had been sent away during the year.
The donations to the cabinet had been less numerous than usual. Including the bequest
of Miss Pratt, there’ had been added 20,202 specimens. Among these and worthy of
mention, was a valuable collection of volcanic specimens from the Hawaiian Islands, pre
sented by Mr. Wm. T. Brigham.
120 HISTORICAL SKETCH OF THE
The Treasurer’s report showed receipts from all sources, of $13,281.23, and expenditures
of $11,022.93.
There had been no essays offered in competition for the annual Walker prize.
The changes in the officers at the election were in Alpheus Hyatt beg chosen Curator
of Palaeontology in place of Thomas T. Bouvé; J. Eliot Cabot, Curator of Ornithology,
in place of Dr. Henry Bryant, deceased ; and Edward 8. Morse, Curator of Conchology, in
place of Alpheus Hyatt.
At a meeting in June of this year, the death of Thomas Bulfinch, long a member of the
Society, and for six years its Recording Secretary, was announced by the Rey. R. C. Water-
ston, with appropriate remarks upon his life and character.
Mr. Bulfinch was deservedly held in great esteem by all the members of the Society.
His faithful devotion to his duty, his genial manner, his loving and sympathetic nature,
all conspired to endear him to them and to make his loss deeply felt, particularly to those
with whom he was associated in the work of the Society in earlier years.
On motion of Dr. C. T. Jackson, Mr. Waterston was requested to prepare a fitting trib-
ute to the memory of the departed for the Proceedings, which he did by an exceedingly
interesting sketch of his life and character, and which may be found in Volume XI.
The following is a brief abstract from this paper.
Thomas Bulfinch was born July 14th, 1796, at Newton, Mass. He was the second son
of Charles Bulfinch, whose reputation as an architect at that day stood among the highest
in the profession. Graduating from Harvard University in 1814, he numbered among his
classmates Prescott the historian, the Rev. Dr. Greenwood and the Rey. Dr. Lamson.
After leaving college, Mr. Bulfinch was chosen usher in the Latin School. Here he
remained fourteen months, when feeling no very strong inclination for either of the profes-
sions, he entered upon the active duties of a business life. Two years were thus spent in
Boston, when he was led to remove to Washington, where his father was engaged as archi-
tect in the erection of the Capitol. Here he resided seven years, when in 1825 he returned
to Boston, entering into a copartnership with his relative, Mr. Joseph Coolidge. This con-
nection continued until 1832, when he was chosen to a responsible position in the Mer-
chant’s Bank, which he held until his death, a period of thirty years.
Devoted as he was to the duties devolving upon him as a man of business, he had tastes
aside from this, yet more congenial to his nature, which he followed with quiet but persis-
tent enthusiasm. Thus it was that he became an active member of the Society and its
Recording Secretary.
His mind balanced for a time between science and literature. There was that in both
which awakened his admiration and exerted an attractive power. At length, literature
gained the ascendancy, though science always continued to possess a peculiar charm.
In 1855 he published the Age of Fable, in which he relates the stories of Mythology,
Greek and Roman, in a way to render them attractive to the lovers of general literature.
This was followed in 1858, by a volume on the Age of Chivalry, or the Legends of King
Arthur, presenting in the same spirit pictures of a later age. In 1863 he published the
Legends of Charlemagne, or the Romance of the Middle Ages.
There were other works of less importance, all of which were the fruit of care, written
in hours rescued from the pressure of active business.
BOSTON SOCIETY OF NATURAL HISTORY. it
Mr. Bulfinch devoted much time to social intercourse among a circle of friends who
highly appreciated his worth. Modest he was, but not morose, for a more genial and gen-
erous nature could not be found. Keenly sensitive to the gentle sympathies of life, he
truly lived in his affections, and never was he weary of extending kindness, not only to
companions and friends who valued his friendship, but to the needy and tried, young or
old, whoever they might be.
Much more might be said of Mr. Bulfinch, but it is not needed. His excellences were
familiar to all. His quiet and respectful manner, his gentlemanly consideration, his
conscientious fidelity, his love of learning, his Christian trust and faith; these were an
indispensable part of himself.
Members of the Society and other visitors to the Library will recall with pleasure, not
unmixed with sadness, a very agreeable young lady of great excellence who at this period
and for several years was an assistant in the Library. Her beauty of person, her vivacity,
her pleasing address and manners, combined with her intelligence and readiness to meet all
the requirements of her position, made her a general favorite. She was the daughter of
the Rev. Mr. Blaikie, a Presbyterian clergyman of the city. She left the service of the
Society because of her marriage, and soon after died, to the great grief of all who had been
associated with her.
It was quite apparent before the close of this year that further assistance than what had
hitherto been employed was required in the Museum, if the collections were to be pre-
served from ruin. It was therefore voted in Council to employ Mr. F. G. Sanborn as
assistant in the Museum from the Ist of January, to act under the direction of the Cus-
todian.
Two courses of lectures were authorized by the Society for the winter of 1867-8.
One given by Edward $. Morse, consisting of six on the natural history of the mollusca,
or shell fish, on Saturday afternoons, commenced Dec. 7th, and continued weekly. The
other by Horace Mann, consisting of eight, on structural botany, commenced March 7th.
The lecturers were paid $25 for each lecture, and an admission fee of $1 for the course
was charged those who attended. The cost of giving these lectures exceeded the amount
received from the sale of tickets, $114.37.
1868. From the Report of the Custodian, made at the annual meeting in May, we
learn how much had been done durmg the year towards preparing unfinished portions of
the building for use. Besides the lecture room, in which for the first time the annual
meeting was held, the rear library room had been furnished for use and was now occupied,
two exhibition rooms fitted up, and new cases built for several of the departments. A
printing office had been prepared in the basement, and the Janitor’s apartments remod-
elled.
There had been twenty general meetings of the Society, seven of the Section of Micro-
scopy, and nine of that of Entomology. The average attendance at the general meet-
ings was about forty, and at each of the sections about nine.
There had been eighty-six communications made, of which fifty-six were at the general
meetings of the Society, the others bemg at meetings of the Sections. One Honorary,
two Corresponding, and forty Resident Members had been elected.
122 HISTORICAL SKETCH OF THE
There had been issued of the publications of the Society, the second and third parts of
the Memoirs, and the fourth and concluding part of the first volume was in press. The
eleventh volume of the Proceedings had been completed, and a new edition of six signa-
tures of the eighth volume printed.
Great additions to the Museum had been made during ‘the year, the most important
being a very fine series of humming birds, embracing over 700 specimens, com-
prising about 500 species, from Mrs. Henry Bryant; a large collection of eggs, number-
ing 1500 specimens, comprising more than 550 species, from the same lady; a collection
of more than 2000 Guatemalan birds purchased; a large donation of several thousand
rock and fossil specimens from Dr. C. T. Jackson; and a collection of skulls from Arizona,
given by Dr. J. W. Merriam.
The collections of the several departments were reported generally to be in good con-
dition, though that of Entomology had suffered some injury from the ravages of Anthreni.
These pests, had however, been entirely eradicated, and it was hoped that by constant vigi-
lance they would be prevented from doing farther harm. Some remarks made by the
Custodian before closing his report, are worthy of notice. He said, in referring to the
erowth of the Society: “The small collections received at first had a certain charm of
novelty which attracted the lovers of nature, and were undoubtedly a principal means of
sustaining the interest of its members; but the times have greatly changed ; for while the
number of members who give their personal attention to the care of the collections is
scarcely greater than in former years, the collections have increased an hundred fold, and
the ratio of increase does not seem to lessen. Now it is manifestly impossible for such a
state of things to continue, if the Museum is to maintain an appearance creditable to the
name and honor of the Society. On this account several years ago a regular Custodian
was appointed ; for the same reason the Council found it necessary, within a few months, to
engage the services of a regular assistant, whose labors have been already felt in every
department. On similar grounds, I believe that im a short time, the services of many
assistants will be indispensable; indeed I am convinced that at least one or two more are
needed at the present moment, and that from this time forward the greater part of the
work of the Museum should be done by regular salaried assistants, under the direction of
the officers.”
The report of the Treasurer showed, including all sources of income available for gen-
eral purposes, an excess of expenditures over receipts of $208.05.
Dr. J. C. White, notwithstanding urgent solicitation that he would continue to hold the
position in which he had faithfully served the Society, positively declmed reélection. He
had been Curator of the department of Mammals and Comparative Anatomy for nearly
ten years, devoting a considerable portion of his time to laborious work upon the collec-
tion, not a small part of which his wise and skilful management saved from destruction.
He was, moreover, very efficient in obtaiming specimens for the department, thus contrib-
uting to its large increase.
At the election, all the officers were re-chosen excepting Dr. White. No one was sub-
stituted in his place.
It may be remembered by the reader that in 1857 permission had been given to mem-
bers to bring with them to the meetings ladies of their families and such others as they
BOSTON SOCIETY OF NATURAL HISTORY. 123
might choose to invite, and that the temporary effect of this at least had been beneficial,
leading to a better attendance on the part of the members themselves. As stated subse-
quently, there is no record of the permission having been withdrawn, but as ladies ceased
to attend, it is fair to presume they did so from lack of interest in the proceedings. Twenty
years had elapsed, and again an effort was made to have their attendance. The Council at
a meeting in June of this year voted: “That members have permission to invite ladies to
attend the second meeting of each month.”
Previous to the summer recess the Lecture Committee of the Council reported in favor
of having three courses of lectures during the next succeeding winter, one course of four
by Dr. Jeffries on the anatomy of the eye, one by Mr. W. H. Niles, of ten or twelve on the
Geological History of North America, and one by Mr. Wm. T. Brigham on some botanical
subject. The report was accepted and adopted.
In October Dr. Burt G. Wilder resigned his position as Curator of Herpetology, being
about to remove from the State.
November 18th, Dr. Chas. F. Folsom was elected Curator of Comparative Anatomy, and
J. A. Allen Curator of Herpetology.
In November the death of Mr. Octavius Pickering, long a member of the Society and one
of the founders of the Linnaean, was announced with appropriate remarks by the President.
At the next meeting, the Society was called upon to deplore the loss of another member
by the death of Mr. Horace Mann, the youngest officer in its service, Curator of Botany.
The remarks upon the occasion by Mr. Wm. T. Brigham, his intimate friend, were very
appropriate and the following particulars are abstracted from them.
In his earliest youth Mr. Mann imbibed a love of nature from the teachings of his father,
and in opposition to the advice of many of his friends who wished him to have a collegiate
education, entered the school of Prof. Agassiz as a student of zodlogy and geology. He
was at the same time deeply interested in botany, and it was from this taste that his friend-
ship with the speaker commenced. In company they visited the Hawaiian Islands and
studied the peculiar flora of that group. Soon after his return -to Cambridge, Mr. Mann
was appointed assistant to Dr. Gray, and subsequently instructor in botany in Harvard
College. Besides the work of arranging the Thayer Herbarium, and of aiding Dr. Gray
both in preparing material for his classes, and in revising proof for his two botanical man-
uals, he worked steadily in spare hours, often late into the night, upon his Hawaiian col-
lections, many thousand specimens of which were determined, labelled and distributed.
His enumeration of Hawaiian plants, which has given him a good botanical reputation,
was published by the American Academy of Arts and Sciences, of which body he was
elected a fellow on the very evening of his death. As the result of these Hawaiian
explorations, five new genera and sixty-seven new species were added to the flora.
Early in October, Mr. Mann yielded to the solicitations of his friends, and resigned his
college classes; but the worst forms of pulmonary complaint had gone too far to be
checked; and although at times his recovery was hoped for, he continued to fail rapidly,
and passed away on the evening of November 11th.
1869. Mr. Edward S. Morse, then residing in Salem, was engaged to work on the
shells of the Pratt collection, for three alternate days of each week through the year, the
other three days being devoted to work on the collections of the Peabody Academy.
124 HISTORICAL SKETCH OF THE
A new arrangement was also made with the Custodian, by which he was to give his
undivided attention to the duties of the position through the year, with the exception of
five weeks between the first of May and the first of November, and three weeks between
the first of November and the first of May, he to have permanent assistance in the
Library and Museum.
Upon application to the City Government, two police officers were detailed for duty at
the Museum on public days of exhibition.
An idol obtained in purchasing other objects from Guatemala was, by vote of the Coun-
cil, presented to the Peabody Museum. Authority was also obtained from the Marine
Society by which the antiquities formerly given by that institution were transferred to the
same Museum.
The Trustees of the Society, after calling attention to the greatly increased expenses of
the year, and mentioning the necessity arising therefrom to sell stocks to the amount of
$4,000 to meet indebtedness, made a protest against such large expenditures.
The Council voted that authors should be allowed twenty-five copies of their productions
from the publications of the Society, free of expense.
From the Report of the Custodian at the annual meeting in May, and doings of the
Society for the year ending May, 1869, may be learned as usual much of interest. There
had been twenty general meetings of the Society, ten of the Section of Entomology, and
six of Microscopy. At the general meetings, the average attendance of members had been
thirty-three, of the Section of Entomology twelve, and of that of Microscopy eight. The
number of ladies who attended in response to the invitation of the Society, of course is not
included. Very few, however, availed themselves of the opportunity offered. One hundred
and five scientific communications had been presented by forty-nine persons, of which the
titles are given in the report. Five Corresponding and twenty-nine Resident Members
had been elected during the year.
There had been three courses of lectures given during the winter and spring ; the first
by Dr. B. Joy Jeffries, consisted of four upon Optical Phenomena, the second by Mr. W.
H. Niles, of twelve upon the Geological History of North America, and the third by Mr.
Wn. T. Brigham, of twelve upon Plant Life. The first, not having been advertised and the
subject being of limited interest, failed to draw many hearers, the second was attended by
an average of sixty-six persons, the third by an audience averaging about ninety-nine per-
sons. The last course was in the evening, which may in part account for the greater
attendance.
The Custodian dwelt with satisfaction upon the large amount of the Society’s publica-
tions, as well he might if only their extent and value were considered, and the consequent
cost ignored. When, however, it is learned that what was done in this way led to an
excess of expenditures over receipts to the amount of thousands of dollars, and obliged the
Trustees of the property of the Society to encroach largely upon its capital to meet this
excess, one is inclined to judge there was little cause for exultation. A few years of such
lavish expenditure could have had but one result.
The issue from the press of the publications of the Society had been double that of any
previous year, being not less than an equivalent of one thousand two hundred and twenty-
nine octavo pages. The twelfth volume of Proceedings begun a year previous, had
BOSTON SOCIETY OF NATURAL HISTORY 125
reached the four hundredth page. The annual report, the first issue of the publication
called the “ Annual,” a physical map of North America, the fourth part of the Memoirs,
and the first volume of the Occasional papers had all appeared, the latter containing the
Entomological correspondence of the late Dr. T. W. Harris, embellished with steel plates
and wood cuts.
It will be remembered that in 1867, an appropriation of $500 was made by the Council
towards the expenses of some explorations to be made under the auspices of the Smith-
sonian Institution, with the understanding that the Society should receive the first choice
among the duplicates of objects of Natural History collected by the explorers. Under
this arrangement the Society received within the first year a series of birds from the
Island of Socorro, the natural history of which had been explored by Col. Grayson. The
specimens received were of peculiar interest, being nearly all new to science, and distinct
from the species of the neighboring continent, or of islands nearer the coast. Only a
portion of the sum appropriated having been called for, the Council again voted in 1868,
that $200 should be at the disposal of the Smithsonian Institution for further explorations
by Col. Grayson in Central America, and $100 towards an expedition to be made by
Prof. Sumichrast in Tehuantepec, the $500 being what remained unexpended of the
original appropriation.
During the past year, after leaving the Island of Socorro, Col. Grayson had been study-
ing the natural history of the Sierra Madre, from which, however, returns had not been
made of objects obtaimed by him. A fine collection of birds had, nevertheless, been pre-
sented to the Society, by Prof. Henry of the Smithsonian Institution, collected at Costa
Rica.
From the Isthmus of Tehuantepec, for the exploration of which by Prof. Sumichrast
the Society contributed $100, news had been received of a very promising character.
The Smithsonian Institution had already received specimens which had been distributed
for identification.
One of our own members, Mr. W. H. Dall, had been employed by the Society for sey-
eral months selecting specimens from the Smithsonian duplicates, partly in return for the
contributions made by the Society towards the explorations referred to, and partly as a
donation from the Institution.
Already many fossils and mollusks had been received by the Society, and a collection
of the nests and eggs of birds was expected to arrive.
The visitors to the Museum had exceeded thirty-six thousand. It had been open to
the public one hundred and four days.
In the department of Mammals and Comparative Anatomy, a movement had been made
towards obtaining specimens of all our New England mammals, and to make room for
them, the Ethnological collection was to be removed. A black bear and an antelope, one
the donation of Mr. W. T. Adams, the other of the City, had already been received.
The collection of birds had been increased by a donation of twenty-five specimens
of the land species of Massachusetts, from Mr. L. L. Thaxter of Newton. Mrs. Bryant
had again shown her interest in the Society by the gift of a large and valuable collection
of unmounted birds from the West Indies and Central and North America, and from Pro-
fessor Henry of the Smithsonian Institution, eighty specimens from Costa Rica had been
received, all labelled by Mr. Lawrence.
126 HISTORICAL SKETCH OF THE
The collection of Nests and Eggs of birds had been entirely rearranged. A statement
was made showing the collection at this time to consist of the eggs of seven hundred birds,
of which four hundred were American. A large number of duplicates, valuable for ex-
change, had been presented by Mrs. Bryant, and about two hundred and fifty nests and
egos by the Smithsonian Institution.
The Curators of the departments of Reptiles and Fishes mentioned great deficiences in
the representation of Massachusetts species, and in the latter the need of help in order
to identify and label the specimens.
The Entomological collection was stated to be in better condition than it had been a
year previous, much attention having been given to its improvement and preservation.
In referring to the condition of the department of Mollusks, the Custodian made some
remarks of more than temporary value. With the exception, he stated, of work done by
the last Curator, there is no evidence of any attention having been bestowed upon the
specimens for fifteen years. It was now in a worse condition than it had been years before,
showing that gratuitous aid had proved a failure. The Curator’s entire attention had been
given to the Pratt collection, the arrangement of which would be completed before other
work was done in the department.
Of the other collections nothing was said of sufficient importance to repeat here.
The report of the Treasurer was startling. It showed an excess of expenditures over
receipts of more than $6,000, and a diminution in the value of the Society’s property of
over $13,000. Much of this latter was accounted for by the reduction in the estimated
value of the stocks which had been received under the Walker bequest, but it was only
too evident that there had not been a due economy exercised in the administration of the
business of the Society. Well might the Trustees protest as they did, and well it was, too,
that the Council heeded their warning. The lesson taught was not lost upon the members,
and finally led to measures tending to prevent, under any ordinary circumstances, more
expense of means than income warranted. Among these was that of requiring from the
Trustees at the commencement of each year an estimate of the probable receipts from the
various sources tabulated, and also one showing what expenditures might be incurred in
the different departments based upon such receipts; there being a clear understanding
that under no avoidable circumstances should there be expended more than the income.
This met the hearty approval of all, and the policy adopted has been faithfully adhered to
ever since. It was not, however, intended that the expenditure yet necessary in finishing
the rooms of the Museum and in supplying cases should be paid for from the ordinary
income. Whatever was done in this way it was expected would necessarily be paid for in
part, at least, from the principal of the Society’s property. At the meetings of the Coun-
cil following the general meeting, there was much discussion concerning retrenchment, a
strong disposition being manifested to reduce expenses within the probable imcome.
At a regular meeting in. June the Rev. Robert C. Waterston reminded the members of
the approaching centennial anniversary of the birthday of Humboldt, and suggested the
public celebration of it by the Society. He remarked that it was wholly unnecessary in
such a presence to speak of Alexander Von Humboldt in order to impart information con-
cerning one whose illustrious reputation in so many departments of knowledge had made
his name familiar over the civilized world. Yet in view of what he had done for science
BOSTON SOCIETY OF NATURAL HISTORY. 127
by his explorations on this continent, it seemed particularly appropriate that a Society like
this should do honor to his memory. He further remarked that there was one among the
members, preéminent in science, who had been his pupil and his personal friend, Louis
Agassiz, who was specially qualified to speak upon such an occasion. That to hear him
menof science and letters from every part of the country would gladly assemble to listen
and to respond.
Although the matter had not been apparently thought of by any of the members, all
present heartily concurred in the sentiments expressed by Mr. Waterston, recognizing that
in the Society thus paying a tribute of respectful homage to one of the noblest of men,
it could not but do itself great honor. The proposal therefore met with a hearty response,
and the following resolution, offered by Mr. Waterston, was unanimously adopted:
“ Resolved, That it is highly desirable that the Boston Society of Natural History should
hold a public celebration of the centennial anniversary of the birth of Alexander Von
Humboldt, and that a committee of five be appointed to consider the whole subject and
empowered to make all arrangements.’ The President appointed on this committee the
Rey. Robert C. Waterston, Dr. Samuel Kneeland and Mr. Samuel H. Scudder. To these
were subsequently added the President, Jeffries Wyman, His Honor the Mayor, N. B.
Shurtleff, and Col. T. W. Higginson.
It is due to Mr. Waterston to state that a large part of the work attendant upon
the celebration was done by him. That it might be a thorough success and redound
to the credit of the Society and the community, he gave up his whole time to it, remain-
ing in the city during the hot summer months, and exerting himself to the utmost that
nothing might be left undone that would add to the interest of the occasion. He not only
arranged for the meeting at which the address was to be delivered, but for a reception in
the evening, at which distinguished men should be invited to speak, and he induced the
City Government to take part in it and to provide an entertainment at the expense of the
City.
The celebration which followed on the 14th of September was in every respect a success,
far exceeding the anticipations of all who had favored it. Probably nowhere throughout
the civilized world was the day more appropriately observed. The address by Agassiz was
worthy of the man and the occasion. It was delivered at the Music Hall» before an
audience which filled every available place in it. Delegates from the leading literary
and scientific societies of New England and representatives from the colleges of Yale,
Bowdoin, Brown, Dartmouth and Harvard were present, as were likewise His Excellency
the Governor of the Commonwealth, His Honor the Mayor of the City and members of
both branches of the City Government. President Wyman presided at the meeting.
The evening reception was at Horticultural Hall. A large and distinguished audience
attended it, including invited guests from literary and scientific societies, members of the
City Government, and many gentlemen interested in the cause of education from every
part of the country. Interesting mementos of Humboldt, including several portraits of
him, were placed upon the platform and about the hall. The Rev. Mr. Waterston pre-
sided, and after welcoming the delegates from the different societies present and mak-
ing some appropriate remarks, introduced successively the Rev. Frederick H. Hedge, Mr.
Ralph Waldo Emerson and Prof. E. J. Young, all of whom made interesting addresses.
Among the portraits exhibited, was one by Mr. Wight, painted at Berlin in 1852 from life,
128 HISTORICAL SKETCH OF THE
when Humboldt was eighty-three years of age. It had been loaned to the committee for
the occasion by the artist. The chairman, calling attention to it, stated that an order had
been given to the artist to execute an exact copy. - This would be unveiled, and if it was
found in every respect satisfactory, he, the chairman, would take great pleasure in pre-
senting it on this centennial anniversary to the Boston Society of Natural History. The
covering was removed and the resemblance was found to be so perfect as to call forth
spontaneous applause. A letter from the artist was read giving an account of his personal
observation of Humboldt when he was engaged upon his portrait: Accompanying it was
an autograph note of Humboldt, which was also presented to the Boston Society of Natural
History by the chairman. In behalf of the Society, Dr. Charles T. Jackson, Vice-Presi-
ident, accepted the portrait and autograph with expression of thanks. He stated that
Humboldt himself had declared that the original by Wight was the best ever painted of
him.
Dr. Jackson then gave some pleasant reminiscences of Humboldt, whom he had often
met in Paris at Cuvier’s lectures in 183). He also made some interesting remarks upon
his works and character.
The chairman then called upon his Honor the Mayor, who, in responding briefly, said
that the City Government, being desirous of expressing its respect for the memory of Alex-
ander Von Humboldt, had passed resolutions and had made a generous appropriation. In
behalf of both branches, he invited all present to partake of a collation prepared for them
in the hall below. The company accepted the invitation and proceeded to the place
assigned, where they enjoyed an excellent supper, during which at intervals the Ger-
mania band added their enlivening music to the entertainment.
After refreshment at the tables, a poem upon Humboldt, prepared for the occasion by Oli-
ver Wendell Holmes, and another by Mrs. Julia Ward Howe, were read. During the even-
ing, several communications from distinguished persons unable to be present, were pre-
sented, one from the Hon. Theo. 8. Fay, one from Prof. William B. Rogers, one from
the Rev. Noah Porter and one from John G. Whittier. The address by Agassiz, with a
full account of the proceedings at the evening meeting, may be found in pamphlet form
published by the Society.
In October, Dr. C. F. Folsom resigned his position as Curator of Comparative Anatomy
and Mammals.
At a meeting of the Council, held Nov. 17ta, it was voted that the net proceeds of
the celebration of the Centennial Anniversary of the birth of Humboldt, together with
the money received from the sale of Prof. Agassiz’s address previous to Jan. 1, 1870, and
the money subscribed at the solicitation of the Society’s Committee, be given to the
Trustees of the Museum of Comparative Zodlogy at Harvard College, in trust, for the
establishment of an endowment under the title of the “ Humboldt Scholarship,” the
income of which should be solely applied, under the direction of the Faculty, toward the
maintenance of one or more young and needy persons engaged in study at said Museum.
The reception of the money, amounting to $7,040.66, was gratefully acknowledged by
the Trustees of the Museum of Comparative Zoblogy, under the conditions expressed in
the vote of the Council. .
BOSTON SOCIETY OF NATURAL HISTORY. 129
Mention was made in giving an account of the proceedings at the evening reception on
the day of the Humboldt celebration, of a fine portrait presented by the Rev. Mr. Waters-
ton to the Society. This may now be seen in the Library of the Museum.
The hearty thanks of the Society were passed to Mr. Waterston not only for the val
uable portrait and autograph, but for the unflagging energy with which he had labored
for the success of the Humboldt celebration. Testimony was borne to the untiring zeal
manifested by him in obtaining subscriptions for the fund, and in performing a large part
of the work consequent upon the celebration. The Society also expressed its obligations
to Prof. Agassiz for his able address, a copy of which was asked for publication. Thanks
were also voted to the Orpheus Musical Association, and to Mr. Carl Zerrahn, for their wel-
come aid in the performances of the occasion; also to Mr. J. H. Paime, who presided at
the organ.
1870. On January 19th, Dr. Thomas Waterman was elected Curator of Comparative
Anatomy and Mammals.
At the meeting of April 20th, in view of contemplated changes in the administration of
the Society, certain alterations were made in the Constitution and By-laws to go into
effect on and after the annual meeting. The most important of these arose from the sub-
stitution of Committees for Curators in the care of the Museum.
The Constitution was made to express that the officers of the Society shall consist of a
President, two Vice-Presidents, a Corresponding Secretary, a Recording Secretary, a Libra-
rian, a Custodian and a Committee of three on each’ department of the Museum, etc., etc.
The By-laws were so altered as to define that the Committees should be entrusted with
the care of the Museum; that they should be designated for particular departments at
the time of their election, and consist of not more than three members, one of whom
should be named by the nominating committee to act as chairman. The duties mentioned
were such as the By-laws previously active expressed for those of the Curators.
Annual meeting. The Custodian’s report gave the following summary of the doings of
the Society during the year:
There had been eighteen general meetings, the average attendance at which had been
thirty-two: eight of the section of Entomology, with an average attendance of eleven:
and seven of the section of Microscopy, with an average attendance of nine. Forty-seven
scientific communications had been made by twenty-five persons, all of which had been
printed in full or by title in the Proceedings. |
One Honorary, three Corresponding and thirty-nine Resident Members had been elected.
Three courses of evening lectures had been arranged for by the Council. One of twelve,
entitled Sketches of Animal Life, by Mr. Edward 8. Morse, delivered in the early part of
the season, had an average audience of seventy-six persons; the second, consisting also of
twelve, given by Mr. William T. Brigham, entitled The Earth we live on, had an
audience averaging ninety-ecight persons; the third, not concluded at the time of the annual
meeting, consisted of four, entitled Familiar Talks about Insects, given by Mr. F. G. San-
born. The average attendance at these was about sixty.
Of the Publications it was stated that from economical considerations the issue of a large
number of the Memoirs had been postponed. Of the Proceedings the twelfth volume had
been printed, and a part of the thirteenth. The address of Prof. Agassiz at the recent cele-
150 HISTORICAL SKETCH OF THE
bration of the Humboldt Centenary, with an account of the evening’s festivities, forming
an octavo pamphlet of one hundred and seven pages, had been also published and dis-
tributed.
The Custodian expressed strongly the feeling that a further postponement of activity
in this direction could not fail to be disastrous. Yet there had been sent abroad of
parts of Memoirs and of the Journal, of copies of Harris’ Correspondence, of the Pro-
ceedings, what was equivalent to about two hundred and sixty-five volumes of the Pro-
ceedings, and over 200,000 octavo pages. Besides all this the Society had distributed in
behalf of the Commonwealth, three hundred copies on the Report of the Invertebrates of
Massachusetts, recently published by the State.
The judicious action of the Legislature, the Custodian remarked, in placing its scien-
tifie publications where they will be of the greatest permanent benefit, merits the com-
mendation of all who, like ourselves, are aiming at the widest diffusion of knowledge.
An enumeration of the books in the Library had been recently made. They were
counted as bound, whether containing more than one volume, as frequently the case, or
not; and the parts had been estimated at their proper proportions of the volumes to
which they belong, and the pamphlets counted separately. ‘The enumeration therefore
gave the number as proportionably smaller than previous estimates. There were found
to be 9396 volumes, and 2677 pamphlets. Of these volumes ten hundred and ten were of
a general literary character, mostly deposited by “ A Republican Institution ”; eight hun-
dred and six were botanical; four hundred and fifty-three entomological; four hundred
and two geological and mineralogical; five hundred and ten encyclopaedic; six hundred
and thirteen upon vertebrates; five hundred and thirty-six upon travels and local fauna,
and forty-one hundred and seventy-three journals and publications of Societies.
The Custodian announced the death of our esteemed coadjutor, Col. A. J. Grayson, to
whose explorations it will be recollected the Society contributed im connection with the
Smithsonian Institution. It had been the strong wish of both parties interested, that he
should visit the Sierra Madre of North Western Mexico, that he might make there a care-
ful investigation of its fauna. He arranged to be there in June, that being considered
the most favorable month for his purposes. Prior to that period he visited the Island of
Isabella off the coast to study the habits of sea fowl during their breeding season, and
there he contracted a malarious disease that led to his death in August.
The amount contributed by the Society bemg unexpended, was returned by his wife to
the Smithsonian Institution. By advice of Prof. Henry, this was transferred by vote of
the Council to Prof. Sumichrast, to be used in the explorations undertaken by him on the
Isthmus of Tehuantepec.
An arrangement had been made by the Custodian with the Secretary of the Smith-
sonian Institution, by which a large number of unassorted specimens of various character
were sent to the Society with the understanding that they should be returned in orderly
condition, compensation for the labor being made by a selection from the duplicates for
the Cabinet.
The number of visitors to the Museum during the year exceeded forty thousand. It
was open to the public one hundred and four days. The largest number present on any
one day was seven hundred and eighty-one.
BOSTON SOCIETY OF NATURAL HISTORY. 3t
The Custodian reported the collections of the different departments of the Society to be
in good condition. That of Mammals and Comparative Anatomy had received a stuffed
specimen of the great Antarctic seal collected in the exploring expedition of Commodore
Wilkes. A living opossum and its young had also been received from Dr. C. Kollock of
South Carolina, and had been mounted in characteristic attitudes. Other interesting
specimens had been received from the Union Street menagerie.
In the Ornithological department, the mounted birds had had special attention, every
specimen having been taken down, thoroughly examined, and where necessary treated
with benzine and other materials. The cases had all been made as nearly air tight as pos-
sible and in fact every possible measure adopted to prevent the further ravages of insects.
To accomplish this, four or five persons had worked continuously for two months. Dona-
tions had been received from the Smithsonian Institution, F. E. Everett, 8. Mixter,
H. A. Purdie and others.
Quite extensive additions had been made to the collection of nests and eggs, mostly
in exchange. To Mr. B. P. Mann and Mr. S. Mixter, the department had been indebted
for the presentation of many specimens.
The Entomological collections were reported in better condition than at any time within
ten years. Mrs. Stratton, Mr. H. Edwards and others, had presented many specimens, and
there had been a valuable accession from Tehuantepec collected by Professor Sumichrast.
There had been considerable work done upon the Reptiles, and one hundred and fifteen
specimens had been added to the collection. A marked deficiency of native species was
mentioned, particularly of turtles.
The Fishes, numbering three thousand eight hundred and ninety-six specimens, were
reported in good order and mostly identified.
Some work had been done by Mr. 8. I. Smith upon the Crustacea, and the whole collec-
tion placed in satisfactory condition. ,
The Curator of Mollusks reported much progress in mounting the gasteropods of the
Pratt collection, and mentioned that a valuable series of British shells had been received
from the Smithsonian Institution, and many specimens from Mr. H. Edwards and others.
The collection of Radiates had been greatly improved, and a large portion of the corals
and sponges mounted in an erect position upon black tablets.
The Botanical department had received an important addition in the herbarium of Hon.
John Amory Lowell, containing many thousand species carefully labelled, mounted aud
catalogued.
By the subscription of some gentlemen, a ring of the bark of a Redwood tree of Califor-
nia had been purchased, measuring forty feet in circumference. This had been mounted
under the direction of Mr. Brigham, the acting Curator, and now forms a conspicuous
object in the entrance hall of the Museum.
The arduous task of rearranging and labelling the entire Mineralogical collection had
been completed by the Curator, and the whole was now in perfect order. The number of
specimens was about 2800.
Mr. 8. H. Scudder, the Custodian, in presenting the annual report, took occasion, as
this was to be the final one by him, to review somewhat at length the experience of the
Society in the past, and to suggest considerations in relation to its future policy. He said
that “while some collections need a good deal of revision and many are not yet entirely
132 HISTORICAL SKETCH OF THE
supplied with the uniform system of labelling lately adopted, the Museum is in much
better order and in a much safer condition than it has been at any time since our removal
to this buildmg. The Library has increased, and the lectures have proved a success, but
in our publications and in the interest of our meetings, we have sadly fallen off”
The Custodian further remarked upon the great importance of the publications of the
Society as a means through which the researches of the members might be promptly
made known, and the fame which it has fairly won at home and abroad be sustained.
In relation to the Museum, after mentioning its large collections, he expressed the view
that, with some exceptions, they embraced sufficient for all the purposes of the Society.
That its principal aim should not be to sustain a great museum or an industrial one, but
rather seek to maintain first, a popular educational one, in which all and none but the
characteristic forms of life and inorganic nature should be displayed, and second, a com-
plete local collection, restricted at widest to our New England flora and fauna. To effect
this, it was important that more skilled labor should be regularly employed, and a man of
broad scientific culture placed at the head of the Museum, with its interests alone in
charge.
The Custodian then spoke of his endeavors to faithfully perform the duties of his office,
and expressed warmly his appreciation of the devotedness of those who had been engaged
to assist him in the various departments of the Society’s operations.
Upon motion of Mr. F. W. Putnam, who thought something more was due the retiring
Custodian than a simple vote of thanks for his services, it was unanimously voted that the
rules be suspended and Mr. Scudder be made a Life Member of the Society.
The Treasurer’s report showed, including all sources of income available for general pur-
poses, a balance of receipts over expenditures, of $160.49.
The Prize Committee reported through Dr. J. B. 8. Jackson, that only one essay had
been offered in competition for this year’s prize, and this was not deemed worthy of it.
They announced for the subject of the prize for 1872, “The Darwinian question ; its bear-
ings on the development of animal life.”
Letters from the President, Dr. Jeffries Wyman, at this time in Europe, positively declin-
ing to be a candidate for the office so long held by him, had been received. The Nomina-
ting Committee however, thinking that he might be induced again to accept the position,
asked further time for consideration before any action was taken in electing a President.
They also asked further time before presenting names for the Committees on the depart-
ments of Mammals and Comparative Anatomy, as the Council had, but a few hours before
the meeting, divided the department of Comparative Anatomy, which before embraced
Mammals, into two departments. They likewise asked further time before nominating the
Committee for the department of Microscopy.
The list of officers proposed by them was then presented, the Rev. Joshua A. Swan
being named as the successor to Mr. S. H. Scudder, for the positions of Custodian, Librarian
and Recording Secretary. A strong objection was made to the nominee for the former
office, many present favoring the election of Mr. Alpheus Hyatt. A prolonged and very
earnest discussion followed, the whole policy of the Society and the comparative merits of
the two persons mentioned for the position being ably presented. Those who participated
in the discussion were N. 8. Shaler, J. B. S. Jackson, J. C. White, E. 8. Morse. R. C.
BOSTON SOCIETY OF NATURAL HISTORY. 133
Go
Greenleaf, F. W. Putman, W. H. Niles, T. M. Brewer, W. T. Brigham, J. D. Runkle and
Thomas T. Bouvé. Upon balloting, it was found that Mr. Alpheus Hyatt was elected
Custodian and Mr. Swan, Librarian and Recording Secretary, the majority of the members
thus electing two officers to fill the three positions, instead of one as hitherto. One objec-
tion to this was the largely increased expense thereby incurred, but the result was gener-
ally satisfactory.
The Committees chosen for the several departments were as follows :
On Birds.
Thomas M. Brewer, M. D.,
Samuel Cabot, M. D.,
J. A. Allen.
On Mollusks.
Edward 8. Morse,
John Cummings,
Levi L. Thaxter.
On Fishes and Reptiles. On Palaeontology.
D. Humphreys Storer, M. D., W. H. Niles,
F. W. Putnam, N.S. Shaler,
N. E. Atwood. Thomas T. Bouvé.
On Insects. On Botany.
F. G. Sanborn, William T. Brigham,
A. 8S. Packard, Jr., M. D., Charles J. Sprague,
Edward Burgess. J. Amory Lowell.
On Crustacea and Radiates. On Minerals and Geology.
A.§. Packard, Jr., M. D., Thomas T. Bouvé,
A. E. Verrill, Charles T. Jackson, M. D.,
Alexander Agassiz. William T. Brigham.
The election of Committees for the departments of Comparative Anatomy, Mammals and
Microscopy was postponed to allow time for further consideration.
The fourth decade of the existence of the Society was now completed. It had been a
period of great events in its history. Its commencement found the country involved in a
war which, by rapidly wasting its resources, threatened alike its material prosperity and
its progress in art, science and literature. There was sadness in the hearts of men and an
undefined dread of evil pervading their minds, tending to concentrate all thought upon the
movements of armies and the tidings of conflict. Thank God, too, there was an unfalter-
ing faith im the final success of the struggle for the nation’s integrity, which kept alive
hope and encouraged exertion for the advancement of all movements promising future
good to the community. Thus was it that m the midst of a dreadful civil war the Society
was enabled, through the untiring devotion of its own members and by the exertions, the
contributions and bequests of many friends, to erect the fine structure that now adorns the
city, and to place therein the great collections of natural history that now minister to
the delight and the instruction of multitudes.
In referring to the period of the civil war, it may not be amiss to state that besides the
members of the Society mentioned as having resigned their official positions in it to enter
the service of their country, there were several others who took an active part in the con-
flict. Among them was one whose great interest in the welfare of our institution for
154 HISTORICAL SKETCH OF THE
many years as shown by his exertions in its behalf when in distant regions, entitles him to
respectful notice in these pages. That he died by the hands of the enemy makes it all the
more a duty to render a tribute to his memory.
Joseph P. Couthouy was born in Boston, January 6, 1808. He was educated at one of
the schools in the town, and when yet a lad, made a voyage in his father’s ship. His
tastes leading him to prefer a sea life, he applied himself to the calling he had chosen, and
became, when old enough, the captain of a vessel.
He early developed a love for science, and had progressed in his studies to such an
extent that when the American Exploring Expedition was organized under command of
Lieutenant Wilkes, he was appointed one of the scientific corps to accompany it, his spe-
cialty being that of Conchology. The expedition sailed from Hampton Roads, Aug. 18th,
1838, and, although the state of his health obliged him eventually to abandon his share
of the enterprise at the Samoan Islands, yet he had already made very valuable collec-
tions of shells and illustrated his numerous notes and descriptions concerning the many
species obtained, with drawings and colorings which would have been of invaluable assist-
ance to Dr. A. A. Gould, who subsequently published the elaborate report on the shells
secured by the expedition, had not these papers been in some unexplained way lost or
destroyed when the cases containing the specimens were unpacked after arrival.
Captain Couthouy afterwards went to South America and the islands of the Pacific
Ocean, making numberless valuable observations on the natural history of the countries
which he visited.
In the year 1854, he was engaged to take command of an expedition to the Bay of
Cumana, for the purpose of exploring for the wreck of the Spanish man-of-war San Pedro,
lost there nearly half a century previously, which was supposed to have had a great amount
of treasure on board. After three years spent in an unsuccessful search for this, the vessel
returned to the United States, and was lost in a violent snow storm on Cape Cod, the crew
being saved with the greatest difficulty.
When the war of the rebellion broke out, Captain Couthouy offered his services to the
government. They were at once accepted, and he was placed in command of the U.S.
barque “ Kingfisher,’ in which he was actively engaged against the enemy. Being trans-
ferred to the command of the U. 8. steamer “ Columbia,’ he jomed the blockading
squadron of the South Atlantic, and upon his vessel being wrecked in a storm at Mason-
boro Inlet, he was captured and sent as a prisoner of war to Salisbury, where he remained
three months. After bemg exchanged he was placed in command of the monitor “Osage”
of the Mississippi river squadron under Admiral Porter, and subsequently, being transferred
to the “ Chillicothe” of the same squadron, was ordered up the Red River. In this expe-
dition he met his death. On the 3d of April his ship was engaged with a large body of
rebel troops on the shore. Captain Couthouy was on deck directing the fire of his guns,
when a rebel sharp-shooter on the bank fired at and mortally wounded him. He died the
next day, universally regretted by officers and men, and by no one more than the
Admiral, who, in a letter to the Secretary of the Navy, bore witness to his zealous, patri-
otic and estimable character.
Captain Couthouy was a man of rare and varied ability. He was a fine linguist, and
spoke with great elegance the Spanish, French, Italian and Portuguese languages. An
BOSTON SOCIETY OF NATURAL HISTORY. 135
interesting example of the beauty of his pronunciation of the Spanish was given the
writer by one of his intimate friends. Being in Spain at the time of the Carlist wars, he
was repeatedly under suspicion on the part of the officers of the government, who could
not believe him to be a foreigner, the purity of his accent and thorough knowledge of the
language leading them to think that he must necessarily be a native Spaniard. He had
also in the course of his travels mastered more than one of the unwritten languages of the
South Pacific Islands.
He was described by intimate friends and associates as being a man of the utmost fasci-
nation of manner, and one whose wide and varied information made him one of the most
interesting of companions.
Elected a member of the Society on the 6th of April, 1836, he was often before it while
at home, at the meetings, with communications or remarks relating to facts of scientific
interest which had come to his knowledge during his wide-spread investigations abroad.
He also, from time to time, presented many specimens to the Society.
His memory should be held in tender regard by the Society, for while, in former years,
an active and valued associate, his death in battle in the service of his country added
another to the list of those who have passed away, leaving, through faithful work in the
cause of science, a lasting lustre on its roll of membership.
Captain Couthouy married Miss Mary G. Wild of Boston. His wife died in 1857, and at
the time of his death, in 1864, he had three daughters livmg. His only son had died
previously.
It having been necessary in quite a number of instances during the first half of this
decade to record the fact of several of the officers having resigned or temporarily vacated
their positions in order to engage in the military or naval service during the war for the
suppression of the rebellion, it is fitting that the part which was taken in the great conflict
by members of the Society should be recognized ; and the following roll gives the names
and branch of the service to which they belonged, of such as are, or have been, borne
upon its list of membership.
Dr. Samuel Kneeland, Surgeon 45th Mass. Infantry, Brevet Lieut. Colonel. -
Dr. Henry Bryant, Surgeon 20th Mass. Infantry, Brigade Surgeon U. 8. Vols.
Dr. Samuel A. Green, Asst. Surgeon Ist Mass. Infantry, Surgeon 24th Mass. Infantry.
Dr. Burt G, Wilder, Asst. Surgeon 55th Mass. Infantry.
Dr. B. Joy Jeffries, Sergeant Ist Corps Cadets M.V.M., Acting Assistant Surgeon U.S.A.
Dr. Francis H. Brown, Acting Assistant Surgeon U. 8. Army, Private 12th unattached company Mass.
Infantry.
Theodore Lyman, Colonel U.S. Vols., aide-de-camp to Major General Meade.
Albert Ordway, Lieut. Colonel 24th Mass. Infantry. Brevet Brigadier General.
Amos Binney, Major and Paymaster U. 8. Vols.
Dr. John Stearns, Surgeon 4th Mass. Heavy Artillery.
Dr. Lucius M. Sargent, Jr., Surgeon 2d Mass. Infantry, afterwards Major Ist Mass. Cavalry. Killed in
battle.
Dr. Hall Curtis, Asst. Surgeon 24th Mass. Infantry, Surgeon 2d Mass. Heavy Artillery.
Dr. Robert T. Edes, Passed Assistant Surgeon U. S. Navy.
Dr. Z. Boylston Adams, Asst. Surgeon 7th Mass, Infantry, Surgeon 32d Mass. Infantry, afterwards
Major 56th Mass. Infantry.
Dr, A. 8. Packard, Jr., Asst. Surgeon 1st Maine Veteran Volunteer Infantry.
Dr. Calvin G. Page, Surgeon 39th Mass. Infantry.
Dr. Franklin Nickerson, Acting Assistant Surgeon U. S. Navy.
Dr. F. P. Sprague, Acting Assistant Surgeon U. 8. Army.
Dr. Algernon Coolidge, Acting Assistant Surgeon U.S. Army.
HISTORICAL SKETCH OF THE
Dr. Edward Wigglesworth, Jr., Hospital Steward 45th Mass. Infantry, Volunteer Surgeon.
Dr. J. Collins Warren, Volunteer Surgeon U.S. Army.
Dr. Francis C. Ropes, Assistant Surgeon U. 8. Army.
Dr. H. M. Saville, Surgeon 4th Mass. Infantry.
Dr. George Derby, Surgeon 23d Mass. Infantry, Brevet Lieut. Colonel.
Dr. H. P. Bowditch, Major 54th Mass. Infantry, Captain Ist Mass. Cavalry, Major 5th Mass. Cavalry.
Dr. John McLean Hayward, Surgeon 12th Mass. Infantry.
Dr. C. F. Crehore, Asst. Surgeon 15th Mass. Infantry, Surgeon 37th Mass. Infantry, Medical Inspector on
staff of Major General Sedgwick.
Dr. Oliver F. Wadsworth, Asst. Surgeon 5th Mass. Cavalry, Brevet Captain U.S. Vols.
Dr. Allston G. Bouvé, Private 6th Mass. Infantry.
Dr. John Homans, Assistant Surgeon U. 8. Navy, Asst. Surgeon U. 8. Army.
Dr. William Ingalls, Surgeon 5th and 59th regiments Mass. Infantry.
Dr. William Henry Thayer, Surgeon 14th New Hampshire Infantry.
Dr. John C. Dalton, Asst. Surgeon 7th New York V. M., Surgeon U.S. Vols.
Dr. 8. W. Langmaid, Acting Asst. Surgeon U. 8. Army.
Dr. Charles W. Swan, Acting Asst. Surgeon U.S. Army.
Dr. Samuel G. Webber, Asst. Surgeon U. 8. Navy.
Dr. Charles B. Porter, Acting Asst. Surgeon U. S. Army.
Dr. Frederick S$. Ainsworth, Surgeon 22d Mass. Infantry.
Dr. Thomas B. Hitchcock, Asst. Surgeon 42d Mass. Infantry.
Dr. George J. Arnold, Acting Asst. Surgeon U. 8. Army.
Dr. Charles E. Hosmer, Private, Steward U.S. Navy, Acting Asst. Surgeon U. 8. Navy.
Dr. John G. Park, Acting Asst. Surgeon U. 8. Navy.
Dr. Charles Thacher Hubbard, Asst. Surgeon U.S. Navy.
Dr. James E. Walker, Acting Asst. Surgeon U. 8. Army.
Dr. Henry G. Clark, Inspector-in-chief of the Sanitary Commission.
Dr. J. Nelson Borland, Inspector of Hospitals for the Sanitary Commission.
Dr. Samuel L. Abbot,
Dr. Henry I. Bowditch,
Boston during the war, and Volunteer Surgeon in the Army.
“
oe
“
“
Surgeon to the Board of Enrolment in
Dr. Samuel Cabot, Jr., Inspector of Hospitals for the Sanitary Commission and Volunteer Surgeon.
Dr. William Edward Coale,
Dr. Calvin Ellis,
Dr. Augustus A. Gould,
Dr. J. B. 8. Jackson,
Dr. Francis Minot,
Dr. Benjamin 8. Shaw,
Dr. Charles E. Ware,
Dr. Henry W. Williams,
Dr. W. W. Morland, “
Dr. Winslow Lewis, &“
Dr. Henry K. Oliver, “
Dr. D. D. Slade, “
Rey. Warren H. Cudworth, Chaplain Ist Mass. Infantry.
(79
“
and Volunteer Surgeon.
T. Wentworth Higginson, Captain 51st Mass. Infantry, Colonel 33d U. 8. Colored Troops (1st South
Carolina Infantry).
Francis A. Osborn, Colonel 24th Mass. Infantry, Brevet Brigadier General U. 8. Vols.
Joseph P. Couthouy, Acting Volunteer Lieutenant U.S. Navy.
Alpheus Hyatt, Jr., Captain 47th Mass. Infantry.
Killed in battle.
BOSTON SOCIETY OF NATURAL HISTORY. 137
T. W. Clark, Colonel 29th Mass. Infantry.
Edward C. Cabot, Lieut. Colonel 44th Mass. Infantry.
Hiram 8. Shurtleff, Captain 56th Mass. Infantry.
Nathaniel 8. Shaler, Captain 5th Kentucky Artillery.
Nathaniel Bowditch, 1st Lieut. Ist Mass. Cavalry, A.A.G. U.S. Vols. Killed in battle.
Charles W. Folsom, 1st Lieut. and Q.M. 20th Mass. Infantry.
Huntington F. Wolcott, 2d Lieut. 2d Mass. Cavalry. Died in the service.
Edward T. Bouyé, 1st Lieut. 32d Mass. Infantry, Captain 4th Mass. Cavalry, Major 26th N. Y. Cavalry.
Joseph H. Lathrop, Sergeant 43d Mass. Infantry, Ist Lieut. and Adjutant, ¢ 4th Mass. Cavalry.
John E. Alden, 2d Lieut. Ist unattached company Mass. Infantry.
Nathan Appleton, 1st Lieut. 5th Battery Mass. Light Artillery, Capt. and A.D.C. U.S. Vols.
Louis Cabot, 2d Lieut. Ist Mass. Cavalry, Capt. 2d Mass. Cavalry, Major 4th Mass. Cavalry.
Fletcher M. Abbott, 1st Lieut. 2d Mass. Infantry.
John Ritchie, 1st Lieut. and Q.M. 54th Mass. Infantry.
William E. Endicott, 2d Lieut. 30th unattached company Mass. Heavy Artillery.
Lorin L. Dame, 1st Lieut. 15th Battery Mass. Light Artillery.
Albert S. Bickmore, Private 44th Mass. Infantry.
A. P. Cragin, Private in a Mass. Cavalry regiment. Killed in battle.
John Jeffries, Jr., Major 1st Corps Cadets Mass. Volunteer Militia.
George Brooks, Private 45th Mass. Volunteers. Died in the service at Newbern, N. C.
Robert M. Copeland, 1st Lieut. and Q.M. 2d Mass. Infantry, Major and A.A.G. U.S. Vols.
Alfred P. Rockwell, Captain Ist Battery Conn. Light Artillery, Colonel 6th Conn. Infantry, Brevet
Brigadier General U.S. Vols.
cle M. Weld, Captain 18th Mass. Infantry, Colonel 56th Mass. Infantry, Brevet Brigadier General.
E. R. Cogswell, Corporal 44th Mass. Infantry.
Jonathan Dorr, Private 44th Mass. Infantry.
Nathaniel Willis Bumstead, Captain 45th Mass. Infantry.
Carleton A. Shurtleff, Medical Cadet U.S. Army.
Joseph T. Rothrock, Private 12th unattached company Mass. Infantry, Captain Pennsylvania Cavalry.
Copley Amory, Ist Lieutenant 4th U.S. Cavalry.
Rey. George H. Hepworth, Chaplain 47th Mass. Infantry.
William Ellery Copeland, Private 44th Mass. Infantry.
Lewis W. Tappan, Jr., Captain 45th Mass. Infantry.
The writer can scarcely hope, notwithstanding great care taken, that no errors will be
found in this roll of honor. He would especially regret the omission of the name of a
single member of the Society, who manfully went forward to serve the nation in its hour
of peril.
Early in the decade now passed was received the bequest of Mr. Jonathan Phillips of
$10,000. This was followed by the grant of land from the State on which the Museum
was afterwards erected. Then came the first of the series of donations from our great
benefactor, Dr. William J. Walker, of his house in Bulfinch Street, followed by the second
and third of $20,000 each, and finally by the great bequest from him which established
the institution on such a firm foundation as to secure its perpetuity so long as wisdom
shall prevail in its councils.
The Society had also been the recipient during the decade of the bequests before men-
tioned, from Paschal P. Pope, $20,000; Miss Sarah P. Pratt, $10,000, with a large collee-
tion of shells; Dr. Benjamin D. Ghouna, $9,000, with a large library of valuable books;
and Mr. Flere Harris, $5,000. It had likewise received for the establishment of a fund
138 HISTORICAL SKETCH OF THE
for the Library, $5,000 in the name of Huntington Frothingham Wolcott, who died in the
military service of the country in the war of the rebellion.
Of the donations made towards building and other purposes in the early part of the
decade, Mr. Nathaniel Thayer contributed $2,500, Mr. Thomas Lee $1,000, Mr. John L,
Gardner $1,000, Dr. Benjamin D. Greene $1,000, Mr. Henry B. Rogers $1,000, and an
anonymous friend $1,000. A considerable amount of the money subscribed towards the
building and working funds was from donors of sums varying from $500 to $100 and less.
Besides money, the Society received during the decade the magnificent donation of the
Lafresnaye collection of birds from Dr. Henry Bryant.
There was a very valuable donation made to the Society by Mr. James M. Barnard in
1864, notice of which has not been given. This consisted of a large collection of fossil
echinoderms made by Dr. A. Krantz of Bonn, and was second in the country only to that
in the Museum of Comparative Zoilogy in Cambridge, presenting as it did good types of
nearly every group of the class.
Mr. H. F. Wolcott mentioned above was a young member of the Society whose great
interest in it led to the endowment after his death of the fund referred to in his name by
his father, Mr. J. Huntington Wolcott, as a memento of that interest, and as a recognition
of what would have been pleasing to him if living. The fund is known as the Huntington
Frothingham Wolcott Fund, and now amounts to over $6,000, the interest at first having
been allowed to accumulate and having been added to the capital. It is held is trust, the
income alone being available for the purchase of books for the Library. The service of
this fund to the Society has been very great, as without it, there would not have been
means to supply works actually indispensable for the use of the members. Mr. Wolcott
was born in Boston, February 4th, 1846, and died June 9th, 1865.
In mentioning the bequests of Mr. Jonathan Phillips made during the decade, no such
notice was given of this benefactor of the Society as seems fitting should appear concern-
ing him. A few brief remarks are therefore added here.
Hon. Jonathan Phillips was born in Boston, April 24th, 1778. He was the son of
Lieutenant Governor William Phillips and was educated for mercantile life, but never
engaged in much active business. Upon the death of his father in 1827 he became the
possessor of a very large fortune, and the remainder of his life was mostly passed in liter-
ary culture, travel, and in taking an active share in many of the benevolent and educa-
tional movements of his day, all of which he generously aided. He was at one period a
member of the Senate of Massachusetts, but his tastes and inclinations were such as to lead
him to shrink from public life. For a number of years he held the office of President of
the Massachusetts Bank. He was an associate with Dr. William Ellery Channing, Rey.
George Ripley, Dr. Charles Follen and many other prominent men, in the well-known
Progress Club, and was a very intimate friend of Dr. Channing. Among many other
bequests and donations he contributed $50,000 in aid of the Boston Public Library, first
making a donation of $10,000 and afterwards bequeathing by will $20,000, the interest of
which sums alone is available for use. He bequeathed likewise the sum of $20,000 to the
City im trust, the income of which is to be expended in adorning and embellishing the
streets and public places. To this last-mentioned bequest, the City owes the statue of
BOSTON SOCIETY OF NATURAL HISTORY. 139
Josiah Quincy in front of City Hall, that of John Winthrop in Scollay Square, and that of
Samuel Adams on Washington Street.
Mr. Phillips died in Boston on the 29th of July, 1860, at the age of eighty-two years.
Of the publications during the ten years, the seventh volume of the Journal and the
last of the series, was completed in 1863. The Memoirs in quarto form which succeeded
the Journal had been delivered to members in parts from 1865; the whole of the first
volume being completed in 1869. Of the Proceedings the twelfth volume and part of the
thirteenth had been issued.
The members of the several standing committees of the Council during the decade
were as follows :
On Publication. Drs. Jeffries Wyman, Augustus A. Gould, 8. L. Abbot, Samuel Knee-
land, Charles Pickering; and Messrs. 8. H. Scudder, William T. Brigham and Charles J.
Sprague.
On the Library. Messrs. Charles K. Dillaway, Charles J. Sprague, S. H. Scudder, Hor-
ace Mann, J. Elliot Cabot; and Drs. John Bacon and A. 8. Packard, Jr.
On Finance. Messrs. Thomas T. Bouvé, James M. Barnard, Edward Pickering and
Amos Binney.
The average attendance at the general meetings during the ten years was as follows:
For the year 1860-61 37 For the year 1865-66 34
ge « 1861-62 37 ce “1866-67 39
“ 1862-63 33 @ “ 1867-68 40
ub “ 1863-64 44 cc “ 1868-69 33
Se “ 1864-65 33 & “ = 1869-70 32
The average attendance at the meetings of the Section of Microscopy after its for-
mation was for the months December 1864 to May 1865, 9; for the year 1865-66, 9;
1866-67, 12; 1867-68, 12; 1868-69, 8; 1869-70, 9.
The average attendance at the meetings of the Section of Entomology after its forma-
tion was for the months November 1866 to May 1, 1867, 12; for the year 1867-68, 9;
1868-69, 12; 1869-70, 10.
The members who took the most active part in the proceedings of the Society during
the first five years of the decade were Drs. Jeffries Wyman, C. T. Jackson, B. Joy Jeffries,
James C. White, Charles Pickering, Augustus A. Gould, Henry Bryant, Burt G. Wilder,
C. F. Winslow, William Stimpson and Thomas M. Brewer ; Profs. Louis Agassiz, William
B. Rogers and H. J. Clarke; Messrs. 8. H. Scudder, F. W. Putnam, Alexander Agassiz, A.
E. Verrill, Horace Mann, C. J. Sprague, Charles Stodder and Thomas T. Bouvé. Those
who were most active during the last five years were Drs. J effries Wyman, C. T.
Jackson, B. Joy Jeffries, James C. White, Charles Pickering, Hermann A. Hagen, J. B.S.
Jackson, Thomas M. Brewer; Messrs. 8. H. Scudder, Charles Stodder, William T. Brigham,
R. C. Greenleaf, N. S. Shaler, Horace Mann, B. P. Mann, F. G. Sanborn, E. Bicknell, C.
8. Minot and Thomas T. Bouvé.
Walker Prizes. In accordance with the provisions in an agreement made with Dr.
William J. Walker by which the Walker Prize Fund was established, offers were made for
the best and second best. memoirs presented on subjects proposed by a Committee of the
Council, as follows:
Subject for 1865: “ Adduce and discuss the evidence of the coéxistence of man and
extinct animals, with the view of determining the limits of his antiquity.”
140 HISTORICAL SKETCH OF THE
Subject for 1866: “The fertilization of plants by the agency of insects, in HeLa:
both to cases where this agency is absolutely necessary, and where it is only accessory.”
No essays having been presented, or none deemed by the Council worthy of a prize, the
same subjects were proposed again for the years 1867 and 1868, but still without bringing
forth any response from writers. Other subjects were therefore proposed for the two sub-
sequent years, Viz:
For 1869: “ On the etna of arctic and alpine plants in Northern America, with an
enumeration of species.”
For 1870: “The reproduction and migration of Trichina spiralis.”
As with the case of previous subjects, neither of these last elicited any response, or any
of sufficient merit in the estimation of the Council to call for an award. It will be seen
later that those proposed for the immediately succeeding years were more successful in
calling forth essays upon them.
The property of the Society at the end of this decade, besides the building, and the col-
lections and library which were of inestimable value, consisted of investments belonging
to the various funds amounting in the aggregate to $186,898.20; this included, however,
several bequests left under restr ictions, a part of the income of which must be expended
only for special purposes, and can never be available for general uses or expenses.
The library at this time had nearly doubled in size during the ten years, and consisted
of 9396 volumes, and 2677 pamphlets, as before stated. But if the members had cause to
rejoice at the material prosperity of the institution, they too had often cause to lament
the loss of faithful workers for its interests, many of whom had been companions in their
labors. Among those taken by death during the ten years were Dr. B. D. Greene,
Dr. Geo. Hayward, Mr. Francis Alger and Dr. Augustus A. Gould, all original members of
the Society; Dr. Wm. J. Walker, its great benefactor; Dr. Henry Bryant, Mr. Octavius
Pickering, Mr. Thomas Bulfinch, Mr. Horace Mann, Mr. Huntington Frothingham
Wolcott, Mr. Carleton Atwood Shurtleff and Capt. Joseph P. Couthouy.
DecapE V. May, 1870— May, 1880.
1870. The fifth decade commences with the office of President vacant, by the
resignation of Dr. Jeffries Wyman ; with Mr. Alpheus Hyatt, Custodian; Rev. Joshua A.
Swan, Recording Secretary and Librarian; Dr. Samuel L. Abbot, Corresponding Secre-
tary ; Mr. Edward Pickering, Treasurer; Mr. F. G. Sanborn, Assistant in the Museum ;
Miss Lillias Blaikie, Assistant in the Library, and Mr. George Coles, Janitor.
It will be recollected that at the annual meeting the Committees for the several depart-
ments of Comparative Anatomy, Mammals and Microscopy were not elected. At the first
meeting succeeding, the following persons were chosen to these respectively :
Mammals. J. A. Allen, Thomas Waterman, Jr., M.D., J. B. 8. Jackson, M.D.
Comparative Anatomy. Thomas Dwight, M.D., Jeffries Wyman, M.D., J. C. White,
M.D.
Microscopy. Edwin Bicknell, R. C. Greenleaf, B. Joy Jeffries, M.D.
The following changes were made in the members of the Committees as elected at the
annual meeting: J. A. Allen was transferred from the Committee on Ornithology to that
BOSTON SOCIETY OF NATURAL HISTORY. 141
of Fishes and Reptiles, taking N. E. Atwood’s place on the latter; and J. Elliot Cabot
was chosen one of the Committee on Ornithology.
It was decided to change the Janitor’s room from the north-west corner of the base-
ment to the south-west corner, at an expense of $1500, it having been found that
from lack of sunshine in the apartments, the health of members of his family had been
seriously impaired.
Under the new condition of affairs inaugurated by the election of Mr. Hyatt as Cus-
todian, certain changes were desirable in the Regulations and By-Laws. The Librarian,
besides such duties as defined hitherto, was given the sole direction of the Janitor so far as
related to work expected of him in the delivery of publications, care of office, lecture
room, &c. He was also to have sole charge of the assistants in the Library. _The office
hours were fixed at from 9 A. M., until the closmg of the Library in the afternocn, ex-
cept an intermission not exceeding two hours at noon. A vacation of two months was
allowed him during the year.
The Custodian, in addition to duties defined in By-laws, was to have the immediate
charge of the Museum, and the sole direction of the assistants employed there. Also the
sole direction of the Janitor, excepting in such duties as are mentioned in the authority
given the Librarian over him. He was empowered to decide in all cases relative to the
arrangement, care or use of the collections not otherwise specially provided for, and his
decision was to be binding, unless overruled by the Council. When any department suf-
fered by neglect or other cause, he was authorized to take charge of it and report to the
Council. He was required to prepare a report as early as possible on the state of the Mu-
seum, and a plan for the definite arrangement of the collection, so as to best illustrate what
the Society had in view by the formation of its Museum. He was required to give twenty-
four hours each week at least, of undivided attention to the Museum; six hours each
for four days, or eight hours each for three days. A vacation of two months was granted
him.
The Assistant in the Museum was authorized to act for the Custodian in his absence. OFFICE
tH]
mz
AT
BOTANY.
MUSEUM OF THE BOSTON SOCIETY OF NATURAL HISTORY.
es
BOSTON SOCIETY OF NATURAL HISTORY. 145
In October of this year, a large fin-back whale was exhibited in one of the docks
of the harbor, exciting much interest in the community, and attracting a large con-
course of visitors. The matter was brought before the Council by a motion being made
that Dr. Thos. Dwight, Jr. and the Custodian be a committee to procure if possible the
skeleton of this huge animal for the Museum. At the next meeting Dr. Dwight reported
that the carcass had been presented to the Society by Mr. Harvey T. Litchfield, had been
accepted by the committee, and had been towed to and stranded upon Spectacle Island.
Upon the suggestion of Dr. Dwight, three hundred dollars were voted to cover expenses
of transportation, cleaning, and delivering the skeleton at the Museum.
This fine specimen now adorns the main hall of the Museum, being suspended from the
roof of the buildmg. Dr. Dwight gave a large part of a year of scientific labor in the
preparation and final arrangement of the skeleton in the position it now occupies, and to
him the Society is mainly indebted for such an important acquisition to its collection.
The skeleton is undoubtedly the finest in the country, and its perfection is largely due
to his personal care and watchfulness over the carcass until all the bones were safely
removed.
The lack of means at this time necessary to accomplish all the objects the Society had
in view for the instruction of the public in science, weighed upon the niinds of the active
members, as indeed it has ever since. They were, therefore, much gratified to learn from
the President that he had had an interview with Mr. John Amory Lowell, the Trustee of
the Lowell Institute, who had kindly expressed a willingness to provide for several courses
of lectures from the Lowell fund, to be given in our building under the auspices of the
Society ; the lectures to be selected by the Council, and the subjects to be such as per-
tained to natural history.
In accordance with this favorable provision for continued instruction by lectures, seven
courses were given during the season of 1870-71. The first six lectures were by the
Rev. J. L. Russell, on Cryptogamic Botany, the second course of two lectures by
Prof. J. 8. Newberry, on the Cafions of the Colorado and Ancient Civilization of America,
the third course of six lectures by Dr. Thos. Dwight, Jr., on the Comparative Anat-
omy of the Mammalia, the fourth course of four lectures by Dr. P. P. Carpenter, on
a General Sketch of Mollusca, the fifth course of two lectures was by the Rev. R. C.
Waterston, on some of the remarkable natural features of California; the sixth course of
twelve lectures by Prof. W. H. Niles on the Principles of Geology, and the seventh
course of six lectures by the Rev. E. C. Bolles, on the Revelations of the Microscope.
These lectures were generally attended by large numbers and were of a very interesting
and instructive character.
In December, 1870, Miss Blaikie, whose services as assistant in the Library had been
very valuable, and whose presence had always diffused cheerfulness, resigned on account
of her approaching marriage. The thanks of the Council were presented to her for the
very efficient manner in which she had discharged the duties of her office.
1871. By vote of the Council in January of this year, as one of the precautions against
fire; smoking in every part of the building was prohibited. On Feb. 7th, Mr. John Cum-
mings presented to the Society five hundred dollars to be applied for educational lectures
to teachers during the next winter, that of 1871-72. Mr. John Cummings, the President,
Mr. Bouvé, the Custodian, Mr. Hyatt, and Mr. Wm. H. Niles, were appointed a Committee
to employ the gift in accordance with the wishes of the donor. This was the first open
146 HISTORICAL SKETCH OF THE
manifestation made by Mr. Cummings of his intention to afford an opportunity to the
teachers of Boston to become acquainted with natural history. His mind had for some
time dwelt upon a plan by which the public might possess a better scientific culture than
hitherto, and thus share in its refining influences. The general lectures delivered each
winter, though undoubtedly of great service to many, seemed to him to accomplish but
inadequately the object he had in view. He finally came to the conclusion that by inter-
esting the teachers in the several branches of science, and by affording them an oppor-
tunity of receiving practical instruction, better and more lasting results might follow than
from any other course. Possessing themselves a knowledge of botany, of mineralogy, or
of any other branch, they could not fail to exert a great influence upon the many thous-
and minds that came under their instruction, in favor of its study, and thus another gen-
eration be led to show greater interest in pursuits of an elevating tendency. The mem-
bers of the committee other than Mr. Cummings himself, feeling a great interest in the
proposed plan, early issued a circular to the teachers, calling attention to the generous
proposal made by him, and invited their co-operation. A committee on the part of the
masters of the Grammar Schools was appointed to learn the feelings of the teachers gen-
erally on the matter, and to report results. The circular referred to, after mentioning the
proposal of the donor, stated that teachers of every grade were invited; that the lectures
would be given on Wednesday or Saturday afternoons, as the teachers might decide, com-
mencing in October and continuing through the winter at the Museum of Natural
History; that the earlier courses would be on Physical Geography, Botany and Geol-
ogy, and that they would be given by Professors familiar with the object method of teach-
ing and skillful in the use of chalk; that it was designed that the lectures should be
practical and familiar, questions and answers to be allowed, and the whole subject slowly
developed; that the Professors were anxious to know how large classes they could rely
upon before leaving the Museum for summer work, and therefore asked all teachers
who desired to avail themselves of the offer to sign the circular.
It was gratifying to find that the movement excited great interest on the part of those
to whom it was addressed, manifested by the prompt signing of the circular by upwards
of seven hundred teachers. The great success which followed this preliminary action will
be given in the account of proceedings hereafter.
In March of this year, a bequest of one thousand dollars was received from the late Mr.
Sidney Homer for the general purposes of the Society. The Council subsequently voted
to appropriate the amount for New England mammals.
The assistant in the Museum, Mr. Sanborn, was authorized to devote two mornings each
week to giving instruction at the Bussey School of Agriculture, upon his consenting to
have his salary reduced, and Mr. P. S. Sprague was employed to work in the collection of
Insects.
At the annual meeting in May, the Custodian read his report for the year. Much of it
was devoted to general considerations concerning the objects of the policy of the Society
which, having been referred to earlier, will not be dwelt upon here. Of the meetings, it was
stated that there had been eighteen of the Society, with an average attendance of forty-
one persons, eight of the section of Microscopy with an average attendance of eleven, and
BOSTON SOCIETY OF NATURAL HISTORY. 147
seven of the section of Entomology with an average of ten. Thirty-seven written com-
munications had been made by thirty-six persons. Of these, thirteen were presented in
the section of Entomology and thirteen in the section of Microscopy.
Of the publications, eleven signatures of the Proceedings, completing the thirteenth vol-
ume, had been issued, and of the Memoirs, one paper, Historical Notes on the Earth-
quakes of New England, by William T. Brigham, had appeared.
The Library had received during the year by gift, purchase or exchange, 215 volumes,
765 parts of volumes, 183 pamphlets and 22 maps and charts. The use of the Library had
been extended to members of the Institute of Technology and to others pursuing some
branch of natural science, who made application.
Of the departments of the Museum, the Custodian reported as follows :
That of Mineralogy had received a large accession by the purchase of a fine series of
specimens, and by the presentation of several, and the reception of others by exchange.
The whole collection was in perfect order, and every specimen labelled.
The Geological collection was in good order, and fully arranged and labelled. There
had been no important additions.
The Palaeontological collection had had much work done upon it in identifying and
labelling the specimens.
The condition of the Botanical collection was stated to be good, being entirely free from
insects. It contained about 25,000 specimens labelled and glued to papers, and many
hundred duplicates for exchange. A considerable nnmber of plants from various expe-
ditions yet required much study and work for their identification and arrangement.
The department of Comparative Anatomy had been enriched by the important addition
made to it of the skeleton of the whale before mentioned, of the reception and mounting
of which the particulars have been given.
The corals and the sponges of the Radiata had been rearranged by Mr. Sanborn, and
placed on black tablets. The labelling was reported, however, as incorrect in many cases,
and it was recommended that measures should be taken to secure the services of Prof.
A. KE. Verrill for the naming of the species.
Much work had been done on the Insects by Mr. P. 8. Sprague, and it was stated that
the cases recently procured would obviate all danger of future damage from moths and
Anthreni. Valuable additions to the collection had been made by Messrs. Sanborn, Swan,
Trouvelot, Sprague, Dickenson, Minot, and Scudder.
The department of the Mollusca required much attention from able conchologists. The
services of Dr. P. P. Carpenter were obtained for a short period on the general collection,
and Mr. L. Lincoln Thaxter continued work on the New England collection.
The collection of Fishes was in good order and Mr. Putnam had been engaged in label-
ling the specimens, which work was reported as nearly completed.
The Reptiles were stated to be in the same condition as the previous year. The col-
lection was reported as small, and needing many additions.
The department of Ornithology had received many valuable additions of fresh eggs of
Arctic birds from the Smithsonian Institution, and some rare specimens of birds from
Mr. Thure Kumlein.
The Custodian had adopted many expedients to stop the ravages of the Anthreni, but
148 HISTORICAL SKETCH OF THE
with only partial success. Constant work alone, he said was the most effectual. Every
bird had been soaked in benzine or naptha. The great want was such cases as are
the best adapted to keep out the pests that do the injury. Those in use were not fit by
their construction to contain specimens liable to attack.
The department of the Mammalia was reported as rapidly improving. The New Eng-
land collection had received many accessions obtained by expenditure of a portion of the
bequest of Mr. Sidney Homer, the Council, as before stated, having appropriated the sum
thus received for the purpose of adding to this collection.
At the election of officers, Mr. R. C. Greenleaf was chosen Second Vice-President, and
Mr. J. A. Allen one of the Committee on birds in place of Mr. J. Elliot Cabot, resigned.
Walker Prizes. Ata meeting of the Society in June, the President, Mr. Bouvé, pre-
sented the report of the committee on the Walker prizes.
To Prof. Albert N. Prentiss of Ithaca, New York, the first prize of one hundred dollars
was awarded, and to Mr. Daniel Milliken of Hamilton, Ohio, the second, of fifty dollars,
for their competitive essays “On the mode of the Natural Distribution of Plants over the
Surface of the Earth.”
In October, Mr. F. W. Putnam called the attention of the Society to the great loss the
Chicago Academy of Science had suffered in the destruction by fire of their valuable col-
lections in the various departments of natural history and of archaeology, and offered a
resolution of sympathy on the part of the Boston Society of Natural History, and the
offer of such of our publications and duplicate specimens as might be acceptable. This
was ably seconded by Professor Agassiz, who mentioned that the Museum of Comparative
Zoélogy had suffered greatly by the fire, as all of Count Pourtalés’ collections on the Deep
Sea dredging expedition were deposited there. The resolve was unanimously passed.
At a meeting of the Council it was voted that Miss Lucinda Foster be employed to suc-
ceed Miss Blaikie as assistant in the Library.
The death of the Reverend Joshua Augustus Swan, the Recording Secretary and Libra-
rian of the Society, occurred on the 31st of October. At the meeting on November Ist,
the President, Mr. Bouvé, paid the following tribute to his memory:
“1 know not how to utter the deep grief I feel and which I know is shared by you all
in the death of our dear companion, Mr. Swan, the Secretary of the Society. No one, I
am sure, who has had the pleasure of personal intercourse with him, but will feel that he
has lost a near and dear friend. To me his presence even has always seemed a benedic-
tion. Ido not think I ever was so much impressed by the personal character of any man
with whom I have come in contact as with that of Mr. Swan. He seemed always over-
flowing with love for, and a desire to aid, all about him. What might excite in other
men feelings of bitterness or anger, moved him only to sorrow, and no one was more char-
itable in his judgments of the acts of others. Truly we have lost from our circle a man
devoid of guile, upright in conduct, lovable beyond expression, pure in heart and faithful
in every duty. God grant that his family, so dear to him, may have strength to bear the
loss that falls so much more heavily upon them than upon all others.”
The following resolution, with others offered by Prof. J. D. Runkle, was then unani-
mously passed :
BOSTON SOCIETY OF NATURAL HISTORY. 149
“ Resolved, That in the death of Mr. Swan the Society recognizes the loss of not only a
highly efficient officer and member, but of an associate greatly respected for his attain-
ments as a scholar, admired for his noble qualities as a gentleman, and loved for his many
virtues as a man and a Christian.”
Before the close of the year it had become so evidently necessary to have cases of
better construction for the birds than those in use, and in furtherance of the plan of
reorganization adopted, the Council voted that the entire income from the Bulfinch Street
fund for one year, be expended in fitting up cases in the upper gallery for that purpose.
1872. In February, Mr. Edward Burgess was elected Recording Secretary and
Librarian of the Society in place of Rev. J. A. Swan, deceased.
The necessity for the presence of police officers on public exhibition days to preserve
order and to see that the specimens of the Society suffered no harm, was now so apparent
that at the meeting on March 6th, the President was authorized to petition the City Gov-
ernment to appoint such officers.
At a meeting of the Section of Entomology, on the 27th of March, the death of an
active member of that section, Mr. William Hales Dale, was feelingly referred to, and
the following resolution unanimously passed :
“ Resolved, That in the death of our late associate, William Hales Dale, we mourn the
loss of one whose many graces had endeared him to us, and whose researches in natural
science, now abruptly arrested by this inscrutable dispensation, commanded our highest
respect.”
This gentleman bequeathed to the Section of Entomology his cabinet of insects, and
five hundred dollars.
The annual meeting of the Society was held on May Ist. From the report of the
Treasurer it appeared that the receipts, including donations amounting to $1249.26, and
a bequest of $500, exceeded the expenditures $3649.89.
The Custodian’s report for the year embraced much matter of importance, but nothing
more gratifying that what he expressed relative to the Teachers’ School of Science, by
which name he designated the school formed through the liberality of Mr. John Cum-
mings. It will be recollected that this gentleman in the early part of the previous year
presented to the Society $500 to be applied for educational lectures to teachers, to be
given during the succeeding winter. This sum he afterwards increased to cover all’
expenses occurred in carrying out his design, so that instead of $500 he really paid $950
to the Society. The remarks upon the result are here given.
“The Teachers’ School of Science was conceived and has been carried into successful
operation during the past winter, under the patronage of Mr. John Cummings, a well
known member of the Society. Under the direction of the Committee in charge, courses
of lessons have been given in Physical Geography, by Prof. W. H. Niles; on Mineralogy,
by W. C. Greenough; on Zoology, by the Custodian; and one is now in progress by
Dr. W. G. Farlow, of Cambridge, on Botany.
“Prof. Niles delivered the first six. He undertook to give the more general features of
the earth’s surface, and then to apply these general principles to the explanation of the
physical characteristics of Massachusetts. The success of this course may be judged by
the average attendance, which was about six hundred teachers of all grades, and by the
150 HISTORICAL SKETCH OF THE
fact that the methods of teaching geography in some of our public schools are now under-
going a change in favor of the more natural method introduced by him.
“The necessity of actually handling and dissecting specimens obliged the Committee,
after consultation with the masters of the Public Schools, to confine the issue of tickets to
about two for each school. This limited the average attendance at the succeeding lessons,
six on mineralogy, eleven on zoology, and ten on botany, to about fifty-five. Specimens
were distributed and studied at every lesson, and we know that in many instances the
instruction was repeated at the schools. We have without doubt excited an interest in
natural history, which must speedily effect a marked improvement in the system of public
instruction.
“The lectures of the first course by Professor Niles were given in the commodious hall
of the Institute of Technology, the others in the lecture room of the Society. The mate-
rials for the course of zodlogy were largely furnished by Prof. S. F. Baird, United States
Commissioner of Fisheries, and those of the botanical course by Prof. Asa Gray, from the
Botanic Garden at Cambridge.
“‘The expenses of the Society in connection with these lectures were but trifling, and it
received donations incidental to their delivery of considerable value. Among these-were
a full suite of the marine animals of Wood’s Holl, a full and complete collection of the
fauna of the southern coast of Massachusetts, and also a complete collection of the marine
animals of the coast of Maine. These collections were purchased for the Teachers’ School
of Science by Mr. Cummings, but as the duplicates were sufficient for the distribution at
the schools, a series from all of them was first selected for the Museum to be the property
of the Society. Many of the species thus obtained were not before in the cabinet. The
visit of the Custodian to Wood’s Holl to procure the specimens required for the school,
enabled him fortunately to procure a complete set of the skins of sharks, rays, skates and
other large fishes, which were collected by the vessels and the men in the employ of the
U. S. Commissioner of Fisheries.”
The Custodian, in addition to what has been given above, stated that at his solicitation
Mr. Charles J. Sprague had generously given two hundred dollars towards preparing the
skins mentioned above for the New England collection.
The rearrangement of the Museum in accordance with the plan adopted by the Society,
had been commenced by removing the birds to the upper gallery, where suitable cases had
been prepared for their reception. As the experience of the Society may be of service
to some who read these pages, the statement of the Custodian concerning these cases is
given entire. “ Extraordinary precautions were taken to render them absolutely insect
tight. The lumber was very carefully selected and kept heated while the work was going
on. All joints were tongued, grooved and glued. The tops, bottoms and sides were built
into the plastering, the sashes grooved and tongued and locked by wedge-shaped bolts.
The latter were arranged so as to draw the sashes up tightly and firmly against the
tongues at the top and bottom and completely close the fronts of each case. Morse’s
patent brackets were used to suspend the shelving, which hangs upon the wall and has no
connection with the fronts. The success of these precautions is shown by the air tight
condition of the cases. By suddenly opening or closing a sash, one can readily crush in
or burst out the neighboring glass panes. The resistance of the air is so great that it has
BOSTON SOCIETY OF NATURAL HISTORY. 151
to be overcome by a steady slow pressure. The plan was similar to one adopted in the
Smithsonian Institution and was recommended by Professor Baird.”
The Custodian reported that the effort to free the Ornithological collection from the
further ravages of Anthreni had been successful. Some of the birds had been so badly
affected as to require their being operated upon over twenty-five times before they were
entirely freed from the pests.
In the Conchological department much work had been done by Dr. P. P. Carpenter,
and by exchange with him a valuable collection of British shells had been procured for
the Society.
In the department of Entomology also much work had been done by Mr. Sprague in
completing the general collection of Coleoptera placed in the rail cases of the upper gal-
lery. The specimens of Coleoptera were mentioned as numbering about 10,000, and are
in the improved boxes adopted by the Council.
The Mineralogical department had received by donation from Mr. F. Alger, the large
specimens of beryl which have since occupied the window recesses in the hall of entrance
to the Museum, exciting the interest of beholders.
The Geological department had been enriched by the presentation on the part of the
Technological Institute of the magnificent mass of hematite iron ore and jasper which
may be seen with the beryls above mentioned in the hall of the Museum. From Mr. L. 8.
Burbank a series of specimens had been received illustrative of a paper by him upon the
Kozoon canadense, from Dr. $8. Kneeland some lavas, and from Mr. Thomas T. Bouveé a set
of polished marbles.
The other collections were mentioned as in fair condition. Much work was constantly
required upon many of them in consequence of defective cases.
Of the publications two quarterly parts of the fourteenth volume of the Proceedings
had been issued, and four articles of the Memoirs.
The Library had received 424 volumes, 945 parts of volumes, 268 pamphlets and 52
maps and charts.
There had been eighteen See meetings with an average attendance of thirty-two per-
sons, nine of the section of Microscopy with: an average of ten, and eight of the section of
Entomology with an average of eleven. Six Corresponding and thirty-four Resident Mem-
bers had been elected. There had been eighty-two communications, of which seventeen
were before the Entomological section and twelve before the Microscopical section.
Previous to the election of officers, the department of Geology and Minerals was divided,
and at the election the following members were chosen on the respective committees:
Geology; William H. Niles, William T. Brigham and Thomas TT. Bouvé ;—Minerals ;
Thomas T. Bouvé, Charles T. Jackson, M. D., and L. 8. Burbank. The only other change
made at the election was in substituting Dr. Samuel Kneeland in place of Mr. J. A. Allen
on the Committee for Fishes and Reptiles.
Leave of absence was granted in June to the Custodian for one year, his salary to be
relinquished until his return to the duties of his office. He wished to visit Europe and
make himself acquainted with its museums and men of science.
Walker Prizes. In June the Council awarded the first prize of one hundred dollars
52 HISTORICAL SKETCH OF THE
to E. D. Cope, and the second of fifty dollars to Benjamin G. Ferris, for their competitive
essays on “The Darwinian Question; its bearing on the Development of Animal Life.”’
In August of this year, the Council passed votes implying some action on the part of
members not entirely satisfactory, and at the same time defining limits for the future, viz. :
All donations shall be submitted to the Committees of departments, before final depo-
sition.
All work rooms in use by Committees are to be regarded as private and shall not be
exposed to intrusion except by members of the Council.
In September, Prof. Shaler proposed that notices of each meeting be mailed to mem-
bers designating the subjects that would be brought before it, hoping this might lead to
better attendance. Before this time simple notice of other meetings had been published
in two daily papers. The suggestion of Prof. Shaler was approved and adopted.
In October, the Council, in view of the fact that the City Government did not furnish
regularly such police officers as were necessary on public days, passed the following vote :
“That in consequence of injuries done the Society’s building and collection by visitors,
the Museum will be closed to the public after October 19th, until measures can be taken to
properly protect the property; and the Secretary is instructed to advertise the same in
six daily papers for one week.’ This determined action led to officers being furnished for
a while satisfactory to the Society.
During the summer of the year, there had been three field excursions of the members
of the Entomological section, resulting in their obtaining a large collection of specimens.
The places visited were first Mattapan and vicinity, second Peabody, and third, Waltham
and Waverly.
1875. The Museum of the Society was closed to the public on the first day of March,
because the police officers had ceased to attend. This led to an interview on the part of
the President, with the Mayor and Chief of Police, resultmg im a promise on their part
that officers should be present on public days.
At the annual meeting in May, in the absence of the Custodian abroad, the Secre-
tary, Mr. Burgess, presented the yearly Report upon the condition and operations of the
Society. From this is given the following abstract.
During the year, two Honorary, one Corresponding, and twenty Resident Members had
been elected.
There had been eighteen general meetings of the Society, six of the section of Ento-
mology, and six of the section of Microscopy. The average attendance at the general
meetings had been twenty-five, showing perhaps a diminished interest in them.
There had been four courses of Lowell Lectures given under the direction of the Society,
and a fifth was in progress. The first was upon “The Principles of Zodlogy,” by Prof.
Edward $8. Morse, and had an average audience of sixty persons; the second upon “ Min-
eralogy,” by Mr. L. 8. Burbank, and had an average audience of forty persons; the third
upon “ Evenings with the Microscope,” by the Rev. KE. C. Bolles, and had an average audi-
ence of two hundred and fifty, and the fourth on “ Chemical and Physical Geology,” by
Prof. T. Sterry Hunt, and had an average attendance of one hundred and fifty. The fifth
course by Mr. B. Waterhouse Hawkins, upon “ Comparative Anatomy,” so far as they had
progressed, had had an average attendance of fifty.
The Teachers’ School of Science was necessarily suspended, much to the regret of a
great number who desired to avail themselves of its privileges. The publications had
BOSTON SOCIETY OF NATURAL HISTORY. 153
been satisfactory. Two numbers of the Memoirs and two parts of the Proceedings had
been issued.
The additions to the Library during the year had been 277 volumes, 852 parts of vol-
umes, 189 pamphlets and 20 maps and charts.
In the Museum the necessary alterations in the cases had progressed as fast as regard to
financial considerations warranted. New and admirable ones for the reception of the valu-
able Herbarium presented by John Amory Lowell, Esq., had been made and were in use.
The change in the location of the collections of the various departments so as to bring
them in the designed relation to each other had proceeded steadily, and at this time the
work was so far accomplished as to enable visitors to the galleries, by entering the first
and passing round to the right, to study the zodlogical collection in order, beginning with
the sponges and passing to the higher groups.
A beginning had been made on a comprehensive system of labelling, a great step
towards publishing a visitors’ catalogue, so important as a means of instruction.
Much work had been done on the collections during the year by Messrs. Emerton and
Sprague, the former having labelled over 2,000 bottles of Crustacea and many of New
England worms and radiates, and the latter being engaged nearly all the year on insects.
Dr. Carpenter had likewise done much in studying our Mollusca and in labelling them.
They were sent to him at Montreal for identification.
Valuable donations had been received from many parties, among them birds from the
Smithsonian Institution, insects from Mr. Sanborn and Mr. Ernest Papendiek, a fine fossil
tree from the Joggins Mine, Nova Scotia, presented by the Institute of Technology and a
beautiful Japanese crystal globe by Mr. Thomas Gaffield.
The collection of Minerals had been much enriched by a large and valuable addition
made to it by purchase from Dr. Beadle of Philadelphia. The expense was but trifling to
the Society, as two members paid a large sum towards the purchase, and considerable
money was received from the sale of duplicates.
The number of visitors to the Museum seemed steadily to increase, schools often coming
with their teachers. It was open to the public daily during the Peace Jubilee, so called,
when the City provided special police for its protection.
The Treasurer’s account for the year exhibited an excess of receipts over expenditures
of $1,342.98. The Society suffered a loss of $6,280 from the great fire of November,
1872, it having held stocks in insurance companies that became worthless. It was obliged
to pay also assessments to the amount of $2,346, levied by the companies.
The changes made in the officers at the election were as follows: John Cummings was
chosen on the Committee of the department of Geology, from which William T. Brigham
and Thomas T. Bouvé resigned. J. Henry Blake was chosen on the Committee of Mol-
lusks in place of John Cummings, transferred to Committee on Geology. Richard Bliss,
Jr., was chosen on the Committee for Fishes and Reptiles in place of Dr. D. Humphreys
Storer resigned. J. H. Emerton was chosen on the Committee for Mammals in place of
Thomas Waterman, Jr., M. D., resigned. Samuel H. Scudder was chosen on the Committee
for Insects in place of F. G. Sanborn.
In June of this year the gallery was added, with the cases, to the rear library apartment.
The want of more room for books had been long felt but was now indispensable. A case
was also built for the reception of the moose which had been procured for the Society.
154 HISTORICAL SKETCH OF THE
At a meeting of the Council it was voted to present the specimens belonging to the
Society which were formerly in the Ethnological department to the Peabody Museum.
Walker Prizes. The first prize of sixty dollars was awarded in June to Dr. A. S. Pack-
ard, Jr., for an essay by him on the subject proposed for this year ‘“ On the development
and transformations of the common house-fly.”
The Grand Honorary Prize was awarded this year by the Council to Alexander Agassiz
for his investigations in the Embryology, Geographical Distribution, and Natural History of
the Echinoderms, and the sum of one thousand dollars, the highest amount the Council
was authorized to grant, appropriated for the purpose.
In November, Mr. William 'T. Brigham offered to present to the Society the casts of the
busts of several naturalists, if it would pay the cost of transportation from Europe. The
offer was accepted with thanks; these busts, being those of Cuvier, A. L. de Jussieu,
Adrian de Jussieu, Buffon, Linnzeus, and Charles Girard, were subsequently received and
now adorn the main hall of the Museum.
A meeting of the Council was called by the President on December 15th. Upon assem-
bling, he addressed the members, stating that in view of the great calamity that had befal-
len the community and particularly upon all interested in scientific culture and progress,
by the death of our distinguished member Louis Agassiz, he had thougnt it well that they
should come together and take such immediate action in relation thereto, as might seem
fitting upon the occasion. He then recommended as a manifestation of respect to the
memory of our honored associate, that the usual second monthly meeting be omitted on
the next Wednesday evening and that we communicate to the family of Professor Agassiz
our wish to be present at his obsequies if this should be agreeable to them. The pro-
posed action was taken.
Louis AGASSIZ.
874. The meeting of the Society on January 7th partook largely of a memorial char-
acter, the proceedings generally relating to the death of our distinguished member, Prof.
Louis Agassiz. After calling the members to order, President Bouvé addressed them as
follows :
Since we last met an event has occurred that has brought deep sorrow to our hearts,
and indeed moved with grief those of the whole community; for whilst in the death of
the great naturalist we have lost a distinguished Honorary Member, a pioneer in the paths
we love to tread, one whose name deservedly ranks high among the most illustrious of
those who have explored the world of matter and of life, the great body of the commun-
ity has lost one whom it has long and justly regarded as pre-eminently the great teacher
in science, the man of all men, who inspired the love of knowledge, and who was never
weary in his efforts to impart the best he knew to every seeking soul.
Truly all alike, learned or unlearned, high in attainments and position, or only humble
seekers of truth, may well weep the loss of him, whose presence alone was to everybody
an inspiration.
To those of us who have been in any degree sharers in his labors, or companions in lit-
erary or scientific circles, his loss is irreparable.
BOSTON SOCIETY OF NATURAL HISTORY. 155
The fine physical form, the countenance ever beaming with feeling and intelligence, the
expressive utterances, and above all, that subtle influence which came from the whole
being of the man, alas! that these are now only matters of memory.
But it is not for me to dwell upon the event I have alluded to. For a fit expression of
the loss sustained by the Society, we have the privilege of looking to one whose valuable
services to it in its earlier days we have not forgotten, and who was one of the first among
scientific men to welcome to our shores and our companionship the great naturalist. I
need not say I refer to our former President, Mr. George B. Emerson, whom I now have
the pleasure to introduce to you.
Upon the close of the President’s remarks, Mr. George B. Emerson gave an interesting
address, a large part of which is here presented.
I thank you, Mr. President, for the great honor you do me by inviting me to say some-
thing before, and in behalf of, your Society, in commemoration of the most distinguished
naturalist that has appeared among us. You know how reluctantly I consented to speak,
and I feel how madequately I shall be able to represent the Society. Yet I cannot but
admit that there is some apparent propriety in your request. I was one of those who
formed this Society. All the others who first met, except one, are gone; Dr. B. D.
Greene, Dr. J. Ware, F. C. Gray and the rest. My old friend, Dr. Walter Channing,
alone, in whose office most of the first meetings were held, is still living. Moreover, while
I was in the seat you now occupy, it was agreed by my associates that it was very proper
and desirable that a survey of the State, botanical and zoélogical, should be made, to
complete that begun by Prof. Hitchcock in Geology. At their request I presented to Gov.
Everett a memorial suggesting this.
Our suggestion was graciously received. Gov. Everett brought the subject before the
Legislature, in which some friends of natural history in the House of Representatives had
already been acting toward the same end ; an appropriation was made, and he was author-
ized to appoint a commission for that purpose. On that commission four members of this
Society were placed; the reports of three of whom, Dr. Harris, Dr. Gould and Dr. Storer,
have been, and still continue to be, considered of signal and permanent value, and Mr.
Agassiz himself regarded them as among the best reports ever made. It has given and
still gives me the greatest satisfaction to know that the Society has been continually going
forward, and that it is now more prosperous than ever.
A little more than twenty-seven years ago, as I was sitting in my study, a message
came to me that two gentleman desired to see me. They were immediately admitted, and
Dr. Gould introduced me to Louis Agassiz. His noble presence, the genial expression of
his face, his beaming eye and earnest, natural voice, at once gained me, and I responded
cordially to his introduction. He said, ‘“‘I have come to see you, because Dr. Gould tells
me that you know the trees of Massachusetts; I wish to be made acquainted with the
Carya. I have found the leaves and fruit of several species in the Jura Mountains, where
they were deposited when those mountains were formed; but, since that time, none have
been found living in Europe. I want to know them as they are now growing.”
I told him that I knew all the species found in New England, and should be glad to
show them to him. “But I have,” I said, “presently to begin my morning’s work. If
you will let me call on you immediately after dinner, I shall be glad to take you to them.”
156 HISTORICAL SKETCH OF THE
At the time fixed, I called on him at his lodgings and took him, in my chaise, first to
Parker’s Hill, where one species of hickory grew, then through Brookline, Brighton and
Cambridge, where two others were found, and to Chelsea, where a fourth, and one that
might be a variety, were growing. I pointed out the characteristics of each species in
growth, branching, bark, fruit and leaves, and especially in the buds. He listened with
the most captivating attention, and expressed surprise at my dwelling upon the peculiari-
ties of the buds. “I have never known the buds to be spoken of as characteristic,” said
he; “that is new to me.”
We drove on to Chelsea Beach, which stretches off several miles, — apparently without
end, — and, as the tide was very low, was then at least a quarter of a mile wide. He was
charmed with everything, expressing his pleasure with all the earnestness of a happy
child, hardly able to restrain himself in his admiration and delight. He told me that he
had never before been on a sea-beach, but that he was familiar with the undulations and
wave marks on the old beaches laid open in the Jura Mountains. ;
I need not say what a pleasant drive this was. I had long felt great interest in various
departments of Natural History, but had been so fully occupied with my own duties, as a
teacher, that I had been able to indulge myself fully, and that for a small part of the year,
in one only. Here was a companion who was intimately acquainted with all, and with the
most distinguished men who had been advancing them, and who was ready and happy to
communicate wealth of information upon every point I could ask about.
The news of the death of Agassiz caused a throb of anguish in millions of hearts. Such
a death is a loss to mankind. What death among kings or princes in the Old World, or
among the aspirants for power, or the possessors of wealth, in the New, could produce
such deep-felt regret?
He is gone. We shall see his benignant face and hear his winning voice no more ; but
we have before us his example and his works. Let us dwell, for a few moments, on some
features in his life and character, as an inspiration and a guide, especially to those who
mean to devote their leisure, or their life, to natural history, or to the great work of
teaching! What a change has taken place, in the whole civilized world, and especially in
this country, in men’s estimation of the value and interest of these pursuits, since he
began his studies. To whom is that change more due than to Agassiz?
He was endowed by nature with extraordinary gifts. His fascinating eye, his genial
smile, his kindliness and ready sympathy, his generous earnestness, his simplicity and ab-
sence of pretension, his transparent sincerity ;—these account for his natural eloquence
and persuasiveness of speech, his influence as a man, and his attraction and power as a
teacher. For the development and perfecting of many of his highest and most estimable
qualities of mind and character, Mr. Agassiz was doubtless indebted to his noble mother,
who, judging from every thing we can learn, was a very rare and remarkable woman.
To the quiet, homely, household duties, for which the Swiss women are distinguished, she
added unconsciously, very uncommon mental endowments, which she wisely cultivated by
extensive reading of the best authors, and by conversation with the most intelligent per-
sons.
Trained by such a mother, Agassiz grew up in the belief of a Creator, an infinite and
all-wise Intelligence, Author and Governor of all things. He was sincerely and humbly
BOSTON SOCIETY OF NATURAL HISTORY. 157
religious. During his whole life, while exploring every secret of animal structure, he saw
such wonderful consistency in every part, that he never for a moment doubted that all
were parts of one vast plan, the work of one infinite, all-comprehending Thinker. He
saw no place for accident, none for blind, unthinking, brute or vegetable selection.
Though he was a man of the rarest intellect, he was never ashamed to look upwards and
recognize an infinitely higher and more comprehensive Intellect above him.
Agassiz’s mother-tongue was French, but both this and German were in common use
in the Pays de Vaud. He lived, for years afterwards, in several parts of Germany, and
thus attained, without special study, the rich language which we Americans have to give
so much time to acquire; and he lived, long, a studious and laborious life in Paris, where
he became intimately acquainted with Cuvier and other distinguished naturalists, and per-
fectly familiar with the French language in its best form. More than once, when he was
putting his note-book into his pocket, he told me he knew not whether he had made his
notes in German or in French.
