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EDITED BY
J. MCKEEN CATTELL
VOLUME LXxl
JULY TO DECEMBER, 1907
NEW YORK
SERE\SCIEN CE PRESS
1907
Copyright, 1907
THE SCIENCE PRESS
Press OF
THe New ERA PRINTING COMPANY
LANCASTER, PA.
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DMO N PELE
JULY, 1907
WHAT WE OWE TO AGASSIZ?
By PROFESSOR BURT G. WILDER
CORNELL UNIVERSITY
HIS day, one hundred years ago, was born in Switzerland a man-
child destined to astonish and uplift the world. Christened Jean
Louis Rodolphe, he was and is known as Louis Agassiz, or simply
Agassiz, his eminent son being distinguished as Alexander.
Why is this centennial celebrated here and elsewhere? Rather, by
such as know what Agassiz was, what he did, and what he tried to do,
would it be asked, Why is not this day observed in all lands, by all
classes, yea, even in behalf of animals, plants, the rocks and the very
elements ?
For, from a child, Agassiz loved nature and humanity. The one
he strove to interpret, the other to cheer and enlighten. He was a
naturalist in the broadest sense, a sense broader than is possible in these
days. His thirst for knowledge was equaled only by his desire to
impart it, and his ability to earn money was surpassed only by his
determination to spend it for the welfare of man and the glory of God.
More or less complete accounts of Agassiz have been published in
various books and periodicals. A partial list of these is included. By
far the best, although lacking many desirable details and restricted by
the relationship, is the “ Life and Correspondence” by his wife. My
admiration for this grows with each re-reading. In respect to both
subject and style it might well be included among the entrance require-
ments in English. It portrays an eminent scholar, indefatigable col-
lector and teacher, sincere patriot, staunch friend and fascinating per-
sonality in a manner so just, so vivid and inspiring that, were it prac-
ticable, in place of the many spoken observances of this centenary, I
* Address at the Centenary of Louis Agassiz delivered, at the request of
President J. G. Schurman, in Barnes Hall, Cornell University, May 28, 1907.
6 _ POPULAR SCIENCE MONTHLY
could wish that the coming Memorial Day might be partly devoted to
its perusal—out-of-doors—by every man, woman and child.*
In enumerating the grounds upon which this commemoration might
be well-nigh cosmic in its scope, so far as possible I shall use the words
of Agassiz himself or of others fitly representing the several groups.
The following account of the “ Glacial Theory ” is condensed from
the address* at the unveiling of the Agassiz tablet in our Memorial
Chapel, June 17, 1885, by the geologist and paleontologist, Professor
J.S. Newberry:
“Tn 1837 the Association of Swiss Naturalists met at Neufchatel,
and Agassiz then advanced the theory of a general glacial epoch of
which he may justly be called the author. At first it met with violent
opposition [Marcou says, p. 108, ‘it was like a pistol-shot fired into
the midst of the assembly ’], but this only stimulated those who had
adopted it to greater enthusiasm in their researches. . . . One of the
motives which led Agassiz to America was his ardent desire to see for
himself whether the glacial record was the same for the New as for the
Old World. ... Many years before his death he had the satisfaction of
knowing that his theory was applicable to the whole northern hemi-
sphere, and the pleasure of studying a similar record in southern South
America.” I wish there were time to quote from Mrs. Agassiz’s volume
(pp. 317-332) the graphic, indeed thrilling, story of his life upon the
glaciers. He once caused himself to be lowered into a crevasse to the
depth of one hundred and twenty-five feet, when death would have at-
tended either the fraying of the rope by sharp edges of ice or the dis-
lodgement of the huge stalactites between which he had to steer his way.
Agassiz was a well-informed botanist. His “ Lake Superior” and
“A Journey in Brazil” deal largely with vegetation; two or three
smaller papers are botanic, and one of the courses before the Lowell
Institute was, he told me, upon trees and plants.* A member of the
administrative staff of our College of Agriculture related to me the fol-
lowing incident: During Agassiz’s stay here in 1868 he often walked
about the then very open campus. She and her brother, little children,
conceived a great admiration for him, called him “our French-
man,” and used to offer him flowers. On one occasion she was
about to pluck a red clover upon which a bumblebee had just alighted.
* The only other comparable biography is the “ Life, Letters and Works ” by
Marcou, and it will be quoted frequently. Its peculiarities are well stated in
The Nation for May 7, 1896. In a letter to me, dated March 21, 1896, he ex-
presses his regret at the inadvertent omission of “some of the best” from the
enumeration of Agassiz’s pupils and assistants.
’ As printed in the “ Proceedings in memory of Louis Agassiz and in honor
of Hiram Sibley,” pp. 11-12.
*May this be that which was given in 1853 under the title, “ Natural
History ”?
WHAT WE OWE TO AGASSIZ 7
He restrained her, saying gently, “ Do not frighten it away; the bees
are the friends of the flowers.” *
Agassiz’s concern for the promotion of agriculture was evinced by
word and deed upon many occasions.® In 1861 he supervised the draw-
ings for the “ New Edition ” of Harris’s “ Insects injurious to vegeta-
tion,” and “rendered assistance by way of suggestion and advice
throughout ” the publication of the work that was the prototype of
the later extensive reports and organizations, state and national, in
the line of é€conomic entomology. The last chapter of “ A Journey
in Brazil,” published in 1868, was more than half devoted to the agri-
culture and forestry of that country.
So deeply interested was Agassiz in the problems involved in the
improvement of domesticated animals that, at the close of his exhaust-
ing summer at Penikese, and only three months before his death, he
wrote me a letter of 1,700-1,800 words devoted mainly to that subject.
The following sentences are very suggestive:
We naturalists can not afford the expense necessary for making the investi-
gations and answering the questions about which farmers universally expect us
to be prepared to give information. It would cost hundreds of thousands of
dollars to study the embryology of the horse as I have studied that of the
snapping-turtle. But turtle eggs can be had for the asking, while every egg and
every embryo of the higher animals will cost the price of a mare or a cow, and
so for other species. I do not know one scientific man in the world so placed
that he could kill one hundred of these animals a year, for a number of succes-
sive years in order to study their embryology; and yet until this is done we shall
go on groping in the dark as far as any real improvements in the breeding of
stock are concerned.
It is probable that this topic occupied him in his last public effort,
a lecture on “ The Structural Growth of Domesticated Animals ” before
the Massachusetts State Board of Agriculture, only twelve days before
his death.
On the twenty-eighth of May, 1874, the birthday of Agassiz next
following his death, there was held here a Memorial Meeting.” It was
addressed, among others, by the Hon. John Stanton Gould, then our
non-resident lecturer on agriculture, who had witnessed interviews be-
tween Agassiz and farmers seeking information as to animals, crops
and soils. He said “It was beautiful to see that illustrious man
impart the needed facts in language perfectly adapted to the intellectual
and scientific status of the inquirer.”
*See, also, the relation of a botanist, Professor C. F. Millspaugh, Cornell
Era, June, 1907, p. 443, and “ Proceedings of the Memorial Meeting of the Cam-
bridge Historical Society,” May 27, 1907.
*It is not easy to account for the omission of entries like agriculture and
farmer from the indexes of the volumes by Marcou and Mrs. Agassiz.
‘It was for the purpose of raising a sum to be added to the “ Teachers and
Pupils’ Fund” in support of a scholarship at the Museum. There was raised
$100, of which about one fourth was given by President White.
8 POPULAR SCIENCE MONTHLY
How clearly the situation was recognized by Agassiz himself is
shown in the following paragraph from the preface to his “ Contribu-
tions to the Natural History of the United States”:
There is not here [as in Europe] a class of learned men, distinct from the
other cultivated members of the community. On the contrary, so general is the
desire for knowledge, that I expect to see my book read by operatives, by fisher-
men, by farmers, quite as extensively as by the students in our colleges or by
the learned professions, and it is but proper that I should endeavor to make
myself understood by all.
For the means of carrying on the regular work of the museum, and
for such special projects as are referred to above, Agassiz depended
largely upon grants from the state legislature as recommended by the
board of education. Many of the legislators were farmers or from
agricultural districts, so that his efforts to improve the quality of domes-
ticated animals and to check the ravages of insects were both natural
and politic.