Agassiz’s universality of study and thought suggest a precious lesson. It is never safe
to give one’s self entirely to one study or to one course of thought. The full powers of
the mind cannot so be developed. Nature is infinite; and a small part of one kingdom
cannot be understood, however carefully studied, without some knowledge of the rest.
Agassiz took a large, comprehensive view of the whole field of natural history ; his
thorough education and intimate acquaintance with the works of the highest men in sey-
eral walks, Von Martius, Cuvier, Humboldt, and others, made it possible for him to do it,
and he then fixed on certain departments, and, for the time, he gave himself entirely to
one.
Whenever Mr. Agassiz undertook a special work, he prepared himself for it by a care-
ful study of whatever had been done in that particular line by all others. He had seen,
everywhere, indications of the action of ice. He determined to investigate. He began
by reading all he could find upon the subject, and then set himself to observe, patiently
and carefully, what was taking place in the glaciers themselves. He gave the leisure of
several years to this examination, and then felt himself ready to observe the effects of
similar action in former ages and distant regions. The opinions of such an observer, after
such a preparation, cannot be without authority and value; and it is not surprising that
he should not himself have been willing to yield them to those of others who had never
given the same study to the subject.
His example as a teacher has been of inestimable value, as showing the importance of
the best and largest possible preparation, teaching by things really existing and not by
books, opening the eye to the richness and beauty of nature, showing that there is no
spot, from the barren sea-beach to the top of the mountain, which does not present objects
attractive to the youngest beginner, and worthy of, and rewarding, the careful considera-
tion of the highest intellect.
In 1855, with the aid of Mrs. Agassiz, who, from the beginning, did a great deal of the
work, Mr. Agassiz opened a school for young ladies. For this he was, in all respects,
admirably well qualified. The charm of his manner, his perfect simplicity, smcerity and
warm-heartedness, attracted every pupil, and won her respect, love and admiration. He
knew, almost instinctively, what we teachers have to learn by degrees, that we cannot
158 HISTORICAL SKETCH OF THE
really attract, control and lead a child, and help to form his habits and character, without
first loving him; that nothing in the world is so powerful as real disinterested affection.
He gave, himself, by lectures most carefully prepared, an hour’s instruction, real instruc-
tion, every day. All his pupils retain their respect and love for him, and some keep the
notes they made of his talks, and read them with delight. The school was continued for
seven years, with great success, attracting pupils from distant parts of the country.
One of the secrets of his success as a teacher was, that he brought in nature to teach for
him. The young ladies of a large school were amused at his simplicity in putting a grass-
hopper into the hand of each, as he came into the hall; but they were filled with surprise
and delight, as he explained the structure of the insect before them, and a sigh of disap-
pointment escaped from most of them when the lesson, of more than an hour, closed. He
had opened their eyes to see the beauty of the wonderful make of one of the least of God’s
creatures. What a lesson was this to young women preparing to be teachers in the public
schools of our Commonwealth, showing that in every field might be found objects to
excite, and, well explained, to answer the questions, what? and how? and why? which
children will always be asking.
He had all the elements necessary to an eloquent teacher: voice, look and manner, that
instantly attracted attention ; an inexhaustible flow of language, always expressive of rich
thoughts, strong common sense, a thorough knowledge of all the subjects on which he
desired to speak, a sympathy with others so strong that it became magnetic, and a feeling
of the value of what he had to say, which became and created enthusiasm. He thus held
the attention of his audience, not only instructing and persuading them, but converting
them into interested and admiring fellow students.
The advent of Agassiz is to be considered a most important event in the Natural His-
tory of the country. The example of his character, his disinterestedness, his consecration
to science, his readiness to oblige even the humblest and most modest, his superiority to
self-interest, his sincerity and absence of all pretension, his enthusiasm in all that is noble
—all these recommended not only him, but the science he professed. Never was a life more
richly filled with study, work, thought; and all was consecrated, not to the benefit of
himself, but to the promotion of science for the good of his fellow creatures.
For many years Mr. Agassiz has seemed to live only for the advancement of natural
history, by the building up of his Museum, for which he had collected material, of the
greatest possible diversity, which would, properly cared for and arranged, form a Museum
superior in numbers and variety to any similar collection in the world. Shall this great
work be allowed to fail ?
Let every person who honors the name of Agassiz, say No! Let every one who regrets
that the great main support of the noble structure is taken away, resolve that it shall not
fail, but that, so far as depends on him and what he can do, it shall go on and be
built and filled, and stand firm, a glorious temple of science forever.
At the conclusion of Mr. Emerson’s address Rev. Dr. R. C. Waterston in response to
an invitation from the chair, spoke as follows of Prof. Agassiz’s connection with the Cen-
tennial Anniversary of the birth of Humboldt :
At a meeting of the Boston Society of Natural History, June, 1869, it was moved and
voted that a celebration of the Centennial Anniversary of the birth of Alexander von
BOSTON SOCIETY OF NATURAL HISTORY. 159
Humboldt, by this Society, was highly desirable. It was also suggested that Professor Agas-
siz be invited to deliver an address upon the occasion. The invitation was extended to
Professor Agassiz and accepted. Various circumstances connected with that memorable
occasion, at a time like the present, come to the mind with peculiar power.
In Professor Agassiz’s public address, his introductory remarks were, ‘I am invited to
an unwonted task. Thus far I have appeared before the public only as a teacher of nat-
ural history. To-day, for the first time in my life, I leave a field in which I am at home,
to take upon myself the duties of a biographer.”
Thus this Society had the privilege of inviting Professor Agassiz to a duty (most nobly
fulfilled), which without this invitation in all probability he would never have entered
upon. That being as he himself expressed it, the first time im his life he had undertaken
such a task; it was also, as we now know, destined to be the last. This event which, on
every account, had great interest, for these reasons possesses a solemn and sacred import.
That anniversary we would keep in grateful remembrance, forming as it does, in connec-
tion with many reminiscences, an added and, may we not say, an indissoluble tie between
us and him.
At the time when the invitation was extended to Prof. Agassiz, he was overwhelmed
with work; while by previous labor, both body and mind had already been overtaxed.
Under such circumstances, it would have appeared next to impossible for him to comply
with the request of the Society, yet so desirous was he to meet their wishes that he under-
took the task.
On the 3d of July Prof. Agassiz wrote as follows :—
“For weeks past I have mtended every day to write to you, but the fact is that just
now I have scarcely time to breathe, and with the sincere desire of accepting the invita-
tion tendered to me through you, I have been trying to free myself in some degree of
the tasks before me. It is not so easy to do this as it seems.
“However, I write now to say that I will do my best so far as it depends upon me, to
make the Anniversary of Humboldt worthy of his memory, and serviceable to science in
the country. The task will be a difficult, and in some respects a painful, one to me, none
the less because of my personal relations with him. But I will do my best, and I beg
you to believe that the confidence placed in me by those who wish to make this occasion
a marked day, has gratified and touched me deeply.
“| wish you would express this sentiment in my behalf, and add that my great cause of
hesitation has been the fear that I might not satisfy the expectations of those who have
thus honored me. Believe me,
“ Kver truly yours,
“‘ Louis AGASSIZ.”
In a note dated July 21st, he says, “I have been completely prostrated this week.”
Yet notwithstanding this exhaustion (doubtless far beyond what was imagined by his
most intimate friends, and, added to this, serious illness among the members of his own
family, his son leaving for Europe, on account of his health, the very day upon which the
address was delivered), Professor Agassiz most conscientiously devoted himself through the
160 HISTORICAL SKETCH OF THE
sultriness of an intensely hot mid-summer, to the work of preparation. Few are prob-
ably aware what a mind like his would, under such circumstances, consider requisite.
Nothing was to be taken for granted; not even the memory of former investigations
would be accepted without passing through the process of examination. Every step was
to be measured, with critical exactness, through the long progress of Humboldt’s scientific
career.
Is there not exemplified in this fact, one of the marked characteristics of Prof. Agas-
siz’s mind? Absolute thoroughness; sifting every question and principle down to its first
elements; tracing every thought, from its earliest germ through each successive develop-
ment, until the final result is reached.
In order to secure freedom from all interruption during these researches, he asked for a
room at the City Library, which was readily granted. Here he could gather about him
papers and books, which during his absence would remain undisturbed. Mr. Winsor, the
efficient and obliging Superintendent, tells me that for more than a month Prof. Agassiz
passed at least three or four days of each week, from nine o’clock in the morning until
generally three o’clock in the afternoon, and that during this time he called for more than
two hundred volumes in different languages, always desirmg to read each work as it orig-
inally came from the mind of the author. Thus every work which Alexander von Hum-
boldt ever wrote passed under careful review; not only every volume, but every pam-
phlet, with the exception of one, which could not be found in this country.
On the 4th of September he wrote me,
“| have only yesterday finished gathermg my materials, and have not yet begun pre-
paring my address.”
He adds — “ My friends will never know what anxieties I have to go through on this
occasion.”
Six days after this I received the following :—
“ Nahant, Sept. 10th, 1869.
“My Dear Sir:
“TJ have succeeded this evening in bringing to a close my draft of an address; not
exactly as I would like to deliver it, but such as I may be compelled to read should the
occurrences of the day unfit me for an extemporized discourse, which I believe might be
more effective.”
It would thus appear that even after the address was written, he hoped to give, not
what he had embodied in manuscript, but the result of which that would be the basis, in
the form of an extemporized discourse, for which, as all know from his constant habit of
speaking without notes, he possessed the very highest qualifications.
However, to meet every contingency, he adds :—
‘As I go to-morrow to Cambridge, I will try to have my illegible manuscript set in
type, that I may myself be able to read it. At the same time I shall see how my dia-
grams are progressing, and if satisfactory, forward them at once to the Music Hall.
“ Very truly yours,
“TL, AGASSIZ.”
BOSTON SOCIETY OF NATURAL HISTORY. 161
On the 15th of September he wrote :—
“ DEAR Sir :—
“T hope I may have a proof of my address for your reporters by the time I reach Bos-
ton to-morrow, which I shall hand to you. My diagrams went to the Music Hall Saturday
afternoon, with the palm-branch worn on Humboldt’s funeral.
“The pen taken from his desk the day he died, and sent to me, I shall bring myself,
fearing it might be lost if left with bulkier objects. Very truly yours,
“LL. AGASssiz.”’
Such were some of the preparatory labors connected with the address which was to be
heard on that Centennial Anniversary by literary and scientific men from every part of the
country. Seldom has there been an occasion in the history of New England, which has
brought together so brilliant an assemblage of able scholars and prominent men in every
department of thought.
At the evening reception, Mr. Ralph Waldo Emerson, in speaking of what he termed
the “delightful address in praise of Humboldt,” concentrated his estimate in this charac-
teristic declaration, “our eminent professor never delivered a discourse more wise, more
happy, or of more varied power.”
These words expressed the universal feeling. And the address, so cordially welcomed
by those who heard it, was received when published with equal favor on both sides of the
Atlantic.
This very day, I was reading a letter by Sir John Herschel expressing his commen-
dation; and in the Life of Alexander von Humbolt, edited by Professor Karl Bruhns,
director of the observatory at Leipzig, the address by Agassiz is referred to, both in the
preface, and in the body of the book. In the latter, a lengthy extract is introduced.
[See Vol. H, pp. 179, 180 and 181.]
There were several occasions upon which Alexander von Humboldt extended such
attention and kindness to Agassiz, at a time when encouragement was most needed, that
it seems but an act of justice and gratitude to recall them here. The first was related by
Agassiz some fifteen years ago, at a meeting of the American Academy of Arts and
Sciences, soon after Humboldt’s death.
“May I be permitted,” he said, “to tell a circumstance personal tome? I was only
twenty-four years of age when in Paris, whither I had gone with means given me by a
friend, but I was at last about to resign my studies from want of ability to meet my
expenses. Professor Mitscherlich was then on a visit in Paris, and I had seen him in the
morning, when he had asked me what was the cause of my depressed feelings, and I told
him I had to go, for I had nothing left. The next morning as I was seated at breakfast,
in front of the yard of the Hotel, where I lived, I saw the servant of Humboldt approach.
He handed me a note, saying there was no answer and disappeared. I opened the note,
and I see it now as distinctly as if I held the paper in my hand. It said:
‘My Frienp :—
‘I hear that you intend leaving Paris in consequence of some embarrassments. This
shall not be. I wish you to remain here as long as the object for which you came is not
accomplished. I enclose you a check of £50. It is a loan which you may repay when
999
you can.
162 ; HISTORICAL SKETCH OF THE
That one act of Humboldt, at the turning point in the life of Agassiz, may have affected
the whole course of his active career. If Sir Humphrey Davy could say “ My best dis-
covery was Michael Faraday,’—— what shall we say of this discriminating instance of gen-
erous encouragement, which perhaps gave to us Agassiz as a man of science.
In the address upon Humboldt, Agassiz speaks of his studies at Munich, whose Uni-
versity had opened under the most brilliant auspices, and where nearly every professor
was prominent in some department of science or literature. “These men,” he says,
“were not only our teachers but our friends. We were the companions of their walks
and often present at their discussions.” ‘“ My room,” he adds, “‘ was our meeting-place, bed-
room, study, museum, library, lecture-room, fencing-room, all in one. Students and pro-
fessors used to call it the little Academy.”
It was at this time that Humboldt was preparing for his Asiatic journey. Agassiz was
anxious to accompany him, and asked that he might join the expedition as an assistant.
This was the beginning of his personal acquaintanceship with Humboldt.
A graphic picture is presented of the student’s life in Paris, in the days of Louis Phil-
ippe, when Cuvier, just the age of Humboldt himself, was active and ardent in research,
his salon frequented by statesmen, scholars and artists.
Cuvier was then giving a course of lectures, in the College of France, on the History
of Science. “Humboldt,” says Agassiz, “attended these lectures regularly; I had fre-
quently the pleasure of sitting by his side, and being the recipient of his passing criti-
cism.” At this period, Humboldt had his working-room at the Rue de la Harpe.
“There,” continues Agassiz, “it was my privilege to visit him frequently. There he
gave me leave to come, to talk with him about my work, and consult him in my diffieul-
ties.”
At this time Agassiz was twenty-four years of age, and Humboldt sixty-two.
“JT had recently,’ says Agassiz, “taken my degree as Doctor of Medicine, and was
struggling, not only for a scientific position, but for the means of existence also. I have
said that he gave me permission to come as often as I pleased to his room, opening to me
freely the inestimable advantages which intercourse with such a man gave to a young
investigator like myself. But he did far more than this, occupied and surrounded as he
was, he sought me out in my lodging.”
Here he gives a most interesting account of a visit from Humboldt, at Agassiz’s narrow
quarters, in thé Hotel du Jardin des Plantes. After which is an invitation from Humboldt
to meet him at the Palais Royal,— where they dine,— “a rare indulgence,” says Agassiz,
“for a young man, who could allow himself few luxuries.” “ Here,” he adds, “ for three
hours, which passed like a dream, I had him all to myself. How he examined me, and
how much I learned in that short time! How to work, what to do, and what to avoid ;
how to live, how to distribute my time; what methods of study to pursue; these were the
things of which he talked to me, on that delightful evening.”
When we reflect upon the extended reputation acquired by Agassiz before he left
Europe; of that visit to this country which led him gladly to adopt it as his home, and of
the untiring zeal with which he devoted to it the best years of his life; shall we not hold
in grateful remembrance the man who gave to him, at the most critical moment, the cor-
dial hand of friendship, and who by his cheering words, inspired fresh ardor, and a hope
which no after trial could extinguish ?
BOSTON SOCIETY OF NATURAL HISTORY. 163
It is more than a pleasant picture, it is a lesson for all time, and should awaken, through
generations, the desire generously to encourage and wisely to aid.
It was in this spirit that a “ Humboldt Scholarship” became associated with the Hum-
boldt Anniversary. Through personal solicitation on the part of the committee the sum
of seven thousand dollars was subscribed to form a permanent fund, the income of which,
under the direction of the Faculty, was to be solely applied to the aid of young and needy
students, while pursuing their preparatory studies at the Museum vf Comparative Zodlogy,
in Cambridge. The founding of this scholarship was the voluntary proposition of this So-
ciety as a token of sympathy and hearty good-will.
The gratification of Professor Agassiz was at once expressed. In a note written July
3d, he says:
“ Your proposition to connect a scholarship with the Museum of Comparative Zodlogy,
in commemoration of this occasion, has had great weight with me. I believe that such an
arrangement will not only be an ever-returning memento of the solemnities of this 14th of
September, but, if properly conducted, will contribute to the real advancement of Natural
History among us.”
The origin of this scholarship was by some misapprehended. It was supposed to have
been suggested, directly or indirectly, by Professor Agassiz. This is an entire mistake.
No one could feel more sensitive than he himself did upon this subject. His feelings are
frankly expressed in a note which I received from him, after he had read a paragraph in
the daily papers, referring this movement to him.
“My Dear Sir: — ;
“Tn a paper to-day, giving an account of the proposed celebration, ‘a plan’ is alluded
to ‘of Mr. Agassiz for founding a Humboldt Scholarship in the institution of which he is
the head.’
“This is no doubt a simple error of the press, but I should be very sorry to have it
stand. It would have been very ungracious in me, and would have shown, to say the
least, a great want of delicacy, had I suggested an endowment for the Museum in which I
am personally interested. It was, as you know, a proposition made spontaneously, without
any reference to me. And though I rejoice in it and feel doubly unwilling, on account of
this offer, to shrink from the responsibility connected with the invitation of your com-
mittee, yet the suggestion coming from me, under the circumstances, instead of being
appropriate, would be wholly unbecoming. You will excuse me for troubling you about
this, but I am sure you will see that it places me in an awkward position.”
If in any mind there should exist even the shadow of a misapprehension upon this sub-
ject, these words will serve to explain fully both the feelings of Prof. Agassiz and the
exact facts of the case.
At the close of his public address of the 14th of September, he says:
“] have appeared before you as the representative of the Boston Natural History So-
ciety. It was their proposition to celebrate this memorable anniversary. I feel grateful
for their invitation, for the honor they have done me. I feel still more grateful for the
generous impulse which has prompted them to connect a Humboldt Scholarship, as a me-
morial of this occasion, with the Museum of Comparative Zodlogy at Cambridge.”
164 HISTORICAL SKETCH OF THE
Thus, Mr. President and gentlemen, while we cannot but deeply mourn the vast loss
which this community and the whole country has sustained by this bereavement, we
rejoice in that friendly relationship which so long existed between us, and are thankful
that one of the last great public utterances of his life was given under the auspices of this
Society.
And now that his life, so beneficently crowded with activity and usefulness, has closed
to us in this sphere of being, we are grateful that our mutual efforts established what will
not only be a perpetual bond of union between this Society and the institution of which he
was the honored head, but which, we trust, through successive years, may prove a source
of practical help and encouragement to numberless students, who, by their future efforts,
may extend the boundaries of knowledge, thus aiding in the work of human progress,
while they carry forward to yet further completion, those investigations and discoveries
which, in our own day, have given immortality to the names of Humboldt and of Agassiz.
There was much feeling manifested at this time concerning the safety of the Museum
and collections, now of inestimable value. At a meeting of the Council, the Custodian
brought up the question of prohibiting the use of workrooms after dark. This led to the
appointment of a committee to take the whole subject of securing the building and con-
tents against fire. At a subsequent meeting, the President, in behalf of this committee
of which he was chairman, reported, recommending several changes in regard to unsafe
gas fixtures, and the erection of stand pipes for water. By vote, the committee was
authorized to do all they deemed wise and necessary in the matter.
In January, the President, Mr. Bouvé, again brought before the Council the necessity
of continued action in order to place the collections of the Museum in proper sequence,
in accordance with the plan of arrangement which had been adopted. He thought that
extensive changes were desirable at once. These would involve the fitting up of two gal-
leries in the side rooms of the main hall for the reception of the Botanical collection, as
well as the fitting up of the north rooms on the first floor for the Mineralogical and Geo-
logical collections. To carry out these changes would require an expenditure of about
five thousand dollars. After discussion, a committee was appointed, consisting of Messrs.
Bouvé, Hyatt, Brigham, Cummings and Scudder, to consider the matter and report at the
next meeting to be held a week later. When the Council again met, the President in
behalf of the committee, presented plans and estimates relative to the proposed alterations.
He stated, however, that the majority of the committee recommended that the Botanical
collections be placed in the gallery on the north side of the main hall, rather than on the
south side. To this, Mr. Brigham, in behalf of a minority of the committee, strongly
remonstrated. A prolonged discussion followed. The Council, after mature deliberation,
finally voted, with but one dissenting voice, to make the alterations as proposed by the
majority of the committee, and full authority was given the President, Custodian and
Treasurer to carry them out. The Council also voted that the southeast room in the base-
ment be fitted up as a work room under the direction of the same parties.
As indicative of thought given by members of the Society to matters affecting the pub-
lic interest not pertaining especially to its work, it may be stated that in February of this
year, the Council passed a vote for presentation to the city authorities remonstrating
BOSTON SOCIETY OF NATURAL HISTORY. 165
against licensing “ Jourdain’s Museum of Anatomy” so called, on the ground of its ten-
dency to offend decency and public morality, whilst subserving no good purpose.
It being understood that persons were in the habit of entering the building during
the evening hours for other purposes than that of working upon the collections, the Coun-
cil voted in March: That after the closing of the building, no person shall be allowed to pass
into it, except through the apartments of the Janitor.
Some alterations were proposed and adopted in the Constitution and By-laws at this
time, the most important of which was the addition to the latter of a section, providing
that whenever any existing or anticipated vacancy in the list of officers was to be filled by
election, anominating committee should be appointed by the Society at a stated meeting to
bring in at a subsequent meeting one or more nominations of persons to fill such vacancy.
And providing also that no person should be elected to any office until his nomination had
been under consideration by the Society at least two weeks.
In April of this year, Mr. 8. H. Scudder spoke of the great importance of a re-survey
of the State of Massachusetts, topographical, geological and biological. It was the first in
the Union to provide for a survey, but while almost all the principal States had now
finished or begun a second one, no steps had been taken by Massachusetts in this direc-
tion. The original survey was wonderfully well done, yet incomplete, and the advance of
scientific knowledge since rendered a re-survey very desirable. The American Academy of
Arts and Sciences had taken the matter into consideration and had appointed a committee
to memorialize the Legislature on the subject.
Prof. Niles, Mr. John Cummings and the President all addressed the meeting in favor of
the project, and finally it was voted on motion of Mr. Putnam: That the President ap-
point a committee including himself to petition the Legislature for a re-survey of the State.
Messrs. Niles, Cummings, Putnam, Jeffries, Hyatt, and Morse with the President, were
accordingly made this committee.
In the following May Mr. 8. H. Scudder reported that the subject of a re-survey of the
State had duly come before the Legislature and had been referred to the Committee on
Education with every prospect of a favorable report. He also referred to the question of
a public park now agitated, thinking that the idea of the establishment of a zodlogical
garden should be considered by the Society in connection with it.
The annual meeting was held on May 6th, Vice-President R. C. Greenleaf in the Chair.
The report of the Treasurer showed that the expenditures of the Society had exceeded
its receipts $1874.12. Among the former, however, was included the sum of $1754.22
paid for surance of property for five years. The alterations and improvements in the
building indispensable for the safety of the collections, and to bring them into proper rela-
tion to each other, had cost $3423.81.
The report of the Custodian, Mr. Hyatt, who had returned home and resumed the
duties of his office, after appropriately referring to the decease of Prof. Agassiz, gives a
summary of the work of the year, from which the following is presented.
Mr. Hyatt’s visit to Europe afforded an opportunity to fill out the Palaeontological col-
lection. A fair collection of species from Western Europe was needed in order that we
should be able to compare them in a general way with their synchronous representatives
in North America. To meet this want Mr. John Cummings generously furnished the
166 HISTORICAL SKETCH OF THE
necessary means for their purchase. By good fortune Mr. Hyatt was able to buy the very
valuable collection of Oberfinanzrath Eser of Stuttgart. This was very rich in the fossils
of the Tertiary, Secondary and Triassic periods, and also contained a fair representation of
the Carboniferous, and some of the Devonian and Silurian types. All these had been
selected with great care, and Herr Eser had expended the leisure hours of nearly forty
years in accumulating them.
Speaking of this collection, the Custodian remarked that the “ unique specimens which
it contains are both remarkable and numerous. Many of these were found during the
building of the extensive fortifications at Ulm, and were selections from all the fossils
obtained, which were sent by the chief architect to Herr Eser. The most valuable single
series consists of the two head pieces and detached bones of Belodon Campbelli, the only
remains of this remarkable animal ever found. There are specimens of tertiary plants,
which are of such delicacy that they are mounted like botanical specimens on paper.”
Besides the collection mentioned, Mr. Hyatt purchased also while abroad, through the
generosity of Mr. Cummings, several large specimens for the Palaeontological department
quite essential to it, among the species several Ichthyosauri and Teleosauri, and a magnifi-
cent plate of the expanded species of the Pentacrinus Briartius.
A splendid collection of Devonian fossils collected near Ithaca, New York, had also
been added to the Palaeontological series, partly by donations of Mr. John Cummings
and Mr. Thos. T. Bouvé, and partly by purchase.
The illness of Mr. Sprague had interrupted work in the Entomological department. It
was reported by Mr. Emerton, free from destructive insects. Dr. Carpenter had continued
work on the Mollusca. To the Comparative Anatomy department a prepared skeleton of
a horse mackerel had been added. Work on the Fishes had been begun by Mr. Putnam,
Chairman of the Ichthyological Committee.
The Ornithological collection had been frequently inspected through the year. It was
reported as free from insects. Considerable work had been done in the Botanical depart-
ment by Miss Carter, employed at the expense of Mr. John Cummings, to inspect and
arrange the duplicates.
During the year five Corresponding and thirty-one Resident Members had been elected.
There had been seventeen general meetings of the Society, eight of the section of Ento-
mology, and seven of the section of Microscopy.
The plan of notifying each member by postal card of the general meetings and of the
papers to be read at each, adopted in the autumn, had been attended with great success.
The numbers present since Oct. 15th, have averaged sixty-four, whereas the average num-
ber the previous year “was but twenty-five. The greatest number of persons present at
one meeting was one hundred and twenty-four, the largest Society meeting ever held in
this building.
Only one course of the Lowell Institute Lectures was given. This was by Dr. Thos.
Dwight, Jr., upon living animal tissues.
The disastrous effects of the great fire of November, 1872, had prevented the contin-
uance of the lectures to teachers, so generously provided for hitherto by Mr. John Cum-
mings.
BOSTON SOCIETY OF NATURAL HISTORY. 167
Of publications, four articles in the Memoirs had appeared, and four parts of the Pro-
ceedings. The library had received during the year three hundred and twenty-three vol-
umes, eight hundred and thirty-three parts of volumes, one hundred and twenty-four
pamphlets, and forty-nine maps and charts.
Respecting the alterations that had been going on, the Custodian remarked that a con-
siderable part of the year had been taken up in making them. There would undoubtedly
be experienced some difficulty in the arrangement of details in the separate collec-
tions but the natural sequence of forms, whether mineralogical, geological, or zoélog-
ical would be as fully and better illustrated than it ever has been in any printed work
embracing similar grounds, an achievement heretofore considered unattainable in Muse-
ums of the size of this. He deprecated having ascribed to himself the whole credit
of the extraordinary success thus far obtained, mentioning that the President had urged
the adoption of the plan of organization presented in the annual report of 1870-71, and
had ever since given it his energetic support.
At the election of officers for the year ensuing, Mr. Samuel H. Scudder was chosen
First Vice-President, and Mr. John Cummings Second Vice-President of the Society,
taking the positions hitherto held by Dr. Chas. T. Jackson, and Mr. Richard C. Greenleaf.
T. Sterry Hunt and L. $8. Burbank were chosen upon the Committee on Geology, from
which John Cummings resigned; R. H. Richards was chosen upon the Committee on Min-
erals, in place of Dr. Charles 'T. Jackson; John Cummings was chosen one of the Com-
mittee on Botany in place of William T. Brigham.
On motion of Dr. Kneeland the thanks of the Society were unanimously voted to the
retiring Vice-President, Mr. Greenleaf, for his valuable services. The following resolu-
tion presented by Mr. George Washington Warren was also unanimously passed :
“ Resolved, That this Society desires to place upon its records, its high appreciation of
the eminent services rendered by Dr. Chas. T. Jackson, one of its Vice-Presidents, and of
the high honor conferred upon the Society by his long association with it; and it would
respectfully tender to his afflicted family its sincere condolence for the malady which
has overtaken him, and has so abruptly terminated, for a season only, it is greatly to be
hoped, his scientific researches, which have been of inestimable value to the public.”
It was voted that a copy of the resolution be sent to the family of Dr. Jackson.
Six years have now passed since the above mentioned action was taken by the Society,
and as the hope expressed of the renewal of scientific work on the part of Dr. Jackson,
has not been and is not likely to be realized,’ there can be no more fitting occasion to
dwell upon his connection with, and his services to the Society. He was not, strictly speak-
ing, one of its original members, but he, soon after its foundation, was acting among them,
and in 1833 was elected to the office of Curator.
To no man was the Society more indebted for constant and active zeal in its welfare
than to Dr. Charles T. Jackson during the first forty years of its existence. Others sur-
passed him in laborious work on its collections when nearly all done upon them was by
voluntary effort; others in exerting greater influence in the community for its advantage ;
but none in a constant manifestation of interest in its proceedings as shown by so long
and uninterrupted a participation in them, and by the generous donation of a large por-
1 Dr. Jackson died, after a long illness, on the 29th of August, 1880.
168 HISTORICAL SKETCH OF THE
tion of his mmeral collection. No man among the members perhaps manifested more
genius for scientific work. Had the truly brilliant suggestions of his mind been always
followed up by prompt endeavor to obtain practical results, he would have been recog-
nized everywhere as a great discoverer and benefactor. This is not the place to discuss
questions relative to his instrumentality in the introduction of ether as an anzesthetic
agent. Suffice it here to express what is clearly true that the friends who knew him the
most intimately and who were his constant companions, ever felt that much more was due
to him than the world awarded. Whatever may be said, however, upon mooted points, all
who were members of the Society in his days of activity will agree that he served it well
and faithfully and that he richly earned its gratitude. Possessed of a good memory, and
having a great fund of information upon almost all subjects that came up for discussion
at the meetings, Dr. Jackson became much relied upon to take part when there was any
lack of speakers, and thus often largely contributed to the interest of proceedings that
might otherwise have been dull. Moreover, he frequently read papers of great value
which appeared in the publications of the Society.
In the Council meeting first held after the annual one of the Society, the usual commit-
tees for the year were formed, and a new arrangement was made with the Custodian, by
which it was understood that he should give all his time to the Society, excepting such as
was required by him for his regular lectures, and be held responsible for the building and
all the employees under his charge ; these to be considered his assistants and not those of
the other officers or of members of the Council. The Custodian or the Museum assistant
to be present during office hours. The Secretary to be present only when necessary,
and the second assistant to be a general assistant under his charge.
In furtherance of the plan still in progress to arrange the collections in consecutive
order, the Council voted, upon representation of Mr. Bouvé in behalf of the committee
on alterations, that it was necessary to fit up the gallery on the south side of the building
for the reception of Protozoans and Radiates.
Walker Prizes. The subject proposed for the Walker annual prize for 1874 was ‘* The
comparative structure of the limbs of birds and reptiles.” No essay of sufficient merit
for an award was presented.
In June of this year, the subject of a Zodlogical Garden came before the Society and
the Council. Ata meeting of the former, it was voted, upon motion of Mr. G. Washing-
ton Warren, that a committee be appomted by the Chair to urge, in the name of the
Society, before the Park Commissioners and the City Council, the importance of providing
for the establishment of a Zodlogical Garden and Aquarium in connection with one of the
proposed public parks, and that said committee have power to call a special meeting of
the Society whenever it may be thought expedient to consider such recommendation as
the committee may suggest in relation to the subject.
Whether this committee was appointed and if so what they did, is not reported in the
records. The matter is quoted as indicating the readiness of the Society to codperate
with the City government in any movement that may be made towards the establishment
of a Zodlogical Garden.
)
50.00
‘Smaller sums were contributed by Mrs. Elizabeth C. Agassiz, Mrs. Samuel Hooper, Miss
S. Minns, Miss E. Mason, Miss M. C. Jackson, Miss Stone, Miss Abby W. May, Mrs. James
Freeman Clarke, Miss Cora H. Clarke, Miss Lucretia Crocker, Mrs. Thomas Mack, Mrs. A.
S. Farwell and others.
“Many of these ladies were very active in securing the success of the course and the
Society thanks them and others ; especially Mrs. E. D. Cheney, Miss J. M. Arms, Miss C. J.
BOSTON SOCIETY OF NATURAL HISTORY. 205
Treland and Mrs. Samuel Wells for their personal efforts in behalf of the Teachers’ School
of Science.
“The teachers themselves, at our solicitation, joined in making up the fund. The contri-
butions from this source amounted to $789.
“ Notwithstanding this generous assistance, it would hardly have been possible to carry
on the several courses without the friendly aid and direct assistance in various ways of the
following institutions and persons.
“The Institute of Technology, which most generously gave us the use of Huntington
Hall, upon the payment of a merely nominal sum for cleaning and heating.
“The Museum of Comparative Zodlogy, under the direction of Mr. Alexander Agassiz,
which, through Count Pourtalés, Dr. Hermann Hagen, and Mr. E. C. Hamlin, at various
times assisted us by donations of specimens from the respective departments superintended
by these gentlemen.
“Mr. Henshaw, my right hand assistant in all the work of preparation and distribution,
whose untirmg energy contributed largely to secure the ‘success of every lesson; Miss
Hintz, of the Normal School. who drew with remarkable skill the diagrams used in the
Zoblogical course, and enabled the Custodian to illustrate fully all subjects; Mr. Van
Vleck for aid in the preparation of models; Mr. L. S. Burbank ; Miss Nunn, Professor of
Biology at Wellesley College; Mr. Robert McCarthy, of New York; Captain Horsfall, of
Steamer Canopus; Mr. Eugene G. Blackford, of New York; and the proprietors of the
Parker House and Young’s Hotel, for donations of specimens and assistance in various
ways.
“ Mr. E. G. Gardiner, Mr. E. A. W. Hammatt and Mr. G. H. Barton of the Institute of
Technology, have also kindly assisted at the lectures in various capacities. To many of my
own students, teachers and others I am also indebted for assistance.
“Since the lectures were begun in 1871, they have been continued without interruption,
except during the winter of 1872-73, under the patronage of Mr. John Cummings; and
previous to this winter about 75,000 specimens of minerals, plants, and animals had been
studied and distributed to teachers of the public schools. The applications for tickets rose
during those years from an average of 55 to 166.
“The number of recorded applications for the course now approaching completion is
616, or nearly four times as many as in previous years, and the number of specimens
which will have been distributed during this winter alone cannot fall short of 100,000.
“ After an introductory lecture in which the Superintendent of the Public Schools, the
President of the Society, and the Custodian delivered addresses appropriate to the occa-
sion, Professor Goodale completed a course of six lessons on Botany in which he instructed
the whole audience of five hundred with apparently as much readiness as if it had been
but fifty. Mr. Jackson Dawson, Mr. Watson and’ Mr. Greenleaf were of great assistance
to Professor Goodale in the procuring of the vast number of live plants and the great
amount of other material required for his lessons. Mr. Charles W. Spurr, 522 Harrison
Avenue, Boston, prepared, for the purpose of illustrating the subject of wood sections, 500
packages of excellent specimens of the following woods: tulip-tree or whitewood, rose-
wood, ash, oak, pine, mahogany, walnut, butternut, maple, cedar, birch, cherry, elm and
holly. Many of these were in duplicate, exhibiting both plain and figured texture. The
~
206 HISTORICAL SKETCH OF THE
specimens, more than ten thousand in all, were gratuitously presented to the class by Mr.
Spurr.
“The Custodian followed with twelve lessons on Zodlogy, which will be completed on
the 10th of this month, and Mr. Burbank is to continue with five on Mineralogy. The
average attendance on fair days, so far, has been about five hundred.
“The course was supplemented by the publication of a series of small pamphlets, under
the general title of Science Guides, which were intended to assist the teachers in the ap-
plication of the knowledge imparted by the lectures. These are described in the Report
of the Secretary.
“ Perhaps the most gratifying and encouraging facts are derived from an examination of
the statistics of the past seven years. Thus out of the 616 applicants of this winter,
there are 155 who had attended at least, one previous course,’ 119 who had attended two
or more previous courses, and 44 who had attended all of the courses. Some of these last,
I may add, are masters of public schools.”
The Secretary’s report was interesting, as he compared the condition and the work of
the departments under his charge during the ten years then closing. As in this volume it
will be better to present such comparisons at the close of another year, they are here
omitted.
Of members, twenty-four Associate, five Corporate, and fourteen Corresponding
had been elected. Of the meetings there had been sixteen of the general Society, seven
of the section of Botany, and eight of the section of Entomology. The average atten-
dance had been twenty-two at the general meetings, eight at the Botanical, and eleven at
the Entomological. The meetings of the last had been unusually interesting.
The history of the Botanical section begun, as stated by the Secretary, ‘ under hopeful
auspices three years ago, is far from satisfactory.” “With so much popular interest in
the study of Botany, the result was unexpected, and is to be regretted.”
The condition of the Library was stated to be good and its usefulness never to have
been so great—1169 books having been taken out by 123 persons.
The Society was indebted to the Museo Civico of Genoa for a valuable and complete
series of its publications; to Prof. Joachim Barrande of Prague, for a set of his extensive
works; and to Prof. J. O. Westwood of Oxford, for a number of his papers. The addi-
tions to the Library are as follows: volumes, 252; parts of volumes, 1005; pamphlets,
214; maps and charts, 221; total, 1692.
Of Publications, two numbers of the Memoirs, and three quarterly parts of the Pro-
ceedings had been issued.
A new volume of Occasional Papers, the third, had been put in press, and would soon
be printed. Besides these, a series of Guides for Science Teaching had been prepared for
use in the courses of lectures to the teachers, three of which had been published and
distributed, the cost being defrayed by sales. The three already issued were, About Peb-
bles, by Prof. Hyatt ; A few Common Plants, by Dr. Goodale ; and Commercial and other
Sponges, by Prof. Hyatt. These were to be followed by other numbers. The Secretary
stated the exchange list as numbering 352 Societies or Journals, of which 50 were United
States and Canadian.
1Tt must be remembered that the highest number of attendants at lessons reached in previous years was 166.
BOSTON SOCIETY OF NATURAL HISTORY. 207
The Treasurer’s account for the year showed that the income applicable for the general
purposes of the Society had not come up to the estimate made at its commencement, and
that the expenditures had been about three hundred dollars in excess of such income.
As, however, insurance on the property had been paid for five years in advance, the
spirit of the policy not to expend beyond the income had been adhered to. There had
been an excess of all receipts over expenditures of $855.90, all of which and probably
more it would be necessary to reserve for prize and other special expenses in accordance
with the conditions attached to the use of the Walker Fund.
At the election of officers but few changes were made, and these only in the Com-
mittees on the departments of the Museum. M. E. Wadsworth was chosen on the Min-
eral Committee instead of L. S. Burbank, Rev. G. Frederick Wright on the Geological
Committee instead of T. Sterry Hunt, W. F. Whitney, M. D., was added to the Com-
mittee on Comparative Anatomy, C. O. Whitman was chosen on the Committee of Mol-
lusks, in place of L. Lincoln Thaxter, and E. L. Mark in place of Dr. J. B.S. Jackson,
deceased.
At the meeting of the Council following the general annual meeting of the Society,
the trustees presented their estimate of the probable income of the Society, applicable for
general purposes for the ensuing year, as $8538.16. Asa portion of the income for
special uses, amounting to several hundred dollars, might be expended for general pur-
poses, they recommended that $8800 be appropriated for expenditure, not well perceiving
how less could be used without detriment to the interests of the Society.
Walker Prizes. 'The subject proposed for this year was “ The structure, history, and
development of some cryptogamous plant.” One essay was presented, but it was not
deemed worthy of a prize, and no award was therefore made.
In October the Woman’s Educational Association having requested the use of the lec-
ture room of the Society for botanical lectures on Mondays and Fridays, the Council
eranted the request upon the condition that the expense of heating the room, and of the
janitor’s services, should be paid by the Association. The Council appointed at this time
committees to act upon special matters as follows: On the grand Walker Prize, soon to
be awarded, Professor Wm. B. Rogers, Professor Goodale, and Colonel Theodore Lyman ;
on tablets to be placed in the entrance hall of the Museum, commemorative of its great
benefactors, Rey. Robert C. Waterston, Edward Burgess, and Alpheus Hyatt.
The Council also voted that the President appoint a committee to consider and report
upon a plan for the reception of the American Association for the Advancement of
Science, that body having decided to meet in Boston the coming summer.
In November, the Council granted to Mr. L. 8. Burbank permission to use the lecture
room of the Society for a course of geological lectures, he payimg only such expenses as
might be incurred for janitor’s services, etc.
In December, a vote was passed by the Council authorizing the Committee on Publi-
cation to attempt the publication of an illustrated quarto volume of the Memoirs as a
part of the Society's celebration of the semi-centennial anniversary of its foundation,
by soliciting subscriptions for such memoirs at ten dollars per copy. The committee was
also authorized to begin to prepare and arrange for the publication when five hundred
dollars were subscribed.
208 HISTORICAL SKETCH OF THE
In December, a petition to the Society having been presented for the formation of a
section of Microscopy, signed by Messrs. 8. P. Sharples, Samuel Wells, R. R. Andrews,
Edward Burgess, J. Frank Brown, David Hunt, Jr., Francis A. Osborn, R. C. Greenleaf,
A. Hyatt, G. F. Waters, and W. F. Whitney, the consent of the Corporate Members was
given at two meetings in accordance with the By-laws, and the section was thus formed.
1880. Walker Grand Honorary Prize. In January, the Committee on the award of
the Walker Grand Honorary prize, having unanimously recommended Dr. Joseph Leidy, of
Philadelphia, as eminently worthy to receive it, for his prolonged investigations and dis-
coveries in Zodlogy and Palaeontology, as presented in publications made by him, it was
voted by the Council that the grand prize be given to Dr. Leidy, and that in conse-
quence of the extraordinary merit of his work that the sum awarded be one thousand
dollars.
In January, also, the Custodian reported to the Council that the Committee of the
department of Comparative Anatomy objected to his proposed re-arrangement of the col-
lection of that department, and asked that the question at issue might be referred to the
next meeting for decision. Thus was brought before the Council the very important mat-
ter of determining whether the collection of Comparative Anatomy, like the other collec-
tions of the Society, should be arranged in subordination to the great plan proposed and
adopted at the commencement of the decade for the whole museum, or if the collection of
that department should remain an exception, not becoming a part of a series, the full
completion of which was essential to illustrate in the best manner the general laws of
science.
At the next meeting of the Council, which was held January 21, there was a very full
attendance, and a warm discussion took place upon the proposed action of the Custodian
in which Dr. Dwight, representing the Committee of the department of Comparative
Anatomy, — Professors Hyatt and Shaler, Colonel Lyman and Messrs. Allen and Bouvé
took part.
The great work that had been done by members of the committee upon the collection
in past years, demanded that all said by them against a change should be thoughtfully
and respectfully considered. There was therefore, no disposition to hasten a decision,
and accordingly a vote was passed referring the matter to a committee of three to be
appointed by the President. Colonel Theodore Lyman and Messrs. 8. H. Scudder and Sam-
uel Wells were named as this committee, and instructed to report at a meeting to be held
a week later. Upon the Council again coming together a report was presented by the
chairman of the committee favoring the proposed re-arrangement, whereupon Dr. Dwight
said he would not further oppose the execution of the plan of the Custodian, though he
personally believed the collections would be injured by the change.
The Council then passed a vote with but one dissentient voice, approving the proposed
action of the Custodian in carrying out the plan of 1870, with regard to the department
of Comparative Anatomy.
Thus was settled, not without much feeling, but amicably, a question, the decision of
which in favor of the proposed change, was regarded by the great majority as most
important for the welfare of the Society, whilst a number of members influential through
eminent service in its behalf, thought the proposed action uncalled for and detrimental.
a
BOSTON SOCIETY OF NATURAL HISTORY. 209
It may be conceded that much worthy of consideration was said in support of their views,
but it is believed that all students of nature will finally concur in the opinion that the
decision made was a wise one.
; Dr. Toomas Mayo Brewer.
At the general meeting of the Society on February the fourth, the President, Mr. T.
T. Bouvé said :
Since we last met, the Society has lost one of its oldest and most valued members, Dr.
Thomas M. Brewer.
It grieved me as an old personal friend to learn when in a distant state, that the disease,
by which as I knew before leaving home he was prostrated, had terminated fatally, and
that I should not again receive his pleasant greeting on earth, or even have the sad satis-
faction of being present at the funeral services following his departure. The long inter-
course between us had always been of the most agreeable character, and I feel that I have
reason to mourn that it has so unexpectedly and mournfully terminated. This is not the
place, however, for me to indulge in the expression of personal bereavement, but rather
to dwell on the great loss the Society and community have met in the death of our beloved
associate.
Dr. Brewer was born in Boston, Noy. 21st, 1814. He graduated at Harvard College in
1835, and in the Medical School in 1838. He labored in his profession for several years,
but his tastes and inclinations were stronger for other pursuits. He was fond of literary
labor, and, having strong political tendencies was early led to write for one of the lead-
ing Whig papers of the period, the Boston Atlas, and at length to become one of its edi-
tors, in which capacity he manifested marked ability both as a writer and close observer.
Subsequently he became interested in the firm of Swan and Tileston, a publishing house
which was afterwards changed to that of Brewer and Tijeston. He retired from business
in 1875 and then visited Europe, where he remained two years. He had become well
known by his ornithological labors and received consequently very gratifying attention
from many distinguished scientific men whilst abroad.
In the cause of popular education he was very zealous, manifesting at all times great
interest in the public schools of the city. He was long a member of the Boston School
Committee, and served in this capacity with great devotedness. His last election to this
office was in 1879, for the term of three years.
Dr. Brewer was elected a member of this Society October 7th, 1855, and soon became
well known by his valuable contributions, mostly upon his favorite subject of ornithology.
It is pleasant to recall the fact that his first communication to the Society was in defence
of Nuttall and Audubon, the distinguished naturalists, the latter his warm personal friend,
against some unjust attempts in a foreign magazine to detract from their well earned and
deserved reputation. Not long after he presented a highly interesting paper upon the
Birds of Massachusetts, in which he gave an account of over forty species not embraced
in the State report of Dr. Hitchcock upon the Geology and Natural History of the State.
From that early period, now nearly half a century since, he never ceased to manifest great
interest in the welfare of the Society, by frequent communications and in such other ways
as his health would admit.
210 HISTORICAL SKETCH OF THE
Apart from what he performed for the Society, he accomplished much for scientific
knowledge by contributions to several publications of great value, and by articles which
he furnished for some of the popular magazines.
As these remarks will be supplemented by particular mention of Dr. Brewer’s scientific
writings in a sketch furnished by his friend Mr. J. A. Allen, it will not be necessary for me
to make further reference to them, and I need only add that, had he lived free from the
business cares that until recently absorbed most of his time, much more might have been
looked for from him relative to the habits of birds, particularly of such as find a home
permanently or temporarily in New England.
We of the Society will greatly miss his efficient labors in striving to complete the collec-
tion in the department of New England Ornithology, for the development of which he
manifested much and increasing interest.
In the death of Dr. Brewer our Society has lost a most valuable member, and the
community, a good and wise citizen, one of whom it may be truly said: He was always
faithful to the duties of every position in which he was placed, and ever ready to work
where he recognized that his labors would promote the public welfare.
The following notice of Dr. Brewer’s scientific labors by Mr. J. A. Allen, was also con-
tributed.
The death of Dr. Brewer removes another of the older American ornithologists, of
whom there now remain two only whose period of scientific activity extends back to the
time of Audubon and Nuttall. Dr. Brewer’s first formal contribution to ornithology, enti-
tled “Some additions to the Catalogue of the Birds of. Massachusetts in Prof. Hitchcock’s
Report, etc.,” was published in 1837, in the first volume of the “ Journal” of this Society.
These additions numbered forty-five species and increased by one-fourth the list of birds
previously known as inhabitants of this State. Previously, however, he had furnished val-
uable notes and rare specimens of birds to Audubon, who in his great work on North
American birds, makes frequent mention of his indebtedness to “ his young friend, Mr. T.
M. Brewer of Boston.”
In 1840, he became more generally known as an ornithologist through his edition of
Wilson’s “ American Ornithology,” — the only American edition of Wilson’s work, except
Ord’s, published prior to 1871. The “ Brewer Edition,” from its comparatively small cost,
placed this delightful work within the reach of a wide circle of readers, to whom the more
expensive original and Ord editions were inaccessible. It was enriched by the addition to
the original text of the synonymy and critical commentary of Jardine’s edition, and by a
very useful and carefully digested synopsis of all the birds at that time known as North
American.
In 1857 was published the first part of his “ North American Odlogy,” which forms part
of volume IX of the “Smithsonian Contributions to Knowledge.” The full title of the
work — “ North American Odlogy; being an account of the geographical distribution of
the birds of North America during the breeding season, with figures and descriptions of
their eggs ”’ —indicates very fairly its scope and character, but in addition to the topics
thus indicated, the work gives a pretty full exposition of the breeding habits of the spe-
cies treated, so far as then known, and also full tables of synonymy. Owing to the great
BOSTON SOCIETY OF NATURAL HISTORY. Alla
cost of the illustrations, the work was not continued beyond the first part, which treats of
the Birds of Prey, the Swifts, Swallows, Goatsuckers and Kingfishers. This work, until
within the last year, was the only special treatise extant on the subject to which it relates,
and will ever hold the place of a standard work. It is, moreover, a work which brought
to its author great credit, and through which he became widely known as an ornithologist
of high standing.
In 1874 appeared “ A History of North American Birds,” under the joint authorship of
8. F. Baird, T. M. Brewer, and R. Ridgway, in three quarto volumes devoted to the “ Land
Birds.” To this work the whole of the biographical part, forming probably two-thirds of
the letterpress, was contributed by Dr. Brewer, and throughout evinces his thorough
familiarity with the literature of the subject, and shows the hand of the master in all that
relates to his special department of a work which marks an era in the history of North
American ornithology.
Dr. Brewer's minor papers appeared at intervals throughout the long period of forty
years, and embrace important contributions to our knowledge of American birds.
He has left the manuscript for the completion of his share of the great work on North
American birds already mentioned, the final revision of which he had just completed ; also
material for the contemplated continuation of his “ North American Odlogy.” His collec-
tion of eggs—the accumulation of a long series of years, —is doubtless one of the best
private collections extant. .
Dr. Brewer having been engaged during the larger part of his life in absorbing profes-
sional or commercial pursuits, his contributions to ornithology must have been largely the
work of such limited time as could be spared from his business engagements, and only
within the last few years was he able to devote himself wholly to his favorite studies. Al
though an authority of unsurpassed eminence in his special province, — that of North
American Odlogy, — his labors were mainly restricted to this field, taken, however in its
broader sense. Removed suddenly, apparently when there were years of activity and lei-
sure before him for scientific research, his loss is one not easily replaced, nor its impor-
_ tance readily appreciated except by those who knew him intimately and were familiar with
his conscientious manner of investigation, his warm sympathy, and the thorough loyalty of
his friendship.
At a meeting of the Council on the 17th of March, the President called the attention
of the members to the fact that the 28th of April would be the semi-centennial anniver-
sary of the formation of the Society, suggesting that a public celebration of the event
should take place.
After discussion it was unanimously voted, that the President should appoint a com-
mittee, including himself as chairman, to arrange for a proper celebration, with full pow-
ers to take such measures as they judged expedient. The committee as formed consisted
of the President, Mr. John Cummings, Mr. 8. H. Seudder, Mr. Charles W. Scudder, and
Mr. Edward Burgess. It will be remembered that the Council in December had passed
a vote in view of this year being the semi-centennial one of the foundation of the
Society, that there should be published an illustrated quarto volume of its memoirs as @
part of the Society’s celebration of the event, if subscriptions could be obtained for copies
212 HISTORICAL SKETCH OF THE
that would yield five hundred dollars. As more than the necessary number of names had
already been secured, preparation was made for the issue of sucha volume. Subsequently
the President was solicited to write for the same volume a sketch of the history of the
Society, from its foundation to the close of the fiftieth year of its existence. This, after
much hesitation, he consented to do, recognizing the importance of having such a sketch
prepared, whilst yet some of the founders of the Society were alive and able to give
information concerning their early brother members, and fearing that otherwise it would
be left undone.
The committee appointed to take measures for the celebration of the semi-centennial
anniversary were faithful to their trust, taking active measures to ensure success. It soon
became manifest that the occasion was to be one of great interest, all persons addressed
being found ready to codperate with the committee in carrying out their plans. Cheer-
fully His Excellency Governor Long, His Honor Mayor Prince, President Eliot of Harvard
University, Dr. Samuel Eliot, Superintendent of the Public Schools, Mr. Agassiz, Direc-
tor of the Museum of Comparative Zodlogy, and the Rey. Robert C. WW Mesa, responded
to calls upon them to take part in the proceedings. The committee’s labors were mul-
tifarious ; they had printed for use at the meeting and for digeibution’ an introduction to
the General Guide to the Museum then in preparation by Prof. Hyatt; they had moved the
elephant from his elevated position, and other large animals from their accustomed places,
and had erected across the north portion of the main hall a platform to accommodate the
speakers and distinguished visitors. This was carpeted and furnished with chairs, the rest
of the hall having settees over the floor.
At the general meeting of the Society, April 21st, the Nominating Committee having
reported a list of officers for election at the annual meeting, to take place on the 5th of
May, in which Mr. Bouvé’s name was mentioned for President, he addressed the meeting,
referring to his having consented four years previously, at the kind solicitation of mem-
bers, to withdraw his resignation then tendered, stating that there were several reasons
why he should decline re-election at the present time, and urging that the Society would
not ask him to reconsider his determination.
Mr. Scudder expressed the hope that the President’s withdrawal was not imperative,
and dwelt upon the work done under his administration, which had resulted in the final
crystallization of the policy of the Society.
Remarks were also made by Mr. Hyatt, Mr. Burgess and Mr. Nathan Appleton, ex-
pressive of regret at the contemplated action of the President. He, however, warmly
thanking the speakers for their kind expressions, reiterated his resolve to resign. It was
therefore voted to recommit the report to the nominating committee for reconsideration.
This being done they withdrew, and after consultation re-entered the meeting, and pre-
sented an amended report, nominating for President in the place of Mr. Bouvé, Samuel
H. Scudder. The report was then fuesisdl
At this meeting the models of the sun and the earth were presented to the Society he
the Boston Stientine Society. These consist of a gilt ball representing the sun, three
inches in diameter, and a white plate on which is a black spot three one-hundredths of
an inch in diameter, which symbolizes the earth. These were placed one on the centre of
each arch at the side of the stairs in the main hall of entrance to the Museum. They
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BOSTON SOCIETY OF NATURAL HISTORY. 913
represent approximately the proportionate size of the sun and the earth, and their dis-
tance from each other relative to size. The proportionate scale of the models and their
distance apart is about a foot to three millions of miles, or about one inch to two hundred
and fifty thousand miles.
A yote was passed, that the President appoint at leisure a committee of three to con-
sider the desirability of abolishing the Committees in the departments, and of devising a
different plan for organizing the Council, and to propose the necessary change in the Con-
stitution and By-Laws for this purpose. The President subsequently appointed as this
committee, 8S. H. Scudder, Dr. B. Joy Jeffries, and Edward Burgess.
Tur SEMI-CENTENNIAL CELEBRATION OF THE FOUNDATION OF THE SociETy; Aprit 28.
The anniversary day was pleasant and all things conspired to render the occasion inter-
esting and joyous. The spacious platform which had been erected across the north portion
of the main hall was occupied by the President, the speakers, the officers of the Society
and a large number of ladies and gentlemen.
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GEOLOGICAL MAP.
The village of Steinheim in the kingdom of Wurtemburg, stands at the height of about
1867 We. feet above the level of the seat It is not far from Heidenheim on the eastern
slope of the elevated plateau forming the Wurtemburger Alb. This village, from which
the formations described in the following pages acquire their name, and the village of
Sontheim, are situated in a valley which is circular in form, surrounding a central hill;
Steinheim lying just to the north of this elevation, and Sontheim a short distance to the
south. The valley externally, is surrounded by a circle of ridges more or less discon-
tinuous where they have been cut through by the drainage of the surrounding highlands.
The underlying formations of these ridges is the White or Upper Jura. Those of the
central hill, where the overlying Tertiary limestones and sands have been removed
by denudation, comprise representations of all the principal formations from the Lias to the
1 Equal to about 1822.5 English feet, or about 555.5 metres.
84 HYATT ON THE TERTIARY SPECIES
White Jura, 4 and B included. Prof. Quenstedt and Prof. Fraas have given minute
descriptions of the geology, and the map accompanying the official report of the latter to
the government of Wurtemburg, is here reproduced with certain essential changes in
order to illustrate this description. Though differing with regard to the structure of the
underlying portions of the central hill or Cloisterberg, these investigators and Prof. Sand-
berger agree in considering the valley to be due primarily to a synclinal depression of the
White or Upper Jura, which is the surface rock of the larger portion of the surrounding
and more elevated parts of the Alb.
According to this view then, we start in our history with a more or less closed kettle
shaped valley in which the Tertiary rocks, clays and sands, which form the subject of this
memoir, were deposited. These belong, according to all authorities, to the Miocene, and
according to Sandberger to the upper part of that formation.
Surrounding the entire edge or rim of the kettle is found a peculiar coarse breccia of the
older or Jurassic rocks, cemented together by freshwater limestone. My visits to these
rocks were directed wholly to the search for the beds described by Hilgendorf as contain-
ing Pl. aequiumbilicatus and its descendants, and therefore, the geological observations
made were merely incidental. I first endeavored to find these rocks as directed by
Hilgendorf on the west side of the basin, but did not succeed on account of the stormy
weather and my uncertainty as to their exact position. Subsequently, and also in the face
of a cold storm, I succeeded in finding two of the formations described by Fraas as occurr-
ing upon the Burgstall south of Sontheim, or “ Die Landzunge zwischen dem Stubenthal
und Steinkeimer Thal.’ Prof. Fraas writes of this locality very fully, and the cursory
observations made by me accord precisely with his descriptions. The Coarse Breccia lying
externally, or next to the Jurassic rocks, I did not visit, but found the Coarse Fresh-water
Limestone of Fraas in place. This rests immediately upon and passes into the coarser and
underlying Breccia, and contained only poorly preserved fossils, but by careful comparison
I have been able to ascertain that they unquestionably belong to the oxystomus series.
The natural sections which are abundant leave no room for doubt that the larger number
of the forms have a deeper upper umbilicus than is common even in PJ. i7"8, and
approximate more closely to the typical form of PJ. oxystomus. There are also several
moulds of Pl. srr. The umbilicus is large above and deep, as in that species, and the
upper ridge and sulcations plainly though slightly marked.
A fossil somewhat better preserved than others, showed in section a curious
intermingling of characteristics. The last part of the outer whorl had the angular aspect
of Pl. levis Klein as figured by Sandberger. The front part of the same whorl was of
somewhat blunter aspect, like PI. levis, as figured by Klein, the size being also about that
of the specimen figured by Klein. The upper umbilicus was much shallower than in PJ.
oxystomus, and the lower umbilicus wider. In fact it seemed to be a form combining
characteristics of PJ. levis, Pl. Steinheimensis, and Pl. oxystomus. This specimen leads
to the supposition that P/. Steinheimensis should be regarded as a variety of PJ. levis, a
view sustained by Hilgendorf’s observations, and by fifteen authentic specimens of P1.
levis received through the kindness of Prof. Sandberger. They were collected at Undorf,
near Regensburg, and contain several marked varieties.
OF PLANORBIS AT STEINHEIM. 35
Eight of the specimens have exactly the form and characteristics described and figured
by Sandberger. Pl. ,.j<7'1s 18 represented by one full-grown specimen, with rounder
whorls in the young, and only the outer whorl angulated. This leads into one full-grown
specimen exactly identical with Klein’s figure of PJ. levis, with whorls somewhat flatter
on the upper side, always rounded externally, and slightly stouter, so that the umbilicus is
deeper. This last is supplemented by one in which the whorls become still stouter, and the
umbilici on both sides perceptibly deeper, whichis absolutely identical with PJ. oxystomus
in the general aspect and characteristic outline of the whorl, but differs slightly in the
more open character of the lower umbilicus.
Two young specimens were until a late period of growth absolutely identical with Pl.
Steinhemensis, var. wequiumbilicatus, and one acquires an angular outer whorl when
not quite half grown. This one and the Pl. levis forms with angular outer whorls in the
adults cannot be distinguished from the typical specimens of Pl. “ji, part of parvus of
Hilgendorf, such as are figured on pl. 5, line k, fig. 1-4, and many others, which a
reéxamination of my Cloister Pit material has brought to light. The full-grown specimen
described as having only the outer whorl angular, is not distinguishable in any way from
the young shells described as transition forms between var. parvus and the Steinheimensis
forms of the pits. The specimens mentioned as identical with Klein’s figure and the one
described similar to oxystomus, can be in no way separated from Pl. oxystomus, especially
forms which can be readily picked out of any large number from formation m, of the
Cloister Pit. In fact, these specimens show conclusively that P/. Steinheimensis, Pl. oxys-
tomus, etc., are varieties of P/. levis, and explain the confusion of characteristics which must
necessarily result as long as this is not recognized. All the gaps were not filled in the
pits with intermediate forms, which would be so considered by an exacting judge opposed
to all theoretical views of the transmutations of specific forms. This failure is here accoun-
ted for, and the gaps closed up by the forms found in the rocks of the Lower Steinheim
Period, and the more ancient Tertiaries.
Other specimens, with rounded outer whorls, are not infrequent in the Coarse Limestone,
which the receipt of Prof. Sandberger’s specimens of PJ. levis have enabled me to identify
as precisely similar to the stouter forms of the Pl. 747s. No specimens were found
which could be said to have whorls identical in all respects with the angular whorls of Pl.
levis, figured by Sandberger. Gillia utriculosa was also found.
Fraas’ description states that the Coarse Limestone passes into regularly stratified fine
grained limestone, his “ Valvaten-Kalk,” which I have called Oxystomus Limestone, to
accord with the views taken here of the affinities of the fossils.
This contains according to Prof. Fraas’ account of this locality only the discoidal forms
found in the oldest layers of the Pits. ‘“ Die Valvaten gehéren der neideren, flachen Form
an, die in der Sandgrube von Steinheim im unteren, iiltesten Lager sich finden.”
The specimens of rock hammered out by me and apparently in place contained
specimens of PJ. levis, var. parvus Hilg., Pl. 778, and Pl. oxystomus with their young.
Pupa antiqua and Gillia utriculosa were also found, but were rare. Remains of fishes were
frequent as described by Prof. Fraas, but all fossils were less abundant than in the surface
limestones next to be described.
36 HYATT ON THE TERTIARY SPECIES
The “schmieriger Sand,” probably a deposit of clayey sand described as underlying the
Oxystomus Limestone, was not visible at any pot in my path in such a way that I could
determine its relations to the surrounding rocks. A large number of loose pieces of a thin
bedded limestone, slightly coarser in texture than the Oxystomus Limestone, were found
lying scattered on the soil of the lower part of the hill from the junction of the Sontheim
and Cloister ridge roads to the western end of the Burgstall. P/. supremus is very
abundant in these pieces, and one form also occurred, a variety with a slightly elevated
spire, which I have described as P/. oxystomus var. cochleata. This also occurs in formation
m of the Cloister Pit in great abundance. Though we find this to be a turretted form
with the whorls flattened on the upper side and so similar in the young to those of the
adult of Pl. °7ses, when seen from the same side, that no differences could be
detected, nevertheless the lower umbilicus was deep, the increase of the whorls in size by
growth exceedingly rapid, and the whole shell evidently similar to PJ. oxystomus, var.
cochleata. Closer investigation showed that this view could be sustained by an almost
uninterrupted series of intermediate forms, and by innumerable young shells, which
covered the surface of the slabs. PJ. levis Sand. also occurred, but this was rare and I
could not detect any specimens having forms intermediate between this and the former.
Gillia utriculosa, Gillia sp. unknown and Pupa antiqua were also found. The fossils
are not sufficiently peculiar to identify those fragments as belonging to any rock in place
and I only mention them here because they contain the rare form of cochleata.
The formation next described by Fraas as occurring on the road to Neuselhalderhof, I
did not visit, but the fossils are fully described by him, and differ from all hitherto men-
tioned. The rock itself he describes as succeeding the Coarse Breccia on the lower part
of the hill, but he does not attempt to synchronize it with the formations just described
on the Burgstall. The fossils consist of Pl. solidus Th., Pl. declivis Br., Pl. platys-
tomus Klein, Pl. exustus Desh., Pl. Hilgendorfi Fraas, Helix sylvestrina Ziet., Helix
gyrorbis K1., Lymneus socialis, Ancylus deperditus Desh., Neritina flwiatilis Linn. Of
all these it will be remarked that only Lymneus socialis and Helix sylvestrina are
found subsequently in the neighborhood of the Cloisterberg, either in the rocks or in the
Sand Pits, and that not a single one occurs in the formation on the Burgstall. To
determine precisely the relations of this formation with regard to those on the Burgstall,
would require a re-examination of the locality, but this is hardly necessary. Prof. Fraas
has described it as lying within the Coarse Breccia, and considers the fauna as related to
the older Tertiary Molasse of Teutschbuch. Hilgendorf describes the formation as a
“hard, thick, yellowish-gray limestone,’ and besides the fossils enumerated by Fraas, says
that it contains the Pl. aequiumbilicatus Hilgend. Steimberger refers this P/. aequium-
bilicatus to Pl. levis Klein, and says in his famous work so often quoted (page 579), that
this species occurs in the Planorbis shale (Schiefern), over the limestone containing Helix
sylvana, and mentions, as found with it, Lymneus dilatatus Noulet. Sandberger describes
the whole fauna of the Neuselhalderhofer or Sylvana Limestone as older than the Cloister-
berg deposits, and adds the following significant remarks :' “The enormous number of such
species as Carinifex multiformis, tenuis, oxystomus, Gillia utriculosa, Planorbis costatus,
1 Op. cit., p. 654.
OF PLANORBIS AT STEINHEIM. 37
Kraussii, and so on, which until now have been found in no other Tertiary formation,
astonishes one at first, and occasions one to overlook the manifold relations which exist
between the Steinheim fauna, that of the Upper Freshwater Molasse, and that of the
Sylvana Limestone, which (last) appears at Neuselhalder, under such circumstances that
it must at any rate be considered as the next oldest Tertiary formation of the neighbor-
hood.” ‘This opinion is supported by a long list of all the fossils found in this and other
localities, and other remarks which will be quoted more fully hereafter. Prof. Sandberger
is an acknowledged authority upon the Tertiary shells of continental Europe, and this
opinion, therefore, is of the greatest weight, especially when it is accompanied, as in the
present case, by a wealth of illustration, and a detailed text which most fully supports the
position.
Again the same authority does not describe the Neuselhalderhof rocks, under the
heading of Steinheim, but under that of the “Land und Siisswasser Conchylien des
Kalkes mit Helix sylvana, und der oberen Siisswasser Mollasse der Schweiz Schwabens
und Bayerns,’ and speaks of it as follows: “The Upper Miocene Limestone with Helix
sylvana again appears to the north-west of Ulm, first at Neuselhalderhof” (one hour
from Steinheim), and then describes its occurrence at a host of other places in various
parts of Germany, in scattered detached masses, the remnants of the former deposits of
an equally large number of fresh-water lakes of the Upper Miocene period.
Though none of these authors state distinetly the relationship of the Sylvana Limestone
at Neuselhalder to other rocks or by what it is immediately underlaid, they all agree that
it must be a remnant of a former period and it contains as stated by Hilgendorf the
elements from which the shell fauna of the Steinheim lake-basin were in all probability
directly derived. It is equally clear that it occupies according to Sandberger a position
underneath the Planorbis bed, a formation in which he found PJ. levis var. aequiumbili-
catus Hlg. on the Neuselhalderhof road.
These facts support the proposition advanced by Hilgendorf, that the ancestors of the
Planorbis forms of the Pits are found in the PI. levis, var. aequiwmbilicatus of the
Neuselhalder rocks. Though I cannot for reasons previously given trace all of the forms
to this variety, it is evident, that in the main proposition, the descent of the Pit
forms as a whole from the Neuselhalder and perhaps other Tertiary varieties of Pl.
levis, Dr. Hilgendorf is amply sustained.
More or less doubt must of course hang about conclusions based upon anything but a
series of close observations, and therefore I cannot at present do anything more than
suggest the probability that this First Period really represents two, one including the
Sylvana Limestone and the Coarse Breccia, and the other beginning with the Plan-
orbis rocks. I am also bound to state certain alternatives by no means improbable,
namely, that the remnants of an older fauna as shown in the Neuselhalderhof rocks may
have lived side by side with the new fauna for a considerable length of time, or on the
other hand, that the fauna of the Sylvana Limestone merely represents an unsuccessful
migration from a neighboring fauna, which gained only a temporary foothold in the lake.
Both of these alternatives appear to me to be unsatisfactory, but in such a locality nothing
but the keenest exploration can settle such a question, and that has not yet been given to
this point by any person, so far as I know.
38 HYATT ON THE TERTIARY SPECIES
To the east of the road to Heidenheim and on the low ridge crossed by the road, I took
a sample of rock which I considered at the time to be identical with that occurring in the
East Pit; the more massive character of the deposit struck me at the time, but being
influenced by the conclusions of former authors I did not pay much attention to the local-
ity. I supposed that it was nothing more than a fragment of the limestones from which I
had already collected in the East Pit, and took only one hand specimen, and that only as a
precautionary measure.’ This is to be regretted since its connection with the Sylvana
Limestone and the Cloisterberg rocks is very remarkable. The fossils show that the gradual
character of the transition from one fauna to the other cannot be safely denied. Pl.
discoideus is represented by a full array of varieties, but the flatter forms predominate
such as are figured on pl. 1, line e, fig. 10-12; like these also the young in the few
cases examined had the true discoidean character. The extreme varieties, the stout form
similar to fig. 19, line f, pl. 2, or the thin form shown in figs. 10, 11, line h, pl. 1, are rarer
than the normal forms, though the observer is very apt to think the latter very abundant
until a close examination is made. PJ. tenwis was sought for, but not found.
Two forms occurred which are probably the young of Pl. gieinirinensiss DUE It is not pos-
sible to determine whether they were these or the young of PJ. Steinheimensis. The
upper umbilicus was entirely wanting, and the whorls had the shape of P/. tenuis, but
without its angularity, or flatness on the lower side, or its narrow umbilicus.
Besides these there occurs a specimen of Hyalina subnitens Miill., and Vitrina Suevica
Sand. Though casts, these are well enough preserved to give positive grounds for
their generic identification. The second of these two species is described by Sandberger® as
occurring in the Sylvana Limestone, on the west side of the valley, and the first as in the
same formation at Méringen and Undorf. Both are very rare, and it is quite remarkable
that they should occur in a single hand specimen of this rock taken at random from the
first available point. Lymneus socialis of large size was very abundant.
The exposures of rock on the southern side of the Cloisterberg ridge are divisible into
two portions. The lower part occupies the lower border of the ridge extending in places
nearly to the top. Its structure, though finer than the Coarse Limestone on the Burgstall,
is very similar, and it was evidently deposited under similar conditions. Both are evi-
dently the product of speedy deposition in waters saturated with lime, as shown by their
coarse, irregular, granular structure, and numerous cavities which have led to the frequent
description of the latter as tufaceous.
I surveyed these rocks on every available occasion, and obtained many hand specimens
without, however, being able to determine with certainty either that they were connected
with the rocks to the eastward of the Heidenheim road, or what were their upper
boundaries. All varieties of PJ. discoideus are abundant, except those with very deep
sulcations on the lower or umbilical side; these are very rare, as are also the deep, thick-
whorled forms like those on pl. 2, line f, fig. 19. The prevalent variety is similar to
that described above, from the rocks in the valley to the east of the Heidenheim road.
They differ, however, in the young, which is more immature in aspect and precisely
resembles in a large number of forms the adult of Pi. tenuis. This is, therefore,
an intermediate variety and must be designated as PI. disooideus Specimens Ofid-l« stemesimenaty
1] have called this the Valley Rock, to distinguish it from 2 Op. cit., p. 602.
other formations.
OF PLANORBIS AT STEINHEIM. 39
such as are described farther on are extremely rare, but still do occur occasionally, though
they can only be determined when the young can be seen as in natural sections.
Pl. tenwis occurs quite frequently, and also a variety, which is slightly turretted. The
young are a little flattened, and have narrow umbilici on the lower side, so that they
can be at once distinguished. The upper side, and the form as a whole, resembles fig.
6, line ec, pl. 1, but the lower umbiicus is much narrower, and there are no marks
of sulcations. There is one specimen of the young of this species with no umbilical
depression in the upper side, a truly turretted variety, which resembles precisely the
figure of Pl. Lartetii Noul., as figured by Sandberger, on the upper side, but is more
rounded on the lower side.
Lymneus socialis, of large size, was very abundant in places, occupying the rock
to the exclusion of other forms. Guillia utriculosa Sand., was present in considerable
numbers, in the forms figured by Sandberger. Casts of the stems of Chara appear, but
are rare.
The rocks which I have called the Upper Tier, form the summit of the crest,
and like those of the Lower Tier are much denuded, the surface being worn out
into pillars of fantastic shapes, and rough looking knolls. The composition is similar
to that of the Lower Tier, but much harder and denser in places, though nowhere is
the porous characteristic, formerly described, entirely lost. The fossils are much less
numerous than in the Lower Tier with the exception of the Chara stems which are
very abundant in some places.
Pl. discoideus is very rare, but Pl. “ries is of more frequent occurrence. Pl. tenwis
is the most abundant fossil, but is almost wholly represented by the very flat form, which
is quite rare in the Lower Tier. The slightly turretted variety, which is quite common
in the Lower Tier, is found here also, but is much more infrequent. All the specimens
are very small or young, with the exception of PJ. tenuis.
Several young specimens were collected, which were identical with those previously
described in the Valley Rock as the young of Pl. gieifiensige These are here unquestion-
ably the young of forms which in the adult have the characteristics of Pl. tenuis. Never-
theless these young have rounded whorls and open umbilici on the lower side, until a much
later stage of growth than that at which the angular whorls, etc., are usually acquired in
Pi. tenwis. One full grown specimen was similar to Sandberger’s specimens of Pl. levis,
to my Pl. 4zer"*, and also similar to the specimens figured on pl. 1, line b, figs. 13-15.
Its evidence makes the relation of the most extreme forms of Steinheimensis and PI. levis
very clear. It has the peculiar flattened aspect on the upper side and shallow umbilicus of
many forms of Steinheimensis with the whorls on the outer and lower sides exactly like
those of Pl. °z0""". Besides these, several young specimens occurred, which were not
separable from the young of PJ. °"4¢""", and were undoubtedly identical with them.
Lymneus socialis of large size is present, but quite rare. In one hand specimen of a
peculiar gray limestone on the lower border of the Upper Tier on the west side of the
Cloisterberg, were found several specimens and fragments of Pupa antiqua, and a broken
cast of a specimen of Helix. A fragment of a tooth with thick dark-brown enamel, like
that of some small rodent, was also found.
40 HYATT ON THE TERTIARY SPECIES
No stratification was observed, and consequently it was not possible to determine
whether the rocks dipped towards the valley or not. These characteristics indicate
a continuous deposition, or rather precipitation of calcareous matter, since it is hardly
possible to conceive that any metamorphic changes could have taken place sufficiently
extensive to destroy the marks of stratification. It would seem a fact that these
rocks must have been deposited under circumstances very similar to those which occurred
when the brecciated limestones of the outer rim were formed.
This is evidently the view taken by Prof. Fraas, since he alludes to them in the following
words: ‘‘ Diesem Griesfels oder den Breccienkalk begegnen wir zum erstenmal bei Steinheim,
das von einem solchen Schuttgebriges regelmassig umlagert ist.’! And again, “ Sobald
man sich aber dem centralen Klosterberg, und den Dorf nihert, wiederholen sich gleich den
Breccien Erscheinungen aus dem Ries: regellose Massen alteren Juras, die in tertiiren
Sand und Kalk drin stecken.” ?
Sandberger * describes these rocks under the name of “ die klotzigen Kalke,” and says,
that though no stratification is found by which the superposition of the fossils can
be definitely determined, they contain the same association of fossils as in the strata of the
Pit, up to the introduction of “ Carinifex multiformis.”
The statements with regard to the geology, are entirely in accordance with my own
observations, except the portion of Prof. Fraas’ remarks which refer to the underlying
structures of the Jura. With regard to these, 1 am not capable of judging between his
and Quenstedt’s views, nor has the question an important bearmg upon the age
of the rocks under consideration. Whether the Cloister ridge is an irregular mass, as
stated by Fraas’ or an anticlinal ridge, as held by Quenstedt, it is, according to both
authorities, capped by the tertiary deposits here called the Cloister ridge rocks, and these
alone are concerned in the present discussion. When we attempt to compare the fauna of
the opposite sides of the valley, we are at once struck by the great differences between the
fauna of the Cloister ridge and Burgstall rocks. PU. levis ? Pl. ses, and Pl. oxystomus
in the rocks of the Burgstall present the characteristic association of forms found in
the fauna of the Cloister Pit, formation “m,” rather than what their geological position
would lead one to expect, though, as has been shown, these species are really the direct
descendants of PI. Jevis, and their occurrence here ought not to surprise any one. On the
other hand the rocks of the Upper Tier on the Cloister ridge, though they resemble
the Coarse Limestone closely in texture, and may be of the same age, have a very
different set of fossils. Pupa antiqua, Lymneus socialis, an unknown Helix, the tooth
of arodent; Pl. stein(tvsnsiss Pl. tenuis, Pl. “cides, and Pl. discoideus are all distinct
from those of the Coarse Limestone. PJ. °743°""* alone represents the species of this last
named formation.
The fossils of the Upper Tier are, as remarked by Prof. Sandberger, similar to those in
the lowest of the Pit deposits. In the next or Lower Tier this likeness to the fauna of the
Pits is increased, but the change consists more in the relative proportions of the species
than in the introduction of new forms. Lymmneus socialis, Gillia utriculosa, Pl. tenuis,
PI, wscoideus’ Pl. discoideus, are abundant, and Pl. gii(ft¥t.sig Very rare. The prevail-
ing form is, however, as in the Pit formations, P/. discoideus, except in places where
Lymneus socialis excludes all other forms.
1 Op. cit., p. 13. 2 Op. cit., p. 14. 3 Or. cit., p. 630.
OF PLANORBIS AT STEINHEIM. 41
If the rocks to the east of the Heidenheim road had contained any Planorbis, Lymneus
or Gillia it might have been said that the Cloister ridge and these rocks together, con-
tained a fauna precisely intermediate in character between the Burgstall and the lower
strata of the Pit Deposits. The presence of Hyalina subnitens and Vitrina suevica, how-
ever, both fossils of the Sylvana Limestone, may be perhaps explained in the same way as
oxystomus
wos in formation m of the Cloister Pit, namely by colonization
from some neighboring part of the lake where they had continued to exist. With these
the reappearance of P7.
exceptions, the fauna of these Heidenheim road rocks certainly presents a somewhat
remarkable character and contains an association of species which appear to follow on very
naturally after those of the Lower Tier, and fill the gap between these and those of the
lower strata of the Pit Deposits. This rock is very similar, as remarked by Quenstedt, to
the limestones of the Pit Period, and at first sight seems to be filled by the normal vari-
eties of P/. discoideus, to the exclusion of other forms, and has altogether a more recent
aspect than the rocks of the Cloister Ridge.
The forms, however, do not indicate a geological transition, because it is in the Lower
Tier that the predominance of discoideus occurs and not in the Upper. The Upper
Tier appears to lie upon that here called the Lower Tier, though with regard to this the
data are not such as would render this view unquestionable. The division between the two
Tiers is uncertam and not sharply marxod off by any line of stratification. It is
possible that, what now is the Lower Tier does not underlie the Upper Tier, but may have
once covered the summit of the hill and been superimposed upon the rocks now exposed
by denudation above. In this case the anomaly of the prevalence of “ discoiceus” in
the lower bed instead of the higher, would be done away with.
Whatever results may flow from future investigations upon the relations of the rocks
of the circular valley, it does not seem to me probable that the bearime of these facts
upon the origin of the fauna of the Pits can ever be materially altered. The rocks
contain a fauna, which is probably older than that of the Pits, and shows that the forms
which here and there appear suddenly at the lowest levels in the Pits had their origin in
a former period of which these rocks are the imperfect remnants. The richness and the
sudden development of the forms of the lowest stratum of the Pits at the two places
examined by me require an explanation, and that given by Hilgendorf does not seem
to me wholly satisfactory. Granting that the spots examined by me were nearer to the
shore line, and his farther out in deeper parts of the lake, and that he found only
Pl. Steinheimensis and Pl. parvus in the lowest stratum of the Pit deposits, the
fact remains that my explorations reached the bottom of the deposits in two places.
If the fauna I found was not contemporaneous with that which he found, the shores
must have been very steep, and have prevented the burying up of the shore-line faunas
until all the deeper parts of the lake were filled. This, however, is a difficult matter
to prove, in view of the fact that the strata have been more or less elevated since they
were deposited.
The Cloister Ridge has suffered greatly from denudation, and standing on the summit
alongside of one of the pillars or knolls, which still remain, the conclusion, that the
entire valley or basin must have been originally covered by rocks of a similar kind,
which have been, however, almost wholly removed, seems to be well supported.
4? HYATT ON THE TERTIARY SPECIES
Fraas and Quenstedt both attribute the formation of the circular valley and the
superficial aspect of the Cloister Ridge largely to denudation, and I think the inference
is very well founded that a considerable proportion of this must have taken place before
the formation of the lower strata of the Pits. These partially consist in the lower
part of the Little Pit of a peculiar coarse sand, containing fragments of rock,
both resembling in color and texture the Cloister Ridge rocks, though in the small number
of fragments examined no fossils were found. The dark, reddish-brown color of the sand
in the lower strata of the Pits predominates, whereas, in the upper parts above e and
f, this is not the case, and pure white shell sand is more abundant. Above these
again comes in some of the sections a sort of rubble, like that of the basal strata,
containing Lymnea again in abundance, whereas, in the intermediate deposits, it was
but sparsely represented. I was under the impression when at Stemheim, that the
Cloister Ridge rocks were considered older than the Pit Deposits, but nevertheless
spent a considerable portion of time in studying the relations of the two, and made
a series of observations, in order to find out their relations to each other, knowing
that but little attention had been paid to this part of the field.
Dr. Hilgendorf, in reply to my questions, wrote me on the 15th of November, 1877, that in
the Old Pit the massive Fresh-water Limestone of his Section 2? was surely a tufa similar
to the Cloister Ridge rocks. “ ‘Der massige Siisswasserkalkstein’ welcher die Grundlage
des Profils M 2 bildet (p. 481) ist sicher ein Tuff gewesen exhnlich den Felsen, die den
Klosterbere kronen.” He also states that he found in one of his excavations a block of
“'Tenuis Tufla,” resting upon the Jura, which was four and one-half metres thick, and adds
that.they (the Cloister Ridge rocks) agree with the older layers of the pits... The view that
the Cloister Ridge rocks and the lower Pit Deposits were formed at the same time is
rendered improbable by all the facts stated above; by the composition of the lower Pit
Deposits; by the difference in the structure of the rocks, which show that conditions
existed which made the lake at this period very different, a reservoir of lime-laden water
unfavorable, either from this or some accompanying cause, to the existence of such vast
numbers of shells as appeared in the purer waters of the Pit Period; by no signs of
transition between the two,and by the position and inclination of the strata of the Pits,
which dip away from the unstratified Cloister Ridge rocks, indicating a want of conform-
ability, which, however, could not be proved because no contacts were exposed.
The influences which effected the deposition of the Cloister Ridge rocks, were indepen-
dent of any periodical changes which could so materially alter the quantity of sediment held
in suspension by the water at any season of the year as to produce regular strata of slight
thickness. Whereas, within a few feet occur the Pit Deposits regularly stratified in such a
way that we can say with certainty that there were periods of quiet waters for the lime-
stones and clays, and periods alternating with these during which much coarse sediments
were transported and deposited in the form of sands and rubble, ete.
I am aware that the deposits of water impregnated by mineral springs, may take place
in very narrow and confined areas, but that such a thickness of rock exceeding that of the
Pit Deposits, would have been deposited on the Cloister Ridge in the immediate vicinity of
the Pit Deposits, in the middle of a lake, and yet been wanting in the larger number of
1 See p. 44 of this Memoir.
OF PLANORBIS AT STEINHEIM.
=
(Se)
the forms which are so abundant in the Cloister Pit, which is surrounded by them,
appears highly improbable.
In fact the enclosed pieces of rock, the general composition and incliation of the
strata, and the fossils of the lower Pit Deposits, all seem to indicate for them an origin
later in time, and a partial derivation of the material from the Cloister Ridge rocks.
The uppermost Pit Deposit found by me on the hill immediately above the Old Pit, and
containing Lymnea socialis and described as a rubble derived from the Cloister Ridge
rocks, also indicates a similar origin.
The structure of the Cloister Ridge rocks indicates a contemporaneous origin with the
lower rocks on the Burgstall, as noticed by Professor Fraas, but the fossils are not identical.
No exposure of any rock under the Lower Tier was seen, although diligently sought for,
and I was disappointed in this last hope of obtaiming positive proof of identity between
the rocks on the Burgstall and those on the Cloister Ridge. The impression made by the
fossils and the rock structure was such that under ordinary circumstances, and in a less
important locality, I should hardly, however, have hesitated to consider the Cloister
Ridge rocks as belonging to a somewhat later, if not contemporaneous part of the same
general deposit as those of the Burgstall.
The Pit Deposits do not extend far out into the valley, but are limited to remnants
clinging to the sides of the central hill. The underlying clay, the White Jura 3, has
been described as occurring wherever wells or cellars have been dug in the village, and
was found by Dr. Hilgendorf and the author in the Old Pit at the base of the deposits.
According to Dr. Hilgendorf, however, the White Jura forms the base of the Kast Pit,
and the Opalinus Clay, a much older formation of the Brown Jura, the base of the Cloister
Pit. This last fact shows how great the denudation must have been which took place
before the Pit Deposits began to be laid down on the south side of the hill.
It is very evident also from the singular want of exact agreement between the
layers of adjoining localities, as for example in Sections 7 and 8, representing two nearly
opposite sides of the New Pit, that the physical conditions varied considerably within
a few yards, and that while limestone or clay was accumulating in one spot, sand
was bemg laid down in another immediately adjoining, and the same for greater
distances, and in a larger sense. As, for instance, the sands and limestones of the Cloister
Pit are in direct contrast with the great prevalence of clay in the corresponding parts
of the New Pit and East Pit. There must have been, therefore, very considerable
variation in the state of the water in these different spots, though in such close proximity
to each other. Nevertheless, with all this local variation, there is a regularity in
any one section in the succession of limestones, clays, and sand, which strikes the
observer at first as absolutely uniform. Thus though no great amount of uniformity
exists such as would enable us to synchronize the strata with exactitude in different local-
ities on the same level, there is great uniformity in the alternation of limestone and _ shell
sand, or clay and shell sand, and this may be seen to be the governing fact in any one of
the sections. These minor local differences of structure can not be used to explain the
greater differences of the Cloister Ridge rocks, since in no case are the partings of lime-
stone formed “in situ” of a similar structure. They are everywhere a shell limestone of
greater or less fineness, but never vesicular, or similar to the limestones of Cloister Ridge
rocks except in the lowest parts of the Pit Deposits.
44 HYATT ON THE TERTIARY SPECIES
M. Ami Boué in an article entitled “ Les dépots Tertiaries et Basaltiques de la parti du
Wurtemburg et de la Baviere,” ' describes these Cloister Ridge rocks as a calcareous tufa
deposited upon the strata of sands and clays. This hypothesis is, however, inadmissable,
since no observer has seen any of the Pit deposits between the underlying Jura rocks and
the Brecciated or Cloister ridge Limestones in any locality. The Cloister Ridge rocks are
described as resting directly upon the Jura in all cases. and so also is the Breccia of Fraas,
and they are both laid down in the official map of which a modified copy heads this chapter,
in accordance with these views. The existence of the Lower Steinheim Period though
advanced here in distinct terms for the first time, is really to be inferred from the writings
of Quenstedt, Fraas, Hilgendorf and Sandberger. Every one of these authors allude
either directly or indirectly in such terms to the Neuselhalderhof rocks containing a dis-
tinct and older fauna than that of the Upper Steinheim (or Pit) Period.
The Geological Map of Steinheim, page 335, shows the central hill with Steinheim to the
north and Sontheim to the south. The Neuselhalder rocks are situated to the westward and
are marked like the Breccia of Frass, as are also the Cloister Ridge rocks forming a half
circle on top of the central hill, and also the rocks of the Burgstall, southeasterly from
Sontheim. This was done to place clearly in view the association of rocks supposed to
form together the strata of the Lower Stemheim Period.
Til. Review oF GEOLOGICAL SECTIONS.
Hilgendorf gives five diflerent and detailed sections in the Old Pit, which do not agree
very closely, nor im view of the great disparity of even adjomimg parts of the
same pit, depart much from the sections here given. His remarks about the New
Pit, however, show that here there was a very marked difference. He describes this
as very deficient in limestone, whereas, a glance at my Sections 7 and 8 will show
that the opposite condition occurs at the present time. This agrees also with the
fact that for a long time previous to my visit this had been the pit preferred for the
excavation of sand, and had been very much enlarged. The two following sections
are quoted from the two, which were continued down to the base of the deposits,
by Dr. Hilgendorf.
Dr. HirGenporr’s First SECTION. Dr. HILGENDORE’s SECOND SECTION (LOWER PART).
Limestone; formerly the floor of the pit. (Clay.
Clayey sand. Shell-sand.
2.4. Clay with three strips of shell-bearing sand. Clay.
Shell-sand with Pl. m. sulcatus. Limestone.
3 < Clay. 44 Clay.
Shell-sand with Pl. m. sulcatus. Shell-sand.
Gh ‘ Clay.
if cols Shell-sand.
, | Shell-sand. Sian Sed
$+ Clay Clayey-sand.
eens { Shell-sand.
| Clayey-sand with Pl. m. tenuis and sulcatus, Clayey-sand.
underneath clay with a thin layer of Pl. m. 3 ) Shell-sand.
22 Tenuis and below with large angular pieces of ( Clay.
Jura-limestone. ;
2 Clayey-sand with two shell layers.
1 Massive Fresh-water limestone.
1 Ann. des Sci. Nat. 1824. Vol. 2sc, p. 5—12.
OF PLANORBIS AT STEINHEIM. 45
It will be observed, however, that, in the two holes sunk in the Old Pit, under my
directions, the pieces of Jura limestone began to be thrown up as soon as the pick entered
the dark clay layer. Dr. Hilgendorf, in none of his sections, found the dark clay layer,
which forms the base of these two sections. Nevertheless, No. 2, in his First Section,
consisted above of clay layers containing PI. tenuis, and below the large angular
fragments of Jura limestone, which show that he had here reached the bottom of
the deposits. It seems as if no other inference was possible, since everywhere this
indicates the same fact, and is accepted as the limit.
I cannot synchronize his sections and any of mine with success, as in fact might
be anticipated from the great variation which occurs often within a few feet between
the details of the stratification. :
His second section, given on p. 480-81, is the most complete of all, since here he
obtamed his Pl. m. Steinheimensis. With relation to this there are some statements
which have confused me in searching for the exact situation of this form. All of his sec-
tions described are in the Old Pit, and only a general description is given of one in the
New Pit, and of the “ dritte Grube ” which is the Cloister Pit — the East Pit he does not
mention. In the New Pit he distinctly states that he did not reach the Steinheimensis
layer ; and in the Cloister Pit he saw the Sfeinheimensis zone, but not “in situ,” (“ nicht
in situ gesehen.” )
This narrows the places in which this zone was first observed to one section, his
second section.
On p. 492 in his account of Pl. m. Steinhermensis, and its genetic series, he writes as
follows: “‘ Die Zone (1), deren Schilderung den Anfang machen miisste, ist mir leider nur
mangelhaft bekannt, da sie bei meinem letzten Besuch der Gegend unzuginglich war.
Sie enthilt die echten Steinheimensis ; doch zeigen schon hier einzelne Exemplare eine
Andeutung von tenwis — Kennzeichen ; am Ende der letzte Windung tritt oben eine
undeutliche Furche auf, und die Abplattung der Umginge ist auf der Oberseite oft schon
recht merklich. Doch kem einziges Exemplar wiirde mit einem fenwis verwechselt wer-
den kiénnen. Dagegen kommt in der niichsten Zone, (der wntersten, zu der ich in der
alten Grube gelangte), ein tenwis-artiges Aiissere den meisten Exemplaren zu, nur die
scharfe Kante auf der Unterseite ist bet kemem Exemplare ausgebildet, so dass ein
eigentlicher fenwis (unter etwa 1000 Exemplaren) noch nicht zu finden ist. Diese
erscheint erst in der niichsten Schicht in der Begleitung von echten, meist involuteren
Steinheimensis ; beide Zonen zusammen geben eine Reihe von Exemplaren die von der
schénsten Rundung emes Steinheimensis zu der breiten scharf kanntigen Form des
tenuis jede Abstufung zeigen, Doch scheint in den fenwis Zonen schon eine kleine
Liicke zu sein, so dass aus ihr allen eine Reihe nicht mehr gut herstellbar ist. Man kann
die 3 Schichten als Stetnheimensis-zone, Uébergangszone des Steinheimensis zu tenuis,
and fenwis-zone bezeichnen.”'
In this description he declares the second zone to be the lowest which he reached
in the Old Pit, although the first zone is put down in his second section. This
discrepancy however, disappears, when taken in conjunction with the fact that he
deseribes zones 1 and 2 in the section, as two layers of shells contaimed in one
1 The italics are all my own, except, of course, the names of the species.
46 HYATT ON THE TERTIARY SPECIES
layer of clayey sand. The lowest of these consisted of true Steinheimensis shells,
and the upper of ‘emesis shells. In this statement, then, we see that Dr. Hilgendorf
did not find two distinet deposits, but one deposit with two distinct layers of shell.
Unfortunately, the conditions of the problem demand that there should be a wider
separation than this, or else there comes m the doubt that m this case, at any rate,
there may have been the overlapping of local and contemporaneous colonies, so common
in these deposits. This same section also assures me that in my sections in the Old Pit,
the bottom of the deposits at that place was reached. I carefully kept separate ' until
after I had drawn and studied them, the samples of fossils gathered from pockets
in the Jura clay itself, and these contaied specimens of the Pl. multiformis, which
were not only important in respect to being found in this position, but still more
so from the fact that they were transported shells. This was the conclusion arrived
at by comparing them with other specimens. They were encrusted with brown
limestone, and otherwise roughened like rolled shells. They imply that PJ. mu/tiformis
existed before this lowest layer was deposited, and that the few specimens found were
transported from some other locality where living specimens existed, and had been
in the water long enough after the death of the mollusks to acquire their rolled
aspect, and encrusted outer surface.
I farther assured myself from the owner of the pit before digging the hole, that
the floor of the pit had not been disturbed since Dr. Hilgendorf’s visit, and dug
near the spot pointed out to meas the one where he had sunk a pit. This, however,
proved to be a mistake, since the limestone was unbroken, and Dr. Hilgendorf
claims that the section No. 6, of my digging, was nearer the hill, and not so deep as
those explored by him, except his No. 4, and that I struck the Jura clay at a much
less depth, so that in place of Nos. 1-2, I found only his bed 5, equivalent to his disco-
ideus zone.
He states that the fish remains occurred in his zones 6 and 7, while they occurred
much lower in my sections —namely in bed c. His zones 6 and 7, however, are the
equivalents of &. 7. in my sections, and the whole thickness of my sections were between
40 and 55 feet in the Old and New Pits. This is a very significant fact, since he states
that the total thickness of all the strata were 45 Wurtemburg feet— about 42 Eng-
lish feet. “Die gesammte Miichtigkeit der beobachteten Schichten wiirde sich auf etwa
45 Fuss belaufen, wenn dieselben der niimlichen Stelle siimmtlich in giinstiger weise ent-
wickelt wiiren.”
The number of zones which could be distinguished petrologically was, as stated by him,
about 40 in all; but this I could not use for comparison, the number of layers differing so
greatly, that no reliable comparison could be made. The total thickness, also, must have
been considerably lessened in the Old Pit at the time of Dr. Hilgendorf’s visits, since he
did not find the oxystomus and supremus zones here, but in the Cloister Pit, whereas,
these were well shown in the New Pit immediately adjoining the Old Pit, at the time of
my explorations.
1 Tt is of course understood in all these cases, that no exposed surface, or without digging under the limestone
pains were spared to make every sample perfectly reliable, layers, ete. No one but a tyro would think of neglecting
and that in no case was a hole sunk except through — such precautions.
unbroken limestone, nor was anything gathered from an
OF PLANORBIS AT STEINHEIM. 47
I am, of course, bound to believe Dr. Hilgendorf’s explicit statement that he was
obliged in order to reach the Jura, to dig much deeper than I did, and there are certain
facts in my own sections which confirm this. He dug to the Jura in his Sections 1 and 2,
before the Pits were opened so far into the side of the hill, and was therefore farther out
in the valley, and this corellates with the facts in my Sections 5 and 4, as compared with
6. In 6 the lowest formation a is really equivalent to a, 5 in No. 5, which was only a
short distance to the northward, and is replaced by a layer of limestone in No. 4, which
was a considerable distance to the north and east. This is shown by the position of the
limestone immediately between the clays above, and the coarse layer below, in No. 4.
Thus all the layers found below a, 3 in No. 5, and the limestone just above a, 3 in
No. 4, are absent in No. 6. The first of these is the coarse layer a, 2, in Section
5, and a, 3,in Section 4. The great increase in the thickness of this, is carried out in
the Little Pit in the other beds also, so that it can safely be inferred that the beds crow
deeper outwards in this direction, as well as probably to the westward where Dr. Hilgen-
dorf dug. Thus a, 1, in Section 5, is shell sand and clay, becoming two layers and _pos-
sibly more of clay, with at least three thick limestone partings in No. 4.
The conditions governing the deposition of the layers between these three places,
therefore, must have been very different, though gomg forward at the same time, and at
a short distance from each other, and two of them, 5, 6, in nearly the same depth of water.
This conclusion is sustained also by the aspect of the layers containing fish remains, which
occur in b, c, d, according to the observations made upon the adjacent Sections 3, 4, 5,
and 6. The pit formations, in fact, show everywhere the exceeding variability of the con-
ditions under which deposits took place in adjacent spots, for they cannot be dignified by
the name of localities.
The fossils found in @ of Section 6, comprised nearly the whole range of forms,
and indicated also by the worn character of some of the trochiformis shells that they had
colonized this locality from some other part of the lake. Those found in the lower part
of a in contact with the Jura contained eight specimens of Pl. trochiformis, all in one
spot together, with intermediate varieties “his, while at another place in the hole, only
three feet distant, none were found of this species. No divisions were seen in this stra-
tum, but the specimens were fewer in the upper part than in the lower. Fish remains
occurred in a soft calcareous parting immediately between this and formation b.
This last fact is important, since if confirms the opinion that in all probability @ in
Section 6 is equivalent to a, 3, in Section 5.
Do the fossils differ in Section 5? The list given shows that in formation a, 3, only the
following are found, Pl. Steinheimensis, tenuis, discoideus. If | had gone no farther, the
absence of PI. trochiformis, and the intermediate forms Pl. “7el/*rm's mioeht have been
considered very significant in favor of Dr. Hilgendort’s view.