But it may well be doubted whether even the weighty facts and
arguments at his disposal would have sufficed without the extraordinary
influence of his personality and eloquence. This was alluded to by
Oliver Wendell Holmes® in the sentence, “The hard-featured country
representatives flocked about him as the fishes gathered to hear Saint
Antony, as the birds flocked to hear the sermons of Saint Francis.” It
has been more fully described by Thomas Wentworth Higginson and
Charles Mellen Tyler.? With the latter’s permission I will quote it in
advance, nearly verbatim:
In 1861-2 I was in the Massachusetts Legislature and a member of the
Committee on Education before which Professor Agassiz appeared to secure the
annual appropriation for his museum. It was the year of the storming of Fort
Sumter, of the attack upon a Massachusetts regiment passing through Balti-
more, and of the first battle of Bull Run. Members of both houses of the Legis-
lature foresaw a prolonged and bloody conflict, a great demand upon the Treas-
ury, an increased and burdensome taxation to maintain the forces in the field.
Our hearts were not high; we cut and slashed all bills of appropriation, and
scrutinized with microscopic suspicion every bill of either house which looked
to any increase of expenditure. Our committee anticipated the interview with
Agassiz with some impatience and in a negative disposition of mind. We had,
in fact, resolved beforehand not to recommend to the House and Senate the usual
gift from the State. But when Agassiz appeared before us with his delightful
accent and bland, persuasive, almost affectionate personal appeal to each of us,
we wholly forgot the distress of the nation, the probable rejection of our recom-
mendation by the two houses, and went over to Agassiz, horse, foot and dragoons,
reported a bill for the usual outlay for his benefit, and to our surprise we
carried it through.
® In the letter declining the invitation to attend the unveiling of the Agassiz
tablet, p. 7 of the “ Proceedings ” mentioned above.
°The former in the Boston Transcript for April 23, 1907, and the latter in
the Harvard Graduates’ Magazine for June, 1907, p. 778.
WHAT WE OWE TO AGASSIZ 9
Agassiz was born near Lake Neufchatel in the region known as the
Seeland of Berne. His early home was literally surrounded by lakes,
rivers and marshes. “ Almost as soon as he was able to move alone he
took to water like a young duck. All the fishermen became at once
very fond of the little fellow, and there was a friendly rivalry among
them to get him into their boats and show him how to catch fish.’’?°
This friendly relation with the takers of fish was maintained
throughout his life. Wherever he went he visited the markets and
ascertained who were the most enterprising and intelligent purveyors.
From them he gained not merely specimens but information, and to
them he imparted his own knowledge in appropriate terms. One of his
closest friends was Captain N. E. Atwood, of Provincetown, Mass.,
whose personal knowledge of marine fish and fisheries was so highly
estimated by Agassiz that, upon the latter’s suggestion, he was invited
to give a course of lectures before the Lowell Institute.
In 1853 he issued a circular asking for collections of fishes from various
fresh-water systems of the United States. ... To this he had hundreds of an-
swers, many of them very shrewd and observing... . / A great number and variety
of collections . . . were forwarded. As to the marine forms, “many a New
England captain, when he started on a cruise, had on board collecting cans,” fur-
nished by Agassiz, to be filled... and returned.” (Mrs. Agassiz, pp. 518-519.)
The participation of women in any memorial of Agassiz is most
natural. His mother was his most intimate friend and his letters to
her from America are simply delightful. At the museum his lectures
were open to women as well as men. He had great sympathy with the
desire of women for larger and more various fields of study and work,
and a certain number, including the lbrarian, have always been em-
ployed as assistants. For eight years (1855-63) he lectured almost
daily in a school conducted by his wife; and upon her intellectual com-
panionship and cooperation he became so dependent that he once de-
clared to me, with signs of deep emotion, “ Without her I could not
exist.” Never from his lips did I hear a word that might not have
been spoken in her presence.
In 1873, of the forty-four teachers admitted by him as pupils at the
Penikese school, sixteen—more than one third—were women. Coedu-
cation—then hotly debated and regarded by some as a bugbear—had
not with him even the dignity of existence as a problem. He declared
that he had “no hesitation from the start.” His attitude was certainly
consistent; among the theses defended at his graduation in 1830 one
was entitled Femina humana mari superior. Are some male members
of this university concerned lest that phrase become the appropriate
motto for the College of Arts and Sciences ?
10 Marcou, I., pp. 7-8.
1 QOne of these cans arrived at Penikese during the last summer of his life,
and I well recall the interest, akin to that in a Christmas box, with which
Agassiz and his assistants and pupils drew forth the contents.