But the next lower formation a, 2, Section 5, at a lower level, contained the same gen-
eral association of forms with the addition of Pl. discoideus, and “chrm’s” The lowest
formation a, 1, contained even a more complete association of forms, and was not separable
from @ in Section 6, with which the specimens were finally mingled on plate 1 in
order to complete the illustration of this stratum, which in both cases rested on Jura
clay. But there was a much greater abundance of PJ. sulcatus, and the Pl. trochiformis
was exceedingly rare, only one specimen being found, and that a rolled shell.
48 HYATT ON THE TERTIARY SPECIES
If we assume in accordance with the contained fossils, that these layers belong to the
Trochiformis zone, the difficulties become greater mstead of less, as we shall see
farther on.
Dr. Hilgendorf in his communication “ Neue Forschung in Steinheim,” Zeitseh. d.
Deutsch. geol. Gesellsch., 1877, p. 450, writes that he tried to find during his
reéxamination of all these localities, single specimens of the higher varieties in the lower
strata, but without success, and also that no less than five other competent observers
failed in the same quest. This is very strong evidence, especially when taken in
connection with the fact, that Dr. Hilgendorf, with a zeal which must make every
one desire to agree with him, sunk no less than ten holes to the Jura, and took
photographs and sections, gomg over all his observations again and again six times,
with great care. Altogether the amount of time, trouble, and study he has expended
is very remarkable, and worthy of the highest success, which I most heartily wish for
hin.
But although my observations cannot compare with his in these respects, there
are certain facts which even the great mass of evidence he is able to bring to bear
upon this subject, do not seem to make clear.
My two sections 5 and 6 reached the bottom of the deposits at the places where they
were made. Whatever formations they represent, whether deposited in deep or shallow
water, rest upon the original bottom of the lake. The trochiformis fossils are not only
the remains of fresh, but also of rolled shells. These were found at a greater depth
in Section 5 than in Section 6. Therefore, if bed @ in Section 6 was the equivalent of Dr.
Hilgendort’s Discoideus or Sulcatus bed, or even if a, 1 in Section 5, was so high, how was
it, that on three occasions, and two different places, | found Pl. trochiformis there.
Dr. Hilgendorf’s Trochiformis bed unquestionably lies immediately underneath m,
the Oxystomus bed, in all my sections, and, if a@ in my section is part of the
Trochiformis zone, then the Trochiformis bed would extend from m, to the Jura,
a greater thickness, and a larger number of beds than could be meluded in that
formation, and yet preserve the sequence of the forms as described by him, since under
this again must come five out of the ten zones described by hin.
His recent researches may possibly remove these doubts by showing how this can be
accounted for, but there still remain other facts.
Unquestionable Pl. oxystomus occurred in the New Pit, much lower than m, the
first true Oxystomus zone of the Old Pit and of the Cloister Pit, namely in h, Section
8, together with P. crescens,' which also ought not to have occurred until the Oxystomus
zone was reached. Pl. oxystomus also occurred in Section 6, in bed 7 again in company
with PZ. erescens.
Another point in this connection is the occurrence in a, 3, of Section 4, in a formation
lower than a Section 6, and equivalent to a 2 in Section 5, of a specimen of P/. (iians.
This is such an intermediate form as is figured on pl. 4, fig. 2, which does not occur
until e is reached in the Old Pit, pl. 2, lme e. This specimen was found when hunting
This species also occurred in f, before P/. oxystomus.
OF PLANORBIS AT STEINHEIM. 49
very carefully, by digging into the sides of the Pit, for the few specimens of PI. tenuis
which accompanied it.
But what is more important, and to me most mexplicable in this matter, is that
I failed to distinguish throughout any beds which could be considered as corresponding to
those described by Dr. Hilgendorf as sulcatus, “Qiiis’, discoideus, “iris, trochiformis
and oxystomus.
There were here and there beds, such as a 3, Section 4, which held only Pl. tenuis,
but this had also @nudatus, q 2, Sect. 5, could have been "gchiformis’ but here was also
trochiformis ; and a 3, Sect. 5, could also have, but for this, been considered a true
Discoideus bed.
Pl. minutus came in formation d, Old Pit — but how account for the earlier appearance
of Pl. cums in a 3, Sect. 4, so much earlier, before the fish layers, and in what would
otherwise have been a perfect P/. tenwis bed. In the New Pit the same difficulty occurs
with P/. oxystomus and crescens which, as described above, put in an appearance too
early, and spoiled the definition of the PJ. trochiformis formations.
So also, in the East Pit, formation d, e, otherwise a perfect Pl. discoideus formation,
with PI. triquetrus, and Pl. costatus and minutus as described by Dr. Hilgendorf, con-
tained one or two broken specimens of Pl. oxystomus. Not much in themselves, but
very significant when taken in connection with other facts, and also when it is considered,
that to obtain these, I sifted considerable material taken from this very thick formation.
In this Pit, however, I could easily trace the kind of evidence brought forward by
Dr. Hilgendorf, and from d, e to the true Trochiformis bed h, which would give a very
perfect series from Pl. discoideus or sulcatus to Pl. trochiformis.
I can think of no way to account for these discrepancies, except the different results
of different methods of research. My collections are much smaller, and my observations
more limited than those of Dr. Hilgendorf, and therefore it may seem to some readers
that it is presumptuous on my part to oppose his results, but from another point of view
this only makes it more difficult to account for the exceptions which were found.
I feel myself, that the conclusions with regard to the Cloister Ridge rocks need more
positive evidence than I have been able to bring forward, but the facts with regard to the
occurrence of fossils in the Pit Deposits, are not in any case theoretical. The identifica-
tions are made after comparison with a set of types sent me by Dr. Hilgendorf, and after
prolonged and repeated observations, and the discrepancies occur in species of marked
characteristics, and easily identified. The method of research excludes error in any other
respect as much as is possible in such investigations.
The theory also, which I have advanced, that the Cloister Ridge rocks really contained
a more ancient fauna than the Pit Deposits, is substantiated by the geological facts,
the fauna contained in them, the “ tenwis Tufa,’ found lying on the Jura Clay, by Dr.
Hilgendorf, and described by him in a letter to me, the structure of the lower beds of the
Pit Deposits, and so on.
Again, the situation of the Cloister Pit, where Dr. Hilgendorf found a full series of beds
near the highest elevation of the ridge, and which must be at least a hundred feet
1The sides of the Pit above in which the Pl. denudatus this shell differs in color from them, and agrees with the
also occurs in formation e were removed wel] back, and bleached, dead white Pl. tenuis found with it.
50 HYATT ON THE TERTIARY SPECIES
higher than the Old Pit, seems to show that the relative depth to which one may dig
in reaching the Jura does not count for much. The elevations which have taken
place, and which of course primarily affected the Jura clay also, make it impossible
to say that the strata represented in a hole, six feet deep in one spot, may not
be of equal age with strata resting on the Jura, ina hole fifteen or twenty feet deep.
The foldings of the formations and the broken aspect of the limestone layers above,
show that restricted local and vertical movements in the formations have taken place,
and that a general movement of the Cloister Ridge upwards has also taken place.
This last would account for the greater thickness of the formations as a whole as we go
outwards from the ridge, but not for the greater thickness of the same beds. If this is
a fact, such formations as a1, 2, Sect. 5, are older than a 1, Sect. 6; and al, Sect. 4,
older than a 1, Sect. 5.
The great uncertainty in this problem is the variability of adjacent beds, as in m—p, of
the two sections in the New Pit, or d, e, f, of the two sections in the East Pit.
Of course, if the fossils followed each other in regularly arrangeable series, as
described by Dr. Hilgendorf, in a number of places, and throughout the entire series
of formations from the Jura clay to m inclusive, in every pit and excavation, there
could be no doubt, but, if they fail in a single section, it is fatal, provided the number
of exceptions found are sufficient to eliminate errors of observation due to the accidental
intermixture of higher occurring species in lower formations; and this appears to me to
be the real state of the case.
The following section of ‘Sandberger’s is given in detail, because it was taken in
the East Pit, which is likely to vary exceedingly with farther exploration, and also
presents more difficulties than the others.
SANDBERGER’s SECTION. | EqurvALentTs. SeEcTION 2,|| SANDBERGER’S SECTION. | EQUIVALENTS. SECTION 2,
RAST err East Prr.
No. Metres. No. Formations.|| No. Metres. No. Formations.
1 Shell-sand ? d 21 Limestone 0.03 20 Limestone
2 Bk 1.10 2 Shell-sand 22 Shell-sand 0.12 21 Shell-sand
3 Limestone 0.01 3 Limestone — 23 Limestone 0.05 | 22 Clay
4 Shell-sand 0.20 4 Shell-sand 24 Shell-sand 0.28 23 Shell-sand
5 Limestone 0.01 5 Limestone e 25 Limestone 0.02 | 24 Clay i
6 Shell-sand 0.22 6 Shell-sand 26 Shell-sand 0.09 25 Shell-sand
7 Limestone 0.02 7 Limestone 27 Limestone 0.06 26 Limestone |
8 Shell-sand 0.30 8 Shell-sand 7} 28 Shell-sand 0.14 27 Shell-sand
9 Limestone 0.01 9 Limestone 29 Limestone 0.04 | 28 Limestone JJ
10 Shell-sand 0.08 10 Clay 30 Shell-sand 0.12 7
11 Limestone 00.2 11 Limestone rf 31 Go 0.03 29 Shell-sand i kl
12 Shell-sand 0.30 12 Shell-sand 32 Gr 0.62
13 Clayey-sand 0.16 13 Clay | 33 Limestone 0.05 30 Limestone :
14 Limestone 0.58 14 Limestone J 34 Shell-sand 0.97 31 Shell-sand xl
15 Shell-sand 0.45 15 Pocket shell-sand } 35 Limestone 0.16 32 Limestone m
16 Clayey-sand 0.15 Clay surround’g Ist 36 Shell-sand 0.85 | 33 Clay
17 Limestone 0.62 16 Pocket of shell- | “fl 37 Limestone 0.09 | 34 Limestone
sand and also oc- { ® 88 Shell-sand 1.30 35 Shell-sand n-o
cupying centre. | 39 Limestone 0.25 | 36 Limestone
18 Shell-sand 0.50 17. Pocket shell-sand J 40 Shell-sand 0.25 37 Clay-sand
19 Limestone 0.04 | 18 Clay h 41 Limestone 5 Qh al]-
20 Shell-sand 0.50 | 19 Shell-sand j 42 SHelceand he ee aS
My own Section 3, was not taken directly up the face of the cliff, but in two
connected parts of the cliff, and Section 2, from a hole in the centre of the pit.
1 The correspondence here is much confused on account of the distribution of the shell-sand in pockets in the midst of the clay.
pn Ee eee
Annivers Memoirs, Bost.Soc Nat Hist.
Cloister Pit.
RAMA)
WOU
Explanation of Signs.
ZAABARAA
AL a
LSI OOS
Surtiice Lubble .
Broken liyer Of Limestone oS ©
f
Cly.-
Shell - sand aul Clay.
Shell - sand.
Limestone.
Depot leriivd Srom
Cluister Hidye rocks.
Dark-broie hey.
'
—
x
7
—4---------4-+
XS
SOON NO BAUM ANS NNN
ANAS UAL LERRATRANY|
SSSSSTSNU TG SANTA SSESUUSNSNUONNG
a
AN WN
Rea
HOLOGICAL SECTION OF THI
E UPPER PERIOD AT STEINHEIM .
= =
———————— 7
(RRNA
—__
OF PLANORBIS AT STEINHEIM. 51
It is quite curious that under these circumstances, such a close agreement could
have been obtained as is exhibited in the preceding table. In this table, however, I
have taken the liberty to transform the word sand into shell-sand, otherwise Sandberger’s
table is given literally. This was done, because in my own notes and sections all hard
sand is put down as shell-sand, whether entirely composed of shells and their fragments,
or largely made up of detritus.
The sections from 1-8 inclusive, were taken from the precipitous sides of the various
pits, which are located on the Geological Map. The measurements were taken with
a rule or tape in millemetres, from the face of the strata, and in no case estimated.
Nevertheless, the thickness of the limestone partings are quite often exaggerated,
in order to make them of an appreciable thickness in the printed sections, where,
if reduced to ;1,, they would in some cases be too thin to show the cross-bars
which indicate their lithological character.
It may be said that there is general prevalence of the clay layers below in the lower
parts of Sections 4, 6, and probably also in 2, 3, and 7, 8, if they had been penetrated
sufficiently ; and that these clay bands are for the most part destitute of fossil shells.
Above the fish layers ¢ the sand predominates until we reach formation m, when the
clay again appears in excess. It will be observed that this coincides with the three great
faunal groups which may be made, the period of the PJ. Steinhemensis which is rare
above the fish formation ¢; of Pl. trochiformis, which is so abundant from formation d to
J, inclusive ; and of Pl. oxystomus which is equally characteristic of formations m to o,
inclusive. This is apparently contradicted by the prevalence of clay in formations / to i,
inclusive, in sections 3 and 4. We can, however, account for these as unfossiliferous
partings between the layers of shell-sand, corresponding to the limestone partings of the
the other sections.
Notwithstanding this apparent correspondence between the kind of bottom obtaining
in the lake at any one time and the species of shells living at that time in the
waters, there are many failures which prevent the application of this rule in detail.
Thus, the oxystomus series, which is prevalent im the clays of formation m, in Sections 3,
7, and 8, are equally prevalent in the sands of the corresponding formations in the
Cloister Pit, and in the Coarse Limestone of the Lower Period. Pl. trochiformis,
also, which appears usually only in the shell-sands, is very abundant in the upper
clays of Section 8, and the formation p, of Section 7. All species seem to be found
in about equal abundance in the limestone partings, but are rarer and often entirely
absent in the thin clay layers, or partings described above, and in some of the thicker
beds.
Nevertheless, the general tendency of the observed facts, leads to the conclusion
that the entire series of animals found below formation m preferred to inhabit localities
in which sand was being deposited, or had sandy bottoms, and those from formation m
upwards were either equally well fitted for clayey or sandy waters, which seems the
most probable conclusion, or preferred to dwell in clayey localities.
This conclusion derives additional probability from the fact that the return of the
trochiformis fauna, which occurred in formation x, in the East Pit, Old Pit, and New
Pit, was accompanied by a deposit of shell sand.
52 F HYATT ON THE TERTIARY SPECIES
The dip of the strata is quite irregular, considering the limited boundaries of the pits,
varying from 10° to 30° of inclination outwards on all sides of the central hill.
This elevation, to a certain extent, evidently took place before the formations of the
pits were entirely completed. This is shown by the pocket contaiming the Pl. multiformis
and Pl. discoideus shells in the New Pit, and also by a similar pocket in the East Pit.
Formations m and « 2 of
Section 9 were evidently de-
posited one upon the other
in the New Pit. The only
way to explain the appearance
of the wood-cut, after this,
is to imagine that the fold-
ing took place along the lines
of elevation. The wood-cut
represents a_section at right
angles with the dip, so that
Shanon the folds run across the strike
of the layers.
Subsequent to the folding, a certain amount of denudation must have removed part
at least of the bed # 2, and the upper part of the bed m, in order to permit the deposition
of no, and x 3.
Whether the same tendency to fold continued, caused by the resumption of the
process of elevation on either side of x 3, and gave the basin-shape to n 0, deepened the
folds on either side, but did not alter them otherwise, leaving « 3 a symmetrical
hollow, or saucer-shape, is doubtful. They seem to belong to the same system of folds as
x 2 and the want of «x above is probably due to local denudation. On the face of the pit
on the north side of x 3, this is shown by the anticlinal bend in m, but even more
perfectly by the fact that » 0, and m become exactly parallel farther to the north.
Section 10 shows that some-
what similar conditions must
have obtained in the East Pit SOL
at about the same time. Un-
fortunately I had confused the =»
samples from « 1, with those 'm
c c | ee aaa SS eee S|
from k, and consequently only 52S =I: —S= SESS
rely on my notes made upon "-— — = Za
the detailed section. These SSS
Ke See
speak of trochiformis in two =
places as prevalent, but not |
abundant ; whether, therefore, a Ze
other fossils occurred with this
I cannot say.
Here the bed @ is in both cases a pocket—in one case in a fold, and in another evidently
occupying a hollowin an undisturbed clay layer. It is very evident that formation
SECTION 10.4
1 These sketches are not drawn to any definite scale.
OF PLANORBIS AT STEINHEIM. 53
x 1 of Sect. 3, and Section 10 above, and of Sect. 6, is not the same as formation x 2
of Sect. 7, since they are separated by the clay bed m, and for the same reason formation
x 3, of Sections 3 and 7, is not the same as x 2, since these are separated by formations n
and o. ‘There are really, therefore, three series of formation 2, due to the colonization
and re-colonization of the same spots by the persistent forms of PJ. discoideus and
Pl. trochiformis. How is it possible for « bed fauna to alternate in this way with
clay in pockets, or in folds, as the case may be, or with beds of pure shell-sand and
shell, without recognizing their resemblance to the same mode of occurrence of similar
pockets in many of the clay layers below? That they were ruims of the older
trochiformis formations and were swept into these well defined local depressions is
of course possible, but it is an assumption which an experienced collector would be
slow to adopt. It is a well-known fact that deep holes in water-ways are usually
more or less filled with dead shells of various kinds, but these usually exhibit decisive
marks of the rough handling they have received from the currents.
This does not appear in the shells of the x beds so far as I have observed them, and
even in such a small lake as Steinheim this must, I think, be asked for. Many shells are
unquestionably water-worn and, if so, why not all in these beds if, as claimed by Dr.
Hilgendorf, they are made up of wholly transported materials.
The upper layer of limestone in the Old Pit, and all the layers of limestone above
formation 7, in the East Pit are fragmentary. These fragments lie more or less closely
together, and look very much like continuous layers broken up in place by the bending
of the strata. Whether these may be taken as evidence that the strata lying upon them
at the time of their last elevation was not of great thickness, it would be hazardous at
present to say. One fact, however, seems to indicate something of this sort. The lime-
stone above J, was probably free from any great pressure at the time the folds took place,
which formed the pocket at x 1, in section 10, as also was that of / in the Old Pit. This
suggests that the same condition of affairs probably occasioned the breaking up of the
succeeding layers in the East Pit.
The formations seemed to have been disturbed in the East Pit, and in the Old Pit, at
about the same time, that is after the deposition of « 1 upon /, or k, 7. This did not seem
to affect the strata in the New Pit, however, until after the deposition of clay beds con-
taining fossils, which caused me to synchronize them with m and n, 0, in the East Pit, and
the bed « 2 which was deposited between them.
The broken aspect of the layers of limestones were not, when I saw them, similar
to the descriptions given by Dr. Hilgendorf in “‘ Neue Forschung in Steinheim,” p. 452,
but possessed in all the cases observed by me, a regularity which I could only
account for as the result of the bending of the strata after deposition. It is well known
in this country that not very dissimilar effects occur from the compression of gneiss
occasioned simply by the removal of the superincumbent rocks. The upper layer
relieved from the weight, in some spots forms miniature anticlinals and synclinals, and in
others bursts with considerable violence in the quarries of Monson, Mass., where these
phenomena have been observed by Prof. W. H. Niles.’’ I could not understand the reg-
1 Proc. Bost. Soc. Nat. History, x1v, 80.
54 HYATT ON THE TERTIARY SPECIES
ularity which the upper layer of limestone in the pits presented, if the pieces were trans-
ported there, and thrown loosely together.
It will, however be observed, that formation m, of the Cloister Pit, presents a fauna
closely similar to m, in the other pits, and that of no above in all of the pits is
quite as similar to m, as the fauna of « 3, above is to that of z 1, 2, below, wherever
that bed occurs twice. There is, it seems to me, just the same reason for maintaining
that m and no are composed of drift, as there is for maintaining that « is made
up in this way. In conclusion, I would say also, that there are the most positive reasons
for the belief that x in Section 8, represents the upper and not the lower bed 2, of Section
7. I find it so mentioned in my notes and sketches taken on the spot. I was, however,
unable to say whether m in Section 8 represented m alone, or both m and no,
of Section 7, with absolute certainty, since the south-east corner of the pit was concealed
by a recent and heavy fall of loose materials. One thing, however, can be said with
certainty, that a bed corresponding to lower x, on the east side of the pit, as repre-
sented in Section 7, is not to be found on the south side, and the thickness of the clay
on that side is very nearly equal to that of the two clay beds on the east side, and
it has every appearance of being continuous with those two, If, therefore, lower a is
drift, it had a very limited distribution, since it is certainly not found on the south side of
the New Pit. This also corresponds with the unquestionably mere pocket-like aspect of
the upper # deposit in the East Pit, and is evidently not in harmony with the supposition
that this is a bed of detrital matter, as represented by Dr. Hilgendorf, spreading over
the entire bottom of the lake. ;
I do not consider this point of any great consequence, or worthy of much debate,
since it makes not the slightest difference with regard to the main question, whether PJ.
trochiformis lived after the Pl. oxystomus bed was deposited, or not; though it is of vital
importance to determine whether oxystomus preceded trochiformis in time.
One statement, however, of Dr. Hilgendorf’s is of great importance, since it shows that
very considerable changes likely to disturb the regularity of the deposits in very confined
areas, as is claimed here, did occur in one case, whether they occurred in the latest Z’rochi-
formis bed or not. On p. 452,’ he states that in the Su/catus bed he found broken Stein-
heimensis clays “ Platten,” “ tenuis Gesteinen,’ blocks of porous sulcatus tufa, clayey
sand and Jura pieces, all mixed in the greatest confusion, and two metres thick. This
mass evidently was of very limited extent and shows how great are the local peculiarities
likely to be found in any one spot from the transportation of material.
As he says, these mixtures are apt to escape a careless observer, and I might add also,
any one perhaps, not especially looking for them. In this extraordinary mixture, how-
ever, of the Sulcatus zone, he found no intermixture of the higher occurring forms. This
fact he justly regards as very important to his hypothesis, smce the rocks also. are all
older than the stratum or zone in which he found them.
The characteristics and situation of the bed 7 appear to make it very suitable as a
standard for the comparison of all the formations above and below its level. It occurs
immediately between the beds containing the trochiformis fauna, and those containing the
oxystomus fauna, and it affords a strong contrast in its fossils and lithological characters,
and is also apparently universal in its distribution. These reasons have induced me to
1 Neue Forschung in Steinheim, Zeit. d. Deutsch. geolog. Gesellsch. 1877.
OF PLANORBIS AT STEINHEIM. 55
adopt it in the table as a fixed level through which I have drawn a dotted line. Depart-
ing from this in any section, it becomes possible to synchronize the different formations.
If we assume that the usual sedimentary matter held in suspension by the waters of the
lake was clay, and that these waters were saturated with lime, we have an explanation of
the rapid formation by deposition of the plates of limestone. This being the necessary
consequence of the undisturbed action of the water, we should have the dense limestone
layers deposited on the bottom wherever the currents were not disturbing it and spreading
out the coarser sand derived either from the Cloister Ridge rocks or the adjacent surfaces
of the Jura.
The constant shiftings of the local currents, due either to the obstacles they themselves
had built up or other disturbing causes, would produce this aspect of regularity in each
section of the layers, as well as the want of correspondence in the synchronous deposits of
even adjoining sections.
The widely distributed formations could never be limestones, but might occasionally be
composed of materials derived during floods from the surrounding country, that is of clay
or sand. A glance at the sections will show that this is the case since e is of shell-sand,
m of clay, and none of the limestone-tables are continuous. The general changes, the
predominance of shell-sand during the Trochiformis period, and of clay during the Oxys-
tomus period, would also seem to be accounted for by a greater or less prevalence during a
certain number of successive seasons of similar deposits, due to changes in the localities
from which the greater part of the drainage was derived, or to other local causes.
In this condition the Stemheim deposits of the Pits assume the aspects which might be
expected to arise in a land-locked lake with a central island. The deposits would be
formed in some places from the debris washed off of the rapidly disintegrating surface of
the island, and in others, even in close approximation, the ordinary formation of limestone
or the precipitation of fine sandy material, or flocculent clay, might take place in quieter
water, or farther from the shore. Any of our inland lakes present similar conditions
wherever local streams empty into them. During heavy rains as at dffierent seasons of
the year, the debris of the beaches and bottom is subject to noticeable variation within
very short ranges.
Another fact in this direction indicates also that the amount of time represented by
the Steinheim Pit Deposits must have been very limited. Strata slowly formed are
marked off in exceedingly thin layers, since but a small amount of fine sediment is held
in suspension by the water, and slowly deposited during a given period of time. The
thicker layers result from a larger amount of sediment which has been held in suspension
and falls with greater rapidity. This accounts for the finer bedding of the clays,
fine grained sandstones, limestones and so on, as contrasted with the coarser rocks and
rubble.
The strata and sometimes entire thick beds of shell-sand bear no marks of stratification,
and must, therefore, have been built up by continuous and rapid deposition. The
clay layers are of various degrees of thickness, but usually an inch or more,
and very rarely of paper-like thinness, and this is true also of the limestones. The
fish-layers of formation ¢ are particularly instructive in this respect. The fishes being
necessarily very destructible, testify to several things: first the rapid deposition of the
56 HYATT ON THE TERTIARY SPECIES
layers, which are an inch or more in thickness; second, the prolonged continuance of
conditions about equally favorable to the rapid formation of limestone, or of clay strata ;
and third, the unfavorableness of the waters, at this time, to the existence of the
fish, which must have died in vast numbers.
None of these facts, so far as the Pit Deposits are concerned, are in favor of the
vast periods of time which have been claimed by Darwinists, in order to account
for the changes which are supposed to have taken place in the fauna of the lake
during the Upper Period.
There is only one fact which would seem to interfere with this conclusion. Some
of the “ shell-sand beds” are mostly composed of broken shells, and it may be inferred
that they are wholly made up in this way. This may possibly be so, in some instances, in
the middle part of the deposits, but is of local occurrence, and not a general characteristic.
The limestones would come under this head more than any other, as might have
been anticipated from their chemical constitution, but even here in most cases the matrix
is an even-textured argillaceous limestone, and*is not invariably composed of shell
fragments alone.
It is very evident that the formation of the strata, either by precipitation or deposition,
was going on all the time, either as clay, limestone, or shell-sand, all over the area de-
scribed. The apparently regular interruption of the deposition of the clays and shell-
sands by beds of limestone are too local to indicate in any very positive way the constant
recurrence of periods of time or seasons when the waters of the lake were generally affec-
ted, and contained so little transported sediment of any kind, that limestone layers could
be formed on the bottom which would be continuous. These facts, the local distribution
of the beds of shell-sand in some clay strata, as in Section 5, and in several instances not
sketched in the section, in the East Pit and New Pit, the dark clay band d, Section 2,
in the midst of shell-sand, all appear to show that the unstratified beds were swept into the
spots where they are now found by currents of greater or less strength, and built up con-
tinuously during a period of time limited by the extra supply of water rushing down from
the drainage of the island, or the neighboring hills, or both. This extra supply of water
could only recur at certain seasons of the years ; therefore the unstratified beds either rep-
resent rainy seasons, and the intermittent local currents which they would naturally pro-
duce, or constant currents shifting in position from year to year, or season to season.
If the latter theory is accepted it becomes exceedingly difficult to interpret the regularity
with which the coarser beds were locally interrupted by the limestone layers, without
assuming that there were years or periods of years, during which the currents flowed con-
stantly bringing in shell-sand, and then shorter or longer periods of months or years of
rest. These would occur at regular intervals during which the currents flowed somewhere
else to return again by some inexplicable fatality directly over the same spot, begin to
increase in volume, and move so fast that shell-sand could be again transported.
The latter hypothesis appears to me to present by far the greatest difficulties, besides
being contrary to experience. If we adopt the former, the Steinheim Pit Deposits show
a very limited thickness, for the most part of loosely aggregated materials which must
have been heaped up in a shorter time than one would be led to suppose by the number
of new fossil forms produced and by a cursory examination of the strata.
OF PLANORBIS AT STEINHEIM. 57
I cannot, of course, presume to say that the period of time represented by the
Pit Deposits was or was not long enough to allow of all, and more than all the
changes which took place in the fauna, but simply point out the fact, that no grounds
exist for the assumption that they represent any very prolonged periods of time, such
as have been habitually, and, in my opinion, erroneously claimed, by most naturalists,
as essential for serious morphological changes in animal series.
Professor Cope’s researches among fishes and reptiles, the author’s among the
Ammonites, and, at a later date, Mivart’s work on the “Genesis of Species,’ have all
given alarge amount of evidence, which tends to show that vast periods of time are
not necessarily essential to the production of new species, or even new generic or
family forms. Nor is yet the converse true, that animals which have lived through great
periods of time, and many geological changes, are necessarily and correspondingly altered
in their organization. The testimony of all paleontologists bears witness to the last
statement, but the first requires more proof, and for this I must refer my readers to the
authors above mentioned.
In the chapter on the geology of Steinheim, an attempt has been made to show
how great the denudation of the surface of the rocks of the Cloister Ridge must have
been, and that a part of it probably took place before and during the deposition of the
lower part of the Pit Deposits. The evidence that a great amount of denudation
has occurred since the Pit Deposits were formed, would not need to be summed up
to any one who had seen the locality.
The whole area of the circular valley must have been at one time covered to a consid-
erable depth by stratified deposits similar to those of the Pits, either resting upon the de-
nuded limestones of the Lower Period, or what is more probable, merely abutting against
these remnants on the sides of the valley. These have almost entirely disappeared, since
what is left adhering to the sides of Cloister Ridge can only be considered as the merest
fragments of what the mass originally was. What the vertical height of these deposits
must have been is of course wholly problematical. Sufficient evidence has been brought
forward to show that, though the elevation of the Cloister Ridge took place before the Pit
Deposits were formed, this elevation was continued certainly after their deposition was
completed, and probably also went on more or less while they were being deposited. This
of course, would be an element in the problem, as well as the determination of the extent to
which the neighboring heights and the outlets, which once bordered and limited the depth
of the waters of the lake, had suffered from sub-aerial denudation. This portion of the
problem, therefore, can only be safely approached by a local geologist, and it would be
idle for any one else to attempt an estimate. That the Pit Deposits were much thicker
than they are at present, and that they present in every way only fragmentary evidences
of what the fauna of the lake was, as well as of its geological history, can hardly be
gainsaid, unless different conditions governed in former periods from those which we now
find in similar localities.
It remains only to add that ample provision for the removal of any required thickness
of deposits once probably existed in the drainage of the surrounding mountains. A pro-
portion of this even now passes through the valley of Steinheim to the Steubenthal as
described in Quenstedt’s article previously quoted, and ample evidence of the former exist-
ence of a more powerful stream, may be found in the official geological map of Wurtem-
burg, “ Heidenheimer Blatt,” and its accompanying text by Prof. Fraas.
58 HYATT ON THE TERTIARY SPECIES
IV. Descriptions oF SERIES AND SUB-SERIES.
FIRST SERIES.
Planorbis minutus.
Planorbis multiformis minutus Hilg., Monatsber. d. Akad. d. Wissensch., Berlin, July,
1866, f. 16.
Pl. Zietenii (pars) Sand. Land und Siissw. Conchyl. d. Vorwelt., p. 645.
Pl. hemistoma Klein, Jahreshefte Ver. Naturg. Wiirttemb. 2 vol. 1847, pl. 1, fig. 25.
This remarkable species seems to have in the aspect of the whorl, and the general
thinness of the disc-like form a very close affinity for P/. crescens. It differs,
however, in the greater involution of the whorls in the healthy forms which precisely
resemble Pl. Kraussii, in the aspect of the umbilici when viewed from above or
below. This part is narrower, and the internal whorls less exposed than in PI. crescens.
It is plain that a flattened form of Pl. Kraussii would be precisely intermediate between
these two. After much search, I found a specimen which was a trifle flatter than
the usual square form, the outline being similar to that of Pl. minutus, but it was
still considerably larger than the ordinary specimens of this species, and could not be
considered a hybrid. A close comparison between the largest minutus and Pl. parvus, was
more successful. The typical minutus forms have a narrow umbilicus, as compared with
Pi. parvus, in any of its varieties, but this characteristic is exceedingly variable in
the species, and many of the specimens have a wide umbilicus on the lower side. If we
compare these with the young of PJ. parvus, as figured on pl. 3, line a, fig. 6, 20-22, they
will be found to be almost identical.
Var. minutus can by no means be considered the ancestor of var. parvus, on account
of closer affinity of the latter for P/. levis, and Hilgendorf has also found it in company
with Steinheimensis in the lowest formation. Both Hilgendorf and Sandberger decided
that the affinity of this species was closer for Pl. Jevis than for var. Steinheimensis,
and this is also my own conclusion. My observations agree also with those of Hilgen-
dorf, in respect to the derivation of crescens from parvus, and with both his and
Sandberger’s, in tracing a close affinity with P/. minutus. They differ, however, in
preferring to trace a direct connection between Pl. minutus and Pl. levis, through
the normal forms of both species, rather than through the aequiumbilicated varieties
of Steinheimensis.
Again, if we compare a large minutus with the forms of Pl. parvus having an angular
outer whorl, pl. 3, line &, fig. 1, this similarity strikes the eye very forcibly. Compare
also the figures of parvus on pl. 3, with the those of minutus, line a, pl. 4. This
connection with parvus settles the question of size, since this variety of parvus is
certainly an intermediate species in this respect, between minutus and Pl. levis. I
have, therefore, separated this angulated form of parvus, figs. 1-4 and 11, line &, pl. 3,
under the name of i@*, to distinguish it from the normal forms of parvus, which
lead into PJ. crescens.
It only remained, therefore, to find some form of a full-grown specimen from Undorf,
which would show the characteristics of Pl. ™2es. This, on the reception of
Sandberger’s specimens, was accomplished, and is figured on pl. 9, fig. 16.
OF PLANORBIS AT STEINHEIM. 59
Starting then with P/. levis, we can trace this series through a variety found in the Pits
which we call the "5 (equal PJ. m. parvus Hilg. in part), into the more angulated varieties
of Pl. minutus. This last figured on pl. 9, fig. 17, and line e, fig. 16, pl. 2, is the PU.
triquetrus of Hilo. Notwithstanding this name it will be found by comparison with such
forms as have just been mentioned, as PI. minuius that it differs only im size.
This leads into a variety of Pl. minutus, fig. 18, pl. 9, and fig. 1, line e, pl. 2, in
which the breadth and angularity of the inner part of the aperture is still maintained, but
the shell is otherwise a variety of Pl. minutus, and has the thinner proportions of the
young whorls observable in this species. Both this and fig. 17, pl. 9 seem to fade by
imperceptible gradations into fig. 19, P/. triquetrus, also figured in nos. 1-3, pl. 4, line ec.
Or they may be traced into the less involute formsof P/. minutus. These have exceedingly
cylindrical whorls, and umbilici entirely open on both sides, and connect the more involute
or levis-like minutus forms, with the uncoiled P/. denudatus.
Remarks: On pl. 4 this genetic series is fully illustrated. Line @ exhibits various va-
rieties of PJ. minutus. These appear to be identical with the Pl. m. minutus, var. 8
teres of Hilgendorf in part, and in part are equal to his Pl. m. minutus, var. « typus.
I think that figs. 1, 3, 5, 7, lme @ would be considered as belonging to the first named.
The figures on line a, however, are arranged with the view of exhibiting the varieties
which tend to deflect the whorl by growth against the spiral. Fig. 7 is an extreme form
in this respect. Figs. 2, 4, line 6, are typical minutus forms, and connect directly with
Pi. tigers fies, T-8, line b. These have a closer umbilicus on the lower side (compare figs.
2 and 6, line b), and in this respect approximate to P/. triquetrus. This last named species
is figured on line e, figs. 1-5. Pl. triquetrus, var. turbinatus figs. 5 and 9, line 6, the latter
a section, exhibit very distinctly the tendency towards trochiform growth of the spiral,
which is common in all the species and varieties at Stemheim. This also, is the proper
place to notice the modes of variation among Steinheim shells.
It will be observed that the varieties of any one of the forms previously de-
scribed fluctuate between two extremes so far as the spiral is concerned. As in the case
before us these extremes are indicated by a tendency to reverse the spiral in some forms,
and to increase it in others. This correllates with a widening of the umbilicus on the
lower side in the former, and a narrowing of the umbilicus in the latter.
These two again correllate with more cylindrical whorls in the former, and wider or
larger whorls in the latter. The latter correllation is important, since it enables us to
draw one more important distinction between the healthy and unhealthy series, or the
progressive and retrogressive, as I have called them. Thus on the Summary Plate, pl. 9,
series 2-4, exhibit this in a marked manner, and so also does sub-series 5, which thus
shows another progressive characteristic besides those previously enumerated.
If there is any truth in the assumption that health marks the favorable character
of the surroundings, and that such correllations are signs of healthy growth, then
the sub-series previously assumed upon other grounds to be diseased or unhealthy,
might show the universal tendency to form a spiral, but ought to be deficient in
healthy characteristics. I have already shown this to be the case in different degrees
according to the character of the sub-series, and I now have to add, that they are inameasure
60 HYATT ON THE TERTIARY SPECIES
exceptions to this law of correllation, since in sub-series second, the whorls become less in
respect to their breadth, or more cylindrical as has been previously stated. It will also be
seen by looking at pl. 4, that there is a decided increase in size in the costate sub-series,
as was to be anticipated in correllation with the partially progressive characteristic of the
well-marked coste which appear in this sub-series. The contrast between the large and
comparatively healthy specimens of this sub-series and the smaller distorted ones, is very
well shown also on lines h and &, as contrasted with g and 7. This tendency to such
correllations as here described, show that the varieties of each species are quite closely
parallel with the general progress or morphology of the most advanced group, the Fourth
Series.
Thus not only does every species vary from a more or less aequiumbilicated to a more
or less asymmetrical rofundatus or trochiform-like shell, but the whole series of
changes in form of the Fourth Series is similar. See pl. 9, figs. 1-7.
To this I might add if space permitted, many other examples among the fossil
Ammonites and living animals. In fact, in my experience, the general limits of
variation are indicated in the range of form of almost any numerously represented
species of a group. The difference between the morphological range in a species of this
kind and the group to which it belongs being one of degree, one of quantity rather than
quality,! or otherwise there could be no parallelism between the morphological variations
of form in the species and the series of forms, which are comprised in the group to which
the species belongs.
Planorbis triquetrus.
Planorbis multiformis triquetrus Hilg., Op. cit., fig. 17.
Var. typica.
Fig. 18, pl. 9, leads into shells, fig. 9-25, line g, pl. 2, in which the upper side becomes
slightly channelled, and sometimes the lower side also, as in Hilgendorf’s figure.
We are here presented with a remarkably close parallelism with the thinner forms
of Pl. tenuis, but it is not very difficult to separate even large perfect forms of
Pl. triquetrus from the young of forms which are figured in the two lines below on the
same plate.
Var. turbinatus. This includes three specimens, which, as in figs. 20, pl. 9, or figs. 5, 6,
9, pl. 4, line b, become more trochiform than var. typica.
Planorbis denudatus.
Pl. multiformis denudatus Hilg., Op. cit., fig. 19.
Hilgendorf’s arrangement of the derivative forms which may be designated by this
name, appears to be defective, in so far as he traces the uncoiled, smooth or “ denudatus”
variety, to the coiled and round whorled * costatus.” My collection gives a perfect
series, without break of any kind, from the perfectly smooth Pl. minutus to a
completely asymmetrical shell, which differs but slightly from Hilgendorf’s figure
of Pl. denudatus.
1Jt must always, however, be understood that parasites supreme modifier, and the reaction of the organization
do not come under this law, nor any range of forms however against the environment, and the maintenance of the type by
closely connected, which have been placed in exceptional this reaction, cannot survive in the presence of continuously
surroundings. As previously stated, the environment isthe exceptional surroundings.
OF PLANORBIS AT STEINHEIM. 61
Thus, figs. 1-5, 7-8, 10-14, line e, 6-8, line g, pl. 2, show this series perfectly enough,
though too slightly magnified to be convincing with regard to the smoothness of the shell.
I have been unable to detect any cost on any of these shells, and have seen much more
turbinate forms than fig. 8, line g, almost completely uncoiled. I have, however, not yet
succeeded in finding the exact equivalent of Hilgendorf’s figure, which must be very
rare! The forms which have the young so completely trochiform, usually have the
last-formed whorls widely uncoiled instead of being so contracted as in his typical
specimen.
On pl. 4 this series is shown fully and may be followed from the minutus forms
through such specimens as figs. 6-9, line ce, and the more uncoiled forms on line d,
to the completely trochiform and uncoiled shells photographed on line e. None of these
show any costae.
The decrease in the breadth of the whorl of the specimens on lines d and e,
as compared with the specimens less uncoiled on line ¢, and the true minutus forms
is also perceptible. The flat form of the young in figs. 10-11, line e, can also be perceived,
though less perfectly because the minute size of fig. 11 threw the lower part out
of focus. .
This young is like the young of Pl. minutus, and of Pl. levis, but I failed in
finding an adult of any of these forms which could be considered identical with it.
This was not a surprising result, since any resemblance occurring at so early a
stage with any adult form in tlie shell alone was not to be anticipated, especially
with the adult of any proximate ancestor.
The law of accelerated development by heredity, which has been noticed in other
series, is here also demonstrated. The uncoiling begins at earlier and earlier stages
in the different species, and it is the same story with the increase in spirality. If
any arrangement in series is in general terms a fair presentation of the natural
accession of the forms, then this law must be admitted. It will be found to hold
equally well when applied to any serial arrangement of species based on all the
attainable evidences of affinity, in the identity of the extreme young stage, the
resemblances of the succeeding stages to supposed or traceable ancestral forms, and
the similarities of the adult, old age, and diseased forms.
I have already sufficiently traced the resemblances between these retrogressive
uncoiled species and the partly uncoiled, diseased shells of the progressive series photo-
graphed. Figs. 4-5, line a, 4—5, line b, and 1-2, 6, line c, pl. 8, are particularly instructive
in this connection, since figs. 4-5, line a are senile deformities, figs. 4-5, line b, the results
of normal disease, and the remainder doubtful or due to wounds. A
The series traced by Dr. Hilgendorf between this species and costatus, can undoubtedly
be formed, but it seems to me perhaps more natural to consider the costate forms
as a distinct sub-series. They can certainly be separated quite as easily as any other
set of species, if we recognize the fact that the different series all have a tendency
to reproduce similar series of forms, which may be arranged in parallel lines.
1 This defect in my own collection has been most deeply indebted for the beautiful specimen of this form,
generously supplied by Dr. Hilgendorf himself, and I feel which he has sent me.
62 HYATT ON THE TERTIARY SPECIES
This appears also to have been the result arrived at by Sandberger, though from
his conclusion, I must also differ in part, on account probably of the opportunities
afforded by a larger amount of material, which has enabled me to trace the connection
of costatus with ™7s,
evis
Planorbis costatus.
Planorbis costatus Klein, Op. cit., pl. 1, fig. 24.
Pl. multif. costatus Hilg., Op. cit., fig. 18, 18 a.
Pl. costatus Sand., Op. cit., p. 647, pl. 28, fig. 5.
Var. costatus
minutus *
In order to understand what follows it becomes necessary to trace the relations of the
strie of growth, and the costz of the shells. It will be observed that the striae of
growth are of various degrees of fineness and prominence in all the species of the Stein-
heim Planorbidae. Sometimes they are hardly observable, smce they are not prominent
enough to be seen with the unassisted eye, though visible with a magnifier of four diam-
eters, as in Pl. minutus and denudatus. There are all degrees of this in PJ. Steinheimen-
sis for example, until we find specimens in which they are plainly visible by the naked
eye. In other species, such as Pl. tenwis, discoideus, trochiformis, oxystomus, and supre-
mus, they are distinct enough in many specimens to catch the light, and be visible in the
photographs, and in all specimens with the naked eye.
This is also an effect of old age, as in the older portions of the whorl of the senile
specimens of Pl. suwpremus, fig. 1-4, line d, pl. 8. In these, and in many others, any
cause which retards or arrests growth, causes an increase of shell deposits at the lines of
growth, and a consequently greater prominence of the striz. That these more promi-
nent strie may be also a hereditary characteristic in perfectly healthy shells is demon-
strated by such series as Pl. /evis to Pl. crescens, and others, and by Pl. discoideus var.
sulcatus, ete.
In Pl. crescens they are visible under a magnifier, as in Pl. Steinheimensis and Pl.
levis, and in none of these, or in equally finely preserved shells of PJ. minutus, is there
any tracable difference except in point of fineness. This fineness also differs in different
shells of the same species, precisely as it does between different species, being finer in
some than in others, according to the rate of growth of the animal. Between each pro-
jecting ridge or striation there is a (usually, but not invariably) sunken smooth
band of exceedingly variable width in the same shell. At intervals there are stria, more
elevated than the rest, more elevated than those on either side of them, which are the
costee proper. They are formed by an arrest of the growth at this point, occasioning a
slightly greater thickening of the shell. The rim of the opening not being absorbed in
these shells, when growth is resumed at the usual rate of increase, and the true striz
begin to be again formed, there remains a larger and more prominent ridge. | These costz
will often occur is some specimens of a species, and not in others. They are quite rare
in those species which, like Pl. Kraussii, have very fine strix of growth, but can be dis-
tinguished in some specimens. Care must be taken in both this and PJ. minutus to
obtain shells which have not been acted upon by any re-agent. The larger number of
OF PLANORBIS AT STEINHEIM. 63
the shells of P/. minutus, and a very large proportion of Pl. Kraussii appear to have
been subjected to the action of an acid sufficiently powerful in many instances to cancel-
late the outer surface, and destroy the striz. It is, however, easy to distinguish the per-
fect shells after a close examination, though sometimes the strize are so fine and equal,
that at first sight, even under a magnifier, the shell appears to be absolutely smooth.
The coste are not found on some specimens of P/. Araussit or Pl. minutus, but
in others they are distinct, though in the latter more difficult to see than in the
former, on account of the size of the shell. The cost in their turn are apt to
be confounded with the still larger and more opaque ridges left by the building in of
mouth rims, which have marked long periods of arrest of growth in the shell. I have
not been able to reduce them to any law on account of the perfect way in which
they are generally covered up when growth is resumed. In recent species of Planorbidee
it is quite possible to trace them occuring at regular intervals by their opacity and color,
and they are evidently due to seasonal arrests of growth, but in the fossils they
are too readily confounded with the striw, though occasionally noticeable. When
the shell attains its growth, however, the arrests of growth appear not to be wholly
limited by the seasons. The building period appears to be shorter and more irregular,
and in distorted specimens this is particularly noticeable. See, for illustrations of this, the
figures of PI. supremus, pl. 4, already described, and the following, fig. 9, line g, fig. 13,
line h, pl. 1; figs. 2, 4, line ¢, fig. 5, line m, pl. 2; figs. 1, 7. line g, fig. 1, line n, pl. 3;
figs. 5-5, line a, figs. 1-4, line d, pl. 8, all simple forms. A noticable case of distortion
combined with senility is that of fig. 10, line r, pl. 2, which is repeated on line e, fig. 2,
in a different position.
These were not specially selected to show these peculiarities, but are very good
ordinary examples of the pathological conditions described. In any shell there may
be every condition from that of the young or full-grown healthy shell marked with
striz, coste, and permanent mouth-rims, to its old age form, in which the costs are
susperseded by permanent mouth-rims occurring at rapid intervals, and finally to
the last stage of debility, in which the latest built mouth-rim projects only slightly
beyond the former and greatly narrows the aperture, as in fig. 4, line c, pl. 8. The
thickness of the permanent mouth-ring varies greatly in different adult individuals,
even of species like P/. oxystomus, which habitually have a very thick lip in the
adult. As a general rule, however, the mouth-rims are thinner in the young shells
of all forms, whether species, or varieties, or individuals, than in the adults ; and
especially so in those which thicken the lips or rims during their subsequent growth.
This peculiarity aids in the concealment of the cicatrix or ridge of the permanent
mouths during growth, so that these become apparent in most shells from the
Stemheim Pits, only when the edges have been broken during the season of rest, or
after the shell has reached the full adult size, and forms a thicker rim than is nsual
in the young.
The first of the series of the costate forms are not distinguishable from the
typical Pl. minutus, or from the varieties intermediate between that species and
Pl. denudatus, except by the presence of distinct fine coste. These do not occur
in the young shells of the forms most closely allied to Pl. minutus, but only on
the last whorl in the full grown adult shell. This point I have established by
64 HYATT ON THE TERTIARY SPECIES
repeated observation, it being very important in its bearing on the law of acceler-
ation. Thus figs. 8, line &, 1-2, line f, pl. 4, are shells in which they appear only
on the last part of the last whorl, fig. 3, line f, at an earlier period on this same whorl,
fig. 4, line f, at a much earlier stage, at least half a whorl sooner in the growth.
In all of these the costz are closely approximate. Though there is very considerable
variation in this respect, the differences between these and var. major, as shown on
line f, pl. 4, and on lines g, and i, where they are of about the same size, bemg
distinguishable by a practiced eye in almost all shells.
Line g shows a variety identical with Hilgendorf’s var. typica of Pl. costatus, and figs.
1-5, line i, the equivalents of his var. platystomus of the same species. The coste are
very wide apart in the latter, which in my view are the young of the larger specimens of
the coarsely costate forms on line & above, while the specimens figured on line g are the
young of those shown on line h, in which the same peculiarities of the costae are observ-
able. The extremely uncoiled forms are in all cases, of course, regarded‘ not as young
forms, but as diseased shells, which as previously observed, would of course be under-
sized in comparison with more healthy individuals of the same species.
I have not succeeded in finding any hybrids or shells of an imtermediate character
between these and the corresponding uncoiled smooth forms of Pl. (intii’. The different
forms may be in general terms distinguished into two varieties: Ist, Shells with sharply
defined crowded costa. 2d, Shells with widely separated costa. These may have their
variations in the coste. (1), having either sharp, forward projecting, rim-like costa ;
(2), thick, vertical lip-like costae ; (3), thick costae overhanging, opposite to the direc-
tion of the growth of the shell. These modifications are due to the way in which
the costae are built up. In the first place, the re-building of the shell is begun on the
inside of the old whorl, leaving the edge of the mouth projecting forward like the
free edge of a frill, fig. 9, line g, pl. 4. The second is accomplished by the curious way
in which the new growth is begun, immediately along the flarmg edge of the mouth so
that the resulting coste are of double thickness.'. The third is occasioned by a slight
overlapping of the old edge of the mouth by the new growth, so that the most abrupt
portions of the costa are the posterior sides, instead of the anterior, as in the first
instance.
Varieties 1-2 may be subdivided in precisely the same way, but the peculiar ways in
which the variations are occasioned in var. 2, are more easily observed.
Notwithstanding these facts, however, it is noticeable that the last two kinds, or abnor-
mal cost, are very rare in the finely costate series, and very common in the coarsely cos-
tate, or 2d variety.
The distorted varieties are precisely parallel with Pl. denudatus, so far as the form of
the whorls and the spiral is concerned, but bear the most indubitable marks of their deri-
vation from the various costate races above described. They are of all degrees of uncoil-
ing except the absolutely uncoiled, that is, one in which the extreme young is not closely
coiled. The whorls may not touch anywhere, after the first part of the first whorl is
built, but this is invariably in close contact with little bag-like ovishell, due to the prepo-
1 This variety is figured in the coarsely costate specimen, — ety, fig. 7, line 2, pl. 4.
fig. 1, line k, pl. 4. See also for the next described vari-
OF PLANORBIS AT STEINHEIM. 65
tent inherited tendency to form a closely coiled shell during the protected stages of the
earliest period of growth. I failed to find any finely costate forms, with distorted or
open whorls.
Line h, pl. 4, gives photographs of the variety major of Hilgendorf, and he probably
also includes in this variety the coarsely costate forms on line kh.
Var. major (Pl. multiformis var. major Hilg.), fig. 15, line 6, pl. 5, is an exceedingly fine
specimen of the largest size. It is comparatively rare even in formation 2 of the East
Pit, where it was most abundant. It was, however, not difficult to ascertain that it was
divisible into sub-varieties, having fine and coarse costae, but these are invariably more
or less widely separated, and therefore belong to the coarsely costate series.
The following table depicts these relations diagramatically for the purpose of placing
them in a clearer light.
Coarsely costate sub-series. Finely costate sub-series. Smooth shelled sub-series.
Pl. costatus var. Pl. costatus var. Pl. denudatus.
platystomus. distortus.
Pl. costatus var. Pl. costatus var Pl. minutus.
obtuso-costatus. acuto-costatus.
costatus ; costatus PI. minutus.
] ed parce PL
minutus. minutus. |
| |
weet ee mn $s
Pl. minutus and its immediate affinities are shown by three sub-series. Each of
these have the cylindrical and less involute forms corresponding to Pl. minutus, and
the completely trochiform and partly uncoiled cylindrical whorled forms, the equivalent
of Pl. denudatus. Thus each of the three sub-series presents a similar succession of forms,
the ancestral, or closely allied, the highly differentiated or distinct forms of the third line
and the diseased and closely representative forms of the fourth line.
Ido not think that the accepted limitation of a species to one or more series of forms
connected by hybrids or intermediate varieties, is of any use whatever in estimating
the value of the characteristics in cases like that under consideration. The value
of these must be determined with reference to all the members of the group in which
they occur; this alone can give their approximate taxonomic meaning. Thus, by
reference to the Planorbidae generally, we can show that the modification represented
by forms in the smooth and costate series, are really more distinct than most of the
species of the genus Planorbis. If the intermediate forms were lost or destroyed,
there would be no doubt on this point. If the word species can be used to mean
anything at all, it must be restricted in given groups to certain limited series of
modifications, having a certain approximately determinable value. If the term can
be used atone time to designate so great a series as is included from minutus to
costatus, or Steinheimensis to trochiformis, or even discoideus to trochiformis, I can
see no reason why at another time it may not be used for all these forms together, as
Hilgendorf has done.
Fig. 15, line 0, pl. 3, has no costae on the last part of the outer whorl, and this repre-
sents the extreme old age condition of the costate series. This return of the smooth
66 HYATT ON THE TERTIARY SPECIES
condition of the young shell is-exactly comparable with the conditions attending senility,
as observed first by D’Orbigny among the Ammonites, and subsequently by the author,
among these shells, and also in other departments of the animal kingdom. It is apt to
mislead the observer, since, although it occurs in the life of the same animal, and in the
same organs, it belongs to a class of resemblances which are not generally understood,
and have been neglected by all but a few observers. The absorption of, or more exactly
speaking the failure of the animal to build up, the costae during the last stages of its
existence, causes the whorl to revert to its early smooth condition, and while the latter is
due to heredity, the former is evidently pathological in its origin. If a represents the
young and its inherited characteristics, and 6 the new characteristics added during growth
to n the adult stage, then a+b+n—m, the adult forms. The amount of resemblance
between the senile stage and the young, therefore, depends upon how much or what parts
of 6 and v are subtracted by absorption or decay during old age, and as it is never the
whole b+ 7, which is destroyed by senile disease, the resemblance produced can never be
identical, though they may appear so to the eye in some organs or parts.
Another way of explainmg these phenomena is admirably illustrated by the numerous
cases which have been cited of the sudden return of youthful and apparently long forgot-
ten facts, songs, etc.,in the memories of old people. They are evidently the survival and
the sudden reappearance of youthful characteristics, which have been hidden under a mass
of differential characteristics. These being removed the basal form becomes once more
visible.
The foundations of a building are the first to appear, then become invisible under the
superstructure, and become visible again only by the decay and destruction of that which
they supported.
SECOND SERIES.
Planorbis parvus.
Planorbis Zieteni (A. Braun) Sandb., Op. cit.
Pl. m. parvus Hilg., Op. cit., fig. 4.
The shells which represent this variety, pl. 3, line a, figs. 6, 20-22, have a defined upper
umbilicus and closely resemble in all essential characteristics those young forms of PJ.
Steinheimensis, which have the mouth deflected downwards and the third carina
exceptionally well marked. Figs. 10, 11, line b, pl. 1, represent specimens of this class,
which are a trifle stouter than the true parvus and are evidently the young of
Steinheimensis, since at earlier periods than the one figured the whorls have all the
peculiarities of Steinheimensis. The third carina, which is so prominent in figure 11, does
not appear until the shell has attained a stage considerably older than that in which this
carination usually makes its appearance in parvus. This is the case also in the more
compressed forms of Steinheimensis, such as fig. 9, line m, pl. 1, though in some of these
the resemblance of the nearly full grown shells to the young and adult shells of parvus is
even closer than in fig. 11, line b, pl. 1. This is undoubtedly attributable to their more
disc-like or flattened forms.
The specimens forwarded by Prof. Sandberger resolved the difficulties encountered m
the Pit Deposits and explained admirably the close affinities above described between
OF PLANORBIS AT STEINHEIM. 67
the young of Steinheimensis and the adult of parvus and the very evident differences
between the full grown shells of each variety. They are both probably distinct varieties
of Pl. levis derived directly from that species. Some of the specimens of one of the
varieties of Pl. levis from Undorf are identical with parvus and have been previously
described. ,
Hilgendorf regarded parvus as intermediate between minutus and var. aequiumbilicatus,
and also as in the same genetic series as crescens. Sandberger on the other hand joined
minutus, teres, and crescens under the name of Zietent Braun as a distinct species.
Planorbis crescens.
Pl. m. crescens Hilg., Op. cit., fig. 16.
This species is perhaps the least variable of any of the Steinheim forms. The
connection with the preceding is clearly made through some specimens slightly stouter
than the norm, but these are exceedingly rare in my collection.
The mouth and last whorl may be central or turned downwards. I have so far
seen none with these parts deflected upwards or against the spiral. Some of those
with the mouth in the middle have nearly equal umbilici, but these are extremely
rare forms. Those with the mouth turned downwards and the upper umbilicus only
slightly none) as in figs. 9-12, line ¢, pl. 5, and those with no upper umbilicus, as in
figs. 13, 14, on the same line, are very numerous. Quite a trochiform variety ends
the tendency to variation in this direction, of which I have found one specimen,
pl. 9, fig. 15, but even in this one the whorls retain the same attenuated aspect and
form. The third carina is prominent in all of these, and in some the fourth makes
its appearance, especially in those like figs. 15, 14, line e, pl. 3. The striae of growth
are particularly well defined in this variety, even at the earliest stages, and in all
specimens.
Remarks. On pl. 5, the entire genetic series as here described, is figured. The four
shells on line @ are undoubtedly Pl. levis, from Undorf, and show the close relationship
with Pl. parvus from the Pits, as exhibited on line b. Pl. “sels is exhibited on line ¢
and on line d the ordinary forms of Pl. crescens.
The angularity of the outer whorls resulting from the ‘development of the third
carination is evidently a mark of affinity with PJ. levis, in which this is a constant
characteristic. The gradual flattening of the form of the whorl is shown in the right
and left series of figures, and the close resemblance in form of the whorl to that
of PJ. levis, in fig. 2, line 6. Compare this with some of the forms of PJ. Jevis, on
pl. 7, which are in the same position. This flattening of the angularity of the whorl,
and the openness of the lower umbilicus, fig. 5, line d, are both low characteristics,
and show that the series has altered but very little in the characteristics which
were derived from Pl. levis. The increase in size is notable, and this must be
classed with the progressive series. The progression in the flattening of the whorls
and the angularity of the outer whorl which takes place in the adult also characterizes
the young, and is inherited at earlier stages in each form, until, in fig. 2, the young
begin to show the crescens form at a very early age.
1 See p. 35.
68 HYATT ON THE TERTIARY SPECIES
No very decidedly diseased or aged forms were observed, but the spiral is often
slightly irregular.
The peculiar gibbous aspect of the whorls in fig. 7, line b, is exaggerated by the
photograph, as it is also in fig. 1, on the same line, and may mislead the observer
into the belief that he is looking at specimens of °"Y"s, This, however, can be readily
corrected by comparing them with true °[7"s, on pl. 6, lines a, b.
The apparent contrast between the two figures above mentioned, on line 8, pl. 5, and
the two corresponding figures of Pl. Jevis, on line a, is hardly perceptible in the
specimens themselves, which are really very large specimens of P/. parvus.
THIRD SERIES.
Planorbis oxystomus,
levis
The shells figured on pl. 1, line m, figs. 10-14, approximate to, but are still readily
separated from those figured on pl. 1, line a, figs. 12, 13. These last are slightly different
from the P/. °73%"s, from Undorf, but figs. 14-16, which are of about the same size,
would not be separated by the most conservative naturalist, if found at Undorf. The
full-grown forms, figs. 12, 15, line a, pl. 1, are larger, and approximate to true PJ. oxystomus,
pl. 3, figs. 8, 9, line /; in fact, they are so nearly identical with these that the young alone
show their affinity to Pl. oes. The young have the shallower umbilicus on the lower
side, and that side of the outer whorl is flatter at the same age than in true P/. oxystomus.
Fig. 12, line a, pl. 1, even shows the peculiar mouth-rim and general outline of
Pl. oxystomus.
There is one noticeable characteristic in the shells of Pl. Steinheimensis, which
may also be cautiously used in separating the varieties just described, from those
of Pl. oxystomus. The striae of growth are not so decisively marked in Steinheimensis.
Shells with striations as prominent or as deeply incised as is usual in PJ. oxystomus are
rare. The surface of the former has a smoother aspect than that of the latter, and
this is almost invariable in the young, while the young of many varieties of P/. oxys-
tomus have very distinct striae. But though rare, such shells do occur, and some of them
are found in the intermediate varieties just described.
Planorbis oxystomus.
Pl. oxystomus Klein, Jahresh. Wurtt, Vol. 2, pl. 1, fig. 27.
Pl. m. oxystomus Hilg., Op. cit., pl. fig. 7.
Pl. m. revertens Hilg., Op. cit., pl. fig. 8.
Pl. m. supremus Hilg., Op. cit., pl. fig. 9.
Carinifex oxystomus Sandb. Op. cit., p. 643, pl. 28, fig. 3.
Variety revertens Hilg. = rn’, pars.
evis
After prolonged comparisons I am unable to find any characteristic by which this vari-
ety in some of its forms can be separated from the narrow umbilicated forms of PJ.
orn’. These, like those figured on line &, fig. 6, and line p, figs. 10-11, pl. 3, have shal-
lower umbilici on the lower side, with whorls less gibbous than is usual, and a mouth
which neither flares nor contracts, and has a very thin inner lip.
OF PLANORBIS AT STEINHEIM. 69
Variety typica.
The second variety, or true norm, which I take to be identical with Hilgendorf’s
figure, has the mouth and part of the last whorl considerably contracted, the lower
umbilicus quite deep, and the lower sides of the whorls gibbous but rounded, figs. 12-18,
line k, and fig. 12, line 8, pl. 3.
The third variety, figs. 2-9, line m, pl. 3, has a mouth similar to the first variety in
some specimens, but in others there is a lip of medium thickness on the inner side.’ This
form is an exaggerated repetition of that of figs. 12-16, line a, pl. 1. The closeness of the
resemblance in form is due to the rotundity of the lower side, and the depth of and
narrowness of the umbilici in both forms.
Planorbis supremus.
Pl. m. supremus Hilg., Op. cit., fig. 9.
First variety.
This begins with a form precisely similar to the preceding, except in the upper umbil-
cus. This deepens by growth, and the first carina and sulcation begin to make their
appearance. The lower side also, is sharper, and the fourth carina stands out quite promi-
nently. The mouth is central. Figs. 6, 10-12, line o, figs. 7-9 same line, are inter-
mediate between these and the last described form of oxystomus on line k, pl. 3.
Second variety.
This differs only in having the mouth bent downwards. The first carina and
suleation become very prominent, and the fourth carina also, as in figs. 1-7, line n,
and 1, 5, line p, pl. 3.
Another form is represented by figs. 8-15, line n, and fig. 1, line o, pl. 3. In these
the upper umbilicus becomes shallower, and in fact almost disappears. This is one of the
nearest approaches to a turretted form observed in this variety, and it is accompanied in
fig. 8, line n, by the development of a distinct sulcation on the upper side. A typical
variety of oxystomus occurs on line a, fig. 14, pl. 3, in formation h, East Pit. This differs
from the series just described in the upper umbilicus. This is shallower, and the inner
whorls are therefore more exposed in the young. Almost without exception, these
have the fourth carma strongly developed, but there are some in which the upper umbilicus
is deeper than usual, and the whorls more cylindrical.
This variety leads by the closest gradation into the stouter form figured on line 3, pl. 3,
figs. 1-6, and line J, figs. 1-3. The next step is shown in figs. 9-10, line b, and 5-8, line e,
in which the lower umbilicus may be either quite wide or very narrow, and the upper side
begins to lose the umbilical depression.
In fig. 13, line b, fig. 1, line ¢, and figs. 4—7, line J, pl. 3, this tendency is consummated
in a truly turretted form.
Variety turrita.
Tn figs. 9-11, line /, pl. 3, the whorls increase with great rapidity below the fourth carina,
and narrow lower umbilicus, assuming a trochiform aspect.
I have one specimen of this last, considerably larger then the one figured, with a form
similar to that of “ elegans” Hilgendorf. It is noticable that although the first and fourth
TIt should be noticed here that the specimen figured on by a very thin or almost imperceptible film, while in Pl.
line a, pl. 1, fig. 12, has a thickened inner lip, also a char- _ oxystomus the opposite is the case, the thin film being excep-
acteristic which is exceedingly rare in Pl. Steinheimensis, tional, and the thick deposit the rule.
in which this portion of the mouth is usually represented
70 HYATT ON THE TERTIARY SPECIES
carinae are distinctly indicated in fig. 1, line ¢, and the first, second, third, and fourth in
some other specimens of the turretted varieties, there are no accompanying indications
of suleations on the upper sides of the whorls. These are usually round, but may become
somewhat flattened, though in no case have I found suleations. The limits here given
for this species correspond quite closely to those given by Sandberger, since
he also included under one name the three principal varieties described by Hilgendorf.
The difference in our views is due to the intermediate forms, which in my opinion bridge
the chasm between this and Pl. Jevis. With regard to the affinity with Carinifex, I have
written elsewhere.
The whole series is given on pl. 6.
Figs. 1-3, line a, are PI. levis, from Undorf. Compare fig. 1, line a, with fig. 1, line dD;
also i 2 with 4, line a, and fig. 3 with 7, linea. Line 0 is the Pl. °"(""", from formations
Zand m, of the Cloister Pits. Thus it can be seen, that it is not necessary even to descend
to formation a of the pits, in order to obtain forms showing the probably direct derivation
of Pl. oxystomus from Pl. levis.
Fig. 3, line b, is important in this connection, because it shows very distinctly that a
perfectly preserved shell of Pl. 2h" exhibits the bright and polished surface and
striae which are common in PJ. levis.
The transition from PI. levis to Pl. oxystomus is also still farther confirmed by the two
young specimens, figs. 4-5, line d; fig. 5, being Pl. levis, from Undorf, and fig. 4, the
young of a typical P/. ox ystomus, from the Cloister Pit.
Pl. oxystomus var. "ys" is shown in figs. 4-7, line a; these are even closer to PJ. levis
than those on line b, which exhibit ihe transitions from °%"""s to true oxystomus,
occupying lines ¢ and d.
I Ape supremus is represented by the figures on line e.
The series is roughly shown by the range of figures numbered 1 in each line, and these
exhibit the general tendency to increase the jong The tendency in each variety to
increase spirality of growth in some shells, is also observable. Thus, in P/. oxystomus, line c,
fig. 6 is quite trochiform, only inferior to fig. 1, line d, a specimen of the same variety.
“This last is apparently quite as turbinate as fig. 1, line e, a specimen of Pl. supremus ;
but in reality it is not of the same species as ans since the umbilicus is more open, and
wider.
The oxystomus-like widening of the whorl in course of growth, fig. 1, line ¢, is not
observable in any of the forms of P1. levis, in the youngest stages of growth, which have
whorls like fig. 3, line a. In Pl. ny, this peculiar widening, occasioning the angularity
of the aperture on the lower side, is more pronounced in the adults, and appears earlier
in the life of the individual. In PJ. oxystomus, line ec, fig. 5, this is still more pro-
nounced, and inherited at a still earlier stage.
In PI. supremus the broad whorl occurs at a very early age, so that the young are
often identical with the typical form of oxystomus; and subsequently the first carination,
or the first and second with the sulcation between them, appears durmg the growth of
individuals.
It is interesting, also, to note that some specimens which have no pronounced carin-
ations or suleation, but are smooth, like oxystomus, have to be classed with this variety on
account of the peculiar shape of the whorls, as in the turbinate form, fig. 1, line e.
OF PLANORBIS AT STEINHEIM. Wl
Another interesting peculiarity is the obliteration of the upper umbilicus in several
turbinate forms, as in fig. 1, line d, and its approximate obliteration in figs. 2 and 6, line
c. It must be understood, however, that even in fig. 1, line d, there is a minute upper
umbilicus in the extremely young shell, as seen at the apex.
A very curious tendency in the whorl to depart from the regular mode of growth is
apparent in figs. 6-9, pl. 3, line p. The whorl, either through a wound as in fig. 8, received
at an earlier age, or through some weakness caused by sickness or unfavorable conditions,
ceases to increase by growth according to the usual proportions. This contraction grad-
ually leads to the distortion of the spiral. Sandberger figures one of this species much
much more remarkable than any here. The mouth strikes off almost as a tangent to the
curvature of the spiral, and extends out to a distance very much beyond that of any of
the specimens seen by me, except perhaps fig. 5, line , pl. 8.
The distorted forms to whose illustration plate 8 is devoted, are largely taken from
Pl. oxystomus, and it will be observed that most of them are var. revertens Hile. — sto,
Figs. 3-4, and perhaps 5, line a, figs. 1, 6, lme 6, are from specimens of typical PZ.
oxystomus, while figs. 2-5 line b, and all of line c, are taken from °°", Some of
these cases are evidently due to wounds, the effect being distinctly marked on the shell.
That the wound in such cases affected the health of the animal is evident, because in other
cases of shells similarly scarred, no distortions are observable in the subsequent building
up of the shell. Figs. 3, line a, 2, line 6, and all on line ¢, are undoubtedly due to such
accidental causes. The other shells show no derangement in their striations or scars.
These distortions may or may not have been due to diseases arising from other causes, but
of one thing we can rest assured, that °”4s7"" was more subject to such distortions than
any other species or form belonging to any of the progressive series. If it is desirable
to test the conclusions drawn from such diseased specimens in chapter 1, it can be
readily done by comparing figs. 1-3, line c, and 4, 5, line b, with the uncoiled forms
of the retrogressive sub-series, or better still by observing the close parallelism of fig. 5,
line 6, with fig. 23, of pl. 9.
Another remarkable result of disease, whether it may be from accident or otherwise, is
a reversion to the peculiar angularity of form conspicuous in some varieties of Pl. levis.
This is not very well shown in the plate on account of the positions of the specimens, but is
partially shown in fig. 2, line b, which was especially intended to exhibit this peculiarity.
It results from a perceptible flattening of the diseased portion of the whorl, as well as from a
general diminution in size. The diseased specimens of Pl. supremus, figured on line d,
are very large, and they are distorted only towards the latter part of the last whorl. The
distortions consist of enlarged striae, and simultaneously the size of the whorl decreases,
occasioning at once a deflection from the regular increment of the spiral, which tends to
become turbinate.!
These phenomena appear to indicate the slow rate of growth consequent upon old age.
This is also shown very well in fig. 1, line », pl. 3, when the same enlarged striations
are seen on the last part of the last whorl, and it is this part alone which is deflected to
1T do not wish to be understood as implying that the ten- equally unquestionable that Pl. trochiformis is a thoroughly
dency to become turbinate is always a diseased or retro- healthy species, as are many other turbinate forms.
gressive characteristic. While this is often the case, it is
72 HYATT ON THE TERTIARY-SPECIES
form the extreme spirality observable in another view of a precisely similar specimen in
fig. 2, by the side of the first described.
FOURTH SERIES.
Planorbis Steinheimensis.
Variety aequimbilicatus.
Pl. m. Steinheimensis var. aequiumbilicatus Hilg., Op. cit., fig. 1.
Forms which are aequiumbilicated are quite rare in the lower formations of the Pits.
One is figured in section on line }, fig. 17, pl. 1, another on line a, fig. 2; almost all others
only approximate to this condition and ought perhaps to be placed with the maequiumbili-
cated forms. They are the true transitions from the latter, but also possess the more
cylindrical or equal-sided and less involute whorls of the aequiumbilicated variety, such
are those figured on plate 1, line a, figs. 1, 3, 4, line ¢, figs. 1, 19, and line m, figs. 1-7.
In the aequiumbilicated variety there are several sub-variations. Those with the mouth
and last whorl or whorls turned upwards, those with these parts central, and those
with these parts turned down as in fig. 7, line m, pl. I.
In the inaequiumbilicated variety there are similar variations in the direction of the last
whorls, but here the downward or spiral tendency is of course predominant. In the
aequiumbilicated variety I did not find a tendency to flatten the upper or lower sides, but
it must be taken into consideration that very few specimens of this variety were found.
In the inaequiumbilicated variety, especially in the sub-variety with the mouth turned
upwards, there is a decided tendency to flatten the upper sides of the whorls and this is
correllated with a corresponding tendency to angulate or produce a ridge-like angularity
in the whorls on the outer side, both above and below and on the inner lower side near
the umbilicus. For convenience sake I have called these ridges the second, third, and
fourth carinae, reserving the designation of first carina for the innermost umbilical ridge
on the upper side, which appears so prominently in P/. discoideus. Forms may be picked
out which show this tendency’ in every way in the sub-variety with the mouth turned
downwards, though the second carina is very rarely seen.
In some specimens only the third carina is seen, and these are remarkably similar to
Pi. levis as figured by Sandberger. In others the fourth carina alone, or third and fourth
carinae with a slight flattening of the lower side occur, and the second and fourth carinae,
but in none did I find the third carina alone.
The forms united under this name have, besides the characteristics above given, the
following: the whorls are more cylindrical, and the increase in the size of the whorls
by growth is less marked than in Steinheimensis proper, and therefore the involution a
trifle less.
Variety Steinheimensis.
Pl. Steinheimensis Hilg., Monatsb. K. Preuss. Akad. Wissensch., Berlin, July 1866,
p- 485, fig. 2.
Pl. Steinheimensis Sandb., Op. cit., p. 644.
1Tt must be observed that I here speak of a hardly per- mouth and lower side of fig. 5, line m, pl. 1.
ceptible angularity such as is shown in the outline of the
OF PLANORBIS AT STEINHEIM. 73
This species or variety may be distinguished from the preceding, principally by the
more rapid increase in the size of the whorls by growth, and the consequently slightly
greater breadth and involution of the last whorls. The young are habitually asymmet-
rical, as in the section fig. 7, lime a, pl. 1. No absolute lme can, however, be drawn
between this and the preceding. The varieties are very numerous, and I cannot pretend
to enumerate all of them. The most significant, if it may be so expressed, are the
following :
1. Those with the mouth turned upwards, or against the spiral; line J, fig. 3, pl. 1.
2. Those with the mouth central ; line a, fig. 9, pl. 1.
3. Those with the mouth turned downwards ; line m, fig. 13, pl. 1.
All three of these varieties may occur with perfectly rotund, smooth whorls, without
the slightest indications of a carina-like angularity or ridge, in any light, or in any
position in which they may be held. There is, however, this observable peculiarity : the
larger number of carimated specimens have the mouth central or turned downwards,
rarely deflected against the spiral.
All three of these principal varieties may also occur with the carinations described in
the preceding form, and in one case a distinct third carina appeared, fig. 1, line n, pl. 1,
which will presently be described in detail.
Specimens with the mouth turned upwards, have a tendency to flatten the upper side
of the whorls. The second carina is very rarely indicated in these, but the third very
often. Sometimes it is alone, but usually it is accompanied by a well defined tendency to
flatten the lower side, and produce the fourth carina also, as in fig. 3, line 5, pl. 1.
The same peculiarities, word for word, may be attributed also to those having the
mouth central. Those figured on line |, figs. 6-10, pl. 1., have only one carina,
the third, indicated as in the mouth of fig. 6, inside of which it is well shown, though
rather too delicate and unpronounced to be shown in others. Figs. 4, 5, have the
third and fourth carinae indicated, especially the specimen shown in fig. 4. Fig. 4,
line n, plate 1, exhibits this peculiarity more markedly than it can usually be shown
by photography.
In this variety also a sulcation makes its appearance as a faint depression on the
upper side, as shown in fig. 2, 5, line 2, pl. 1. The extraordinary form, figured on line n,
pl. 1, fig. 1, not only has the third and fourth carinae, but shows a peculiarly broad, dorsal
aspect, and has indications of the second carina, and a very slight depression or suleation
on the upper side, quite equal to that in No. 5, on the same line, though hidden by the
flare of the mouth. These characteristics are well marked, according to the usual fashion
in other specimens, on the last whorl, for about three-fourths of its length. A con-
striction occurs in this specimen, caused evidently by some accident to the shell, which
was probably the immediate cause of the appearance of these unusual characteristics.
After the repair of this injury, the third carina appears as a regular ridge with a definite
linear depression on either side.
The old age of Steinheimensis is indicated in this and other large specimens by a
slight decrease in the amount of involution of the last quarter of the last whorl, and this
peculiarity is well marked in this shell, so that the distinct carination appears to arise. in
the old age of this form.
74 HYATT ON THE TERTIARY SPECIES
The variety with the mouth turned downwards, in the normal direction of the spiral,
fiz. 11, line m, pl. 1, has the third and fourth carinz well developed. Fig. 13, line h, pl. 1,
exhibits throughout its adult stage a form inseparable from that described above, on
line n, fig. 1, but in old age the whorl is deflected in the normal direction. At the same
time the sulcation appears, and with it the first carina is indicated, and the second
carina becomes quite prominent and much better defined than I have seen it in any other
specimen. The aspect of the whorl, the decrease in its involution, and the enormous
comparative size of the shell show that these exaggerated features are the products of sen-
ility. A tendency to produce the second, third and fourth carinae is also observable in quite
a number of specimens with a decided and symmetrical flattening of the upper, outer, and
lower sides of the whorls, but no sulcations ; this is the case with fig. 16, line 6, pl. 1, which
can only be separated from P/. tenwis, line c, fig. 2, by the absence of any linear sulcation
or depression on the upper side.
Besides the above, there are still other modifications which it is necessary to mention.
These consist of exceptionally flattened forms. All of those previously described are more
or less stout, but there are some which do not partake of this characteristic, such as are
figured on line m, pl. 1, figs. 8-9. All, including the above just described, have rather wide
and open umbilici on the lower side, and cylindrical or flattened whorls, but there are
some forms, with stout whorls, in which this is exchanged for a tendency to narrow the
umbilicus, and these, though difficult to distinguish at first, are soon readily picked out
after a little practice. They are then seen to be distinct, and by comparison with PI. levis,
are recognizable as the intermediate forms of Pl. iy", figs. 14, 16, line a, pl. .1.
Planorbis tenuis.
9
Planorbis tenuis Hilg., Op. cit., fig. 3,
Carinifex tenuis Sand., Op. cit.
tenuis
Variety steinheimensis:
Certain forms which I have included under this name are not distinguishable from certain
forms of Steinheimensis. They nearly all have faint but unquestionable marks of a
suleation on the upper side, but so have some unquestionable specimens of PZ.
Steinheimensis, and that this is an artificial line can be readily shown by the comparison
of such specimens as fig. 16, line }, and fig. 2, line ¢, pl. 1. The latter I have often
referred to Pl. Steinheimensis, when studying that species, because of its very faint
suleations, and also on account of the extreme smoothness of the shell and its close
resemblance to true Steinheimensis forms, especially figs. 3, 4, line a, pl. 2. There is the
same story to be recounted with any characteristic which may be selected.
First sub-variety.
This is represented by a flat shell with the first, third and fourth carimae indicated, but
the second almost absent. They are not distinguishable from such forms as fig. 14, line e,
pl. 1. They are rounded and smooth on the upper side, but flattened as in ¢enwis on the
lower side, with the third and fourth carinae well developed. Some of these have also
almost imperceptible sulcations on the upper side on the last whorl. These differences
disappear in fig. 13, same line, which is really a flattened Steinheimensis form with inter-
OF PLANORBIS AT STEINHEIM. 75
mediate form and characteristics. Fig. 13, lme n, pl. 1 must also be joined to this
sub-variety. The form has not a very close resemblance owing to the deflection of the
mouth, but the third carina is well developed and the shell is intermediate to figs. 14 and
15 same line.
Second sub-variety.
It is not possible to arrange these varieties in a line with reference to Steinheimensis,
and therefore the successive numbering of the sub-varieties means nothing so far as
the genesis and relative rank is concerned. The forms figured on pl. 1, line @, figs. 1-4,
have both the first and second carinae, and the sulcation on the upper side is indicated.
Fig. 16, line e, shows a passage form from these directly to Steinheimensis. The under
sides of the whorls in this variety are rounder than in the first variety, stouter and not so
involute.
Other sub-varieties might be described in the transition forms, such as fig. 1, line 0,
pl. 1. This is an extremely thin shell, more or less flattened on both the upper and
lower sides of the whorls, and with the faintest possible sulcation.
Near the mouth or the upper side, it is evidently very closely allied to such flattened
forms of Steinheimensis as fig. 9, line m, pl. 1, or intermediate between these and the
still more flattened form on line n, fig. 8, which leads into forms figs. 9-12 on the same
line, belonging to the true tenwis group. We must also add to this list fig. 6, le n, pl.
1, which fills the gap between fig. 7 of the tenuis group and Steinheimensis.
The specimens described in the Lower Steinheim Period, as occurring in the Cloister
Ridge rocks show with considerable clearness that PJ. tenwis is really a derivative of Pl.
levis, and that the transition forms here described between this and Pl. Steinheimensis
must be accounted for either as hybrids or as descendants from Cloister Ridge species.
Variety Kraussii.
Planorbis Kraussii Klein, Jahresh. Wiirt., 1847, plate 1, fig. 28.
Pl. multiformis Kraussii Hilgend., Monast. K. Preu. Akad. d. Wissensch., Berlin,
July 1866, pl., fig. 12.
Pl. Kraussii Sand., Conchyl. d. Vorwelt, Supp., p. 646.
This species at first sight appears to be separable from PJ. Steinheimensis on the one
side and Pl. tenuis on the other. The close and thorough examination of the shells,
however, gradually obliterates all distinctions. It can, therefore, if one chooses, be
properly considered one of the varieties of Pl. s4i((eM 8 nsis+
If we compare the full grown shell with the young of Pl. tenuis, line f, fig. 1-7, pl. 2,
we find that the young of certain forms are with difficulty separated from Pl. Kraussii,
e. g., fig. 4, line f, and fig. 3, line d, pl. 2. The young of the more immature of the
tenuis forms are like the specimens of Pl. Kraussii.
This would answer very well for all the forms with flattened upper sides, figs. 1-8, line
d, and figs. 13-16, same line, pl. 2, in which a triquetrus-like outline is attained by the
flattening of both the upper and lower sides. This explanation, however, hardly applies
to such forms as figs. 9-12, and 17, on the same line. These are almost purely Steim-
heimensis-like, so much like the latter that if they had been found in the same formation,
I should have called them by that name.
76 HYATT ON THE TERTIARY SPECIES
The umbilicus on the lower side is narrow, and it will be observed that the young are
quite stout in some specimens, as in figs. 11, 12, line d, pl. 2. Since the above was
written, I have succeeded in finding in my collection true Pl. iin is) in formation a, of
the Old Pit, line f, figs. 1-3, pl. 1.
The prominence of the third carination in Pl. Araussii is precisely what was
previously observed in Pl. Steinheimensis, and besides this the adults of many
develop the second carina and become flattened externally on the last whorl, as in
the young of Pl. tenuis. Occasionally, also, as in fig. 2, line d, pl. 2, a faint sulcation
becomes visible on the upper side.
It is possible that the specimens figured on pl. 2, from the higher formations of
the Pits, are the survivors of the forms of formation a, and perhaps may be considered as
somewhat dwarfed. Their resemblance to the specimen from formation /, figured on pl.
2, line g, fig. 12, as Pl. sicinhelmensiss IS apparent at a glance.
The specimens of Araussii figured on line d, pl. 2, figs. 15-16 are similar to some of
the more compressed young of P/. tenuis, like those of figs. 7, 15, line n, pl. 1, and figs.
1-2, line f, pl. 7, and are identical with the more immature young, and some of the
full grown shells of P/. tenuis of the Cloister Ridge rocks. Sandberger appears to
have been unable to separate this form in the Pits from P/. tenuis, but there is no diffi-
culty in doing this until the young of the tenvis forms are studied. The adults are quite
distinct. Hilgendorf’s opinion that this species is a direct derivative from Pl. Steinheim-
ensis is amply sustained by the material I have examined, but whether this ought
also to be considered intermediate between Steinheimensis and his Pl. pseudotenuis is more
doubtful. This last I have had no means of studying, except through two specimens sent
me by Hilgendorf. These are very minute, delicate, thin-shelled specimens, with the third
carina only developed, which forms a sharp ridge on the lower side and outer edge of the
whorl. The shell has the aspect of the young of PJ. tenwis, but I have unfortunately not
the time now for a re-examination in order to test this question. If his material
enables him to trace a close series of transmutations this can be established, but in the
absence of this exact proof, I should certainly at once class it as the young of a variety
of Pl. tenuis, traceable to such forms of Pl. gpith is ncig aS are figured on pl. 1, line e,
fig. 14.
There is not a single specimen of PI. pseudotenuis figured on my plates, and this
shows the extreme rarity of the shell, a fact I was not aware of until the receipt of
Dr. Hilgendorf’s type specimens. If this series is finally established by Dr. Hilgendorf,
then another distinct series of a retrograde character will have to be added to those des-
cribed in these pages. The specimens of P/. m. Araussii received from him are of the
true «A7avssii.. type, and show none of the tenuis-like characteristics here described as
Steinheimensis
varieties of this species. Fig. 9, line f, pl. 2, is identical with these.
Variety tenuis.
The sub-varieties appear to be almost wholly derived from forms of the preceding de-
cribed varieties, either of Steinheimensis OY greiftrsnsis. Thus the first sub-variety which
shows a tendency to become turbinate, such as that figured on line ¢, pl. 1, figs. 2-12,
appears to be connected directly with the Steinheimensis forms, similar to fig. 16, line 6,
previously described.
OF PLANORBIS AT STEINHEIM. 7(76
The majority of this variety, however, have the square form of the whorl with the
sulcations and carinz well developed. The mouth in these may be deflected against the
spiral slightly, as in fig. 16, line ¢, pl. 1, and perfectly flat on the upper side, as in figs. 15,
17, 18, on same line. They are inseparable from the preceding variety, though in many
forms they tend to grow in a sub-turretted form, fig. 8, line d, pl. 1, and line e, figs. 14,
15, and line 9, fig. 1-3, fig. 6, and line f, pl. 7.
These last lead without break into forms such as figs. 4-7, line 0, which have
an extraordinary development of the first carina with a sub-turretted shell, or with a flat
shell, as in figs. 2-10, line e, pl. 1. Then a sub-variety, probably connected with the last,
in which both the first and fourth carine are very prominent, as in figs. 11-13, line e,
plod.
The forms on line 2, pl. 1, figs. 9-12, are much compressed, with sides flattened and
convergent outwardly, showing a whorl, which connects them with the extremely
flattened form, fig. 8, same line ; and also fig. 1, of line 6, on same plate.
If one examines this last mentioned compressed form, and fig. 8, line n, there is in -
both a slight want of symmetry, which consists in the greater prominence of the zone
which would be occupied by the third carina, if it were present.
This is perhaps one of the most curious of the genetic series traced out directly from
specimens, which are identical with Steinheimensis, on account of the almost imperceptible
changes of form by which it is accomplished, and by reason of the extreme variation of
some of the varieties.
Planorbis discoideus.
Variety: Ae".
This transition form, when that term is used in its most conservative sense, as applicable
to shells which exhibit characteristics which make it impossible to decide whether they
belong to discoideus or to tenuis, is not found in the Pit Deposits. It is, however,
found in the Cloister Ridge rocks and has been previously described.
These forms entirely fill the gap, since they meet the only objection which can
be urged against the intermediate position of the Pit forms; they have young which
“ precisely resemble the adult of P/. tenwis.’ There is indeed so close an approximation
to true transition forms that I have more than once had to alter the nomenclature of this
series. Thus the gap which exists between the form of Pl. tenwis figured on line e, fig. 1,
pl. 1, and those of P/. discoideus figured on line f, figs. 4, 17, pl. 1, is so slight that hardly
any naturalist would hesitate to unite the former with the latter. Nevertheless the young
of the form figured on line f cannot be considered as similar to the adult of the form
figured on line e, since it is stouter.’
For a precisely similar reason I have also been obliged to separate the compressed
forms of discoideus figured on line h, figs. 10-12, and line p. figs. 1-2, pl. 1, from Pl.
tenuis, though among these it is possible that farther search would detect Pl. “codes,
1 This would generally be considered as of no value, but it adopted is restricted to the most conservative basis of anti-
must be remembered that the basis of the reasoning here evolutionism,
78 HYATT ON THE TERTIARY SPECIES
Variety discoideus.
The sulcatus form is simply a compressed variety of PJ. discoideus with a remarkably
square mouth and whorl as in figs. 7-14, line g, line h, and 8-10, line p, pl. 1. The square-
ness and angularity of the under side is well depicted in figs. 2-5, and 7-9, line h. ‘There
is a prevalence of these forms in formation a, but they are accompanied by true disco-
ideus, and every attempt to separate the two has been attended by great confusion in my
own mind.
The typical forms of PJ. discoideus involutus Hilg. are shown in figs. 10-17, line f, and
1-6, line g._ I have applied this name to still more involute and more easily distinguish-
able forms, the extremes of this variety.
Figs. 4-7, line g, show a still stouter form in which carinations and sulcations are more
marked, but the mouth at an early age has not the angularity of P/. discoideus ; figs.
14--17, line f, the carinations are still more distinct, and the mouth is angular in the
young. Figs. 10-13, line f, show a trifle stouter and more trochiform shell with per-
fectly developed carinae, and sulcations both above and below.
After this, the difficulty in following the series consists only in settling the affinities of
the adults of the numerous varieties; the young remain quite similar in form, though
differing greatly in being more or less carimated or sulcated. They accord in this respect
usually with the adults, as for example, fig. 7-14, lme f, pl. 1, and the various series of lines
d,e, f, pl. 38. In this way it may be shown that the species really most closely related
to Pl. tenuis are the somewhat flattened but trochiform and unconnected forms like fig. 7,
line 7, pl. 1, and not the deeply suleated and carinated forms like sulcatus, however
flat they may be.
The first variation is that cited above, in which the upper sides of the whorls have the
first carina well developed, the second rounded off, with the third and fourth on the lower
side prominent. This leads into a number of allied forms, such as figs. 9, 10, line e,
pl. 1, which become very turretted, and on the other hand into exceedingly flat forms
like fig. 4, same line, in which all four carinae are well developed, but the sulcations not
well marked. Figs. 15-18, pl. 2, line f, shows a similar series of modifications, and these
are evidently the young of the trochiformis-like varieties, on line n, figs. 3, 4, and line m,
figs. 5, 4, and which lead in “7chorms, same line, figs. 1, 2.
A series might also be formed with the variety elatior Sand. as a type, fig. 16, line i,
pl. 2. This also, it seems to me, is not sufficiently described when included with the
discoideus series, and placed as Sandberger places it among the transition forms from
true discoideus, to his variety intermedius, sub-variety communis, figs. 1-2, line m.
Though quite closely allied to this series, there is a certain outline to the mouth, and
an aspect of the whorl, which is reproduced in trochiformis, figs. 6, 7, line r, pl. 1, and a
series could be doubtless formed connecting the two.
Going back again we may take up almost any other line of characteristics, and follow
them out to a similar result. A.
Let us take, for instance, the true swlcatus form, already studied in part. In this we
find the flattened tenuis-like form, line h, pl. 1, figs. 10-12, and line p, figs. 1, 2, becoming
stouter, 5-10, same line. On line , figs. 2, 3, we can see them more trochiform, and on
OF PLANORBIS AT STEINHEIM. 79
line p, fig. 12, so excessively altered, that it is difficult to recognize the same variety.
But observe closely the shape of the immer whorl in this and in fig. 13, then it will
be seen that these are flat on the lower side, and in all respects similar in shape to fig. 3,
line 7.
Still another form of this variety is shown on pl. 2, line b, fig. 1-4, in which the
turretted forms are not so, and may be traced directly back to the thinner forms
mentioned above, through fig. 6, line i, pl. 1.
Within the limits of these series, there are a great many varieties which appear to be
simply individual, or else to obtain only in a limited number of individuals, and to have
no special meaning. Such is the appearance of an anomalous carination, along the centre
of the whorl, as in fig. 5, line &, pl. 1. The existence of this appears to me unac-
countable, as a normal characteristic, and it is not perpetuated. The peculiar mode
of growth shown in figs. 17-19, line e, and fig. 18, line d, pl. 1, in which the reg-
ularity of the spiral is abandoned, seems to be another characteristic equally unparal-
leled.
Besides these anomalies, there are numerous individual characteristics appearing with
exceedingly limited range, which can be better accounted for. These are largely mere
excessive developments of certain parts, as certain carinations, or suppression of others.
Very often these have a meaning, which is very important. They are often really char-
acteristic of a series, as the extraordinary development of the first carina in a large num-
ber of the sulcatus series. Again they may be of more limited application, but even more
significant and instructive.
If we observe any series of square forms, such as 7-14, line g, pl. 1, there will be
some with the upper and lower sides of nearly equal breadth, and others in which the
lower side is narrower, never broader. In such extremely square forms as no. 19, line f,
and fig. 11-14, line 1, pl. 2, this is quite as well marked as in other series, fig. 10-11, line e,
pl. 2, being the young of such forms, showing the the narrowness, as does also fig. 13,
line 7. Sometimes this tendency is accompanied by a tendency to suppress the carinations
on the lower side. When carried to its extreme, as in the series figs. 1-6, line
c, this produces a whorl, which is rounded and smooth on the lower side, as in
fig. 6. If we now compare these forms with line &, fig. 6,! pl. 1, we shall see that
this is one of those transitions to PI. trochiformis, which are distinguished by having
smooth lower sides.
In the same way, where the carinae are not atrophied, it will be observed that the
narrowing of the lower side always takes place in the transition forms to Pl. trochiformis
in proportion as they become more turretted.
I do not mean to trace out a series on this character, because no one can examine
a series without seeing that the narrowing of the lower side and the sometimes correlative
atrophy of the ribs is not characteristic of series, but is an individual variation, gaining in
importance and represented in a larger number of individuals, as we approach the
turretted forms. See also in this respect the transition forms, figs. 1-4, line 7, pl. 2. We
can say also, with approximate accuracy, that in any series there is a constant tendency
1The Pl. elegans of Hilgendorf.
80 HYATT ON THE TERTIARY SPECIES
to produce flattened forms with prominently developed carinations, but that this is
counteracted by a still stronger tendency to produce turretted forms, with the carinations
and sulcation of the lower side more or less depressed or atrophied, and that side
correspondingly more or less rounded. It will be seen at once that these tendencies
produce in one direction the squarest whorls and mouths, and in the other the
triangular or trochiform shape of the whorl and mouth.
The specimen figured on line o, fig. 15, pl. 1, is the young of discoideus, with
a very close resemblance to the var. rotundatus, Hilg., differing only in the greater
angularity of the lower side. It is the young of a Pl. “orherms variety, and not of the true
Pl. trochiformis. There is one remark of importance to be made in this connection, that
this young form is intermediate between the flattest of the rotundatus-like young,
next to be described, and the young of the immature forms of discoideus, figured
below on line J, figs. 7-9.
Var. rotundatus, as described and figured by Hilgendorf, is equivalent to the young
of several forms of Pl. trochiformis.
Sandberger alludes to it as a full-grown variety of his intermedius, distinguished
by its smoothness, but in this sense it is not identical with Hilgendorf’s figure, which
relates to the young alone, as may be seen in the following remarks.
If we compare the young of PI. discoideus displayed on pl. S, line 7, figs. 1-9, and line
h, figs. 1-17, with the tenwis forms on line f, fig. 1-12, we shall first ascertain one very
important fact, which has been stated before: that the young of P/. discoideus differ
in the smooth forms from the young of PJ. tenwis, in being stouter, even from a
very early period, though in all other respects they are identical. The diseoideus series
is finished by the older specimens, figs. 13-17, line /.
The continuity is unbroken on line h, and fig. 18 makes an easy transition with
its more or less rounded whorls, from discoideus to the forms of rotundatus.
These do not entirely abort the third carina which is still to be seen in fig. 23, line h.
They do, however, inherit a tendency to become trochiform, at a very early age,
and with this a tendency to round the lower side of the whorl, and suppress the
third and fourth carine. If now we attempt to follow up the characteristics, we are
led into such forms as figs. 4, 5, 6, line p, pl. 2, with a linear third carination, which are
undoubtedly young of P/. trochiformis, as figured on line gq, fig. 18.
The Pl. trochiformis, fig. 8, line n, is tracable in all its stages down to the undoubted
rotundatus forms, fig. 12, same line, and figs. 15-18, line o. Figs. 9-10, line 0, are
identical with PJ. discoideus, and at first seem really to belong to that species. They
bear nearly the same relation to that species as fig. 6, line ¢, differing only in having the
narrow umbilicus and peculiar sharpness of the lower whorls, which show that they are
the young of the same varieties of trochiformis as rotundatus.
As a separate designation for a variety, the name rotundatus therefore has no
existence, unless accepted as noted by Sandberger, but even then it is open to this
difficulty, that very dissimilar varieties of Pl. trochiformis may be devoid of carinae.
They may be as distinct as the transition form, fig. 4, line r, pl. 2, and the Pl.
trochiformis, fig. 9, line k, pl. 1.
This study of the young forms, however, leads to the conclusion that we must
OF PLANORBIS AT STEINHEIM. Sil
look to the true discoideus line for the origin of the major portion of the trochiform
varieties. That this is the case, will be established by looking at any large collection
of specimens."
In the majority of the varieties of Pl. trochiformis, the upper sides of the whorls
of the young are exposed at the apex of the shell, and these are smooth, not suleated
and have two carinae generally blunt, as in the true discoideus.
Others, however, equal to the variety pyrguliformis Sand., Pl. trochif. turbinatus
Hilg., are more prominently carinated, as on plate 2, figs. 9-12, line s, and have flattened
apices; and the young, as seen externally at the apex, seem to be identical with
the young of such forms as are figured on line n, figs. 1-2, plate 2, which are flattened
forms of discoideus, distinguishable from the true sulcatus variation by the absence of a
deep sulcation on the upper side.
Occasionally, however, the apices of some true trochiform varieties are similar to those
of the young of other varieties than discoidews. Thus, in the case previously pointed out,
the young of the forms on line 7, figs. 6—7, plate 2, indicates a descent from the variety
elatior, fig. 16, line 7, same plate, and to this might be added other similar forms like
fig. 8, also on line 7, plate 2, and also fig. 8, line k, plate 1. These appear to be identical
with Klein’s V. multiformis, var. trochiformis, and in part with Sandberger’s multiformis,
var. trochiformis communis.
Fig. 3, line o, plate 2, which is the young of the PI. trochiformis, fig. 5, line 7, has the
flattened apex and some of the characteristics of elegans Hilg., but also resembles the
discoideus involutus, and the discoideus rotundatus forms. From this, which often has
prominent carinations, we are able to pass into Pl. trochiformis turbinatus Hilg., line s,
figs. 9-12. These forms have the flattened and sharply carinated young like those of the
less turbinate elegans Hilg., as shown on line a, fig. 15, plate 3, with a broken young speci-
men of Pl. trochiformis (fig. 16) for companion. Compare then again with selected forms
of Pl. discoideus in which the young are remarkably flattened and sharply carinated above
(as fig. 13, line ¢, plate 2, figs. 1-3), line &, figs. 12-14, line g, plate 1, and similar figures
of discoideus on plate 3. The paucity of intermediate forms in this series is very marked,
and caused Dr. Hilgendorf, as in the case of rotundatus, to invert the natural order of the
series. He derives both of these forms from P1/. trochiformis, whereas in tracing them out
as in the case of revertens it will, I think, be found that the young, which always indi-
cate the true line of descent, show closer affinity with discoidean than with trochiform
varieties. In this connection see figs. 6, 7, 8, line &, plate 1 (fig. 6 being very like Pl.
elegans, though evidently intermediate between discoideus and trochiformis) ; also 5-10,
line 6, plate 2, and then compare fig. 15, line a, plate 3, with flat discoideus above. The
resemblance of the young to these full grown forms will at once become apparent. So
far as my experience goes the only retrogressions from trochiformis, which I have been
able to find, are like those figured on plate 8, which are diseased forms showing, as prev-
iously described, a tendency to depart from the spiral as in fig. 10, line 7, and fig. 11, line
8, plate 2.
The conclusion from these observations seem to be that Pl. trochiformis arises from the
almost simultaneous changes of a number of closely allied varieties. These are mostly
?
1 The name of the species, Planorbis trochiformis, which ought to have been at the head of these remarks, has been
accidentally omitted on p. 78, above third paragraph.
82 HYATT ON THE TERTIARY SPECIES
discoideus. The extremely flat and square whorled varieties with their prominent
carinae and sulcations being, however, more rarely represented by true trochiform
descendants, than those forms of discoideus in which these parts are less prominent, and
the form from the beginning of the series more asymmetrical. These in the trochiform
descendants appear in the young as the rotundatus-like form, by which the greater part of
all the trochiform specimens are characterized. Thus the direct line of descent from Pl.
Steinheimensis is shown to be prepotent, or to paves: a greater number of descendants
than any other form.
It is useless to attempt to reduce these proportions to numbers, but it may be generally
stated that in any formation the trochiform varieties with rotundatus-like young greatly
outnumber all others; so much so that those with a distinct flattened form of the apex
have to be sought for, and become rarer and rarer until the extreme is reached in
sulcatus-like young of elegans.
The value of this statement has been tested by the revision of boxes of Pl. trochiformis
from nearly all the formations, the results of the sifting of several samples from each for-
mation in the New Pit, besides a mixed box containing thousands, and a similar review
of material in the Old Pit and East Pit. There is, however, one notable distinction which
is represented also in a measure in the plates. The forms with rotundatus-like young
occur much more abundantly in the East Pit than in the Old or New Pit, where the forms
with discoideus-like young, the P/. trochiformis, as figured by Hilgendorf, appear to be
equally, if not more abundant in some formations.
It will, however, be noted even in this connection that all of the rotundatus-like young
as well as the larger forms with rotundatus-like young figured on plate 2, came from the
Old Pit. The cases of distorted spirals also are much more frequent among the specimens
with flattened discoidean apices than in those with normally formed or rotundatus-like
apices. This fact correllates with another of equal importance, namely, that in some
case a true elatior-like whorl may be caused by a wound. Thus in one specimen in my
collection, of a Pl. trochiformis with a typical rotundatus-like young, very smooth and
rounded on the apex, a wound has interrupted the deposition of the shell when nearly
half grown. The new whorl, when growth was resumed, was not only begun considerably
inside of the spiral projected by the earlier whorls, thus narrowing the spiral consid-
erably, but a first carimation was le oe and a form of the whorl similar to that of
elatior instead of such a form as in plate 2, line s, fig. 6, which would have been produced
in due time if no wound had taken place.
These facts and others mentioned previously, are very curious and appear to indicate
less strength on the part of the prominently carinated forms to resist external or internal
causes of disease, producing a lessened size of the whorl and distortions of the spiral,
which are only very rarely found in those forms having the rotundatus-like young. Thus
the descendants in the direct line of descent from Steinheimensis are not only more
numerous, but healthier than those of other varieties. The largest specimens are those of
the transition forms from the flat variety of discoideus to Pl. trochiformis, such as are
figured on line m, plate 2, and others with the rotundatus-like young.
The descendants of the swlcatws and elatior varieties are generally smaller, especially
when distorted, but when perfectly normal may be quite up to the average size of
OF PLANORBIS AT STEINHEIM. 8
(30)
the direct line, except in the case of those of Pl. trochiformis, which have the discoidean
young and are descended from those just referred to, as figured on line m, pl. 2. Thus the
forms in the direct line of descent have the advantage in point of size, as well as in the
other characteristics mentioned.
Besides these numerous varieties, there are still others which cannot strictly perhaps
be attributed to disease or any definable cause. One of these is precisely similar to fig. 4,
line 7, plate 2, in the rotundatus-like characteristics of the apex, but is extremely attenuated
or tapering. The whorls, however, are perfectly regular, and the external aspect of the
spiral smooth and more regular even than in fig. 4. This seems to be the variety
vermetiformis Sand.
Another variation, which may be the trochiformis communis Sand., is that represented
by the peculiar stout-whorled spiral of figs. 4-9, line &; figs. 2-5 and 6-8, line s, on
plate 2, have also rotundatus-like young.
The distorted specimens, line r, figs. 9-10, plate 2, also deserve special attention. These
have rotundatus-like young, but the last whorl, as shown in fig. 10, has an excessively
thick inner lip, and strikes off from the regular lme of increment. In both cases, the
coarseness and the crumpled look of the aberrant part of the whorl indicates a diseased
condition to which doubtless the distortion must be attributed.
There are also extraordinary forms frequently found at the apex, showing that the
young, as in fig. 1, line s, plate 2, must have presented a remarkable spiral during the
two whorls, owing to the sharp projection of the second carina due to the contraction of
the spiral. This was undoubtedly, I think, a pathological condition, because if it had
been continued the adult would have been much distorted, perhaps even unrolled, as in
Pl. denudatus Hilg. It will be perceived that these results agree only in part with those
of Hilgendorf. That author traces PI. trochiformis through discoideus and sulcatus in
linear succession, to Pl. tenuis, then to Pl. Steinheimensis, and lastly to Pl. aequiumbil-
icatus.
The changes or variations from sulcatus and discoideus varieties into trochiformis were
probably simultaneous or nearly so. At any rate, though this cannot be proved, there is
a strong antecedent probability in its favor, owing to the sudden appearance of these
forms in such great numbers, the precise parallelism of the different series, the frequency
of hybrids and a parallelism so exact that it can only be explained by supposing that it
was produced by the intercrossing of all the varieties.
This conclusion I find after a re-examination of the material to be substantially correct
so far as the evidence as found in the Pits is concerned. °
Throughout the preceding observations any reader can see by referring to the figures
from what Pit and formation the different shells came, but in the following remarks no
attention is paid to the formation, that not being considered important.
There are upon plate 7, six specimens of PI. levis from Undorf; three of them are
easily picked out, having been mounted on white paper, but can any reader distinguish
the other three from the “Pit forms of PJ. S“irfeimensis’ which are associated with them, before
reading the following descriptions.
This series is arranged entirely with the view of showing the zoological affinities of the
series, independent e their geological relations.
84 HYATT ON THE TERTIARY SPECIES
The shells are more magnified than in the first three plates, and carefully selected
to show- their affinities.
Line a, fig. 1, Pl. levis, from Undorf, compares with figs. 5, 5, Pl. Steinheimensis.
The latter have peculiarly deep umbilici on the upper side, which is a characteristic of
Pl. levis, and are otherwise just like fig. 1; the forms could not be separated if found
together. Fig. 2 shows the typical form of PJ. levis, from Undorf. Fig. 6, also, from
Undorf, exhibits the angular whorl of PJ. levis, and compares equally closely with fig. 7,
PI. Steinheimensis and fig. 8, a young specimen of the latter. Compare also fig. 2, line b,
from the Pits, with P/. levis, Undorf, fig. 5; fig. 1, line b, PJ. Steinheimensis, with fig. 4,
Pl. levis, Undorf; figs. 5, 7, 8, line 6, from the Pits, with figures on the line below, and
fig. 6, from Undorf. It is observable, however, that while in PJ. levis a decided angu-
larity is found in the outer edge of the mouth-rim, owing to the prominence of the third
carination, this is not the case with Steinheimensis, as a rule. It is a rare exception in
the last named, and none of the normal specimens examined by me, even though they
had this third carination as strongly shown as in fig. 6, line a, plate 7, possessed an
angulated aperture.
Fig. 3, line c, shows a remarkably fine specimen of Pl. Steinheimensis, which has the
cylindrical form of the whorls common in var. aequiumbilicatus Hilg., but is not aequium-
bilicated. It is decidedly asymmetrical, and shows the tendency to form a turbinate
whorl, which is so common in all the forms. Line ¢ exhibits forms of Steinheimensis
intermediate with regard to the stoutness of the whorl, etc., between those in the three
lower lines, and line d. These specimens also show, as do those below, that in some
specimens the same variations occur also in the young. Line e, figs. 1-4, are more or
less symmetrical forms, all normal, healthy, full-grown, but not outgrown, or old speci-
mens, as in fig. 13, line h, pl. 1. Fig. 7, line d, is Pl. seinheimensis, from the rogks of the
Upper Tier of the Cloister Ridge ; figs. 5-7, line e, are Pl. Sicitti teas fromthe: Pits:
Figs. 1-3, line f, complete the transition to Pl. tenuis, figs. 4-5.
The asymetrical forms of tenwis are shown in fig. 6-7, same line, and on line g,
all of which are tenwis forms. Fig. 6, le g, is the stoutest true fenuis form which
I have been able to find in my collection, and it will be seen that a hair’s breadth
more and a shade more of prominence to the third carima would make it impossible
to say whether it was tenwis or discoideus.
The remaining specimens on this plate exhibit the ordinary forms of discoideus, those
having rotundatus young. Figs. 3-6, line 7, are true rotundatus Hilg., and figs. 1, 2,
same line, the transitions from P/. discoideus to these.
It remains now only to trace the law of acceleration in this series. If we select any
of the transition forms, Pl. giff7snsis, and examine the younger stages, we should find,
as in fig. 1, line 6, fig. 13, line c, pl. 1, that the only traceable resemblance to PI. tenuis,
the sulcation, occurs on the last part of the last whorl, or during the full grown adult
condition only; that such shells as figs. 14-15, line c, exhibit the same at an earlier age,
accompanied by carinae, and finally fig. 16, at a still earlier age; so that it is difficult to
say whether the young is like Pl. Steinheimensis, except at a very early stage.
Finally in many specimens of Pl. tenwis it becomes difficult to recognize the form of
Pl. Steinheimensis at all on account of the early period at which the flattened whorl,
OF PLANORBIS AT STEINHEIM. 85
carina, sulcation and narrow umbilicus make their appearance, figs. 5-10, line e, pl. 1.
The square form of the whorl as inherited by PJ. discoideus passes through a similar
series of descendants, in which it becomes more pronounced and stouter in the young by
degrees, until the young themselves from being similar to tenwis become stout whorled and
discoidean, as well as the adults, fig. 16, line ), pl. 2, fig. 14, line g, pl. 1. The turbinated
form of the shell is wholly an adult characteristic in many specimens of discoideus, figs.
2-3, line h, pl. 1, fig. 12, line p, and may be traced with all its accompanying characteristics
through several series to Pl. trochiformis, where the different series culminate in shells
which have young that are so trochiform-like at an early age, that only the very youngest
periods retain any resemblance to discoideus.
In some of these it is easy also by breaking down the shell to see one of the common
results of this mode of inheritance by acceleration. Namely, the Steinheimensis form is
almost, and in some few cases entirely, unrecognizable. It is skipped by the development,
and so also is the tenwis form, the discoideus form alone surviving in the young.!
With regard to the proper identification of these forms, and those described by Klein in
Jahresh. d. Vereins. fiir vaterland. Naturk. in Wiirtt., 1847, p. 60, fig. 7, line A, pl. 1,
seems to me identical with Klein’s V., multiformis var. planorbiformis, pl. 2, fig. 14.
Fig. 7, line k, pl. 1, seems to correspond with Klein’s V. multiformis var. intermedia,
pl. 2, fig. 15. Fig. 8, line 7, pl. 2, is almost exactly identical except in size with Klein’s
figure of V. multiformis var. trochiformis, pl. 2, fig. 16. Fig. 7, line 7, pl. 2, is equally
close to Klein’s figure of V. multiformis var. turbiniformis, pl. 2, fig. 17. Fig. 11, line o,
pl. 2, is apparently identical in every respect with Klein’s V. multiformis var. rotundata,
pl. 2..fie. 18:
Feeling that it would be futile to attempt a revision of the mames of the different
varieties, I do not attempt here or elsewhere, to do anything more than assist those who
may feel disposed to take upon themselves this thankless task, with such observations as I
may have made. ;
Sandberger’s diagnosis, in which he divides this group into three, is the best which has
been devised, with the exception of rotwndatus, which, as shown, is only a name for a
young specimen, and is therefore placed in brackets.
First variety? A, planorbiformis; containing sub-variety a, sulcatus, sub-variety )b,
discoideus, sub-variety (, elatior.
Second variety B, intermedius; containing sub-variety a, communis, sub-variety },
eleguns, [sub-variety ec, rotundatus |.
Third variety C, trochiformis; containing sub-variety a, communis, sub-variety },
pyrguliformis, sub-variety c, vermetiformis.
1This phenomenon was what led to the adoption of the 2 Tn place of “ variety,” I should have written group, and
name “acceleration.” In place of ‘‘sub-variety” the word species in most cases,
but this is merely a difference in taste.
HYATT ON THE TERTIARY SPECIES
V. Lists or Fossits By SECTIONS.
OxLp Prt, Section 5-6.
Formation “a.”
Stratum “a,” 1, and a.
This, the lowest observed stratum, was explored in two places in the Old Pit
by means of holes sunk through the fish layers, ce, to the dark Jura clay beneath.
At the lowest points fossils were carefully collected, which are figured on plate 1,
lines a-k, and k-J. Lines a-k include the varieties obtained during the first visit
to Steinheim, in the first hole sunk to the Jura-clay level, and also those collected
during the second visit in a new hole at a short distance to the northward and still within
the limits of the Pit. Lines k-l, include a selection of the varieties obtained in the
lowest stratum during the reopening and reéxamination of the first hole dug and
described above, in order to establish the fact that Planorbis trochiformis occurred in
the Old Pit associated at the lowest level with Pl. Steinheimensis, var. aequiumbilicatus.
The descriptions and plates show that the following species, with many intermediate
forms, were obtained from the lowest part of the deposit, in contact with the Jura or dark-
brown clay.
Pl. Steinheimensis, var. aequi- Pl. steinneimensis: WEA, apes Metered
umbilicatus. Pil. tenuis. Pi. eee similar tom wane
Pl. Steinheimensis. Pl. discoideus. elegans Hilg.
Pil. omystomns Pl. discoideus, var. involu- Pl. trochiformis.
Piece tus.
Stratum a2, Old Pit.
This consisted, like the first stratum, of a brownish colored, coarse sand, but was devoid
of clay, and contained also stones or small boulders. The following species were found,
and are figured on plate 1, lines m-p:
Pl. Steinheimensis var. ae- Pl. ns. Pl. discoideus.
quiumbilicatus. 1 BAR Ststabeunoaties Pi. Prelit
Pl. Steinheimensis. Pil. tenuis.
Stratum a3, Old Pit.
This consisted of sand of a similar coarse quality and color to that of a2, but contained
no large stones. The fossils were as follows, and are figured on plate 2, line a, and line },
figs. 1-4.
Pl. Steinheimensis, var. ae- Pl. Steinheimensis. Pi. tenuis.
quiumbilicatus. PUR ei Pl. discoideus.
Summary of Formation “ a.”
The geological characteristics of the lowest observed stratum in each of the two holes
sunk to the level of the bottom clay differed. In the first hole, at the base of Section 6,
it was almost entirely shell-sand, but in the second hole, at the base of Section 5, the sand
OF PLANORBIS AT STEINHEIM. Sif
was largely mixed with clay. The strata a2 and a3, in Section 5, both contain the
typical forms of stratum al, but not quite so fully represented in a2 as in a1, or in a3,
as in a2. They seem, therefore, to be diminishing at the end of this period, in this
part of the lake. The deposits of a2 are distinct from al; they consist of masses and
granules which resemble in character the adjacent porous limestone, or the older rocks
described previously as forming the mass of the Cloister-ridge. Without the contained fos-
sils it would not have been possible to have synchronized the two formations, namely, the
single stratum at the base of Section 6, and the three strata at the base of Section 5. The
fossils, however, include a similar association of forms. Pl. Steinheimensis, Pl. tenuis and
Pl. discoideus are abundant, and Pl. trochiformis is comparatively rare.
Formation “b,” Old Pit.
This contains no fossils, but was situated immediately under Formation ec, in both
of the holes dug in the Old Pit. It contained shell-sand, and a considerable proportion
of clay, in Section 6, and was almost wholly of clay in Section 5.
Formation “ec,” Old Pit.
This consisted, in the first hole dug, of 250 mm. of clay, in layers, and 250 mm.
of limestone layers, all more or less filled with fish remains ; in Section 5, however, in the
second hole, the limestone occurred in layers regularly divided thoughout by layers
of clay. No shells were found associated with the fish fossils. The general distribution
of this Formation and its peculiar fossils makes it very valuable as a fixed level,
from which to estimate the relationship of other formations.
Formation “d,” Old Pit.
This consisted, in the locality first explored in the Old Pit, of clay and sand mixed,
300 mm. in thickness, and in the second place, Section 5, of sand exclusively, the
thickness being approximately 270 mm. The fossils were scarce and difficult to
gather, because this formation formed the floor of the Pit in both sections.
The following fossils were obtained :
Pl. discoideus. Pl. trochiformis. Pl. minutus.
They are figured on pl. 2, line }, figs. 5-16.
Formation “e,’” Old Pit.
This consists of shell-sand 1 m. in thickness, and abundance of fossils, especially
of the smaller forms. The color differs somewhat from this ordinary shell sand, and
it appears of darker or brown color, as if made up of the debris of darker limestones
on the hill.
The following fossils were obtained :
Pl. discoideus. TEU Ose) Pl costatus, |
Pl. trochiformis. Pl. denudatus. Ph
Pl. minutus. Pl. costatus. Pl. tenuis, var. Kraussii.
They are figured pl. 2, lines c, d, and e, figs. 1-17.
88 HYATT ON THE TERTIARY SPECIES
Formation “f,” Old Pit.
This consisted of the usual quality of white shell-sand, and contained the following
fossils :
Pl. tenuis. Pl. denudatus. Pl. triquetrus.
Pl. discoideus. jE}, See
Pl Ae Pl. costatus.
Plate 2, line e, figs. 18-27, line f, line g, figs. 1-16.
Formation “g,’” Old Pit.
This is composed of the common white friable shell-sand, but contained no fossils.
Formation “h,” Old Pit.
This consisted of the ordinary white, friable shell-sand, and contained the following
fossils :
Pl. discoideus. Pl. discoideus (var. elatior—PI. triquetrus.
Pl. discoideus (rotundatus- Sand).
like young). Pl. trochiformis.
Plate 2, line g, figs. 17-23, line h-1.
Formation “i,” Old Pit.
This consisted, where examined, mostly of the debris of broken shells, but contained
numerous fossils in good preservation, but very few species.
Pl. discoideus. Die caneeil=
Plate 2, line m. .
Formation “k,” Old Pit.
This consists of the common quality of white, friable shell-sand, and contained
the following fossils :
Pi. tenuis. Pl. trochiformis.
Pl. discoideus. Pl. trochiformis (rotundatus-young ).
Plate 2, lines n, 0, and p, figs. 1-13.
Formation “1,” Old Pit.
This consisted of white shell-sand, and contained :
PI. steinheimensis- Pl. trochiformis. JA fe prettle
Pl. tenuis. Pl. trochiformis (var. pyrgu- Pl. denudatus.
Pl. discoideus. liformis Sand).
TEL Areal bine Pl. minutus. Pl. costatus.
Plate 2, line p, figs. 14-20, and lines q, 7, s.
Formation “x,” Old Pit.
This has the admixture of broken shells and perfect specimens which is very often
OF PLANORBIS AT STEINHEIM. 89
found in other formations, and I cannot see why it should be necessarily considered as
entirely composed of transported materials, as described by Hilgendorf.
Pl. discoideus, Pl. trochiformis, and one well-preserved specimen of PI. oxystomus
were obtained. ¢
Formation “1.” (Uncertain.)
?
The absence of the upper or clayey formations from “m” upwards, in the Old
Pit, had attracted my attention from the first.
In order to ascertain whether this had been due to denudation, I ordered a hole
to be dug on the top of the hill at some distance from the Old Pit, and a little
to the north of a line connecting the Old Pit and the East Pit. This was sunk
about eight feet; the first two feet or so through a bed of rubble, containing
large specimens of Lymnaea; the remaining five feet, through a bed corresponding
more to Formation 7 of the Old Pit, than to any other. Pl. trochiformis of the same
varieties as those figured on plate 2, limes 7, s, were very abundant, but distinguished
by the almost invariable absence of the carination on the lower side.
Pl. costatus and minutus were also quite abundant, especially the latter; in both
also the specimens were large, and the ribs in the latter very coarse and prominent, as in
the variety major Hilgend. Var. Avraussii was also found, but of rare occurrence.
The bed could not be said to be continuous with / in the Old Pit, although in all
probability it was synchronous, and bed x was entirely absent, its place being occupied by
the rubble, which occurs frequently just under the surface soil on the hill, and appears
to be composed of drift from the Cloister-ridge rocks.
This result was interesting, in so far as it confirmed the conclusions attained
elsewhere, that the beds often differ so essentially, although but a short distance,
removed from each other, that it is not possible to determine whether they are
exactly synchronous. One fact is worthy of special remark. The rubble had also
occurred at the very highest point known, the top of the Cloister Pit, Section 1, but the
oxystomus layers were absent, and the rubble on the north side of the hill rested directly
on the trochiformis beds, which agree in their fossils with formation / of the Old Pit
_ more than with the higher beds x; which, however, have similar fossils.
New Pir, Section 8, SoutH SIDE.
This section was made on the south side of the New Pit, where the formation differed
somewhat from those on the east side, as shown in Section 7. It would have been
idle to repeat the figures of the usual PJ. discoideus and trochiformis shells of the
Old Pit, and other species which have been already so fully given. These occurred
abundantly in some of the strata, and more rarely in others, until in Formation m, they
gave way to the usual fauna of the oxystomus zone. I have accordingly only figured
those forms which were not previously found at what have been considered as
corresponding levels in the Old Pit, or which seemed to require special consideration.
90 HYATT ON THE TERTIARY SPECIES
Formation “f,’ New Pit, South side.
,
This consisted of the usual shell-sand, but many of the specimens were incrusted with
lime, and had the aspect of transported shells. P/. erescens makes its appearance, but is
rare. 4
Pl. tenuis. Pl. discoideus. Pl. trochiformis.
Pl. 3, line a, figs. 1-5.
Formation “g,’ New Pit, South side.
This also consists of shell-sand and fossils, but not so abundant as in /f.
Pl. discoideus and Pl. trochiformis.
Formation “h,” New Pit, South side.
This consists of shell-sand, and contains :—
Pl. parvus. Pl. oxystomus. Pl. discoideus.
Pl. erescens. Pl. minutus. Pl. trochiformis.
Pl. 3, line a, figs. 4-14.
Formation “i,” New Pit, South side.
Pl. parvus. Pl. oxystomus. Pl. trochiformis var elegans,
Pl. crescens. Pl. trochiformis. (Very rare).
The absence of Pl. discoideus is a fact worthy of remark.
Pl. 3, line a, figs. 15-23, line 0, figs. 1-11.
Formation “k,” New Pit, South side.
This consists of shell-sand and contains :—
Pl. oxystomus. Pl. costatus var. major. Pl. trochiform is.
Pl. crescens. Pl. discoideus.
Pl. 3, line 8, figs. 12-17.
Formation “1,” New Pit, South side.
This consists of shell-sand, and contains : —
Pl. oxystomus. Pl. minutus. Pl. trochiformis.
Pl. discoideus was not found.
Pl. 3, line ¢, figs. 1-4.
Formation “m,” New Pit, South side.
This consists almost wholly of clay, and contains :— P/. oxystomus, Pl. crescens, but no
Pl. discoideus; and Pl. trochiformis becomes exceedingly rare.
Plate 3, line ¢, figs. 5-16.
Formation “x,” New Pit, South side. .
This consisted of the usual shell-sand and broken shells with PJ. trochiformis and Pl.
discoideus, well preserved and very abundant. :
OF PLANORBIS AT STEINHEIM. 91
Formation “p,”’ New Pit.
This consisted of alternate thin layers of clay and limestone, containing remains of PJ.
oxystomus, Pl. crescens, and PI. trochiformis, the last very abundant in the lower part,
and very rare in the upper part of the formation.
New Pit, Section 7, East SIDE.
The species of the formations in this section did not seem to require figuring. The
beds are remarkably distinct in aspect from those of the more regular layers on the south
side of the same pit, as shown in section 8.
Formation “g,’’ New Pit, East side.
This formation was made up of alternate layers of limestone and shell-sand, containing
the usual Pl. trochiformis and discoideus, but no other forms were present, or represented
in my collection.
Formation “h,” New Pit, East side.
This narrow streak of shell-sand was perhaps one of the most remarkable deposits which
I
it was my good fortune to find. It was an almost solid bed of shells, consisting largely of
the transition form, P/. “ecerms’ Quite a number of the Pl. discoideus and Pl.
trochiformis were also present in all varieties and some very remarkable forms, produced
by distortion of the spiral, arising from wounds.
Formation “i,” New Pit, East side.
The lower part of this formation presented a very close resemblance to Formation “ 7,”
of the East Pit, Section 3. It contained lumps of limestone, in a fine sandy clay, and it
is not improbable that these show the mode of formation of the numerous dividing layers
of limestone, since they are of all degrees of hardness and exhibit frequently no definite
outlines when in place.
Pl. parvus was found, but not very abundant. PJ. crescens was more abundant than
the preceding. PI. oxystomus was quite rare. Pl. trochiformis was abundant, but not
so frequent as in the upper part. Var. Kraussii was also found, and Pl. minutus, but not
abundantly.
Formation “k,’ New Pit, East side.
This consists of a thin layer of shell-sand between two layers of clay, and was evidently
of very limited extent. The clay on either side contained no fossils.
Pi. crygioms — var. revertens, and the turbinate and flat forms were very abundant.
Pl. crescens was also abundant. PI. trochiformis and Pl. oxystomus were the most char-
acteristic and numerous of all others.
Formation “1,” New Pit, East side.
This consisted of shell-sand. The usual list of shells were found, Pl. trochiformis
being perhaps the most abundant form.
Pl. minutus. Pl. crescens. Pil. tenuis var. Kraussii.
Pl. oxystomus. Pl. trochiformis.
92 . HYATT ON THE TERTIARY SPECIES
Formation ‘‘m,’ New Pit, East side.
The clay bed in this section was by no means so thick as in Section 8, though it
probably only corresponds to the lower part of Formation ““m”’ in Section 8. The col-
lections made from this bed are particularly favorable to the views taken by Hilgendorf
of the genesis of Pl. oxystomus from Pl. trochiformis.
They appear in my collection labelled as transition forms, and would without other
evidence be considered sufficient to prove his position. A most perfect series can be
built up between PI. trochiformis and the extreme discoidal variety of var. revertens,
which I think would be considered sufficient even by the most sceptical person, if no
other evidence was forthcoming.
The confusion arises from the number and variety of the Pl. trochiformis with
rotundatus young, and the close resemblances of these young forms to certain varieties of
Pl.oxystomus, which were also present in considerable numbers.
Pl. crescens was abundant and of large size.
Formation “x2,” New Pit, East side.
This consisted of the ordinary materials of the shell-sand fillmg a lenticular pocket,
which disappeared on following it a short distance towards Section 8.
Formation “n, 0,’ New Pit, East side.
This was a bed of clay of the usual fine texture, and containing specimens of Pl.
oxystomus and Pl. crescens, but no other species.
Formation “x3,” New Pit, East side.
This consisted of the usual materials, and was apparently continuous with x3, in Section
8, and just above it laid the layers of limestone and shell-sand of
Formation “p,’’ New Pit, East side.
This bed is directly traceable into formation p, of Section 8, and contained the same
species of fossils.
LirtLe Pit, Section 4.
Formation “a,” Little Pit.
This was situated considerably to the northward of the Old Pit, on the first road to the
eastward. It was only a small excavation, but I employed a laborer to open it to the
depth of about ten feet. The weather, however, was very unfavorable for such work,
and the digging difficult on account of the thickness and frequency of the limestone. I
therefore abandoned it before reaching the Jura clay, but succeeded in ascertaining the
fact that the layers increase in thickness to the northward.
Above the two clay layers respectively marked 1 and 2 of Formation a, occurred a
thick deposit of drift material, often very coarse, and exactly resembling the porous
limestone drift of Section 5, formation a2, but much thicker. Here shells were more
abundant, and I obtained a few specimens of PJ. tenuis, and one uncoiled specimen of
OF PLANORBIS AT STEINHEIM. 93
Pl. denudatus. This last was very carefully collected, and there is no doubt in my own
mind, that it came from this formation, but though I sought diligently for specimens, I
could not find another. Above this we find Formations b, ¢ and d, running together,
and consisting of layers of clay containing the fish remains.
‘Formation “e,” Little Pit.
The lower part of this formation consisted of the same brown porous limestone drift as
formation e¢ in the Old Pit, and the fossils of the lower part also agreed very closely
with those of that formation. The upper part contained a large admixture of the ordi-
nary friable shell-sand, and a somewhat distinct fauna.
Lower Part.
Pl. minutus, Pl. costatus, and Pl. denudatus were particularly abundant, with Pl. dis-
coideus.
Upper Part.
Pl. discoideus, and Pl. trochiformis are abundant, and with them numerous specimens of
the form of the young, known as rotundatus.
Formation ‘“f,” Little Pit.
The prevailing fossils here, as elsewhere, were Pl. trochiformis and Pl. discoideus.
East Pir, Section 3.
This section was taken on the south side of the Pit, and continued as far down
as possible by a hole dug to the fish-layers of formation e. Any attempt to penetrate
this, though made here in two places, was frustrated by the influx of water.
Formation “c,” East Pit.
This consisted of clay in layers containing the usual fish fossils, but no shells.
Formation “d, e,’’ East Pit.
This is very thick, and consists of layers of shell-sand of greater or less density, but
otherwise not distinguishable. They have the same lumpy character and brown color of
the corresponding formations in the Old Pit. Pl. discoideus was abundant.
Pl. minutus and costatus were also abundant. Pl. triquetrus was also found. A
broken specimen or two of oxystomus was found, a fact which was carefully ascertained.
Formation “f,” East Pit.
This formation is naturally divided into three parts just in the southwest corner of the
sandpit, where one hole was dug, by streaks of clay interpolated between the three thicker
layers of shell-sand. P/. discoideus is particularly fine in the lowest, but generally not
very large. The usual spiral transition forms are not very abundant, the large majority
being of the deeply channelled sulcatus form. A few also are smooth, but none of them
94 HYATT ON THE TERTIARY SPECIES
approximate very closely to trochiformis. Pl. sulcatus had the same peculiarities in the
middle bed. In the upper bed, however, nearly all the forms, without approximating
very closely to Pl. trochiformis, showed the trochiform tendency in being more or less
spiral, either throughout life, or only in the adult; only a very few of the flat sulcatus
form were found in this part. P/. minutus occurred but very rarely in the lower part,
while in the middle part it was much more numerous, and also associated with P/. costatus.
In the upper part they were even more numerous, and associated with P/. costatus. One
specimen had the tunnelled form, but the whorls were not open. Var. Araussii follows
nearly the same rule, being scarce in the first, quite numerous in the second, and still more
abundant in the third part.
One broken specimen of Pl. oxystomus was found in the middle part in which only a
portion of the centre, and an outer whorl is left unbroken.
Formation “ g,” East Pit.
This consists of clay, but has two pockets or layers of shells. Pl. discoideus was very
abundant, with numerous specimens of the rotundatus young of Pl. trochiformis in all
varieties, Pl. minutus and costatus, and Pl. parvus, and rarely Pl. crescens.
Formation “h,” East Pit.
This consists of shell-sand. PP. discoideus, and Pl. trochiformis, with all the interme-
diate forms were very abundant. P/. minutus and Pl. costatus were also very abundant,
and uncoiled forms of both species. Var. Araussii and Pl. crescens also occur, but not so
frequently.
Formation “i,” East Pit.
This consists in the lower part of two strata of clay, with three of shell-sand, and in
the upper part of one layer of shell-sand between two of limestone. The shells were
not abundant, and much thinner than in the preceding formations. PJ. trochiformis most
frequently occurred, but not in good preservation. Pl. minutus, Pl. costatus, and
Pl. crescens were also found.
Pl. trochiformis.
Plate 3, lines e-k, and line J, figs. 1-14.
Formation “m,” Cloister Pit.
This is like “J,” lithologically, and contains:— Pl. °7"* var. revertens, Pl. oxys-
tomus, Pl. supremus var. turrita, Pl. discoideus, Pl. trochiformis.
Plate 3, line J, figs. 15-17, and lines m-—p.
Formation “n, o,’’ Cloister Pit.
This consisted of sand layers with limestone partings like formation m, but contained
no fossils. Above this occurred a bed of rubble consisting of disintegrated rock, appar-
ently derived from the Cloister-ridge rocks and resembling m character that previously
encountered on the north slope of the hill, but containing no fossils.
OF PLANORBIS AT STEINHEIM. 97
VI. Lists or Sprecres By ForMATIONS.
Lower Prriop, or PERIOD oF Rock Deposits.
Weuselhalder Rocks.
Pl. solidus. P1. platystomus. Pl. Hilgendorfi.
Pl. declivis. Pl. exustus. PI. levis.
Pl. Larteti or conulus.
Coarse Limestone.
ay, czysiomus Pl. oxystomus. SEY, (EMG
oxrystomus.
Oxystomus Limestone,
Brag. Cousions Pl. oxystomus. Pl oe
Pl. parvus.
Valley Rock.
Mele creinncimensia. Pl. discoideus.
Cloister-Ridge Rocks.
(Lower Tier.)
tenuis or i liscoideus
Pi. ictiiciaiensta: Jap tenuis. Pl. seeeratie
Pl. discoideus.
(Upper Tier.)
ae oy somes TV rae Pl. tenuis, turreted variety.
Pl. discoideus. Pl. tenuis. pals ees
Uprer Prriop, or Pertop oF Pit Deposits.
Formation a.
Pl. Steinheimensis var. I El fs Sehr ibs ee Pi. Mechiformis var. like elegans
aequiumbilicatus. Pl. tenuis. Hilg. .
Pl. Steinheimensis. Pl. discoideus. Pl. trochiformis.
HY Sonu sions Pl. discoideus var. involutus. Pl. denudatus.
JE lls pe Merateeaeee Jd a es aes Pi. tenuis, turreted variety.
Pl. minutus.
Formation d.
Pl. discoideus. Pl. minutus. Pl. triquetrus.
Pl. trochiformis. Pl. costatus. Pl. oxystomus.
98 HYATT ON THE TERTIARY
Pl. discoideus.
Pl. trochiformis.
Pl. minutus.
Pl denudatus
minutus.
Pi. ant
evis.
Pil. discoideus.
iT latus
Tee cnaniee
Pl. denudatus.
SEY costatus
minutus.
Pl. Steinheimensis.
Pl. discoideus.
Pl. trochiformis.
Pl. Steinheimensis.
Pl. discoideus.
Formation e.
Pl. denudatus.
PI. costatus.
Pi. costatus
minutus.
Pi triquetrus
minutus.
Formation f.
Pl. costatus.
Pl. triquetrus.
Pl. tenuis.
Pl. crescens.
Formation g.
SPECIES
Pl. trochiformis (rotundatus-
like young).
Pl. triquetrus.
Pl. oxystomus.
Pl. trochiformis.
Pl. Kraussii.
Pl. minutus.
Pl. oxystomus.
Pl. pseudotenuis.
Pl. trochiformis (rotundatus- Pl. costatus.
like young).
Pl. minutus.
Formation h.
Pl. parvus.
Pl. crescens.
Pl. trochiformis var. pyrgqu- Pl. oxystomus.
liformis.
Pl. discoideus (rotundatus- Pl. “pckivennis
like young).
Pil. discoideus var. elatior.
Pl. trochiformis.
Pl. Steinheimensis.
Pl. discoideus.
p) te is
Je d. Stevimermensie
Pi trochiformis
* discoideus.
Pl. parvus.
Pi. tenuis.
Pl. discoideus.
Pl. trochiformis.
discoideus.
Pl. triquetrus.
Pl. parvus.
Pl. erescens.
Formation i.
Pl. crescens.
Pl. oxystomus.
Pl. trochiformis.
Pl. Kraussit.
Formation k.
Pl. oxystomus.
Pl. crescens.
Pl. costatus var. major.
Pl. trochiformis (rotundatus- Pl. oxystomus var. rever-
like young.)
Pl. Steinheimensis.
tens.
PT eee
heimensis.
Pl. minutus.
Pl. costatus.
Pl. denudatus.
Pl. costatus var. distortus.
Pl. Kraussii.
Pl. minutus.
Pi oxystomus
levis.
Pl. costatus.
Pl. tenuis.
Pl. minutus.
Pl. costatus.
Pl. costatus var. distortus.
Pl. tenuis.
Pl. pseudotenuis.
OF PLANORBIS AT STEINHEIM. 99
Formation 1.
PA. seeinkeimensis. Pl. minutus. Pl. costatus.
Pi. tenuis. JEN deans JAX, ory somue var. revertens.
Pl. discoideus. Pl. denudatus. Pl. oxystomus var. turritus.
Ls ects Pl. oxystomus. Pl. supremus.
Pl. trochiformis. Pl. Kraussii. Pl. pseudotenuis.
Pl. trochiformis var. pyrquli- Pl. crescens. Wd ie Rae
forms. Pl. parvus. Pl. Steinheimensis.
t Us
ley cous
Formation x.
Pl. oxystomus. Pl. discoideus. Pl. trochiformis.
Formation m.
Pl. Steinheimensis. Pl. trochiformis (votundatus- Pl. costatus.
LAI ag like young. ) Pl. costatus var. major.
Pl. oxystomus. Pi, orysiomus var. revertens. Pl. supremus.
Pl. crescens. Pl. tenuis. Pl. supremus var. turritus.
Pl. trochiformis. Pl. minutus.
Formation n.
Pl. crescens. Pl. trochiformis. Pl. costatus var. major.
Pl. oxystomus. PI, ervgoms var. revertens.
Formation o.
Pl. crescens. Pl. trochiformis. Pl. tens * Var. revertens.
Pl. oxystomus. Pl. costatus var. major.
Formation x bis.
Pl. discoideus. Pl. trochiformis. Pl. oxystomus.
Formation p.
Pl. oxystomus. Pl. crescens. Pl. trochiformis.
100 HYATT ON THE TERTIARY SPECIES
APPENDIX I.
On page 27 I have written, that I wondered no authors except Prof. Cope and myself
had made the law of acceleration an object of investigation.
This statement is not wholly correct, since I find in a work just received, “ Studien itiber
die Stammes-geschichte der Ammoniten,” by Leopold Wiirtenberger (Leipzig, Ernest
Gunther, 1880, 8vo., pp. 110, with four Stammtafeln), that the author has used this
law of heredity, though evidently misunderstanding its fundamental character, as one of
the laws of heredity, and explaining it as the result of the action of the law of natural
selection. It becomes interesting, also, to observe how closely his statements and facts
agree with those previously made in my publications; for example, on page 28, he writes
as follows: “ Wenn niimlich eine Veriinderung welche fiir die ganze Gruppe eine wesent-
liche Bedeutung erlanet, zum erstenmal auftritt, so ist dieselbe nur auf einem Theil des
letzten Umganges angedeutet. Gegen jungere Ablagerungen hin tritt diese Veriinderung
immer deutlicher hervor und schreitet dann, dem spiralen Verlaufe der Schale folgend,
nach und nach immer weiter gegen das Centrum der Ammonitenscheibe fort; d. h. sie
ergreift allmithlich immer mehr auch die inneren Windungen, je héher man die betref-
fende Form in jungere Schichten hinauf verfolet.”
“When, for instance, a variation which attains a substantial importance for the whole
group, makes its appearance for the first time, it is exhibited only upon a part of the last
(outer) whorl. This variation comes out ever more distinctly as the strata are younger,
and advances, following the spiral trend of the shell, step by step, towards the centre of
the spiral: that is to say, they (the characteristics) strike gradually more and more
towards the inner whorls, as one follows the forms from the older into the younger (later
formed) beds.”
This statement is an exact transcript of what I have repeatedly written in various
essays upon the Ammonites, and also gives the fundamental facts upon which all my inves-
tigations have been based for fourteen years.
Compare the above, for example, with the following sentences from p. 203, of my
memoir in Vol. Ist of the Memoirs of Bost. Soc. Nat. Hist., read Feb. 21, 1866, and pub-
lished in 1867.
“The young of higher species are thus constantly accelerating their development, and
reducing to a more and more embryonic condition, (or entirely passing over) the stages
of growth corresponding to the adult periods of pre-existing or lower species.”
“In other words, there is an unceasing concentration of the adult characteristics of lower
species in the young (or inner whorls) of higher species, and a consequent displacement
of other embryonic features (in these inner whorls), which had themselves, also, previously
belonged to the adult periods of still lower forms.”
With reference to the characters of the Ammonitoid shells, on p. 94, he says: “ dass die
Veriinderungen an den Sculpturen, sowie an den tibrigen Charakteren der Ammoniten-
schalen sich zuerst auf dem letzten (iiussern) Umgange derselben bemerklich machen, und
dass dann eine solche Veriinderung bei den nachfolgenden Generationen sich nach und
nach immer weiter gegen den Anfang des spiralen Gehiiuses fortschiebt, bis sie den gréss-
ten Theil der Windungen beherrscht.”’
OF PLANORBIS AT STEINHEIM. 101
“That the variations of the sculpture, as also those of the other characteristics of the
shells of Ammonites first make themselves visible upon the last (outer) volution, then
such a variation advances in the following generations step by step always nearer to the
beginning of the spiral, until it covers the greater part of the (inner) whorls.”
The difference between our statements! is that Wiirtenberger speaks of the inner
whorls and I use the word “ young” in place of the word “ inner whorls,” because the
inner whorls of all shells represent the first formed or younger stages of growth.
I also in the first quotation use a phrase “entirely passing over’? which has been
included in parentheses because it refers to the skipping of characteristics in development,
a phase of the law of quicker inheritance, or acceleration in heredity, which Herr Wiirten-
berger also mentions, but which is not included in his first statement. I might also refer
if I chose to similar quotations from Prof. EK. D. Cope of Philadelphia, showing that he,
simultaneously with me, discovered the same law though giving it a somewhat different
application than either Wiirtenberger or myself.
Now we have only to understand, that the outer whorls are built during the full grown
or adult period, and the inner by the animal during the younger stages, in order to per-
ceive that this is a statement that the Ammonites inherited the adult characteristics of
their ancestral forms at earlier and earlier periods in successive generations.
This is the law of acceleration, and it is specifically given by Herr Wiirtenberger in
various places in his book, notably on p. 98, where he attributes the preservation of any
characteristic differences which may arise, to natural selection, and says that they may be
inherited earlier or later in the life of dividual descendants.
Then as the earlier inheritance of these characteristics would be of advantage to the
individual in the struggle for existence, Herr Wiirtenberger thinks that successive gener-
ations would tend to inherit them at earlier and earlier periods. The objections to this
seemingly simple and straightforward explanation are numerous. Animals do not inherit
the new characteristics which their parents may have acquired at later periods than those
in which they appeared in the parent, but at the same time, or earlier in the immediate
descendants, and eventually always earlier in the more remote descendants. I have as yet
seen no evidence that the descendants inherit a characteristic at a later period than that
at which it first appeared in an adult ancestor.
Even if this assumption should be proven it would still remain necessary to establish the
nature of the characteristics inherited, whether they really were advantageous or not.
Notiing can exceed the confidence with which the strict Darwinist assumes, without
any appeal to observation, that all characteristics which are inherited are necessarily
advantageous. Exactly the reverse is very often true. The disadvantageous, the
advantageous, the parallelisms and the differences, are all subject to the law of acceler-
1JIn order to see how closely we have followed the same
path it is also necessary to compare the statements on pages
27 and 28 of this Memoir, and in the following essays: “ De-
velopment of the shells of Ammonoids and Nautiloids.”
Proc. Bost. Soc. Nat. History, Vol. 14, p. 398. ‘ This is
the law of acceleration, or the perpetual reduction of adult
characteristics to earlier and earlier periods in the growth of
the later existing individuals, until finally many character-
istics altogether disappear.” ‘“ Cephalopods of the Mus-
eum: Embryology.’”’ Bull. Mus. Comp. Zool., Cambridge,
Mass., Vol. 3, No. 5, p. 70-71. ‘¢ Evolution of the Arietidae.”
Proc. Bost. Soc. Nat. Hist., Vol. 17, p. 238. ‘ Genetic
relations of Stephanoceras,’”? in same, Vol. 18, p. 379, last
paragraph, p. 382.
102 HYATT ON THE TERTIARY SPECIES
ation described above, whereas the law of natural selection can only act when there is a
choice of characteristics, and where those characteristics are differences, variations newly
introduced, not yet fixed in the organization, and unquestionably advantageous. Animals
or plants must act and react upon each other, and then and not before then, can we have
any law like that of natural selection, and it is exceedingly questionable whether natural
selection applies at either extreme of life. Man is certainly by his own acts capable of
modifying and perhaps controlling the result of the battle of life, and it is very probable
that the action and reaction of the first beginnings of life in the past history of the
world, was no more than could be accounted for by the known action of physical forces
upon the simplest of organisms.
Natural selection certainly has nothing to do in the embryo, nor yet in the extreme old
age of the individual. If, as I have constantly tried to prove, the individual life is a true
exponent of the life of the group to which it belongs, the embryo to the progressive past,
the adult to the present, and the old age to the degraded or retrogressive future of an
exhausted or diseased type, then it may with approximate certainty be assumed that
natural selection acts at neither of the extremes of the variation of a given group, neither
upon the phenomena of their first appearance, nor upon those indicating their decline and
leading to their disappearance.
Natural selection, in fact, is simply one of the transient conditions of the physical sur-
roundings, having no value as a cause of origin of characteristics, but simply acting on
certain categories of these characteristics, after they have originated, and helping to take
them out of the list of transient characteristics and fix them in the organization. Once
fixed they are inherited, and, unless as described above, interfered with by a reversal of
the ordinary physical conditions, by extreme parasitism, etc., they become a part of the
younger stages of growth in accordance with the law of acceleration, and are either finally
skipped, crowded out altogether, or become embryonic and part of the type form.
Herr Wiirtenberger has, also, observed this peculiarity of the skipping or omission of
accelerated characteristics, which originally caused the use of the name acceleration as
applicable to these phenomena, and used also in this respect words which are almost iden-
tical with those which I have employed in describing the same phenomena in previous
essays.
“Denn es ist leicht einzusehen, dass die fortgesetzte Wirkung der friihzeitigeren Verer-
bung der fortwiihrend im Lebensalter auftretenden Abinderungen dahin fiihren muss, die
friiheren Entwickelungsstadien niiher zusammenzudriingen, zu verwischen oder zum Theil
ausfallen zu lassen, wenn die der eigentlichen Entwickelung der Organismen nicht tiber
alle Massen hinaus verliingert werden soll.”
“For it is easy to perceive, that the prolonged working of the earlier transmission * of
the changes which are perpetually appearing in older life” must lead the earlier stages
of development® to shorten up, to disappear wholly or partly, or else the individual devel-
opment of the organism would be prolonged beyond all just measure.”
1JIn successive individuals, forms or species. 8 Of descendant individuals, forms or species.
Fy Pp e)
2 Of the more ancient or ancestral individuals or species.
OF PLANORBIS AT STEINHEIM. 103
I have endeavored in this memoir to explain these accelerations or skippings from which
the theory took its name, on pages 28, 29, 30, and the importance of this law in explaining
the partial or total obliteration of type characteristics in the embryos of some parasites, as
well as in the ordinary cases which occur in every group of animals.
Herr Wiirtenberger deals with the Planulatus, Amaltheus, and Pettos groups, on all of
which I have published papers, and since he has quoted Waagen, who cites my work, and
since Herr Wiirtenberger also knew of my work on the “ Embryology of the Cephalopods,” *
as is shown by his allusion to my name at the foot of page 35, it would be very interesting
to know how he escaped noticing that I had discovered and formulated the law which he
justly considers an important law of heredity, and to the exposition of which he had
devoted his book.
In a note to page 35 he gives Branco the credit of having done in 1879 the work
which I had done in 1872 in my treatise on the Embryology of the Cephalopods, and
casually mentions that I had already done something of the same sort on the Goniatites,
a small sub-division of the Cephalopods.
Here, unfortunately, he did one of his own countrymen an injustice, since this was one of
the parts of my work which was not original, it having been copied almost bodily out of
Guido Sandberger’s previous researches. I can, however, congratulate Herr Wiirtenberger
upon his recognition by full quotations of that much abused naturalist, Haeckel, who, not-
withstanding his great offences against the conservatism of reasoning in science, has given
a better analysis than any other living naturalist of the laws governing the relations of
animals to their surroundings and to each other. His critics, whose name is legion, do
him a monstrous injustice in allowing themselves to dwell wholly upon the errors and the
faults they can find, forgetting themselves, and blinding others to the substantial services
to science of this justly celebrated naturalist. My own indebtedness to him and to his
works is very great, as must be that of all those who strive to get some idea of funda-
mental laws.
Though differing from him on essential points, still in his Generelle Morphologie der
Organismen he has given substantially the same view of the action of heredity in pre-
serving the type, and of the relations of growth to heredity and of heredity to the modi-
fications produced by the direct action of physical influences, as has been set forth in this
memoir. ‘The differences lie principally in the estimate of the importance of the law of
natural selection, which he considers as of wider application than I think is at all justified
by any proofs which have so far been produced.
APPENDIX II.
On page 14, in paragraph next to the last, and again on page 31 in the first paragraph,
I allude to the general tendency to spiral mode of growth in all shells.
I had in this memoir no opportunity to enlarge on this subject, and when the remarks
were written had not yet published any observations on this interesting subject. Since then,
however, in an evening lecture given before the American Association for the Advance-
ment of Science during the meeting of 1880, at Boston, I gave some account of the facts
as they stand throughout the Mollusca, and attempted to prove, so far as the absence of
experiment would permit, the hypothesis that the spiral forms of all shells, whether Ceph-
te
104 HYATT ON THE TERTIARY SPECIES
alopods, Gasteropods, or Lamellibranchs, and their peculiar shapes, can be accounted for by
the different ways in which the attraction of gravitation would act upon the excreting bor-
der of the mantle through the weight of the shell itself, or by the natural growth of this
part when freed from the weight of the shell.
Thus the oyster, pecten, ete., show during the adult stages distortions and a peculiar
horizontal growth which can only be accounted for by the support they receive, either
from permanent attachment, or by resting on one valve. ‘
The evidence here seems to show that the shell must grow in the direction resulting
from the action of the two forces, the movement and growth of the tissues and the oppos-
ing force of gravitation. The extraordinary shapes and combinations of asymmetry and
symmetry in different parts of the same animal as exhibited in the mollusca, all seem to be
resolved when we can account for the influence of gravitation upon a fixed or moving
organism, allowing for the reactions occasioned by growth and heredity.
APPENDIX III.
The remarks on p. 76, with regard to Pl. pseudotenuis, are misleading. Since this page
was printed I have undertaken with the help of two assistants to revise and re-arrange my
collection. This has led to the finding of several specimens of Pl. pseudotenuis. ‘These
show that PJ. pseudotenuis is a form which is genetically connected with Pl. minutus. It
has all the characteristics and peculiar aspect of that species in the young, and is never so
stout at any period as P/. Araussii. The latter has a shell which resembles it in color and
general aspect but not in its proportions, and is also approximate to P/. pseudotenuis, very
closely in some specimens which have a prominent thick carination. These are very closely
similar to Pl. pseudotenuis, and I think led Dr. Hilgendorf to trace pseudotenuis into
Kraussii instead of into Pl. minutus with which it seems to be connected. There have
also been found two specimens of PJ. pseudotenuis with a suleation on the upper side
of the whorl, which confirms this conclusion; as any one will see, even from an exam-
ination of Hilgendorf’s own figure, that such a suleation would render even the extreme
form of Pl. pseudotenuis very similar to Pl. triquetrus, which Hilgendorf himself con-
siders a member of the minutus series. Var. Avaussii p. 89, fifth paragraph, is P/. pseu-
dotenuis. One specimen of Pl. pseudotenuis has been found in Formation f, New Pit,
one in k, /, East Pit, one in w same Pit, and one in /, Old Pit.
This revision of the collection has also led to the discovery of several diseased forms of
Pl. trochiformis, which are very interesting. They are dwarfed. The spiral is partly
unwound and then closed up again in course of growth, but is even then much contracted.
In fact a very slight increase in the characteristic tendency of the growth, as shown by
our specimen would make a whorl larger, but not very unlike P/. denudatus im general
appearance.
APPENDIX IV.
In revising the collection my assistants have also succeeded in finding in Formation de,
referred to on page 49, line 18, as containing only “two broken specimens of P/. oxysto-
mus’ and also on p..93, line 22, two well preserved young specimens and one nearly full
grown.
OF PLANORBIS AT STEINHEIM.
APPENDIX V.
The Geological Map on p. 33, does not exactly represent the views of the strata given
on the subsequent pages, it having been copied from the official geological map of the
Steinheim locality, sometime before the text was written.
Thus the Cloister-ridge Rocks near Steinheim are represented as the equivalent of the
Oxystomus Limestone near Sontheim, whereas they more nearly resemble the Coarse
Limestone. The rocks on the west side of the amphitheatre, and the two spots of rock also
shaded like the Oxystomus Limestone, and lying the west of these, again, are the Neusel-
halder rocks, and not at all like the Oxystomus Limestone, which contains a much younger
fauna.
CORRECTIONS.
Page 9, line 8, read animals for animal.
Page 11, line 39, read fig. 4 for fig. 40.
Page 12, note, line 2, read var. cochleata for var. rotundatiformis.
Page 14, line 30, read line ¢ for line A, omit line /.
Page 28, line 28, after ast, insert the words a large part of.
Page 30, line 24, after fig. 4, insert pl. 9.
Page 30, line 28, read early for easy.
Page 32, line 25, read immediate for direct.
Page 35, line 2; Pi. 74s in place of Pl. paiva,
Page 39, line 6, read wmbilicus for wmbiicus.
Page 49, line 22, read trochiformis for Trochiformis.
Page 62, line 11, read to for by.
Page 63, line 19, read pl. 8 for pi. 4.
Page 63, line 22, read pi. 8 line e fig. 2 in place of line e, fig. 2.
Page 67, line 21, read Jine c for line e.
Page 75, line 22, read Steinheimensis for “levis.”
Page 75, line 31, read sub-varieties for “ varieties.”
Page 77, line 7, after “Zine o,” insert PZ. 1.
Page 78, line 2, after “dine h,” insert except fig. 13.
Page 78, line 14, insert Pl. trochiformis as title in centre of page.
Page 78, line 36, read pl.2 for “pl. 1.”
Page 80, line 33, read traceable for “ tracable.”
Page 94, line 24, the PZ. pseudotenuis Hilg. there mentioned is not a true pseudotenuis.
106 HYATT ON THE TERTIARY SPECIES
EXPLANATION OF THE PLATES.
PLATE I.
Magnified 2 diameters.
List or Spectres.
Pl. Steinheimensis var. aequiumbilicatus, line a 1-4, b 17, ¢ 1, 19, m 1-7.
Pl. Steinheimensis line a 5-11, b 2-16, d 5, f 18, h 18, m 8-11, n 1-5.
Pl, 7425 Jine a 12-16, m 12-14,
Pil. 5 russ", line £ 1-3.
Steinheimensis,
Pl a lineibi Lc la=—145 dl—4 e016) ni 6513:
l. tenuis, line ¢ 2-12, 15-18, d 6-17, e 1-15, k 11, n 7-12, 14-15, o 1-7.
Pl. discoideus, line £ 4-17, g 1-14, h 1-12, i 1-12, k 1-5, 12, 1 1-10, 0 8-14, 16 (named specimen ), p1-13.
Pil. discoideus var. involutus, line d 18, e 17-19.
Pi. *echiformis line k 7, line o 15.
aisco
PI. tockiformis (var. elegans Hilg.), line k 6.
discoideus
Pl. trochiformis (= trochif. typus Hilg.), line k 8-10, 1 11-12.
RS
Cueck List py Lies.
Line a, figs. 1-4 Pl. Steinheimensis var. aequiumbilicatus, 5-11 Pl. Steinheimensis, 12-16 Pl. evans
Line b, fig, LPL. seit noi, 2-16 Pl. Steinheimensis,' 17 Pl. Steinheimensis var. aequiumbilicatus.
Line ¢, fig. 1 Pl. Steinheimensis var. aequiumbilicatus, 2-12 Pl. tenuis, 18-14 Pl. seiiitiensis, 15-18 Pl.
tenuis, 19 Pl. Steinheimensis var. aequiumbilicatus. -
Line d, figs. 1-4 Pl. sities, 5 Pl. Steinheimensis, 6-17 Pl. tenuis, 18 Pl. discoideus var. involutus.
Line e, figs. 1-15 Pl. tenwis, 16 Pl. syiiitiiensis, 17-19 Pl. discoideus var. involutus.
nheimensis,
Line f, figs. 1-3 Pl. Kia"; 4-17 Pl. discoideus, 18 Pl. Steinheimensis.
Line g, figs. 1-14 Pl. discoideus.
Line h, figs. 1-12 PZ discoideus, 13 Pl. Steinheimensis.
Line i, figs. 1-12 Pl. discoideus.
Line k, figs. 1-5 Pl. discoideus, 6 Pl. ychifem’ var. elegans, 7 Pl. *yhierns 8-10 Pl. trochiformis, 11
Pi. tenuis, 12 Pl. discoideus.
Line l, figs. 1-10 Pl. discoideus, 11-12 Pl. trochiformis.
Line m, figs. 1-7 Pl. Steinheimensis var. aequiwmbilicatus, 8-11 Pl. Steinheimensis, 12-14 Pl, otystomus
Line n, figs. 1-5 Pl. Steinheimensis, 6 Pl. srinitinensis, 1-12 Pl. tenis, 13 Pl. sreinhelmensis, 14-15 PI. tenwis.
Line 0, figs. 1-7 Pl. tenwis, 8-14 discoideus, 16 Pl. discoideus (named specimen), 15 Pl. “penice
Line p, figs. 1-13 Pl. discoideus.
Cueck List By SEecrions AND FORMATIONS.
Formation a.
Stratum a 1, Second Hole, and a, First Hole,? Old Pit, Sections 5, 6.
Pl. Steinheimensis var. aequiumbilicatus, line a 1-4, b 17, ¢ 1, 19.
Pl. Steinheimensis, line a 5-11, b 2-16, d 5, f 18, h 13.
EP crysomuny a A = G>
PI. seishetnensis, Line f 1-3.
PL. geist nce line. b 1, ¢ 18-14, d 1-4, e 16.
Steinheimensis,
1 Figs. 10-12 are very similar to Pl. m. parvus Hilg. * lines k-l,a special suite from the First Hole, Sect. 6 taken
* Lines a-k show a mingling of forms from both holes; during my second visit to Steinheim.
OF PLANORBIS AT STEINHEIM. 107
Pl. tenuis, line ¢ 2-12, 15-18, d 6-17, e 1-15, k 11, o 8-10.
Pl. discoideus, line f 4-17, g 1-14, h 1-12, i 1-12, k 1-5, 12, 1 1-10.
Pil. discoideus var. involutus, line d 18, e 17-19.
PA. "iritia, Vine k 7.
Pi. ‘rpchiformis (var. elegans Hilg.), line k 6.
Pi. trochiformis, line k 8-10, 1 1-12.
Stratum a2, Second Hole, Old Pit, Section 6.
Pi. Steinheimensis var. aequiumbilicatus, line m 1-7.
Pl. Steinheimensis, line m 8-11, n 1-5.
Pi, gos line m 12-14,
Pl. seinitinensis, line n 6, 13.
Pl. tenuis, line n 7-12, 14-15, o 1-7.
Pl. discoideus, line 0 8-16, p 1-13.
Pi. trochiformis line fay 15.
discoideus
PraArns ie
Magnified 2 diameters.
List oF SPEcIzs.
Pl. Steinheimensis var. aequiumbilicatus, line a 1-2.
Pil. Steinheimensis, line a 3-4.
Pl. Kraussii, line d 1-17, f 9.
PL. suite, Line a 7-8, q 12.
Pi. tenwis, line a 5-6, 9-12, e 18-27, f 1-8, 10-12, p 9-18, q 5-11.
Pi. discoideus, line a 13, b 1-6, 16, ¢ 1-13, f 13-19, h 1-18, i 1-14, k 1-2, m 3-4, 6-9, n 1-7, q 13-16.
Pi. discoideus (var. elatior Sand.), line i 15-17.
Pi, tpehcorm’s line m 1-2, 5, q 17-18, r 1-4.
Pl. trochiformis, line b 7-10, d 18-19, k 3-11, 1 1-11, n 8-12, 0 15-18, r 5-10, s 1-8.
Pi. trochiformis (var. pyrguliformis Sand.), line s 9-12.
Pl. discoideus (young with forms similar to rotwndatus Hilg.), line h 19-23.
Pl. trochiformis (young of normal varieties identical with rotundatus Hilg.), line o 1-14, p 1-8.
Pl. minutus, line e 1-6, 7-8, g 1-2, 4, p 14-20, b 11-15.
elena timere 101259016, q) 1.
Pl. denudatus, line e 13-14, g 7-8.
PA. minutus, line e 6, g 5.
Pi. costatus, line e 9, g 3, q 2-4.
Pi, mnie Jine e 15-17.
Pi. triquetrus, line g 9-23.
Cueck List sy Livgs.
Line a, figs. 1-2 Pl. Steinheimensis var. aequiumbilicatus, 3-4 Pl. Steinheimensis, 5-6 Pl. tenuis, 6-8
PU. seerintts isis, 9-12 Pl. tenuis, 13 Pl. discoideus.
Line b, figs. 1-6 PZ. discoideus, 7-10 Pl. trochiformis, 11-15 Pl. minutus, 16 Pl. discoideus.
Line ¢, figs. 1-13 Pl. discoideus.
Line d, figs. 1-17 Pl. tenwis var. Kraussti, 18-19 Pl. trochiformis.
Line e, figs. 1-5 Pl. minutus, 6 Pl. cites 78 Pl. minutus, 9 Pl. costatus, 10-12 Pl, tenmiates 1314 Pl, denu-
datus, 15-17 Pl. ns 18-27 Pl. tenuis.
Line f, figs. 1-8 P27. tenwis, 9 Pl. tenuis var. Kraussii, 10-12 Pl. tenuis, 13-19 Pl. discoideus.
108 HYATT ON THE .TERTIARY SPECIES
Line g, figs. 1-2 Pl. minutus, 3 Pl. costatus, 4 Pl. minutus, 5 Pl, costae 6 Pl, temdats 7_& Pl. denudatus,
9-23 Pl. triquetrus.
Line h, figs. 1-18 Pl. discoideus, 19-23 Pl. discoideus (rotundatus-like young).
Line i, figs. 1-14 Pl. discoideus, 15-17 Pl. discoideus (var. elatior Sand.).
Line k, figs. 1-2 Pl. discoideus, 83-11 Pl. trochiformis.
Line 1, figs. 1-11 Pl. trochiformis.
Line m, figs. 1-2 Pl. "pharm 83-4 Pl. discoideus, 5 Pl. tgchivermis 69 Pl. discoideus.
Line n, figs. 1-7 Pl. discoideus, 8-12 Pl. trochiformis.
Line 6, figs. 1-14 Pl. trochiformis (rotundatus young), 15-18 Pl. trochiformis.
Line p, figs. 1-8 Pl. trochiformis (rotundatus young), 9-13 Pl. tenwis, 14-20 Pl. minutus.
Line q, fig. 1 Pi. erudets 2-4 Pl, costatus, 5-11 Pl. tenuis, 12 Pl. fens’. 138-16 Pl. discoideus, 17-18
Steinheimensis,
PI, tochiformis
* discoideus.
Line r, figs. 1-4 PZ. "pekvarms 5 10 Pl. trochiformis.
discoideus,
Line s, figs. 1-8 PU. trochiformis, 9-12 Pl. trochiformis (var. pyrguliformis Sand.).
Cueck List By Sections AND ForMATIONS.
Formation a.
Stratum a3, Second Hole, Old Pit, Section 5.
Pl. Steinheimensis, var. aequiumbilicatus, line a, figs. 1-2.
Pl. Steinheimensis, line a, figs. 3-4.
Pl. seinkchvensie, line a, figs: 7-8.
Pi. tenuis, line a, figs. 5-6, 9-12.
Pl. discoideus, line a, fig. 13, b, 1-4.
Formation d, Section 5.
Pl. discoideus, line b, figs. 5—6,16.
Pl. trochiformis, line b, figs. 7-10.
Pl. minutus, line b, figs. 11-15.
Formation e, Section 6.
Pl. discoideus, line ¢, figs. 1-13.
Pl. trochiformis, line d, figs, 18-19.
Pl. Kraussii, line d, figs. 1-17.
Pl. minutus, line e, figs. 1-5, 7-8.
Pi, emacivs Vine e, figs. 10-12.
Pl. denudatus, line e, figs. 13-14. *
Pi. costatus, line e, fig. 9.
Pl. writs, line e, fig. 6.
Pi, mints line e, figs. 15-17.
Formation f, Section 6.
Pl. Kraussii, line f, fig. 9.
Pi. tenuis, line e, figs. 18-27, f, 1-8, 10-12.
Pl. discoideus, line f, figs. 13-19.
Pl. minutus, line g, figs. 1-2, 4.
Pl. “mints, line g, fig. 6.
Pl. denudatus, line g, figs. 7-8.
Pl, covers line g, fig. 5.
Pl. costatus, line g, fig. 3.
Pl. triquetrus, line g, figs. 9-16.
OF PLANORBIS AT STEINHEIM.
Formation h, Section 6.
Pi. triquetrus, line g, figs. 17-23.
Pi.
Pi.
AU:
Tf,
~
Pi.
Pi.
JPUh
JEN,
JA
Pi.
Pi.
Pi.
Pi.
Pi.
Pi.
Pi.
Pi.
Pi.
Pi.
Pi.
Pi.
Pi.
Pil.
Pi.
Pi.
discoideus, line h, figs. 1-18, i 1-14, k 1-2.
diseoideus (rotundatus-like young), line h, figs. 19-23.
discoideus (var. elatior Sand.), line i, figs. 15-17.
trochiformis, line k, figs. 8-11, 1 1-11.
Formation i, Section 6.
discoideus, line m, figs. 3-4, 6-9.
trochiforms line m, figs. 1-2, 5.
discoideus,
Formation k, Section 6.
discoideus, line n, figs. 1-7.
trochiformis, line n, figs. 8-12, 0 15-18.
trochiformis (rotundatus-like young), line 0, figs. 1-14, p 1-8.
tenwis, line p, figs. 9-15.
Formation 1, Section 6.
minutus, line p, figs. 14-20.
denudatus + 70"
mune, Une q, fig. 1.
denudatus, line q, figs. 2-4.
tenuis, line q, figs. 5-11.
Steinticimensis, line q; fig. 12.
discoideus, line q, figs. 13-16.
trochirormis ine q, figs. 17-18, r 1-4.
trochiformis, line r, figs. 5-10, s 1-8.
trochiformis (var. pyrguliformis Sand.), line s, figs. 9-12.
Puate II.
Magnified 2 diameters.
List or Spectres.
discotdeus, line ¢, figs. 17-19, d 1-11, e 1-12, f 1-14, g 1-9, h 1-10, i 5-9, 1 15-17.
eoehiores lime vis tio We
trochiformis, line a, figs. 16, 1 Amis
trochiformis var. elegans, line a, fig. 15.
minutus, line a, figs. 8-13, ¢ 2-4, d 12-16.
costatus (var. major Hilg.), line b, fig. 15.
Pl. parvus, line a, figs. 6-7, 20-22.
Pi.
Pi.
Tithe
Pi.
Pi.
Pi.
Pi.
mimtus (narvus Hilg. pars.), line k, figs. 1-4, 11.
erescens, line a, figs. 1-5, 17-19, 23, b 16-17, ¢ 9-16, i 10-14.
orystomus (var, revertens Hilg.), line k, figs. 5-10, m 10-14, p 6-14.
oxystomus, line a, figs. 14, b 1-14, ¢ 1, 5-8, k 12-18, 1 1-3, m 2-9, 0 2. |
supremus, line 1, figs. 12-14, n 1-7, 0 3212, p 1-5.
oxystomus var. cochleatus, line |, figs. 4-11.
supremus var. turritus, line n, figs. 8-13, 0, 1.
109
110 HYATT ON THE TERTIARY SPECIES
Cuecxk ‘List sy Lives.
Line a, figs. 1-5 P/. crescens, 6-7 Pl. parvus, 8-13 Pl. minutus, 14 Pl. oxystomus, 15 Pl. trochiformis
var. elegans, 16 Pl. trochiformis, 17-19 Pl. crescens, 20-22 Pl. parvus, 23 Pl. crescens.
Line b, figs. 1-14 Pl. oxystomus, 15 Pl. costatus var. major, 16-17 PI. erescens.
Line ¢, fig. 1 Pl. oxystomus, 2-4 Pl. minutus, 5-8 Pl. oxystomus, 9-16 Pl. crescens, 17-19 Pl. discoideus.
Line d, figs. 1-11 P/. discoideus, 12-16 Pl. minutus.
Line e, figs. 1-12 Pl. discoideus.
Line f, figs. 1-14 P/. discoideus.
Line g, figs. 1-9 Pl. discoideus.
Line h, figs. 1-10 Pl. discoideus.
Line i, fig. 1 Pl. "gchiformis 2-4 Pl. trochiformis, 5-9 Pl. discoideus, 10-14 Pl. crescens.
Line k, figs. 1-4 Pl. "2 (parvus Hilg. pars.), 5-10 Pl. fos" (var. revertens EL] 3) lula le ee
(parvus Hilg., pars.), 12-18 Pl. oxystomus.
Line l, figs. 1-3 Pl. oxystomus, 4-11 Pl. oxystomus var. cochleatus,! 12-14 Pl. supremus, 15-17 Pl. discoi-
deus.
Line m, fig. 1 Pl. trochiformis, 2-9 Pl. oxystomus, 10-14 Pl. pres
Line n, figs. 1-7 Pl. supremus, 8-13 Pl. supremus var. turritus.
Line 0, fig. 1 Pl. supremus var. turritus, 2 Pl. oxystomus, 3-12 Pl. supremus.
Line p, figs. 1-5 Pl. supremus, 6-14 Pl. iin
Curck List By Srcrions AND ForMATIONS.
New Pit, South side.
Formation f, Section 8.
Pl. crescens, line a, figs. 1-3.
Formation h, Section 8.
Pl. parvus, line a, figs. 6-7.
Pl. crescens, line a, figs. 4-5.
Pl. oxystomus, line a, fig. 14.
Pl. minutus, line a, figs. 8-13.
Formation i, Section 8.
Pl. trochiformis var. elegans, line a, fig. 15.
Pi. trochiformis, line a, fig. 16.
Pi. parvus, line a, figs. 20-22.
Pl. crescens, line a, figs. 17-19, 28.
Pl. oxystomus, line b, figs. 1-11.
Formation k, Section 8.
Pl. oxystomus, line b, figs. 12-14.
Pl. crescens, line b, figs. 16-17.
Pl. costatus var. major, line b, fig. 15.
Formation 1, Section 8.
Pl. oxystomus, line ¢, fig. 1.
Pl. minutus, line ¢, figs. 2-4.
Formation m, Section 8.
Pl. oxystomus, line ¢, figs. 5-8.
Pi. crescens, line ¢, figs. 9-16. <
1This species is erroneously referred to as var. rotundatiformis on p. 12.
OF PLANORBIS AT STEINHEIM. aialal
Cloister Pit.
Formation k, Section 1.
Pl. minutus, line a, figs. 12-16.
Pl. discoideus, line ¢, figs. 17-19, d 1-11, e 1-12, f 1-14.
Formation 1, Section 1.
Pi, mimes line k, figs. 1-4, 11.
Pl. crescens, line i, figs. 10-14.
Pl. orysioms Vine k, figs. 5-10.
Pl. oxystomus var. cochleatus, line 1, figs. 4-11.
Pl. supremus, line 1, figs. 12-14.
Pi. discoideus, line g, figs. 1-9, h 1-10, i 5-9.
Pi, *pckiferms line i, fig 1.
Pi. trochiformis, line i, figs. 2-4.
Pl. oxystomus, line |, figs. 1-3.
SS
aN
Formation m, Section 1.
Pi, orysioms line m, figs. 10-14, p 6-14.
Pl. oxystomus, line m, figs. 2-9, 0 2.
Pl. supremus, line n, figs. 1-7, 0 8-12, p 1-5.
Pl. supremus var. turritus, line n, figs. 8-13, o 1.
Pi. discoideus, line |, figs. 15-17.
Pl. trochiformis, line m, fig. 1.
Prats IV.
Magnified 8 diameters.
Line a, figs. 1-7 Pl. minutus.
Line b, figs. 1-4 Pl. minutus, 5-6, 9 Pl. triquetrus var. turbinatus, T-8 Pl. timers
Line ¢, figs. 1-8 Pl. triquetrus, 4-5 Pl. timetns 69 PI, denudeis 1
Line d, figs. 1-5 P/. %emmiats uncoiled in various degrees, 6-10 same, but more turbinate.
Line e, figs. 1-5 Pl. denudatus, uncoiling excessive, but turbination slighter than in 6-8; 9 broken adult,
whorl of, 10, the young of the same shell perfectly flat and in part closely coiled, 11, young stage of another
broken out. This, though not a distinct figure shows that the coiling is in the same plane in the young.
Line f, figs. 1-8 Pi. costatus
Line g, fig. 1, Pl. costatus, 2 Pl. costatus var. distortus, 3-10 Pl. costatus.
Line h, figs. 1-7 Pl. costatus (Pl. costatus var. major of Hilg.), var. acuto-costatus.
Line i, figs. 1-5 Pl. costatus var. platystomus, 6-12 Pl. costatus (=major Hilg. pars.), var, obtuso-costatus,
much distorted.
Line k, figs. 1-7 P7 costatus var. obtuso-costatus (= Pl. major Hilg. pars.), 8 PZ. conais
PLATE V.
: Magnified 534 diameters,
Line a, figs. 1-4, P/. levis from Undorf.
Line b, figs. 1-7, Pl. parvus.
Line ¢, figs. 1-6, Pi. crescens 7 Pl. cresre* turretted variety.
parvus,
1 The different forms of P/. denudatus, Pl. costatus var.
distortus and Pl. costatus var. platystomus would probably
have been more clearly understood if I had given them sep-
arate specific names and called them respectively Pl. denu-
datus, Pl. distortus, and Pl. platystomus, but having neglected
doing this, and even in one place on page 10, spoken of Pl.
denudatus, as variety denudatus, I thought it best to make no
alterations in the nomenclature used in the text, p 65.
112 HYATT ON THE TERTIARY SPECIES
=
Line d, figs. 1-7 Pl. crescens. Fig. 2 line d shows a specimen of the young, which at a very early age
begins to show the compressed form of the whorl, which distinguishes the adult of 7. crescens. In fact the
three young specimens on this line form a series in this respect, fig. 2 being the most compressed, fig. 6 next,
and fig. 4 the least, although figs. 2 and 4 are of the same age and fig. 6 a little older. The adults of all of
the three would have been about equally compressed in form.
Puate VI.
Magnified 534 diameters.
Line a, figs. 1-3 P7. levis from Undorf, 4-7 P27. ozoms (= revertens Hilg.).
Line b, figs 1-6 Pl. -sv"s (= revertens Hilg.), somewhat stouter than the normal forms of P27. levis, even
in the young, fig. 5.
Line ¢, figs. 1-5 Pl. oxystomus with extremely stout whorls even in the young. In this variety the young
are very similar to the rotundatus-like young of Pl. trochiformis, see pl. 2, line 0, figs. 1-14, line p, figs. 1-8.
They, however, are distinct in the aspect of the upper umbilicus, in the carinations and shell, and outline of
the opening of the whorl, especially in the younger stages. Compare also figures on lines 0 and p, pl. 3, with
figures of young of P7. oxystomus var. cochleatus, pl. 3, line 1, figs. 4-11, which also have extremely stout
whorls in the young. Fig. 6 is.a fine specimen of the transition from the normal variety to the turretted
form, variety cochleatus of Pl. oxystomus.1
Line d, fig. 1 Pl. oxystomus var. cochleatus, full grown shell,? figs. 2-4 Pl. oxystomus, normal variety,
showing the identity of a young shell, fig. 4, with a shell of the same size of Pl. levis, from Undorf.
Line e, fig. 1 Pl. supremus var. turritus, figs. 2-4 Pl. supremus.
Pratt Vile
Magnified 4 diameters. .
Line a, figs. 1-2 P/. levis, Undort. Figs. 3-5 are deeply umbilicated forms of Pl. Steinheimensis which
are similar to fig. 1 in this respect and in the form of the whorls. Fig. 6, P/. /evis, Undorf, to compare with
figs. 7-9 Pl. Steinheimensis, adult and young with a similar form of whorl. Fig. 10 an unusually turbinate
form of PJ. tenvis.
Line b, figs. 1-2 P/. Steinheimensis for comparison with figs. 83-4 P/. levis, Undorf. Fig. 5 Pl. Steinheim-
ensis with sub-angular outer whorl for comparison with fig. 6 PZ. levis, Undorf. Figs. 7,8 Pl: Steinheimensis,
younger stages of same variety as fig. 5.
Line c, figs. 1-38 Pl. Steinheimensis with very slight unsymmetrical and cylindrical whorls, figs. 4,5 PU.
Steinheimensis normal variety (see specimens) with cylindrical whorls, figs. 6, 7, normal variety with unsym-
metrical whorls and a deeper, narrower umbilicus on the lower side than in the preceding. Fig. 8 Pl. Stein
2
heimensis var. aequiumbilicatus ?
Line d, figs. 1-6 specimens of Pl. Steinheimensis with stouter whorls transitional to those of line e. Fig.
7 Pi. tenuis, from the rocks of the Upper Tier of the Cloister Ridge. This has young like the adult of PZ.
Steinheimensis.
Line e, fig. 1 Pl. Steinheimensis with an extremely turbinate tendency expressed in the last whorl. Figs.
2-4 are large fine specimens of the normal unsymmetrical varieties, figs. 5-7, are Pl. seni". ,«;, for comparison
with these and others below, for example compare the umbilicus of fig. 7, with fig. 6, line ec.
Line f figs. 1-3 Pl. sreifi2s ysis, SOMeWhat more advanced stage of transition, figs. 4-7 Pl. tenuis.
Line g, Pl. tenuis.
Line h, Pl. discoideus, figs. 1-4 flatter variety with acute carinations, figs. 5-7 stouter varieties with gener-
ally less acute carinations.
Line i, Pl. discoideus with rotundatus-like young, showing transitions to the varieties of PJ. trochiformis
having similar young.
1 See in this connection remarks on page 70. 8 See for discussion of figures on this plate, p. 83.
2 This shell has a much shallower umbilicus than the one
figured on pl. 9, fig. 11, and described on p. 12.
OF PLANORBIS AT STEINHEIM. 113
Prats VIII.
Magnified 4 diameters.
Line a, fig. 1 PZ. Steinheimensis, same as fig. 13, line h, pl. 1, an aged specimen of extraordinary size, show-
ing the deflection and contraction of the last formed or oldest part of the outer whorl; fig. 2 P/. Steinheim-
ensis, also very large and beginning to show senile changes, same as fig. 18, line f, pl. 1. Figs. 83-5 Pl.
oxystomus; fig. 3 has the spiral deflected as the result of a wound, possibly also in part as the result of old
age; figs. 4-5 are probably both distorted solely by senile or geratologous metamorphoses.
Line b, figs. 1-6 Pl. "ifn" (=revertens, Hilg.); figs. 1 and 6 are normal forms with spiral deflection probably
due to old age; fig. 2 shows a cicatrix which has produced a precisely similar effect wpon the size and direc-
tion of the last part of the last whorl; fig. 3, probably distorted from some normal disease or old age ; figs.
4, 5 are undoubtedly weak or diseased specimens in which the spiral is very greatly deflected as in Pl. denw-
datus.'
Line ¢, figs. 1-6 P7. "ze" ‘These specimens are all distorted apparently from the. results of wounds or in-
juries received during the building of the last whorl.
Line d, figs. 1-4 Pl. supremus; all are more or less deflected, and the striae enlarged as the result of geratol-
ogous changes.?
Line e, figs. 1-8 Pl. trochiformis, fig. 1 shows a deflected spiral probably due to disease. Fig. 2 is a front
view of fig. 10, line r, pl. 2. The distortion or deflection of the whorl is evidently caused by the age and
perhaps also, diseased condition of the specimen, as may be seen from the enlarged striae and thickened shell.
Fig. 3 is distorted on account of a severe wound.®
. PrarE 1X.
Magnified 4 diameters.
Figs. 1-7 Fourth Series showing transformations from P27. levis var. ““"jcize* Undorf, fig. 1(= fig. 1, line a,
pl. 7), to Pl. trochiformis fig. 7. Fig. 2 Pl. Steinheimensis, 3 Pl. syniiti® ci, 4 Pl. tenuis, 5 Pl. discoideus, 6
Pi trochiformis
* discoideus.
Figs. 8-11 Z%ird: Series-showing transformation from P/. levis var. "32" Undorf, fig. 8 (= fig. 1 pl. 6), to
Pl. supremus var. turritus, fig. 11. Fig. 9 though spoken of in the text p. 10 and elsewhere as PZ. oxystomus,
is really a specimen of revertens Hilg.—= Pl. 42" out of the Sand Pits, Steinheim, and ought to have been
supplemented by a figure of true Pl. oxystomus such as fig. 1, line ¢, pl. 6, but this plate was already finished
before I became aware of the need of another figure. Fig. 10, PZ. supremus, is the flat and suleated variety
of this species.
Figs. 12-15 Second Series showing transformations from PU. levis var. 775 Undorf, fig. 12 (= fig. 1 pl. 5),
to Pl. erescens, trochiform variety, fig. 15.
Fig. 13 Pl. veers The gap here which should have been filled by a figure of Pl. parvus was left unfilled
purposely on account of the number of figures necessary, see pl. 5, lines b, ¢. Fig. 14, Pl. erescens, normal
variety.
Figs. 16-28 Mirst Series, figs. 16-20, third sub-series includes P27. levis var. "ims Undorf, fig. 16 (=fig. 2,
line a, pl. 7), DZ. "iit fig. 17, also Pl. minutus, fig. 18, which has cylindrical whorls showing one of the tran-
sition forms from Pl. "74" to the normal Pl. minutus, fig. 21 at the base of the next sub-series,‘ also fig. 19,
true Pl. triquetrus, and fig. 20, Pl. triquetrus var. turbinatus.
Figs. 21-24, second sub-series includes P/. minutus, fig. 21, normal smooth form, which leads into Pi.
iis, HES. 22, 23, and Pl. minutus var. distortus, fig. 24. The intermediate forms, etc., are given on pl. 4
and described in the text on pages 59 to 66.
1See also description on p. 13, of other forms, and discus- 3 Compare, also, fig. 11, line s, pl. 2.
sion on pp. 15, 17. ° 4 The transition forms from Pl. minutus to Pl. triquetrus are
2 Compare, also, pl. 3, figs. 1-2, line n, 5, 6, line g, 4, line _ photographed on PI. 4.
h; pl, 2. figs. 2, 3, line h, fig. 6, line i.
114 TERTIARY SPECIES OF PLANORBIS AT STEINHEIM.
Figs. 25-28, first sub-series includes as previously mentioned p. 65, two sub-series, the acuto-costate and the
obtuso-costate, but as they are both exactly parallel in the production of the distorted varieties, platystomus
and distortus, it was not considered necessary to go to the expense of making up and photographing another
plate. Fig. 25 Pi. evans fio, 26 Pl. costatus, the costae are coarser in these figures than in the specimens and
so also are those of Pl. costatus var. distortus, figs. 27, 28, but they show accurately the forms of this sub-
series.
Nore. These plates are described in the text as having been photographed by Sonrel and Black, but the
negatives prepared by them could not be used by the Heliotype Company, and the whole were successfully
rephotographed by the latter.
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1830. ANNIVERSARY MEMOIRS OF THE BOSTON SOCIETY OF NATURAL HISTORY, 1880,
THE DEVONIAN INSECTS OF NEW BRUNSWICK.
BY SAMUEL H. SCUDDER.
BOSTON:
PUBLISHED BY THE SOCIETY.
1880.
Ture DevontAn Insects or New Brusnwicx.
By Samuret H. Scupper.
CONTENTS.
I. Introduction. VIII. Xenoneura antiquorum.
II. The structure of the wings in Ephemeridae; IX. General summary.
with a note on a jurassic may-fly. X. Note on the geological relations of the fossil
III. Platephemera antiqua. insects from the devonian of New Bruns-
IV. Gerephemera simplex. wick. By Principal J. W. Dawson, LL.D.,
V. Homothetus fossilis. 15 18 fSi5 ues
VI. Dyscritus vetustus. XI. Explanation of the plate.
VII. Lithentomum Harttii.
Il. IntrrRopvuctTIoNn.
INVESTIGATION of fossil remains of the oldest insects is nearly always extremely diffi-
cult and perplexing, and often very unsatisfactory in its results. The interest, however,
necessarily attaching to the beginnings of life, warrants any labor that may be expended
upon them. Especially is this true of the fragments treated of in this paper, because
they are as yet the only insect remains which have been found in rocks older than
the carboniferous formation in any part of the world. The writer may be pardoned for
adding that they possess a special attraction for him, as among the specimens which
first directed his particular attention to fossil insects, and he only regrets that so
long a period as fifteen years should have elapsed before their full discussion.
The remains consist entirely of broken wings, and were discovered in 1862, by the
late Professor C. F. Hartt (at the time of his death director of the geological survey
of Brazil), while searching for plant remains in the devonian shales near St. John,
New Brunswick. The locality — called Fern Ledges by Mr. Hartt, from the abundance
of plant remains which occur in the black shales that are interstratified with the
prevailing sandstones — is about a mile west of the town of Carleton, not far
from St. John. The rocks form a series of ledges, exposed on the sea-shore between
high and low water marks. The beds of sandstone and shale, of which they are
composed, have a seaward dip of about 45°, and a strike of about W. 10° N.,
corresponding very nearly to the trend of the shore. The fossiliferous shales between
the enclosing sandstones are worn away by the action of the water, leaving the fossils
accessible in only a few places. The whole deposit is of very limited extent; it
reaches along the shore for about three hundred and twenty-five paces, exposing a thickness
of strata of about forty-five meters, with a width of about ninety meters.
4 SCUDDER ON THE DEVONIAN
The specimens discovered were six in number, some of them with their reverses.
They are now in the museums of the natural history societies of St. John, N. B.
and Boston, Mass. I am much indebted to Mr. G. F. Matthew, of the former institution,
and to Professor A. Hyatt of the latter, for the opportunity of studying these specimens
anew at my leisure.
The plan of the present paper will be seen by a glance at the table above. As
the simpler devonian insects, first described, have certain special relations with the
Ephemeridae, their description is preceded by an account of the wing structure of
the modern May-flies, as a basis of comparison; each of the devonian species is then
separately described, and its affinities discussed, and the whole is followed by a general
summary. The stratigraphical question being, in this instance, of special importance,
Principal Dawson has kindly prepared for me a statement of the case with which
the article closes.t
II. Tue SrrucTURE OF THE WINGS IN EPHEMERIDAE; WITH A NOTE ON A JURASSIC
SPECIES.
The following statement considers mainly the direction and division of each of the
principal veins, and the comparative areas covered by them.
The marginal vein forms the costal border. The mediastinal vein is absent or, perhaps,
amalgamated with the scapular in Lachlania, Oligoneuria and Tricorythus; in all
others it is simple, and extends to, or almost to, the tip of the wing, keeping
at a very short and nearly uniform distance from the margin, with which it is generally
connected, especially on the apical half of the wing, by frequent cross veins. On
the basal half, the cross veins may be as abundant as apically, but they are generally
rarer, and may be entirely absent, even when frequent apically ; or they may be absent
throughout. In very rare instances, as in Coloburus, an intercalary vein may be
found in the apical half of the wing between this vein and the costal margin.
The scapular vein is simple, and reaches the tip of the wing, excepting in the
three genera mentioned above, where it may perhaps be said to be amalgamated
with the mediastinal, as shown by its forking near the middle of the wing in
Tricorythus; in Lachlania, however, it terminates not at the tip, which possesses
only the marginal vein, but near the middle of the costal border. It is always
connected with the vein below by a greater or less number of, usually many, cross veins.
The externomedian vein is always compound, and always covers at least half, usually
much the greater part of the wing. It always divides at the very base, and the upper
branch is always forked, while the lower may, although rarely, remain single, and is
usually forked to a less extent than the upper branch. Three is, therefore, the
smallest number of nervules which may reach the margin in the area covered by
1 Besides the references given in the bibliography under Dawson’s Acadian Geology, 2d ed., pp. 513-23. 8vo. London,
each species, notices of the devonian insects will be found 1868. Darwin, Descent of man, I, 360. 12mo., London, 1871,
in the following places: Hartt, on the Devonian plant- Stett. Ent. Zeit., xxvii, 145-53, passim. Trans. Entom.
locality of the Fern Ledges, Lancaster, N. B., in Bailey’s Ob- Soe. Lond., 1871, 38-40. American Naturalist I, 445, 625-
servations on the Geology of Southern New Brunswick, pp. 26. Proc. Boston Soc. Nat. Hist., X, 96, XI, 150-51,
131-40. 8vo., Fredericton, 1865; reprinted in substance, in Memoirs Boston Soe. Nat. Hist. II], 13-21, passim.
INSECTS OF NEW BRUNSWICK. 5
the vein, and this number we find in Oligoneuria and, perhaps, in Lachlania. The
portion of the area of this vein covered by the upper branch and its forks is almost
always greater, generally considerably greater, than that covered by the lower branch;
an exception to this will be found in Polymitarcys where the lower area is greater,
owing to unusual breadth of wing combined with narrowness of the area covered by
the intermedian vein, which has been crowded out of much of its natural ground by
this lower branch. Some of the allies of Polymitarcys, especially “Asthenopus and
Pentagenia, also have this area of the lower branch larger than usual, although not
larger than that of the upper branch, and some other genera not placed near it exhibit
a similar propensity ; but asa general thing, the area covered by the lower is scarcely
more than half as large as that covered by the upper branch, and not infrequently it is
less than one third its extent. The upper branch usually forks close to the base,
occasionally at the very base, and sometimes the upper of the forks is amalgamated
at the base with the scapular vein, as in Asthenopus, Tricorythus and Chloeon, and
to a certain extent in Coenis, so as to give it the appearance of originating from that
vein, and of complete independence of the externomedian; whether thus severed from its
connections, or plainly arising from the externomedian root, this upper fork of the upper
branch runs in proximity to the scapular vein, parallel or subparallel to it, and, excepting
where the venation is occasionally simple (as in Oligoneuria, &c.), always emits from its
lower surface in the central portion of the wing one, two, or three nervules; the first
and second of these nervules are usually pretty near together at base, but all generally
reach the border at unequal distances apart, the inequality being made good by
intercalary longitudinal nervules ; these intercalary nervules often curve at their inner
extremities toward or to one or another of the adjoining nervules, assuming then the
appearance of regular branches, while the nervules proper are themselves oftener
detached from their base; so that it is sometimes difficult to tell whether a given vein
should be considered normal or intercalary. The lower fork of the upper branch is
occasionally simple, as in the Tricorythus, but usually forks once at about the middle
of its course, rarely near the base, and very frequently encloses an intercalary nervule
between these branches, but no intercalary nervules (excepting such as often break
up the extreme margin into an irregular meshwork of veins) ever intervene between the
upper nervule of this fork and the lower nervule of the upper fork, nor between its
lower nervule and the upper nervule of the lower branch of the externomedian vein,
excepting in the rare instances where this lower nervule is detached from its base, and
takes on the form of an intercalary nervule.
This lower branch, as has been said, is usually forked to a less extent than the upper
branch, but a conspicuous exception is found in Polymitarcys where the branch is made up
of a large number of sub-convergent simple rays, directed from the outer margin
toward various parts of the upper internomedian nervule, but generally lost before reaching
it. In general. however, its area is only about half that of the upper branch; it usually
forks close to the base, and each or either of its branches may again subdivide once ; all other
nervules in the area are sure to be intercalary; where it forks only once there is usually
a single intercalary nervure midway between the branches, which seems to belong to one
or the other of them and to represent its fork ; while between it and either branch there
6 SCUDDER ON THE DEVONIAN
may be other shorter intercalaries; the only exception to this general statement is the
case of Polymitarcys already cited, where after division at the base the upper fork must
be looked upon as breaking up at once into three rays, while the lower severed from its
connections breaks up similarly into a couple of forked rays; the amount of abnormal
divergence in this case may be better seen, by stating that it is the only genus of Ephem-
eridx in which this area is carried around the lower outer angle of the wing; in all others
it stops short of, usually far short of this angle; here it reaches around it half way along
the anal margin. The genus agrees, however, with all the others in that all the branch-
ing occurs in the basal half of the area. In Oligoneuria and Lachlania the branch is
simple and undivided, unless the apparent branch in the latter should be looked upon as
such, and not as a cross nervure, like the more directly transverse veins above it.
The area of the internomedian vein is never great, although always more extensive than
that of any other vein but the externomedian, and it always includes the lower outer
angle of the wing, excepting as above specified in Polymitarcys, and excepting also in
the full-angled Tricorythus, where the anal area disputes its sway. Its construction is gen-
erally similar to that of the lower branch of the extermomedian vein, although from the
form of the area covered by it, its absolute appearance is very different; moreover, one
rarely finds in it any intercalary nervures, excepting such as sometimes line the-
extreme border, the smaller nervures almost always originating from the main stems ;
the exceptions are found in Leptophlebia, Cloeon, and Baetis. The vein almost invariably
forks at its extreme base, and from the upper of these branches sends either, rarely, a
single shoot, or, much more frequently, a half a dozen, occasionally a dozen simple or forked
shoots to the margin. In the interesting fossil described in the note at the end of this
section these shoots appear to originate from the lower branch, the upper remaining
simple, just as rarely occurs in living forms as e. g., in some species of Leptophlebia.
The anal vein invariably plays an insignificant part, and is apparently sometimes want-
ing. Its area seldom reaches even half way along the anal margin, but in Tricorythus it
extends even around the lower outer angle, fairly upon the outer margin. Here it is
composed of a single vein with three or four short but widely divergent branches ; usually
it is forked at the base, and occasionally one or the other of these forks imitates the rayed
branch of the internomedian by sendmg a number of parallel branches, often closely
crowded, to the margin.
This account of the neuration of the Ephemeridae is based upon much more extended
material, and a longer study than that formerly given by me in my first quarto paper on
fossil neuroptera, and corrects it in several important particulars, especially in the account
of the internomedian vein, which was eroneously stated to be simple? and in the fuller
statement of the divisions of the externomedian vein.
Note on a Jurassic May-fly.
Hexagenites Weyenberghii, gen. et sp. nov.:—A frasment of a wing only is preserved, in
5 fo) fo) )
which the entire costal area and base are wanting. The neuration of the parts that remain
1 This statement was evidently the result of some over- same memoir it was remarked that the internomedian vein
sight, since in the digest given on a subsequent page of the was “ similar in character to the vena externomedia.”
INSECTS OF NEW BRUNSWICK. Uf
is perfect and indicate an insect whose alar expanse was nearly 45 mm., and which is most
nearly related to Hexagenia; the first inferior nervule of the upper fork of the upper
branch of the extermomedian vein is thrown off some way before the middle of the wing;
the lower branch forks at some distance beyond the middle of its course, and encloses
between its branches a single intercalary nervule which extends nearly to the widely
spreading fork. Ata short distance from the base of the wing the lower branch of the
externomedian vein has divided into three branches, the middle one nearer the upper than
the lower, all of which continue undivided to the margin; two intercalary nervures of
unequal length occur in each of these interspaces, extending almost half way to the base
in the lower interspace, besides many short ones near the margin; the lowest of these
branches is considerably curved and subparallel to the inner margin. The internomedian
vein probably divides at the very base into two branches, the upper of which is simple,
runs subparallel to the lowest externomedian nervule, striking the angle of the wing,
while the other branch is in close proximity to it and throws off a large number of sin-
uous simple branches to the anal margin, in doing which its outer half follows an irreg-
ular course by a slight change of direction with each emission. The cross-veins are mod-
erately frequent and subuniform throughout the portion of the wing which is preserved
excepting in the internomedian area, and the border is much broken by interealary nerv-
ules into cells which are quadrate and generally much longer than broad. The anal
area must be very contracted and the form of the wing closely resembles that of Hexa-
genia.
The specimen is from Solenhofen, and is in the British Museum. The description is
drawn up from a very clear sketch magnified 7 diameters, taken with the camera and pub-
lished by Rev. Mr. Eaton in the Transactions of the Entomological Society of London,
1871. Pl. 1, fig. 10.- The species is dedicated to my friend Dr. Weyenbergh, of Cordoba,
who has done so much in increasing our knowledge of the Jurassic insect fauna of Bavaria.
III. PLATEPHEMERA ANTIQUA. Pl. 1, figs. 5, 9, 10.
Platephemera antiqua Scuvp., Can. nat., (n.s.) ut, 205, fig. 2 (1867) ;—Is., Geol. mag.,
Iv, 387, pl. 17, fig. 2 (1867) ; —In., Dawson, Acad. Geol., 2d ed., 524, fig. 181 (1868) ; —
Iz., Amer. nat., 1, 630, pl. 16, fig. 3 (1868) ; — In., Geol. mag., y, 173, 175-76 (1868) ; —
Pack., Guide ims., 77-78, pl. 1, fig. 3 (1869);— Nicuors., Man. pal., 185, fig. 128
(1872) ; —Is., Ane. life hist. earth, 145, fig. 89 (1877) ; — Dana, Man. geol., 2d ed., 273,
fig. 550 A (1874) ;— Rorm., Leth. geogn., pl. 51, fig. 9 (1876).
Mentioned without name, as the first species, in my letter to Mr. Hartt on the Devonian
Insects of New Brunswick (1865) ;— Bailey, Obs. geol. south. New Brunsw., 140
(1865) ; — Amer. journ. sc., (2) xxxIx, 357 (1865) ;— Can. nat., (n.s.) 1, 23 (1865); —
Trans. entom. soc. Lond., (3) m1, 117 (1865). See also Amer. journ. sc., (2) xn, 277
(1865).
The wing was ample (whence the generic name) and gigantic. Probably a third of
the wing is wanting at the base, besides the greater part of the extreme outer edge, but
the fragment preserved enables us to judge, probably with considerable accuracy, both
the general structure and, by the direction of the nervules and of the margins, the general
8 SCUDDER ON THE DEVONIAN
form of the wing, which is presumed to be much as outlined on the plate. The wing
was probably more than 60 mm. in length, and about 27 mm. in breadth; the alar
expanse was therefore at least 125 mm., and probably 135 mm., and the two figures
have been so placed as to indicate this expanse.