Lo POPULAR SCIENCE MONTHLY
Before me are representatives of the African race, members of the
university in full enjoyment of all its educational advantages. Fitly
may they unite in honoring the memory of one who so effectively aided
the establishment of this cosmopolitan institution. For, whatever
may have been Agassiz’s technical views as to the diversity of origin of
the so-called human races, and however he may have deprecated amal-
gamation and the premature conferring of certain political privileges,
his correspondence with Dr. Samuel G. Howe leaves no doubt as to his
position upon the fundamental issue:
The negroes should be equal to other men before the law. . . . They are en-
titled to their freedom, to the regulation of their own destiny, to the enjoyment
of their life, of their earnings, of their family circle. . . . It is one of our
primary obligations to remove every obstacle that may retard their highest de-
velopment.
One of Agassiz’s two daughters married Quincy A.,brother to Robert
Gould Shaw, commander of the “ Fifty-fourth,” the first of the two
Massachusetts colored regiments in the Civil War. On the eighteenth
of July, 1863, Colonel Shaw fell at Fort Wagner and was there buried
with his dusky followers. So far from regretting the circumstances
of his death or the nature of his last resting-place, the hero’s name has
been repeated in the second generation.
By none should the memory of Agassiz be cherished more devoutly
than by the science teachers of America. I refer here not so much to
the favored few? who enjoyed his direct instruction whose office is
so finely drawn in these lines by James Russell Lowell:
He was a Teacher; why be grieved for him
Whose living word still stimulates the air?
In endless file shall loving scholars come,
The glow of his transmitted touch to share.
From highest to lowest, every teacher of natural science in this
country is indebted to Agassiz for improvements in methods, for eleva-
tion of public respect, and for increase in compensation.
Upon the point last named Agassiz had cause for entertaining de-
cided views. For years his regular salary was only $1,500; indeed, not
until the very end did a gift relieve him entirely from the necessity for
outside labors which doubtless shortened his days. His last letter to
me, dated November 25, 1873, contained the following significant sen-
tence: “If scientific men are ever to be placed on a proper footing of
independence in this country, it is for the younger to work for it. They
have a fine opportunity of doing it by pointing out what the older men
have done on a starving allowance.” On an earlier occasion he declared
2 Wor example, A. C. Apgar, of Trenton; W. O. Crosby, of Boston; W. K.
Brooks, of the Johns Hopkins; David S. Jordan, of Stanford; C. 8. Minot and
W. H. Niles, of Boston; T. B. Stowell, of Potsdam, N. Y.; C. O. Whitman, of
Chicago, and A. E. Verrill, of Yale.
WHAT WE OWE TO AGASSIZ II
that thereafter he would not give a public lecture for less than $500, in
order to let those who held the purse-strings appreciate the value of
such services.1* While he did not hesitate to accept for the museum,
at a low remuneration, or even with none, the services of young men
who desired at the same time to learn from him or to enjoy opportuni-
ties for research, my personal experience with him during four years
and one summer warrants me in saying that in cases of a different sort
he was liberal and even generous.
At the middle of the last century American naturalists were few,
scattered and little understood. Commonly their vocation was medi-
cine, and their botanic and zoologic avocations were rather condoned
than commended. ‘The prevailing notions are embodied in this anec-
dote: A few years after his arrival in America Agassiz made one of a
small party of Harvard professors who traversed the White Mountain
region in a carriage driven by a countryman. ‘Three of them were
vivacious, restless, and on the lookout for specimens. They would call
a halt; leap from the vehicle before it stopped; dash over the fields,
and return with prizes in their boxes, in their hands and pockets, and
even pinned upon their hats. The fourth, Professor Felton, the brother-
in-law of Agassiz, sat quietly in his corner reading a favorite Greek
author. When the bewildered driver could stand it no longer he elicited
from Felton information which led him to view the behavior of the
others with compassionate toleration. His interpretation was thus con-
veyed to the innkeeper at the close of the day: “I drove the queerest
lot you ever saw. They chattered like monkeys. They wouldn’t keep
still. They jumped the fences, tore about the fields, and came back
with their hats covered with bugs. I asked their keeper what ailed
them; he said they was naturals, and judgin’ from the way they acted
I should say they was.”