This is more than double the ordinary size of the larger Ephemeridae and the largest
mentioned in Eaton’s paper on these insects has an expanse of only 78 mm., and the
largest of the jurassic species only 65 mm.
The costal margin is very gently arcuate; the apex probably somewhat pointed, toward
which the upper veins are directed without additional arcuation; the greatest breadth
was probably a little before the middle of the wing, and the outer perhaps half as long
again as the anal margin. The marginal vein runs close to but does not form the margin
of the wing, the latter being indicated in the figures on the plate by a dotted line.
The mediastinal vein runs as close as possible to the margin, and is not connected with
it by cross veins; these two veins apparently run side by side to the apex, when the
marginal disappears and the mediastinal takes its place close to the border. The scapular
vein runs sub-parallel to the mediastinal, but at double the distance from it apically as
basally, the change occurring rather abruptly near the middle of the preserved portion of
the wing; it is connected with the vein above by straight cross-veins at tolerably regular,
rather frequent intervals.
As usual in this family, the externomedian vein is apparently divided, probably not far
from, or at the base, into two stems, and the upper of these stems is again divided, prob-
ably at some distance from the base, into two principal branches; the main portion of the
upper branch runs parallel to, but somewhat distant from the scapular vein, approaching
it, however, apically, and is everywhere connected with it by cross-veins, very much as in
the mediastino-scapular interspace; it throws off from its inferior surface several inequi-
distant feeble offshoots; the first originate a little before the middle of the wing, and
run irregularly but with a gentle downward curve to the outer margin ; they have between
them and between the outermost and the main branch a number of equally irregular
intercalary nervules, all of which are connected together by cross-veins, and thus form
over the whole area a mesh work of irregular but usually hexagonal and longitudinally
elongated cells, making it impossible to distinguish between normal and interealary veins,
since the latter are as prominent as the former, and invariably arise from cross-veins ;
while whatever nervules lie next the main branch are united with it by frequent and,
equally irregular cross-veins fallimg from the main branch quite in the manner of the oft
shoots proper, and forming cells only slightly larger than the others, although generally
transversely elongated; together there are about nine rows of cells between the main
upper branch and its first offshoot. The lower branch of the upper stem is simple and,
originating apparently near the middle of the basal half of the wing, diverges at first
slightly from the upper branch, afterwards a little more rapidly, and in its apical fourth
curves downward considerably, and is somewhat irregular in its course; its direction is in
general parallel to the offshoots, and especially the nearer offshoots of the upper branch,
and on the border it is separated from the apex of the upper branch by nearly one-third
of the outer margin of the wing; in its simplicity this branch resembles the same nervure
oD?
in Tricorythus, which is peculiar in this particular among modern Ephemeridae. As in
INSECTS OF NEW BRUNSWICK. 9
modern Ephemeride generally, there is no intercalary nervule between this lower
branch of the upper externomedian stem and the first offshoot of the lower branch, but
this interspace is filled with simple and frequent cross veins.
The lower externomedian stem is apparently formed on the same plan as the upper, a
feature which appears to have no counterpart among living Ephemeridae ; apparently it
is composed, like the upper, of two primary branches, which seem to part from each other
very nearly at the same considerable distance from the base, (about one-third the distance to
the margin), a feature uncommon but not unknown in living Ephemeridae ; but instead of
having a single independent intercalary or two between the forks, it has several offshoots .
which depend from the upper branch, just as the offshoots of the upper branch of the
upper stem do, while between them in the outer half of their course other intercalaries
arise, depending from angular cross veins—the whole united by frequent cross veins
(again as in the upver area), to form a mesh-work of irregular cells generally pentagonal,
although not often longitudinal; there are thus included between these forks about six
rows of cells. The interspaces directly adjoming either side of the lower branch of the
upper externomedian stem are slightly wider than the interspaces between the nervules in
the area of the lower externomedian stem, possess no intercalaries, and are divided by
frequent cross veins. ‘The lower branch of the lower externomedian stem also curves
downward at the tip, like the lower branch of the upper stem; the area of the lower
externomedian stem repeats, therefore, and on only a little smaller scale, the structure of
the area of the upper stem, instead of exhibiting, as in recent forms, distinctive features.
That portion of the fragment of the wing lying below what we have here considered
the lower simple branch of the lower externomedian stem, and which is shown in fig. 10
and not in fig. 9, is so fragmentary and so separated from its basal connections that it is
difficult to decide to what area of the wing it belongs; it consists of four rows of cells
separated by curving nervules a little more uniform in their course than the minor
nervules above, with slightly less frequent cross veins; the cells being slightly larger and
more regular, frequently quadrangular and usually longitudinal ; this field belongs of course
either to the externomedian or the internomedian area. The general similarity of the
structure of the fields would lead one at first to suppose it to belong to the externomedian
area, in which case of course our description of the lower stem and its branches should be
modified to receive it. As, too, the form of the fragment would indicate that a very
considerable part of the region about the anal angle is lost, the reference of this field to
the internomedian area would give that area a very great and very unusual preponderance
in the wing. But its reference to the externomedian area, which is certainly possible,
would involve quite as great an anomaly ; for in that case the lower externomedian stem
must be supposed to consist of two branches, the lower lying beyond the present
fragment and probably simple, the upper forked and reproducing on a smaller scale the
whole of the upper externomedian stem, including the minor offshoots depending from the
uppermost branch of each. In this case the area of the lower stem would exceed that of
the upper, which occurs in very rare instances in modern Ephemeridae and then only by
crowding out of room the lower areas, which the probable wide expanse of this wing would
not allow unless this lower area is of an exceedingly disproportionate size. The
translation of the facts which I have offered in my description, on the other hand, while it
10 SCUDDER ON THE DEVONIAN
requires a very unusual development of the internomedian area, leaves the lower externo-
median field in its usual proportionate extent as compared to the upper field, and is
further supported by several considerations: chiefly by the probability that where
repetitions of structure are found—a mark of simplicity much more common among
ancient than among recent insects — they are far more apt to occur between repetitive
parts than between those which may not be so exactly compared. On the hypothesis
sustained above, this repetition occurs in the fields embraced between the two similarly
disposed sets of branches into which one vein is divided. On the other suggested (and
apparently the only alternative, for the open interspaces on either side of the lower branch
of the upper externomedian stem seem to fix that nervule unquestionably) the repetition
would be between the whole of one set of branches of this vein, and one portion only of
the two of which the other set of that vein is composed. Other arguments may be
advanced from the character both of the nervules and of the cells formed by them and the
cross veins, which differ slightly from those in the field next above, a difference greater both in
extent and in nature than that existing between what we have considered the upper and
the lower externomedian fields. Further than this, the slight change of direction in the
course of the outer margin, resulting in a slight emargination of this border of the wing,
although apparently not found at all in living Ephemeridae, would be far more likely to
occur, does far more frequently occur in other insects, between two adjoining areas than
in the middle or other part of one.
Considering then the field under discussion as belonging to the internomedian area, we
must describe this as plainly of very unusual extent, and as filled as it never is in living
types with a large number of intercalary nervules.
It may be remarked that none of the many intercalaries in this wing arise indepen-
dently, and that they are not more abundant at the extreme outer edge of the wing, as
is frequently the case in modern types. The former feature is the more noteworthy, as
the independent origin of the intercalary veins in Ephemeridae would naturally be
taken as a mark of inferior organization; and yet it does not occur in this oldest member
of the group, nor yet in the jurassic species from Solenhofen, described on a previous
page; in this last, however, the edge of the wing is more broken by intercalaries than
the parts removed from it.
The length of the fragment preserved is 42 mm. and its greatest breadth, 25.5 mm.
The points in which this insect presents the most striking differences from modern
types, and upon which we would establish the genus Platephemera, are: the very similar
instead of distinctive structure of the framework of the two sets of branches of the
externomedian vein, and of the respective areas included between them; the excessive
number of the intercalaries in the area included between the lower set of externomedian
branches, and their attachment (in the apical half of the wing) to the upper of these
branches — from which the previously mentioned peculiar feature mainly depends; the
simplicity of the lower branch of the upper externomedian stem in an unusually ramose
wing; the unusual extent of the internomedian area and its rich supply of intercalaries ;
the density and polygonal form of the cells formed by the cross veins below the upper
externomedian vein; the emargination of the outer border; and finally the vast
dimensions of the wing.
INSECTS OF NEW BRUNSWICK. 11
If we look to other early types for species akin to this we shall find a whole group of
carboniferous insects with reticulated wings, to which this is evidently related. To this
belong those forms to which the generic names Dictyoneura and Breyeria have been given
m the old world, and Paolia and Haplophlebium in the new. Several new forms, as yet
unpublished, are known to me from the American carboniferous rocks. In all these
genera, but especially in Dictyoneura and Haplophlebium (which perhaps should not be
separated from each other), the wing is very much larger and slenderer (like a dragon-fly’s
wing) than the fragment of this devonian wing will allow us to suppose it to be. Ag in
these wings, the mediastinal vein is present, and usually runs into the marginal at some
distance from the tip of the wing, and the general relation of the principal veins is sim-
ilar in all; in none of the others, however, do we find so distinct a meshwork of sub-
ordinate veins, nor can they be resolved as here into sets depending from the two prin-
cipal branches of the externomedian vein. So that while a general similarity of structure
may be conceded, there is no occasion for considering the insects as closely affiliated.
The distinction between Platephemera and Gerephemera will be pointed out in treating
of the latter insect.
This sect comes from plant-bed No. 7 of Professor Hartt, and was the only inseet
found at that horizon.
In his “ Monograph on the Ephemeridae,”’ Rey. Mr. Eaton treats of the fossil species
which have been referred by.one and another author to this family, in a very summary
manner,’ asserting that: “ when a fossil comprises only a fragment, or even a complete wing
of an Ephemerid, it is hardly possible to determine the genus, and impossible to assert the
species. The utmost that can be learned from such a specimen is the approximate
relations of the insect. Neuration by itself is not sufficient to define the species or even
the genera of recent Ephemeridae.”
While we should not wish to deny the claims of Mr. Eaton to a profound knowledge of
the structure of the Ephemeridae, we venture to doubt if he would assert that there are
not features in the wing structure of some genera not foand in others, and which are,
therefore, in so far characteristic of those genera; and it might be worth while to consider
whether a careful study of such differences would not reveal some further differences
not discernible upon a cursory examination. One should be slow to hazard sweeping
statements of a negative character; and after all, it may be enquired, what more is desired,
or at least expected, than “the approximate relations of an insect” found fossil in the
older rocks. ‘That is precisely the aim of palaeontology the world over ; and those who
discourage efforts to discover these relations are simply bidding us close one of the vol-
umes of the book of life, quite as valuable as that they study.
In further comments in the same place, Mr. Eaton asserts of the insects of the Devo-
nian discussed in this paper, that ‘they have all been regarded as allies of the Ephemer-
1 Trans. Entom. Soc. Lond., 1871, 38-40. toward their authors. In the three pages he devotes to this
2 The manner in which Mr. Eaton has confounded names topic, Dyscritus is twice given as ‘ Dyscritius”; articulatus
in this section of his work is pretty fair evidence that he — twice as ‘‘ antiquorum ”; occidentalis once as “ Brownsoni ”’;
has not given the papers he quotes that close attention Bronsoni twice as “ Brownsoni’’; Dana twice as ‘ Scud-
which would entitle him to use the language of ridicule der’’; Scudder six times as ‘‘ Dawson.”
12 SCUDDER ON THE DEVONIAN
idae.” I do not know by whom; certainly not by myself, who first described
them. Platephemera he says, may possibly belong to the Ephemeridae, “but there
is nothing in the figures to make this certain.” The better figures published with
this should be sufficient proof that Platephemera belongs where I originally placed
it. The neuration agrees in all essential features with that family, and indeed,
considering the antiquity of the creature, shows marvellously little divergence from existing
types. And although Mr. Eaton has nothing to say of the wing structure of the Ephem-
eridae as a whole, in distinction from that of other neuropterous families, I can hardly
believe that any one who has studied it from the standpoint of the substantial unity of
wing structure in all insects, could fail to discover that the Ephemeridae have a special
development of wing neuration distinct from all others, permitting formulation, and to
which Platephemera conforms to so close an extent, that until we have further light by the
discovery of more complete remains we are amply justified in considering it as an antique
type of Ephemeridae.
IV. GEREPHEMERA SIMPLEX. PI. 1, figs. 8, 8a.
Gerephemera simplex Scudd., Geol. mag., v, 174-75 (1868).
Mentioned without name, as the fourth species, in my letter to Mr. Hartt: On the
devonian insects of New Brunswick, p. 1; Bailey, Obs. geol. south. New Br., 140; Amer.
journ. sc., (2) xxxrx, 357; Can. nat., (n. s.) 1, 235; Trans. Ent. Soc. Lond., (3) u, 117—
all in 1865.
In the specimen and reverse as first seen by me, scarcely more could be said of this
insect than the brief notice already published ; nothing appeared but a slight fragment of
the tip of a wing, and this would not have been dignified by a name had not the extreme
interest attaching to fossil insects from the horizon at which it occurred seemed to demand
it. The portion preserved was the upper half of the outer border with the extremities
of the veins impinging upon it, and two of the principal veins near the tip of the costal
margin ; these two veins are as usual in the Ephemeridae and probably represent the mar-
ginal and mediastinal (or scapular), and show that the latter reached the border scarcely
above the tip of the wing. °
Since my first examination, however, Mr. G. F. Matthew has worked out a considerable
part of the wing on one of the stones belonging to the St. John Society, which, though
very different in certain parts from what would have been anticipated from the portion
first exposed, bears out in a measure the statement that was hazarded concerning it,
although it proves that the generic name chosen was unfortunate. In this removal of
the stone from the surface of the wing, a fragment of the tip with its two veins was
flaked off; but as careful drawings had been taken of it, I have replaced the two lines
indicating the veins mentioned above upon the drawing made of the wing as it now
appears. This gives us indeed a much better clue to the probable form of the wing than
we could possibly otherwise have, for the considerable and constantly increasing diver-
gence of the upper and lower veins of the continuous portion of the fragment leave a
very strange eflect ; and, without the aid these two vein-tips furnish, leave the form of the
apex of the wing decidedly problematical.
INSECTS OF NEW BRUNSWICK. 113%
The wing is that of a very large insect, the fragment, which reaches neither base nor
tip, being 60 mm. long, and rendering it probable that the alar expanse was at least 150
mm. and more probably 175 mm. The apex of the wing was pointed, the costal and outer
margin probably meeting at a rounded angle of about 60°. The costal margin must have
been very strongly arched near the middle of the apical half, while the apical part of the
outer border is nearly straight. The wing was probably elongated, not very broadly
expanded in proportion to its length, as I at first presumed from not having counted on
such an extended development toward the base. — In the middle of the outer half of the
wing the width is about 23 mm., and from the course of the fragments of the two borders
it is probable that the width nowhere exceeded 25 mm. or about two-sevenths the length of
the wing. The fragment preserved contains considerably less than half the area of the wing
comprising most of the central portions. The whole anal area is lost as well as what is
apparently most or all of the internomedian area, extending far along the outer margin ;
the merest fragment of the costal border, 2-3 mm. long, is preserved, apparently about
the middle of the wing; the tip of the wing and outer half of the costal margin are
broken away, but a couple of veins at the tip are supplied, as already stated, from a piece
that was accidentally removed. This irregular fragment, extending diagonally across the
outer half of the wing, with a basal extension along the middle line, is traversed by.
principal nervures bound together by a net work of mostly very irregular and very feeble,
occasionally more regular and distinct cross veins, forming irregular, mostly longitudinal,
unequal, polygonal, rarely quadrangular cells. The veins may be grouped into an upper
set of parallel, equidistant and rather approximate, nearly straight, slightly upeurved
nervures, three or four in number, traceable only near the middle of the wing; and a lower
set of two, traceable throughout the apical half of the wing and extending nearly half way
from the middle to the base ; these are parallel, more distant, directed gently downward and
so divergent from the other set, and toward the apex curved considerably downward
Between the veins of the upper set the cross veins are infrequent and mostly straight,
forming quadrangular cells; while in the lower set they are more frequent and very
irregular, forming polygonal cells which, toward the apical margin, are very indistinct
from the feebleness of the cross veins.
The area formed at the apex of the wings by the divergence of the two sets of veins,
is filled by branches from the superior surface of the uppermost of the lower set of veins,
supporting a mesh of cross-veins.
The principal vein of the wing then—the only one which appears unquestionably to
support a number of branches —is the uppermost vein of the lower set. And since in
all palaeozoic imsects having true net-veined wings, one never has to pass beyond the
externomedian vein, in starting from the costal margin, to find the first extensively
branched vein, there can be little if any doubt that this should be considered as belong-
ing to that vein, and not to a lower one. The only difficulty about this interpretation is
that m the middle of the wing, there are above this vein no less than five equidistant and
almost equally distinct veins. The first of these, forming the margin, is the marginal
vein, and the next is the mediastinal. It is impossible to consider this marginal as the
mere thickening of the border, and the vein next removed from the border as the true
marginal vein, for both the margin itself would be too broad, and the marginal would
14 SCUDDER ON THE DEVONIAN
then be an elevated, and the mediastinal a depressed vein (see fig. 8a), which is never the
case in such insects. The nervure at the margin then is certainly the marginal, and
that next to itthe mediastinal vein. Only one vein, the scapular, can lie between the med-
iastinal and the externomedian, yet between our undoubted mediastinal and our presumed
externomedian there are no less than three veins to be disposed of.
Two of these lie in the depression following the mediastinal vein, while the third is
upon the side or the upper edge of the ascending portion of the area, which on the
opposite side of the depression lies at the level or above the level of the mediastinal vein (see
fig. 8a). It seems, therefore, highly probable that the two low-lying veins are branches
of a scapular vein which probably divides not much further toward the base ; and that
the third vein in question is the main externomedian stem, of which the branching
vein below is only a principal basal offshoot ; indeed the very fact that the branches of
this offshoot are thrown off from its superior surface leads to the presumption that it is
itself a branch from a vein above ; for, while an area between two branches of one vein
may not very infrequently be filled by superior offshoots from an inferior branch, it would
certainly be abnormal for a wide area to be filled by superior offshoots from an upper
branch, or even from a main stem itself. Presuming then upon the correctness of these
interpretations, the structural basis of the wing is as follows :
The marginal vein forms the border. The mediastinal vei is simple, and,
running nearly parallel to the marginal vein, probably terminates by impinging
upon it not very far from the middle of the outer half of the wing; from it run
frequent oblique delicate cross veins to the border. The scapular vein divides into
two longitudinal veins before the middle of the wing, probably considerably before
it; for even before the middle of the wing, and for as great a distance beyond
it as it can be traced, the two branches are exactly parallel to each other and
the mediastinal; all the longitudinal interspaces in the middle of this part of the
wing are equal ; the forks are connected with each other (and the upper with the medi-
astinal?) by ‘olorably frequent faint cross veins at right angles to the nervures ; and in
the middle of the wing and beyond it, at least for a short distance, have a gentle upward
direction, and even curve very slightly, almost imperceptibly, im the same direction ;
beyond however, they must curve strongly in the opposite direction, for the pair of detached
veins toward the tip of the wing have a decided downward direction, and these forks,
whether the same or not, must in that part of the wing have a similar direction ; probably
they are the same, and if so they show that they retain a similar distance apart until
they strike the costal margin, one just before or at the tip, the other a little earlier.
The externomedian vein must divide into two principal veins near the base of the wing ;
the upper branch follows closely the course of the veins above, and lies as far from the near-
est as the latter from the next; a little beyond the middle of the wing, however, this space
is slightly increased, and an intercalary vein, straight and similar to the others, but fainter,
takes its rise from an oblique bent cross vein; all the other cross veins in this interspace
and on either side of the intercalary vein, are like the others im the scapular interspaces,
and the whole area in which these straight and directly transverse cross veins lie, namely
that between the mediastinal and upper externomedian veins, forms a deeply sunken but
broad sulcus, the floor of which is nearly flat, and not V-shaped as usual in folds in this
INSECTS OF NEW BRUNSWICK. 15
part of the wing; probably it is otherwise further toward the base of the wing before
the division of the scapular vein, for the sides of the sulcus are tolerably steep, and
where only a simple vein occupied the sulcus, as is ordinarily the case in neuropterous
wings, the sulcus would be angular. The lower externomedian branch at the middle of
the wing is already as far from the upper branch as that from the upper scapular branch,
and continues to diverge from it with a very gentle curve, which increases apically, so
that it strikes the border with the same direction as the veins above; in the interspace
between these two branches runs a feeble intercalary vein, slightly irregular in direction,
sending off cross veins to one side and the other, forming longitudinal irregularly pentago-
nal cells; as the interspace widens these become more irregular, until at about two-thirds
the distance from the base of the wing to the tip of this branch, a superior offshoot from
this branch is emitted, having a course about midway between the two branches, but very
soon taking a somewhat zigzag direction, and assuming altogether the appearance of the
interealary, to which it sends frequent cross veins ; a short distance further on, or at about
the end of the second third of the wing, this emits a second offshoot, rather more prominent
and regular than the first, which parts rapidly from the branch, and, remaining near the
first, afterwards takes the apical direction of all the veins; it is bound to the upper off
shoot by frequent cross veins forming small polygonal cells; between it and the lower
externomedian vein is another very feeble intercalary arising from a cross vein, and
becoming, like its lateral offshoots, nearly imperceptible toward the outer margin ; as
indeed do all the other cross veins and intercalaries, so that they were nearly unobserved _
when the margin alone was exposed, and many of the cross veins fail to compass the
interspaces.
What can be seen of the internomedian vein is traceable slightly further toward the base
of the wing than the preceding, but as the wing is broken here, it is impossible to say
whether it is basally divided, and the portion visible is the upper branch, or whether
what we see is the whole vein; in the former case the upper branch, in the latter the
vein proper, runs sub-parallel to the lower externomedian, very slightly diverging from
it, and in the middle of the wing (where it is broken, but where its connections leave no
doubt whatever of its course) is as distant from it as the two externomedian branches
at the same point; a single, distinct, pretty regularly zigzag intercalary runs midway
between it and the lower externomedian branch, connected with tolerable regularity to
the veins on either side by alternating, straight, transverse or oblique cross veins, generally
forming rather regular, longitudinal, pentagonal cells, which become exceedingly irregular,
obscure and broken next the outer margin of the wing; just below the apical offshoot
of the lower externomedian branch it throws off an inferior branch, which is nearly
straight, and is apically as distant from it as is the next vein above; between these
branches is a very irregular intercalary vein, resembling in its connections the apical part
of the interealary above. The parts of the wing below this branch are wanting.
The relations of this insect to living types is far more obscure than in the case of Plat-
ephemera. It has certain resemblances to Platephemera and also to the carboniferous
Palaeodictyoptera to which it may possibly belong, but it is certain that the limits of the
Kphemeridae, even including Platephemera, are not elastic enough to admit it, and its diver-
gence from Dictyoneura and other net-veined insects of early time is so great that. its
16 ; SCUDDER ON THE DEVONIAN
reference there would seem to obscure its real isolation. In fact there seems to be not
only no family of insects into which it can be placed, but even no sub-order living or
extinct, into which it would naturally fall. There is no known insect in which five par-
allel and distant nervures follow the course of the costal margin, and of which only two
arise from the same root; and so far as my observations have gone, I have found no neu-
ropterous insect (to which of living groups this is plainly the most nearly allied), in which
the externomedian vein is the first extensively branched vein, and in which at the same
time, the upper branch of this vein is simple. In Ephemeridae (to which group one
would most naturally compare it from its general appearance), the externomedian vein, as
already stated, is always compound, and its upper stem is always forked. In this insect
on the contrary, the upper stem is simple (which is the more remarkable from the forked
character of the scapular, always simple in Ephemeridae) and the lower forked, its
branches being superior and herein differing remarkably from ordinary types.
Gerephemera then is not only further removed from modern Ephemeridae than is Plat-
ephemera, but can be even less closely affiliated with Platephemera than the latter with
modern Ephemeridae. It has, nevertheless, some distinctive points in common with it.
Such are its great size and the probable great expanse of the internomedian area, the dif-
fering character of the net-work above and below the uppermost externomedian branch,
the polygonal nature of the mesh-work caused by the cross-venation (in common with
many other old insects), and the somewhat uniform character of that network next to
and away from the border. In common with modern Ephemeridae, but in distinction
from most other insects, must be mentioned the common feature of intercalary nervures,
which here, as in Platephemera, are never free at their origin.
As points of special distinction from Platephemera may be mentioned the broad area
given to the ves above the externomedian vein, the forking of the scapular vein, its
course at the bottom of a deep and broad sulcus, the occurrence of a straight intercalary
in the scapular-externomedian interspace, the entire structure of the externomedian vein
(differing altogether from Platephemera) and the elongated slender form of the wing,
which resembles much more closely Dictyoneura and Haplophlebium.
From these latter genera again, to which we should perhaps consider it most closely
allied, this insect differs remarkably in the structure not only of the externomedian vein,
but in the wide extent of the wings above that vein, and the number of nervures which
fill it. It would appear also to differ in the character of the reticulation above the exter-
nomedian vein, a matter of less importance, but in which it agrees with Platephemera.
The difference in the frame work of the wing, however, is so great and so deep seated,
that there can be no doubt of at least its family distinction from all known types.
Whether or no it is worthy of being classed as subordinally distinct, I leave to future
discussion. But in allusion-to the apparent fact that the peculiar nature of its neuration
has not left its mark on modern types, I propose to call the family group in which it
should be placed Atocina.! It will be sufficiently distinguished from other ancient types
(as from modern) by the forking of the scapular vein, the course of the externo-
median, its distant removal from the costal margin, and its peculiar division.
This insect and Xenoneura come from the lowest of the Lancaster Shales which furnish
insect remains, called plant bed No. 2, by Professor Hartt.
. 1 From the Greek a@roxos-
INSECTS OF NEW BRUNSWICK. 7
V. Homoruetus Fossiuis. Pl. 1, figs. 1, 2.
Homothetus fossilis Scupp., Can. nat. geol., (n. s.) 1, 205, fig. 3 (1867);—JIs., Geol.
mag., Iv, 387, pl. 17, fig. 3 (1867); — Is., Daws., Acad. geol., 2d ed. 524—25, fig. 182 (1868);
— Is., Amer. nat., 1, 631, pl. 16, fig. 7 (1868);—In., Geol. mag., v, 172, 176 (1868); —
Pack., Guide ins., 77-78, pl. 1, fig. 7 (1869).
Mentioned without name, as the second species, in my letter to Mr. Hartt: On the devo-
nian insects of New Brunswick, p. 1; Bailey, Obs. south. New Br., 140; Amer. journ. sc.,
(2) xxxix, 357; Can. nat. geol., (n. s.) u, 235; Trans. ent. soc. Lond., (3) m1, 117,— all in
1865.
The wing representing this insect is the most complete of the devonian insects,
and would leave little to be desired were the base more complete; unfortunately the
reverse of this specimen was never found, or it might supply the missing parts. To
judge from the strong convexity of the costal margin, it is a front wing. It has the gen-
eral appearance of a Sialid of moderate size, and the form of the wing closely corresponds.
Although a fragment from the middle of the costal margin, and the whole outer half of
the lower margin with the apex are missing, the form of the wing can be estimated with
considerable probability. The costal margin is in general strongly convex, but is flat in
the middle third, the basal portion rapidly ascending, and the apical as rapidly descending ;
the apex was probably rounded, but a little produced, and the hinder border pretty uni-
formly and fully rounded, making the middle the broadest part of the wing, where the
breadth is probably contained about three times in the length; toward the base
the wing narrows rapidly, but at the extreme base more gradually above so as to be
almost pedunculate.
The marginal vein forms the border. The mediastinal vein is at first inclined slightly
downward, then ascends as gently, parting slightly from the marginal, but again in the mid-
dle of the wing commences most gradually to approach it, running toward the extremity of
the wing in close contact with it, but apparently not joining it until just before the apex
and beyond the preserved part of the fossil; throughout it partakes of the course of the
margin, but in a less exaggerated form, ascending slightly beyond the basal part, then
straight in the middle, gently arcuate apically ; it is connected with the margin, so far as
can be made out, by a single straight cross vein somewhat before the middle of the wing.
The scapular vein follows a similar course as the mediastinal, always about as far removed
from it as it is from the margin, excepting in the apical third; where its distance from the
mediastinal is slightly greater, so as to carry its termination, no doubt, exactly to the tip
of the wing; no cross veins can be seen to connect this vein with the mediastinal. No
other veins can be traced at the extreme base of the wing between the scapular and the
lower margin ; but at a short distance (about 2-3 mm.) from the base of the scapular vein,
and where its course turns from a descending to a longitudinal direction, a strong trans-
verse vein depends from it, directed a very little obliquely outward, and reaching from one-
third to one-half way to the lower margin of the wing; and from near and at the lower
extremity of this stout transverse vein, other longitudinal veins arise. The uppermost arises
from the middle of the lower half of the vein, at a distance from the scapular much greater
than the scapular from the costal margin at this point; at first it tends upward, parallel to
18 SCUDDER ON THE DEVONIAN
the costal margin, but very soon divides into two main stems. These two stems I take to
be: the upper the main scapular branch, of which the transverse vein is the base ; the lower
the externomedian vein, amalgamated with the former at the base, the two being com-
parable, as will be shown further on, to the same nervures in the Odonata. The connection
of the main scapular branch with the veins preserved in the field beyond cannot be
directly traced; but from the position of the latter the followmg account must be sub-
stantially correct. It runs in a nearly straight course to the middle of the apical half
of the wing, where from not following the arcuate course of the main scapular vein it has
diverged considerably from it; here its straight course suddenly terminates, but it passes
to the same point on the apical margin (just below or at the apex), by a gentle arcuation
subparallel to but distant from the main scapular vein, with which it appears to be
nowhere connected by cross veins. This main scapular branch emits two basal and
several apical inferior offshoots ; the apical offshoots are thrown off at wide angles, at sub-
equidistant intervals from the arcuate portion of the main branch, the first at its bend
being abruptly and widely forked not far from its origi, the others being simple and the
interspaces apparently free from cross veins. The basal offshoots are probably thrown off
(their origin is destroyed) at a little distance either side of the end of the basal third of
the wing; and, unlike the apical offshoots, certainly diverge at a very slight angle, and are
each similarly forked ; the first from the base is forked near its origin, and its upper fork is
again divided narrowly about half way to the margin, the general course of all the near-
vules of this basal offshoot being broadly arcuate. The other and outer basal offshoot soon
runs parallel to the main scapular branch, and is connected with it by a straight oblique
cross vein in the middle of the wing, where it forks; a short distance further on a piece is
broken from the middle of the wing, and the part beyond is displaced a little with refer-
ence to it, and apparently folded a little so as to obscure the exact course of these forks ;
which seem to become involved with the fork of the first of the apical offshoots, with
which, as well as with each other, they are connected by weak, inequidistant, straight, direct
or oblique cross veins.
The externomedian vein can be traced in all its parts, excepting an insignificant
portion of the tip of the outer of its branches; the main stem takes an arcuate
course, parallel to the basal offshoot of the main scapular branch, and terminates on
the lower margin just beyond the middle of the wing; half way from the transverse
basal vein to the margin it throws off an inferior branch, which soon becomes parallel to
it (and where it becomes so is connected by a cross vein to the vein below) and, by an
interpolated vei, which appears as a baseward continuation of this inferior branch, to a
bent cross vein in the same interspace, just beyond the middle of the basal half of the
wing; this cross vein is bent on the externomedian side of the interspace. The inter-
nomedian vein is compound, being broken at the lower extremity of the transverse basal
vein (before which it is not seen) into two compound branches, each throwing off a couple
of inferior curved offshoots to the margin, which are connected together by two sets of
cross veins,— one belonging only to the nervures of the upper branch, and in continuation
of the direct cross nervure in the externo-internomedian interspace ; the other set cover-
ing both branches and broken, each succeeding vein being carried successively further in,
the general course of the whole series being across the middle of the internomedian
INSECTS OF NEW BRUNSWICK. 19
area, sub-parallel to the outer series; one or two of the nervules in this area are briefly
forked next to the border. The anal veins cannot be seen.
The length of the fragment is 40 mm.; the probable length of the wing 42 mm.; its
breadth at the middle is 14 mm., reduced at base to 4 mm.
The most important vein in this wing is the scapular, whose branches occupy about
half the outer margin; the externomedian is comparatively unimportant, the imterno-
median occupying a larger area. The more striking features of the wing besides this are :
the origination of the principal scapular branch (from which all the scapular nervules
arise) and the externomedian vein from a common stem, having its source in a transverse
basal nervule; and the meagreness of the transverse neuration, which in no place shows
any sign of reticulation. The point first mentioned finds no parallel among insects excep-
ting in the Odonata, where it is almost precisely similar. There, as I attempted to show
many years ago in treating of the structure of the wings of recent and of fossil Neurop-
tera, the transverse vein termed the arculus in modern nomenclature should be considered
as made up of two veins meeting each other; for the upper of the two longi-
tudinal nervures which always originate from it belongs to the scapular vein, while the
lower belongs to the externomedian. Here, these two veins appear, at least, to be amal-
gamated at the base, but it is not impossible, and would indeed seem a@ priori more prob-
able, that they run side by side by side to the arculus, and are merely connate in appear-
ance from the preservation of the fossil. However, this may be, it would seem as if we
had in this peculiar structure the presence of an arculus as a forerunner at this early day
of the specialized type of Odonata; the main scapular branch arising from the arculus is
here, as in all normal modern Odonata, the principal vein of the wing,’ from which most
of the subsidiary branches arise; in these two points this fossil wing is distinctively and
decidedly Odonate in character; but if one looks further, one fails to find expected fea-
tures, now, and even in jurassic time, invariably corellated with those mentioned ; espec-
ially is a nodus to be sought in vain; the marginal vein runs without break to the tip of
the wing; for, although it cannot be followed from want of its perfect preservation, all
the neighboring veins can, and the number is similar throughout. So too the fine mesh-
work of Odonate wings is not only absent, but what cross neuration exists is confined to a
dozen or so straight veins for the whole wing. If, however, we consider this uppermost
offshoot from the arculus as the main branch of the scapular, and simply imagine the
arculus-structure removed, so as to bring this main branch directly and plainly dependant
from the scapular vein, one cannot fail to see how close the entire structure would be to
what we find in the Sialina. In the latter group indeed, there is no such separation
of apical and basal offshoots to the main scapular branch as here, but all the scapular
nervules take their rise, not from the vein itself, but as here from a principal scapular
branch, arising far back on the scapular vein; the general relations of the different
areas of the wing are also much the same in both, while the cross venation is very
similar. Here as there, the internomedian vein and its branches are of more impor-
tance —cover a wider area and bifurcate far more —than either the externomedian
vein on the one side, or the anal on the other. We have here, therefore, as I pointed out
1 Jt is termed vena principalis in the modern nomenclature not arise in the same way as in other Odonata, but has trans-
of students of Odonata. In some Calopterygidae it does ferred its origin to the scapular (median) itself.
20 SCUDDER ON THE DEVONIAN
when first calling attention to this fossil, the distinctive features of two tolerably well sep-
arated groups combined in one individual: certain features of the wing are distinctively
Sialid in character; others occur nowhere but in the Odonata. Yet these two groups
belong, one to the Neuroptera proper, the other to the Pseudoneuroptera, and we find
here the earliest proof of their common origin, in a wing whose type is more distinctly
synthetic than any other known. It seems also to bring new and unanticipated evi-
dence in support of my view of the homologies of the vein arising from the arculus in
Odonata.
It is plainly impossible for us to place this insect in any known family of Neuroptera.
It must be considered the first known member of a family, forming the connecting link
between the Neuroptera proper and Pseudoneuroptera, and will be evidence, in so far as
it goes, of a closer connection between these two groups, than between the latter and Or-
thoptera. For this family I would propose the name of Homothetidae, and would char-
acterize it as a family of Neuroptera (sensu /atior7), allied to Sialina, but in which the prin-
cipal scapular branch, instead of originating as in Sialina directly from the main stem,
usually near the middle of the wing, arises in common with or close beside the externo-
median vein, from an arculus near the base of the wing, connecting the scapular and inter-
nomedian veins; and in which, further, the basal and apical offshoots from this main
scapular stem are diflerentiated, instead of exhibiting a similar and uniform character.
This insect was found in plant bed No. 8, of Professor Hartt’s section, the highest in
the series as developed at the Lancaster locality.
VI. Dyscritus vetustus. Pl. 1, fig. 4.
Dyscritus vetustus Scupp., Geol. mag., v, 172, 176 (1868).
Mentioned without name, as probably identical with one of the other species, in my
letter to Professor Hartt: On the devonian insects of New Brunswick, p. 1; Bailey, Obs.
geol. south. New Br., 140; Amer. journ. sc., (2) xxxix, 357; Can. nat. geol., (n. s.) 1,
234; Trans. ent soc. Lond., (8) 1, 117 —all in 1865.
The insect briefly mentioned hitherto under this name has not before been figured, and
is the least important of the devonian wings. It consists of only a small fragment of a wing,
which shows a bit of the lower margin with three or four curved veins running toward it,
and connected rather uniformly with one another by cross veins forming quadrate cells. It is
plainly distinct from all the others, for the equivalent region in no case is similarly broken.
In Lithentomum Harttii the corresponding region is indeed not preserved, but the cross
veins in the neighboring parts, although weak, straight and direct as here, are so very
infrequent and irregular that we cannot presume the parts which are wanting below them
to be very different.
The veins preserved are four in number. The uppermost has two inferior branches
at short distances, of which only the extreme base of the outer is preserved, while the
inner is traceable throughout its extent; it parts from the main vein, which in the brief
portion preserved runs nearly parallel to the lower margin, at an ordinary angle and
passes in a regular arcuate downward course to the margin. The three veins below this
take a course sub-parallel to this, and are sub-equidistant ; the upper, at the base of the
INSECTS OF NEW BRUNSWICK. 21
part preserved, is a little nearer to the vein above, and to its first branch, than to the vein
below, and may possibly, not improbably, be a branch of the first vein mentioned, parting
from it further toward the base than the fracture of the specimen allows us to see;
the two veins below it seem to belong together; the bit of margin preserved, covering
only two interspaces, is slightly convex. The cross veins are weak, but tolerably uniform,
and either direct or slightly oblique, or occasionally a little irregular; they are nearly
equidistant as a general rule, but more frequent in the outer of the two interspaces touch-
ing the margin than elsewhere. The length of the fragment is 15 mm.
The fragment then consists of some curved veins striking the lower margin of a wing,
one at least of which is one of two or more inferior and, so far as can be seen, simple
branches of a principal longitudinal vein, whose course would make it terminate either at
the very tip of the wing, or, if it afterwards curved considerably, very near the extremity
of the lower margin. This principal vein probably belongs either to the scapular or exter-
nomedian, while the lower curved veins appear like branches of the internomedian vein.
The wing cannot therefore be referred to the vicinity of either Platephemera or Gereph-
emera, both on account of the relations to each other of the veins, and of the nature of
the reticulation, the latter being certainly polygonal in this region in both these genera ;
while the irregular course of the veins themselves in Platephemera and their considerable
apical divarication in Gerephemera constitute peculiarities not observed in the simple frag-
ment under discussion. So far as the course of the veins is concerned it can be much
better, and indeed very well, compared to Dictyoneura and its allies; but in all these
insects the interspaces are filled with a minute polygonal reticulation (wherever it is
preserved), which is such a characteristic feature that Dyscritus can by no possibility be
considered as very closely allied to them.
The neuration is altogether different in Xenoneura, finding nothing at all comparable
in this region. The longitudinality of the veins throughout Lithentomum seems to forbid
any close comparison with it. But in Homothetus we do find some points in common
with Dyscritus ; for while the reticulation is much more sparse in the former, there is a
certain regularity about it similar to what we have in the latter, while the curving of the
internomedian veins and their parallelism certainly resemble in a general way the same
features in Dyscritus. And if we presume the fragment of Dyscritus to be broken from
near the middle of the wing, we may see a not distant resemblance between the longitudinal
vein of Dyscritus and its two visibly connected branches, and the main branch of the scap-
ular vein in Homothetus ; while the upper, independent, curved vein of Dyscritus may be
taken perhaps for the externomedian vein, and the other two nervules for branches of the
internomedian vein. The resemblance is at least sufficient to make us believe we have
here a clue to its relationship ; while at the same time it differs so much from it that we
cannot associate the two even generically ; for if they are to be compared in this way at all,
the lower stem of the main scapular branch, as seen in Homothetus, must either have
become single and simple in Dyscritus, or it must have assumed the longitudinality and
mode of bifurcation of the upper stem.
There is nothing, however, in the fragment to show what the connection of the main
scapular branch may have been, and consequently nothing to prevent the reference of
this wing to the Sialina, where the relations of the veins would be the same. Judging
22 SCUDDER ON THE DEVONIAN
by comparison of what we have presumed to be similar parts, we may suppose this wing
to have been slightly larger than that of Homothetus fossilis, and its probable length not
far from 50 mm.
Whatever views are held of the special homologies of the veins, its right to generic dis-
tinction from Homothetus, to which it is most closely allied, must be conceded on the
ground of the greater simplicity of the neuration.
On account of the insignificance of the fragment, however, and the consequent impos-
sibility of any sure clue to its affinities, it would not have been worth while to confer
upon this wing a distinctive generic name, even granting its generic dissociation from all
others, were it not for the extreme interest attaching to any insect fragment of such high
antiquity.
The remains were found in plant bed No. 8, of Professor Hartt, the highest in the Lan-
caster series.
VIL Lirsenromum Hartt. Pi. 1, fig: 3.
I
Geol. mag., 1v, 387, pl. 17, fig. 4 (1867); Is., Daws., Acad. geol., 2d ed., 525, fig. 183
(1868) ; — Is., Amer. nat., 1, 630, pl. 16, fig. 6 [artii] (1868); — Is., Geol. mag. v, 172,
176 (1868); — Pacx., Guide ins., 77, 78, pl. 1, fig. 5 (1869).
Mentioned without name, as the third species, in my letter to Professor Hartt: On the
devonian insects of New Brunswick, p. 1; Bailey, Obs. geol. south. New Br., 140; Amer.
journ. sc., (2) xxxix, 357; Can. nat. geol., (n.s.) mu, 235; Trans. ent. soc. Lond., (3)
nm, 117 — all in 1865.
The relic to which this name has been given is the central upper portion of a wing in a
very fragmentary condition, but with a bit of the upper margin sufficient to enable one
to determine pretty positively the homologies of the vems. A fragment of Calamites has
unfortunately covered the base and lower part of the wing, but one or two of the veins
appear through it at what must be the very base of the wing, and help to determine its
nature. The fragment preserved is 36 mm. long, and 15.5 mm. broad; but the wing was
probably 55 mm. long, and perhaps 20 mm. broad, if one may judge from its general
appearance only ; it certainly represents a large insect.
The marginal vein forms the border. The mediastinal vein in the basal half of the
wing, and probably for some distance beyond, runs parallel to and at considerable dis-
tance from the border, with which it is connected by very weak oblique cross veins at
irregular intervals, which toward the base are considerably more oblique than further
outward; this weak construction of the costal margin renders it probable that the wing
was a hind one. The scapular vein in the basal quarter of the wing runs in very close
proximity to the mediastinal, then parts from it a little, and continues sub-parallel
to it, but a little nearer to it than the latter to the border; there appear to be no cross
nervules between these veins, but a slight and irregular tortuous longitudinal line like
amere puckering of the membrane; at some distance before the middle of the wing
this vein puts forth at a slight angle an inferior branch, which takes an arcuate course
sub-parallel to the vein, and is forked about as far beyond the middle of the wing,
apparently, as it arose anterior to it, both offshoots taking a longitudinal direction.
Lithentomum Harttii Scupp., Can. nat. geol., (n. s.) u1., 206, fig. 4 (1867); — Ib.,
INSECTS OF NEW BRUNSWICK. 23
_
The externomedian vein next the base of the wing is somewhat distant from the scap-
ular, is afterwards still further removed from it, and, in the middle half or more of
the wing, has a somewhat irregular, sinuous, longitudinal course, sub-parallel to the
scapular vein ; just before the end of the basal quarter it appears to have a straight ob-
lique inferior branch widely divergent from it; this is the vem next the lower margin
of the fragment; by its course it would appear to be a branch of the externomedian, but
it is not impossible that ‘it may be the internomedian vein ; whichever it is, it forks in the
middle of the second quarter of the wing, each fork being straight, simple and slightly
divergent. From the point where this inferior branch appears to be thrown off from the
externomedian vein, a superior branch appears also to be emitted ; it scarcely parts from
the vein and runs only a short distance along the interspace in a nearly straight line and
then dies out. Beyond this the externomedian vein throws off two, so far as can be seen
simple, branches, which are nearly straight, obliquely longitudinal, and part from the vein,
one at the middle of the wing, the other a short distance before it or just below the
branch of the scapular vein. The interspaces thus formed below the scapular vein are
very unequal and variable in breadth, giving the neuration a feeble uncertain appearance,
which is heightened by the irregular distribution of the cross veins, which, although nearly
always straight and transverse, sometimes bridge the narrowest, sometimes the broadest
parts of the interspaces ; they are exceedingly feeble and infrequent, the largest number
being found in the interspace between the scapular and externomedian veins, although
they may have been present in some of the areas where they cannot now be seen.
We shall seek in vain to accommodate this wing in any of the modern families of
Neuroptera. There are none excepting the Ephemeridae, the Embidae and perhaps the
Raphidiidae, in which the externomedian vein has such a preponderating importance, and
in none of these do the scapular or externomedian veins have a structure at all similar.
The structure of the scapular vein is somewhat similar to what we find in the Sialina, but
is widely different from it in the paucity of the offshoots of the scapular branch, in which
this wing is comparable to Xenoneura only. The structure of the externomedian vein is
also distantly similar to that of the Sialina, but in this family, in modern times at least,
the number of principal branches is always fewer, they never assume such a longitudinal
course, and never cover so great an area. We must, therefore, separate this group from
all known families, as one having its nearest affinities to Sialina in modern times, and
perchance to Xenoneuridae in the ancient ; and, considering it as in some sense a
precursor of the Sialina, may call it Cronicosialina.’ It should be looked upon as a family
of Neuroptera proper, of feeble neuration, in which the scapular vein emits a main branch
near the middle of the wing, which, running nearly parallel to the main vein, emits one
or at most two subsidiary, also longitudinal, simple offshoots. The externomedian vein,
tolerably distant from the former throughout, terminates near the tip of the wing, emitting
two or three branches at very unequal distances apart, all of them longitudinal and all but
the basal simple; the irregular interspaces thus formed are crossed at very unequal
distances by very feeble but straight cross veins. The lower veins are unknown.
This specimen is the most obscure of all the devonian insects and would have
been overlooked by any less keen-sighted observer than the late Professor C. F. Hartt.
1 Kpoytxds, old fashioned.
24 SCUDDER ON THE DEVONIAN
Very few persons seeing it would recognize it as an insect, yet it was the first insect found
by him which he recognized as such. It is on this account that I have selected this of
all the devonian wings to commemorate his discovery. It comes from plant-bed No. 8,
the highest in the series.
VIII. XeEnonEvURA ANTIQUORUM. PI. 1, figs. 5, 6, 7.
Xenoneura antiquorum Scupp., Can. nat. geol., (n. s.) m1, 206, fig. 5 (1867);—Ib.,
Geol. mag., tv, 387-88, pl. 17, fig. 5 (1867) ;—Is., Daws., Acad. geol., 2d ed., 525-26,
fig. 184 (1868);—Is., Amer. nat., 0, 163, fig. 1 (1868);—Is., Geol. mag., v, 174,
176 (1868).
Mentioned without name, as the fifth species, in my letter to Professor Hartt: On the
devonian insects of New Brunswick, p. 1; Bailey, Obs. geol. south. New Br., 140; Amer.
journ. sc., (2) xxxIx, 357; Can. nat. geol., (un. s.) 1, 235; Trans. ent. soc. Lond., (3) m1,
117,—all in 1865; see also Amer. journ. se., (2) xi, 271.
This fossil is represented by a fractured basal fragment of a wing, probably including a
little more than half of it. It is the smallest of the devonian insects, the wing having
probably measured only a little more than 18 mm. in length. It was long and slender,
broadest near the middle, and probably tapered to a rounded but somewhat produced
extremity, as in certain species of Dictyoneura. The costal border in the preserved por-
tion (probably a little more than half of the whole) is gently convex; probably beyond
the middle it is straight nearly to the tip, as represented on the plate; the portions of the
lower margin preserved indicate that this was more strongly arcuate but not full next the
base ; the direction of the margins and the course of the distant veins indicate, as stated,
a tapering tip, which was probably rounded, and in no way angular.
The marginal vein forms the border. The mediastinal vein is simple and gently arcu-
ate; at first it curves gently in the opposite sense to the margin, from which it is some-
what distant, and with which it is connected by faint, nearly transverse, or, away from the
base, gently oblique cross veins, not very closely approximated. At the beginning of the
second quarter of the wing, it is about as distant from the scapular vein as from the mar-
gin, and thereafter runs nearly parallel with the latter, but with a slightly stronger curve,
to a little past the middle of the wing; where it suddenly terminates in a cross vein bent at
a right angle, the upper half a little the longer, by which it is connected with the veins
on either side of it; a somewhat similar termination of this vein is shown in Goldenberg’s
figure of Dictyoneura libelluloides.
The scapular vein is one of the most important in the wing. In the part of the wing
preserved it is very straight. Next to the base it is in exceedingly close proximity to the
mediastinal, diverging gently from it by the curve of the latter at about the end of the
basal fifth of the fragment, until it is as distant from the mediastinal as the mediastinal is
from the margin, and again gradually approaches it; it is about equidistant from the bor-
der at the end of the fragment, and where the mediastinal diverges from it; beyond the
tip of the mediastinal, it probably continues its straight course at first, or even trends
slightly upward to take the place of the mediastinal vein, until it is in close proximity to
the border, and then follows nearly the curve of the latter, gradually approaching it until
INSECTS OF NEW BRUNSWICK. 25
near the tip; but the track of the vein beyond the tip of the mediastinal is of course
conjectural.
At a little beyond the end of the first third of the wing, it emits at a considerable
angle an inferior branch, which, at about half way from its base to the tip of the
mediastinal, or at just about the middle of the wing, begins to curve, so as to assume
a direction parallel to the main vein, and at the same time forks; this whole branch
is very faint, and is almost effaced at the fork next which the wing is fractured.
To judge from the course of the other veins, one and only one of the offshoots of
that branch is again simply forked; which, it would be impossible to say; but the
upper offshoot (with its upper fork, if it divides) most probably runs sub-parallel to, and at
considerable distance from, the main scapular vein, very gradually approaching it,
especially apically where it curves downward, until it terminates, probably at the
very apex of the wing. The sketch in fig. 5, however, represents the lower branch
as forked, at a little past its middle ; there can be little doubt that the branches impinge
upon the margin at about the distance apart that is indicated, or at a little less distance
apart than the branches are seen to abut on the fragment of the lower margin which is
preserved. The only question is concerning the basal attachment of the vein which
strikes the border the second below the scapular vein itself ; if not attached as represented
in the plate, it originates from the branch of the scapular vein at probably a little less
than half the distance between its first forking and the apex.
The vein lying next below this, and which appears on the plate (fig. 5) to have
a double attachment to the scapular vein, seems to be the externomedian vein. That
its basal half, like that of the preserved portion of the scapular branch, is very faintly
indicated on the stone seems due to some accident of preservation, for its apical
branching part is distinct. It appears to originate from the scapular vein at a little
more than half way from the base of the wing to the origin of the scapular branch ;
its basal portion must therefore be either connate with the scapular vein, or be so
closely connected with it by the accidents of preservation as to be inseparable from it. It
diverges from the scapular at the same angle as the scapular branch, is very soon
connected with the adjacent vein below by a short cross nervule of unusual distinctness,
bends outward a little beyond this cross nervule, and at an equal distance beyond is
again bent to its former course; here it is connected to the scapular vein by a faint
oblique cross vein, which is almost exactly continuous with the subsequent part of the
externomedian, and reaches the scapular vein directly above the distinct cross vein
above mentioned ; thus giving the mediastinal vein the appearance of having a double base,
and enclosing between its basal attachments an elongated subrhomboidal cell. Beyond
these basal divisions the vein runs in a straight oblique course to just before the
centre of the wing, where it forks widely, the upper branch being simple and excepting
for a gentle arcuation at its base nearly straight and a little more longitudinal than
the main stem; the lower branch nearly continues the direction of the main stem,
and at a little less than half way to the margin forks, again widely, but symmetrically,
the offshoot being simple, the upper again forked half way to the margin, the final
upper fork being nearly horizontal and striking the border in the middle of the apical
half of the wing.
26 SCUDDER ON THE DEVONIAN
The internomedian vein seems to be represented by two widely separated simple veins,
the course of which, so far as they can be traced, would seem to indicate that they have a
common origin very near or at the base of the wing, directly below the common stem of
the scapular and externomedian veins. The upper branch first comes into view directly
beneath this stem, running parallel to it, and not very far away from it, but at double the
distance from it that the mediastinal vein is at this point, which is before the end of the
basal quarter of the wing; when the mediastinal vein curves upward from the scapular,
this curves downward in about the same degree, until it reaches the distinct short cross
vein which unites it, as before stated, to the externomedian vein; here it bends downward,
becomes more distinct than any of the nervules between it and the main scapular vein
(previously it had been rather inconspicuous), and runs in a nearly direct faintly arcuate
course to the middle of the lower margin of the wing, gently diverging throughout from
o> 5
the externomedian vein and its nearer branches. The lower branch is first seen in the
very centre of the basal third of the wing, from which point it passes in a nearly straight
course almost parallel to the distincter portion of the other branch, and is as heavily
marked. The anal vein is perhaps simple, running at first downward and curving outward,
subparallel to but distant from the lower basal margin, becoming just before the middle of
its regular course straight and distinct, when it diverges slightly from the border of the wing,
and inclines distinctly although not greatly toward the lower internomedian branch, con-
tinuing in this course until it reaches a distinct oblique cross vein which unites it to the
latter in the middle of the basal half of the wing; here it bends abruptly downward at
right angles to the cross vein, and runs doubtless into the margin; the cross vein is nearly
transverse to the interspace in which it lies, and is about parallel to, and is of the same
length as, the upper limb of the bent cross vein in which the mediastinal vein terminates.
Next the basal margin of the wing is a brief simple shoot directed almost vertically
downward, which may be an inferior basal branch of the anal vem. The other lines
between the internomedian veins and the margin, seen in fig. 5, represent merely fractures
in the stone.
Besides the three distinct cross veins mentioned,—(1) that in which the mediastinal
vein terminates, (2) that between the upper internomedian branch and the externomedian
vein; and (3) that connecting the lower mternomedian branch and the anal vein —
and the weak cross veins visible in the interspace above the mediastinal vein (of which
only those in the basal half are represented in fig. 5), there are in various parts of
the wing exceedingly indistinct, very weak, very closely approximated, but unequally
distant cross veins, transverse or nearly transverse to the interspaces, sometimes
curved but never showing any tendency to unite so as to form any kind of reticulation ;
it is probable that they exist throughout the wing, or at least below the main scapular
vein; they are most distinct in the externomedian interspaces, and in those on either
side of the internomedian branches, especially next the nervules themselves, as
may be seen in fig. 5 on either side of the lower internomedian branch, where they
are more distinct than in any other part of the wing; this mode of fracturing the
interspaces, rather than reticulation, is the more marked from the exceedingly open and
distant neuration.
-INSECTS OF NEW BRUNSWICK. 27
=
Besides these normal features of neuration there are some other characteristics in this
wing, purposely left for description to the end. These are some peculiar marks near the
base of the wing, originally described by me as “ apparently independent veinlets,
forming portions of concentric rings.” These ridged rings overlie the probable
position, as here described, of the basal part of the lower internomedian branch, and
lie just beneath the initial divergence of the mediastinal and scapular veins; they
consist of an alternate series of broken concentric grooves and furrows, some faint,
others in places very distinct, extending over nearly half the width of the wing at
this point, i. e., almost reaching the upper branch of the internomedian vein on the
one hand and the anal vein on the other; the most distinct are three short, shallow
furrows, with very rounded low ridges between them upon the upper side, next the
upper branch of the internomedian vein; the outer of these is distant from the extreme
mark upon the opposite side about 2.2 mm.; the central region, rather less than a milli-
meter in diameter, presents a slightly elevated, irregular, granulated surface, like many of
the rougher parts of the stone outside the wing, and has no peculiar structure ; the whole
lies directly upon what would be the continuation of the lower branch of the interno-
median vein were it present, and apparently obliterates it; one of the outermost
grooves, an extremely faint and delicate one, crosses the anal vein at a very sharp
angle. This peculiar feature in the wing I formerly compared to the stridulating
apparatus of the Locustariae, and suggested that this insect thereby united characteristics
now found only separated, some in Neuroptera and some in Orthoptera. Several
naturalists, e. g., Darwin, Dawson, and Packard, followmg my suggestion, have used this
as a striking illustration of synthetic character in early types of animals, and have
pictured this as the earliest example of stridulation. I am now obliged to confess
that I have led them altogether astray; this peculiarity, although bearing a strong
superficial resemblance to the stridulating organs in Locustariae, having, I believe,
nothing whatever to do with the wing itself. The stridulating apparatus of Or-
thoptera, whenever it concerns the wings, is invariably based on a modification of
existing veins; in its simplest forms it is the mere thickening of certain nervules,
and furnishing them with a sharp or rough edge. In the original appearance of
a stridulating organ in insects, we should look for some such simple form as the
initial stage. But in this fossil wing we find nothing of the sort; no one of the
concentric lmes or grooves are continuous with any of the neighboring veins. The
only appearances which favor such a view are: (1) the openness of the neuration at
this point, which allows this great scar to lie at the base of the wing without disturbing
more than one of the veins; (2) the curve of the anal vein, which has the appearance
of passing around this obstruction ; but the course of which is in keeping with the curve
of the lower margin of the wing, equally explaining it; and (3) the curve of the cross
veins in the neighborhood of the scar, as seen on either side of the lower internomedian
branch in fig. 5; which veins, however, when narrowly examined, are seen to form
angles with the more prominent concentric grooves and ridges. These ridges, too,
are not of a form suitable for the production of sound, the depressions or elevations
being extremely smooth and gradual; they are also of very unequal size and thickness ;
they do not occur in the anal area, as in all Locustariae, but in the internomedian ;
28 SCUDDER ON THE DEVONIAN
and they have just sufficient regularity to render it most probable that the central,
irrecular, rough, and slightly elevated mass is either the relic of a foreign substance,
which has fallen upon the wing, subsequent pressure upon which, when the membrane of
the wing formed, so to speak, a part of the floor upon which it lay, has caused the mud and
membrane together to assume the present appearance; or, that we chance here to have
stumbled on a wing which, in the nymph condition, has met with some accident, producing
in the imago a blister-like distortion, such as those figured by Mocquerys, as suggested to
me by Dr. Hagen, in the elytra of Carabus monilis, Mesonphalia gibba, Timarcha
rugosa, and as must have been observed in the veined wings of insects of the other
orders by all entomologists. This last supposition would better account for the greater
prominences of the peculiar markings around one part of the scar than elsewhere, and
for the apparent partial conformity of the cross venation to the contour of the scar.
Whichever way it be considered, it does not now appear to me reasonable to maintain my
former hypothesis of a stridulating organ, to which nevertheless there is, as stated,
a remarkable general resemblance. That such a stridulating organ would be a great
anomaly no one can question, and the proposition should not be maintained in the
face of the objections which careful and prolonged study and comparison elicit.
But putting aside its extraneous features, we may discuss the affinities of this insect on
the basis of the unquestionable characteristics of its neuration, and shall find in these enough
to excite our interest and even to perplex us. In its general features the wing is plainly
neuropterous. It would appear from the strength of the margin to be an upper wing,
and in its form to resemble that of many true Neuroptera; its sweeping forking branches
with direct transverse cross venation attest the same proposition, but when we come to
compare it with known types, we shall find it extremely difficult to place it. Its very
open neuration is one general feature which is peculiar; the presence of two or three
very prominent cross veins, with an extreme multitude of feeble cross veins never
breaking up into an irregular reticulation, is certainly strange ; so is the termination of
the mediastinal vein, and still more the entire simplicity and extreme separation of the
internomedian veins, occupying so large an area of the wing without a fork, and
connected in so unusual a manner with the veins on either side; the apparent absolute
amalgamation of the bases of the scapular and externomedian veins in such early insects
is very unexpected ;—and all combine to form an ensemble which is the odder for the
general simplicity of the neuration. It would be hard to say which is the most prominent
vein in the wing; the scapular, externomedian and internomedian occupy about equal
areas, and while the two former branch more than the latter, their nervules are compar-
atively much feebler.
In the openness and sparseness of the neuration and in the paucity (but not
at all in the position) of the principal cross veins, it bears a certain resemblance to
the Coniopterygidae and to no other neuropterous family; but the differences are far
greater and more important than the resemblances and scarcely need be stated.
There are also some features which give it a sialidan appearance; if we suppose, as we
may, that the second nervule reaching the margin below the main scapular vein arises
from the main scapular branch, we shall have a condition of the scapular vein very like
that of the Sialina, excepting in the slight number of offshoots from its branch, which
would be very abnormal; in the near or actual amalgamation of the externomedian
INSECTS OF NEW BRUNSWICK. 29
with the scapular vein, there is also nothing to separate it from the Sialina, excepting their
amalgamation for so great a distance; but the structure of all the other veins and the
peculiarities of the cross venation is very different from the same points in the Sialina.
In the course of most of the main veins and their mode of branching, it has some
resemblance to the Raphidiidae, but it has no affinity whatever with that group in the
peculiar directions of the nervules and their connection by distant cross veins, so as to
form large polygonal cells, which is one of the most striking of the characteristic features
of Raphidiidae.
The apical two-thirds of the wing (excluding, therefore, the attachments of most of the
veins) are in sufficient harmony with these parts in the carboniferous Dictyoneurae to
presume, at first, that the wing will fall in the ancient order of Palaeodictyoptera. As yet,
however, we know too little of the extent and even of the peculiar characteristics of this
group to say whether or not the structure of the base of the wing will allow its location
here ; certainly it will not admit its being placed in the same family with the genus Dictyo-
neura; and at present this is, perhaps, all that we can say until the structure of all the
ancient wings shall have been most carefully studied.
It is in large measure in those points of structure which Dictyoneura shares with the
Ephemeridae, that Xenoneura is comparable to the former, and we therefore see in this
wing ephemeridan, sialidan, raphidian and coniopterygidan features, combined with others
peculiar to itself. Whatever the closest affinities of the wing may prove to be, it must
certainly, by its combination of characters, bridge over the gulf now separating the wing
features of Neuroptera and Pseudoneuroptera ; and these various considerations assure us
of its family distinction from any known ancient or modern type of Neuroptera, and of
the propriety of applying to the group it represents the family name of Xenoneuridae.
This species, with Gerephemera simplex, came from the lowest insect-producing beds of
the Lancaster Shales, called plant bed No. 2, by Professor Hartt.
IX. GENERAL SUMMARY.
It only remains to sum up the results of this re-examination of the devonian insects,
and especially to discuss their relation to later or now existing types. This may best be
done by a separate consideration of the following points: 5
1. There is nothing in the structure of these earliest known insects to interfere with a
former conclusion ! that the general type of wing structure has remained unaltered from
the earliest times. Three of these six insects (Gerephemera, Homothetus and Xenoneura)
have been shown to possess a very peculiar neuration, dissimilar from both carboniferous and
modern types. As will also be shown under the tenth head, the dissimilarity of structure
of all the devonian insects is much greater than would be anticipated; yet all the features
of neuration can be brought into perfect harmony with the system laid down by Heer.
2. These earliest insects were hexapods, and as far as the record goes preceded in time
both arachnids and myriapods. This is shown only by the wings, which in all known
insects belong only to hexapods, and in the nature of things prove the earlier apparition
of that group. This, however, is so improbable on any hypothesis, that we must conclude
the record to be defective.
1The early types of insects. Mem. Bost. Soc. Nat. Hist., III, 21.
30 SCUDDER ON THE DEVONIAN
3. They were all lower Heterometabola. As wings are the only parts preserved, we
cannot tell from the remains themselves whether they belong to sucking or to biting
insects; for, as was shown in the essay already referred to, this pomt must be considered
undetermined concerning many of the oldest insects until more complete remains are
discovered. |
They are all allied or belong to the Neuroptera, using the word in its widest sense. At
least two of the genera (Platephemera and Gerephemera) must be considered as having a
closer relationship to Pseudoneuroptera than to Neuroptera proper, and as having indeed
no special affinity to the true Neuroptera other than is found in Palaeodictyoptera. wo
others (Lithentomum and Xenoneura), on the contrary, are plainly more nearly related to
the true Neuroptera than to the Pseudoneuroptera, and also show no special affinity to
true Neuroptera other than is found in Palaeodictyoptera. A fifth (Homothetus), which
has comparatively little in common with the Palaeodictyoptera, is perhaps more nearly
related to the true Neuroptera than to the Pseudoneuroptera, although its pseudo-
neuropterous characters are of a striking nature. Of the sixth (Dyscritus) the remains
are far too imperfect to judge clearly, but the choice lies rather with the Pseudoneuroptera
or with Homothetus. The devonian insects are then about equally divided in structural
features between Neuroptera proper and Pseudoneuroptera, and none exhibit any special
orthopterous, hemipterous or coleopterous characteristics.
4. Nearly all are synthetic types of a comparatively narrow range. This has been
stated in substance in the preceding paragraph, but may receive additional illustration
here. Thus Platephemera may be looked upon as an ephemerid with an odonate retic-
ulation; Homothetus might be designated as a sialid with an odonate structure of the
main branch of the scapular vein; and under each of the species will be found detailed
accounts of any combination of characters which it possesses.
5. Nearly all bear marks of affinity to the carboniferous Palaeodictyoptera, either in
the reticulated surface of the wing, its longitudinal neuration, or both. But besides this
there are some, such as Gerephemera and Xenoneura, in which the resemblance is marked.
Most of the species, however, even including the two mentioned, show palaeodictyopteran
characters only on what might be called the neuropterous side; and their divergence
from the carboniferous Palaeodictyoptera is so great that they can scarcely be placed
directly with the mass of palaecozoic insects, where we find a very common type of wing
structure, into which the neuration of devonian insects only partially fits. For:
6. On the other hand, they are often of more and not less complicated structure than
most Palaeodictyoptera. This is true of the three genera mentioned above with peculiar
neuration, but not necessarily of the others, and it especially true when they are com-
pared with the genus Dictyoneura and its immediate allies. There are other Palaeodicty-
optera in the carboniferous period with more complicated neuration than Dictyoneura, but
these three devonian insects apparently surpass them, as well as very nearly all other
carboniferous insects. Furthermore :
7. With the exception of the general statement under the fifth head, they bear
little special relation to carboniferous forms, having a distinct facies of their own. This
is very striking ; it would certainly not be possible to collect six wings in one locality
in the carboniferous rocks, which would not prove, by their affinity with those already
INSECTS OF NEW BRUNSWICK. 51
known, the carboniferous age of the deposit. Yet we find in this devonian locality
not a single one of the Palaeoblattariae or anything resembling them; and more than
half the known insects of the carboniferous period belong to that type. The next
most prevailing carboniferous type is Dictyoneura and its near allies, with their
reticulated wings. Gerephemera only, of all the devonian insects, shows any real and
close affinity with them; and even here the details of the wing structure, as shown
above, are very different. The apical half of the wing of Xenoneura (as I have
supposed it to be formed) also bears a striking resemblance to the dictyoneuran wing ;
but the base, which is preserved, and where the more important features lie, is totally
different. The only other wing which shows particular resemblance to any carboniferous
form (we must omit Dyscritus from this consideration, as being too imperfect to
be of any value) is Platephemera, where we find a certain general resemblance
to Ephemerites Riickerti Gein., and Acridites priscus Andr., but this is simply in the
form of the wing and the general course of the nervules ; when we examine the details
of the neuration more closely we find it altogether different, and the reticulation
of the wing polygonal and not quadrate as in the carboniferous types.’ In this
respect indeed, Platephemera differs not only from all modern Ephemeridae, but
also from those of other geological periods. Another prevailing carboniferous type, the
Termitina, is altogether absent from the devonian. Half a dozen wings, therefore, from
rocks known to be either devonian or carboniferous, would probably establish their
age.
8. The devonian insects were of great size, had membranous wings, and were probably
aquatic in early life. The last statement is simply inferred from the fact that all the
modern types most nearly allied to them are now aquatic. As to the first, some state-
ments have already been made; their expanse of wing probably varied from 40 to 175
mm. and averaged 107 mm. Xenoneura was much smaller than any of the others, its
expanse not exceeding four centimetres, while the probable expanse of all the rest was
generally more than a decimeter, only Homothetus fallmg below this figure. Indeed if
Xenoneura be omitted, the average expanse of wing was 121 mm., an expanse which
-might well be compared to that of the Aeschnidae, the largest, as a group, of living
Odonata. There is no trace of coriaceous structure in any of the wings, nor in any are
there thickened and approximate nervules — one stage of the approach to a coriaceous
texture.
9. Some of the devonian insects are plainly precursors of existing forms, while others
seem to have left no trace. The best examples of the former are Platephemera, an
aberrant form of an existing family ; and Homothetus, which, while totally different in the
combination of its characters from anything known among living or fossil insects, is the
only palaeozoic insect possessing that peculiar arrangement of veins found at the base of
the wings in Odonata, typified by the arculus, a structure previously known only as early as
1Dr. H. B. Geinitz has kindly re-examined Ephemerites 2 The Dictyoneurae and their allies, as may be inferred,
Riickerti at my request, and states that the reticulation isin are considered as belonging to the Palaeodictyoptera,
general tetragonal, but that at the extreme outer margin although their ephemeridan affinities are not disregarded.
the cells appear in a few places to be elliptical five- or six-
sided.
32 SCUDDER ON THE DEVONIAN
the jurassic. Examples of the latter are Gerephemera, which has a multiplicity of simple
parallel veins, next the costal margin of the wing, such as no other insect, ancient or
modern, is known to possess ; and Xenoneura, where the relationship of the internomedian
branches to each other and to the rest of the wing is altogether abnormal. If too, the
concentric ridges, formerly interpreted by me as possibly representing a stridulating organ,
should eventually be proved an actual part of the wing, we should have here a structure
which has never since been repeated even in any modified form.
10. They show a remarkable variety of structure, indicating an abundance of insect life
at that epoch. This is the more noticeable from their belonging to a single type of forms,
as stated under the seventh head, where we have seen that their neuration does not
accord with the commoner type of wing structure found in palaeozoic insects.' These
six wings exhibit a diversity of neuration quite as great as is found among the
hundred or more species of the carboniferous epoch ; in some, such as Platephemera, the
structure is very simple; in others, ike Homothetus and Xenoneura, it is somewhat
complicated ; some of the wings, as Platephemera and Gerephemera, are reticulated ; the
others possess only transverse cross veins more or less distinct and direct. | No two wings
can be referred to the same family, unless Dyscritus belongs with Homothetus — a point
which cannot be determined from the great imperfection of the former. This compels us
to admit the strong probability of an abundant insect fauna at that epoch ; although many
palaeozoic localities can boast a greater diversity of insect types, if we look upon their
general structure as developed in after ages, not one in the world has produced wings
exhibiting in themselves a wider diversity of neuration ; for the neuration of the Palaeo-
dictyoptera is not more essentially distinct from that of the Palaeoblattariae or of the
ancient Termitina, than that of Platephemera or Gerephemera on the one hand is from
that of Homothetus or of Xenoneura on the other. Unconsciously, perhaps, we allow our
knowledge of existing types and their past history to modify our appreciation of
distinctions between ancient forms. For while we can plainly see in the Palaeoblattariae
the progenitors of living insects of one order, and in other ancient types the ancestors of
living representatives of another order ; were we unfamiliar with the divergence of these
orders in modern times, we should not think of separating ordinally their ancestors of the
carboniferous epoch. It may easily be seen, then, how it is possible to find in these
devonian insects — all Neuroptera or neuropterous Palaeodictyoptera — a diversity of wing
structure greater than is found in the carboniferous representatives of the modern
Neuroptera, Orthoptera and Hemiptera.
11. The devonian insects also differ remarkably from all other known types, ancient or
modern; and some of them appear to be even more complicated than their nearest living
allies. With the exception of Platephemera, not one of them can be referred to any
family of insects previously known, living or fossil; and even Platephemera, as shown
above, differs strikingly from all other members of the family in which it is placed, both
in general neuration and in reticulation ; to a greater degree even than the most aberrant
genera of that family do from the normal type. This same genus is also more compli-
cated in wing structure than its modern allies; the reticulation of the wing in certain
1 Cf. Mem. Bost. Soc. Nat. Hist., III, 19, note 1. -
INSECTS OF NEW BRUNSWICK. 38
structurally defined areas is polygonal and tolerably regular, instead of being simply quad-
rate; while the intercalated veins are all connected at their base, instead of being free.
Xenoneura also, as compared with modern Sialina, shows what should perhaps be deemed
a higher (or at least a later) type of structure, in the amalgamation of the externomedian
and scapular veins for a long distance from the base, and in the peculiar structure and
lateral attachments of the internomedian veins; in the minuter and feebler cross
venation, however, it has an opposite character.
12. We appear, therefore, to be no nearer the beginning of things in the devonian
epoch, than in the carboniferous, so far as either greater unity or simplicity of structure is
concerned; and these earlier forms cannot be used to any better advantage than the
carboniferous types in support of ahy special theory of the origin of insects. All such
theories have required some Zoaea, Leptus, Campodea, or other simple wingless form as
the foundation point; and this ancestral form, according to Haeckel at least, must be
looked for above the silurian rocks. Yet we have in the devonian no traces whatever of
such forms, but on the contrary, as far down as the middle of this period, winged insects
with rather highly differentiated structure, which, taken together, can be considered
lower than the mass of the upper carboniferous insects, only by the absence of the very
few Hemiptera and Coleoptera which the latter can boast. Remove those few insects
from consideration (or simply leave out of mind their future development to very
distinct types), and the middle devonian insects would not suffer in the comparison with
those of the upper carboniferous, either in complication or in diversity of structure.
Furthermore, they show no sort of approach toward either of the lower wingless forms,
hypothetically looked upon as the ancestors of tracheate Articulata.
15. Finally, while there are some forms which, to some degree, bear out
expectations based on the general derivative hypothesis of structural development,
there are quite as many which are altogether unexpected, and cannot be explained by
that theory, without involving suppositions for which no facts can at present be adduced.
Palephemera and Gerephemera are unquestionably insects of a very low organization
related to the existing may-flies, which are well known to be of inferior structure, as com-
pared with other living insects; these may-flies are indeed among the most degraded of the
sub-order to which they belong, itself one of the very lowest sub-orders. Dyseritus too
may be of similar degradation, although its resemblance to Homothetus leaves it
altogether uncertain. But no one of these exhibits any inferiority of structure when
compared with its nearest allies in the later carboniferous rocks, and they are all higher
than some which might be named. While of the remaining species it can be con-
fidentially asserted that they are higher in structure than most of the carboniferous
types, and exhibit syntheses of character differmeg from theirs. It is quite as if we
were on two distinct lines of descent when we study the devonian and the carbon-
iferous insects; they have little in common, and each its peculiar comprehensive types.
Judging from this point of view, it would be impossible to say that the devonian
insects showed either a broader synthesis or a ruder type than the carboniferous. This
of course may be, and in all probability is, because our knowledge of carboniferous
insects is, in comparison, so much more extensive; but, judging simply by the
facts at hand, it appears that the carboniferous insects carry us back both to the
34 SCUDDER ON THE DEVONIAN
more simple and to the more generalized forms. We have nothing in the devonian
so simple as Euephemerites, nothing so comprehensive as Eugereon, nothing at once
so simple and comprehensive as Dictyoneura. On the derivative hypothesis, we must
presume, from our present knowledge of devonian insects, that the Palaeodictyoptera
of the carboniferous are already, in that epoch, an old and persistent embryonic type
(as the living Ephemeridae may be considered to-day, on a narrower but more
lengthened scale); that some other insects of carboniferous times, together with most
of those of the devonian, descended from a common stock in the lower devonian
or silurian period; and that the union of these with the Palaeodictyoptera was even
further removed from us in time ;— carrying back the origin of winged insects to
a far remoter antiquity than has ever been ascribed to them; and necessitating a faith
in the derivative hypothesis, which a study of the records preserved in the rocks could
never alone afford; for no evidence can be adduced in its favor based only on
such investigations. The profound voids in our knowledge of the earliest history of
insects, to which allusion was made at the close of my paper on the Karly types of
insects, are thus shown to be even greater and more obscure than had been presumed.
But I should hesitate to close this summary without expressing the conviction that some
such earlier unknown comprehensive types as are indicated above did exist and should be
sought.
X. Nore on THE GeEoLoGIcAL RELATIONS oF THE Fossit INSECTS FROM THE DEvo-
NIAN OF New Brunswick. By Principal Dawson, LL.D., F.R.S., &c.
The beds affording these remains occur in the vicinity of the city of St. John, New
Brunswick, and are well exposed on the shores of Courtney Bay, on the east side of the
city, and at Duck Cove, Lancaster, on its western side. They consist of sandstones,
shales, and conglomerates, having an aggregate thickness of about 7,500 feet,’ as shown
in the following generalized section, in ascending order :—
1. Bloomsbury Conglomerate — Reddish-gray conglomerate with interstratified hard
red shale. 500 feet.
2. Dadoxylon Sandstone —(Lower part of Little River Group in my Acadian Geol-
ogy). Gray sandstone and grit, with beds of gray and black graphitic shale — Fossil plants,
ete. 2,800 feet.
3. Cordaite Shales —(Upper part of the Little River Group)—red, gray and black
shales, with beds of sandstone and conglomerate — Fossil Plants, ete. 2,400 feet.
4. Mispec Conglomerate— Red conglomerate and shale. 1,800 feet.
In the vicinity of St. John, these beds rest on cambrian rocks of the Acadian (Mene-
vian) group, and are overlain uncomformably by lower carboniferous (“sub-carboniferous’’ )
conglomerates, which in their extension eastward are associated with the Albert shales
holding fossil fishes and plants of characteristic lower carboniferous types.” Elsewhere im
1 Report of Bailey and Mathew, Geol. Survey of Canada, 2 See for details the author’s Acadian Geology, 3d Edi-
1871. In the author’s Acadian Geology, the thickness is tion.
given as 9500 feet; but later observations have reduced the
thickness of the lower members.
INSECTS OF NEW BRUNSWICK. 35
Southern New Brunswick, they overlie laurentian and huronian rocks, and are seen
to rise unconformably from beneath the carboniferous rocks of the great central coal-for-
mation area of New Brunswick.’ They are everywhere more disturbed and altered than
the overlying carboniferous beds; and Messrs. Bailey and Matthew have shown that
certain intrusive masses and dykes of granite, known to be of pre-carboniferous age, were
erupted subsequently to the deposition of these beds.
The vegetable fossils of this formation are very numerous. I have catalogued or des-
cribed from it upwards of 50 species, belonging to the genera Dadoxylon, Sigillaria, Cal-
amites, Asterophyllites, Lepidodendron, Cordaites, Psilophyton, Neuropteris, Sphen-
opteris, Hymenophyllites, Pecopteris, &c.; the whole constituting a well-marked devonian
assemblage, distinguishable from the upper devonian flora of Perry in Maine, which is
perhaps newer than the Mispec conglomerate, and still more distinct from the lower
earboniferous flora of New Brunswick and Nova Scotia, while on the other hand it is
incomparably better developed than any known flora of silurian age. Owing to
the richness of this flora, and to the fact that some genera and species of plants appear
earlier in North America than in Kurope, some European palaeobotanists have been un-
willing to admit the devonian age of this formation, but entirely without good reason.
That some of the species of the St. John beds, as Calamites transitionis (=C. radiatus of
Brongniart), are found in the lower carboniferous of Europe, is not wonderful, as in the
devonian as well as in subsequent periods the flora of America has been somewhat in
advance of that of Europe. Still the prevalent plants in the St. John beds are distinctively
erian or devonian and not carboniferous. Further, recent discoveries of tree-ferns and
petioles of ferns in great abundance in the devonian of New York, and as low as the
Hamilton group, have shown that the devonian must have been even more remarkable
than the carboniferous for the abundance and variety of its ferns. A few additional
species of ferns found among specimens remaining in Professor Hartt’s collections will
shortly be described.
The crustaceans recognized in these beds are Hurypterus pulicaris Salter ; Amphipeltis
paradoxus Salter, a precursor of the Stomapods; and a pygidium of a small trilobite,
unfortunately too imperfect for determination. A species of Spirorbis, which I have
described as S. erianus,? occurs attached to leaves of Cordaites, and is distinct from the
common Spirorbis of the coal-measures (S. carbonarius or pusillus). A fragment of a
spiral shell may possibly represent a devonian pulmonate, and will be noticed in a
forthcoming paper on the pulmonates of the carboniferous. No other animal remains
have been found in these beds, except the fossil insects. The conditions of deposit were
probably estuarine rather than marine, and the abundant fossil plants testify to the prox-
imity of land.
It is difficult to correlate the subdivisions of the devonian in eastern Canada, with
those in the great erian area of New York and western Canada, owing to the absence of
the marine limestones, so characteristic of the latter. In my report on the fossil plants
of the devonian and upper silurian of Canada,? I have, however, stated some grounds
1 Bailey and Matthew’s Reports, which see also for details 2 Report on devonian plants. Geol. Surv. Canada, 1871.
of the structure and relations of the devonian and associated ® Geol. Survey of Canada, 1871.
formations, in southern New Brunswick.
36 SCUDDER ON THE DEVONIAN
for believing that the Dadoxylon sandstone and Cordaite shales may be equivalents of the
Hamilton group in New York and Ohio, which has afforded some fossil plants compara-
ble with those of the St. John beds, especially trunks of conifers of the genus Dadoxylon
(Araucaroxylon). The horizon of the fossil insects of St. John would thus be middle
devonian.
In the finer shales of this series, the remains of plants are very perfectly preserved,
the most delicate leaves having not only their outlmes but also their nervature repre-
sented by films and lines of shining graphite, resembling pencil drawings on a dark gray
ground. The insect wings are preserved in a similar manner.
The discovery of the insect remains is wholly due to the late Prof. C. F. Hartt, who,
with the aid of other gentlemen, members of the Natural History Society of New Bruns-
wick, removed by blasting large quantities of the richest fossiliferous beds and examined
them with great care. The extreme rarity of these remains renders it probable that
but for the large quantities of material examined by Professor Hartt, they would not
have been found; while the extreme delicacy of the impressions would have prevented
them from being observed except by a very careful collector scrutinizing every surface in
the search for leaflets of ferns, preserved in such a way as to be visible only under
the most favorable light. These unusually perfect explorations should be taken into
the account in any comparisons made of the fossils of this locality with those of other
places.
The following detailed section of the Little River Group, at the Fern Ledges, Lancaster,
N. B., where the insects occur, is derived from Professor Hartt’s paper in Bailey and
Matthew’s report before alluded to, and is substantially the same as given in my Acadian
Geology.
Section at the “ Fern Ledges.” (Order ascending.)
Heavy beds of gray sandstone and flags (Dadoxylon sandstone). Dadoxylon ouan-
gondianum Daws., Calamites, ete. Thickness, by estimation, 500 feet.
Under this head I have classed all the beds underlying the Plant-bed No. 1, which I am
disposed to regard as the lowest of the rich plant-bearing layers, and the base of the
Cordaite shales. These beds occupy the low ground lying between the ridge of the
Bloomsbury group and the shore. They are covered by drift, and show themselves only
in limited outcrops, and in the ledges on the shore. In the western part of the ledges
they are thrown forward on the beach by a fault, forming a prominent mass of rock, in
the summit of which a fine trunk of Dadoxylon is seen embedded in the sandstone.
Recent excavations made in these beds in quarrying stone for building purposes, in the
eastern part of the locality, where the rocks are very much broken up by dislocations,
have exposed numerous badly preserved impressions of large trunks of this tree.
PLANT-BED No. 1. : : : : F ; ; : : Thickness, | foot.
Black arenaceous shale, varying from a fissile sandstone to a semi-papyraceous shale,
very fine-grained and very fissile, charged most richly with beautifully preserved remains
of plants, among which are the following species :—
Calamites transitionis Goeppert. (C. radiatus Br.) Occasional, in large, erect speci-
mens.—A sterophyllites latifolia Daws. Extremely abundant, often showing ten or
twelve whorls of leaves, sometimes with many branches.—A. acicularis Daws. Also
INSECTS OF NEW BRUNSWICK. 37
very abundant.—A. scutigera Daws. The curious stems of this species, with
their scale-armed nodes, occur abundantly in this bed.—Sphenophyllum — anti-
quum Daws.—Pecopteris obscura Lesqx.—Sphenopteris sp.?-—Cardiocarpum cor-
nutum Daws. Rare.— Psilophyton elegans Daws. Occasional. I have never
detected any trace of Cordaites Robbii Daws., in this bed. It is extremely common
in the overlying strata.
Gray sandstones and flags, with occasional ill-preserved plants, Calamites transitionis
Goeppt.—Cordaites Robbii Daws.— Asterophyllites and Sternbergiae . 2 feet 6 in.
Black arenaceous shales of the same character as those of Plant-bed No. 1, but
without fossils, so far as I have examined . : ; 3 . 11 inches.
Compact flaggy, gray sandstone, with badly preserved plant remains, MC aleoniites ;
eto. ‘ : : : : ‘ : ‘ : : , : : 2 feet.
Very soft, dark, lead-colored shales, much slicken-sided and charged with frag-
ments of plants. This bed is so soft that the action of the weather and the
sea have everywhere denuded it to the level of the beach . : ; : 4 feet.
PLANT-BED No. 2 . : ; ; z ‘ é z : . ; ; 1 foot.
At the point where the section crosses the bed, and where I first discovered it, it con-
sists of very compact and hard, light lead-coloured, slate-like, arenaceous shale ; but the
character of the shale varies much in its different exposures, being sometimes very soft
and fissile, and of a very black colour. The following is the list of species which it
affords :—
Calamites transitionis Goeppt. Occasionally; never in good specimens.—C. cannae-
formis Brongn. Occasionally; never in good specimens.— Asterophyllites acicularis
Daws. Rather rare—A. latifolia Daws. Rather rare—A. longifolia Brongn. (?).
Rather rare—A. parvula Daws. Whorls of a minute Asterophyllites, which
may belong to this species, are not imfrequent in this bed. — Sporangites
acuminata Daws.—Pinnuaria dispalans Daws. Abundant.—Psilophyton elegans
Daws. Quite common, always in fragments, never in good specimens.—
P. glabrum Daws. Flattened stems, with a wavy woody axis traced in a
brighter line of graphite, occur in this bed, but always in fragments.—Cor-
daites Robbii Daws. Extremely abundant, and very fine specimens may be
obtained, especially from the upper part of the bed, and rarely specimens showing
the base or the apex of the leaf—Cyclopteris obtusa Lesqx. Occurs very abund-
antly in detached pimnules—C. varia Daws. Rare.—Neuropteris polymorpha Daws.
Extremely abundant, never in large fronds.——Sphenopteris Hoeninghausii Brongn.
Quite abundant, often in fine fronds. =9 marginata Daws. Abundant, in fine fronds.
—S. Harttii Daws. Very rare.—The original specimen came from this bed.—
Hymenophyllites Gersdorfii Goeppt. Rather rare—ZH. obtusilobus Goeppt. Rare.
—A1. curtilobus Daws.—Alethopteris discrepans Daws. Amongst all the abundance
of plants afforded by Plant-bed No. 2, I have detected only one or two pinnules of
this fern, which appears first in abundance in Plant-bed No. 3. It is afterwards one of
the most common species.—Pecopteris ingens Daws. Very rare, only two or three
fragments of pinnules having been found.—TZvrichomanites (?) Only a single speci-
men, probably, as Dawson has suggested, only the skeleton of a fern—Car-
38 SCUDDER ON THE DEVONIAN
diocarpum cornutum Daws. Abundant, and very finely preserved, never attached
—C. obliquim Daws. Quite abundant, also never attached.— Trigonocarpum
racemosum Daws. Rare.—Hurypterus pulicaris Salter. The occurrence in Plant-
bed No. 2 of this minute crustacean was first detected by my friend Mr. George
Matthew. It is very rare, not more than four or five specimens having been found
by Messrs. Matthew, Payne, and myself at the time of the description of the species
by Salter. I have since that time succeeded in collecting nearly twice as many more,
some of which appear to belong to a new species.—Amphipeltis paradoxus Salter.
The specimen figured in Salter’s paper was found by Professor Dawson and myself, m
breaking a piece of shale in my cabinet, that came from this bed. Only one other
specimen has since been obtained. It consists of two or more of the thoracic seg-
ments, and was collected by Mr. Lunn. It is in the collection of the Natural History
Society of New Brunswick. In addition to the above species, this bed has afforded
the following :—Cyclopteris, sp. nov—Neuropteris, sp. nov. A single specimen
collected by Mr. Lunn.—Sphenopteris, sp. nov.—Spirorbis erianus Daws. The leaves
of Cordaites in the upper part of the bed are as thickly covered with a little
Spirorbis as are the fronds of the recent fucoids of the Ledges. The specimens
are poorly preserved. — TZrilobites. Mr. Payne collected a minute trilobite from
from this bed, but it proved not determinable.—IJnsect Remains! In the sum-
mer of 1862, I discovered an organism in Plant-bed No. 2, which at the time I could
make nothing of; but which I have since proved to be the wing of an insect. Several
weeks after, I found in Plant-bed No. 8 an unequivocal insect’s wing. This discovery was
followed by that of others, my father, J. W. Hartt, finding another in this bed. [The
insects of this bed are GEREPHEMERA SIMPLEX and XENONEURA ANTIQUORUM. |
Compact flagey sandstone, quite barren . : ‘ ; : : 5 feet 10 inches.
PLANT-BED No. 3 . : : : ; F : : : 5 : 10 inches.
Black and lead-colored shales, quite compact in upper part, but in lower very crum-
bling, splitting irregularly, slicken-sided, often with polished surfaces, and traversed by
thin quartz-veins. These shales are so soft that the sea and weather have everywhere
denuded them to the level of the beach. There are now no exposures of the bed work-
able. The following are the fossils which occur in it :—
Calamites transitionis Goeppt. Occasionally. — C. cannaeformis Brongn. — Aste-
rophyllites latifolia Daws. Very beautiful whorls of this plant are very common
here, the whorls, though usually detached, being sometimes found united three or
four together.—Sporangites acuminata Daws. Common.—Pinnularia dispalans
Daws. Common.—Psilophyton elegans Daws. Occasionally —P.(?) glabrum
Daws. Occasionally.—Cordaites Robbii Daws. Extremely abundant, but not so
well preserved as in Plant-bed No. 2. Leaves usually appear as polished bands of
graphite, with venation obliterated —Cyclopteris obtusa Lesqx. Not very abundant.
—Neuropteris polymorpha Daws. In beautiful specimens, common.—Sphenopteris
marginata Daws. Not common.—S. Hoeninghausii Brongn. Not common.—Pecop-
teris (Alethopteris) discrepans Daws. It was here that I first discovered this species.
It occurs quite abundantly, but always in fragments.—Cardiocarpum cornutum Daws.
Quite common.—C. obliquum Daws. Quite common.
INSECTS OF NEW BRUNSWICK. 39
Coarse sandstone, full of obscure casts of Sternbergiae and Calamites . 6 feet 6 inches.
Soft shale and fissile sandstone, with Calamites oa.
Sandstones . ‘ 5 , , F ‘ ‘ ‘ : : + 2feets 3 “
Shale with obscure remains of plants 24 «
Sandstones, barren, so far as examined : P P : - Afeet10 «
Sandstone and shale, with a few Calamites and Cordaites i , , 9 «
Sandstone and coarse shale, with obscure markings 3 ’ . Ofeet 10 «
Light greenish, coarse shale, with fern-stems, Cordaites, and obscure
markings, Carpolites (?) « : : ‘ . fe
Sandstones and coarse shales, with badly preserved vegetable remains 18feet 9 «
PLANT-BED No. 4. ‘ ‘ : P a) tedGin Gs 5 <
Coarse shales, affording at the point where the litte of section crosses it : —
Cordaites Robbii Daws—Calanities transitionis Goeppt.—Neuropteris polymorpha
Daws.—Psilophyton glabrum Daws.—Pinnularia dispalans Daws.
Ihave examined at two different points, in the eastern part of this locality, a bed
which appears to correspond to this. It is characterized there by a very beautiful Neu-
ropteris* (.N. Dawsoni Hartt) with long linear lanceolate pinnules decurrent on the rachis,
to which they form a broad wing. The pinnules are often four inches in length. This
is one of the most beautiful ferns occurring at the locality. Several other new forms are
associated with it. Among these is a magnificent Cardiocarpum, nearly two inches in
diameter (C. Bailey Daws.).
Sandstone with obscure markings : ; ‘ : : : : 9 feet 6 inches.
PLANT-BED No. 5 é : F : , ; ‘ ‘ ‘ 6 inches.
Soft, fine-grained fight- greenish shale.
Cordaites Robbii Daws. Extremely abundant. — Calamites cannaeformis Brongn.
Found occasionally.—Psilophyton (?) glabrum Daws.—(?) Asterophyllites acicularis
Daws. — Alethopteris discrepans Daws. Quite abundant.—Sphenopteris marginata
Daws. Quite abundant.—Pecopteris, sp. nov. (?) — Hymenophyllites sp. (?)—Neurop-
teris polymorpha Daws. Very abundant—Spirorbis occurs in the bed, attached to
the leaves of Cordaites. I have never detected it in any of the beds higher up.
Compact flaggy sandstones and coarse shales, se a few plants. : ‘ : 8 feet.
PLANT-BED Ne Oo. 6. : : : 2 feet.
Fine-grained and light-coloured Bhald, with great abundance of Cordaites Robbii, and
Calamites transitionis; above that a layer of coarse shale, with Cordaites and stems of
plants badly preserved ; then a layer of soft, very friable shale, with few fossils; and lastly,
a layer of coarse shale of a greenish-gray colour, with : —
Alethopteris discrepans Daws. Abundant.—Cordaites Robbii Daws. Abundant.—
Calamites cannaeformis Brongn.—WNeuropteris polymorpha Daws.—Cardiocarpum
cornutum Daws.—Co ardiocarpum obliquum Daws.— Pecopteris, sp. nov. Occurs
abundantly in some of the overlying beds.
Sandstones and coarse shales, with abundance of plant remains, principally Cordaites
and Calamites . ‘ ; ? ; : : E : : , 5 feet.
* This plant belongs to a new genus, subsequently named Megalopteris. Report on devonian plants of Canada, 1871.
40 SCUDDER ON THE, DEVONIAN
PLANT-BED No. 7 . 2 : : : é : . 2 feet.
This is one of the richest plant- sigak Bi the peciod The shales composing it vary
much in character in different exposures. They are for the most part of a gray colour
and compact, like a fine-grained sandstone, though they pass into a light brownish, very
fissile, soft shale, and there are some layers of a very black colour.
Cordaites Robbii Daws. Very abundant, and in a beautiful state of preservation.—
Calamites transitionis Goeppt. Not abundant as good specimens.—C. cannaeformis
Brongn. Rare.—(?)Asterophyllites acicularis Daws. In very beautiful specimens,
very common in certain thin layers. There are two or three other species, occurring
also in the overlying beds, which appear to be new.— Sporangites acuminata Daws.
Extremely plentiful. — Pinnularia dispalans Daws. Extremely _ plentiful.—
(2?) Psilophyton elegans Daws. I have obtained several specimens of a Psilophyton
growing in tufts, and closely resembling this species.—Neuropteris polymorpha
Daws. Occasional.— Alethopteris discrepans Daws. Abundant, and obtainable in
good specimens.—Cyclopteris obtusa Lesqx. Occasional.—Sphenopteris mar-
ginata Daws.—Hymenophyllites subfurcatus Daws.—Cardiocarpum cornutum Daws.
Quite abundant.—C. obliquum Daws. Quite abundant.—C. Crampu Hartt. —
Alethopteris Perleyi Uartt—Sphenopteris pilosa Daws.—Several other plants
not yet determined.—Insects. A single insect’s wing was obtained from this bed
by my father and myself. Tea mserermen ANTIQUA. |
Centred sandstone and coarse shales (barren of fossils). : ‘ ; : 3 feet.
PLANT-BED No. 8. : : : : ; : : 1 foot 10 inches.
Fine-grained, tough, but Reale aaartstones rather coarse shales, often of a greenish
cast, and at the top a thin layer of very black shale very rich in plants. The middle por-
tion does not contain so many plant remains, but the lower is as well stocked as the
leaves of an herbarium. The followmeg are the fossils I have collected from it :—
Cordaites Robbii Daws. As usual in great profusion, and in very fine specimens.—
Calamites transitionis Goeppt. Occasional.—C. cannaeformis Brongn.—(?) Aste-
rophyllites acicularis Daws. Quite common, together with one or two other species
apparently new, which occur also in Bed 7.—Annularia acuminata Daws. Ex-
tremely common, especially in certain layers—Pinnularia dispalans Daws. Abun-
dant.—(?) Lycopodites Matthewi Daws. Rare.—Cyclopteris obtusa Lesqx.—Cyclop-
teris, sp. nov.— Neuropteris polymorpha Daws. Quite frequent in detached pimnules.
— Hymenophyllites subfurcatus Daws. Very common. — Alethopteris discrepans
Daws. ‘This is the most abundant fern in this bed. It occurs usually in detached
pinnules, though not unfrequently in considerable fronds.—Alethopteris. Besides
the above, there are three or four other species, some of which occur also in Beds
6 and 71—Cardiocarpum cornutum Daws. Not very common.—C. obliquum
Daws. Also not very common.—C. Crampii Hartt. Quite common.—Several
other species of plants not yet determined.—/nsects. Two species, two specimens.
One was obtained by my friend, Mr. James Hegan. [Three insects were obtained
from the bed: Homorurerus rossitis, Dyscrirus veTustus and LirHENTomMUM
Harrru. |
1 Probably the species afterwards described (Dr. Dawson’s — serrulata Hartt, and Pecopteris preciosa Hartt.
Report of 1871) as Alethopteris Perleyi Hartt, Pecopteris
INSECTS OF NEW BRUNSWICK. 4]
Sandstones and coarse shales, with badly preserved Cordaites Robbii Daws., C. tran-
sitionis Goeppt., and Alethopteris discrepans Daws. . ; : : : 26 feet.
Fine-grained, light-greenish shale, with obscure remains . 3 . : : 1 foot.
Sandstone and shales, with Calamites and obscure markings . : : , 23 feet.
Total thickness of the beds embraced in this section : : . 440 feet, 11 inches.
XI. EXPLANATION OF PLATE.
Fig. 1. Homothetus fossilis (magn. ?). The dotted lines are conjectural; the break in the dotted line
representing the outer border indicates the presumed amount of separation at that point to account for the
bending of the outer piece of the wing.
Fig. 2. The same (4). With no parts restored.
Fig. 8. Lithentomum Harttii (4). The dotted lines show the presumed connection of the basal veins
with the other fragment.
Fig. 4. Dyscritus vetustus (4).
Fig. 5. Xenoneura antiquorum (¢). The dotted lines indicate the supposed course of the veins and
border where they are not preserved. A portion of the base is shaded to show the exact appearance of
the concentric ridges; this basal portion is mostly drawn from the same stone as fig. 7, but the small fragment
unshaded, at the extremity of the anal vein, and the cross vein are drawn in from the reverse of fig. 5, shown
in fig. 6; so also is the larger apical piece with part of the lower margin, these two parts being more complete
on the reverse than on the obverse.
Figs.6 and 7. The same (}). With no parts restored. The apical fragment of fig. 7 is not represented ;
it exists, but is not so complete as in fig. 6.
Figs. 8 and 8. Gerephemera simplex (}). The two independent lines at the extremity of the costal
margin are inserted from a drawing made under the camera when only these lines and the outer margin with
the tip of the veins were exposed; in working out the rest of the wing these were broken away, but are
here restored. The arrow indicates the direction of 8°, which represents the contour of the surface of the wing,
the upper dotted extremity indicating the costal margin (shown to the left of the arrow), and the dots along
its course the position of the veins it crosses.
Fig. 9. Platephemera antiqua (4). The faint line of dashes above the marginal vein represents the
margin of the wing, indicated on the stone by a slight darkening of the surface. The dotted lines at base and
at tip indicate the presumed form of the wing.
Fig. 10. The same (4). This figure, the reverse of fig. 9, is so placed in relation to the preceding as to
indicate the probable expanse of wing of this insect; a fragment at the lower angle of this specimen is not
preserved in fig. 9, which possesses a bit of the outer margin not found in this.
Figs. 1, 2, 4, 6, 8, 10 represent specimens preserved in the museum of the Natural History Society of St.
John, N. B.
Figs. 3, 7, 9 represent specimens in the museum of the Boston Society of Natural History.
Fig. 5 is a composite drawing from the specimens in each museum. The Boston Society of Natural History
possesses the reverse of a small portion of fig. 8; and the St. John Society the reverse of No. 3, neither of
which are engraved.
The plate was executed by Messrs. Sinclair & Son of Philadelphia.
Annivers. Memoirs Bost. Soc. Nat. Hist Scudder Pl. 1
ae
?
0)
KK)
J. Kenry Blake, delin.
T. Sinclair & Son Jith Plole.
DEVONIAN INSECTS
1830, ANNIVERSARY MEMOIRS OF THE BOSTON SOCIETY OF NATURAL HISTORY. 1880.
THE GYMNOSPORANGIA OR CEDAR-APPLES
OF THE UNITED STATES.
By W. G. FARLOW.
BOSTON:
PUBLISHED BY THE SOCIETY.
1880.
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THE GYMNOSPORANGIA OR CEDAR-APPLES OF THE UNITED STATES.
By W. G. Fartow.
THE UREDINEAE or rusts include a large number of species which are parasitic on living
plants, and, if we adopt the modern view as to their development, they are remarkable for
the transformations they undergo, which suggest rather the metamorphoses familiar to us
in insects than the ordinary phases of plant life. By earlier writers, the Uredineae were
divided into different genera, which were supposed to be distinct, and not genetically con-
nected with one another. Thus, for instance, there were the genera Puccinia, Uredo, and
Aecidium, each containing a large number of species. That species of certain genera
usually preceded or accompanied species of other genera, as Puccinia, was well known, but
the two were not supposed to have any genetic connection, and the relation between them
was regarded as either quite accidental, or else cases of parasitism.
In 1848 Gasparrini’ observed the mode of germination of the spores in Podisoma, a
genus closely related to Puccinia, and in 1854, Tulasne? extended the observation to the
spores of several other genera of Uredineae. He also advanced the opinion that the so-called
species of Uredo, Trichobasis, Lecythea, and related genera were merely early stages in the
development of species of Puccinia, Phragmidium, Melampsora, ete. In a paper by De
Bary,’ published in 1863, it was maintained that not only were the species of Uredo and
their allies forms of development of other genera, but that the so-called species of Aecidium
as well were not distinct, but that they too represented stages of development of Puccinia,
Uromyces, and other genera, and in point of time preceded the stage described by Tulasne
as the stylosporic or uredo condition. The papers of Tulasne and De Bary, as might be
supposed, gave a fresh interest to the study of the Uredineae and, while previously mycolo-
gists had been mainly occupied with describing large numbers of species based on the
microscopic character of the spores and the gross appearance of the spots produced in the
host-plants, after the appearance of the two papers mentioned it became the fashion to try
to ascertain the genetic connection between the different forms known as Aecidia and
Uredines and the different species of Puccinia, Uromyces, ete. The views of De Bary
and Tulasne were, as a general rule, accepted by all the leading mycologists of the con-
tinent, but were not so readily received by those of Great Britain. At the present day, the
1Qsservazioni sulla generazione delle spore nel Podisoma ® Recherches sur le développement de quelques champig-
fuscum. Rendiconto R. Accad. Scienze Napoli, 1848. nons parasites. Annales des sciences naturelles. 4 Série.
2Seconde mémoire sur les Urédinées et les Ustitaginées. Tome 20.
Annales des sciences naturelles. 4 Série. Tome 2.
4 FARLOW ON THE GYMNOSPORANGIA
connection between the uredo forms and other final forms is generally admitted, and the
relation of the aecidial stage to the others, as shown by De Bary, is considered to be proved
beyond a doubt by nearly all continental mycologists, although there are a few exceptions ;
but British botanists remain more or less sceptical on the subject.
In consequence of the prevalent view with regard to the development of the Uredineae,
writers have ceased retaining such genera as Uredo and Aecidium except as receptacles for
the forms which have not yet been connected with any definite final form, and on the
continent a new nomenclature has arisen which has not as yet been adopted by American
writers. For the purpose of illustration let us take Puccinia Graminis, the common
blight on grass which was minutely studied by De Bary.’ The final form appears as black
spots or lines on the leaves and stems of grasses, and is composed of dark colored, rather
thick-walled spores, formed of two more or less conical cells united by their bases and at-
tached at the lower end to a mycelium. These two-celled spores are called teleutospores
and, in the case of Puccinia Graminis, are produced in the autumn. When left to them-
selves, they germinate the next spring in the following manner. From each cell is given
off one, or occasionally two or three, delicate filaments, which scarcely exceed in length the
length of the teleutospore. The upper part of the filament becomes somewhat enlarged,
and there are generally formed from two to four cross partitions by which the filaments are
divided into two to five cells. The upper cells grow out laterally and bear each a small
ovoid cell which readily falls from its attachment. The name given by Tulasne to the ger-
minating filaments was promycelium, and he called the secondary small ovoid cells sporidia.
In the case of Puccinia Graminis, according to De Bary, the sporidia do not grow except
on the common barberry, on which plant they produce in the spring or early summer what
is popularly called a cluster-cup, or in botanical language an aecidium. The so-called aecid-
ium is a complex affair. The mycelium from the germinating sporidia produces in spots a
swelling and discoloration of the barberry leaves. The spots are more or less of a reddish-
yellow color, and there soon appears on the upper side of the leaves a number of minute,
deep brown pustules called spermogonia. A section through the spermogonia shows that
they are cavities lined with slender filaments, the tips of which, called spermatia, separate
and escape in masses from the spermogonia. Soon after the appearance of the spermogonia
on the upper side of the leaves, the lower surface swells and bears a number of cups,
the aecidia proper. The cups are really formed inside the leaf, and are sacks com-
posed of a cellular covering or peridium, and orange-colored spores arranged in rows
arising from the base of the peridium. When they come to the surface, the peridia rup-
ture and the spores readily escape. The aecidial spores germinate upon different grasses,
and produce in summer what is called the rust, that is, spots or lines containing a rusty
colored powder. The rust stage is called by botanists the uredo and consists of rather del-
icate, oval, unicellular spores of an orange-red colour, often called stylospores, attached to
amycelium. Like the aecidial-spores, the uredo-spores easily fall from their attachment,
and germinate on grass and produce late in the season the pustules which bear the teleuto-
spores already described.
As has already been remarked, these different stages were kept as distinct species by
1 Recherches sur le développement de quelques champig- Neue Untersuchungen iiberUredineen. Monatsber. Akad.
nons parasites. Annales des Sciences naturelles. 4 Serie. Wiss. Berlin, 1865-66.
Tome 20, 1863.
OF THE UNITED STATES. 5
older writers. The teleutospore condition was called Puccinia Graminis ; the uredo con-
dition Uredo linearis; and the aecidial condition Aecidiwn Berberidis. Recent writers
merely speak of the species Puccinia Graminis, including by that all the different stages.
To designate the old Aecidium Berberidis they say Puccinia Graminis, fungus hymen-
iferus, and to designate the Uredo linearis they say Puccinia Graminis, fungus stylospor-
iferus. Or more briefly one says Puccinia Graminis (Uredo) or (Aecidium) as the case
may be. To understand at once what is meant by the different expressions one must be
acquainted with the literature of the development of the different species, and that is a diffi-
cult matter for us in America, since the observations on the subject are scattered in numer-
ous journals, some of which are seldom met with in this country.
Since the development of Puccinia Graminis is probably as well known as that of any
species of the order, and is furthermore, the species in which the development was first
studied by De Bary, we may use that as a type in studying other members of the order.
The development is represented in four different stages, viz.:
1. Teleutospores on grass in the autumn.
2. Promycelium and Sporidia produced in spring directly from the teleutospores.
3. The Aecidium produced in May or June on the barberry, comprising two sets of
organs, the Spermogonia with their spermatia and the cups or Aecidia proper.
4. The Uredo produced on grass from the spores of the Aecidia.
1. Teleutospores produced from the uredo-spores.
There is a cycle of four different stages, which, taken together, constitute the life of the
individual Puccinia. It will be remarked that two of the stages are found on grass, one
on barberry, and one is produced directly from the teleutospores wherever they may be.
At present we are only interested in the genus Puccinia in so far as it is a type of the or-
der, and we must next see how far the other species of the order agree with Puccinia
Graminis. In the first place, if we consider the species of Puccinia alone, we find that
it is only in certain species that aecidial and uredo conditions are supposed to exist. In
some species, as P. Malvacearum Mont., only teleutospores are believed by some to occur.
In P. anemones Pers., uredo-spores are unknown; in a large number of species aecidia
are unknown. Furthermore, in case of the species in which all the different stages are
known to occur, some have them all produced on the same host-plant, while others, as we
have seen in P. Graminis, bear them on different plants. It may be asked whether in the
cases where aecidial or uredo conditions are unknown, we are not to expect that they will
be hereafter discovered. Such is probably true in most cases, but still there are species, as
P. malvacearum, in which it has been supposed that they are absolutely wanting. For the
purpose of expressing the presence or absence of the different stages and their relative
position, Schroeter divided the genus as follows:
Eupuccrnia. All stages known and all on the same plant.
Hereropuccrnia. All stages known. Aecidia and spermogonia on one plant, uredo
and teleutospores on another plant. :
Hemipuccinta. Only stylospores and teleutospores known, and both occurring simul-
taneously on the same plant.
Pucciniopsis. Spermogonia, aecidia, and teleutospores known and on different individ-
uals of the same species. Uredo unknown.
6 FARLOW ON THE GYMNOSPORANGIA
Microruccrnta. Only teleutospores. known. Spores quickly detached but not ger-
minating except after a considerable interval.
LepropucciniA. Only teleutospores known. Spores persistent, germinating quickly.
From the above named divisions it is evident that there is no want of variety in the
genus Puccinia, or perhaps it would be better to say that there is a very considerable
ignorance of the forms which may occur. Turning from Puccinia to other genera of the
order, in Uromyces, of which the teleutospores differ from those of Puccinia in being one-
celled, we have the same variations in the presence or absence of the different stages and
Schroeter divides the genus in a similar way, into Euromyces, Hemiuromyces, etc. In
the genus Gymnosporangium, which differs from Puccinia in its gelatinous nature, only
aecidia and teleutospores are known. In Cronartium aecidia are unknown. In all the
genera the teleutospores are supposed in germinating to produce the characteristic pro-
mycelium and sporidia, although as I shall have occasion to remark later, this is subject to
modification, while the aecidial spores and stylospores germinate by giving out one or
more germinal filaments as is the case with the spores of most fungi. In the aecidia the
spores are always either orange colored or brownish, and are formed in chains which arise
from a sort of placenta formed by the mycelium, at the base of the cellular sack known
as the peridium. Spermogonia are present in the aecidial stage, and are developed
earlier than the cups, or aecidia proper. The relative abundance and position of the
spermogonia with respect to the aecidia themselves, vary in the different species.. They
are sometimes on different sides of the leaves, as in Puccinia Graminis, some times mixed
rarely on different parts of the plant. The uredo forms of the different genera vary more
than the aecidial forms. Asarule the spores are borne singly, but in some genera, as
Coleosporium, they are in chains. The so-called peridium found in the aecidia is
wanting in the uredo forms, but there is sometimes a false peridium formed from the cells
of the host plant, or the spots are surrounded by a circle of sterile cells, called paraphyses,
derived directly from the mycelium. Spermogonia are usually wanting, but are found in
a few cases. The teleutospores of the different genera vary greatly im several respects ;
they may be unicellular, as in Uromyces and Melampsora; two-parted, as in Puccinia and
Gymnosporangium; or many-celled, as in Phragmidium and Xenodochus. They may
vary from gelatinous, as in Gymnosporangium, to dense and indurated, as in Melampsora.
They may rise above the surface of the host plants in columns, as in Cronartium, or may
be sunk among the epidermal cells, or even produced within them, as in Melampsorella.
The principal generic distinctions are derived from the characters of the teleutospores, but
as far as possible, continental writers have regard to the respective aecidial and uredo
forms. The genera are perhaps not in all cases well marked, but they are at least quite
as well defined as in the other orders of fungi.
In studying the Uredineae of the United States, one, for several reasons, naturally begins
with the genus Gymnosporangium. The species of the genus are comparatively few in
number, and are, with us, found only on different Cupressineae. The teleutospores occur
in spring or early summer, and resemble those of Puccinia in being generally though not
always two-celled, but differ from them in being borne on very long hyaline stalks, the
whole being imbedded in a mass of jelly which in moist weather swells up and forms the
OF THE UNITED STATES. G6
orange colored masses, which are supposed by many to be the flowers of the cedar-trees.
Probably in no part of the world are the species so abundant as in the eastern United
States, and material for study can be procured in the greatest abundance. In one
respect this abundance has its advantages, in another it has its disadvantages. The
Gymnosporangia of Europe, compared with our own, are few in number and much less
abundant, the number of species found in central and northern Europe being limited by
Oersted and Reess to three. Oersted, of Copenhagen, was the first to study their devel-
opment. He connected the gelatinous teleutosporic stages which occur on species
of Juniperus with the elongated cluster-cups placed formerly in the genus Roestelia, which
are found in summer on the leaves of different Pomeae, thorns, pears, apples, etc. He
went so far as to connect each of the three species of Gymnosporangium found in Denmark
with a particular species of Roestelia. The experiments of Oersted consisted in sowing
the germinating sporidia of the Gymnosporangia on leaves of different Pomeae. I shall
have occasion to return to this subject later, but it is sufficient to notice in this connection
that Oersted’s ' observations were afterwards confirmed by De Bary? and others in Ger-
many, Cornu’ in France, and Cramer * in Switzerland, and accordingly the genus Roestelia
has been suppressed by recent continental writers, who refer to the species formerly placed
in that genus as the aecidial or hymeniferus stage of the different Gymnosporangia.
Ifone then would study the American species of Gymnosporangium in the light of
modern research, he must also take into account. the different Roesteliae of which we have
an abundance. The first step is to settle the species of the two genera on anatomical
grounds, and then by cultures or observations in the field to ascertain their genetic rela-
tions. I insist on the importance of first defining the species from their anatomical struct-
ure, for unless this is done any cultures which may be made can have very little value and
one is constantly gropimg in the dark. One may afterwards modify his view of the species
in consequence of knowledge derived from artificial cultures, but one should not, for
instance, conclude at once, because the sporidia of a given species of Gymnosporangium
produce spermogonia when sown on the leaves of two plants which are known to have
Roesteliae differing in their morphological characters, that the two Roesteliae are the same
species in spite of their different appearance. In determining the species of the two
genera one is obliged to ascertain which of our species are the same as those found in
Europe, and here a difficulty arises, for one is not quite sure in some cases how far a Euro-
pean species of fungus may vary from the type when growing upon a different host from
the one on which it occurs in Europe. In this case one would gladly resort to artificial
cultures to settle the question. Unfortunately for us who are obliged to follow in the
steps of Europeans in so far as the determination of species common to both continents is
concerned, European writers have not agreed amongst themselves as to the limits of
1Bot. Zeit., 1865, 291; and 1867, 222. Nouvelles observa-
tions sur un champignon parasite dont les générations alter-
nantes habitent sur deux plantes hospitaliéres differen tes.
tesvampe og navnlig om den genetiske Forbindelse mellem
Sevenbommens Baevrerust og Paeretraeets Gitterrust.
Copenhagen, 1868.
Bulletin de 1’ Académie Royale des Sciences de Copenhague,
1866.
Nouveaux essais de semis faits avec des champignons par-
asites. Loc. cit., 1867.
Om en saeregen, hidtil ukjendt Udvikling hos visse Snyl-
2 Bot. Zeit., 1865, 222.
8 Bull. Soc. Bot. Tome 25, pp. 122, 221, &e.
“ Ueber den Gitterrost der Birnbiiume and seine Bekiimp-
fung. Schweizer. landwirthschaft Zeitschrift. Solothurn,
1876.
8 FARLOW ON THE GYMNOSPORANGIA
their species. Reess! is the most recent writer who has given the synonymy in detail, and
I have in most cases followed his account, and have only given in full the special Ameri-
can references.
The greater part of the present paper is devoted to an account of the morphological
characters of the species of the two genera found in this country, and I have been unable
by means of cultures to arrive at as definite results as I should desire ; but a record of
one’s failures is hardly less important, than an account of one’s success. I have myself
collected large quantities of Gymnosporangia and Roesteliae in the region around Boston,
and I am greatly indebted to Mr. H. W. Ravenel, of Aiken, and Dr. J. H. Mellichamps of
Bluffton, for material from South Carolina; to Mr. J. B. Ellis of Newfield, N. J., and Mr. C.
H. Peck, the State Botanist of New York, for valuable notes as well as specimens; to Mr.
C. B. Fuller for specimens from Portland, Me., and to Dr. H. W. Harkness for specimens
from California. I must particularly express my indebtedness to Dr. M. Cornu of
Paris, for his notes on European and American species, as well as for a valuable series of
specimens, and to Prof. C. Cramer, of Zurich. I have examined the specimens in Herb.
Curtis to which reference is made by Berkeley in Grevillea Vol. 11., p. 55-59, the speci-
mens in the Sprague collection of the Boston Society of Natural History, and some orig-
inal specimens of Schweinitz, which, however, were not in a good state of preservation,
besides numerous series of Fungi Exsiccati published in Europe and this country.
GYMNOSPORANGIUM De Cand.
Spores yellow or orange-colored, usually two-celled, occasionally one- to six-celled, on
long hyaline pedicels, imbedded in a mass of jelly which when moistened swells into col-
umnar or irregularly expanded masses. Mycelium parasitic in the leaves and branches of
different Cupressineae, producing in them various distortions.
The different genera in which the species of the present genus were placed by writers
previous to De Candolle, are given in detail in the paper of Reess and need not be repeated
here. The genus was first described by De Candolle from unpublished papers of Hedwig
in the Flore Frangaise, Vol. 11., 1805. Link? in 1809 separated the species in which the
gelatinous substance was more or less conical or cylindrical, from those in which it was
irregularly shaped, placing the former in Podisoma and retaining the latter in Gymnospor-
angium. The two genera of Link have, until a comparatively recent time, been kept dis-
tinct by European writers, and they were adopted by Schweinitz in the Synopsis Fung.
Am. Bor., and by nearly all recent American writers. That the distinction depending
merely on the shape of the gelatinous masses should not be called generic, is the opinion of
probably a majority of the mycologists of the present day, although a number still keep
the genus Podisoma. Accepting Gymnosporangium in its widest sense as adopted by
European writers, we have a genus whose teleutospores are two-celled like those of Puc-
cinia, but invested with a variable amount of colored jelly which assumes a more or less
definite shape in the different species. Accepting also the opinion first advanced by Oer-
1Die Rostpilzformen der deutschen Coniferen. Abhandl. 2 Observationes in Ordinis plantarum, 1809.
Naturf. Gesellschaft. Vol. x1. Halle, 1869.
OF THE UNITED STATES. 9
sted the aecidial stage is found in the so-called Roesteliae which are found on different
species of Pomeae but no indications of a uredo-stage have as yet been detected.
An acquaintance with some of the more recently discovered American species shows
that the original limits of the genus must be extended so as to include species in which the
spores become several (3-6) celled, and in which the amount of gelatinous substance found
is comparatively small. In other words, as far as can be judged from the teleutosporic
condition, the genus evidently approaches Phragmidium in G. Eilisii, which species can-
not well be placed in a separate genus, as was done by Kérnicke! in forming his genus
Hamaspora. The teleutosporic condition of Gymnosporangium unlike that of most of
the other genera of Uredineae of temperate regions, is found in the spring, and the species
of the United States occur only on species of Juniperus, Cupressus, and in California on
Libocedrus. The production of the promycelium and sporidia is seen with the greatest
ease and, in fact, after a shower the orange-colored masses are covered with the latter.
When, however, the masses after having been wet are quickly dried, instead of a produe-
tion of sporidia from the promycelium, the latter divides quickly into a number of cells
which separate from one another, and which on remoistening send out germinal tubes just
like the sporidia. A similar transformation of the promycelium was noticed by Cramer, loc.
cit., p. 7, in Gymnosporangium fuscum growing in Switzerland. In the Northern States
the teleutospores make their appearance usually from the middle of April to early in May
according to the season, reach perfection in May and disappear at the end of June. In
the South they are found considerably earlier.
The principal characters used in distinguishing the species are the shape and size of the
gelatinous masses, the shape and size of the spores, and the number of cells of which they
are composed, the number and position of the promycelia produced from each cell, and the
form and character of the swellings or distortions produced in the plant on which they are
parasitic. The particular shape of the gelatinous masses in any given species depends con-
siderably upon the age and amount of moisture, and in all species, after having been repeat-
edly expanded by numerous showers and again dried, they become amorphous. When first
appearing after the rupture of the epidermis, or outer bark, they are in the form of cush-
ions of a dark velvety color. As they reach perfection, the forms they assume may be divi-
ded into three; the cylindrical, which may be either blunt or acutely attenuated ; the
flattened or wedge-shaped, which are usually blunt and crenate or partly divided ; and the
irregularly expanded, which are broadly ovate or flattened and generally plicate. The
usual number of cells is two, but even in species which normally have only two cells, one
sometimes finds three or four cells. The single-celled spores are generally immature, but
occasionally they bear promycelia. In two of our species the normal number of spores is
greater than two. The number and position of the promycelia given off from each cell
varies considerably in the same species. As a rule, they are not borne at the apex of the
cells, but near the line of union of two cells. They are occasionally produced from the
apex, and in one species, that seems to be the common position. In some species the usual
number of promycelia to each cell is four, in others only one or two. The length of the
promycelia depends upon the position of the spores in the gelatinous mass. ‘Those on or
a 1 Hedwigia. Vol. Xvi, p. 22. 1877.
10 FARLOW ON THE GYMNOSPORANGIA
near the surface have short promycelia, while those of the interior have very long ones,
the object evidently being that the tips which bear the sporidia may reach the light and
air.
One of the most curious and interesting phenomena connected with the growth of Gym-
nosporangia is the peculiar distortions which they produce in the plants on which they
are parasitic. The mycelium does not differ much from that commonly found in the other
Uredineae. It is irregular, much branched, and cross partitions are rather numerous. Un-
like, however, the mycelium of some of the Pucciniae, that of the species of the present
genus is limited in extent, and is not found throughout the whole of the plant on which it
is growing, but is confined to certain portions of the stems or leaves. The mycelium of
most of the species is perennial, that is, the mycelium which has produced a crop of
spores one year, will the next year, under ordinary circumstances, produce another crop in
or near the same place. One species, however, and possibly others are annual, the spores of
one year not following those of another in the same place. The kinds of distortion pro-
duced vary with the species, but it is probable, although not absolutely certain, that the
same species produces different deformities when growing on different species of plants.
This we might perhaps account for by a difference in the histological character of the two
plants, but exactly why two different species of Gymnosporangium parasitic on the same
individual cedar, should produce two widely distinct deformities is less easily explained.
In the mere appearance of the mycelium itself, one can not see any cause for the different
growths produced.
The explanation is evidently to be sought in the amount and extent of the mycelium,
the rapidity of its growth, and its duration. Thus in a rapidly growing annual species, as
G. macropus, we have a large, rather spongy excresence which shrivels in drying. In G@.
JSuscum var. globosum, which is perennial, and of slower growth, the excrescence is more
dense and scarred externally. In G@. biseptatum the mycelium is comparatively limited in
amount, and does not increase rapidly, and in consequence, the formation of the annual
woody layers is not prevented, nor the nutrition of the branches above much interfered
with. The mycelium is found principally in the region of the cambium, and acts rather
as a stimulant than as a destructive agent, and the result is that a nodose swelling is formed
in consequence of the unusual development of the wood in the region of the fungus.
In G@. Eilisii, which like the previous species, grows on Cupressus thyoides, there is a
more luxuriant and rapidly growing mycelium, which extends for some distance along the
smaller branches, and is so abundant as to interfere with the nutrition and, in consequence,
the branches above become short and stubby, and, at length, densely fasciculated, the
branch below the fungus remaining unchanged, so that we have, instead of a nodose swel-
ling, a dense tuft of short branches borne on the end of a normal branch. In other
species the mycelium traverses the leaves, which are distorted throughout, so that the
branches infested by the fungus and those free from the fungus, seem to belong to differ-
ent species, so regular is the hypertrophy of the leaves. In this connection it may be
remarked that in some places the distortions are not altogether due to the direct action
of the fungi themselves, but are produced in part by the secondary action of the disor-
dered nutrition combined with the effect of the weather. Nor can one infer from the
OF THE UNITED STATES. 11
amount of the gelatinous expansion on the exterior, how destructive a particular species
is to the plant on which it is growing. G*. macropus, for example, is much more striking
to the eye than G. clavipes, but the latter is more destructive to the plants upon which
it grows.
GyMNoOspoRANGIUM Exuisi (Berk).
Plate 2, figs. 13-17.
Podisoma Ellisii Berke., Grevillea, Vol. 11, p. 56; Farlow, Bull. Bussey Inst., Vol.
u, p. 226. Exsicc. Thiimen, Herb. Mycol. Oeconom., 440.
Hamaspora Ellisii Kérnicke, Hedwigia, Vol. xvi, p. 22.
Gymnosporangium Eillisvi, in Ellis’s North American Fungi, Fase. m1, No. 271.
Sporiferous masses numerous, scattered, cylindrical, filiform, from one-eighth to a quar-
ter of an inch high; spores dark yellow, linear-fusiform, obtuse, usually 3-4 celled, some-
times 1-5 celled, 10u-16u in diameter, 75u-190u long, average 120u-150u; pedicels long
and slender; promycelia short and much curved, usually one from each cell. Mycelium
perennial, distorting the smaller branches.
On Cupressus thyoides.
Newfield, N. J. (Ellis); Newton, Dedham, Wood’s Holl, Mass. (Farlow).
This is one of the many interesting species of fungi discovered by Mr. J. B. Ellis at
Newfield, N. J. Previous to May, 1872, when it was first seen by Mr. Ellis, the species
was quite unknown, although it is apparently not uncommon in the so-called cedar swamps
along our eastern coast. It is the smallest and least gelatinous of the genus, but the
trees attacked by it may be recognized, even at a considerable distance, by the peculiar
distortions, which consist in a dense fasciculation of the smaller branches in different parts
of the tree, so that, when viewed from a distance, one sees closely branching tufts of a
somewhat fan-shaped or corymbose outline, which appear to terminate some of the
branches. The fungus itself is only visible on close inspection. The branches affected are
thickly covered with the sporiferous masses, which, when dry, are of a reddish-brown color,
not very different from that of the bark itself, and which, when moistened, are orange-col-
ored, and not generally more than from an eighth to a quarter of an inch long. The spe-
cies is often associated with G. biseptatum which produces an entirely different distortion,
affecting generally the larger branches. The leaves themselves are, however, but little dis-
torted by the present species. The mycelium of G. Zilisii is of rather large size and in
cross sections of the stems is seen to follow the medullary rays, sometimes extending
nearly to the centre of the stem, and occasionally forming partial circles between the an-
nual rings. In longitudinal sections of affected branches one sees the mycelium collected
in brownish spots which extend far into the wood. The greater part of the mycelium is
found near the cambium and it collects in masses in the bark to form the sporiferous bodies
which originate at some little distance beneath the surface. The mycelium is perennial and
extends gradually along the branches sometimes for a distance of eighteen inches, and
they swell to about once and a half their normal diameter.
12 FARLOW ON THE GYMNOSPORANGIA
The spores of G. Eilisii are very striking and differ from those of the rest of the genus
in being very long and narrow and in being usually more than two-celled, the most usual
numbers being three and four. The amount of jelly in the sporiferous masses is less than
in other species, and in consequence dried specimens give a better idea of the fungus as it
appears in nature than is generally the case in the present genus. The promycelia are
very abundant and very short, the lower sterile part found in other species beimg almost
wanting and the part bearing the sporidia being much curved, so that the promycelia com-
ing from the cells of one spore sometimes wind round and enclose another spore, making
dissection difficult without tearing off the promycelia. One not unfrequently finds spores
in which the upper cell is more or less deeply cleft, as in Pl. 2, fig. 17.
In spite of the fact that in certain details, @. Eilisii differs from the majority of the
other species of Gymnosporangium it seems to me that Ko6rnicke’is not warranted in
establishing a new genus Hamaspora, founded on two species, G. Ellisii growing on
Cupressus thyoides and Phragmidium longissimum Thiim. growing on Rubus rigidus
at the Cape of Good Hope. In the first place, the gelatinous substance is not wanting m
G. Ellisii, as can easily be seen in examining fresh specimens, and furthermore,
the fact that the spores are more than two-celled is equally true of G. biseptatum, a
species which undoubtedly belongs to Gymnosporangium. On the other hand, in 1. long-
issima Kornke., admitting that the teleutospores bear a great resemblance to those of
G. Ellisii, the specimen in Mycotheca Universalis, No. 542, shows an abundance of uredo-
spores surrounded by the circle of large paraphyses generally found in the uredo-spots of
Phragmidium, while in G. Eilisii there are no uredo-spores at all. When we consider
also that the species of Phragmidium generally occur on species of Rubus or related gen-
era, and Gymnosporangium only on Coniferae, it would certainly seem that H. longissima
should be kept in Phraemidium where it was placed by Von Thiimen, and that G. Hilisi
should be retained in Gymnosporangium. Iam perfectly willmg to admit that the last
named genus approaches the former, but the matter is not helped by creating a third
genus less clearly marked than either of the others.
The present is more limited in its range than our other species, as far as at present
known. It probably has often been overlooked, on account of its small size, and may
occur wherever the white cedar, Cupressus thyoides, is found. It is certainly common in
such localities in Massachusetts, and in passing from Boston to Washington by railroad,
I have seen the peculiar distortions along the whole route wherever the white cedar
occurred.
GYMNOSPORANGIUM CLAVARIAEFORME De Cand.
Gymnosporangium clavariaeforme D. C., Flore frangaise, Vol. 1, p. 217; Reess, loc. cit., p.
21. Exsicc. Ellis, North American Fungi., Fase. m1, 273.
Podisoma clavariaeforme Duby, Bot. Gall., Vol. m1, p. 881. Oersted, Nouveaux essais de
semis. Pl. 5 and 4.
Podisoma Juniperi communis Fr., Syst. Mye., Vol. m1, p. 548.
1Hedwigia, Vol. xv1, p. 22.
OF THE UNITED STATES. 1133
Podisoma Juniperi Cooke, Decades of Maine Fungi,’ p. 185; Notes on Podisoma,’ Pl. 19,
fig: 1.
Sporiferous masses numerous, scattered or aggregated, yellowish-brown when dry,
bright yellow when swollen, cylindrical or slightly compressed, acute or occasionally
forked at the apex, from a quarter to half an inch high, spores narrowly lanceolate, those
on the outside of gelatinous masses clavate, two-celled, 15u-—19u broad, by 55u—90u long ;
promycelia usually one or two from each cell. Mycelium perennial, causing long fusiform
swellings of the branches.
On Juniperus communis.
Portland (C. B. Fuller); Cape Elizabeth, Me. (E. C. Bolles); Maine, without locality,
in Herb. Curtis (M. B. Blake, No. 579). Northern and Central Europe.
Apparently not a common species in the United States and known to me only as occur-
ring in Maine. It is said by Mr. C. B. Fuller to be common on the ground cedar in the
islands in Portland Harbor, and some of the specimens collected by him were distributed
by Ellis in North American Fungi. The species is not known to occur on leaves in the
United States, but is found on the larger branches, which swell for a considerable distance
to nearly twice their normal size, and become cracked on the surface. The sporiferous
masses are quite yellow when swollen, and are not dark colored when dry, as in the case
in G. fuscum. They are rather slender and pointed at the apex, and, although sometimes
a little flattened, are not decidedly compressed as in some other species. I have never in
American species seen the apex flattened and expanded, as is shown in the figure of Bul-
lard referred to the present species by DeCandolle. The Portland specimens collected by
Mr. Fuller bear the closest resemblance to No. 1088, of Rabenhorst’s Fungi Europaei,
Series Nova. The spores, compared with those of our other two-celled species, are long
and narrow. ‘Those borne on the outside of the gelatinous masses are clavate, or have
the upper cell broader than the lower, and obtuse at the apex, but the spores in the
interior are attenuated at both extremities as in G. macropus, but they are distinctly
longer and more slender than the latter. The promycelia are, as a rule, fewer in number
than in G. macropus, and one generally sees only one or two given off from each cell.
In Europe the species is said also to occur on the leaves of Juniperus communis,
and probably a close examination of plants affected will show that such is the case also in
this country. The specimen in Herb. Curtis collected by Mr. Blake, is not in sufficiently
good condition to show the shape of the sporiferous masses, but the spores suffice to show
that the specimen belongs to the present species rather than to G. fuscum.
GYMNOSPORANGIUM MACROPUS Lk.
Plate 2, figs. 1-6.
Gymnosporangium Juniperi virginianae Schw., Syn. Fung. Carol., Sup., p. 74, No. 504.
1822.
Gymnosporangium macropus Link, Species Plantarum, Vol. vi, part 2, p. 128. 1825.
Exsicc. Ellis, North American Fungi, Fasc. 3, No. 270.
Podisoma Juniperi virginianae Fr., Syst. Myc., Vol. 1m, p. 57. 1832.
1Proc. Portland Soc. Nat. Hist. Vol. I, 1m, 1869. ? Journal of Quekett Microscopical Club, Noy. 1871.
14 FARLOW ON THE GYMNOSPORANGIA
Podisoma macropus Schw., Syn. Fung. Am. Bor., p. 507, No. 5096, 1851; London
Jour. Bot., Vol. rv, Pl. 12, fig. 6; Sprague’s Contributions to New England Mycology,*
p- 829; Curtis’s Plants of North Carolina, p. 121; Peck’s 25d Report, p. 57; Notes on
Podisoma, Pl. xrx, fig. 3; Grevillea, Vol. 3, p. 56. Exsicc. Ravenel, Fung. Car., Fase.
1, No. 85; Thiimen,? Mycoth. Univers., No. 148.
Sporiferous masses aggregated in globose tufts, surrounded at the base by a ring formed
by the raised epidermis and subepidermal tissue of the host-plant, orange-yellow, cylindri-
cal, acuminate, half an inch to an inch long or, at times, longer ; spores ovate-acute, two-
celled, generally constricted at the septum and with a papilla at the apex, 15u-20u broad
by 45u-60u long; promycelia generally four from each cell. Mycelium annual, producing
globose or reniform knots in the smaller branches.
On leaves and smaller branches of Juniperus virginiana.
Common from Massachusetts to South Carolina (Ravenél, Mellichamps), and extending
west to Missouri (Englemann), Colorado (Palmer), and Wisconsin (Lapham).
The common “cedar apple” of the Atlantic States, an? the most striking species of
the genus. It is very abundant along the seaboard, but becomes rarer in the west. The
knots together with the sporiferous masses, often measure three inches across when swollen.
When dry the sporiferous masses are much shrunken, and as the knots do not differ much
in color from the branches, they are not well seen from a distance. The species was first
described by Schweinitz, in 1822, under the name of G. Juniperi virginianae. Link in
1825, described it in the Species Plantarum (Linnaeus and Willdenow), under the name of
G. macropus, but why the Schweinitzian name was suppressed, or why Link placed the
species in Gymnosporangium rather than Podisoma, a genus of his own creation, is not
clear. In 1831, in the Syn. Fung. Am. Bor., Schweinitz adopted Link’s specific name, but
placed the species in Podisoma, and it has generally been known since as Podisoma
macropus Schw. Fries, however, retained Schweinitz’s original specific name, and called
our plant Podisoma Juniperi virginianae. Notwithstanding that Schweinitz’s name given
in the Syn. Fung. Carol. Sup., is the oldest, it must be abandoned in consequence of the
confusion and awkwardness which has arisen from applying the compound names Junipert
virginianae, Juniperi communis, Juniperi Sabinae, ete., to denote the different species.
The present species, moreover, is by no means the only one found on J. virginiana, and
it is on all accounts desirable to retain the name given by Link, and afterwards adopted by
Schweinitz himself, at least as far as the specific name is concerned.
The mycelium of G. macropus is abundant, and easily seen. It is found principally in
the leaves, and there are haustoria which enter the parenchymatous cells. The fungus
causes the leaves to swell, and finally ruptures them at about the central portion. One
then sees a rounded mass tipped with the comparatively unchanged apex of the leaf. In
some cases the gelatinous columns are produced when the knot is quite small, so that not
1Proe. Boston Soc. Nat. Hist., Vol. v. 1856. sisted in sending a letter with a drawing of the fungus to
2 Streinz, Nomenclator Fungorum, p. 455, gives Wyman Berkeley, asking the name of the species. The letter and
as the authority for the species and in this error he is fol- Berkeley’s reply that the fungus was Podisoma macropus
lowed by Von Thiimen. The Wyman in question was Prof. Schw. were published in London Jour. Bot., loc. cit.
Jeffries Wyman, whose only connection with the species con-
OF THE UNITED STATES. 15
more than two or three columns can find attachment, but generally the knots grow to
from half an inch to an inch and a half in diameter, before the gelatinous masses break
through the surface. The latter arise a short distance below the surface, and the outer
portion of the knot consisting of several layers of cork cells is raised in flattened papillae.
By the growth of the gelatinous masses the centre of each papilla is ruptured, and the
columns risé vertically. The margin of the raised papilla remains behind, as a sort of
collar around the base of each sporiferous mass.
The shape of the fully developed knots is peculiar. In consequence of the fact that
the cells of the outer part of the knots multiply more rapidly than those near the base, the
knots become convex on the upper side and finally reniform, and are contracted beneath
and attached by a small base. It has generally been supposed that the knots are usually
outgrowths from the smaller branches, but such is not the case and, as far as I have been
able to ascertain, they originate in a leaf. When the knots have attained a considerable
size they appear to be terminal, because the branch above is pushed to one side. The
young knots begin to appear about the end of August, and often reach a considerable size
before winter. In the latitude of Cambridge, the gelatinous masses do not naturally
appear before May or, exceptionally perhaps, in April, but if knots are gathered in Febru-
ary or March and placed in a warm, moist place, they may be made to appear in from ten
days to a fortnight. The knots persist after the sporiferous masses have been quite washed
away, and from silvery-gray become brown and spongy, the surface being honeycombed,
the depressions being the spots from which the gelatinous masses have disappeared. In
by far the majority of cases, the knots gradually dry and drop off after having borne one
crop of spores. In rare instances, however, a new knot may grow from one side of the
old knot and bear a second crop of spores, but in this case the two portions remain
quite distinct, one part being old, shrivelled and weather-worn, and the new part succu-
lent, brownish-gray, and covered with sporiferous masses. By the nature of the knots
alone one can distinguish between this and the following species. The latter is perennial,
and between the sporiferous columns of one year one can easily see the scars of the last
year’s masses.
As far as concerns the gross appearance presented by G. macropus, the account given
by Schweinitz in the Syn. Fung. Am. Bor. is quite accurate. He states that the spe-
cies is rare in North Carolina, but common in Pennsylvania. He remarks also “ capitulum
persistit per annum,” from which one may infer that he recognized that the species was an
annual, a fact which succeeding writers have not sufficiently regarded. His description of
the cedar-apples themselves is so minute and accurate that there can be no doubt that
Schweinitz had either never seen the form described on a succeeding page as G. fuscum
var. globosum, or at any rate clearly distinguished it from G. macropus. In the letter of
Wyman, published by Berkeley in the London Journal of Botany, Vol. rv, p. 316, an ac-
count is given of the germination of the spores and the distortions supposed to be produced
by G. macropus, but it is evident from the description that Wyman had confounded G.
macropus and G. clavipes. He says “I have made numerous searches for these parasites,
but have almost never detected them, except in the localities mentioned, viz.: the tufts
composed of acerose leaves and the “cedar apple.” The tufts with acerose leaves are not
identical, as I believe, with the variety of form which occurs in the young shoots of the
16 FARLOW ON THE GYMNOSPORANGIA
J. virginiana, described in Bigelow’s Med. Botany and by yourself (Sir J. W. Hooker to
whom the letter was originally addressed), in the Flora Boreal. Amer., also in the
description of the J. bermudiana in the London Journal of Botany for March 1843. The
form of the leaf is in both cases acerose, but the tuft to which I refer forms a single dense
mass, the twigs so crowded together as scarcely to allow the light to pass through, looking
at a distance like the nest of some bird. These masses vary in size from that of the first
to eighteen inches in diameter. Generally not more than one mass is seen on the same
tree, sometimes, however, two or three. I have never seen a single tuft like those described
in which the fungus in question was not present, and this is the result of a great number of
observations.” Ths description of the acerose leaves and the dense growth of the
branches, which look in the distance like bird’s nests, is excellent, but the species which
causes this distortion of the branches is not G. macropus but G. clavipes, a distinct species
as we shall see hereafter, and one haying no connection with the cedar-apples proper.
The figures of Wyman represent the spores of G. macropus, except that some of them
appear to be germinating at the tip in the mode characteristic of G. clavipes.
The species is very widely distributed and is, as a rule, very common, but is not recorded
in some localities where one would have expected it. Mr. Peck informs me that it is not
common near Albany, N. Y., and it is not mentioned in Tuckerman’s Catalogue of the
Plants growing near Amherst. It is certainly very common in Eastern Massachusetts,
New Jersey, Pennsylvania and Maryland, and although said by Schweinitz to be rare in
North Carolina, has been found by Ravenel and Mellichamps to be common in South Car-
olina. The comparative scarcity of J. virginiana in the Western States would account
for the absence of G. macropus in many Western localities. The injury done to the trees
affected is comparatively slight, as was remarked by Schweinitz, and the reason for this is
apparent if we consider the short duration and the mode of growth of the mycelium. The
cedar-apples are said to be used as anthelmintics and the United States Dispensatory gives
as the dose ten to twenty grains three times a day. In Massachusetts the use of the apples
as medicine is, as far as I can ascertain, unknown, and the practice is probably confined to
Pennsylvania and the Southern States.
The spores of G. macropus are pretty uniformly ovate and acute at both extremities,
and although they bear a certain resemblance to those of G. clavariaeforme, they are
markedly shorter and broader. Schroeter suspects that G. macropus is only a form of
the last-named species, but the fact that there is a difference in the spores and that one is
annual and the other perennial, not to mention the difference in habit, clearly forbids a
union of the two.
GYMNOSPORANGIUM FUSCUM De Cand.
Gymnosporangium fuscum D. C., Flore francaise, Vol. 11, p. 217; Reess, loc. cit., p- 16.
Podisoma Juniperi Link., Observ. 1, p. 9; Species Plantarum, Vol. v1, part uo, p. 127;
Sprague in Proc. Boston Soc. Nat. Hist., Vol. v, p. 329; Frost in Tuckerman’s List of
Plants of Amherst.
Podisoma Juniper Sabinae Fr., Syst. Mye., Vol. m1, p. 508.
OF THE UNITED STATES. ily
Podisoma fuscum Duby, Bot. Gall., Vol. u, p. 881; Cramer, Ueber den Gitterrost der
Birnbiiume, PI. t.
Podisoma Sabinae Oersted, Om en saeregen hidtil ukjendt Udvikling, etc., Pl. 1.
Sporiferous masses numerous, generally approximated, brownish when dry, dark orange
when swollen, a quarter to half an inch high, compressed-conical, or wedge-shaped,
upper margin thick, rounded, sometimes notched ; spores roundish ovate, two-celled, fre-
quently constricted at the septum, 38u—553u long, by 15u—22u broad; upper cell either
nearly hemispherical or obtuse ; promycelia generally four from each cell. Mycelium
perennial, causing long swellings of the branches.
On stems of Juniperus virginiana and J. communis.
Near Boston (Sprague); Amherst, Mass. (Frost); Catonville, near Baltimore, on im-
ported species of Juniperus, (Farlow). Europe.
This species, although apparently common in Europe, is, in its typical form, rare in the
United States. It has frequently been confounded with Gym. clavariaeforme from which
it differs in the shape and color of the sporiferous masses, which are in G. fuscum usually
thick and wedge-shaped with a blunt margin, and of rather a dark, blackish brown
color, especially when dry, while in G. clavariaeforme they are rather slender and cylin-
drical. It also differs in the shape of the spores, which are shorter and stouter in G. fus-
cum, and usually give off four promycelia from each cell. The spores vary considerably in
outline, those on the surface being more decidedly oval and with a thick dark cell-wall,
while those in the interior of the jelly are more acute and with thinner cell-walls. As
is the case with -most of the species where the promycelia are given off near the sep-
tum, the two cells at maturity retract from one another at the outer margin and only
remain slightly adherent at the centre. The mycelium is found principally in the stems
which have attained a certain thickness and causes them to swell for a distance of several
inches. The sporiferous masses rupture the outer bark in elliptical spots which may be
isolated, or, as is more frequently the case, are rather closely approximated.
In American catalogues and herbaria one rarely finds the specific name fuscum applied
to the present species, but it usually figures under the name Podisoma Juniperi Lk., and
occasionally as P. Juniperi Fr., which is incorrect, as there is no proper P. Juniperi Fr.,
the name given by Fries to the present species being P. Juniperi Sabinae. The name P.
Juniperi Lk., it must be remarked, has been rather loosely applied in this country to sev-
eral distinct species, and when occurring in catalogues of fungi allowance has to be made
for the determination. In Herb. Curtis, for instance, of the different specimens marked P.
Juniperi, Lk., one from Maine is G. clavariaeforme; one from Pennsylvania (Michener,
949) and one from Hillsboro, N. C., collected by Curtis himself, are G. clavipes, and one
from Sprague is G. fuscwm. Specimens which may with certainty be referred to G. fus-
cum are fewin number. The specimens of Frost, which I have been unable to examine,
were on J. communis. Of Sprague’s specimens one in the collection of the Boston So-
ciety of Natural History, and one in Herb. Curtis are the true @. fuscum on what appears
to be J. virginiana. The spores in Sprague’s specimens are rather more slender than in
European specimens, being 46u-57u long by 15u-19u broad, but in other respects they are
quite typical. Whether the P. Juniperi of Schweinitz, Syn. Fung. Am. Bor., No. 3095, is
to be referred to the present species or to G. clavariaeforme is uncertain, the original
18 FARLOW ON THE GYMNOSPORANGIA
specimen which I have examined not being in condition to be determined with accuracy.
The only instance where I have myself seen the species growing was on the estate of Mrs.
Lerman at Catonville near Baltimore, where several imported Junipers were, in May 1879,
badly affected by a fungus which was without doubt G. fusewn. I have never collected
the present species on J. virginiana, but besides the specimens of Sprague already men-
tioned it was found by Tulasne on J. virginiana in France. I am indebted to my friend
Dr. Cornu for an opportunity of examining a portion of Tulasne’s specimen and it
seems to me that the fungus in that case is the same as that collected by Sprague and
referred to G. fuscum. Dr. Cornu,’ however, distinguishes between Podisoma Juniperi
Sabinae and P. fuscum, and it is to the first named form that he thinks the specimens
found by Tulasne on Juniperus virginiana should be referred. The P. fuscwm on J.
Phoenicea figured by Gasperrini has been separated by Cooke as a new species under the
name of G. Phoeniceae.
GYMNOSPORANGIUM FUSCUM, var. GLOBOSUM Farlow.
Pl. U figs. 7-11.
Podisoma fuscum Cooke, in Notes on Podisoma, p. 10, 1871; Peck, in 25th Report,
New York State Botanist, p. 89, 1873; Farlow, in Bull. Bussey Inst., Vol. mu, p. 225.
Sporiferous masses densely aggregated, dark brown when dry, yellowish orange when
swollen, a quarter to half an inch high, compressed conical or wedge-shaped ; spores ovate,
sub-acute, 38u—45u long, by 19u—21u broad ; promycelia usually four. Mycelium perennial,
forming globose swellings in the branches.
On the smaller branches of J. virginiana.
From Massachusetts (Farlow) to South Carolina (Mellichamp).
The present form probably passed for a variety of P. macropus with earlier writers pro-
vided it was observed by them at all. It was first noticed by Cooke from specimens col-
lected by Peck, in Notes on Podisoma, and was referred by him to P. fuscwm Duby. In
Peck’s Report for 1871, published in September, 1873, the species was also referred to P.-
fuscum. It is very common in the Atlantic States on Juniperus virginiana, on which it
forms globose knots resembling those made by G. macropus in some respects, but smaller
and less striking. The mycelium is perennial and abounds in the stems and leaves. ‘The
fungus, unlike G. macropus, does not break through the central part of the leaf, but bursts
through the stem at the point of attachment of the leaves, and the knots formed do not
assume the reniform outline so common even in the early stages of G. macro-
pus, but are more nearly globose and on the surface. appear of a dark mahogany color,
rather than silvery gray as in G. macropus. The knots grow comparatively slowly and
last for several years, bearing several successive crops of spores. The sporiferous masses
rupture the surface irregularly and they are not surrounded by so distinct a ring at the
base as is the case in G. macropus. 'The gelatinous masses are broad and flattened at the
1Présence du Podisoma Juniperi Sabinae sur le Juniperus Vol. 25, p. 122. 1878.
virginiana et sur divers autres Genévriers: Bull. Soc. Bot.,
OF THE UNITED STATES. 19
base and taper upwards, but are comparatively broad and flattened even at the apex.
The scars left by the sporiferous masses of the previous year are distinctly visible between
the bases of the newly formed masses. The knots seldom attain a great size and rarely
exceed an inch in diameter. They usually appear to be terminal on the smaller branches,
but sometimes they form nodes in the continuity of the branches., In course of time the
surface of the knots becomes grayish and irregular by the action of the weather, but they
are always more compact and harder than the knots of G. macropus. The leaves are not
usually distorted by the fungus, but when the knots are large, the leaves on the upper
branches above the knots become somewhat hypertrophied.
What we have called variety globosum, is certainly common in the Eastern States. It
often accompanies G!. macropus, and is in Eastern Massachusetts about as common as that
species, and Mr. Peck states that it is still more common in the region of Albany. How
far west the variety extends is unknown. The southern limit, as far as I can ascertain, is
Bluffton, S. C., where it was collected by Dr. Mellichamp. Although often accompanying
7. macropus, and like it producing what are popularly called “ cedar apples,” there is no
doubt that the present form is distinct from it as is shown by the fact that it is perennial
and not annual, and by the very different character of the knots formed, and the appear-
ance of the sporiferous masses. A very slight experience will enable any one to distin-
guish between the two at sight. The only question which can arise is whether the fungus
in question is distinct from G. fuscum, and on this point it is not so easy to give a decided
answer. The variety, if indeed it be not a distinct species, differs entirely from the type
in the character of the distortions produced on the same host-plant, J. virginiana, and it
may be said with considerable truth that the same species of fungus could not produce
two such different distortions in the branches of the same species of plant. The sporif-
erous masses, however, are in shape and color much like those of G. fuscum, and
the spores themselves, the size and shape of which, at the best, are variable even in the
same species, although in general smaller than in G. fuscum, are not sufficiently distinct
to allow one on the strength of their smaller size alone, to separate the fungus as a dis-
tinct species. The question is, does not the smaller size of the spores in connection with
the peculiar distortions caused by the fungus warrant one in regarding it as different from
G. fuscum? I think it quite possible that the two are distinct, but am unwilling to speak
positively without more information with regard to the mode of occurrence of G. fuscum
on J. virginiana in Europe. So far as I know, however, the globose distortions are
unknown in Europe, the only case known to me where a globose mass is figured, being in
Cooke’s notes on Podisoma, Pl. 19, fig. 2, but it is not there stated whether the figure
was drawn from a European or an American specimen.
GYMNOSPORANGIUM BISEPTATUM Ellis.
Pl. 2, figs. 18-21.
Gymnosporangium biseptatum Ellis, in Bulletin of Torrey Club, Vol. v, p. 46, 1874; Far-
low in Bull. Bussey Inst., Vol. um, p. 226; Vize in Grevillea, Vol. vit, p. 11; Harkness
and Moore, Catalogue of the Pacific Coast Fungi, p. 25. Exsicc. Ellis, North American
Fungi, Fasc. 11, No. 272.
20 FARLOW ON THE GYMNOSPORANGIA
Sporiferous masses flattened and brownish when dry, becoming hemispherical or oval
and rugose when swollen, and of a light yellow color, about a quarter of an inch high;
spores linear-oblong, obtuse, two to six celled, most frequently three or four celled,
5(u—S4u long, by 15u-20u broad; promycelia one or two from each cell. Mycelium per-
ennial, forming node-like swellings in the branches.
On leaves and stems of Cupressus thuyoides, Newton, Dedham, Wood’s Holl, Mass.
(Farlow) ; Newfield, N. J. (Ellis).
On Libocedrus, Yosemite, Cal. (Harkness and Moore).
A striking species first found by Mr. Ellis in New Jersey, and although only known
apparently in a few localities it is probably common on Cupressus thuyoides throughout
the Atlantic States. It often accompanies G. Ellisiit for which, however, it cannot pos-
sibly be mistaken. As in that species the distortions produced by G. biseptatum can be
seen ata considerable distance. The mycelium is perennial, and is found in the leaves and
branches, principally in the latter.
In the leaves the mycelium produces no perceptible distortion until the sporif
erous masses appear. There is only one mass to a leaf, and it is first seen as a
brownish elliptical protuberance emerging from the edge of the leaf. In the stem
the distortions are marked and may be seen at a distance. The mycelium is found
principally in the region of the cambium, and oval or oblong swellings are formed
from one to two inches long, the bark becomes distended and cracked, and the sporiferous
masses are found in the fissures, at first in small pulvinate tufts which on swelling form
shapeless masses of rather a light yellow. The swellings increase year by year, and at
length become very marked, the fungus growing constantly outwards, and producing
fresh crops of spores year after year. The swellings are sometimes found in the main
trunk of the tree, and I have seen them more than a foot in diameter. However large
they may become, the heart wood generally remains firm and hard, and does not become
spongy and riddled with holes as is the case with the branches attacked by G. Eilisit,
which on the whole is decidedly more injurious to the trees than G’. biseptatum.
The spores of the present species are characterized by the great variability in the
number of cells of which they are composed. The most usual number is three or
four, two are rather common and occasionally there are as many as six. ‘The spores are
rather stout and obtuse, and generally constricted at the septa. When mature and about
to produce the promycelia it is usual for the different cells to separate from one another
either wholly or in part, as is well shown in Pl. 2, fig. 20. The spores of the present
species when fully grown are not easily mistaken for those of any other species, but the
young tufts on the leaves often bear spores which are all, or nearly all, two-celled. I have
received specimens from Mr. Ellis, with the fungus confined to the leaves, and it was diffi-
cult to say to what species to refer it. Large sets of specimens collected at Newton, how-
ever, show that while the young spots on the leaves may have principally two-celled
spores, those on the smaller branches have about an equal proportion of two and three
celled spores, and the still older spots have a large proportion of three-celled spores. In
short, the variability is so great that without a large set of specimens, one would have
difficulty in convincing himself that the extreme forms belonged to the same species.
OF THE UNITED STATES. 21
Like G. Ellisii, the present species, although occurring in localities as remote as Massa-
chusetts and California, is known in only a few localities, but where it occurs it is
generally abundant. There can be no doubt whatever, in spite of the unusually large
number of cells of which the spores are composed, that the species should be placed in
Gymnosporangium, and the number of cells only goes to strengthen the view that Hama-
spora cannot be kept as a distinct genus.
GYMNOSPORANGIUM CLAVIPES Cooke and Peck.
Podisoma gymnosporangium, var. clavipes C. and P., in Notes on Podisoma, 1871.
Gymnosporangium clavipes C. and P. in Peck’s 25th Report, p. 89; Farlow, Bull. Bussey
Inst., Vol. 1, p. 226; Exsicc. Ravenel’s Fungi Americani Exsiccati, No. 272.
Podisoma Juniperi Herb. Curtis in part.
Gymnosporangium sp. Herb. Curtis in part.
Sporiferous masses subpyriform or irregularly globose becoming indefinitely expanded,
reddish yellow when dry, orange when swollen, about a quarter of an inch high; spores
broadly ovate, obtuse, two-celled, generally constricted at the septum ; pedicels broad, much
swollen beneath the spores, 40u-60u long by 22u-358u broad; promycelia usually two or
three from a cell, frequently produced from the apex of the cells. Mycelium perennial
in the leaves and branches, producing nest-like distortions.
On Juniperus virginiana.
Eastern Massachusetts (Farlow); New York (Peck); New Jersey (Ellis); Pennsylvania
(Michener) ; North Carolina (Curtis); South Carolina (Ravenel).
One of the most unsightly species of the genus and certainly common in the Atlantic
States from Massachusetts to Florida. The mycelium is abundant in the leaves and
branches and produces peculiar distortions already referred to under G. macropus. The
leaves swell to double their original size and become sharp pointed and rather spreading.
The effect produced will be seen by comparing figs. 22 and 25 of Plate 2, where fig. 23
shows a twig with normal leaves, and 22 one attacked by G. clavipes. The branches
are somewhat swollen and the branching of the affected ones becomes very dense, so
that at a distance it appears as if there were bird’s-nests in the boughs. The branches
are often distorted for a distance of a foot or a foot and a half. The sporiferous masses
are very abundant on the leaves and branches. Those on the leaves appear at their bases
where they are adherent to the stems. They are at first broadly obovate, but
soon become either subpyriform or irregularly globose and much wrinkled, and after
having been exposed to a few showers they become quite amorphous, and form discol-
oured films on the leaves and branches. On the branches the sporiferous masses are very
similar to those on the leaves, but they are rather larger and more irregular in shape.
When young and dry, they often are reddish rather than brown, and lack the deep brown
color generally seen in the early stages of other species. The mycelium is apparently
perennial, but I am not entirely certain on that point.
22 FARLOW ON THE GYMNOSPORANGIA
The spores differ in several respects from those of the species already described. They
are usually two-celled, but it is not at all unusual to find three cells, as is shown in Plate
2, fig. 25. They are broadly ovate, and attached to pedicels which, instead of being of
nearly equal diameter throughout, as in the other species, are very much swollen just
below the spores, in fact often more so than is shown in figs. 24 and 25. The breadth of
the upper part of the pedicels, however, varies with the state of expansion of the spor-
iferous masses, being especially broad when they are young, and slenderer when they are
old. The base of the spores where the pedicels are attached is very broad, and when the
masses are quickly swollen, especially by means of re-agents, the inner portion of the
pedicels expands more rapidly than the outer part, and the latter is ruptured just below
the spore, so that there is left a hyaline ring surrounding the pedicel at the base of the
spore. .
The growth of the promycelia is peculiar in G. clavipes. As a rule the promycelia of
the other species are given off from the cells near the part where they are in contact with
one another, and they are either single or double, or, as is very frequently the case, four
are given off at diametrically opposite points. Occasionally one sees a promycelium form-
ing at the apex of the spore, and such a case, occurring in G. macropus, is shown in Pl. 1,
fig. 6. In G. elavipes it is very common for promycelia to be formed at the apex as
shown in Pl. II, fig. 27, and another promycelium near the septum. The most peculiar
form is that shown in fig. 26, where the spore has fallen from its pedicel, and a
promycelium is produced both at the apex and the base. This form I have not found to
be common, but it can be seen without difficulty.
The present species, in spite of some striking peculiarities, presents a general resem-
blance to G. conicum, which is common enough in Northern Europe, but is rare in this
country, if indeed it occurs at all. G. clavipes was first separated from G. conicum in
consequence of the swollen pedicels and the formation of promycelia at the apex ob-
served by Peck. Curtis, judging from the specimens in his herbarium, did not distin-
guish G. clavipes from Podisoma Juniperi Lk. which is the same as the G. fuscum of the
present article, for the specimen of Michener No. 4830, from Pennsylvania, and a speci-
men collected by Curtis himself at Hillsboro, N. C., certainly belong to G. clavipes. A
- second specimen from Society Hill, 8. C., marked simply Gymnosporangium, also belongs
to the present species. The question whether G. clavipes is merely a form of G. con-
icum or not, is not easily answered. The general appearance of the sporiferous masses
is the same, and if the distortions produced are different, it may be said that that may
be accounted for by the fact that m Europe G. conicum grows on J. communis, while
what we call G. clavipes grows on J. virginiana. The swollen pedicels, even admitting
that the amount of the swelling varies in different specimens, has not been noticed in
European specimens of G. conicum, and, although Oersted figures one spore in which
the promycelium is given off from the tip in G. conicum, it seems nearly certain that no
European species has the apical form of germination, unless exceptionally. Taking these
facts collectively, I should think that G. clavipes was a distinct species peculiar to
America, and that it was not quite certain that the true G. conicum occurs with us.
A few forms which can hardly be included in G. clavipes, I should refer to G‘. conicum
with a doubt.
OF THE UNITED STATES. 23
GYMNOSPORANGIUM conrIcuM, De Cand.
Gymnosporangium conicum D. C., Flore francaise, Vol. 1, p. 216; Reess, loc. cit., p. 26.
Gymnosporangium Juniperi Lk., Obs. 1, p. 9; Species Plantarum, Vol. v1, part 2, p. 127;
Schweinitz, Syn. Fung. Am. Bor., No. 5094; Berkeley, Outlines, Pl. 1, fig. 5; Curtis,
Plants of North Carolina; Peck, in 25th Report; Frost, in Tuckerman’s Cat. Amherst
Plants.
Gymnosporangium juniperinum Fr., Syst. Mye., Vol. 11, p. 506; Exsicc. Ravenel, Fungi
Carol., Fasc. v, 87.
Podisoma juniperinum Oersted, Nouvelles Observations, 1866.
Podisoma Gymnosporangium Cooke, Notes on Podisoma, Pl. 18, fig. 2.
On Juniperus communis. Northern and Central Europe.
On Juniperus virginiana, Newton, Mass. (Farlow); New York State (Peck); South
Carolina (Ravenel).
Sporiferous masses, subpyriform or indefinitely expanded, orange colored, half an inch
high; spores oblong, two-celled, constricted at the septum, 45u—58u long, by 15u—18u
broad; promycelia either two or four from each cell, given off near the septum. Mycelium
perennial, forming long swellings in the branches.
As before said, the determination of American specimens of the present species is
very unsatisfactory. The name Gymnosporangium Juniperi Lk., to be sure, often
appears in catalogues of American fungi, but in many cases the determination is evidently
doubtful, and I have not thought best to accept it in several cases, but have formed
my opinion rather on specimens actually collected by myself or belonging to authentic
collections. In most instances the species is said to occur on Juniperus virginiana. In
Tuckerman’s Catalogue of Amherst Plants, it is reported by Frost as growing on J. com-
munis, but I have not been able to examine Frost’s specimens, which probably belong to
the true G. conicum. In the Bulletin of the Minnesota Academy of Sciences for 1876,
the species is said to have been found on living branches of various trees, a statement
which is probably inaccurate, and tends to make the determination doubtful. As far as my
own experience goes, I have only once found a form which was probably to be referred to
G. conicum, and, in that case, the fungus was in such a condition that an accurate deter-
mination was out of the question. Of all the specimens which I have examined, the
No. 87, Fasc. v, of Ravenel’s Fung. Carol., and two specimens in Herb. Curtis, collected
by Ravenel on the Santee Canal in 1848 and 1850, come nearest to the true G. conicum.
There is also a specimen in the Sprague collection which may belong to this species.
Without larger sets of specimens in good condition one can not well say whether the
specimens referred to may not belong to other species. Most specimens marked G. Juni-
pert Lk. which I have seen were gathered after the fungus had been exposed to the rain
some time, and the only character by which one could be guided was the mode of germi-
nation of the spores, which, as I have said is generally that found in G. clavipes, and I am
not sure that all the so-called G. Juniperi recorded on J. virginiana is not to be referred
to G. clavipes. More material and further study are necessary to settle that pot, and it
is not impossible that some European botanist may discover that G. conicwn has at times
the same swollen pedicels and apical germination as G. clavipes. If that turns out to be
24 FARLOW ON THE GYMNOSPORANGIA
the case, our common G. clavipes must be regarded as a variety of G. Juniperi, but, as the
matter now stands, I must believe that the two are distinct, and that the existence of G.
conicum in the United States rests only on a few specimens resembling G. clavipes in habit,
but which, as far as can be made out from specimens which as a whole are in poor condi-
tion, have longer and slenderer spores on pedicels which are not perceptibly thickened
below the spores, and whose promycelia are in twos or fours near the septum.
RogEstTevtiA Rebent.
Aecidia usually hypophyllous, lower part sunk in the swollen tissues of the leaves, form-
ing, above, cylindrical, conical, or oblong projections which are often split and fringed in
the upper part, peridium composed of large, colorless cells, spores brownish or orange-
colored, subglobose when mature, formed in moniliform rows. Spermogonia punctiform,
forming minute dark-colored pustules in discolored spots on the upper surface of the
leaves. Mycelium infesting the leaves and stems of different Pomeae.
The old genera Aecidium, Roestelia, and Peridermium cannot be distinguished from one
another except in an arbitrary way. The species of Peridermium are parasitic on differ-
ent Coniferae, the Roesteliae on species of Pomeae, and Aecidium proper is very widely
diffused. Wolff! considers that Peridermium Pini is the aecidial form of Coleosporium
Senecionis, and De Bary and Hartig have connected other Peridermia with Chrysomyxa
aud Calyptospora. The Roesteliae differ from the species of Aecidium in the fact that
the peridium is elongated in a more or less tubular form, whereas in Aecidium it is
short. But in forms like R. penicillata (Sow.) the peridium is comparatively short, while
in Aecidium Fraxini Schw. the peridium is so long that in the Syn. Fung. Am. Bor. it
was placed by Schweinitz in Roestelia. In his work, Untersuchungen tiber die Brand-
pilze, De Bary considered it to be a distinguishing mark of Roestelia that the spores were
not formed from all the cells of the sporiferous filaments but from every other cell, so that
the spores hung together for a short time by the shrivelled sterile cells. Reess adopts the
same view, but more recently De Bary? has stated that similar sterile cells are found in
other genera than Roestelia and they are certainly found in Caeoma luminata Schw.
and in species of Aecidium which I have examined. The cells which form the peridium
are, like those found in Aecidium, large and colorless, with thick walls which
generally have peculiar markings. They are only loosely adherent, and although they
may cohere to one another in longitudinal rows, the rows, especially at the upper end of
the peridium, soon separate from one another and form a fringed mouth to the perid-
ium. In some species, however, the cells at the apex remain united and those below sep-
arate from one another so as to form a sort of lattice-work, through the meshes of which
the spores escape.
The spores of Roestelia are more or less angular, when young, from mutual pressure,
but when mature they generally become globose. They are almost always of a brownish
color, but in one of our species they are orange-colored. The wall of the spores is double,
consisting of a rather thick endospore and a thin exospore. The endospore is perforated
1 Beitrag zur Kentniss der Schmarotzerpilze, Landwirthsch. 2 Bot. Zeit., 1869, p. 786.
Jahrb., 1877.
OF THE UNITED STATES. 25
with a number of holes, usually from five to ten, and it is through these holes that the ger-
minal tubes protrude. Reess considers that the number of pores can be used as a means of
distinguishing species, but my experience shows that the number is variable in the same
species. The spermogonia are small and found in clusters in discolored spots on the
upper surface of the leaves, where they are seen as brownish black dots. The spermatia
are punctiform and are almost identical in all the species of the genus.
The Roesteliae are very abundant on the leaves of our different thorns and fruit trees,
and they are also found on the fruit. In some cases they cause distortions of the stems,
which swell to twice their original size and become cracked and very irregular, or, if the
‘stems attacked are small and flexible they often become much recurved. The presence of
members of this genus in the leaves is indicated by yellowish or reddish spots in which
the spermogonia appear first on the upper surface, while the aecidia do not become visible
until after a considerable interval in most cases. The amount of swelling produced in the
leaves by the aecidia varies much in the different species. In some it is only slight,
often in the form of a ring, but in others prominent ovoid or conical projections are found.
The duration of the mycelium is a point of importance in considering the connection be-
tween Roestelia and Gymnosporanguim. Certainly in some cases it seems to be perennial,
but supposing that there is a genetic connection between the two genera just named, one
would expect the Roesteliae to be annual products of the germinating sporidia of the differ-
ent Gymnosporangia. The date of the appearance of the different species is also of import-
ance in attempting to connect any particular Roestelia with a given species of Gymnospo-
rangium. Some species, as £2. penicillata, mature in May and June, almost simultaneously
with the Gymnosporangia, while other species, as R. botryapites, do not ripen until the
middle of September or October. From an economical point of view, the Roesteliae
are of considerable importance, since they attack the leaves of so many of our fruit trees,
causing them to fall prematurely, and some of the species attack the yonng fruit as well
as the leaves.
The determination of the species from their anatomical structure is attended with many
difficulties. The principal characters used are the gross appearance of the spots and swell-
ings and the microscopic characters of the spores and the cells of the peridium. Too
many species depend upon the amount of splitting of the peridium which evidently must
depend to a large extent upon the age of the latter and accidental circumstances. The
species of Roestelia are, moreover, not limited to a single host-plant, and one must nat-
urally expect modifications of the swellings and of the peridium according as the Roestelia
is parasitic on different hosts.
ROESTELIA BOTRYAPITES Schw.
Caeoma (Roestelia) botryapites Schweinitz, Syn. Fung. Am. Bor., No. 2902.
Roestelia Ellisii Peck, Bull. Torrey Club, Vol. vu, p. 13. Exsicc. Mycoth. Univers., No.
431.
Roestelia botryapites Schw., Berkeley in Grevillea, Vol. v, p. 34; Farlow, Bull. Bussey
Inst., Vol. 11, p. 2265.
Aecidia hypophyllous, borne in tuberculated or pyriform protuberances about an eighth
of an inch high, sometimes solitary, usually densely aggregated or consolidated, 3-14,
26 FARLOW ON THE GYMNOSPORANGIA
usually 7-8 together ; peridia cylindrical, contracted at the base, brownish-white, an eighth
of an inch long, composed throughout of long, sinuous, smooth-walled cells, 12u—15u in
diameter, which cohere at the apex and separate below in meshes so that the peridium is
clathrate. Spores brownish, 15u-19u in diameter, epispore slightly granular, pores indis-
tinct. Spermogonia few in number in the depressed upper part of the leaves.
On the leaves of Amelanchier canadensis.
Eastern Massachusetts (Farlow) ; Newfield, N. J. (Ellis); Bethlehem, Pa. (Schweinitz).
A striking species which does not mature until the middle of September or the first of
October, the spermogonia appearing in the latter part of August. It is distinguished from
our other species by the large-sized tubercles which appear in dense clusters on the under
surfaces of the leaves, from which protrude the long peridia which resemble those of FR.
cancellata in having the cells coherent at the apex and separate below, so that the peridium
becomes clathrate, the spores being discharged through the meshes. The peridia, how-
ever, are less broad and bulging than in &. cancellata and the microscopic character of the
cells is very different. In RR. botryapites they are longer and more slender than in any
of our other species, and the cell-walls are destitute of the papillose or granular markings
found in most of the species. They are also so sinuous and so long that an accurate meas-
urement of their length is out of the question. The different cells, instead of overlapping
at the extremities as in 22. cancellata, fit closely together, and the apical cells, instead of
being shorter and broader than those below as in the species last named, are of about the
same breadth and shape throughout. In fact, so narrow and smooth are the cells and so
closely are they united to one another at the extremities that, on seeing them for the first
time under the microscope, one would be more likely to suppose them to be some brownish
mycelium than a collection of peridial cells. The spores of &. botryapites are, on the
average, smaller than those of our other species. The fungus forms reddish-yellow spots
on the leaves of Amelanchier in which the spermogonia are developed in comparatively
small numbers, and when the swollen masses of the leaf in which the aecidia are borne
appear, the upper surface bearing the spermogonia becomes depressed. The tubercular
masses are much contracted at the base, and when fully mature they drop from the leaves,
only a small scar remaining. The cells of the tubercles abound in starch grains, in this
respect resembling f. cancellata.
The present species is very common in Eastern Massachusetts and has probably a wider
range than one would infer from the very few recorded localities. It is frequently seen in
entomological collections, and the large tubercles with their small bases certainly remind
one more strongly of insect galls than the work of fungi, at least until the peridia have
protruded. The Schweinitzian species remained for a long time obscure, but it was redis-
covered by Ellis at Newfield, N. J., and named by Peck G. Hilisii. Berkeley is quoted in
Grevillea, loc. cit., as having ascertained the identity of the two species from the examina-
tion of an original specimen of Schweinitz. There is a specimen from Schweinitz in Herb.
Curtis, but the peridia and spores are not mature. As far, however, as can be judged from
its present condition, it seems to be the same as specimens collected by Ellis.
OF THE UNITED STATES. PATS
ROESTELIA TRANSFORMANS Ellis.
Roestelia transformans Ellis, Bull. Torrey Club, Vol. v, p. 3; Farlow, Bull. Bussey Inst.,
Vol. 1, p. 255. Exsicc. Thiimen, Mycoth. Univers., No. 1029.
Aecidia hypophyllous, or covering the young shoots and fruit, borne in conical protub-
erances, occasionally 3-4, generally 5-20 or more together, consolidated at the base ; perid-
ium brownish-yellow, a tenth to a twelfth of an inch long, at first conical but soon becom-
ing lacerated ; cells of peridium isodiametric at apex, below long and narrow, 12u-15u in
diameter, not overlapping on the inner side, cell-wall papillose ; spores globose, brownish,
18u-22u in diameter, cell-wall nearly smooth. Spermogonia few in number in purplish-
red spots on the upper side of the leaves.
On the leaves, fruit and young shoots of Pyrus arbutifolia and on the leaves of Pyrus
malus.
Newfield, N. J. (Ellis); Newton, Gloucester, Wood’s Holl, Mass. (Farlow).
This species, which occupies an intermediate position between R. botryapites and R.
cancellata, is common on Pyrus arbutifolia in Eastern Massachusetts. It occurs in three
forms. On the leaves it forms purplish-red spots and the aecidia are generally compara-
tively few in number and rather slender. On the fruit they are more numerous and
shorter, and when the fungus is found on the young shoots they swell to several times
their original size, and become much curved and twisted and take on a yellow color. The
number of aecidia produced on the stems is very large. The aecidial protuberances are
rather acutely conical and more slender than in either &. botryapites or PR. cancellata ;
they readily fall from the leaves as in the first-named species. It is only in the young con-
dition that the cells of the peridia cohere at the apex, and, as generally seen, the peridia
are lacerate. The peridial cells resemble those of &. cancellata but are more slender and
do not project inwards. The spores resemble those of L. botryapites.
What seems to me the same species was collected on apple leaves near the Bussey Insti-
tution, Jamaica Plain, Mass., but did not seem to be common. The species is probably
common near the sea-shore, but is actually recorded in but few places. It is not likely to
escape observation wherever it occurs for the purple spots on the leaves and the distorted
shoots are very striking.
ROESTELIA CANCELLATA Rebent.
Roestelia cancellata Rebent, Fl. Neom., p. 350, Pl. u, fig. 9; Curtis, List of Plants of North
Carolina, p. 123; Oersted, Om en saeregen, etc., Pl. 1 and m1; Reess, loc. cit., p. 20;
Decades of Maine Fungi, p. 180; Grevillea, Vol. v, p. 151.
Aecidium cancellatum Schweinitz, Syn. Fung. Carol., No. 433.
Caeoma roestelites Lk., Spec. Plant., Vol. v1, part 2, p. 164; Schweinitz, Syn. Fung. Am.
Bor., No. 2900.
Aecidia usually hypophyllous, borne in the swollen tuberculated substance of the leaves,
consolidated at the base in clusters of 4-20 ; peridia yellowish-white, a twelfth to an eighth
28 FARLOW ON THE GYMNOSPORANGIA
of an inch long, broadly ovate, acute and closed at the apex, clathrate below ; peridial cells
thick-walled, surface papillose, isodiametric, about 58u, coherent at the apex of peridium,
below united in longitudinal rows; cells about 20u thick by 60u—80u long, the upper end
of each cell projecting inwards and overlapping the base of the cell above ; spores brown-
ish, roundish-angular, 25u to 30u in diameter, cell wall thick, pores well marked. Sper-
mogonia numerous in the discolored upper surface of the leaves.
On leaves of apple and pear trees.
Westbrook, Me. (Bolles); Bethlehem, Pa. (Schweinitz); North Carolina (Curtis) ;
California (Harkness). Europe.
The typical 2. cancellata is common in Europe and is easily distinguished. It has been
published in several series of exsiccati of which I need only mention Libert, No. 394, and
Thiimen, Mycoth. Univers., No. 537, where the specimens are very characteristic. The aeci-
dia are borne in swollen parts of the under surface of the leaves, but the swellings are by no
means so large as those of 2. botryapites and they are broad at the base, not constricted as
in the last-named species. Although the peridium bears some resemblance to that of R.
botryapites and FR. transformans, it is distinct in having the upper end of the cells pro-
longed inwards in the form of a papilla. The peridial cells are quite different from those
of LR. botryapites but resemble more closely those of FR. transformans. ~ LR. cancellata
must be considered a rare species in the United States as far as at present known. It is
only known in doubtful cases in Eastern Massachusetts and it is not enumerated by Peck
among the Roesteliae of New York. The fungus mentioned under the name of L. cancel-
lata in Bull. Bussey Inst., Vol. un, p. 225, does not seem to me really to be that species.
The only specimens which I have examined of the Aecidium cancellatum of the Syn.
Fung. Car. Sup. and of Caeoma roestelites Syn. Fung. Am. Bor., were in poor condition,
and certainly were not typical &. cancellata, and although mentioned in Curtis’s list as
occurring in North Carolina, there are no specimens in Herb. Curtis to mark the locality.
Considering that the species is easily recognized from European specimens, there would
probably be no difficulty in recognizing it if it occurred with us. One thing is certain, that
the very common Roestelia found on apples in the autumn in Eastern Massachusetts is not
R. cancellata. The present species is generally found on the leaves only, but is said also
to attack the smaller branches.
ROESTELIA CORNUTA (Ehrh.) Fr.
Aecidium cornutum Pers. in Gmel. Syst. Nat.
Caeoma cylindrites Link, Species Plantarum, Vol. v1, part 2, p. 64, in part; Schweinitz in
Syn. Fung. Am. Bor., in part?
Roestelia cornuta Fr., Summa Veget. Scand., Vol. m1, p. 510; Oersted, Nouvelles Observ.,
Pl. iv; Reess, loc. cit., p. 28; Peck, 24th Report; Farlow, Bull. Bussey Inst., Vol.
u, p. 225; Tuckerman’s Plants of Amherst.
Ceratitium cornutum Rabenh., Bot. Zeit., 1851, 452.
Centridium sp. Chevallier, Desmaziéres, et al.
OF THE UNITED STATES. 29
Aecidia hypophyllous, in pulvinate, orange-colored thickenings of the leaves,
densely agglomerated, 10-40 together, often arranged in a circle ; peridia yellowish-brown,
cylindrical-acute, recurved, generally entire but when old becoming fimbriate; peridial
cells large, polygonal, coherent throughout, thick-walled, 38u—15u broad by 58u—76w long ;
spores yellowish-brown, surface slightly papillose, roundish-angular, 18u—22u in diameter ;
spermogonia numerous in reddish-yellow spots on the surface of the leaves.
On the leaves of Pyrus americana, Amelanchier canadensis, Crataegus sp.
Eastport, Maine (Farlow); Amherst, Mass. (Frost); New York (Peck); Ithaca, N. Y.
(Dudley). Northern and Central Europe.
This species in its typical form is common on the leaves of Pyrus americana at East-
port. The spots on the leaves are of a brilliant reddish-yellow color, the spermogonia
very numerous and the aecidia crowded together in a circle, the swelling of the leaf being
in the form of a circular elevation and not at all tubercular as in the preceding species.
The peridia are long and recurved and preserve their shape for a considerable time, be-
coming at length lacerate. In this, its typical form, it is more robust than R. lacerata,
and the peridial cells are broader and thicker. The form which occurs on Amelanchier
has fewer aecidia in a cluster, the substance of the leaf around their bases is more dis-
tinctly tubercular, and the peridia are shorter and more acute than in the form on the
mountain ash, approaching, perhaps, 2. lacerata. The occurrence of R. cornuta on
species of Crataegus in the United States possibly requires confirmation. I have speci-
mens on C. crus-galli which may perhaps be referred to R. cornuta but am not certain.
None of the Schweinitzian specimens of Caeoma cylindrites which I have examined seem
to belong to the present species, but possibly some of the varieties mentioned under that
head in the Syn. Fung. Am. Bor. may be placed here.
ROESTELIA LACERATA (Sow.) Fr.
Aecidium oxyacanthae Pers., Syn., 206.
Aecidium Mespili and oxyacanthae D.C., Flore francaise, Vol. v1, p. 98.
Aecidium laceratum Sow., British Fungi, Pl. 318. Exsicc. Ravenel, Fungi Carol., Fase.
Ve 20:
Aecidium crataegi var. oxyacanthae Schweinitz, Syn. Fung. Car. Sup., No. 432.
Caeoma cylindrites var. Crataegi punctatae, var. arborescentis and var. C. oxyacanthae
Schweinitz, Syn. Fung. Am. Bor., No. 2899.
Roestelia lacerata Fr., ‘Suan Weret Scand., Vol. m1, p. 510; Sprague, Contrib. to New
England Mycol., p. 329; Decades of Maine Fungi, p. 180; Pecks 22d and 24th Reports ;
Farlow, Bull. Bussey Inst., Vol. 11, p. 255; Tuckerman, Plants of Amherst; Harkness
and Moore.
Aecidia hypophyllous, sometimes on the stems and young fruit, seated on the yellow
pulvinate thickening of the leaves, slender, cylindrical or somewhat subulate, recurved,
densely clustered, 5-30 together; peridia yellowish-white, rather delicate, soon splitting
and becoming fimbriate, the divisions not extending to the base of peridium; cells of
peridium narrow, 20u broad by 55u—75u long ; spores brownish, roundish-oblong, surface
30 FARLOW ON THE GYMNOSPORANGIA
finely granulated, 19u-24u in diameter. Spermogonia in yellowish spots on the upper
surface of the leaves.
On leaves, stems, and fruit of Crataegus crus-galli, C. punctata, C. coccinea, C. tomen-
tosa, O. oxyacantha, and other species; on leaves and fruit of Amelanchier canadensis,
and on leaves of wild and cultivated apples.
Common from Maine (Bolles) to South Carolina (Mellichamp), and west to Missouri
(Engelmann).
This is decidedly the most common species found with us, and it abounds on all wild and
cultivated species of Crataegus and apples. On the one hand the species approaches PR.
cornuta, from which it is distinguished by being more slender, and when young, splitting
into segments which become fimbriate, and by the narrower peridial cells. On the other
hand, it approaches ?. penicillata with which, in fact, it is united by some authors. Te:
lacerata is more variable than most of our species, and I can distinguish the following
forms. On C. tomentosa and other species of Crataegus the aecidia are borne on small,
slightly swollen spots, and the peridia are large and diverge from one another. Our form
is precisely the No. 556 of Westendorp and Wallys. The form on Amelanchier is the
Aecidium Mespili D.C., and the swellings of the leaves are more strongly marked, and
the peridia shorter than in the form last described. Our smallest form is found on apple
leaves. The spots are bright yellow and the aecidia are few in number, often only 1-3,
and occupy the centre of the spot. Possibly this last form might be separated as a dis-
tinct species. It is, apparently, not the variety Mali of the Syn. Fung. Am. Bor. The
specimen in Mycotheca Universalis, No. 732, collected by Ellis at Newfield, N. J., labelled
R. lacerata, f. Mali, is said by Von Thiimen to be synonymous with Aecidium cancella-
tum of the Syn. Fung. Carol. Sup., but on what authority the statement rests is uncertain.
ROESTELIA PENICILLATA (Sow.) Fr.
Aecidium penicillatum Pers., in Gmel. Syst.
Aecidium Mali Schum., FI. Saell., Vol. 11, 222.
Aecidium laceratum D. C., Flore Francaise, Vol. v1, p. 98.
Caeoma cylindrites, var. Mali Schweinitz, Syn. Fung. Am. Bor., No. 2899.
Aecidium pyratum Schweinitz, Syn. Fung. Am. Bor., No. 2896.
Roestelia penicillata (Sow.) Fr., Summa Veget. Scand., Vol. m1, p. 510.
Ceratitium penicillatum Rabenh., Bot. Zeit., 1851. 452.
On leaves and fruit of Pyrus malus and Pyrus angustifolia and fruit of Amelanchier
canadensis.
Eastern Massachusetts (Farlow); Santee Canal, 8. C. (Ravenel).
Same as P. lacerata, but aecidia smaller and frequently concentrically arranged, peridia
splitting to the base, the divisions very numerous, revolute, fimbriate, formed of one or
more rows of cells.
The present species, if indeed it is not a form of the one last described, does not appear
in American Catalogues as distinct from &. lacerata. It is not uncommon and seems to
OF THE UNITED STATES. 31
attack the fruit more frequently than F. lacerata. The Aecidium pyratum of Schweinitz,
Syn. Fung. Am. Bor., is probably the same as FR. penicillata. I am indebted to the
officers of the Academy of Natural Sciences of Philadelphia for the privilege of examining
the original specimen in their collection and I have also specimens from Ravenel and
Curtis which do not differ from the type. Although it is unusual to find F. penicillata on
Crataegus in this country, what seems undoubtedly that species was collected by Prof. W.
R. Dudley on C. crus-galli at Ithaca, New York.
ROESTELIA HYALINA Cooke.
Roestelia hyalina Cooke, in Bull. Bot. Soc., 1877, pp. 314, 315; Hedwigia, Vol. xvn, p.
38; Grevillea, Vol. v1, p. 137. Exsicc. Ravenel, Fungi Americani, No. 37.
Aecidia hypophyllous, borne few together in subpyriform tubercules ; peridia pointed,
cylindrical, delicate, splitting longitudinally ; peridial cells rhombic-ovate, about 35u broad
by 55u long, cell-walls thin, nearly smooth ; spores globose, 19u—22u in diameter. Spermo-
gonia few, in yellowish spots on the upper surface of the leaves.
On leaves of Crataegus.
Aiken, 8. C. (Ravenel).
This species is only known to me by the single small specimen in the Fungi Ameri-
cani Exsiccati, from which the description above given was taken. The specimen bears a
close resemblance to some forms of R. Jacerata, but the cells of the peridium are thin
walled and destitute of the markings generally seen in the other species. The spores in
my specimen are distinctly brownish and not orange colored as given in the description in
Hedwigia, loc. cit. As it may be that there was an error in distribution, I quote the origi-
nal description. ‘Epiphylla, vel amphigena. Maculis rufis. Soris convexis brunneis.
Pseudoperidis cylindrico-acuminatis, longitudinaliter et unilateraliter dehiscentibus. Spo-
ris globosis, aurantiacis, .02-.022 mm.”
ROESTELIA AURANTIACA Peck.
Roestelia aurantiaca Peck, in 25th Report, p. 64, Pl. 1, figs. 10-12; Bull. Buffalo Soc.
Nat. Sci., Vol. 1, p. 68; Tuckerman’s Plants of Amherst ; Farlow, Bull. Bussey Inst.,
Vol. u, p. 225. Exsicc. Ravenel’s Fungi Americani, No. 217.
Roestelia lacerata Herb. Curtis in part.
Aecidia densely aggregated on the young fruit and swollen stems; periuia erecu or
slightly recurved, an eighth to a quarter of an inch in length, cylindrical, tubular, shining
white, coarsely toothed at the apex, teeth seldom extending more than a quarter of the
length of the peridium; cells of peridium squarish-ovate, closely united, about 55) long
by 36u broad, cell wall very thick and striate. Spores bright orange, spherical or slightly
angular, 27u to 47u in diameter, average 30u—40u, cell wall thick, punctate, pores distinct.
Spermogonia in discolored spots on the leaves.
32 FARLOW ON THE GYMNOSPORANGIA
On unripe fruit and stems of Crataegus crus-galli, C. punctata, C. oxyacantha and other
species of Crataegus, on Amelanchier canadensis and on cultivated quinces and apples.
Not rare from Massachusetts (Farlow), Vermont (Frost), New York (Peck), to North
Carolina (Curtis), South Carolina (Ravenel), and Missouri (Engelmann).
By far the most beautiful species of the genus which we have, at once attracting the
popular eye by its brilliant orange or almost cinnabar colored spores and shining white
peridium. It is generally found on the young fruit, though it is occasionally found on the
stems and petioles, but I do not recollect having seen aecidia on the leaves. What I take
to be spermogonia of this species are found on the leaves apart from the aecidia. f.
aurantiaca is often accompanied by R. lacerata, but one cannot consider the former to be
a form of the latter, which grows on the fruit rather than leaves, for the differences in the
spores and cells of the peridium are too marked to warrant any such supposition. The
peridia of the present species are more rigid than those of our other species, and the cells
cohere throughout, except at the tip where the peridium splits into comparatively few
short teeth, and does not become lacerate or penicillate as in most of the species. The
spores are large for the genus Roestelia, and instead of the brownish tinge common in
other species, they are bright orange. The cell-wall is quite thick and striate. In drying,
the spores become pale, but their size and cell-wall even then are sufficient to distinguish
present from other species.
R. aurantiaca is represented in Herb. Curtis by several specimens, including some col-
lected by himself in North Carolina. He apparently considered them all forms of £. lac-
erata, at least, they are so labelled. The species is particularly apt to attack the different
species of Crataegus, and the peridia attain a large size on the small berries of that genus.
It is reported by Peck to occur on Amelanchier, but I have never myself seen it on that
host. Perhaps the most striking form is that which is often found on quinces in Eastern
Massachusetts. I have collected specimens in Newton and I have received others from
Pepperell, Miss Freeman; and from near Salem, Mr. Robinson; and there are specimens
in Herb. Curtis and the Sprague collection from Mr. John Russell. One sometimes sees
a quince two inches in diameter more than half covered by the bright orange aecidia
and occasionally small apples are affected in a similar way. . aurantiaca is generally
found in midsummer, I have, however, seen it on C. crus-galli as late as October.
After the preceding detailed account of the species of Gymnosporangium and Roestelia
of the United States, one naturally wishes to know how far the view first promulgated by
Oersted is confirmed by cultures made with American species. Oersted recognized three
species of Gymnosporangium, and, at first, four species of Roestelia growing in Denmark.
He was afterwards induced to believe that two of the supposed Roesteliae, R. Jacerata and
R. penicillata, were only forms of a single species, and he considered that he had proved
that G@. fuscum was connected with R. cancellata; G. clavariaeforme with R. lacerata,
including in that the form &. penicillata; and G. conicum with R. cornuta. Thus,
there were no superfluous species of either genus in Denmark, that is, there was no
species of one genus which could not be matched with a species of the other genus.
OF THE UNITED STATES. 53
From the account already given, it will be seen that I recognize the following species,
and the question which I have unsuccessfully tried to answer is, what species with us are
genetically connected. To sum up the species, we have:
GYMNOSPORANGIUM. ROESTELIA.
G. Ellisii. R. botryapites.
G. clavariaeforme. RK. transformans.
G. macropus. R. cancellata.
7. fuscum. RF. cornuta.
G. fuscum var. globosum. R. lacerta.
G. biseptatum. ~ BR. penicillata.
G. clavipes. R. hyalina.
G. conicum ? RR. aurantiaca.
It will be seen that I have mentioned eight species of each genus which could on
anatomical grounds alone be considered distinct. Of the species enumerated, G. conicum
is given as doubtful, because it seemed to me that sufficiently abundant material was want-
ing to enable any one to speak with certainty. G. fuscwm var. globosum, it will also be
borne in mind, is not by several writers considered distinct. With the possible exception
of the two species just mentionéd, the validity of the species of Gymnosporangium is not
likely to be much questioned. Turning to the Roesteliae, we have RF. lacerata and R.
penicillata enumerated, which are by many writers united on anatomical grounds, apart
from any developmental considerations, and f. cancellata, a species whose presence, or,
perhaps better, whose distribution in the United States is not sufficiently well known in
my opinion. In speaking of &. lacerata, also, one must not forget that, even in the lim-
ited sense in which I have adopted it, it appears under a good many different forms which
some botanists on anatomical grounds alone might consider distinct.
If one is disposed to admit the eight species of each genus with the limitations I have
given, he might suppose that the task of tracing the connection between them would be
comparatively simple and interesting. A very slight experience, however, would con-
vince him of the contrary. In the first place, if we accept the conclusions of Oersted as
correct with regard to the Danish species, knowing that two and perhaps all three of the
Danish Gymnosporangia are found in the United States, we are struck with the fact that,
although G. fuscum, regarding var. globosum as distinct, and the true &. cancellata, its
supposed aecidial form, are about equally common, or rather equally rare, with us, when we
come to G. clavariaeforme, the case is different, for the Gymnosporangium is not at all
common, while its presumed aecidium, 2. lacerata, is very common, indeed being found
hundreds and even a thousand miles from localities where G. clavariaeforme is known.
About the comparative distribution of G. conicum, and its corresponding F. cornuta,
little can at present be said, since the localities of G. conicum are not well known. Yet,
in general, what is supposed to be G. conicum is best known towards the South, while
RR. cornuta is northern in its range, unless, indeed, that species properly includes some of
the forms now included in R. lacerata. Wf, on the other hand, with some writers we
regard the var. globosum as identical with G. fuscum of Europe we are, in looking at the
distribution, met with the difficulty that G@. fuscum var. globosum is very common in Mas-
sachusetts, for instance, whereas its supposed aecidium, R. cancellata, is not known with
34 FARLOW ON THE GYMNOSPORANGIA
certainty to occur at all, and where, at least, the common Roestelia on apple leaves is cer-
tainly not R. cancellata.
At first sight, then, we would not admit the correctness of Oersted’s views with regard
to particular species without further inquiry, and one naturally resorts to artificial cultures.
These may consist in sowing the germinating sporidia of the different species of Gymno-
sporangium either on leaves of different Pomeae, kept moist under bell-glasses, or on the
young plants themselves. The former mode is more convenient, but has this objection
that, although after sowing sporidia on the leaves spermogonia may appear in from about
eight days to a fortnight, yet the interval is so great between the production of sperm-
ogonia and the development of the aecidia, from which alone the species can be with cer-
tainty determined, that the leaves, kept in a moist place, are almost sure to be destroyed
by moulds before the aecidia have developed. Cultures made with the young plants
themselves permit the development of the aecidia, but for mechanical reasons they
are less easy to manage, and one is also obliged to keep a series of plants on which no
sowing has been made, in order to make it comparatively sure that the mycelium of the
Roestelia was not in the plants before the cultures began. I have, as a rule, made use of
leaves only because the amount of space at my control was limited, and because it was
difficult for me to procure young plants of some of the species required for cultures.
The season of the year when the subject must necessarily be studied, the latter part of the
spring, is, moreover, one when numerous occupations prevent my devoting as much of
my time to the cultures as I should like.
In the spring of 1875, I procured two plants of Amelanchier canadensis about a foot
high, and sowed upon the leaves the sporidia of G. macrogus which were seen by micro-
scopic examination to be in good condition. Nothing resulted from it. Iwas led to
begin with this experiment because the most striking Gymnosporangium in the region of
Boston is G. macropus, and one of the most prominent Roesteliae is 2. botryapites which
grows only on Amelanchier, and both species are peculiar to America. Since 1875 I have
repeatedly made attempts by cultures to demonstrate the connection between our different
species. The species with which I have experimented are G. macropus, G. fuscum var.
globosum,' G. Ellisii, G. biseptatum, and G’. clavipes, all common near Boston.
I. May, 1876.
G. clavipes sown on 6 Amelanchier leaves. No result.
G. Ellisii on 6 apple leaves, three Amelanchier leaves, and two leaves of Crataegus
tomentosa. No result.
G. macropus on 3 leaves of Crataegus tomentosa, 6 apple leaves, 4 Amelanchier leaves.
Spermogonia formed on one leaf of C. tomentosa.
G. globosum on 3 leaves of Crataegus tomentosa, 3 of Amelanchier, and 3 of apple.
Spermogonia appeared on all the leaves of Crataegus.
II. May, 1876.
G. macropus on two small pear seedlings. No result.
G. globosum on one young plant of Crataegus oxyacantha. No result.
Ill. June, 1876.
G. globosum on 5 leaves of Crataegus tomentosa. No result.
G. macropus on 3 leaves of Amelanchier. No result.
1 For sake of brevity this form is given under the name of G. globosum in the following tables.
OF THE UNITED STATES. 35
G. clavipes on 3 leaves of Amelanchier. No result.
Nore. The cultures of 1876 were made at the laboratory of the Bussey Institution. Those made in June
continued only 17 days, but no result being then obtained the laboratory was closed for the season.
IV. May, 1877.
G. macropus on 3 leaves of apple, 3 of Amelanchier, 3 of Crataegus tomentosa, and 3
of Pyrus arbutifolia. Spermogonia appeared on one leaf of Amelanchier and one of
C. tomentosa in ten days.
G. globosum on 3 leaves of apple, 3 of Amelanchier, 3 of Crataegus tomentosa, and 5 of
Pyrus arbutifolia. Spermogonia appeared on ali the leaves of Crataegus.
G. biseptatum on 3 leaves of Crataegus tomentosa, 5 of apple, 3 of Amelanchier, and 5
of Pyrus arbutifolia. Spermogonia appeared on one leaf of Crataegus in six days.
G. Ellisii on 3 leaves of apple and 3 of Amelanchier. No result.
Nore. The cultures of 1877 were made at the Bussey Institution, and lasted from May 25th to July 4th.
V. June, 1878.
G. macropus on 3 apple leaves, 5 of Crataegus oxyacantha, 3 of C. crus-galli, and 3
of pear. No result.
G. Ellisii on 3 apple, 3 pear, 3 C. oxyacantha and 3 C. crus-galli leaves. No result.
G. biseptatum on 3 apple, 5 pear, 3 C. oxyacantha and 3 C. crus-galli leaves. No
result.
G. globosum on 3 pear, 5 C. oxyacantha, 5 C. crus-galli, and 1 apple leaf. No result.
Vi.
G. Ellisii on two pear seedlings and on two young plants of C. tomentosa. No result.
G. macropus on an apple seedling and 2 plants of C. tomentosa. No result.
Being absent from Cambridge in 1879, no cultures were made, and the cultures of 1880
present no result worth detailmg, as no spermogonia were produced.
In reviewing the record given above, one is struck with the small number of cases in
which spermogonia succeeded the sowings on the different Pomeae. Certainly a sufficient
variety of leaves was selected, for it is on Amelanchier, Crataegus, Pyrus arbutifolia, and
cultivated apples and pears that the greater part of our Roesteliae are found in nature.
That the sporidia used were in good condition was shown by microscopical examination.
In running over the list, it is seen that the only plants on which spermogonia were pro-
duced were Crataegus tomentosa and Amelanchier canadensis. Those on Amelanchier
followed the sowing of the spores of G. macropus, but, inasmuch as three species of Roes-
telia are known on that plant, it is impossible to say to which the spermogonia belonged.