Before long, however, in and about Cambridge and wherever Agassiz
remained for any time, he and those inspired by him made the pursuit
of natural history not only familiar and reputable, but almost fashion-
able. Yet when this university opened the collecting of specimens was
so unusual that the following incident is related to me by Winfield
Scott Merrill, who was here in 1868-9:
While walking in the country I saw a boy holding a horse, and he told me
it belonged to a “crazy Dutchman” over in the woods looking for birds’ nests."*
In an article, “ Louis Agassiz, Teacher,’ his ideas and practise as
to methods of teaching are considered by me at some length. On the
present occasion I quote from E. L. Youmans, late editor of the Pop-
ULAR SCIENCE MONTHLY:
* This was said to Professor Wyman in my presence, November 17, 1866.
“This was printed in the Cornell Era of the period, but by some it was
regarded as a myth. aril UN 3
*In the June number of the Harvard Graduates’ Magazine. & as LaF “y’ an
nen
» 2 ®
Oh
12 POPULAR SCIENCE MONTHLY
Agassiz had a profound interest in popular education, but the soul of that
interest was for improvement in its methods. In the matter of public instruction
he was a revolutionist and a propagandist. He warred with current ideas and
consecrated practises. He condemned in the most emphatic way the wretched
lesson-learning routine that prevails in the schools. .. . He never wearied in the
endeavor to propagate more rational opinions, and we can not doubt that the
seed thus sown will yet ripen into most valuable fruit. He denounced our wordy
and bookish education as baseless and unreal, and demanded such a change in
our system of instruction as shall bring the pupils face to face with nature her-
self, and call out the mind by direct exercise upon phenomena—the facts, laws,
relations and realities of the world of experience.
The abundance of this educational fruit is indicated by Liberty H.
Bailey, an exponent alike of “ nature-study teaching ” and of “ science-
teaching for science’ sake”
Agassiz gave us the motto, “Study nature, not books.” He taught the
study of nature by the natural method. . . . And, although his teaching may
not have been nature-study, as we understand the term—being given from the
investigator’s or the specialist’s view-point, and intended primarily for students
and adults—the present nature-study movement undoubtedly is a proximate
result of the forces that he set in motion. (‘‘ The Nature-study Idea,” pp. 5, 6, 8.)
Summer schools and biologic stations are now so common at the
seashore and by inland waters that those who attend them for instruc-
tion or research do not always realize their origin with Agassiz, thirty-
five years ago in the establishment of “ The Anderson School of Natural
History at Penikese Island.” Its history is given in the report of the
trustees, and various aspects of it have been presented in the publica-
tions enumerated in my article, “ Agassiz at Penikese.”*® The first
session was directed by Agassiz himself, in the last summer of his life;
the second by his son. “ Although,” to quote Mrs. Agassiz (p. 772),
“the Penikese school may be said to have died with its master, it lives
anew in many a seaside laboratory organized upon the same plan.”
Our proneness to forget the pioneers by whose ideas and labors we
profit was noted by Agassiz himself in his Humboldt Address (pp.
5,26)":
The fertilizing power of a great mind is truly wonderful; but as we travel
farther from the source, it is hidden from us by the very abundance and pro-
ductiveness it has caused.
Particularly should this day be remembered by that apparently
diminishing number of collegiate teachers who hold that the kingdom
of scholarship cometh not with observation nor with the assumption of
millinery. In this country Agassiz wore no decorative ribbon of any
kind, although he possessed that of the Red Eagle of Prussia and
that of the French Legion of Honor. Although impressive in aspect
and dignified in manner, he was extremely simple and unpretending in
his ways, and did not like to make an appearance different from that of
ordinary people in his neighborhood. He was of a joyous disposition
1° American Naturalist, March, | 1898.
WHAT WE OWE TO AGASSIZ 13
and upon occasion he could be merry as a child. But for his merri-
ment time and place must be fitting; Dulce est desipere in loco. He
upheld the dignity of scholarship, and regarded university property and
university time as consecrated to the loftiest functions.
Agassiz has not generally been thought of as a disciplinarian; yet
a single incident would justify the celebration of this day by those
who regard the saying, “ Boys will be boys,” as inapplicable beyond
the secondary school. Early in the summer at Penikese three young
men committed a breach of decorum which some might consider
amusing. The next morning Agassiz simply announced that they had
shown themselves undeserving and would leave the island before noon.