What is surprising, however, is that of the three species of Gymnosporangium which
were followed by spermogonia on C. tomentosa, viz.: G. macropus, G. globosum, and G.
biseptatum, not one is the species which, according to Oersted, ought to produce our com-
mon form on C. tomentosa, namely RR. lacerata. Accepting his view one would hardly
have been led to expect spermogonia on such a host plant from three species so distinct
from G. clavariaeforme. Further, we are not allowed to suppose that the production of
spermogonia on C. tomentosa indicates any close resemblance between the three different
Gymnosporangia. It might, perhaps, be said, considering how much more frequently the
spermogonia followed the sowing of G. globoswm than of the other two species, that
where the spermogonia appeared to follow the latter, it was really because some of the
36 FARLOW ON THE GYMNOSPORANGIA
sporidia of G. globosum had become mixed with those of the two other species. Such
a supposition is possible in the case of G. macropus which often grows in company with
G. globosum, but it can hardly be true of the G. biseptatum in question, which grew in
a deep swamp remote from G. globoswm, and the specimens of which were collected and
covered with care to prevent a mixing of the spores with those of other species.
Whether we consider the distribution of our species or the results of the cultures made,
there is nothing to confirm the views of Oersted as to the connection of particular species.
In this connection, I would refer to a paper by Rathay known to me only by the abstract
given by Magnus in Bot. Zeit., 1880, p. 798. The method of culture adopted by R&thay is
unknown to me, but he came to the conclusion that PR. penicillata belonged not as a form
of R. lacerata to G. clavariaeforme, but to G. fuscum. If then our G. fuscum var. globo-
sum be really a variety of G. fuscum, and if R. penicillata be a form of R. cancellata as
supposed by Rathay, then the spermogonia on C. tomentosa, which so frequently followed
the sowing of the sporidia of G. globosum, might be supposed to belong to what I have
called L?. penicillata, which does occur on Crataegus in the United States. One could not
be at all certain, however, without seeing the fully developed aecidia, but it must not be
forgotten that thove who are fully imbued with the belief that the different aecidial genera
as Aecidium, Roestelia, etc., are stages of Puccinia, Gymnosporangium, ete., accept the ap-
pearance of spermogonia alone, without having seen the aecidia, as strong proof of a con-
nection between different forms. In fact the imstances where the aecidia themselves have
been produced by cultures of teleutospore forms are very few in number. But even if we
admit that the spermogonia following the sowing of G'. fuscum belonged to R. penicillata,
what are we to say of those which followed the sowing of G. macropus and G’. bisepta-
tum? It is absolutely impossible to consider G. biseptatum a form of G. fuscum, nor, in
my opinion, is there any reason to suppose that G. macropus is a form of that species.
Spermogonia followed sowings of G. macropus on both C. tomentosa and Amelanchier,
and accordingly they might have belonged to R. lacerata or R. aurantiaca. R. cornuta
may be excluded as belonging, according to Oersted, to G. conicwm, which is not in the
least related to G. macropus, and the distribution of #. hyalina makes it very improbable
that it is connected with the ubiquitous G. macropus. R. lacerata should be connected
with G. clavariaeforme and, as has already been remarked, Schroeter has suspected that
G. macropus may be a form of the last named species, but I have already stated my rea-
sons on structural grounds for not considering them two forms of the same species, and I
do not think that that belief should be altered in consequence of the results of my cultures.
There remains then f. aurantiaca which might possibly be connected with G. macropus.
The case of G. biseptatum is still more desperate. It certainly cannot be connected
with R. penicillata, or R. lacerata, and if we assume it probable or even possible that
there is a connection between G. macropus and R. aurantiaca, there is only left R. cor-
nuta to be matched with G. biseptatum, and this would imply that G. conicum and
G. biseptatum were forms of the same species, which I presume that few botanists are
willing to admit, for excellent anatomical reasons.
The reader has probably in the last few pages been surfeited with if’s and or’s, and a
choice of rather bewildering alternatives. There is only one more point to be suggested
in this connection. That is, that the appearance of the spermogonia after sowing the
OF THE UNITED STATES. 37
sporidia of the three Gymnosporangia in question, was in consequence of the presence
beforehand, in the leaves, of the mycelium of some Roestelia which was made to develop
by the moist condition in which it was placed. I am strongly inclined to favor this view,
because in many cases I have from the beginning had my suspicions that the leaves of
Crataegus tomentosa used might contain the mycelium of a Roestelia.
R. lacerata is so common in the region about Boston at just about the date of the
maturity of the Gymnosporangia that it has been with great difficulty, at times, that I
have procured leaves of C. tomentosa which appeared even to the naked eye to be free
from the fungus. In some cases pots of the young Crataegus used as control plants,
showed a growth of spermogonia without any sowing at all, and it was necessary to
reject from the cultures all the pots in consequence of the suspicion which was attached
to them. In one case, furthermore, spermogonia appeared on a leaf on the fourth day
after sowing, a suspiciously early date, unless one supposes that the mycelium was already
in the leaf at the time of sowing. Again, why was it that, with abundance of fresh spor-
idia of all our common species, in only one instance did spermogonia develop on any
other leaves than those of C. tomentosa? The same pains were taken in sowing, the same
care was exercised during the continuance of the cultures, yet in spite of that, sperm-
ogonia were only produced, one case excepted, on C. tomentosa, the very plant of all used
whose leaves were in some cases doubtful, and produced, too, by three different Gymno-
spordngia, none of which is the species supposed by Oersted to be connected with
R. lacerata, our common Roestelia on Crataegus. There is only one thing, viz.: the com-
parative frequency with which the spermogonia followed sowings of G. globosum, that
prevents my expressing a strong belief that the results of my cultures indicate that the
Roesteliae in question were originally in the leaves used, and did not follow as secondary
stages of the Gymnosporangia experimented upon. It must be admitted that the accuracy
of Oersted’s views with regard to the development of the three Danish species is not so
generally acknowledged at the present day as it was a few years ago, and the note of
Reess on R&R. penicillata, and Rathay’s recent observations, show that even if Oersted isin
general correct in supposing that the Roesteliae are genetically connected with the Gym-
nosporangia, he has certainly failed to show the connection in the case of given species.
Much may be said on both sides of the question of the relations between the so-called
aecidial and final forms, but in this paper I have only considered the two comparatively
small genera Roestelia and Gymnosporangium. Much more work remains to be done in
this country. In the first place, more extended and accurate knowledge of the distribu-
tion of our species is to be desired, and many more cultures must be made.
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4 ar "S:. PACKARD, Jr., MD.
BOSTON:
PUBLISHED BY THE SOCIETY.
Tue Anatomy, HistoLogy anp EmpBryoLocy or Limutus PoLypHemus.
By A. S. Pacxarp, Jr., M.D.
SINCE the publication of my first paper on the development of the horse-shoe or
king crab (Limulus polyphemus), in the Memoirs of this Society,’ I have, as opportunity
allowed, made additional observations on the development of the larva, and also
on the histology of the different organs, and especially the brain. In making the
microscopic sections of the embryos and for a series of sections of a brain, the
latter of which were unstained, I am indebted to Professor T. D. Biscoe. For mounting
some of these sections for study, I am indebted to Dr. C. B. Johnson of Providence, R. L,
who also kindly cut, stained, and mounted preparations of the digestive canal. Within
the past year I again returned to a study of the brain, using the methods of staining
employed by German observers, Dietl and Krieger, also by Mr. E. T. Newton. The
sections of the brain were cut and stained, as also those of the eyes, parts of the
stomach and rectum, kidneys and liver, ete., by Mr. Norman N. Mason, of Providence,
R. L, who kindly devoted a great deal of time to the work. To his unusual skill and
delicacy of manipulation, I am indebted for a large number of préparations much better
than I could have made myself, and which have been of most essential aid in preparing
this paper; so that portions of the histological part of this paper, especially that
on the structure of the eyes, are really joint productions with Mr. Mason, as we together
examined the preparations.
Position oF LimuLus AMONG ARTHROPODA.
The researches of M. Alphonse Milne-Edwards on the anatomy of Limulus, proved
that this animal, so far from being a genuine normal crustacean, is either the type
of a group equal to all the other Crustacea, namely a sub-class of Branchiata; or, as
several authors contend, should be regarded as the representative of a distinct class of
Arthropoda.
Before arguing what we now believe to be the true position of Limulus and
the allied fossil forms, including the Trilobites, let us take a review of the different
opinions of the leading zoologists who have done special work on the animal. The
titles of their work will be found in the bibliographical list at the end of this paper.
1 Memoirs Bost. Soc. Nat. Hist., 11, 155-202.
4 A. §. PACKARD, JR., ON THE ANATOMY
Straus-Diirckheim was the first author to remove the genus Limulus from the
Crustacea, and to regard it as the type of a distinct order of Arachnida, which he called
Gnathopodes. In his memoir, published in 1829, according to Van der Hoeven’s statement,
Straus characterized the Arachnida by the disposition of the feet arranged in a circle
around an interior cartilaginous sternum, and by the absence of antennae. Van der
Hoeven, in 1838, remarks that the branchiae are the principal characters of Crustacea,
as insisted upon by Latreille and Milne-Edwards, who placed Limulus in this class ;
therefore Limulus should belong with these animals, and he shows that there are other
characters which separate Limulus from the Arachnida, and which ally them with
the Crustacea. These are the compound eyes, the position of the stomach in the
front of the cephalothorax, “while it is contained in the abdomen of Arachnida.’ He
then says: “But whether we place the Limuli among the Crustacea, or with the
Arachnida, they should always form a distinct order for themselves alone, which, in
the actual state of our knowledge, is far from all the other orders of these two classes.”
Afterwards, in 1846, in his Handbook of Zoology, and again in the second, English
edition of 1856, he placed the Poecilopoda as the first order of Crustacea, referring,
however, to their resemblance to Arachnida.
In 1871, Dr. A. Dohrn, in his Untersuchungen iiber den Bau und Entwicklung der
Arthropoden, concluded that Limulus, Eurypterida and Trilobita should be united un-
der a common name, Gigantostraka, as originally proposed by Haeckel, in his Mor-
phologie, for the Eurypterida alone; and that they should be placed near the Crus-
tacea.
Most if not all the other leading zoologists, while recognizing the aberrant characters
of the Limuli, have left them among the Crustacea, though in 1834 H. Milne-Edwards
established a subclass (Xiphosura) for the group; this group being equivalent to
any one of several other subclasses of Crustacea which he enumerates. For the views we
held previous to the publication of H. Milne-Edwards’ memoir, we would refer the
reader to our Memoir on the development of Limulus, published in March, 1872.
In October, 1871, the following views of M. Edouard Van Beneden! were published :
“Tétude du développement embryonnaire de ces animaux et de leurs caractéres
anatomiques m’a conduit aux conclusions suivantes que je puis formuler dés 4 présent :
I. Les Limules ne sont pas des Crustacés; ils n’ont rien de commun avec les
Phyllopodes, et leur développement embryonnaire présente les plus grandes analogies
avec celui des Scorpions et des autres Arachnides, dont on ne peut les séparer. Dans
le cours de leur développement embryonnaire, on ne distingue aucune des phases
caractéristiques du développement des Crustacés, et il ne peut étre question de distinguer
dans le cours de ce développement embryonnaire, ni phase nauplienne, ni phase
cyclopéenne.
II. L’analogie entre les Limules et les Trilobites, et laffinité qui relie entre eux
ces deux groupes, ne peut é6tre un instant douteuse pour celui qui a étudié le
développement embryonnaire de ces animaux. Les lois de développement sont les
mémes chez les Trilobites et les Xiphosures, et lanalogie entre les jeunes Trilobites et
1 Journal de Zoologie. Par Paul Gervais. Tom. I, p. 42, 1872. Paris.
AND EMBRYOLOGY OF LIMULUS. 5
les jeunes Limules est d’autant plus grande, qu’on les considére 4 une époque moins
avancée de leur développement. A l’examen de jeunes Limules, MM. Packard et
Woodward ont été frappés de ces analogies.
III. Les Trilobites, aussi bien que les Euryptérides que les Poecilopodes, doivent
étre séparés de la classe des Crustacés et former avec les Scorpionides et les autres
Arachnides un rameau & part, dont lorigine est encore 4 déterminer.”’
In November, 1872, A. Milne-Edwards, in his beautiful memoir on the anatomy of
Limulus, claimed that the central nervous system resembled that of Arachnida, and was
surrounded by arterial coats, and that the brain supplied no limbs with nerves. His con-
clusions are stated in the following extracts: “ L’aprés les faits que je viens de passer en
revue, on voit que le systéme nerveux de la Limule différe beaucoup de celui de tout autre
animal articulé, et resemble moins a celui des Arachnides qu’a celui des Crustacés.
Chez les premiers, les ganglions cephalothoraciques sont tellement serrés entre eux
que le pertuis ménagé au milieu du collier cesophagien, pour le passage du tube
alimentaire est d’une petitesse extréme, et qu’en arriére de cette masse médullaire,
les deux moitiés de la chaine nerveuse sont réunies entre elles dans toute leur longeur,
au lieu d’étre attachées lune a lautre par des commissures ganglionnaires seulement.
Chez les Crustacés, on rencontre souvent une disposition analogue 4 celle des Limules.
Mais la coalescence des ganglions cérébroides et des ganglions postbuccaux n'est
jamais portée aussi loin, et c’est en général entre ces deux systémes des centres nerveux
que les connectifs sont le plus allongés. Chez les Limules, au contraire, ces connectifs
sont remarquablement courts, tandis que ceux situés a la partie antérieure de la
région abdominale sont fort longs. Il est aussi & noter que le systeme ganglionnaire
viscéral, dont M. Blanchard a tiré des caractéres anatomiques pour la distinction des
Insectes, comparés aux Myriopodes et aux Arachnides, présente chez les Limules
une disposition qui n’a encore été obsérvé nulle part ailleurs. Ces particularités
anatomiques viennent done & lappui de l’opinion que j’ai déja émise, relativement
a la nécessité de séparer ces animaux des autres Articulés, et d’en former une classe
particuliére, sous le nom de Merostomata, classe trés-voisine, d’ailleurs, des Arachnides.”
He then states, in considering the external anatomy, that it is not only by their internal
organization that the Limuli differ from the Crustacea and approach the Arachnides,
without, however, being confounded with them ; for there are also in the general conform-
ation of the Merostomata and the Scorpions, resemblances which seem to indicate in all
these Entomozoa a community of primordial type.
The external characters which separate the Limuli from all other articulated animals
are the absence of any preoral appendages, Milne-Edwards having shown that the
nerves to the first pair of feet do not arise, as Van der Hoeven and Owen claim, from the
brain, but from the oesophageal collar. To use Edwards’ own words: “J’eu conclus que,
chez les Limules, il y a absence compléte d’appendices frontaux, et ce caractére les
distingue des Arachnides aussi bien que de tous les autres animaux articulés de la période
actuelle.”
Finally, he remarks that if the Limuli are not Crustacea, neither are they Arachnida.
“They are distinguished, the latter not only by their mode of respiration, but by the
existence of compound eyes, the absence of frontal appendages, the continuous
6 A. 8S. PACKARD, JR... ON THE ANATOMY
prolongation of the ventral appendages on the adjacent part of the abdomen, and by
several other organic characters. They are distinguished from all other articulated
animals by the disposition of their circulatory system, and consequently, in spite of
the small number of species of this group, the zoologist should consider them as
constituting a particular class intermediate between the Crustacea and Arachnida. He
claims with Mr. H. Woodward, that the fossil Pterygoti and Eurypteri should be united
with the Limuli, under the name of Merostomata. Milne-Edwards then adds that “the
Merostomata were contemporaries of the Trilobites, and there seems to be between
these two groups, not only very strong resemblances, but intermediate forms which establish
the passage from one to the other. Some authors: have thought it useful to unite them
under a common name. This seems to me at least too premature, because we know
nothing of significance on the subject of the appendicular system of Trilobites, and we
cannot pronounce legitimately on this question ; but it should be taken into consideration,
that it seems very probable that the Trilobites differ from the Crustacea properly so-called,
as we have seen the Merostomata differ from them, and that they should likewise
constitute a particular class in the great natural division of Entomozoa.”
In November, 1873,) in the light of A. Milne-Edwards’ researches, I stated that “I
should no longer feel warranted in associating Limulus and the Merostomata generally
with the Branchiopoda, but regard them as perhaps forming with the Trilobites a distinct
sub-class of Crustacea. In a second notice in the same Journal for December, 1879, I
proposed the name Palaeocarida, for the sub-class; these comprising the Merostomata and
Trilobites. We also proposed the term Neocarida for the remaining sub-class of normal
Crustacea.
In 1874 Gegenbaur, in his Grundriss der Vergl. Anatomie, divides the living Branchiata
as opposed to the Arthropoda Tracheata, in two divisions: I. Crustacea, II. Poecilopoda.?
As regards the relations of the Merostomata to the Arachnida let us examine them and
inquire whether they are not rather those of analogy, than of affinity. It is not neces-
sary, in view of what has been published, for us to restate the essential anatomical charac-
teristics of Limulus. The relations of the viscera to the body wall, and of the appen-
dages may be seen by our figures in Plates I and I.
The resemblances to the Arachnida in general, and the scorpion in particular, have been
supposed to consist (1) in the want of antennae, and (2) the form of the central nervous
system, as well as (3) the mode of development, while (4) the branchiae of Limulus
have been homologized with the pulmonary sacs of spiders.
It should be borne in mind, however, that the Arachnida are a sub-class of Tracheata,
with no antennae to be sure, but with two pairs of post-oral appendages, the mandibles
and maxillae, which are constructed on the hexapodous type, and are also built upon the
same plan of structure as the mouth-appendages of Myriopoda; so close indeed are the
homologies between the Hexapoda, or insects proper, and the Arachnida and Myriopoda,
1 Farther observations on the embryolory of Limulus, Palaeocarida, and regard Gegenbaur’s Crustacea as equiv-
with notes on its aflinitiess Amer. Naturalist, Novem- alent to my Neocarida; this would express my views as to
ber, 1873. the relations of the two sub-classes. This makes the terms
2 If we substitute for the term Poecilopoda, which applies Crustacea and Branchiata synonyms trom my point of
only to the sub-order of which Limulus is the type, the term view.
AND EMYRYOLOGY OF LIMULUS. 7
all breathing by tracheae, excepting the few species which have no breathing organs at all,
that it seems most advisable to retain them as sub-divisions or sub-classes of the class of
insects or Tracheata.
There is little in common between the mouth-parts of Limulus and those of the Arach-
nida, either in their form or grouping; moreover, the mouth-parts of Limulus are not
differentiated from the other cephalothoracic appendages. The six pairs are alike;
morphologically true gnathopods; and in the embryo arise simultaneously ; in the Arach-
nida, the two pairs of mouth-parts are, in adult life, quite different from the eight legs,
and are soon differentiated in early embryonic life. Limulus resembles the Arachnida
in the want of antennae, but so important are the differences in the mouth-organs and legs,
that it seems a violation of the principles of classification to associate together the two
types within the limits of the same class.
The second Arachidan feature claimed by authors to exist in Limulus is the alleged
similiarity in the form of the nervous system to that of the Arachnida, especially the
scorpions and spiders. The oesophageal collar of the horse-shoe crab has been homolo-
gized with the thoracic ganglionic mass of Arachnida, and the brain of Limulus has been
likened to that of the spiders and of the scorpions.
The brain of Arachnida has heretofore been supposed to be a single pair of ganglia, and
to send nerves not only to the simple eyes, but also to the first pair of mouth appendages.
If this view is correct, as all who have studied the adult Arachnids agree, then the brain of
Limulus is not homologous with the arachnid brain (supra-oesophageal ganglion), as it sup-
plies only the eyes, sending no nerves to the anterior gnathopods. As will be seen farther
on (Plate 4, fig. 7 gn), the first pair of gnathopods is supplied in the larva directly from
an independent pair of ganglia. Very recently, however, Mr. Balfour! has proved that
the so-called supra-oesophageal ganglion or brain of the spider is formed of two pairs of
ganglia which at first are quite distinct, as shown by his section of the embryo spider.
Mr. Balfour concludes that “the evidence which I have got that the cheliceres are true
postoral appendages, supplied in the embryo from a distinct postoral ganglion, confirms the
conclusions of most previous investigators, and shows that these appendages are equiv-
alent to the mandibles, or possibly the first pair of maxillae of other Tracheata.”
In either case then, whether the brain of Arachnida is a single pair of ganglia, sup-
plying the cheliceres (or mandibles), as well as the ocelli or two pairs of consolidated
ganglia, the brain of these Arthropods can scarcely be homologous with the brain of
Limulus.
Moreover, the position of the brain in relation to the thoracic ganglionic mass of Arach-
nida is quite different from that of Limulus; in the former animals, judging from Blanch-
ard’s beautiful and accurate plates, and our own examination of the brain of the scorpion,
it is invariably situated in a plane parallel to and much above the thoracic mass, and
separated by long slender commissures; while the brain of Limulus is situated on the
same plane as the oesophageal collar, in fact, closing up the front of what would otherwise
be an open ring or collar.
1 Notes on the development of the Araneina. By F.M_ April, 1880, pp. 176, 185, 189, Pl. xxi., fig. 21.
Balfour. Quarterly Journal of Microscopical Science,
8 A. 8. PACKARD, JR. ON THE ANATOMY
The thoracic ganglionic mass of the Arachnida is likewise not homologous with the
central cephalothoracic nervous system of Limulus. The thoracic mass in the former
type sends off nerves to the maxillae, or second pair of mouth-appendages, and also to
the four pair of limbs, and from this mass the abdomen, including the spinnerets (in our
view morphologically limbs), is supplied with nerves; there being no ganglia in the
abdomen of any spiders (Araneina) as yet known. On the contrary, the oesophageal
collar of Limulus supplies the nerves for the six cephalothoraic appendages alone (and
this seems strong proof that these gnathopods should be regarded as either mouth-parts
alone, or partly mouth appendages, and partly thoracic appendages), while there is a
chain of six ganglia in the abdomen. Here, however, it should be borne in mind that in
the scorpions there is a chain of abdominal ganglia, so that in this respect there is an
interesting analogy between Limulus and the Pedipalpi. So far, however, as concerns
the brain and thoracic mass, there seems to be a lack of homology in the two types of
nervous system of Limulus and Scorpio.
In the mode of early development, Limulus resembles the Arachnida, but also in the
embryonal membranes the insects, while it also recalls the development of certain Crus-
tacea, notably Apus, as we attempted to show in our first memoir.
The fourth point of comparison, ¢.e., between the gills of Limulus and the pulmonary
branchiae of spiders seems far-fetched. The gills and mode of respiration of Limulus are
thoroughly crustacean, the gills being certainly not homologues of the “lungs” of the
air-breathing spiders, which are tracheal sacs, formed by modified tracheae, and opening
externally by stigmata.
From any point of view, developmental, anatomical or physiological, the relations
of Limulus and its fossil allies to the Arachnida seem purely those of analogy, the fund-
amental differences being such as characterize and separate the Tracheate from the Bran-
chiate Arthropods; the differences are so fundamental as to suggest the idea that the two
types probably had a different origin, 7. e. from some vermian ancestors.
In order to epitomize the differences and resemblances between the Merostomata and
Arachnida, we have prepared the following tabular view:
CoMPARISON OF THE MEROSTOMATA WITH THE ARACHNIDA.
Arachnida.
Head in adult soldered to thorax.
No compound eyes.
No antennae or morphological equivalents.
Mandibles on hexapodous type.
Maxillae with a palpus, on hexapodous type.
Four pairs of thoracie legs on hexapodous type.
No functional abdominal legs, the spinnerets being, how-
ever, modified legs.
Digestive canal on hexapodous type with a voluminous
liver, and urinary tubes.
Brain formed of two pairs of ganglia supplying eyes and
mandibles.
Maxillae and thoracic legs supplied from a concentrated
postoesophageal ganglionic mass.
No abdominal ganglia in spiders, but present in scorpions.
Merostomata (Limulus).
Head separate from hind body.
Compound eyes.
No antennae or morphological equivalents.
Only their morphological equivalents (gnathopods).
“ “ee “
No true thoracic legs; the gnathopods representing the
mouth-parts and possibly the thoracic legs.
Six pairs of swimming respiratory legs, on the Crustacean
type.
Digestive canal on Crustacean type, with a voluminous
liver, but no urinary tubes.
Brain formed of a single pair of ganglia, supplying eyes
alone, and free from the suboesophageal ganglion in embryo
and adult.
Gnathopods supplied from a concentrated ganglionic oeso-
phageal ring.
Six abdominal ganglia, much as in Crustacea.
AND EMBRYOLOGY OF LIMULUS. 9
Turning now to the relations of the Merostomata to the normal Crustacea, we may
inquire whether the former belong to the class of Crustacea, or should form the type
of a distinct class. The latter view is that proposed by A. Milne-Edwards, and a number
of zoologists have adopted this view.
The facts that seem to us to poimt to the crustacean nature of Limulus and
its allies are: (1) the nature of the branchiae, those of Limulus being developed in
numerous plates overlapping each other on the second abdominal limbs; those of
the Eurypterida being, accordmg to H. Woodward, attached side by side, like the
teeth of a rake; while the mode of respiration, as seen on plate 1, is truly
crustacean; (2) the resemblance of the cephalothorax of Limulus to that of Apus;
(3) the general resemblance of the gnathopods to the feet of the Nauplius
or larva of the Cirripedia and Copepoda; (4) the digestive tract is homologous
throughout with that of Crustacea, particularly the Decapoda, there being no urinary
tubes as in Tracheata; (5) the heart is on the crustacean type as much as on the tracheate
type, and the internal reproductive organs (ovaries and testes) open externally, at the base
of and in the limbs, much as in Crustacea.
The resemblances and differences between the normal Crustacea (Neocarida) and the
Palaeocarida (Merostomata and Trilobita) are shown in the following tabular view : —
CompPARIsON OF NormMAL Crustacea (NEOCARIDA) WITH LIMULUS AND OTHER PALAEOCARIDA.
Neocarida. Palaeocarida.
Integument solid and calcareous, or thin and chitinous.
Usually in higher forms a cephalothorax, but in Phyllo-
pods no genuine cephalothorax distinct from the abdomen.
Eyes of normal form, rods and cones present, but no cor-
neal lenses.
Two pairs of antennae.
Mandibles normal.
Maxillae normal.
Maxillipeds normal.
Gills on thoracic feet, or thoracic or abdominal feet them-
selves broad and thin, and serving as gills.
Abdominal feet biramous.
Heart polygonal or tubular.
Digestive canal with its three subdivisions of fore-, mid-
and hind-gut.
Nervous system with a brain sending nerves to the anten-
Integument usually chitinous.
Head and abdomen alone; no thorax except in trilobites.
Eyes with no rods and cones, but corneal lenses.
No antennae, either functional or morphological.
No functional mandibles = gnathopods.
No functional maxillae = enathopods.
No functional maxillipeds = gnathopods.
Gills on the abdominal feet.
Abdominal feet biramous.
Heart tubular, as in many Neocarida except Decapoda.
Digestive canal homologous with that of most higher
Crustacea.
Nervous system with brain supplying eyes alone—first pair
nae and eyes.
Oviduct opening at base of middle thoracic feet ; male out-
let at base of 5th thoracic feet.
Metamorphosis often complete.
Nauplius in some forms.
Zoea in Decapods.
of gnathopods supplied from oesophageal collar, in larva
from suboesophageal ganglion.
Oviduct and male outlet situated at base of first abdominal
feet.
Metamorphosis absent, or partial.
No Nauplius.
No Zoea.
The difficulties which stand in the way of associating the Merostomata (throwing
out the Trilobites for the sake of clearness of statement) with the Crustacea, are: (1)
the nature of the limbs, and the absence of the pairs of antennae ; but it may be observed
that in the undifferentiated gnathopods of Limulus we have a parallel in the larval
10 A, 8. PACKARD, JR, ON THE ANATOMY
Cirripedia and Copepoda, where what ultimately become antennae and mandibles are
swimming feet; and in the zoea of Decapods, in which two pairs of antennae exist, and
the temporary swimming feet ultimately become maxillae and maxillipedes; (2) the
unique relations of the inferior blood system to the central nervous system (the brain
and certain nerves alone excepted); and (3) the peculiar nature of the eyes of the Meros-
tomata and Trilobites, which are constituted on a type peculiar to themselves.
Under all these circumstances, it may be claimed, as has been done by A. Milne-
Edwards, that the Merostomata should form a distinct class of Arthropoda. It should
be borne in mind, however, that M. A. Milne-Edwards believes that a second class
of Arthropods should be formed to receive the Trilobites. Taking all the facts into
consideration, we should propose that the Merostomata and Trilobites should together
form a subclass of Crustacea (i. e., Branchiate Arthropods) standing parallel to, and
as the equivalents of, all the other Crustacea, the two groups being parallel and
equally important branches of the same genealogical tree.
It should be borne in mind that the Palaeocarida are a generalized or synthetic type;
Limulus is, so to speak, a subzoea, the cephalothorax having been differentiated from the
abdomen and prematurely developed, with the gills of a normal crustacean; having the
primitive appendages of a nauplius, and the compound eyes superficially like those of
a zoea, but on an elementary, prematurely developed type; while the circulatory system
is of a high order, and the nervous system well developed, though the brain is constituted
on a simple plan, quite unlike that of the higher Crustacea, and probably the Crustacea
in general. The subclass of Palaeocarida apparently bears very much the same relation
to the subclass Neocarida, as the subclass Elasmobranchii or Ganoidea do to the
Teleostean fishes; as in these early synthetic forms certain organs are prematurely
developed, while the skeleton and other parts are in a more or less embryonic or larval
condition. They abounded most in the Palaeozoic ages, dying out in part, with
but a few survivors; such was the case with the Palaeocarida. Under these circumstances
we see no more reason for removing the Merostomata and Trilobita from the class
of Crustacea, than to consider the Elasmobranchii or Ganoids as independent classes
of Vertebrates. or the Arachnids or Myriopoda, as independent classes of Arthopoda.
Regarding, then, the Palaeocarida as an early offshoot of the Crustacean or Branchiate
eaioned tree or stem, we would venture to present the classification on the followmg
page, as proposed in 1879, in our little school book, “ Zoology
The Neocarida may be characterized briefly as genuine Grenass with two pairs of
antennae, biting mouth-parts and ambulatory or swimming thoracic feet ; mostly modern
types. The Palaeocarida, on the other hand, have the cephalothoracic appendages in
the form of foot-jaws, rather than true jaws; no antennae, the brain supplymg the
compound eyes and ocelli alone; the nerves to the cephalothoracic appendages sent off
from an oesophageal ring or collar; and the nervous system, with the exception of the
brain, ensheathed in a ventral system of arteries; they are mostly palaeozoic types.
The close homologies between the Merostomata and Trilobita were discussed in our
first memoir. At that time (p. 184), we advocated the view that the cephalothoracic
limbs of the Trilobites must have been jointed, rounded rather than foliaceous, and ambu-
latory in function, and inclined to the views of Mr. Billings as to the nature of what he
”
AND EMBRYOLOGY OF LIMULUS. 1
regarded the appendages of the Asaphus described by him in 1864. Since then the
researches of Mr. C. D. Walcott’ on sections of Trilobites seems to have satisfactorily
proved that Trilobites have rounded, jointed ambulatory appendages developed from the
head and possibly from the thorax. His observations, though from the nature of the case
in some respects imperfect, have set at rest the question as to whether these extinct
Palaeocarida had rounded, jomted limbs, though much yet remains unproved as to the
homologies of these limbs with those of the Merostomata. It also appears that the
hard parts of the eyes of Trilobites are directly homologous with those of Limulus,
as we attempt to show hereafter in this paper.
: 8
is}
S s iS
Q S = 8
NK 3 S
S SS) S
Ny S Sy <
> = 5
~ S 3
Ry S ES
= 3
§ S 3 s
3 s 3
Sj 2 S =
a] s= Ss)
S S Ss
:s < S
ie) & S
|
SS SS
NEOCARIDA, |
PaLocaRiDA.
oS EE Se ere eee coer
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CRUSTACEA.
As to the general homologies of the body of Limulus, it seems to us that the
facts presented further on confirm the position we have always taken, i. ¢., that there
are no true antennae in Limulus; that the gnathopods are mostly modified mouth-
parts, the last pair possibly representing a pair of thoracic feet; that the fore
region of the body corresponds to the cephalothorax of the Decapoda or of a
Preliminary notice of the Discovery of Natatory and on some sections of Trilobites from the Trenton Limestone,
Branchial appendages of Trilobites, and additional evidence Sept. 20, 1877. See also Ann. Rep. N. Y. Mus. Nat. Hist.,
upon the same. Twenty-eighth Annual Report, New York March, 1879.
State Museum of Natural History, December, 1876. Notes
12 A. 8. PACKARD, JR, ON THE ANATOMY
Nebalia, and that the posterior region is truly an abdomen, the spine of Limulus
being simply the last body-segment, or ninth abdominal arthromere, as the history
of the embryonic development of this segment proves. It then follows that the
abdominal respiratory feet are, for example, homologues of the broad respiratory
abdominal appendages of Isopoda. The view of Mr. Woodward, that what we regard
as abdomen represents in part the thorax, or the opinion of Owen and Huxley that the
spine represents the abdomen, and that what we call the abdomen is the thorax, in
part at least, is, it seems to us, not based on sound induction.
Histotocy or THE INTERNAL ORGANS oF THE ADULT LIMULUS.
Histology of the digestive system. The general form of the digestive canal is
seen in plate 3, fig. 1. The large mouth-opening is situated between the third to
fifth pairs of limbs. The oesophagus is very long, and directed very obliquely forward
and upwards from the mouth, entering the large crop or proventriculus at an angle
to the general course of the latter, which is full and large, projecting anteriorly
over the end of the oesophagus. It curves over backwards, growing smaller posteriorly,
projecting above slightly over the beginning of the stomach or mid-gut. What we call
the crop, is the “cardia” of Van der Hoeven, and the “cardiac end of the stomach”
of Owen and A. Milne-Edwards. Communication with the chyle-stomach is effected
by the large internal projection in the form of a truncated cone (plate 3, fig. 1, cone),
by which the food, when partially digested, is strained, and passes from the proventriculus
into the true stomach. The latter, externally, seems to form the beginning of the
intestine, and extends from the base of the proventricular projection backwards as
far as the first pair of biliary ducts; its histology is quite different from that of the
proventriculus and its posterior conical process.
The beginning of the intestine is indicated externally by a slight contraction just
before the origin of the anterior of the two pairs of biliary ducts. These are placed
far apart by a distance nearly equal to twice the thickness of the intestine. The
hind gut is divided into the intestine and rectum. The intestine is straight, and
of uniform thickness as far as the beginning of the rectum, which is swollen, owing to the
large rectal folds within,
On laying open the digestive canal of specimens collected in the winter, it is found
to be filled with a jelly-like substance, which on examination proves to be the lining
of the canal, which has been molted, and has undergone partial digestion.
Examining the inner walls of the digestive canal, and studying its histology, we
find that there are three fundamental layers composing the canal, extending from the
mouth to, the vent. There are, beginning on the outside, (1) the muscular layer,
(2) the mucous or epithelial layer, and (3) the chitinous layer. The muscular
layer is made up of longitudinal muscles, the fibres striated, with scattered small bundles
of transverse striated fibres, some of these isolated from the outer layer of longitudinal
muscles and passing through the epithelial tissue.
The second or epithelial layer is thick, composed of pavement epithelium, arranged in
fibrous masses or bundles, somewhat like muscular tissue.” The nuclei are large and
AND EMBRYOLOGY OF LIMULUS. 13
conspicuous where the preparations have been stained with haematoxylin ;! the cell
walls are difficult to distinguish with a one-fifth objective. The pavement epithelium fills
the spaces between the folds of the oesophagus and crop (or fore gut), and is succeeded
by a single layer of columnar epithelium, which looks like a delicate ruffle, edging
the folds, and lying between the pavement epithelium and the chitinous lining of
the canal. The chitinous layer is very finely laminated, the laminae being parallel
for the most part to the indentations and projections of the folds and the teeth of
the fore-gut, showing plainly that it is secreted by the layer of columnar epithelium.
Cross sections of the larva, after hatching, through the fore-, mid-, and hind-eut, when
the appendages and internal organs have assumed their definite shape, show that
the intestine then consists of only two layers, the muscular, which is comparatively
thin, and the layer of columnar epithelium (plate 5, figs. 7, 7a), which rests directly
upon the muscular layer, and consists of long cells projecting irregularly into the
cavity of the canal. It would thus appear that the thick layer of pavement epithelium
and of chitine is not developed throughout the intestine, until some time after hatching.
Indeed, it is known that the larva lives for a long time, even months, after hatching,
before it takes much, if any, food.
Returning to the oesophagus; it is seen to be lined with a pale yellowish chitinous
layer gathered into about eight large deep folds. Plate 5, fig. 5, illustrates the structure
of two of these folds and part of the adjoining ones. The muscular fibres are not
represented. The cells 4, 4a, of the pavement epithelium (pe) are round or oval, with a
large, distinct, dark nucleus; their walls are difficult to define. The projecting lobes con-
sist of columnar epithelium, with large nuclei, much more distinct than in the pavement
epithelium ; the basal half of the cells are dark, being filled compactly with granular mat-
ter enclosing the nuclei, while on the outer half the cells are transparent; plate 5, fig. 3,
3a, represents these cells enlarged. The lobes are hollow, leaving a clear space, as
shown in figure 5; the lobes are unequal in form and size, those figured being situated
near the posterior end of the oesophagus. The columnar epithelium is succeeded by the
chitinous layer (ch), which is finely laminated, the lamimae corresponding to the direction
of the lobes. :
The crop or proventriculus consists of three parts; in the most anterior division the
chitinous folds, continuous with those of the oesophagus, are large and irregular and extend
vertically upwards, until they bend backwards suddenly at right angles to form the rows
of thick, solid teeth lining the second or middle and larger part of the crop. These teeth
are arranged in five sets of rows, each set or series consisting of three rows, and two series
of two rows, the two latter sets situated on the under or ventral side of the stomach, and
arranged on each side of the three-rowed series. The teeth in each row are nearly uniform
in size, are transverse, being flattened antero-posteriorly. In the three-rowed series,
especially on the ventral side, the teeth of the middle of the three rows are larger than
those of the row on each side. There are about 225 well marked teeth in this division
of the crop, those at either end of the rows being small and sometimes double.
1T am much indebted to Dr. C. B. Johnson, of Providence, preparations of the oesophagus, crop, and intestines, stained
for kindly cutting, staining, and mounting some excellent both with haematoxylin and carmine.
14 A. S. PACKARD, JR., ON THE ANATOMY
The minute structure of the vertical folds of the first or anterior division of the crop
may be seen at plate 5, figs. 1, 2, where the relations between the muscular, epithelial
and chitinous layers are shown. The limits between the longitudinal striated muscular
layer (m) and the epithelial layer are clear and well marked, the bundles of pavement
epithelium (pe) running at right angles to and abutting directly on the muscular layer.
The pavement epithelium is also, in slices stained with haematoxylin, clearly demarked
from the columnar epithelium (ce) by its pale lilac tint, the latter staming brownish and
contrasting well with the purple-stained chitine, which is finely laminated, the lines of
deposition being waved, the points of the waves under a low power appearing like fine
lines passing inward near but not quite to the free edge of the tooth, the margin of the
chitinous layer remaining unstained and pale yellowish. Fig. 2 represents the small
central tooth la, still more enlarged, showing the lines of growth of the chitin, and the
ruffle of columnar epithelium, indicated by the row of large nuclei bordering the margin
of the lobes of the columnar epithelium layer.
In the teeth of the middle region, which as we said, number some 225, the columnar
epithelium is wanting, though the corresponding tract is yet stained pale brown by haema-
toxylin or deep crimson by carmine, but the cells are of the same nature as in the adjoin-
ing pavement epithelium; it is also not scalloped, but the layer of chitine is much thicker
than elsewhere in the digestive canal.
The proventricular cone or tube has internally about thirteen unequal chitinous folds,
continuous with and like those of the oesophagus, five large folds alternating with eight
smaller ones. The folds are yellowish, and project ruffle-like at the end, contrasting in
structure and color with the whitish exterior of the cone or strainer. An examination of
the cellular structure of the interior lining of this tube, shows that it has a chitinous
lining continuous with that of the crop, and which stops at the ruffle-like extremity of
the tube; this chitinous layer is succeeded within by a ruffle-like layer of columnar
epithelium, like that in the fore part of the crop. The chitin is entirely wanting in the
papillose exterior of the tube, while the layer of columnar epithelium is deep, the cells
being very long and slender. The structure, then, of this tube is externally like that of
the stomach walls as described below, while internally it is histologically an extension of
the structure of the oesophagus and proventriculus.
The beginning of the mid-gut or true stomach, as we regard it, is lined internally with
a layer of large, long, erect papillae which extends nearly as far as opposite the end of
the strainer, and is also extended along the outside of this organ. Just before a point
opposite the end of the strainer, this layer of dense close-set papillae suddenly stops, and
is succeeded by a division of the digestive canal lying between the point opposite the end
of the proventricular strainer, and a point situated a little before the opening of the
first pair of biliary ducts. This region, which we regard as the true stomach, has the
inner surface raised into about twelve transverse or circular folds. Just where this region
of the digestive canal ends, it contracts, and this is judged to be the line of demarcation
between the mid-gut and hind-gut, 7. e., the true stomach and the intestine. It should
be observed that the chitinous folds of the oesophagus and proventricle (usually called
stomach) are continuous, alike morphologically, and stop at the posterior end of the
proventricular strainer. It is evident that the food, such as worms, at first partly torn by
AND EMBRYOLOGY OF LIMULUS. 15
the teeth at the base of the limbs, is further triturated by the numerous hard teeth of
the crop, while the more nutritious fluid portions strain through the narrow passage of
the singular hollow cone.
The inner walls of the stomach are destitute of chitin, the long, close-set, large papillae
bemg edged with a thick layer of columnar epithelium. The twelve circular folds of
pavement epithelium are also lined with a similar columnar epithelium.
The four biliary ducts open into the intestine proper, which is lined as far as the
rectal folds with an epithelial membrane, is divided by longitudinal and transverse lines
into squares forming close-set, square, flattened papillae; on the posterior half of the
intestine the longitudinal lines are more numerous than the transverse, the latter being
partially obsolete, so that the imner surface of the intestine is gathered into fine longi-
tudinal folds, the free edges of the folds being irregularly serrated.
These folds consist of pavement epithelium (or mucous membrane), the free edges of
which are of columnar epithelium, the cells being long and narrow, while the nuclei are
not so large and distinct as in the proventricle.
The intestine within suddenly contracts at the beginning of the rectum, but becomes
larger posteriorly to the vent; the interior is thrown up suddenly into ten large folds of
unequal size, which become smaller posteriorly. These rectal folds have the same
muscular and epithelial layers as in the other parts of the digestive tract, but the cells of
the pavement epithelium, instead of being uniformly round, are in places irregularly
diamond or spindle-shaped, as in plate 5, fig. 6. The columnar epithelium of the rectal
folds is lined externally (in the rectal cavity or lumen) with a lining of a clear, structure-
less, somewhat chitinous membrane which stains purple with haematoxylin. It would thus
appear that the secreting surface of the stomach-walls is, owing to these folds and
large erect papillae, very much greater than in the intestine. We have seen that the
stomach, like the intestine, lacks the chitinous lining, and this, together with the
histological identity of structure between what we regard as the stomach and the intestine,
may seem to some as opposed to the view that this region is the mid-gut, stomach or
archenteron ; but the fact that it is divided from the intestine by a slight constriction, that
it lies in front of the biliary ducts, and that the appearance and gross anatomy of the lining
is unlike that of the intestine, coupled with the perfect continuity of structure in the
oesophagus and proventricle, are to our mind sufficient arguments for the position we hold.
Moreover in the lobster the two capacious biliary ducts empty directly into the true
stomach or mid-gut, the small straight intestine beginning at some distance behind the
origin of these ducts.
Thus while the stomach and intestine of Limulus agree in the absence of the chitinous
layer, the rectum in its longitudinal folds and lining of chitine repeats in a degree the
structure of the oesophagus.
Comparing the digestive canal of Limulus with that of the lobster or Decapodous
Crustacea in general, we find that the oesophagus and so-called stomach (what we call in
this paper crop or proventriculus), are continuous parts ; that the true mid-gut or stomach
has, like the intestine, no chitinous lining, though the rectum of the lobster, as we find on
examination, has long rectal folds (besides large square raised projections), and is through-
out lined with chitine. There is thus a general correspondence or homology between the
Decapodous and Merostomatous digestive or enteric canal. Unfortunately we have been
16 A. §8. PACKARD, JR. ON THE ANATOMY
unable as yet to find any specimens of the young with the enteric canal in such an early
stage of development as to throw any light on the morphology of the stomach.?
z 8
Structure of the liver. The tubules of the liver spread everywhere through the
cephalothorax, reaching almost to the edge of the retina of the eyes, and when cut
through, show in sections, as at plate 3, figs. 9, 9a, 9b, a circular or oval layer of epithelium,
surrounding a cavity more or less irregular in size and form. ‘The cells are quite large
and filled with brownish granules, being dark at base and transparent towards the end
where they project into the cavity.
Plate 3, fig. 8, represents the end of a lobule from theliving horse-shoe crab. Com-
pared with that of the lobster (plate 3, fig. 10), they are from one half to a third smaller,
very much longer, more intestiniform, and contracted irregularly, while the pigment
granules are thicker, and the entire mass is blackish-brown. Figs. 8a, 8b, 8c, represent
the cells comprising the’ epithelium teased out and spherical in form. Fig. 8a, indicates
a cell containmg smaller nucleated cells of two kinds, the smaller clear and yellow, the
larger, darker and horn-colored; 8b, a clear, nucleated cell; 8c, represents dark, clear
amber-colored cells filled with the secretion, and with the nucleus no darker than
the rest of the cell, and very clear. For purposes of comparison we give figures
(plate 3, fig. 10) of the end of a liver-lobule of the lobster, which is pale green, with
numerous epithelial cells, a few oil globules being scattered through them. In the living
lobules of a species of Panopaeus common in Buzzard’s Bay, some of the cells are
colored yellowish-green, imparting the same color to the entire lobule; the cells in Pan-
opaeus (plate 3, fig. 8d) are clear of granules, almost as much so as the fat globules. The
lobules of the liver of this crab are larger, more conical and shorter than in the lobster.
From this it will be seen that fundamentally both the general and minute structure of
the liver of the Decapoda and Limulus is nearly identical.
The glandular bodies supposed to be renal in their nature. These glands had
remained undescribed, until in a paper read at the Philadelphia meeting of the National
Academy of Sciences, held in November, 1874,? we drew attention to their occurrence
and histological structure. Although we have nothing to add verbally to the account
then given of the gross anatomy of these glands, we would refer to the figure (plate 3,
fi. 7) illustrating the form, and the cells (plate 3, figs. 7a, 7b, 7c) composing these glands.
They do not appear to have been described by Van der Hoeven, Owen, or A. Milne-
Edwards, in their account of dissections of this animal.
These glands are quite large, and apparently of some physiological importance,
and are easily found, as they are conspicuous from their bright red color, causing
them to contrast decidedly with the dark masses of the liver, and the yellowish
ovary or greenish testes, near which they are situated. The glands are bilaterally
symmetrical, one situated on each side of the proventricle and stomach, and each is
entirely separate from its fellow. Each gland (plate 5, fig. 7) consists of a stolon-
1] have found in the crop (stomach) of a large Limulus In another, occurred an Edwardsia, still alive, and three
oie. . n . . 7 » Leap > J oypie mre >
several living spiny larvae of Homalomyia, and several dead — or four large Nereis virens.
Tollennia gemma, mixed with bits of sea weed and Zostera. 2 American Naturalist, 1x, 511. September, 1875.
AND EMBRYOLOGY OF LIMULUS. 17
like mass (a), extending along close to the great collective vein, and attached to
it by irregular bands of connective tissue, which also hold the gland in place.
From this horizontal mass, four vertical branches (b, 0) arise, and le between and
next to the partitions at the base of the legs, which divide the latero-sternal region
of the cephalothorax into compartments. The posterior of these four vertical lobes
accompanies the middle hepatic vein from its origin from the great collective vein,
and is sent off opposite the insertion of the fifth pair of feet. Halfway between the
origin of the vein and the articulation of the limb to the body, it turns at a right angle,
the ends of the two other lobes passing a little beyond it, and ends in a blind
sac, less vertical than the others, slightly ascending at the end, which lies just above
the insertion of the second pair of feet. The two middle lobes are directed to the
collective vein. Each lobe is somewhat flattened out, and lies close to the posterior
wall of the compartment in which it is situated, as if wedged in between the wall
and the muscles between it and the anterior portion of the compartment. Each
lobe also accompanies the bases of the first four tegumentary nerves.
I could not by injection of the gland discover any general opening into the coelom
or body cavity, or perceive any connection with the hepatic, or with the great collective
vein. The four lobes end in blind saes, and have no lumen or central cavity.
The lobes are irregular in form, appearing as if twisted and knotted, and with sheets
and bands of connective tissue enclosing the muscles, among which the gland lies.
Each lobe when cut-across, is oval, with a yellowish interior and a small central cavity.
The gland externally is of a bright brick-red. The mass is quite dense, though yielding,
and on this account hard to be cut with the microtome.
When examined under Hartnack’s No. 9 immersion lens and Zentmayer’s B eye-piece,
the reddish external cortical portion when teased out from the living animal, is seen to
consist of closely aggregated, irregularly rounded, nucleated cells of quite unequal size ;
and scattered about in the interstices between the cells, are dark reddish pigment masses
(plate 3, fig. 7a) which give color to the gland. They are very irregular in size and form,
and twenty hours after a portion of the living gland was submitted to microscopic examin-
ation moved to and fro. In other portions of the outer reddish part of the gland, where
the pigment masses are wanting, the mass is made up of fine granular cells, which have
no nucleus. Other cells have a large nucleus filled with granules, and containing nucleoli.
In the yellowish or medullary portion are scattered about very sparingly certain
spherical cells which probably are purely secretory (plate 5, figs. 7b, 7c). The nucleus is
very large and amber colored, with a clear nucleolus; others have no nucleolus, and the
small ones are colorless.
T am at a loss to think what these glands, with their active secreting cells filled with a
yellowish fluid, can be, unless they are renal and excretory in their nature. In general
position they coincide with that of the shell glands of the Entomostraca and Branchi-
opoda, including the Phyllopoda, especially as worked out in Leptodora, by Weismann."
But in lacking apparently an excretory duct, and in their dense parenchym, with no
lumen, as well as histologically, they seem to differ from the shell glands of the lower
1 Ueber den Bau und Lebenserscheinungen von Leptodora hyalina. Zeitschr. fur wiss. Zoologie, Bd. xxrv. p. 385, 1874.
1 A. 8. PACKARD, JR. ON THE ANATOMY
Crustacea, and the green glands of the Decapoda. It should be remembered,
nevertheless, how difficult it is to find the excretory duct of the green gland, though
its inlet is very apparent. It is probable that we have here to deal with a new form
of kidney, adding a fourth kind to the three forms of renal organs existing in the
Crustacea.!
STRUCTURE OF THE Evers or LIMULUS.
After we had made some researches on the structure of the compound eyes of Limulus,
and had ascertained that their structure is quite unlike that of other Arthropodous eyes,
having a chitinous lens and no rods and cones, we had the opportunity of examining
Grenacher’s elaborate work entitled Untersuchungen jiber das Sehorgan der Arthropoden,
insbesonderer der Spinnen, Insecten und Crustaceen?
We have little to add to Grenacher’s account of the histology of the compound eye,
and our studies confirm the accuracy of his account and the three drawings he publishes
of the structure of the retinula and the rhabdom, although we have failed to find the layer
of epithelial cells extending up between the corneal lenses and next to the pigment layer ;
these are much less regular in their arrangement than drawn by Grenacher, and seem to
be simply connective tissue cells, which are as abundant away from the lenses as next to
them. We have also not succeeded in observing that the optic nerve fibres end in the
manner indicated in his drawing. We may here say that we had examined sections of the
compound eye of Limulus, and had made out the leading points in its structure before
seeing Grenacher’s work.
The following account is based upon observations made upon sections cut for us by Mr.
Mason. They are taken in most cases from living specimens, placed in alcohol, and
hardened in gum arabic ; and either stained with picro-carmine, or else the pigment layer
dissolved wholly or in part with nitric acid in order to uncover the ends of the corneal
lenses and to show the structure of the retinula and rhabdom. The subdivisions of the
optic nerve were best showed in slices stained with picro-carmine, the nervous substance
being but partially colored and contrasting well with the highly tinged connective tissue
by which the nerves are surrounded. In order to study the eye of Limulus intelligently
Mr. Mason kindly made for us numerous exquisite sections of the eye of the lobster.®
Plate 6, fig. 1, represents an actual section of the eye, with its exterior convex surface,
its lenses, retina and nerves. The surface of the eye is convex, smooth and polished.
The integument over the eye suddenly diminishes in thickness to form the cornea ; it is
solid and chitinous as in the rest of the integument, and is composed of three layers:
the outer and thinner more solid one (1,), which is clear yellow or amber-colored ; the
middle (1,), which is duller yellow and is finely laminated and softer, being partially
1 See Eug. Wassiliew. Ueber die Nieren des Flusskrebses. the optic nerve-fibres, so that the structure of the eye could
Zoologischer Anzeiger, p. 221, 1878. readily be studied. We did not perceive that the anatomy
7Von H. Grenacher. Gottingen, 1879, 11 lith. taf. 40, of the eye of Homarus americanus differed in any important
pp- 188. respect from that of the European lobster as worked out by
® These sections made by Mr. Mason were remarkably Mr. Edwin T. Newton. Quart. Journ. of Microscopical
successful, the slices being thin enough to include a layer of Science, 1873, p. 339.
hundreds of facets and rods and cones but one deep, with
AND EMBRYOLOGY OF LIMULUS. 19
stained reddish by carmine ; and a third (1,) thicker layer, less laminated and pierced by
nutritive canals (p), filled with connective tissue and directly communicating with the
body cavity. From the cornea project obliquely inwards large, long, solid, conical
processes (cl). These are the “ corneal lenses” of Grenacher, which he regards as homolo-
gous with the corneal lenses of larval insects and of Arachnida. We see no reason to dissent
from this opinion. These corneal lenses are long, cylindrical, obtusely pointed, sometimes
quite sharp, at the end. They point inwards more or less obliquely towards the centre of
the eye. Those (as at fig. 2a) near the periphery of the eye are longer and slenderer and
more oblique than those in the centre, the latter being considerably shorter and blunter
(plate 6, fig. 2). These lenses are developed from the third, a portion of the second or
more laminated layer of the cornea filling up a conical space (fig. 2a, h,) at the base of
the cone; the lamimae composing this shallow cone within the larger cone are continuous
with the laminated layer of the cornea, and like it are stained reddish by the carmine,
while the cone itself remains unstained, of a clear amber color, and is structureless ;
sometimes one or two curved lines being seen parallel to the periphery of the end of the
cone. That the corneal lens is solid is proved not only by its appearance, as seen
in numerous sections, but by the frequent marks of the razor, and by the laminated
structure of the mner conical portion. What relation, if any, the conical part (h) has
physiologically to the corneal lens, we are not prepared to state.
The terminal half, or sometimes third, of the corneal lens is enveloped in the pigment
layer or retina, (plate 6, fig. 5, rt), which is morphologically a continuation or modification
of the dark hypodermis (hy). The layer is continuous between the ends of the solid corneal
lenses, but is produced at the ends of the latter into cones of corresponding size (rtc),
which project into the body-cavity, and are enveloped by the dense connective tissue.
As stated by Grenacher, this pigment layer is composed of modified epithelial cells, which
are very long and slender, with a minute nucleus (fig. 38, rel). It is very difficult to make
out these cells, and we should have overlooked them had not Grenacher described and
figured them; finally, however, we could trace them, in preparations treated with acid,
into the hypodermis, where the cells are also long and slender, though shorter than in the
retina. Plate 6, fig. 3, rel, represents these retinal cells, as seen at the end of an acute
corneal lens, and their relation to the rhabdom (rhab).
Besides the retina, the soft parts of the entire compound eye of Limulus consists of
a large mass of connective tissue (ct), lying under and next to the retina and finely gran-
ular, permeated by the irregular tortuous branches of the optic nerve. The cells and
granules of this specialized subocular portion of the connective tissue forming the paren-
chyma of the cephalothorax are smaller than elsewhere; they are nucleated, and the
tissue stains paler crimson by the picro-carmine, than the connective tissue beyond the
subocular area, which remains darker brown, with coarser granules. The arteries,
ovarian-tubes and liver-tubes, rarely penetrate into the subocular area; and the branches
of the optic nerve do not wander into the region beyond. Fig. 1, av, represents the cut
ends of two minute arterial branches, ov represents the cell-eggs of the end of an ovarian
tube, and / indicates the much larger sections of a liver-tube; these vessels constitute the
greater part of the soft portions of the cephalothorax, being brown or yellowish brown,
and enveloped in a dense connective tissue.
20 A. S. PACKARD, JR., ON THE ANATOMY
The subdivisions of the optic nerve can rarely be traced for a long distance contin-
uously, owing to their irregular, tortuous course. In the drawing (fig. 1), I have
delineated with the aid of the camera lucida an actual section; the clear spaces indicate
the cut portions of the nerves distributed to each corneal lens. Histologically they
present the same appearance as the nerve-fibres in the brain, those given off from the
lower ganglionic cells. Under a low power (4 inch), they appear to be structureless ;
under a } they are seen to be finely granulated. After repeated search I could find no
nuclei in these fibres; nor were there any ganglion cells to be discovered. Repeated exam-
inations of numerous sections treated in different ways, have convinced me that there
are throughout the subocular area no ganglion cells, such as are characteristic of the eyes
of spiders and myriopods ; hence, with Grenacher, we may state that a ganglion opticum
is entirely wanting in Limulus ; the irregular, tortuous subdivisions of the optic nerve are
sent directly to the corneal lenses.
Coming now to the structure of the individual eye, or facet in the compound eye, we
find that its anatomy is just as described by Grenacher, except that we have been led to
doubt the existence of the layer of triangular (in outline) cells, which he represents as
extending up between the conical corneal lenses, and it should be borne in mind that we
examined eyes taken directly from living Limuli, as well as specimens that had been
preserved in alcohol for several years. Grenacher’s researches were made on eyes pre-
served for a long time in specimens of Limuli obtained from German museums, and his
material was so poor that he did not attempt to study the simple eyes (ocelli).
The structure of the cone of pigment matter enclosing and extending beyond the
end of the conical line has been described and illustrated in a masterly manner by
Grenacher. Impinging on the end of the conical lens, and extending through the centre
of the conical mass is a twelve-radiate semi-solid body, called by Grenacher the rhabdom,
and which he apparently homologises with the rhabdom or spindle-shaped body, suceeeding
the rod of the ordinary Crustacean eye. Along a part of its length, this rhabdom
(fig. 4, rhab) is enveloped by the retinula (plate 6, fig. 4, ret). Our figures show in
sections the rhabdom, with its central axis and twelve or thirteen rays, forming a rosette
extending into the substance of the retinula. That the retinula is, as Grenacher figures,
composed of as many large cells as there are rays of the rhabdom, we have proved by
preparations treated with acid, as seen in fig. 4, a.
How the optic nerve is connected with or impinges on the rhabdom, we have been
unable to ascertain. We have only seen enough to convince us that the nerve reaches
the end of the rhabdom, but the nature of the ending is unknown to us. The nerves,
as seen in our drawing, fig. 1, sometimes appear as if they ran by the end of the retinal
cones, and extended up between the corneal lenses. On the other hand, we have seen
very plainly the mode of termination of the nerve in the ocellus. Grenacher, however,
states that “a number of the nerve-fibres are distributed to each single-eye [facet],
they diverge behind it, and I have repeatedly traced clearly the entrance of a fibre into
the axial part of a retinula cell.”
Grenacher concludes that perception in the typical Arthropod eye is performed accord-
ing to the mosaic theory of Miiller, and that this applies to the eye of Limulus, although
the eye of the latter is morphologically wholly different from the eyes of any other animal.
AND EMBRYOLOGY OF LIMULUS. Dall
a
According to Grenacher, the conical lenses are not homologues of the crystalline
lenses of other Arthropods, and the eye of Limulus cannot, he holds, be compared with the
eyes of any other Arthropoda. There can be, he claims, no genetic connection between
the eye of Limulus and those of any other Arthropods, and the two types of eye, i.e.,
those of Limulus and all other Arthropods, agree only in the fact that they are compound.
Among the Arachnida, he states, one may seek in vain for such an isolated type
of eye. He adds: * But it is not only possible but also probable, that the Poecilopoda
are related by their eyes to Myriopoda. In Cermatia, the eyes are wholly unlike those
of the spiders or insects, and they seem to have something in common with those
of Limulus.” We shall see further on, however, that the type of eye of Cermatia is not
fundamentally unlike that of Bothropolys, and other Myriopoda, as figured by Graber.
We have seen, then, that there is in the eye of Limulus an entire absence of rods and
cones, a common feature of the Arthropod eye. The corneal lens of Limulus corresponds
to the cornea or facet of each individual Arthropod eye, but there are no rods and cones, no
optic ganglion, no scattered ganglionic cells, but the end of the long, solid, conical, corneal
lens is simply enveloped by the pigment mass, and the end of the cone is succeeded by
a rhabdom, partly enveloped by the retinula, the terminus of the optic nerve
passing into the axial part of a retinula cell.
Comparison of the compound eye of Limulus with that of Trilobites. Beyond the fact
that the entire eye of certain Trilobites, and enlarged views of the outer surface of the
cornea of the eye, have been described and figured in Burmeister’s work on the organ-
ization of Trilobites and in various palaeontological treatises in Europe and North
America, especially by Barrande in his great work on Trilobites, I am not aware that
any one has given a description of the internal structure of the hard parts of the
eye of Trilobites.
The full bibliography of treatises relating to these animals in Bronn’s Die Classen
und Ordnungen des Thierreichs, carried up to 1879 by Gerstiicker, contains references
to no special paper on this subject, and the résumé by Gerstiicker of what is known of
the structure of the eye, only refers to the external anatomy of the cornea, the form
of the facets and their number in different forms of Trilobites. He shows that observers
divide them into simple and compound; the former (ocelli) are found in the genus
Harpes. These “ocelli” are said to be situated near one another, and are so large
that the group formed by them can be seen with the unaided eye; the surface
of the single “ocellus” appears, under the glass, smooth and shining. From the
description and the figure of the eye enlarged, from Barrande, it would seem as if
each eye was composed of three large simple ones; so that these eyes are really
aggregate, and not comparable with the simple eye or ocellus of Limulus and the
fossil Merostomata.t Moreover, the situation of these so-called ocelli is the same as
that of the compound eyes of other Trilobites.
The Trilobites with compound eyes are divided into two numerically very dissimilar
groups; the first comprising Phacops and Dalmanites alone, and the second embracing
1 The eyes of the fossil Merostomata (Eurypterus and judging by Mr. Woodward’s figure, exactly homologous with
Pterygotus) are evidently in external form and position, the ocelli and compound eyes of Limulus.
2, A. 8. PACKARD, JR., ON THE ANATOMY
all the remaining Trilobites, excepting of course the eyeless genera, Agnostus,
Dindymene, Ampyx and Dioride. The eyes of Phacops and Dalmanites are said by
Quendstedt and Barrande not to be compound eyes in the truest sense, but aggregated
eyes (Oculi congregati). But judging by Barrande’s figures of the eyes of Phacops
fecundus and P. modestus (Barrande, Vol. 1, Suppl. Plate 13, figs. 12 and 22), and
our observations on the exterior of the eye of an undetermined species of Phacops,
kindly sent us by Mr. J. F. Whiteaves, Palaeontologist of the Canadian Geological
Survey, we do not see any essential difference between the form and arrangement of the
corneal lenses of Phacops and Asaphus, and are disposed to believe that the distinctions
pointed out by the above named authors are artificial.
For my material Iam mainly indebted to Mr. C. D. Walcott, who has so satisfactorily
demonstrated the presence in Trilobites of jointed cephalothoracic appendages. On
applying to him for specimens, and informing him that I wished to have sections made
of the eyes of Trilobites to compare with those of Limulus, he very generously sent me
his own collection of sections of the eyes of Asaphus gigas and Bathyurus longistrinosus,
which he had prepared for his own study, also other eyes, and especially the shell or
carapace of a large Asaphus, from Trenton Falls, showing the eye and the projecting
points of the corneal lenses. Prof. Samuel Calvin kindly sent me the eyes of an
unknown Trilobite from the Trenton limestone, one specimen showing the pits made in
the mud by the projecting ends of the corneal lenses, while to Mr. Whiteaves I am
indebted for eyes of Calymene.
First turning our attention to the casts and natural sections; that of the interior of the
carapace, including the molted cornea of Asaphus gigas, is noteworthy. When the
concave or interior surface of this specimen is placed under a magnifying power of fifty
diameters, the entire surface is seen to be rough with the ends of the minute solid conical
corneal lenses which project into the body-cavity. This is exactly comparable with the cast
shell of Limulus and its solid corneal lenses projecting into the body-cavity (plate 6, fig. 1).
Those of Asaphus only differ in being much smaller and more numerous, and perhaps
rather more blunt. Without much doubt the ends of the corneal lenses of Asaphus, as
in Limulus, were enveloped in the retina, the animal molting its carapace, the hypo-
dermis with the retina being retained by the Trilobite, while the corneal lenses were cast
with the shell.
In the specimen of the unknown Trilobite from Iowa received from Prof. Calvin, the
corneal lenses, seen externally, are quite far apart, arranged in quincunx order ; the
lenses are round and decidedly convex on the external surface. In a natural section,
where the eye has been broken into two, the conical lenses are seen to extend through
the cornea as cup-shaped or conical bodies, and are quite distinct from the cornea itself.
In another broken eye of the same species, the cornea is partly preserved, and two of the
corneal lenses are seen to extend down into and partially fill two hollows or pits; these
pits are evidently the impressions made in the fine sediment which filled the interior
of the molted eye or cornea!
Thus in the Asaphus gigas noticed above, we have the entire inside of the cornea with
the cone-like lenses projecting from the concave interior; while in the last example we
have the impressions made by the cones in the Silurian mud which silted into the cornea
after the Trilobite had cast its shell.
AND EMBRYOLOGY OF LIMULUS. 23
Farther evidence that the Trilobite’s eye was constructed on the same pattern as that of
the living horse-shoe crab is seen in the sections made by Mr. Walcott. We will first
describe, briefly, the eye of Limulus. Plate 6, fig. 1 represents a section through the cornea
of Limulus; cor, the cornea which is seen to be a thinned portion of the integument ; pec,
indicates one of the nutrient or pore canals, which are filled with connective tissue extend-
ing into the integument from the body cavity; c/,is one of the series of solid conical corneal
lenses. These are buried partly in the black retina, and the long slender optic nerve just
before reaching the eye subdivides, sending a branch to each facet or cornea, impinging
on the lens. Fig. 6 represents a vertical view of the corneal lenses or facets, magnified
fifty diameters, as seen through the transparent cornea. It will be seen that they are
slightly hexagonal and arranged in quincunx order; their external surface is flat, though
that of the ocelli is slightly convex.
Now if we compare with the horse-shoe crab’s eye that of the trilobite, Asaphus gigas,
(plate 6, figs. 8, 9), we see that the eye is raised upon a tubercle-like elevation of the cara-
pace ; the integument (it) is about as thick as that of Limulus, and it contains similar pore-
canals (pe); the eye itself or cornea, occupies a rather small area; its exterior surface,
instead of being smooth as in Limulus, is tuberculated, or divided up into minute convex
areas; these convexities are the external surfaces of the corneal lenses, which extend
through the cornea, so that its surface is rough instead of smooth as in Limulus ; ed indi-
cates one of the corneal lenses which are arranged side by side; they are of slightly dif-
ferent lengths and thicknesses, and the rather blunt free ends project into the cavity of
the eye, which in the fossil is filled with a translucent calcite.
It is quite apparent that we have here the closest possible homology between the hard
parts of the eye of Limulus and of Asaphus. Another point of very considerable
interest is a tolerably distinct dark line (fig. 9, rt), which seems to run across from one
lens to another, and which may possibly represent the external limits of the retina or
pigment mass in which the ends of the lenses were probably immersed; should this be
found to be the indication of the outer edge of the retina, it would be a most interesting
fact in favor of our view of the identity between the eyes of the two types of Palaeo-
carida under consideration.
Another section sent us by Mr. Walcott is represented by plate 6, fig. 8; it is from
Asaphus gigas, but represents a less elevated and broader part of the eye than that seen
in plate 6, fig. 9; the section does not so well exhibit the free ends of the corneal lenses.
Fig. 7 a represents a tranverse view of the eye of Asaphus gigas, showing the hexagonal
form of the facets, and their quincunx arrangement; so much like that of Limulus
(fig. 6).
This hexagonal appearance of the corneal lenses is still retained in natural vertical sec-
tions of eyes of the same genus, where with a good Tolles lens the sides of the cones are
seen to be angular. Plate 6, fig. 10, represents a few such cones. I do not understand to
what this hexagonal appearance is due; for both in Limulus and the Trilobites the corneal
lenses appear usually to be round, and yet in making a camera drawing (as are
all those here represented) of the cornea of Limulus from above, they present the same
hexagonal appearance as in Trilobites. The cause of this I leave to others to explain.
24 A. S. PACKARD, JR., ON THE ANATOMY
In a section (transverse) of the cornea of Bathyurus longistrinosus, received from
Mr. Walcott, the lenses are seen to be very irregular, five- or six-sided, and very
irregularly grouped, not arranged in distinct rows.
From the facts here presented, it would seem evident that the hard parts of the
eye of the Trilobites and of Limulus are, throughout, identical. The nature of the
soft parts will, as a matter of course, always remain problematical; unless the dark
line indicated in plate 6, fig. 9 (rt?) really represents the outer edge of the pigment
of the retina; but however this may be, judging by the identity in structure of
the solid parts, we have, reasoning by analogy, good evidence that most probably
the eye of the Trilobites had a retinal mass like that of Limulus, and that the
numerous small branches of the long slender optic nerve (for such it must have
been) impinged on the ends of the corneal lenses. It has been shown by Grenacher
and myself that the eye of Limulus is constructed on a totally different plan from
that of other Arthropods; I now feel authorized in claiming that the Trilobite’s eye
was organized on the same plan as that of Limulus; and thus when we add the
close resemblance in the larval forms, in the general anatomy of the body-segments,
and the fact demonstrated by Mr. Walcott that the Trilobites had jointed round
limbs (and probably membranous ones), we are led to believe that the two groups
of Merostomata and Trilobites are subdivisions or orders of one and the same sub-
class of Crustacea, for which we have previously proposed the term Palaeocarida.
Structure of the simple eyes or ocelli. Owing to insufficient material, Grenacher did not
study the simple eye of Limulus. The structure of an ocellus repeats very closely that of
one of the individual facets or members of the compound eye. At the point where a
simple eye is situated, 7. e., on each side of the median spine near the front edge of the
carapace, the chitinous integument suddenly becomes much thinner; the integument is
divided as in the cornea of the compound eye into three portions, an outer thin yellow clear
portion; a much thicker finely laminated part with fine granules and capable of being
stained reddish ; and a much thicker clear part, which has about a dozen layers, not seen in
the third inner layer of the integument next to the edge of the compound eye. The
integument is also penetrated throughout by canals filled with connective tissue. The
surface of the cornea is slightly convex. Next to the base of the large corneal lens, there
is a chitinous portion (p) which is less dense than the adjoining clear part, becoming
stained a pale crimson by picro-carmine. Just as in the facets of the compound eye the
laminated part of the cornea extends conically into the. base of the corneal lens, forming
a cone within the larger lens; this part (2) is less dense than the lens, and is usually
more distinctly conical than the lens itself. The latter is a large solid mass of chi-
tin, with two curved lines (plate 5, fig. 13, cl) in some examples, showing a slight ten-
dency to lamination; in form it is longer than thick, and very obtusely rounded at the
end, being as thick near the end as at the base; in form therefore the lens differs
decidedly from that of the corneal lenses of the compound eye. That the corneal lenses
of both simple and compound eyes of Limulus are solid is proved by the fact that they
do not stain reddish like the laminated portion of the cornea and adjacent integument,
and also because they are excavated as solid cones projecting inwards from the cast
AND EMBRYOLOGY OF LIMULUS. 25
chitinous crust of the animal. In a specimen (fig. 12), not treated with acid, the end
of the cone is seen to be buried in pigment, and in one out of many sections, i. e., that
figured 14, the cut went directly through the ocellar nerve, which, as seen in the
figure, after leaving the branch distributed to the other ocellus, proceeds undivided
to a distance about equal to the diameter of the corneal lens, when it gives off
minute fibres which pass up and lose themselves in the pigment layer near the base
of the cone. The main nervous trunk is seen to impinge directly on the end of the
pigment mass surrounding the end of the lens, while branches pass up into the pigment
on each side of the lens; so that the latter is immersed, so to speak, in a multitude of
nervous fibres.
On treating the pigment with acid, and cutting a section on one side of the solid lens, as
at plate 6, fig. 5, the entire mass of connective tissue and pigment is seen to be permeated
with nerve-fibres, which end im slight, bulbous, partly hyaline expansions next to the
chitinous integument.
Nothing like the rhabdom or retinula was to be observed, and I doubt much if they
exist. or any nucleated ganglionic cells.
We have, then, in the simple eye or ocellus of Limulus a repetition of the general
structure of any one of the individual eyes of the compound organ of vision, without the
rhabdom and retinula. The simple eye, then, in the horse-shoe crab is apparently rather
more rudimentary than one of the elements of the compound eye; and it is difficult to
conceive of-a much simpler form of eye in an arthropodous animal ; hence it can not be said
of the ocellus of Limulus that it is not less primitive in structure than the compound eye;
for we have here the eye reduced to a corneal lens, retina and optic nerve, the simplest
association of elements in any organ of vision.
Comparison of the ocellus of Limulus with the eyes of Myriopods. When we compare
the ocellus of Limulus with that of the Arachnida, and of larval insects, there is
very considerable difference. In the form of the corneal lens, however, the ocellus
of Limulus somewhat approaches that of the Myriopods, as lately worked out by
Graber."
An examination of the agglomerated eye? of Bothropolys bipunctatus Wood —a
genus allied to Lithobius, the species here named being common in Northern
California at the base of Mount Shasta — shows us that the myriopod eye, as a whole,
is entirely unlike that of Limulus.
The brain, in the first place, is on the usual Arthropod type; the hemispheres being
symmetrical, and the relative position of the larger ganglion-cells being like those
of hexapod insects. A large mass of ganglion-cells is situated at the origin of
each optic nerve. As regards the eye or group of eyes, the individual eyes are abont
eighteen in number and closely aggregated, though each simple eye or facet is
circular and its surface convex. The cornea in the specimen examined, while externally
convex, is concave on the inside, the cornea being no thicker in the middle than
1 Ueber das unicoreale Tracheaten- und speciell das Archiv. fiir mikr. Anat. Bd. 17, heft. 1. Aug. 14, 1879.
Arachnoiden- und Myriopoden-Auge. Von V. Graber. ? Our sections were kindly made for us by Mr. Mason.
26 A. S. PACKARD, JR. ON THE ANATOMY
on the sides, not being lens-shaped as usual in the Myriopod and Arachnidan eyes,
as described by Graber and Grenacher. The cornea is laminated, as in the integument.
That the cornea is apparently normally concave in this genus, seems evident from
the fact that the soft parts next to be described fill the concavity of the cornea. The
solid parts, then, of this Myriopod, are quite unlike the larger corneal cones of Limulus ;
though in general, the corneal lens of the Myriopods examined by Graber appear
to be homologous with the cones of Limulus.
When we compare the soft parts of the eye of Bothropolys and the Myriopods in
general with those of Limulus, we find nothing in common.
In Bothropolys the soft parts consist of the layer of rather large, round, nucleated,
epithelial cells, situated next to the cornea, and called by Graber the “ lens-epithelium
or vitreous-body cells,’ (Glaskérperzellen). This layer (absent in Limulus) is suceeeded
by the layer of short, slender-pointed rods, as figured by Graber, with large nucleated
cells in the tissue enveloping them. This layer of rods, homologues of the rods of
other Tracheate and Crustacean eyes (also absent in Limulus) is succeeded by the
retina, a continuation of the hypodermal epithelial layer, the cells of the latter
being much more distinct and larger than the hypodermal cells of Limulus.
The retina, whose structure differs from that of Limulus in having no “ retinula,” is
succeeded by the ganglion opticum, (absent in Limulus), which consists of a layer of
-very large ganglion-cells rounded and overlapping each other; their fibres leading away
from the eye, to form the optic nerve.
Eye of Cermatia forceps. The eye of this Myriopod appears to be constructed on the
same plan as that of other myriopods though differing in some important respects.
Though Cermatia is said to have compound eyes in contradistinction from the ocelli of
other myriopods, the latter are truly aggregated or compound, the so-called “ ocelli” being
made up of contiguous facets, the nerve fibres which supply them arising in the same
general manner from the optic nerves.
The following description is made from sections made by Mr. N. N. Mason of Provi-
dence, and loaned me for description : —
The eye is composed of a hemispherical, many facetted cornea, the lenses of which are
shallow, doubly convex, being quite regularly lenticular, the chitinous substance being
laminated as usual.
Each corneal lens is underlaid by a retina about as thick as the cornea, the inner
surface of each retinal mass being convex. Corresponding to each lens is a separate mass
of connective tissue, which increases in thickness from the end of the optic nerve
outwards towards the cornea, there being usually a clear interspace between each mass.
Within the broad stratum of connective tissue, next to the corneal lens within the retina,
is a layer of rounded “ vitreous cells” or “or lens-epithelium” of Graber. This layer is
succeeded by the series of rather large visual rods, one in each mass corresponding to
each corneal lens; these rods are long and sharp, conical at the end, the ends extending
one-half to two-thirds of the distance inwards to the inner edge of the retinal mass; they
each possess a nucleus, and the connective tissue enveloping the rods is nucleated, while
there is an irregular layer of nucleated cells near or around the ends of the rods.
AND EMBRYOLOGY OF LIMULUS. ON
a
This layer of cells is succeeded by a thin, slightly curvilinear, transverse strip of
connective tissue, passing through the entire eye, and behind it are the loose, nucleated
spherical cells forming the ganglion opticum, among which the fibres of the optic nerve
pass.
The brain of Cermatia forceps, as shown by several sections, is modelled on the same
plan as we have observed in Bothropolys and so far as we see, the myriopod brain corre-
sponds more closely in its general form and structure with that of the Insects than of the
Crustacea. The large, thick optic nerve arises from the upper side of each hemisphere.
The median furrow above is deep, and on each side is a mass of small ganglion-cells ; also a
mass in the deep sinus below the origin of the optic nerve, and another mass on the inferior
lobe extending down each side of the oesophagus, probably near or at the origin of the
posterior commissure. These masses, i. ¢., those on the upper and under side of the brain,
connect on each side of the median line, and in this respect the brain is as in
Bothropolys. There are no large ganglion cells, as in the Crustacea and in Limulus.
It will be seen from this brief account that the eyes of Limulus differ from those of
Myriopods in wanting the lens-epithelium, the rods, and a ganglion opticum, which are
present in other Arthropods, both tracheate and branchiate.
Tue BRAIN AND ITS INTERNAL STRUCTURE.
Several years ago, before the present interest in the study of the brain of Arthropoda
had arisen, I made an attempt to study the brain or supra-oesophageal ganglion of the
horse-shoe or king crab. Mr. T. D. Biscoe kindly cut a number of sections for me.
These were unstained, and owing to interruptions were not examined until the past
winter, when with the aid of a large number of other sections made by Mr. N. N. Mason of
Providence, R. I., I have been enabled to present the following results. The brain was
in some cases stained with osmic acid in the manner described by Dietl' and adopted by
Newton — being taken from the living animal and allowed to remain in the osmic acid
from twenty to forty hours.
The best results, however, were obtained from sections of two brains, one of which had
been several years in alcohol, and which took the osmic acid stains very evenly ; better
results ensued by staining, after hardening the brain for two or three days in alcohol;
the brain is so large that it does not harden readily, when put fresh and living in osmic
acid alone.
When sections were not properly stained in the centre with osmic acid, they were further
treated with a picro-carmine stain with good results. Mr. Mason embedded the brain, when
1The following articles bearing on the brain of the Ar- Flégel. Ueber den einheitlichen Bau des Gehirns in den
thropods have been consulted; the actual bibliography of verschiedenen Insectenordnungen. Zeitschr. wissensch.
the subject being somewhat fuller. Zoologie, Bd. xxx, Suppl. 1878, p. 556.
Ofsiannikoff. Ueber die feinerer Structur des Kopfeang- Newton. On the brain of the Cockroach, Blatta orientalis.
lions bei den Krebsen, besonders beim Palinurus locusta. By E. T. Newton. Quart. Journ. Microscopical Science,
Von Ph. Ofsiannikof. Mém. Acad. Imp. Sc. St. Peters- July, 1879, p. 340.
bourg. Tom. VI. No. 10, 1863. Krieger. Ueber das Centralnervensystem des Fluss-
Dietl. Die Organization des Arthropodengehirns. Von krebses. Von K. R. Krieger. Zeitschrift fiir wissenschaft.
M.J.Dietl. Zeitschr. wissensch. Zool. Bd. 27,1876, p.488. Zoologie. Bd. xxx111, Jan. 23, 1880, p. 527.
28 A. 8. PACKARD, JR. ON THE ANATOMY
hardened and after remaining twenty-four hours in gum water, in a mixture of equal parts
of paraffine, wax and olive oil, so that the consistency of the imbedding substance was
nearly as soft as the tissue to be cut. The sections were made by a microtome devised by
Mr. Mason, and were mounted in glycerine jelly.
While between two hundred and three hundred sections were made, by far the
best results were obtained by a series of fifty-six sections, cut by Mr. Mason from one
brain, and forty-four from the upper four-fifths of another brain, the slices being either
zoo OY sty Of an inch in thickness; the best results of course were obtained from
the thinner sections. These were deeply stained of a dark-brown, the ganglion-cells and
nerve-fibres being much lighter than the nucleogenous masses forming the larger part
of the brain, these being dark brown, the former tawny or yellowish brown.
The examination of a few sections of the brain of the lobster and the locust also kindly
prepared by Mr. Mason, enabled me the more readily to understand the recent papers of
Dietl, Newton and Krieger on the brain of the crawfish and insects, and afforded a stand-
ard of comparison with which to study the topography and histology of the brain of
Limulus.
General anatomy of the brain. The position of the brain in relation to the body
walls and digestive tract is seen in the section of the adult animal on plate 2, fig. 1, br.
The central nervous system consists of an oesophageal collar made up by the consolidation
of six pairs of postoral ganglia from which nerves are distributed to the six pairs of
gnathopods. The ring is closed in front by the supra-oesophageal ganglion, or the
partial homologue of that pair of brain-centres in the normal Crustacea and Insects. It
will be remembered that in these Arthropods the brain is situated in the upper part of the
head, in a plane parallel to, but quite removed from, that of the rest of the ganglionic
chain; in Limulus, however, the brain is situated directly in front of and on the same
plane with the horizontal oesophageal collar, and the abdominal portion of the central
nervous system.
We now come to the singular relations of the ventral system of arterial vessels to the
nervous system. This is fully described by A. Milne-Edwards. After describing the
vascular ring surrounding the oesophagus he remarks: “ Lorsqu’on ouvre cette portion
du systeme artériel, on trouve dans son intérieur le collieur nerveux oesophagien, le reste
de la chaine ganglionnaire et la plupart des principaux nerfs qui y sont baignés par le sang.
Les artéres ne sont par seulement appliquées sur le systeéme nerveux, comme chez les
scorpions, ou développées a la surface de ce systéme de facon a le recouvrir ; elles logent
celui-ci dans leur cavité. Cette disposition rappelle celle du réservoir sanguin dans
Pintérieur duquel M. de Quatrefages a constaté l’existence des ganglions cerébroides chez
les Planaires, et celle du vaisseau ventral des Sangsues, découvert par Johnson.” He then
states that these singular relations of the apparatus of innervation with the arterial system
of Limulus have been seen, but very incompletely, by Professor Owen, and are more
intimate than this eminent anatomist thinks, and quotes as follows from Owen’s
Comparative Anatomy and Physiology of Invertebrate Animals (1855, p. 320): “The two
large lateral branches (celles qui j’appelle les crosses aortiques) form arches which curve
down the side of the stomach and the oesophagus, giving branches to both those parts and
AND EMBRYOLOGY OF LIMULUS. 29
to the intestine, and becoming intimately united with the neurilemma of the oesophageal
nervous collar. They unite at the posterior part of that collar, and form a single vessel,
which accompanies the abdominal nervous ganglionic chord to its posterior bifurcation,
when the vessel again divides. Throughout all this course, the arterial is so closely
connected with the nervous system as to be scarcely separable or distinguishable from it.
The branches of the arterial or nervous trunks which accompany each other may be
defined and studied apart.” Afterwards in his “Anatomy of the King Crab,” p. 24,
Professor Owen thus writes of the arterial system: ‘On each side the origin of the
‘ocellar artery arises one of double the size (7b., e.e), which, diverging from its fellow,
curves outward and downward over the fore-part of the intestinal canal (plate 2, A, fig. 1s);
it gives off, in this course, a branch which ramifies upon the gizzard, a second to the
intestine and liver, the main trunk being continued to the nervous annular centre where it
expands, and combines with its fellow of the opposite side to forma sheath for that
centre analagous to a ‘duramater. This rather loose sheath is continued along the
ganglionic ventral cord, and is prolonged, like a loose neurilemma, upon the nerves
sent off therefrom, as it is upon those in connection with the annular centre.” !
Our own dissections and microscopic sections have taught us that the brain is
enclosed by a thick neurilemma, which is different histologically from the arteries, contain-
ing no muscular layer. This layer closely envelops the brain-substance, and there is cer-
tainly no space between the brain and its neurilemma for the passage of the blood. Now
the two lateral arteries descend fiom the anterior end of the heart, and open just behind
the brain into the space between the oeosophagal ring, and its neurilemma, so that
the latter is bathed in blood; the artery merges into the neurilemma, the sinus
being largest on the upper side of the oesophageal ring. On each side of the back
of the brain is a large artery for the supply of the brain, but there are no small arterial
branches. The whole nervous cord behind the brain, including the ganglionic
enlargements, is loosely invested by this neurilemma, the space being very wide
between the nervous cord and its loose coat, so that the nervous cord and ganglia
‘are directly bathed by the blood. This neurilemma (or perineurium) also invests
the larger nerves sent off from the ganglia. That the nervous cord fills up but a portion
of the space within this outer coat may be seen by reference to plate 6, figs. 12-14.
In embedding the portions of the nervous cord to be cut, the interspace is filled with
the paraffine preparations. We thus conclude, that while Owen and Milne-Edwards’ view
is substantially correct, it should be modified somewhat, viz., the blood does not flow
around the brain itself, though it may flow around the nerves sent to the simple
and compound eyes ; and the nervous system appears to us not to be surrounded by a true
artery, but that the thick permeurium becomes a vicarious arterial coat.
The brain in a Limulus ten inches long, exclusive of the caudal spine, is about
six millimetres in diameter; it is broad and flat above, and on the under side full and
1 Having only the first edition of Owen’s Lectures on the remarkable feature of the nervous axis of this Crustacean
Invertebrates in my library, I can not verify the quotation is its envelopment by an arterial trunk.” From this it
above made from the edition of 1855. In a recent letter would appear that Professor Owen was the first to perceive
from that distinguished anatomist he quotes as follows from that the nervous cord is enveloped by the artery, though
p- 309. “The sides of the great oeosophageal ring are these organs were afterwards elaborated described and
united by two transverse commissural bands; but the most figured by A. Milne- Edwards.
30 A. S. PACKARD, JR., ON THE ANATOMY
rounded; on the upper side is a broad, shallow, median furrow, indicating that it is a
double ganglion. Three pairs of nerves and a median unpaired one (the ocellar) arise
from the upper third of the anterior face of the brain. The two optic nerves are the
largest, arising very near the upper side of the brain, one on each side of the median
furrow, so that the second and third sections made by the microtome, pass through them.
Next below (from above downwards), is the origin of the single nerve sent to the two
ocelli. We have not traced this nerve as far as the ocelli, but Milne-Edwards states that
near the ocelli it divides into two branches. One of these two branches we figure in the
drawing of the ocellus (plate 5, fig. 14). On each side of the ocellar nerve, and in nearly
the same plane, arise two tegumental nerves, and directly below them a second pair of
larger nerves (fronto-inferior tegumental) descend ventrally. ©
No nerves arise from the inferior half or two-thirds of the brain, which is smooth and
rounded, with no indications of a median furrow.
It will thus be seen that, as stated by A. Milne-Edwards, there are no antennal nerves,
such as usually exist in Arthropods with the exception of the Arachnida. This we have
proved in the same manner as Milne-Edwards (though at the time ignorant that he had
pursued the same method), by laying open with fine scissors the envelop (arterial or peri-
neurial) which reaches to the posterior end of the brain, and seeing that the fibres of the
nerves sent to the first pair of gnathopods originate quite independently of the brain
itself. Moreover, after making sections of several brains, it is easy to see that only the
commissures connecting the brain with the oesophageal ring are present; the nerves to
the first pair of gnathopods not arising from the brain itself, but from the anterior and
outer part of each side of the oesophageal ring, 7. e., where the ring joins the brain; the
commissure is very short in the larva, and obsolete in the adult.
Internal structure and histology of the brain. Most of the numerous stained and
unstained transverse sections threw but little light on the topography ; the nerve-fibres
and ganglion-cells being apparently arranged horizontally, and mostly confined to the
upper part of the brain ; at any rate it was not until I had studied the horizontal sections,
that I could gain an insight into the relation of parts as shown by sections cut vertically
from in front backwards.
Finally a series of about fifty sections each, from two brains, cut by Mr. Mason hori-
zontally from above, downwards, and carefully mounted in consecutive order, each section
being numbered, has enabled me to arrive at a tolerably complete idea of the topography
of the brain, so that I could mentally construct a model of the brain of Limulus, and
compare it with the normal arthropod brain.
The histological elements are four in number : —
1. Large ganglion-cells, filled densely with granules, and with a well defined nucleus
similarly filled and containing a granulated nucleolus. These cells (plate 7, fig. 3c) may
be crowded or loosely grouped; the granular contents varying in density, and the walls
of the cell thick and loose or thinner and dense ; they terminate in large nerve fibres.
They are similar in form and size, though not in topographical arrangement, to the
large ganglionic cells of the lobster’s brain (see plate 7, fig. 1b).
AND EMBRYOLOGY OF LIMULUS. 831
2. Smaller ganglion-cells, much more numerous than the larger, more hyaline, having
much fewer granules and with the nuclei less distinctly outlmed (plate 7, fig. lc). They
are seen to be somewhat smaller, but otherwise like those in the brain of the lobster,
which we also figure (plate 7, fig. 1d).
3. Nerve fibres; these, like the large sized ganglion-cells from which they originate,
are stained tawny yellowish brown with osmic acid. ‘These fibres (plate 7, figs. 5a, 3b)
are large and coarse, their fine granular contents homogeneous, and they closely resemble
the nerve-fibres distributed to the compound and simple eyes of Limulus. Certain fibres
near the origin of the optic nerves are distinctly nucleated at intervals (plate 7, fig. 3b).
4. Minute cells, or rather nuclei, very numerous and forming the large ruffle-like
masses enveloped in connective tissue and constituting the greater part of the brain.
They stain dark brown with osmic acid, so that these fungoid or ruffle-like bodies are read-
ily distinguishable by their dark brown color from the surrounding tissues, which stain
much lighter. In unstained sections simply hardened by alcohol, the tissue or bodies
formed by these nuclei is darker than the other tissue, which is white. As these masses
or bodies appear to be wholly made up of nuclei, I propose that they be distinguished by
the name of nucleogenous bodies.
The brain itself is enveloped by a very thick, dense membrane, which I am disposed
to regard as a neurilemma, homologous with that of the lobster’s brain, though much
thicker. It is formed of a fibrous connective tissue, and probably some elastic tissue,
which directly penetrates into the brain-substance, forming a network of connective
tissue enclosing the nucleogenous bodies ; with occasionally clear nucleated portions in the
spaces between the balls of minute nuclei, 7.e., the nucleogenous bodies. The fact that
this envelop of the brain, a direct continuation of the so-called arterial coat of the oeso-
phageal ring, is so intimately connected with the brain-substance itself, and that there is no
space between it and the brain for the passage of the blood, and that an artery is situated
outside of the brain (plate 7, fig. 4, a7), indicates strongly that this corresponds to the neuri-
lemma of other invertebrates, or what Krieger designates as the “ perineurium.” It forms
a fold on the upper side of the oesophageal ring, and thus becomes the direct continuation
of the large lateral aortic branches; but it seems to be formed of short, tortuous fibres of
connective tissue, with no true muscular fibres, such as are seen in transverse sections
of the smaller arteries.
We will now describe the topography of the brain as seen in sections, beginning with
the upper surface, at the origin of the optic nerves, and going downwards. After the
microtome has made five slices ;5/59 — $y ch thick, removing the upper part of the low
elevations on each side of the broad, shallow median furrow, a section (plate 7, fig. 1) is
obtained, which extends through the optic nerves, and also includes a part of the commis-
sures by which the brain is connected with the oesophageal ring, the commissures being
situated on the dorsal side of the central nervous system; while the brain is here rather
short antero-posteriorly, the median cleft or anterior end of the oesophageal opening
projecting well into the brain; the latter is more symmetrical in life than indicated in the
figure, the brain being probably contracted a little in alcohol, and in the gum, while the
razor made a slanting cut, so that while it passed through the middle of the right optic
nerve, it merely grazed the edge of the opposite nerve.
32 A. §8. PACKARD, JR., ON THE ANATOMY
At the uppermost region of the brain the sides are occupied by the nucleogenous bodies
(nb), extending nearly to the back of the brain, but not reaching near the front.
Within, but next to these nucleogenous bodies, are large sub-spherical masses of nu-
cleated cells (fig. 1, em), from which the optic nerves apparently arise. (Only the outer
edge of the left mass has been cut through.) These cells are abundant and represented
by fig. 2. They are hyaline, contain few granules, as do the nuclei. They are a
little smaller than those of the lobster, which we have drawn to the same scale with
the camera lucida, but it will be seen that they are identical morphologically. En-
closing in part the left mass of cells is a Y-shaped mass of fibres and nuclei (y) which
reminds one of the trabeculae of the cockroach’s brain. This apparently is not of much
importance, and is an offshoot from the central mass of nerve-fibres, as in five sections
below, it merges with the other fibres. Just behind the middle of the brain, on each side
of the median line, is a group of large ganglion-cells adjacent to the rounded cellular
masses. Behind each group of large ganglion-cells originate the fibres of the com-
missures connecting the brain with the oesophageal rmg; on the outside of the com-
missural nerve-fibres is a group of large ganglion cells longitudinally disposed. As we
descend from the top to the base or under side of the brain, the commissure is cut
through and disappears, the brain extending considerably below the oesophageal ring.
In the next section the large ganglion-cells are seen to be scattered through the middle
of the posterior fibrous portion of the brain.
In the tenth section two large ruffle or fungus-like nucleogenous bodies appear, one on
each side of the median line, with several smaller ones; and at the back part of the brain
a bridge or transverse bundle of fibres now appears, connecting the mass of nerve-fibres
on each side of the brain. This bridge becomes thicker as seen in the fourteenth
section (plate 7, fig. 2).
This latter section passes through the lower edge of the right optic nerve (op 7).
The fibrous region is now invaded more than above by the nucleogenous bodies (nb), the
former being mostly restricted to the posterior half of the brain, the brain itself being
longer, and the oesophageal opening not extending so far into the middle of the brain. Its
bilateral symmetry is seen to be tolerably marked. The Y-shaped fibrous mass is broad
and obscurely marked; while the nucleogenous bodies occupy nearly two-thirds of the
area of the section, the area having extended from the sides around to the front, nearly
meeting on the median line of the brain. There are two central areas containing large
ganglionic cells, and two other similar areas farther back and nearer the sides of the
brain.
Plate 7, fig. la, represents the size of the large ganglion-cells of Limulus, compared with
fig. 1b of a similar cell from the lobster’s brain; the two being identical in size and in den-
sity of the protoplasmic granules.
Plate 7, fig. 3, represents a section through the front part of the right side of the
brain; it shows the origin of the optic nerve from the small sized ganglion-cells in the
central region of the brain. That the nerve-fibres within the brain are sometimes nucle-
ated is shown by the adjoining figures (3a, 3b), where the nerves are cut transversely.
Plate 7, fig. 4 represents a section through the ocellar nerve, just grazing the right teg-
umental nerve. The fibrous portions are still more restricted, and they extend to the
AND EMBRYOLOGY OF LIMULUS. 33
insertion of the nerves; the fibres are arranged into transverse as well as longitudinal
bundles, of which the more important ones are figured, but of their origin and termination
nothing definite has been ascertained.
Plate 7, fig. 5 represents a section through the middle of the ocellar and two tegumental
nerves, and though it is obvious that the razor cut tolerably even, as the nerves are quite
evenly severed, yet it will be seen how unsymmetrical the brain at this point is, after allow-
ing for unequal contractions due to reagents. The median line between the two sides is
very obscure and irregular; the mass of large ganglion-cells is quite large, and disposed in
an unbroken mass on each side of the median line, should one be drawn through the brain.
On the right side the fibres are almost wholly confined to an area near the middle of the
right half, while the left side of the brain is mostly occupied with fibres, the nucleogenous
bodies not extending to the back of the brain, as on the opposite side. At this part of
the brain, in the more symmetrical specimen of the two brains specially studied, the
nucleogenous bodies occupy nearly two-thirds of this plane of the brain; while the
posterior group of large ganglion-cells is more extensive than above, and there are now
but faint traces of the “ bridge” of new fibres.
Tn a section lower down, near the middle plane of the brain, the nucleogenous bodies
extend to the back of the brain, thus enclosing the mass of large ganglion-cells, which
hes in front towards the middle of the brain; the nucleogenous bodies, at least the longer
narrower masses, extend in towards the centre of the brain, so that they seem to radiate
outwards from near the centre to the periphery.
In a section through the pair of lower tegumental nerves (fig. 6), in the same brain as
represented at fig. 5,and on the same side, the fibrous masses are seen to be greatly
reduced in extent, now filling up narrow spaces between the nucleogenous masses which
converge towards the interior of the brain. The fibres evidently originate from the
smaller and larger ganglion-cells, and pass forward and outward among the ruffle-like
nucleogenous bodies. In the section here figured, the large ganglion-cells extend to
the extreme back of the left side of the brain.
In another section below the nerves (fig. 7), the fibrous portion does not apparently
reach the front, nor much beyond the middle of the brain, which at this point in one brain
shows but slight symmetry, no fibres being visible in the right side.
Just below the section last figured, where no nerves are sent out from the brain, and
before the sections diminish in size, the whole area seems to be filled with large rounded
nucleogenous fungoid bodies, forming about eight irregular series passing from the back
to the front of the brain, and arranged four on a side. A very few small bundles of nerve-
fibres are to be seen, but with no determinate direction. This disposition of the histolog-
ical elements extends downward to the bottom of the brain.
A transverse section of the brain from above downwards, cut just before the middle of
the brain (fig. 8), shows nearly the same arrangement of parts as in horizontal sections ;
the upper part is seen to be occupied with the two larger groups of large ganglion-cells
(Lg), the nucleogenous bodies taking up most of the remainder of the brain, while a
long bundle of nerve fibres (fa) passes from above downwards between the nucleogenous
bodies.
34 A. 8. PACKARD, JR, ON THE ANATOMY
To recapitulate and generalize from the foregoing facts: The brain is largely composed of
masses of nuclei (nucleogenous bodies), enclosed by a mesh-work of connective tissue ;
‘these bodies nearly fill up the lower part of the brain, 7. e., that part below the origin of
the nerves. In the upper half or third of the brain whence the nerves originate, the
larger and smaller ganglion-cells and bundles of nerve-fibres appear and preserve a more
or less definite topographical relation to the entire brain. The nucleogenous bodies at and
near the top of the brain are confined to each side of the brain, though masses of large
ganglion-cells, associated with smaller ones, and nuclei, one on each side, just behind the
middle, pass from below upwards; these groups of cells are more or less spherical as they
erow smaller near the under side and at the top of the brain. The ganglion-cells
altogether give rise to bundles of nerve-fibres; though it is probable that many nerve-
fibres are without beginnings from cells, but originally developed from nuclei, as the gang-
lion-cells probably are in the beginning; since, in the larval brain, no fibres are to be
seen, the brain substance consisting of cells alone. (See plate 3, fig. 5a.)
Thus the tract of nerve-fibres in each half of the brain is irregularly wedge-shaped,
the apex situated near the centre of each hemisphere, and the base spreading out irreg-
ularly on the top, thus pushing aside, as it were, and crowding to the walls on each side
the seemingly less dynamic portion of the brain, 7. e., the masses of nuclei, or undeveloped
cells (nucleogenous bodies). At the upper part of the back of the brain, just outside, at
the origin of the posterior commissures, are two longitudinal groups of ganglion-cells on
each side; these disappear below with the commissural nerves themselves.
The asymmetry of the brain, compared with that of other arthropods is remarkable ;
the large ganglion-cells are most abundant in the centre behind the middle, extending
from that point to the posterior side of the brain; a median line is only slightly indicated
by the arrangement of the fungoid bodies. The tract composed of large nerve-fibres,
with scattered ganglion-cells on the left side, is much more extensive than on the right.
Comparison with the brain of other Arthropods. So wholly unlike in its form, the want
of antennal nerves, and its internal structure, is the supra-oesophageal ganglion or brain of
Limulus, to that of the higher Crustacea (7. e., Decapoda, the brain of the lower Crustacea
not yet having been examined), that it is difficult to find any points of comparison.
Histologically, judging by my few sections of the lobster’s brain which are stained with
carmine, the brain of Limulus agrees with that of other arthropods in having similar large
and small ganglion-cells, but the topography of the cell-masses essentially differs in the
two types of brain. There are in Limulus no Ballensubstanz-masses, so characteristic of
other arthropods, — the histological elements constituting these not having yet heen dis-
covered in Limulus.
We conclude, therefore, that, topographically, the internal structure of the brain of
Limulus is constructed on a wholly different plan from that of any other arthropodous
type known, so much so that it seems useless to attempt at present to homologize the
different regions in the two types of brain. The plan is simple in Limulus; much more
complex in other arthropods, especially im the brain of the decapodous, and probably most
other Crustacea, the Decapoda haying two pairs of antennal nerves beside the optic. In
external appearance the two types of brain are entirely unlike. The symmetry of the
AND EMBRYOLOGY OF LIMULUS. 35
brain of the crayfish and lobster and insects is beautifully marked (each hemisphere
exactly repeating in its internal topography the structure of the opposite side), while
that of Limulus is obscure and imperfect.
Structure of the oesophageal ganglia. (Plate 6, fig. 11.) A section through one side of
the oesophageal ring, running through a ganglionic centre and the origin of the nerve to
one of the anterior (second?) gnathopods (gnn) shows that the topography is quite simple.
The central mass is mostly composed of nuclei and nerve fibres, the latter predominating
until the nuclei disappear towards the base of the ganglion, where the nerve to the foot-
jaw originates. On the outside of the ganglion, along nearly the whole length, are
scattered large ganglion-cells (/yc). Near the upper and outer side is a group of small,
narrow nucleogenous bodies (nb). There is a wide space for the passage of the blood
between the ganglion with its nerve and the connective-tissue envelope, which is thick and
of the same structure as the perineurium of the brain itself. This space extends along
the whole length of the nervous system to the termination of the cord, the nerves sent to
the appendages being enveloped by a continuation of the same coat. Among the large
ganglion cells are numerous smaller ones, some of which are truly bipolar, as represented
in our drawing (fig. lla); the nuclei have distinct edges, so that I regard them simply as
small-sized ganglion-cells rather than nucleated nerve-fibres.
Structure of the abdominal ganglia. There are six abdominal ganglia, the last being
larger and longer than the others. A section through the second abdominal ganglion
(plate 6, fig. 12) shows that the central mass of the double ganglion consists of longitudinal
fibres, with scattered nuclei. On the upper side in the median line is a group of large and
small ganglion-cells, and beneath is a mass extending to each side where they become most
numerous. In some sections the central fibrous mass is enveloped by an irregular layer
of ganglion-cells, some bipolar, with nerve-fibres forming a loose net work. In fig. 12 a
nerve connected by its neurilemma with that of the ganglion has been cut through; in
this nerve there are only fibres present. In fig. 15 a large nerve leading to the
abdominal appendage is seen to be sent off from one side of the double central mass; the
other side (gang) has been torn away from the one opposite.
In neither this nor in sections of the last elongated abdominal ganglion were any
nucleogenous bodies to be seen, so it seems most probable that none occur in the
abdominal ganglia.
The section here figured of the last abdominal ganglion (plate 6, fig. 14) is seen to pass
through four nerves, two on each side. The ganglion is seen to be formed by the union
of the two separate cords, which are separate just before the ganglion. Above the
ganglion on each side of the median line is a mass of large ganglian cells, of the same size
as those of the brain, associated with more numerous smaller ones. This mass extends
around and beneath each hemisphere of the ganglion, forming a layer of cells and fibres,
some of the cells distinctly bipolar, which becomes interrupted at the median line, indicated
by the deep notch in the central fibrous nerve-mass. The fibres from the laterally-
situated cells are distinctly seen passing in and mingling with the fibres of the central
nerve-mass; thus the nerves are reinforced from the peripheral ganglion cells. The
36 A. S. PACKARD, JR., ON THE ANATOMY
central masses are composed of nerves, with a few nuclei; the fibres are mostly cut across,
but occasionally short bundles of nerve fibres are seen lying across the cut ends of the
others, though near the outer edge fibres are seen originating from the cells and passing
in to the nerve mass.
FurTHER CONTRIBUTIONS TO THE EmpBryonoay or Limu.us.
The blastodermic skin or serous membrane. In my paper in the Memoirs of the Boston
Society of Natural History I stated that the blastodermic skin, just before being moulted,
consisted of nucleated cells, and I also traced its homology with the so-called serous
membrane or outer “ Faltenhulle” of the ectoderm of insects. In 1873,’ by making
transverse sections of the egg, I was able to study in a still more satisfactory manner these
blastodermic cells, and to observe their nuclei before they became effaced during and
after the moulting of the blastoderm.
On June 17th (the egg having been laid May 27th), the peripheral blastodermic cells
began to harden, and the outer layer, that destined to form the outer or “ serous” layer,
to peel off from the primitive band beneath. The moult is accomplished by the flattened
cells of the blastodermic skin hardening, and peeling off from those beneath. During this
process the cells in this outer layer lose their nuclei, contracting and hardening during the
process. Plate 3, fig. 14a shows at o the moulted empty cells with the nuclei empty and
beginning to disappear, the walls being ragged and contracted; at b is the layer
underneath of lining cells, with granules and distinct nuclei. Figs. 14¢ and 14d show the
same cells during the moult, as seen from above and sideways; 14 represents the normal
blastodermic cells, with a large, well-filled nucleus.
This blastodermic moult is comparable with that of Apus, as I have already observed,
the cells of the blastodermic skin in that animal being nucleated. This blastodermie skin
may also, in its mode of development, be compared with the serous membrane of the
scorpion as described by Metschnikoff, and with that of insects, in which at first the blas-
todermic cells are nucleated, and appear like those of Limulus. A similar moult takes
place in Apus.
On June 19th, in other eggs, the cells of this membrane were observed to be empty, and
the nuclei had lost their fine granules, and were beginning to disappear. The walls of the
cells had become ragged through contraction, and in vertical sections short, peripheral,
vertical, radiating lines could be perceived. At this time an interesting phenomenon was
observed. In certain portions of the serous membrane the cells had become effaced, tran-
sitions from the rudiments of cells to those fully formed being seen. In insects and
crustaceans, as a rule, the cells all finally disappear, the serous membrane being structure-
less and homogeneous. The relation of the blastodermic cells in the serous membrane of
Limulus is due, without doubt, to the singular function this skin is destined to perform ;
i. @., its use as a vicarious chorion, the chorion itself splittmg apart and falling off in
consequence of the increase in size of the embryo.
1 The substance of this account appeared in the American 2 See Memoirs Bost. Soc. Nat. Hist., 11, 161, foot-note.
Naturalist, Nov. 1873, vir, p. 675.
AND EMBRYOLOGY OF LIMULUS. By
Development of the internal organs. Although a good many eggs were sliced, I was
unable to discover any in the stage when the ectoderm and endoderm are differentiated,
nor to examine the embryo in the gastrula condition, if there be such. The eggs were
either in the stage of segmentation of the yolk, or the embryo was so far advanced that
the indications of the segments had appeared. This period of development of the gastrula
is evidently intermediate between the stages, plate 3, fig. 7, and fig. 10 of my first memoir
The succession in which the more important system of organs arise, is as follows :—
first the nervous'system; long afterwards the muscles and the heart. These organs are
well developed before the larva hatches, though the first indications of the mesoderm were
not observed. It is not for some time after hatching that the digestive canal as a whole is
formed; although in the gastrula condition an archenteron may probably be developed,
I have been unable to detect, after making numerous sections of eggs and embryos, any
traces of the stomach and intestine until long after the larva has hatched. The primitive
liver-tubules and the ovaries seem to arise at about the same time after the digestive canal
is indicated. The development of the renal organs was not traced, no indications of these
organs being detected.
The eyes begin to form at the time of hatching, before the digestive tract is indi-
cated. But little attention was devoted to the mode of development of the compound
eyes. They are then very small black spots, the rudimentary corneal lenses few
in number, and conical. The black retina is underlaid by a white mass; plate 4, fig. 4
represents one of the ocelli at or soon after exclusion from the egg; the external region is
clear und made up of about twenty elongated epithelial cells, with a distinct refractive
nucleus and granules; whether these are pigment cells or not we did not farther observe ;
underneath this area is the dark pigment mass in which no cells could be detected with a
4 objective and B eyepiece ; the ends of the epithelial cells seem to sink into the mass.
Development of the nervous system.' After a number of unsuccessful attempts at
discovering the first indications of the nervous system, I at length discovered, in thin
sections kindly made for me by Prof. T. D. Biscoe, the nervous tract in a transverse
section of an embryo in an early stage of development, corresponding to that figured on
plate 6, fig. 10, of my first memoir. The period at which it was first observable was
posterior to the first blastodermic moult, and before the appearance of the rudiments of
the six pairs of cephalothoracic limbs (gnathopods). The primitive band now entirely
surrounds the yolk, bemg much thicker on one side of the egg than on the other, the
limbs budding out from this disk-like, thickened portion, most of which represents the
ectoderm. At the time the nervous cord was observed it was entirely differentiated and
quite distinct from the surrounding tissue of the ectoderm.”
At a later stage in the embryo, represented by plate 5, fig. 16, in my first memoir, at a
period when the body is divided into a cephalothorax and abdomen, and the limbs are
developed, by a series of sections made parallel with the under surface of the body, I could
1The principal points in this section were originally ? Plate 4, fig. 3, represents the nerve cells, and fig. 3a,
printed in a short notice in the American Naturalist, July _ the cells of the mass of connective tissue in which the two
1875, 1x, 422. cords are embedded, from a freshly hatched larva.
38 A. S. PACKARD, JR., ON THE ANATOMY
make out the general form of the main nervous cord. Plate 3, fig. 3, shows the general
relations of the cord to the body. It is large and broad, with three well-marked pairs
of consolidated ganglia in the abdomen, the two basal ones supplying the nerves for the
first and second abdominal feet. There are in the cephalothorax six pairs of consolidated
ganglia, the commissures being as yet undeveloped; the ganglia are indicated by the
minute openings in front of and behind each pair of ganglia. The ganglia of the first pair
of feet could be clearly distinguished; the brain or cephalic ganglion is probably repre-
sented at fig. 31; fig. 3a, the same enlarged. The number of ganglia, throwing out the
brain, is nine, corresponding to the six pairs of cephalothoracic feet and the two abdominal
segments, there being at this stage but two pairs of appendages in the abdomen.
The next important stage of development is seen in longitudinal sections of the larva
after hatching, and when the digestive canal is marked out. To show the ganglia best,
the section should be made on one side of the median line of the body, so as to pass
through the middle of the ganglia on one side. Plate 3, fig. 2, shows a section thus made
and stained with carmine ; the nervous ganglia remaining white are very clearly indicated ;
the commissures are not shown, but they are now developed, since the ganglia are mostly
separate.
Now if we make a longitudinal section of the young horse-shoe crab when a little over
an inch long, the disposition of the nervous cord is exactly as in the full grown individual,
as figured by A. Milne-Edwards; see also our representation on plate 3, fig. 1, br, oer.
The nervous ganglia are then united into a nearly continuous nervous collar, the opening
in front being filled up by the brain or cephalic ganglion."
Turning now to the nervous system of the larva (plate 3, fig. 2), the section here figured
shows a most important and interesting difference as regards the ganglia which supply
nerves to the appendages of the cephalothorax. They are at this time entirely separate,
the spaces between the four posterior ones, which are connected by commissures, being as
wide as the ganglia themselves are thick. There are behind the oesophagus six ganglia,
corresponding to each of the six pairs of gnathopods; while the brain is rather larger
than the others, and the first post-oesophageal ganglia are the smallest of the six, corres-
ponding to the more diminutive size of the first pair of gnathopods.
Reference may also be made here to plate 4, fig. 8, which shows the mode of origin of
the nerves distributed from the first post-oesophageal ganglion to the feet; this section
certainly very clearly demonstrates that the first pair of gnathopods belong with the post-
oral series, that they can in no sense be regarded as homologues of the antennae of
other Arthropods, and that in fact there are no antennae in Limulus, and without doubt
in the Merostomata in general. But this subject has been already discussed in the
chapter on morphology.
It is not until after the second moult that the adult condition of the nervous system is
attained, as Dr. Dohrn? has figured the separate ganglia in a larva which had evidently
moulted once, the abdominal spine being well developed. This is certainly an interesting
1 For the nature of the brain and the oesophageal gang- 2Dohrn. Zur Embryologie und Morphologie des Limulus
lionie collar, the reader is referred to the section of this polyphemus. He also represents the fourth pair of abdominal
paper on the structure of the adult brain. appendages ; the larva has but three before the first moult.
AND EMBRYOLOGY OF LIMULUS. 89
instance of the metamorphosis and cephalization of the nervous system, which is carried
on internally, though the other organs and outer body-form remain unchanged.
Development of the digestive canal. Unfortunately the mode of formation of the primi-
tive digestive cavity or archenteron was not ‘observed, as eggs showing the formation of
a gastrula could not be obtained. From this early period until after the larva has
hatched the entire canal remains unorganized, the entire body-cavity being filled between
the heart and nervous tract with yolk granules.
The earliest stage when the enteric canal was observed at all was after the different
parts — oesophagus, crop, stomach, intestines, and cloaca or rectum —had assumed their
definitive shape. Plate 4, fig. 2, illustrates a section of the larva before its first moult,
through the head. The space around the heart and digestive canal and over the nervous
cord is filled with a very loose connective tissue; the cells, which are nucleated, spindle-
shaped or triangular, being scattered, and forming a very open net-work of cells. In after-
life the cells multiply, becoming very numerous and round or oval in form. This con-
nective tissue extends throughout the entire body-cavity, the ovarian or testicular tubes
ramifying throughout the mass, as well as the liver tubules.
The section at plate 5, fig. 8, passes through the oesophagus and the crop. The former
(figs. 10, 11, enlarged) is apparently filled with a few large epithelial cells, which represent
the folds of the lining of the oesophagus. The walls of the proventriculus are very thick ;
the lumen or passage is lined with the alternating larger and smaller folds of spherical
epithelial cells, and with a thi semi-chitinous layer; the muscular layer, representing the
endoderm built up around the originally invaginated ectodermal layer forming the fore gut
or protenteron (plate 5, figs. 7, 7a), shows the epithelium of the intestine, the cells being
very irregular in size and length.
Origin of the liver. Plate 4, fig. 7, represents a section through the middle of the
cephalothorax, passing through the intestine and one of the pairs of biliary ducts. The
ducts are seen to open directly into the stomach, the duct being large, and at first there
is a primary liver-tube, which bends downward at quite an angle before passing to the
outer edge of the carapace. There are thus four primary biliary tubes, these in after
life subdividing and ramifying throughout the body-cavity to an indefinite extent. The
tubes are clear, transparent, with dark granules.
Development of the ovary. The same section represented in plate 4, fig. 7, also passes
two bodies, one on the outer side of and just below the heart, on each side of the mid-cut.
These are the rudimentary ovaries. One section (fig. 8) shows the ovarian follicles
attached to the walls of the gland, and, in fig. 8a, the ovarian eggs are just beginning to
form, constituting a mass apparently free from the walls of the ovarian tubules.
Structure of the testes and development of the spermatozoa. In our first memoir on Limu-
lus we figured the spermatozoa; since then Professor Lankester has also described them.
The argument that Limulus is not a Crustacean because the spermatozoa have tails is
somewhat vitiated by the fact that those of the barnacles have exceedingly long, well
40 A. 8. PACKARD, JR. ON THE ANATOMY
developed tails. We introduce a figure of those of a species of Lepas collected at
Penikese, an island at the mouth of Buzzard’s Bay. The head is broad and flat, plainly
sinuous seen sidewise, the centre being filled with granules. The spermatocysts (plate 3,
fig. 5) are spherical, usually containing five spermatozoa.
The tubules of the testis of Limulus are yellowish; this color is due to the presence of
numerous yellow pigment granules. Fig. 4a represents the epithelial tissue forming
the walls of the follicles (fig. 4). The spermatocysts (fig. 4d) are spherical, containing
four immature spermatozoa, while the earlier condition of the same is seen at fig. 4b,
where the sperm-cells are nucleated.
We introduce for comparison drawings (fig. 6) of the spermatocysts of a decapod
Crustacean (Libinia canaliculata), the spermatozoa (fig. 6/) being tailless and nucleated.
Certain larger cells have a large nucleus, with a small nucleolus ; the nature of these cells
we do not understand.
BIBLIOGRAPHY.
Van per Horven. Recherches sur lHistoire Naturelle et VPAnatomie des Limules, par J. Van der
Hoeven. Avec sept planches. Leyde, 1838. fol. pp. 38.
GEGENBAUR. Anatomische Untersuchung eines Limulus, mit besonderer Beriicksichtigung der Gewebe.
Von C.Gegenbaur. Mit einer tafel. Besonders abgedruckt aus dem 4. Bande der Abhandlungen der natur-
forschenden Gesellschaft in Halle. Halle, 1858. 4°. pp. 24.
Locxwoop. The Horse-foot Crab. By Rev. 8. Lockwood. American Naturalist, rv, July, 1870.
Packarp. The Embryology of Limulus polyphemus. By A. 8. Packard, Jr. American Naturalist,
Iv, pp. 257-274. July, 1870. American Naturalist, rv, pp. 498-502. October, 1870. Proceedings Bost. Soc.
Nat. Hist., June, 1871. Vol. xtv, p. 60.
On the Embryology of Limulus polyphemus. By A. 8. Packard, Jr. Proceedings American
Association Ady. Science, 19th Meeting, Troy, N. Y., July, 1871. 8°. pp. 8.
Morphology and Ancestry of the King Crab. By A. S. Packard, Jr. American Naturalist, rv,
pp- 754-756. Feb., 1871.
The Development of Limulus polyphemus. By A. 8. Packard, Jr. Memoirs Bost. Soc. Nat.
Hist., m, pp. 155-202. March, 1872.
Further Observations on the Embryology of Limulus, with Notes on its Affinities. By A. 8.
Packard, Jr. Amer. Nat., vu, pp. 675-678. Noy., 1873. Proceedings Amer. Assoc. Ady. Science. Port-
land Meeting, 1874.
On the Development of the Nervous System in Limulus. By A. 8. Packard, Jr. Amer. Nat.,
IX, pp. 422-424. July, 1875.
On an Undescribed Organ in Limulus, supposed to be renal in its nature. By A. 8S. Packard, Jr.
Amer. Nat., rx, pp. 511-514. Sept., 1875.
Structure of the Eye of Limulus. Amer. Nat., xiv, pp. 212-213. March, 1880.
Internal Structure of the Brain of Limulus. Amer. Nat., xtv, pp. 445-448. June, 1880.
Van Benepen. De la place qui les Limules doivent occuper dans la Classification des Arthropodes
apres leur developpement embryonnaire ; par Edouard van Beneden. Communiqué a la Soc. Ent. de Bel-
gique, 14 Oct. 1871. Gervais, Journ. Zoologie, 1, 1872, pp. 41-44. Annals and Mag. Nat. Hist., 1872.
Dourn. Untersuchungen tiber den Bau und Entwickelung der Arthropoden. Von Anton Dohrn.
Abdruck aus der Jenaischen Zeitschrift Wissensch., Band v1, Heft 4. pp. 582-640. 1871.
Mitne-Epwarps. Recherches sur Anatomie des Limules. Par A. Milne-Edwards. Annales des Sci-
ences Nat., xvi, pp- 67. 11 plates. Noy. 1872. Commission Scientifique du Mexique.
AND EMBRYOLOGY OF LIMULUS. 41
Owen. Anatomy of the King Crab. (Limulus polyphemus Latr.) By R. Owen. London, 1873. Trans.
Linn. Society, London. 5 plates. 4°. pp. 50.
Lankester. Mobility of the Spermatozoids of Limulus. By E.R. Lankester. Quart. Journ. Mier.
Science. Oct., 1878. pp. 453-454.
See also Strauss-Diirckheim’s Traité d’ Anatomie Comparative. 1842.
Owen’s Lectures on the Invertebrate Animals. 1843-1855.
Woodward’s papers on Merostomata. Palaeontol. Society. 1866-1878.
Huxley’s Anatomy of the Invertebrate Animals. 1877.
W. Grenacher’s Untersuchungen tiber das Sehorgan der Arthropoden. 1879.
EXPLANATION OF THE PLATES.
Prats I.
Fig. 1. Under side of a Limulus, a little over two inches long without the spine, injected to show the
abundance of the arterial twigs in the limbs and caudal spine as well as the body. The injection was made
at Penikese by the late Edwin Bicknell. J. 8. Kingsley, del.
Fig. 2. Camera lucida drawing of a living larva, showing the circulation of the blood-corpuscles in the
right under-side of the abdomen and on the left first abdominal limb. Author, del.
Fig. 3. Camera lucida drawings, showing the actual course taken by the blood corpuscles in the first
abdominal appendage of the same larval Limulus. The arrows show the direction of the currents of blood,
with the corpuscles; the blood passing from the heart down along the inner side of the appendage, and
passing by tortuous, irregular courses around by the outside, back along the base, and returning to the peri-
cardial chamber through the venous opening. This mode of circulation is much as we have seen take place
in the amphipodous Crustacea, Author, del.
Prater) ET.
Fig. 1. Transverse section of adult male Limulus, natural size, through the proventriculus [pr], showing
the cone [c], the oesophagus [oe], and the brain [07]; @, aorta, or frontal artery; col, collective venous
sinus. From a drawing made for the author at Penikese by P. Roetter.
Fig. 2. Section through the cephalothorax in front of the heart, brain, and first pair of gnathopods ;
m, muscles. J.S. Kingsley, del.
Fig. 3. Section through the cephalothorax behind the first pair of gnathopods; Af, heart; m, great longi-
tudinal adductor muscle; cp, supraneural cartilaginous plate protecting the central nervous system. The
latter not shown. J. S. Kingsley, del.
Fig. 4. Transverse section through the abdomen, showing the second abdominal, or first respiratory, foot ;
ht, heart, beneath which is the intestine; 4, origin and middle of branchio-cardiac veins, which carry the
blood from the limb to the heart. J. S. Kingsley, del.
Prats III.
Fig. 1. Longitudinal section through a Limulus about two inches long, exclusive of the caudal spine;
ht, heart; m, mouth, leading by the oesophagus to the proventriculus [pr]; cone, proventricular cone ; sé,
stomach; im, intestine; a, anus; br, brain, or supraoesophageal ganglion, behind which is a part of the
oesophageal ring [oe.7]; ng, ganglionated cord; ct, supraneural cartilaginous plate; enlarged about twice.
Fig. 2. Longitudinal section through the larva of Limulus on one side of the heart and digestive tract,
passing through the brain and cephalothoracic ganglia; 67, brain; the six other ganglia [1-6] separate from
one another, and afterwards consolidate to form the “oesophageal ring”; 1, the first ganglion which supplies
a pair of nerves to the first pair of gnathopods. [Compare plate 4, fig. 7, gn.]
42 A. §. PACKARD, JR. ON THE ANATOMY
Fig. 3. A horizontal section through the embryo long before it hatches, before the body has become flat-
tened, before the heart and digestive canal have appeared, and soon after the embryo has reached the stage
represented by plate 4, figs. 19, 19a, of our first memoir, There are six cephalothoracie ganglia [I-VI]
besides the brain, and three abdominal ones [I-III]; the first two abdominal ones corresponding to the
rudiments of the first and second abdominal appendages. 1-6, the six pairs of gnathopods; I, II, the two
pairs of abdominal legs.
Fig. 3a. Enlarged view of the brain [?], the nerve cells [4] forming the ganglion, which is enveloped by
connective tissue cells [ct]. (Is it these latter which are destined to form the nucleogenous bodies of the
adult brain ?)
Fig. 4. Follicles at end of a seminal tubule of testis of Limulus; 4a, epithelial cells of seminal tubules,
nucleated and highly refractive; x Tolles’ 1 objective C eye piece, magnified 725 diameters; 46, amber-
colored pigment cells of testis; 4c, similar but larger cells; 4d, spermatocysts of Limulus; 4e, cells associated
with the spermatocysts, with a large nucleus and a distinct nucleolus; xX Hartnack No. 9, B eyepiece.
Fig. 5. Spermatocyst of a barnacle [Lepas], 5a, side view, and 54, front view, of a spermatozoon of the
same; X 7yB.
Fig. 6. Spermatocysts of different shapes, a, 4, c, d, ¢ (X +B), and [f'] tailless spermatozoon of Libinia
canaliculata; X Hartnack No. 9.
Fig. 7. Supposed renal glands of Limulus; 8, one of the four lobes extending upwards from the main
stem [@]; ¢, chitinous bases of the gnathopods. 7a, reddish pigment bodies coloring the cellular mass of the
gland, the cells being nucleated. 74, 7c, two amber-colored yellow secreting cells scattered through the cel-
lular mass, composed of nucleated cells, as at 7a; X Hartnack No. 9, B.
Fig. 8. Tubules of liver of living Limulus; x 30 diameters; 8a, a parent cell of the smaller liver cells;
the shaded ones horn-colored, those unshaded clear; 84, free liver cell; 8c, the same with pale nuclei.
8d, liver cells of Panopeus; X } Tolles B.
Fig. 9. Sections of liver tubes stained with carmine; X } A.
Fig. 10. End of a liver tubule of Homarus umericanus; * 1B.
Fig. 11, lla. Striated muscle near insertion of leg of Limulus; x 1} C (725 diameters).
Fig. 12, 12a, 126. Sections through minute peripheral arteries near the compound eye; X } A.
Fig. 18. White fibrous cartilage of the supraneural cartilaginous plate; longitudinal section showing the
fibres on one edge and the nucleated cells in the dense structureless portion.
Fig. 14. Portion of the blastoderm lying next to the chorion [ch] with yolk granules; 14a, the same after
the outer layer [o] has begun to moult, the cells beginning to. wrinkle on the edges, and being without the
protoplasmic granules [14] seen in the deeper layer of blastodermie cells; 14e, vertical, and 14d, profile view
of the same cells after moulting, the walls contracted and wrinkled, and with the nuclei partly absent or
absorbed; X 4 A.
Pirate IV.
Fig. 1. Section through the larva some time after hatching; At, heart; ivf, intestines; nc, double nervous
cord; the muscular system well developed; am, undeveloped adductor muscle. The parenchym of the
body consists of incipient connective tissue and liver-cells.
Fig. 2. Section through the cephalothorax of the same larva as represented at Fig. 1, the section passing
through the compound eye [cc], the heart [At], proventriculus [pr], and the double nervous cord; as yet
the neurilemma is unformed, the nervous cord not being enveloped by it, this being represented by connec-
tive tissue [c¢].
Fig. 3. Nerve cells of nervous cord of a freshly hatched larva, before the digestive tract and heart are
indicated ; 3a, connective tissue cells enveloping the nervous cord of 3; from these cells the neurilemma is
probably formed.
Fig. 4. An ocellus of a larval Limulus, showing the epithelial cells [e] and the dark pigment of the retina
[7]; X 1B. The ocelli are at this stage quite far apart.
Fig. 5. Section of nervous cord [7] embedded in connective tissue [et], the section passing through the
body near the eyes of an advanced larva, in which the heart and digestive tract are developed.
Fig. 6. Section through a ganglion [g] of the same larva as represented in Fig. 5, the ganglion com-
pletely surrounded by the connective tissue [ct].
AND EMBRYOLOGY OF LIMULUS. 43
Fig. 7. Section through an advanced larva showing the origin of a pair of liver ducts from the intestines
[int], and a single primitive liver-duct [/7], of which there are two pairs; At, heart; gv, a pair of nerves sent
from the ganglion [g] to each second gnathopod.
Fig. 8. Section of an ovarian tube, with the ovarian follicles on the side; 8a, another section showing the
cell-eggs.
PLATE V.
Fig. 1. Section through the vertical folds or teeth of the fore part of the crop or proventriculus; m, mus-
cular layer; pe, pavement epithelium ; ce, columnar epithelium ; ch, chitinous layer.
Fig. 2. The central tooth of Fig. 1 magnified; x 4 A; lettering as before.
Fig. 8. Columnar epithelium from section of end of the oesophagus.
Fig. 4. Nucleated cells and fibres of the pavement epithelium of intestine; x } B; 4a, the same somewhat
enlarged.
Fig. 5. Section from posterior part of the oesophagus, showing the chitinous layer [ch]; the empty
spaces in the lobes surrounded by columnar epithelium [ce ]; the pavement epithelium [pe] supporting the
former.
Fig. 6. Pavement epithelium of rectal folds.
Fig. 7, 7a. Section of stomach of larva where the chitinous lining is absent, showing the irregularity of the
epithelium.
Fig. 8. Section through an advanced larval Limulus, the figure indicating only the portion lying under
the central lobe; At, heart; pr, proventriculus; oe, oesophagus; g, first pair of ganglia, the oesophageal ring
not yet being consolidated; gn, nerve to the first gnathopod [gp], demonstrating that the brain does not
supply the nerves to the first pair of feet; cf, connective tissue, the neurilemma not yet formed.
Fig. 9. Section of inner part of the proventriculus showing the larger teeth [¢] alternating with the
smaller ones [¢]; X } A.
Fig. 10. Section through the oesophagus; X } A.
Fig. 11. Another section of the same.
Fig. 12. Section through the simple eye or ocellus of Limulus; 3, third layer of the integument, clear and
laminated; X }.A; 2, second layer of integument finely granulated and laminated; pc, pore canals filled
with connective tissue [ct]; cl, corneal lens; , cup-shaped depression in the base of the corneal lens.
Fig. 13. Another section of an ocellus more enlarged; lettering as in fig. 12.
Fig. 14. Section through an ocellus showing the relations of the ocellar nerve and its branches [oem];
1, first and outer clear layer of the convex cornea; 2, second layer, finely laminated; 3, third, clear layer,
with a few lamin; rt, pigment layer in retina; A, hypodermis, of which the retina is a modification; cd,
corneal lens; ct, connective tissue.
Prats VI.
Fig. 1. Section through the entire compound eye of Limulus, stained with picro-carmine, showing the
relations of the cornea and corneal lenses and retina to the branches of the optic nerve; cor, cornea; 1, outer
clear, 2, middle laminated, and 3, inner clear portion of the chitinous cornea, seen to extend into the integu-
ment; pe, pore or nutritive canals filled with connective tissue; c/, corneal lenses; rt, retina; hy, hypodermis,
of which the retina is a modification. Below is the mass of connective tissue cells [ct], through which the
tortuous branches of the optic nerve pass and impinge on the ends of the conical corneal lenses; owing to the
tortuous course of the nerve-fibres, they appear not to be continuous in the thin section of which this is a
drawing. ov, ovary with cell eggs; ar, two arterial twigs; J, two liver tubes; ict, inner, darker brown con-
nective tissue of the interior of the cephalothorax.
Fig. 2. Sections of corneal lenses in the middle of the eye; the retina has been removed by acid; ci,
corneal lense: f, cup-shaped depression in base of lens ; 2a, the same from near the periphery of the eye,
where the corneal lenses are longer and more oblique directed inwards towards the middle of the eye.
Fig. 3. Epithelium of the retina around the end of a cone; rab, rhabdom; rei, retinal cells.
Fig. 4. Section of two retinulas, with the rhabdom [rhab] in the centre; X 4A; 4a, a retinula [ret]
ad with acid to show the twelve cells into each of which a ray of the rhabdom projects; x } B.
44 A. 8. PACKARD, JR. ON THE ANATOMY
Fig. 5. Section of soft parts of ocellus of Limulus, showing the subdivisions and mode of termination of
one branch of the ocellar nerve [on]; the branches are enveloped in connective tissue [cf]. The section
passes on one side of the corneal lens.
Fig. 6. Optical section of corneal lenses of Limulus, as seen through the transparent cornea, showing
their slightly hexagonal appearance; X 50 diameters.
Fig. 7. Artificial section through the eye of Asaphus, a trilobite, to show the close similarity to the cor-
neal lenses of Limulus; X } B eye-piece.
Fig. 8. Longitudinal section through the eye of Asaphus showing the corneal lenses; X } A. (Com-
pare with Fig. 1, 2, 2a, the corneal lenses of Limulus.)
Fig. 9. Longitudinal section through the eye of Asaphus gigas; cl, corneal lenses; pe, pore canal; rt?
probable indications of the upper edge of the retina?
Fig. 10. Section of part of the cornea of an Asaphus gigas which has been broken, showing several
entire corneal lenses side by side.
Fig. 11. Section through one side of oesophageal ring passing through the nerve to one of the gnathopods
or cephalothoracic feet; n/, neurilemma; sp, space between neurilemma and the ganglion; nd, small
nucleogenous bodies at top of section or upper side of oesophageal ring; Jgc, longitudinal group of large
ganglion cells, extending along the outside of the oesophageal ring; gn, gnathopodal nerve ; magnified 30
diameters.
Fig. lla. A large ganglion cell [/gc], surrounded by smaller bipolar ganglion cells, magnified 224
diameters.
Fig. 12. Section through second abdominal ganglion, n, nerve to one of the abdominal feet ; fa, fibres of
central nerves; ge, layer of large ganglion cells and nerve fibres arising from them; % 30 diam.
Fig. 13. Section through the same ganglion showing origin of nerve [7] to second abdominal foot.
Fig. 14. Section through the sixth or last abdominal ganglion passing through the nerves [7]; 2f, shows
the nerve fibres arising from the large ganglion cells and reinforcing the nerves making up the central mass,
which is seen to be composed of the union of two separate nervous ends; X 30 diameters.
Fig. 15. Transverse section through the middle of the brain, showing the arrangement of the fibres [7a],
nucleogenous bodies [7] and groups of large ganglion-cells [Zc].
Prater VII.
Fig. 1. Section through upper part of brain of Limulus, passing through the optic nerves [op 1]; ¢ m,
groups of cells from which the optic nerves appear to arise; y, Y-shaped bundle of nerve-fibres ; 7 0, nucle-
ogenous bodies on each side of the brain; 7 g ¢, groups of large ganglion-cells ; em, commissures uniting the
brain with the oesophageal ring; ” 7, neurilemma. The lettering the same for all the figures. Magnified
15-20 diameters. 1a, A large ganglion cell of Limulus; 14, the same of the lobster; 1c, small ganglion cells
of Limulus; 1d, the same of the lobster; all magnified 225 diameters to show their relative size and form.
Fig. 2. Section lower down, just grazing the under side of one optic nerve; the nucleogenous ruffle-
shaped bodies in front as well as on the sides; the Y-shaped bundle of nerves nearly merged with the rest of
the fibrous portion ; the groups of large ganglion-cells [Zgc] limited in extent.
Fig. 3. Section of portion of brain magnified 30 diameters showing the origin of left optic nerve; f,
bundle of nerve-fibres, without cells and nuclei; 24, a nerve of which an enlarged section is seen at fig.
3a, showing the nucleated fibres cut across; 77, a large bundle of nerve-fibres, of part of which, fig. 3, is an
enlarged view, showing the nucleated fibres in section, and seen longitudinally with a few nuclei visible ;
‘X 225 diameters; 3c, a group of large ganglion-cells, with branched nerve-fibres arising from them;
n, nucleus ; ne, nucleolus, magnified 225 diameters; 3d, a single large ganglion cell, giving origin to a branch-
ing nerve.
Fig. 4. Section of right side of brain passing through the ocellar nerve, 0 ¢ 2; ¢, commissure with large
ganglion-cells and fibres at this point, surrounded by a distinct neurilemma; a, artery passing down the
back of the brain. Magnified 30 diameters.
Fig. 5. Section of brain of Limulus through the ocellar nerve [o ec 7] and the two tegumental nerves
[tn]; ¢, section of lower part of commissure to oesophageal ring; fa+ the small area on the right side
composed of nerve-fibres, showing the asymmetry of the brain; magnified 30 diameters.
AND EMBRYOLOGY OF LIMULUS. 45
Fig. 6. Section of left side of brain of Limulus, below the ocellar nerve, passing through the lower set of
tegumental nerves. The fibrous area [ fa] much branched, and still much greater than on the right side
[fv]. A number of large ganglion cells are present at the posterior outer portion of the brain. Magnified
30 diameters.
Fig. 7. Section through left side of brain of Limulus, below any of the nerves, quite near the base of
the brain, and showing how much the nucleogenous bodies have encroached on the fibrous area [ f a].
Figs. 1 and 2, were cut from the same brain; figs. 3, 4, 5,6 and 7 from another brain; and were selected
from about ninety other sections.
Norr.—All the figures in plates 1-7 were drawn by the author, except plate 2, fig. 1, drawn by P. Roetter ;
and plate 1, fig. 1, and all the figures on plate 2 (except fig. 1), which were drawn by J. S.Kingsley. ~
ZooLoGicaAL LABORATORY OF Brown UNIVERSITY,
Providence, R. I., May, 1880.
ERRATA.
Page 10, line 30, for Arthopoda read Arthropoda.
Page 16, line 1 from bottom of footnote, for Tottennia read Tottenia.
Page 23, line 25, for (Fig. 9, rt) read (Fig. 9, rt ?).
Page 26, line 6 from bottom for “ or lens-epithelium ” read “lens-epithelium.”
Page 29, line 14, for analagous read analogous.
Page 29, line 37, after the word but dele that.
Annivers. Memoirs Boston Soc NatHist
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CONTRIBUTIONS
TO THE
ANATOMY OF THE MILK-WEED BUTTERFLY
DANAIS ARCHIPPUS (Fabdr.).
By EDWARD BURGESS,
SECRETARY OF THE BOSTON SOCIETY OF NATURAL HISTORY.
BOSTON:
PUBLISHED BY THE SOCIETY.
1880.
CoNTRIBUTIONS TO THE ANATOMY OF THE MILK-wEEeD Butrerriy (Danais Archippus
Fabr.). By Epwarp Burcess.
GENERAL students of comparative anatomy wishing to gain some knowledge of the
structure of the Lepidoptera find their way blocked by the lack of some suitable modern
monograph on any species of this group to which they may turn. I have, therefore,
attempted to fill this gap to some extent by a preliminary sketch of the anatomy of the
Milk-weed Butterfly (Danais Archippus Fabr.), choosing this species as a type of the
order, partly on account of its large size, common occurrence and wide distribution — for
it is found nearly the world over— and, partly, because the anatomy of no species of
Danaidae has yet been studied.
The present paper treats only of the general anatomy of the perfect insect, leaving the
consideration of the larval and pupal structure and development, as well as the histology,
to the future investigations of myself or others.
The special student, already acquainted with the present state of our knowledge of but-
terfly anatomy, will find new observations on the maxillae and suctorial mechanism of
these insects; on the course of the dorsal vessel; and on the structure and mechanism of
the male genital armature.
I. Structure OF THE EXOSKELETON.
Heap. (See pl. 1, figs. 1 and 5.) The roof of the head is formed by the epicranium,
which bears on its sides the large eyes, and, in front, the antennae. The posterior aspect
of the epicranium is called the occiput, while the front is the region immediately above
and between the antennae. The small triangular areas, on either side, and below the face
are the cheeks or genae (qg.). The face includes the region below the antennae, and is
formed chiefly by the large, vaulted clypeus (c.), whose arc-shaped lateral boundaries are
well-marked, while above it passes directly into the epicranium, without any suture or line
of demarcation as found in many insects. The compound eyes (oc.) are very large and
protruding ; the ring-like ridges on which they are borne are termed the orbits (or.). Sim-
ple eyes, or ocelli, are not found in the butterflies, although there are two in moths.
The antennae articulate with the epicranium by a “ ball and socket” jot; the ball
being formed by the large first and smaller second antennal joints (see fig. 3), is deeply
inserted in the antennal fossa or socket. The succeeding joints are cylindrical, and of
much less diameter than the ball; they are about forty-five in number, and of nearly uni-
form size till towards the tip, where the last ten gradually expand, becoming also shorter,
and form the * club.” which characterizes the antennae of the diurnal Lepidoptera.
4 BURGESS ON THE ANATOMY
To the slightly concave lower edge of the clypeus is soldered the upper lip, or labrum
(lb.), a small, flat triangular piece, with a somewhat projecting apex, which overlies the
base of the proboscis. On either side the labrum, and soldered to the cheeks, are seen.
two small triangular, almost thorn-like, pieces, the rudimentary mandibles (md.). They
are immovable and of course functionless ; their inner margin bears a row of stiff bristles.
Behind the mandibles are the mazillae (mz.), of compensatingly enormous development,
forming the tubular proboscis, used by the insect to suck up the honey or other vegetable
juices forming its food in the imago stage.
Each maxilla is a long, slender, flexible organ, tapering gently to the tip, and having a
deep groove along its inner surface, which surface being applied to that of the opposite
maxilla, and locked in that position by hooks provided for the purpose, a canal is formed
traversing the proboscis from base to tip. When not in use the proboscis is coiled into a
spiral like a watch spring, and lies under the head, protected on either side by the large
hairy labial palpi, which are specially developed for this service. In the Milk-weed But-
terfly the proboscis is about 15 mm. long, and at the base, about 0.6 mm. wide. The tip is
rather bluntly pointed. Superficially (pl. 2, fig. 8), the proboscis presents a sort of coat of
mail appearance from its composition of an immense number of rings, or rather segments
of rings, since a portion on the inner side is of course wanting. The separation of these
rings by intervening and more yielding spaces of cuticle, is evidently to permit the spiral
coiling of the proboscis, while imparting at the same time the necessary stiffness. The.
rings are not perfectly regular, but are here and there broken, or branch and anastomose.
They are themselves made up of quadrangular plates jomed side to side, except near the
inner edges of the maxillae, where, especially in front, they become separated, more or less
hexagonal and irregularly scattered ; on the hinder side each plate sends off a stout, spine-
like process, which is directed inwards (see fig. 10). These plates, as will be seen in seec-
tions of the proboscis (figs. 9, 10 and 11), are the bases of little pyramids, or in some
regions, stout nail-shaped bodies imbedded in the cuticle, each one in its own prismatic
block of cuticle, which probably corresponds to a single underlying hypodermic cell, its
matrix. The blocks may occasionally be demonstrated by the separation of one of them
from its neighbor in the process of section cutting, (fig. lle). The dividing boundary line
between the blocks can also generally be seen in successful sections (see figs. lla, 6 and ¢;
cu. cuticle, and hy. hypoderm). The cuticular lamination too is evident in such sections.
The pyramids are opaque, black, or dark brown, and the rest of the blocks colorless and
transparent.
Dotted over the surface of the proboscis but more thickly toward the tip are little cir-
cular plates with a minute papilla in the centre (see fig. 8). These are regarded as modi-
fied hair structures, and in many butterflies are curiously and greatly developed,! forming
toothed or notched spines, believed by Breitenbach to serve as the teeth of a saw or file,
enabling the insect to work the proboscis through plant tissues in search of the contained
juices. These organs are reénforced in the case of the Orange moth ( Ophideres fullonica),
by large spines developed from those which serve simply to lock the maxilla together in
1See Breitenbach, Katter’s Entomol. Nachr. v, 238; Report on Cotton Insects, U. S. Agric. Dept. 1879, p. 86
Arch. Mikr. Anat., xv, 8 and xvi, 308. Also F. Darwin, (proboscis of Aletia).
Quart. Journ. Mier. Sci., xv, 385, and F. J. Comstock’s
OF THE MILK-WEED BUTTERFLY. 5
other Lepidoptera. They are too small for mechanical use in Archippus, and perhaps the
papillae are, in this case, organs of taste or touch, as suggested by Fritz Miiller, which
appears more likely from the fact that they occur, though in much less number, within the
central canal of the proboscis. This canal is not lined with rows of little blocks like the
exterior, but with the much narrower solid edges of semiannular plates, which give the
canal the appearance of a large trachea (fig. 9). In transverse sections it is seen (fig. 10)
that the ends of these semiannular plates form behind hooked teeth, which are snugly
dove-tailed together, while their anterior ends are produced into long spines which
simply interlock like the fingers of the two hands. These arrangements serve to hold the
two maxillae together to form a continuous tube.
Each maxilla is traversed through its whole length by a nerve and a trachea (figs. 9
and 10, 2. and ¢r.), both giving off numerous lateral branchlets to the muscles which fill the
rest of the interior of these organs. The muscles form narrow bands and are arranged in
two sets, both running from the anterior to the posterior aspect, and descending in this
course. One set, however, is inserted on the outer side of the anterior face, while the
other is inserted on the inner, and both converge in their downward and backward course,
and thus, when seen through the wall of the maxilla from the front, they form a series of
Vs one above the other. Seen laterally, only one set is visible at a time, diagonally cross-
ing the maxilla, as shown in the section (pl. 2, fig. 9). From the attachment of these mus-
cles, their apparent action is to shorten the posterior wall of the maxilla, which of course
must produce the spiral coiling of the organ. This unfortunately, leaves the explanation
of its extension in the dark, unless we suppose elasticity, or possibly the injection of the
somatic fluids, to bring this about. Many authors have assumed that the proboscis was
coiled by its elasticity, but if we admit the possibility of such action at all, we can as
easily require it to account for extension as for flexion. It seems more probable, however,
that we fail to see, or to correctly interpret, some proper muscular mechanism for both
movements of the proboscis."
Maxillary palpi are often well developed in Lepidoptera, though in some they are
wanting, or at least reduced to a little wart on the base of each maxilla (fig. 3, ma.p.).
The labial palpi are, as already said, very large, and conceal the proboscis in repose
The first jomt is short, stout, rather pedicellated, and is curved upwards ; the second is
long, tapering somewhat from the base to the tip; and the last joint is small and pointed.
THorax. A slender neck well separates the head from the thorax, whose first somite, or
prothorax, (fig. 1, 1.), is very small and feebly developed, and the homologies of its skele-
tal parts are not easy to recognize. The scutwm (fig. 1, s.") is divided by a median furrow
into two tumid, bolster-like pieces (called by Mr. Scudder the pro-thoracié lobes), entirely
separated from each other. Behind them is a small triangular plate, representing the
scutellum ; and behind this are two rounded and knob-like processes which form an articu-
lar surface resting in a corresponding depression in the mesothorax. These probably rep-
1T have found few references to the myology of the lepi- See also his article in Todd’s Cycl. Anat. 11; and Gersteldt.
dopterous proboscis; the most extensive is that of Newport, Ueber die Mundtheile der saugenden Insecten, Dissert.
Nery. System of Sphinx ligustri, Phil. Trans., 1834, p. 398, inaug. Dorpat, 8°. 1853.
whose whole conception, however, seems to me erroneous.
6 BURGESS ON THE ANATOMY
resent the post-scutellum. A continuous ossified collar encircles the prothorax beneath,
composed of the episternal and sternal elements fused into one piece. Behind and beneath
this collar are attached the long cylindrical coxae of the first pair of legs. Epimera are
not recognizable.
A broad membranous neck separarates the prothorax posteriorly from the mesothorax
(u.). The scutum (s.?) in this segment is very large, oblong, and vaulted. In front there
is a rather deep pentagonal depressed area, with a rounded central portion, fitting against
the articular surface between the meso- and pro-thorax, as already described. This area is
perhaps the praescutwm, and is, as it were, wedged into the scutum. Just below the ante-
rior corners of the scutum are attached, by a small stalk, two leaf-like epaulets, the pata-
gia’ (pt.). These are nearly semicircular in shape, with a conical piece projecting back-
ward from the lower corner. The great development of the patagia is characteristic
of the Lepidoptera. Behind the scutum, which is slightly emarginated posteriorly, is
the lozenge shaped, tumid scutellwm (sm.?), whose lateral corners project under the base of
the scutum. A narrow membranous area separates the scutellum from the post-scutellum
(psm."), which is an arch shaped piece mostly concealed by the postthorax ; it sends a
long process forward on each side under the scutum and reaching the epimera, while
behind it extends into the interior of the thorax for the attachment of the great thoracic
muscles (see fig. 2, /.m.). The episternum (eps.”) is triangular, with two sides convex, its
base resting on the stermwm (st.*), which is an irrregularly six-sided, transverse piece coy-
ering the chest. The sides of the prothorax behind the episterna are formed by the
epimera (epm.”) shaped something like an hour-glass in outline, beg emarginated deeply
above for the sub-alar membrane, and, beneath for the cowae (cx.”) of the second pair of
legs, which are immovably united with the epimera and sternum.
The scutum (sm.°) of the meta-thorax (111.) is divided into two lateral triangular wedges
somewhat like the prothoracic lobes, between which in front the scutellum and postscutel-
lum of the mesothorax are wedged, and behind the triangular seutellwm of its own seg-
ment (sm.*). The episterna (eps.*) and the sternum show no dividing suture, and embrace
the base of the coxae above and in front; while, in similar fashion, the epimera (epm.*)
send projections backwards above and behind. The shape will be better understood from
the figures, than from any description.
The roots of wings (w.! and w.? ) are inserted in broad, membranous areas occupying the
sides of the meso- and meta-thorax above the epimera and below the scuta of those seg-
ments. The hinder pair of wings in the male are distinguished by a sort of pocket, on
the upper side, forming a small blister on the rib, known as the first branch of the median
vein, opening by a narrow slit and containing scales and hairs.”
The legs show the usual five divisions into the coxa, trochanter, femur, tibia and tar-
sus. The first pair, however, are much smaller, and, indeed, functionless, as in all the
higher butterflies. They also are different in the two sexes; the tarsi of the males are
1 Westwood, Newport and other authors have erroneously — eral good sections of scales were made, showing their upper-
described the patagia as attached to the prothorax, and this and lower membrane, the former bearing the rib-like mark-
is accordingly often repeated in our text books. Packard, ings. Fig. 6 on pl. 1 shows two of these sections —fig. 6
Guide to the Study of Insects, gives the correct statement. through the middle of the scale, and 6, a, lower down, pass-
*In making sections through the wings at this point, sev- ing through the pedicel.
OF THE MILK-WEED BUTTERFLY.
~I
(rather indistinctly) two-jomted, the second joint bemg very small; while in the females
there are four tarsal joints, the first quite large, much stouter at the apex, the next two
very short, and the fourth or last very minute and indistinct. The first three joints in the
female have each two spurs on their inner extremity. The fore tarsi are clawless in both
sexes.
The middle and hind pairs of legs are alike except for the somewhat larger size of the
former. The coxal joints are conical, immovably united to the thorax. They are
divided into two parts, the coxa and trochantine. ‘The tarsi are five-jointed, all very spiny
beneath. The last joint has two long and rather straight claws.
AsBpoMEN. Nine somites (fig. 1, numbered 1 to 9) are evident in the abdomen of the
Lepidoptera. The first is small, forming a sort ‘of neck which is wider than high; the
dorsum is developed into a large bolster, shield-shaped from above, and somewhat over-
hanging the base of the second somite. The pleural region presents rather complicated
folds, and there is no sternal ossification, leaving a broad membranous surface between the
thorax and the sternum of the second abdominal somite. The next three somites increase
gradually in height, but each is somewhat shorter than its predecessor. The sternal and
dorsal regions are of about equal development. The second sternum shows underneath
two shallow furrows, in which the knees of the last pair of legs seem to fit. The fifth
and sixth somites decrease gradually in size. The last three somites require a different
description for the two sexes. In the female the dorsum of the seventh somite is longer
than the preceding, and the sternum is produced backwards to a point, and its posterior
border emarginated. The eighth tergum is shorter than the seventh, and the whole som-
ite much less high ; its flat sternum looks forward, opposing the hollow posterior aspect of
the seventh ; thus forming with the latter a wide, cave-like vestibule, in which the orifice
of the vagina is situated. The ninth, and last, somite is very small, and in repose, almost
wholly retracted within the eighth. Inferiorly and laterally it is produced into two bluntly
triangular lobes, or flaps, between which lie the openings of the digestive and reproduc-
tive organs. The ninth sternum is reduced to a simple ring, connecting these flaps infe-
riorly.
In the male the seventh somite is simply smaller than the preceding. The eighth,
however, is remarkably developed, for its sternum is produced laterally far beyond the
tergum forming two false clasps wrth bifid tips, the inferior tooth being the stouter, and
both teeth strongly incurved. The ninth segment resembles that of the female, except in
being somewhat larger. To its sternum, however, are articulated the true male claspers,
to be described farther on, and between these projects the penis. The anus lies within
the flaps above the sexual organs as in the female.
Il. Inrernat ANATomy.
From this brief description of the exoskeleton we may pass to the internal anatomy of
our butterfly. To best study it, the msects should be hardened for a few days in alcohol,
made gradually stronger, and then some specimens should be cut with a razor into longi-
tudinal halves, which will show the natural position of the internal organs. It is well to draw
the razor slightly on one side of the median line, as in this way the first part of the diges-
tive tract, the nerve chain and the dorsal vessel are left intact. Some preparations should
BURGESS ON THE ANATOMY
oe)
also be made by merely cutting through the integument near the median line with a
razor, and in places, with a fine pair of scissors, and then gently tearing it away
on one side, thus leaving the principal organs perfectly uninjured, and in their natural
position. By carefully removing the fat body and the tracheae they will, one by one,
gradually become evident.!. A preparation thus made is figured on pl. 1, fig. 2. Of.
course one single dissection will not show every point, as some organs must be removed
in order to get at others beneath them ; thus in fig. 2, all the tracheae, one set of ovaries,
the urimary tubes, etc., have been dissected out. It is therefore well to make several dis-
sections, each having in view one or two organs more particularly, and the study of the
separate preparations will give the knowledge of the whole internal anatomy. Besides
these preparations, many sections, some coarse, and some thin, must be made, (as de-
scribed in text-books of histology and microscopic technique), and mounted for study with
the compound microscope. Many points in the anatomy of small parts of the body, and
of course the histology in general, are only to be learned from such preparations.
Tue ALIMENTARY CanaL AND rs AppENDAGES. The canal traversing the proboscis
opens into a pharynx enclosed in a muscular sac, which occupies much of the lower
part of the head. The sac itself is nearly round, and is hung in position by five principal
muscles, (figs. 4, 5 and 7), two dorsal (d.m.), two lateral (/.m.), and a frontal ( fm.) which
is really a pair of muscles closely united. A more feeble muscle is also inserted on the
lower aspect of the sac. The sac itself is very muscular, and shows two principal layers
of muscles, an outer, of longitudinal annular fibres, and an inner, of transverse fibres.
The pharyngeal cavity extends obliquely upward in the sac, from front to back, and is
much broader than high. The floor, or hypopharynz, is convex on each side of a median
furrow, (fig. 5, kph.) and somewhat resembles in shape the human breast. The convex areas
are dotted over with little papillae, which possibly may be taste organs, although I have not
succeeded in making out any nervous supply. The cuticular layer of the hypopharynx is
very thick, while that lining the superior wall of the pharynx is, on the contrary, delicate,
and is thrown into slight transverse ridges. The suspensory muscles of the pharyngeal
sac pierce the muscular layer of the latter, and are attached to its internal wall. At the
anterior border of the pharynx is a triangular muscular flap, the epipharyna (fig. 5, ep.)
overlying the opening into the proboscis, and serving as a valve to close the latter.
The pharyngeal sac, as is evident from its structure, serves as a pumping organ to suck
the liquid food of the animal through the proboscis, and force it backwards into the
digestive canal, the process being as follows: The proboscis is unrolled and inserted
in the nectary of a flower; at this moment the muscles which suspend the pharynx
contract, and its cavity is thus extended, creating a vacuum which must be supplied by
a flow of honey through the proboscis, into the pharynx. When the latter is full its
muscles contract, the valve closes the aperture to the proboscis, and the honey is forced
backward into the oesophagus. The pharynx is then again opened and the same process
repeated. To prevent the food being sucked back from the oesophagus, it is probable
that some of the numerous fibres in the muscular sac near the origin of the former can,
by contraction, close its opening, but in any case as the proboscis presents a free tube, and
1 This work should, of course, be done under water, the small glass dish.
preparation being pinned to the wax-covered bottom of a
OF THE MILK-WEED BUTTERFLY. 9
the oesophagus leads into the closed alimentary canal, it is evident that the former offers
the easiest route for a supply to fill the vacuum produced in the pharynx.
The organ just described has hitherto escaped the notice of insect anatomists, and its
functions have therefore been conjecturally ascribed to other parts. The so-called “ suck-
ing stomach” thus received its name from the earlier writers, and when its structure was
better known, and such a purpose negatived, the capillarity of the fine canal of the pro-
boscis, and even a peristaltic action of the latter have been suggested to explain the
power possessed by the butterfly to suck up its food.?
At the upper extremity of the pharynx opens the narrow oesophagus and at the lower
edge of the hypopharynx the common duct of the salivary glands discharges into the
canal of the proboscis at its base. These glands consist of two tubes arising in the base
of the abdomen, and passing, with many convolutions, on either side of the oesophagus, into
the head. The glandular portion (fig. 2, s. gl.) of these tubes is about 40 mm. long, and the
more slender anterior and non-glandular portion, or duct, (s.d.) about 12 mm. The two
ducts unite into one in the base of the head; the common duct, as just said, opening
below the hypopharynx.
The oesophagus (oe.) is a slender and delicate tube leading from the pharynx above, and
after piercing the nerve commissure between the brain and the succeeding ganglion,
passes straight through the thorax into the abdomen, in the very base of which it opens,
above, into the food-reservoir, and below, and a little farther back, into the stomach.
The food-reservoir, (f.r.) or so-called sucking stomach, is a large, bladder-like sac, occu-
pying the upper part of the anterior half of the abdomen. Its walls are delicately mem-
branous, well supplied with longitudinal and transverse slender muscular fibres, particularly
the former. Clothing the upper surface of the interior, more thickly in the median line,
are long hair-like processes of the cuticle (pl. 2, fig. 12), whose points are directed for-
ward, that is towards the neck of the reservoir. These processes have broad corrugated
bases and end in long slender tips, appearing therefore, as if formed by being pulled out of
the membrane they cover, or as if each were a bunch of hairs clotted together at the tip.
Their use is not obvious. The food-reservoir is generally found to contain nothing but air ;
but Newport states that it is filled with food after feeding, and as it is not glandular, it
probably serves simply as a reservoir for the temporary reception of food. The neck of
the reservoir is large, and by the contraction or extension of its muscular fibres, it is evi-
dent that food may be easily expelled from, or drawn into, its interior.
Below and just behind the neck of the food-reservoir, the oesophagus opens into the
stomach (st.), a straight tube running along the ventral region of the abdomen from the
base of the second, into the fifth segment. Its walls are thick and composed of muscular
and glandular layers. The stomach is overlaid with the convolutions of the urinary, or
Malpighian, vessels, (see fig. 2, m.v.) six in number, three of which on either side unite
and open by a short common duct into the posterior end of the stomach. The urinary
tubes are about 90 mm. long. At the end of the stomach begins the small intestine,
1¥For the previous literature of the mouth parts in Lepi- Kirby and Spence, ete.
doptera, see Gerstfeldt, loc. cit.; Milne Edwards, Physiol- Compare also the structure of the pharynx in Diptera and
ogie; Newport, Phil.Trans., 1834, p. 397; Savigny, Mémoires Hemiptera as described by Graber, Insecten 1, 316, and
sur les Animaux sans Vert.,1; Graber, Insecten, 1, 154; Amtl. Ber. Vers. deutsch. Naturforschersamml. Miinchen,
and the general works of Westwood, Burmeister, Siebold, 1877, p. 187.
10 BURGESS ON THE ANATOMY
(ilewm, i.), a tube about one-quarter of the diameter of the former, running first backwards,
then upwards and forwards, then turning backwards again, thus making a flattened S-
curve in the fifth and sixth segments. The intestine in this course passes to the left of
the bursa copulatrix of the female, and of the testis and penis in the male (see figs. 2 and
14, 7). The intestine passes, in the dorsal region of the sixth segment, into the colon, or
large intestine (c.), which in some Lepidoptera is expanded anteriorly into a large coecal
sac. In the milk-weed butterfly the colon is somewhat pyriform in the female (fig. 2, ¢.),
but is longer and more cylindrical in the male (fig. 14, ¢.). It is dotted over with numer-
ous little glands of doubtful function.t The colon narrows posteriorly and is followed by a
short cylindrical division, the rectum (r.). The anus (a.) opens between the triangular lap-
pets of the ninth segment.
Tur Harman System. The heart (h.) is a small tube lying immediately under the dor-
sal wall of the abdomen, and hung in this position by triangular muscular sheets (the
alary muscles), which are placed in pairs, apices inwards, on either side of the heart. The
walls of the heart contain two sets of muscular fibres running spirally in opposite direc-
tions. Slight constrictions divide the heart into a number of segments, corresponding to
those of the abdomen. Each segment has probably a pair of clefts for the entrance of the
blood, but I have not succeeded in clearly making out their exact number.
In the basal segment of the abdomen, the heart narrows slightly, making the begin-
ning of the aorta (ao.). This after entering the thorax runs upwards, passing between
the right and left sets of thoracic muscles, and then under the suture between the mesoscu-
tum and scutellum, and expands rather suddenly into a large chamber (ao.c.), which is
hung in position by a net-work of fibrous connective tissue. This aortal chamber is some-
what pear-shaped, with the greater diameter posterior. The forward end bends downwards
and again contracts into a slender tube, which runs backwards and downward until it
reaches the first part of the aorta, and after passing along the anterior face of this for a
short distance, it bends suddenly forward and runs along, and just above, the oesophagus,
passing with the latter into the head and through the oesophageal nerve collar. The
aorta then seems to bend upwards, but I have not attempted to trace it beyond this point.*
The aortal walls, including those of the chamber, are provided with muscular fibres in
spiral layers, as in the heart.
The aorta is very readily demonstrated throughout its whole course, and the chamber
forms a conspicuous object in a good longitudinal section ; it is therefore very remarkable
that its peculiar character * should have hitherto escaped the notice of anatomists. New-
port’s figure of Sphina ligustri’ represents the aorta distinctly following the curve of the
1 For the structure of these glands, see Chun, Abhandl. d.
Senckenb. Naturforsch. Gesellsch. Bd. x.
cacy. Anterior to these trunks are two smaller ones, which
appear to be joined to the parts of the mouth and antennae,
2 Newport (Cycl. Anat. and Phys. 11, 977) states that there
are eight pairs of openings in Sphing ligustri.
8 Newport (Cycl. Anat. and Phys., 1, 978) says of Sp.
ligustri and Vanessa urticae ‘‘the aorta after passing beneath
the cerebrum gives off laterally two large trunks, which are
each equal in capacity to about one-third of the main vessel.
These pass one on each side of the head, and are divided
into three branches, which are directed baekward, but have
not been traced farther in consequence of their extreme deli-
and nearer the median line are two others which are contin-
uations of the aorta. These pass upwards and are lost in
the integuments.”
4No other case in which any portion of the aorta runs
backwards has been described among insects, nor in which it
dilates into a chamber. Cornalia (Monografia del Bombix
del Gelso. Mem. Ist. Lomb., vz. 4°. Milano, 1856) figures
a slight dilatation, but no recurving, in Bombyx mort.
5 Phil. Trans. 1834, pl. xiv.
OF THE MILK-WEED BUTTERFLY. il
thorax, and with no chamber: and hence at first I thought that the features presented by
Archippus were peculiar to its family, or perhaps to the butterflies. I have, however, since
dissected Vanassa Huntera,' a sphingid and a noctuid, and found the same conditions as in
the Milkweed Butterfly, so it is probable they are characteristic of the Lepidoptera, as one
would indeed expect from the general uniformity in the anatomy of the group. How
Newport in his minute and numberless dissections could have overlooked so striking a fea-
ture remains inexplicable, unless we presume that his figure represents what he took
for granted to be the case rather than what he saw. The pulsating ventral blood sinus
I have not studied in Archippus.
Nervous System. Newport’s beautiful monograph’ of the nervous system in Sphinx
ligustri renders anything more than a brief description of its main features, as shown in
fiz. 2, unnecessary. The brain (br.) immediately overlies the oesophagus, occupying nearly
the centre of the head and giving rise to the optic and antennal nerves. The commissures
between it and the next or suboesophageal ganglion, forming the oesophageal nerve-collar,
are short and stout. From the latter ganglion arise the nerves of the mouth organs. The
thorax contains only two ganglia in the perfect insect, two of the original three thoracic
gangha having been fused into one during pupation. ‘The first of them, that is the second
post-oral ganglion, is the smaller, and nearly round, the next being double its length and
oval. ‘The important nerves arising in the thorax are those of the leg pairs, and those of
the wings. ‘The latter arise from the nerve cord between the two ganglia.
The second to the sixth abdominal segments each contain a ganglion; these gradually
increase in size to the last, which is compound and of considerable size.
The stomato-gastric nerves are not shown in the figure owing to their small size and dif-
ficulty of representation. A small ganglion, the frontal ganglion, les in front of and
below the brain hemispheres, with which it is connected by a recurved cord on either side.
Posteriorly it gives off a single median cord, the nervus recurrens, which passes back-
ward over the oesophagus and through the oesophageal nerve-collar. A pair of ganglia
also lie behind the brain hemispheres, connected with the nervus recurrens. The latter
runs backward over the oesophagus, innervating it and the dorsal vessel. On reaching the
stomach it divides into three branches, which run over and either side of this organ.
Branchlets are also given off to the food-reservoir.
FEMALE OrGANS oF Repropuction. The external opening of the oviduct (0.0.) is sit-
uated immediately below the anus and hardly separated from it, between the lappets of
the ninth segment. It leads into a short oviduct, which near the middle of the seventh
segment divides into two lateral branches, each of which is about as long as the common
duct, and each in turn gives rise to the four branches forming the ovaries. These ovarian
tubes from their union in the sixth segment run forward almost to the third segment, just
above the stomach ; they then curve upward and run backwards to the end of the sixth,
again curve upwards and pass forward into the fourth segment, when their slender tips
become solid cords, gradually unite together, and become attached to the dorsal wall of
1Mr. Scudder informs me that in dissections of chrysalids of D. ago, he observed and noted these peculiarities of the aorta.
Archippus, Vanessa Io and other butterflies, made some years 2 Phil. Trans. 1834.
12 BURGESS ON THE ANATOMY
the segment. This is the course of the ovarian tubes before sexual maturity. Each tube
contains a line of eggs diminishing in size from base to tip, in corresponding degrees
of development. As the eggs increase in size, the tubes become more or less spirally
coiled, and fill a large portion of the abdomen.
In the roof of the large vestibule on the ventral surface of the abdomen between the
seventh and eighth segment, already described above, is the opening of the vagina. The
vagina (v.) is a curved canal, with horny walls, which opens into a large and very mus-
cular organ, the copulatory pouch. This pouch is oblong oval in shape, with a shallow
constriction about the middle, the greatest diameter being posterior to the constriction.
The walls are very thick and muscular, and the lining of the internal cavity is covered
with conical teeth above, and is elsewhere thrown into numerous longitudinal folds or
ridges.
On the upper side of the pouch, and just beyond its beginning, is a small tube opening
into it. After two or three convolutions this tube passes a into the oviduct some distance
below its fork ; it expands near the middle into a pear-shaped chamber,— the sperm reser-
voir or spermatheca (sp.).
Besides these organs are alsoa pair of tubular glands, and a single one which discharge
into the viaduct, behind the orifice of the sperm duct. They are known as the accessory,
or colleterial glands. Each of the paired glands has a curious, twisted, somewhat cornu-
copia-shaped dilatation near its orifice; each gland is about twenty-five mm. long. The
single gland is nearly twice as long as the others, and has a corrugated external surface.
The three glands lie in coils over the other organs in the seventh and eighth segments.
Their function is supposed to be connected with the formation of the egg shell.
MALE OrGANS oF Repropuction. The internal male organs are very simple in the
Lepidoptera; they consist (see pl. 2, fig. 17, natural size), of a single large, globular testis,
(¢), formed by the consolidation of the two kidney-shaped testes of the larva; of two
efferent ducts (vasa deferentia), v.d.,into each of which, shortly before their union into the
ductus ejaculatorius (d.e.), a single gland (g/.) opens.
The compound testis lies in the fifth somite, immediately behind the food-reservoir;
the intestine passes to the left of it and its ducts, ete., corresponding to the position of
the former in the female. It is supported by the tracheae arising from the fifth abdominal
spiracles, five branches from which extend to the testis on either side, and on reaching it
divide into innumerable minute branchlets, which spread over its surface (see fig. 18).
The diameter of the testis is nearly 3mm. The efferent ducts arise close together on the
posterior face of the testis. They are about 30 mm. long, and 0.15 mm. in diameter, to
their junction with the glands. As shown in fig. 17, the ducts seem to lead into the
glands, and the basal ends of the latter then continue to the point of union into the ductus
gaculatorius. The glands are tubes about 40 mm. long, and have an average diameter of
0.5 mm.; they are somewhat larger at the tip. The portion of the duct between the glands
and the ductus ejaculatorius is 10 mm. in length, of the same diameter as the glands, but
tapering gradually to the point of junction. The ductus ejaculatorius is about 120 mm.
long, and slightly stouter than the first division of the efferent ducts. It ends in a bulb-
like expansion (p.b.) at the base of the penis.
OF THE MILK-WEED BUTTERFLY. 13
This latter organ is a dark, horny, slightly curved tube, about 6 mm. in length. The
tip expands into a small trumpet shaped mouth, which is twisted more or less asymmetri-
cally. At rest, the tip lies between, and a little beyond the triangular flaps of the anal
somite, just below the anus, and is inclosed in a membranous sheath (p.s.), to permit of
its protrusion beyond the body. This protrusion is worked by two extensor muscles (e.p.),
one on each side, whose attachments and mode of action will become sufficiently evident
by the inspection of fig. 16.
The ventral arch of the ninth somite sends a process into the abdomen immediately
underneath the penis, for the support of the latter, and the attachment of a large band of
muscular fibres (7.p.) which embraces the penis, holds it in place, and accomplishes its re-
traction.
Tue ExTEerNAL Mate ARMATURE IN THE LepipopTERA. The secondary male organs
of the Lepidoptera are constructed on a simple plan, which is modified after various
fashions in the different groups, and these modifications are often serviceable as characters
of classificatory importance.
Their typical structure is well illustrated by the Satyrid but-
terflies, (see the adjoining figure), in which the dorsum of the
anal or ninth abdominal segment is produced into a simple term-
inal hook directed downwards, recalling the telson of Crusta-
cea. The sternum of the same somite is reduced to a narrow,
U-shaped piece, which may be called the ventral arch. To this
ventral arch are articulated two, more or less pincer-like, clasp- Pir ay aa, Sate
ing organs, termed simply “ claspers.” As already stated, the — rus alope, male; d, dorsum, and
. 2 el : : v. a., ventral arch of ninth som-
anus lies just beneath the hook, and the penis projects below j,.7 5, ones Ge eet Ga
the anus. Anal cerci are never present in the Lepidoptera. and left claspers.
Remarkably enough, the eighth abdominal somite sometimes closely imitates the
ninth. For instance in the yellow butterflies (Pierids), its dorsum is produced into a hook
exactly like that of the ninth segment; while on the other hand in the subject of this
paper, the posterior border of the sternum is extended into two false claspers (figs. 13, 14,
etc., f.c.) in close imitation of the genuine organs, except that they are not articulated.1
The terminal hook is often bifid, sometimes very long, or at others curiously armed
with spines, etc. The clasps are equally various in shape, and armature, and in Nison-
iades* very remarkable for their asymmetrical development.
ExternaL Marz Armature in Arcuippus. In the Milk-weed Butterfly, the hook is
entirely obsolete, but the dorsum of the ninth somite projects into two rather triangular
lateral flaps, just as in the female, except that they are longer and slenderer. Between
the flaps the segment is emarginated above. The ventral arch (see fig. 15, at the numeral
9) is wider than usual, and sends a stout cylindrical process (pr.) into the abdomen, for the
support of the penis and the attachment of its retractor muscle as already described.
1 The real claspers are, presumably, true arthropodan ap- _ claspers, and yet not homologous with true abdominal ap-
pendages, but the existence of the false claspers suggests a pendages.
mere possibility of independent development. For if a ?See Scudder and Burgess, Proc. Bost. Soc. Nat. Hist.,
joint could arise between the false clasp and its segment, we x11, 282.
should have organs indistinguishable from the ordinary
14 BURGESS ON THE ANATOMY
The claspers are articulated to the ventral arch on either side and above the process.
In profile, the clasper shows a rather large rectangular body, with a small triangular pro-
jection from its posterior edge above; while lower down there is an inwardly curved stout
and hard process, which is continuous with a stout rib on the internal surface of the
clasper. The lower edge of the clasper is tumid, and in thickness the clasper is here over
a third of its width. The upper edge is on the contrary only a thin plate. The concave
side of the process is turned outwards (see fig. 16), and at its tip, which is black and hard,
is a transverse series of file-like ridges, while the inner surface of the process is smooth.
Powerful muscles lie in the interior and are attached to the ventral arch. The muscular
connection between the latter and the preceding segment is also powerful. From its struc-
ture it seems as if the claspers were probably inserted within the copulatory vestibule of
the female, and then pressed outward against the walls of the latter, the two sexes being
held in this way instead of by the ordinary pincer-like action of the claspers in most insects.
Yet another apparatus distinguishes the male Danaids among butterflies. A brush or
pencil of long delicate hairs lies on either side between the eighth segment and the upper
portion of the clasper, piercing the membrane between the eighth and ninth segments.
These hairs are attached to the bottom of a sac-like sheath (see figs. 14-16 h. s.), which
can be everted at will, as the drawn in finger of a glove may be extended by blowing into
the interior, thus projecting the hair pencil out beyond the tip of the abdomen. A muscle
(7. m.) is attached to the bottom of the sheath and runs downward to the anterior ventral
edge of the seventh segment; this muscle retracts the pencil into its quiescent position.
The uses of this apparatus are unknown ; a somewhat similar one has been noticed in some
other Lepidoptera, but needs anatomical study.
The false claspers, though immovable, have a greater resemblance to the ordinary form of
genuine claspers, than do the latter themselves in Archippus. They are formed by the
production of the lateral edges of the sternum of the eighth segment. In shape they are
oblong and the posterior edge is emarginate, leaving at the corners two processes or teeth
of considerable size, the upper of which is rectangular and the lower rather triangular.
Both are strongly incurved. The sternum between and below the false claspers is deeply
emarginated and its edge carries out the regular sweep of the lower edge of the false
claspers. The edge is rendered stiff by its shape, which in section is much like that of a
T-rail of a, railroad.
REsPIRATORY APPARATUS. The air tubes, or tracheae, present no peculiar features in the
Lepidoptera. The very short main trunk into which the stigmata open soon divides into
branches which run to the special organ to be aerated and there often branch abruptly
into a great number of fine tubes, as shown in the tracheae of the testis (fig. 18). Air sacs
such as are found in the Orthoptera, ete., do not occur. The stigmata of the first pair lie
in the sides of the prothorax behind the prothoracic lobes. Succeeding pairs of stigmata
are situated in the pleurae of the first seven abdominal somites, the pair in the first seg-
ment being rather hard to find owing to the folds in the integument of its sides.
OF THE MILK-WEED BUTTERFLY. 15
EXPLANATION OF THE PLATES.
Pruate 1,
Fig. 1. Lateral view of Danais Archippus, female, <6.
Heap. a@., Antenna; 9., Occiput; cl., Clypeus; ma., Proboscis ; p., Labial palp.
Tuorax. I, Pro-, II, meso-, III, meta-thoracic somites. s., scutum; sm., scutellum; psm., post scutel-
lum; epm., epimerum ; eps., episternum; cw., coxa; é7., trochanter ; 7, femur; these parts are marked 4,2, or 3,
as they belong to the pro-, meso-, or metathorax, respectively. Sp.1, first spiracle; 2.1 and w.’, fore and hind
wings.
AxspoMEN. 1 to 9, the nine somites of the abdomen; sp.’, sp.*, second and seventh abdominal spiracles
i.é., the spiracles of the third and eighth pair. X6.
In this figure the membranous portions of the integument are dotted.
Fig. 2. Lateral interior view (6), showing the internal organs in their natural relations, after the removal
of the right half of the integument, together with the tracheae, and fat-body. 1 to mm, somites of the
thorax; 1 to 9, of the abdomen.
ALIMENTARY CANAL AND APPENDAGES. ph., pharynx; s.d., and s.gl., salivary duct and gland of the
right side; oe., oesophagus; f7., food reservoir; st, stomach; 7., small intestine; c., colon; 7., rectum; a.,
anus; m.v., malpighian vessels.
Harman System. h., heart or dorsal vessel; ao., aorta; a.c., aortal chamber.
Nervous Sysrem. (Dotted in the figure), 6r., brain; g.', sub-oesophageal ganglion; tg., compound
thoracic gangla; a.g.1, a.g.4, first and fourth abdominal ganglia.
Femate RepropuctivE OrGans. c¢p., copulatory pouch; v., vagina; o., oviduct, and o0.0., its external
opening; 7.0v., base of the right ovarian tubes turned down to expose the underlying organs; Z.ov., left ovarian
tubes in position, and ov.c., their termination in four cords; sp., spermatheca; @.g/.1, part of the single acces-
sory gland; a.gi.”, one of the paired accessory glands; only the base of its mate is shown. Other letters as
in fig. 1.
Fig. 3. Front view of head, X10. oc. compound eyes; @, antennae; cl., clypeus; 7b., labrum ; md., man-
dibles; ma., base of proboscis; ma.p., tubercle representing maxillary palp; s.g., cheek; or., orbit.
Fig. 4. Interior view of the bottom of the head, the top having been cut away, showing in the middle the
pharyngeal sac with its five muscles — the frontal, fm., the dorsal pair, dm., and the lateral pair, m.; el., cly-
peus; cor., cornea of the compound eye (the left eye is not drawn); oe., oesophagus; pm., one of the large
muscles which move the labial palp.
Fig. 5. Horizontal section of head through the pharyngeal sac. ph., pharynx ; Aph., hypopharynx, show-
ing the papillae dotted over it; fm., frontal muscle; m., labial palp muscles; s.d., salivary duct.
Fig. 6. A section through a bit of wing and a scale; and fig. 6a, the same, the section passing through a
seale pedicel; ew., cw.', the upper and lower cuticular membranes of the wing. With 5 inch objective.
PratE 2.
Fig. 7. Longitudinal section through the head giving a view of the interior of the left half; mza., the left
maxilla whose canal leads into the pharynx; /ph., floor of the latter showing some of the papillae of taste;
oe., oesophagus; c/., clypeus; ep.v., epipharyngeal valve; s.d., salivary duct; dm. and fm., one of the dorsal
and the frontal muscles which hold the pharyngeal sac in its position.
Fig. 8. Tip of the proboscis showing the arrangement of the cuticular rings and blocks, with the
interspersed papillae. With } inch objective.
Fig. 9. Longitudinal section of proboscis; the canal, ¢., is shown above; lower down the trachea, ¢., and
the nerve, n.; while the diagonal muscles, m., overlie them. These are spaced somewhat wider than in na-
ture, for the sake of clearness. The right edge is the outer one. } inch objective.
Fig. 10. ‘Transverse section of proboscis, showing the two maxillae united by the dove-tail joint, and
forming the interior canal, c.; the air tubes, tr.; 7. nerve; m.and m.’, the two sets of muscles, more or less
displaced in the cutting. 4 inch objective.
16 ANATOMY OF THE MILK-WEED BUTTERFLY.
Fig. 11a, b,c and d. Sections through the integument of the proboscis, showing the different shapes of
the cuticular elements and the lamination of the cuticle, ew.; hy., hypoderm or matrix. Fig. 11¢ shows two
of the cuticular elements separating from each other. 5 inch objective.
Fig. 11le. Cuticle of posterior region of the proboscis from outside; each cuticular block being here pro-
longed into a spine. 4 inch objective.
Fig. 12. Cuticular processes clothing the upper central portion of the food-reservoir. The longitudinal
and transverse muscular fibres are seen beneath. } objective.
Fig. 13. Lateral view of the tip of the abdomen in the male; 7, 8, 9, seventh, eighth and ninth somites
of the abdomen; p., penis; fc. false clasper, overlying the real clasper, ¢., which is shown uncovered in
fig. 13a, by the removal of the whole 8th somite; /.s., hair sheath torn open above, showing the protrud-
ing bundle of hairs; ™m., muscle. X 8.
Fig. 14. Lateral internal view of the male abdomen, showing the genitalia in situ; ¢., testis; v.d., the
double vas deferens ; d.e., ductus ejaculatorius; p.0., interior view of the penis bulb; p.s., penis sheath; r.p.,
retractor penis; p7., internal process of the ninth somite affording the attachment of the retractor penis;
the posterior wall of the process is cut away; ¢., clasper; f.c., false clasper; other letters as in fig. 2. X 8.
Fig. 15. Interior of the exoskeleton of the seventh, eighth and part of ninth abdominal somite, male.
The figure 9 is placed on the ventral arch of the ninth somite, which sends forward the process, pr., for the
attachment of the retractor penis as shown also in the preceding figure. The dotted surface represents the
membrane, connecting the eighthand ninth somites. This membrane is pierced above by the hair-bundle ;
h.s., hair-bundle sheath; 7.m., its retracting muscle. X 8.
Fig. 16. Horizontal section through the tip of the male abdomen showing the penis, p., and its extensor
and retractor, ¢.p., and 7.p.; p.0., penis bulb; p.s., sheath; d.e., ductus ejaculatorius; /.6., cut through hair-
bundle; s.m., intersegmental muscles. X 8.
Fig. 17. Male organs, natural size; ¢, testis, with its supporting tracheae, ¢r.; v.d., vas deferens; gl.,
gland; d.e., ductus ejaculatorius.
Fig. 18. Portion of testis showing the distribution of the tracheae of the left fifth abdominal spiracle.
The branching of only one of the main tracheal stems is figured.
AIAHALINEG GHAM-MTIN YHL 40 ANOLVNV
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Annivers.Memoirs Boston Soc.NatHist. Burgess Plate [I
Edw. Burgess, del AMeisel, lith
ANATOMY OF THRE MILK-WEED BUTTERFLY.
.
1830. ANNIVERSARY MEMOIRS OF THE BOSTON SOCIETY OF NATURAL HISTORY,
THE DEVELOPMENT
OF A
DOUBLE-HEADED VERTEBRATE.
By SAMUEL F. CLARKE, Pu.D.,
ASSISTANT IN BIOLOGY, JOHNS HOPKINS UNIVERSITY, BALTIMORE, MD.
BOSTON:
PUBLISHED BY THE SOCIETY.
1880.
1880,
Tur DEVELOPMENT OF A DouBLE-HEADED VERTEBRATE.
By Samuet F. Cuarxz, Pu.D.
THE mode of origin and development of duplex monstrosities in the vertebrates is one of
those interesting questions so beset with difficulties that it is seldom we can gain any
direct observations with which to test the existing theories. Any one who examines
a considerable number of these double forms cannot fail to notice the varying degrees to
which the duplicity is carried. It is generally agreed that two beings who are in the
slightest way connected by a band of flesh represent one extreme of the series of double
monsters, — as, for example, the Siamese twins, — while the other extreme consists of a
nearly normal form in which there are but the slightest indications of duplicity. Between
these extremes one finds all degrees of variations from the normal. One of the most
generally accepted methods of explaining the origin of these monstrosities is by supposing
that two eggs are fertilized and developed at the same time. This theory would account
very well for ordinary twins, or for such as the celebrated Siamese twins, where the
physical band is slight ; but for other forms, in which the duplicity is but partly expressed,
this theory does not answer so well. According to this view, the origin of such a form
as is represented in plate 1, fig. 5, would be explained as follows: Two eggs fertilized at
the same time had been thrown together, remained united, and developed in such a way
as to form the two-headed monster represented. Now this satisfactorily accounts for the
anterior portion only,— the two heads. Why there should not be also two bodies and
four pairs of limbs as well as two heads is explained (?) by saying that the two ova
became united in such a way as to prevent the development of more than the ordinary
arrangement posterior to the head. How is it, then, that the part of the animal which is
single is so regularly and symmetrically developed? This would seem highly improbable
if two eggs at a very early stage had been thrown together. Hach egg, of course, has the
tendency to develop one symmetrical organism, like that from which it came. Now,
when two eggs become united, it does not seem very reasonable to suppose that these
tendencies will remain intact in certain parts of the united mass, so as to produce two
heads or two tails, ete., while in other parts we find a perfectly normal development.
To account for this, we must suppose that either a part of the mass of one egg loses its
tendency to develop and takes no active part in the progressive changes, being merely
absorbed by the protoplasm of the other egg, which has retained its tendency or power to
oo?
develop, or that both portions have become intermingled, and in this enlarged mass there
4 CLARKE ON THE DEVELOPMENT OF
exists, either as a newly formed or as a product of the union of the two individual
tendencies, the ability to develop one normal form. Still less probable does this seem
when we consider the forms in which duplicity is but very slightly indicated, las, for
example, where there are two thumbs on each hand. In this case one would be forced
to believe that these small appendages were the only expression of that strong tendency
of each ovum to produce a being like the one from which it had its origin. In other
cases where the duplicity is much more complete, as in the Siamese twins, it may be
supposed that the embryos did not come in contact until after they were considerably
advanced. This would seem somewhat more reasonable. Moreover, if two ova are united
intimately and then develop into a monster but slightly duplex, we should expect to find
the animal of unusual size. This, however, is very often not the case. In the Ichthyop-
sida, and especially in the Teliosts, where many eggs are hatched at the same time, and
among which specimens of duplicity are not uncommon, these latter are often, though not
always, smaller than their brothers of the same age. This would seem to indicate that,
in some instances, duplex monstrosities arose from the union of two eggs, while others
came from a single egg.
The idea that one ege may give rise to two animals, or to a duplex form, has also been
often advanced. This theory would account for all such forms of every degree, and this
is certainly a strong point in its favor, as there exists a complete series between the
extreme former, by supposing that there existed in some eggs an unusual amount of
developmental activity, so that, instead of developing in the regular way, it pushed beyond
its bounds and formed additional parts. By this theory one can explain all cases of
duplicity by supposing a greater or less degree of extra developmental power. A small
amount might produce only a secondary thumb, while an extreme amount might give
rise to a nearly or quite complete form like itself.
This theory that double monsters origimate from one egg has better support than
any other. In the first place, as there is a continuous series of these forms from one
extreme of duplicity to the other, a theory that shall be satisfactory must explain them
all. That is true of this theory. Secondly, these forms are not (so far as I have had a
chance to investigate) any larger, and not often so large, as other individuals born at the
same time. Were they the product of two eggs this would probably not be the case.
Thirdly, all double monsters in which the bodies are sufficiently developed are both
invariably of the same sex.
A very interesting case in connection with this question in Teratology came under
my notice in the spring of 1879. I had in my aquarium a large collection of between
two and three thousand eggs of Amblystoma punctatum, of which I was studying the
development. Examining great numbers of them daily, I chanced to find one in which
the medullary folds were nearly completed, but in which the latter had not united at the
cephalic end, and in which they appeared so much elevated and rounded at their anterior
ends, with well defined instead of ordinary vague outlines, that I kept the egg by itself
and watched its development. When first found it was in about the condition represented
in plate 1, fig. 1. Figs. 1 and 2 are from memory. The original sketches from life were
unwittingly destroyed. Having watched the development and made sketches of the
embryo my memory is very clear on the subject; so that, while it is much to be regretted
A DOUBLE-HEADED VERTEBRATE. 5
that the original sketches are gone, I feel that the two given are accurate in all the
essential points. I have also given two figures froni life of normal development at the
same stages for comparison. As the medullary folds closed in, they failed to unite along
a certain part of the thickened cephalic end. Then each free portion of the medullary
folds developed a perfect head, which at first partly united, gradually became more so,
until they were connected throughout their entire lengths. Posterior to the heads,
however, there are no indications of duplicity. There is but one body with the regular
appendages and cloaca. One of the heads, the right, is larger than the left, and somewhat
more in a direct line with the body than the smaller head of the left side. Each head has
a pair of well-formed eyes and a mouth. The branchiae of the right head are quite
normal; those of the right side of the left head are unusually small and crowded down by
the branchiae of the left side of the right head; the branchiae of the left side of the left
head are abnormally large, sufficiently so to make good the want of size of those of the
right side. The right head is much nearer the plane of the body than the left, as will
readily be seen from the position of the eyes and mouth. The smaller head, however, is
so twisted, or rotated, that its left side is in about the same plane as the ventral side of
the body. Having reached the stage indicated in figs. 5 and 6, the animal died.
The interesting point in this observation lies in the fact that a two-headed monster, with
one regularly symmetrical body, was developed from one egg, and that the anterior
portion of each medullary fold gave origin to a head.
It is a point in favor of the theory of a tendency of singleness toward duplicity; that
is of one egg having a tendency to develop into two animals, more or less completely.
It is quite surprising to find that the portion of each medullary fold which ordinarily
gives rise to a definite half of the head, with its sense organs and appendages, should, in
this case, have developed a perfect head with paired eyes and ears and branchiae.
EXPLANATION OF PLATE.
Figs. 1-4. All the figures enlarged to thirty diameters.
Fig. 1. Dorsal view of the earliest stage in which the embryo of the monstrous form was observed.
A, the space separating anterior ends of medullary folds, and across which they never united; mf, medullary
folds; mp, medullary plate; mr, medullary groove.
Fig. 2. A later stage of the same embryo. S.
In other words, if E adds itself to M, S immediately offers the least resistance, and
motion occurs in spite of it.
But the E does not seem to form an integral part of the M. It appears adventitious
and indeterminate in advance. We can make more or less as we please, and if we make
enough we can convert the greatest mental resistance into the least.
THE FEELING OF EFFORT. 29
Now the question whether this appearance of ambiguity is illusory or real, is the
question of the freedom of the will. Many subtle considerations may be brought to prove
that the amount of effort which a moral motive comports as its ally, is a fixed function of
the motive itself, and like it, determined in advance. On the other hand, there is the
notion of an absolute ambiguity in the being of this thing, and its amount, sun-clear to
the consciousness of each of us. He who loves to balance nice doubts and probabilities,
need be in no hurry to decide. Like Mephistopheles to Faust, he can say to himself,
“ dazu hast du noch eine lange Frist,” for from generation to generation the evidence for
both sides will grow more voluminous, and the question more exquisitely refined. But
if his speculative delight is less keen, if the love of a parti pris outweighs that
of keeping questions open, or if, as a French philosopher of genius! says, “7? amour de la
‘vie qui sindigne de tant de discours,” awakens in him, craving the sense of either peace
or power; then taking the risk of error on his head, he must project upon one of the
alternatives in his mind, the attribute of reality for him. The present writer does
this for the alternative of freedom. May the reader derive no less contentment if he
prefer to take the opposite course !
Only one further point remains, but that is an important one philosophically. There is
no commoner remark than this, that resistance to our muscular effort is the only sense
which makes us aware of a reality independent of ourselves. The reality revealed to us
in this experience takes the form of a force like the force of effort which we ourselves
exert, and the latter after a certain fashion serves to measure.” This force we do
not similarly exert when we receive tactile, auditory, visual and other impressions, so the
same reality cannot be revealed by those passive senses.
Of course if the foregoimg analysis be true, such reasoning falls to the ground. The
“muscular sense” being a sum of afferent feelings is no more a “ force-sense”’ than any
other sense. It reveals to us hardness and pressure as they do colour, taste, smell,
sonority, and the other attributes of the phenomenal world. To the naive consciousness
all these attributes are equally objective. To the critical all equally subjective. The
physicist knows nothing whatever of force in a non-phenomenal sense. Force is for him
only a generic name for all those things which will cause motion. A falling stone, a
magnet, a cylinder of steam, a man, just as they appear to sense, are forces. There is
no supersensible force in or behind them. Their force is just their sensible pull or push,
if we take them naturally, and just their positions and motions if we take them
scientifically. If we aspire to strip off from Nature all anthropomorphic qualities, there
is none we should get rid of quicker than its “ Force.” How illusory our spontaneous
notions of force grow when projected into the outer world becomes evident as soon as we
reflect upon the phenomenon of muscular contraction. In pure objective dynamic terms
(i. e., terms of position and motion), it is the relaxed state of the muscle which is the
state of stress and tension. In the act of contraction, on the contrary, the tension
1J. Lequier: La Recherche d’une Premiere Vérité, 1865. on “the Force behind Nature,” by Dr. Carpenter, reprinted
p- 90. in the Pop. Se. Monthly for March, 1880; Martineau’s Review
2 See for example, Psychology, Part VII,Chaps. XVI and of Bain; Mansel’s Metaphysics. pp. 105, 346.
VII; Herschel’s Familiar Lectures, Lecture XII ; an article
30 WILLIAM JAMES ON
is resolved, and disappears. Our feeling about it is just the other way,—which shows how
little our feeling has to do with the matter.
The subject has an interest in connection with the free-will controversy. It is an
admitted mechanical principle that the resultant movement of a system of bodies linked
together in definite relations of energy, may vary according to changes in their collocation,
brought about by moving them at right angles to their pre-existing movements; which
changes will not interfere with the conservation of the system’s energy, as they perform
work upon it. Certain persons desiring to harmonize free will with the theory of
conservation, have used this conception to symbolize the dynamic relations of will with
brain, by saying that the mental effort merely determines the moment and the spot at
which a certain molecular vis viva shall start, by a sort of rectangular pressure
which plays the part of an independent variable in the equations of movement required
by the principles of conservation. Thus free will may be conceived without any of the
internal energy of the system being either augmented or destroyed.
Now so long as mental effort in general was supposed to have a particular connection
with muscular effort, and so long as muscular effort was supposed to reveal to us behind
the resistance of bodies, a “force” which they contained, there was a ready reply to all
this speculation. Your will, it could be said, is doing “ work” upon the system. “ Work”
is defined in mechanics as movement done against resistance, and your will meets
with a resistance which it has to overcome by moral effort. Were the molecular
movements brought about by the will, rectangular to pre-existing movements, they
would not resist, and the volition would be effortless. But the volition involves effort,
and since according to the will-muscle-force-sense theory, its effort is an inner force which
overcomes a real outer force, since, indeed, without this antagonism we should be
without the notion of outer force altogether, why then the effort, if free, must be an
absolutely new contribution and creation so far as the sum of cosmic energy is con-
cerned. The only alternative then (if one still held to the will-muscle-force-sense
theory) was either with Sir John Herschel,' frankly to avow that “force”? may be
created anew, and that “ conservation” is only an approximate law; or else to drop free-
will, in favor of conservation, and suppose the ego in willing, to be merely cognitively
conscious, in the midst of the universal force-stream, of certain currents with which
it was mysteriously fated to identify itself.
To my mind all such discussions rest on an anthropomorphization of outward force,
which is to the last degree absurd. Outward forces so far as they are anything,
are masses in certain positions, or in certain movements, and nought besides. The
muscular “ force-sense’’ reveals to us nothing but hardness and pressure, which are sub-
jective sensations, like warmth or pain. The moral effort is not transitive between the
inner and the outer worlds, but is put forth upon the inner world alone. Its point of
application is an idea. Its achievement is “reality for the mind,” of that idea. That,
when the idea is realized, the corresponding nerve tracts should be modified, and so
de proche en proche, the muscles contract, is one of those harmonies between inner and
>
outer worlds, before which our reason can only avow its impotence. If our reason tries to
interpret the relation as a dynamic one, and to conceive that the neural modification is
1 Loe. cit., p. 468.
THE FEELING OF EFFORT. 831
brought about by the idea shoving the molecules of the ganglionic matter sideways from
their course, well and good! Only we had better assume ourselves unconscious of the
dynamism. We are unconscious of the molecules as such, and of our lateral push as such.
Why should we be conscious of the “force” as such, by which the molecules resist the
push? They are one thing, and the consciousness which they subserve is always an idea
of another thing. The only resistance which the force of consciousness feels or can feel,
is the resistance which the idea makes to being consented to as real.
CONCLUSIONS.
1. Muscular effort, properly so called, and mental effort properly so called, must be
distinguished. What is commonly known as “muscular exertion,” is a compound of the
two.
2. The only feelings and ideas connected with muscular motion are feelings and ideas
of it as effected. Muscular effort proper, is a sum of feelings in afferent nerve tracts,
resulting from motion being effected.
3. The pretended feeling of efferent innervation does not exist —the evidence for
it drawn from paralysis of single eye muscles, vanishing when we take the position of the
sound eye into account.
4. The philosophers who have located the human sense of force and spontaneity in
the nexus between the volition and the muscular contraction, making it thus join the inner
and the outer worlds, have gone astray.
5. The poimt of application of the volitional effort always lies within the inner
world, being an idea or representation of afferent sensations of some sort. From its
intrinsic nature or from the presence of other ideas, this representation may spontaneously
tend to lapse from vivid and stable consciousness. Mental effort may then accompany
its maintenance. That (being once maintained) it should by the connection between
its cerebral seat and other bodily parts, give rise to movements in the so-called
voluntary muscles, or in glands, vessels, and viscera, is a subsidiary and secondary matter,
with which the psychic effort has nothing immediately to do.
6. Attention, belief, affirmation and motor volition are thus four names for an identical
process, incidental to the conflict of ideas alone, the survival of one in spite of the
opposition of others.
7. The surviving idea is invested with a sense of reality which cannot at present be
further analyzed.
8. The question whether, when its survival involves the feeling of effort, this feeling
is determined in advance or absolutely ambiguous and matter of chance as far as
all the other data are concerned, is the real question of the freedom of the will, and
explains the strange intimateness of the feeling of effort to our personality.
9. To single out the sense of muscular resistance as the “force sense” which alone can
make us acquainted with the reality of an outward world is an error. We cognize outer
reality by every sense. The muscular makes us aware of its hardness and pressure,
just as other afferent senses make us aware of its other qualities. If they are too
anthropomorphic to be true, so is it also.
39 THE FEELING OF EFFORT.
10. The ideational nerve tracts alone are the seat of the feeling of mental effort. It
involves no discharge downward into tracts connecting them with lower executive centres;
though such discharge may follow upon the completion of the nerve processes to which the
effort corresponds.
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