To the public Agassiz was best known through his lectures before
the Lowell Institute and elsewhere, and by the “ Methods of Study
in Natural History.” But an enormous amount of technical work is
represented by his European publications, by the four volumes of the
* Contributions to the Natural History of the United States,” and by
his papers of greater or less length upon many zoologic topics. Marcou
enumerates 425 titles. Coues thinks’?
the greatest practical boon he ever conferred upon working naturalists was his
“ Nomenclator Zoologicus,” with its accompanying index—the veriest drudgery
imaginable for an author, yet drudgery of a kind that no hack or mere compiler
could have performed; and only those who have to keep it at their elbows can
be sufficiently grateful for this instrument.
But working zoologists, anatomists and chemists are indebted to
Agassiz for another practical service which probably could not have
been rendered so efficiently by any other human being, viz., the remis-
sion, by act of congress, of the tax upon alcohol used for scientific
purposes. Alcohol is consumed largely in chemical laboratories, and
it was nearly the only museum preservative in use before the com-
paratively recent introduction of formal. Representations to con-
gress were made by Spencer F. Baird and others concerned, but it is
doubtful if they would have succeeded without the exercise of Agassiz’s
commingled powers of conviction and persuasion.
No native scientist did more than Agassiz to establish and main-
tain the intellectual independence of his adopted country.** Aside from
his published works, his training of young men, his founding of the
museum and his provision of means for employment and research that
might otherwise have been sought abroad, upon at least two occasions
he urged such cultivation of science in this country as should free
American naturalists from the necessity of looking up to Europeans
ac their leaders and guides.
At the annual meeting of the Boston Society of Natural History,
% Review of “ Marcou” in The Nation, May 7, 1896.
% Unconsciously I have used here nearly the words of Oliver Wendell
Holmes in his letter referred to above.
14 POPULAR SCIENCE MONTHLY
May 17, 1848, “he made a most earnest and stirring appeal” in that
direction. Three years later he made a declaration of sentiment and
policy, emphatic, specific and self-sacrificing. This shall be given in
his own words :7®
Twenty years ago I was present at a meeting of the American Association
for the Advancement of Science, held in Cincinnati, where specimens from all
parts of the west were brought together to be seen by the scientific men of the
east. ... When one of the members of the association moved that to make the
best use of these collections they should be sent to Europe to be identified by
paleontologists and zoologists of the old world, I opposed that motion as ear-
nestly as I could, stating that it would be an acknowledgment of inferiority on
the part of America from which we could never rise again. . . . My motion was
carried, and yet I remained under the imputation, which was loudly expressed
by some, that I had carried a big job; that my motion had been made in order
that I might have the benefit of describing those specimens, and thus raise my
reputation. I resolved then to myself, but never spoke of it before, that I would
never describe an American fossil, and I have kept my resolve. The progress
since then has been such that now an American student scouts the idea of send-
ing a piece of work to a European ordeal.
Agassiz came to America upon a scientific mission provided for
by the King of Prussia. He found here unlimited material for re-
search, the chance of earning by lecturing the means of repaying
obligations incurred by his European publications, and a cordial wel-
come alike from naturalists, from society and from the people at
large. Changed political conditions rendered his return less desirable,
and he accepted a professorship in the newly-established Lawrence
Scientific School at Harvard University.2° Ten years later he declined
a favorable and repeated offer of a chair in the Paris Museum of
Natural History. When the Civil War broke out “no American
cared more than he for the preservation of the Union and the institu-
tions it represented.” Indeed, “he was naturalized in the darkest
hour of the war, when the final disruption of the country was con-
fidently prophesied by her enemies. By formally becoming a citizen of
the United States he desired to attest his personal confidence in the
stability of her constitution and the justice of her cause.’”*1
Although the subjects of Agassiz’s studies had commonly to be
killed, he was not a sportsman. “His passion for Natural History
never carried him so far as to shoot birds or animals for sport.” The
” From the report of the meeting of the joint committee on education of
the Massachusetts Legislature as printed in the Boston Weekly Spectator for
February 12, 1871. Among other obvious misprints Agassiz is made to say that
his protest was made “twenty-four” years ago, which would be 1847, whereas
the first Cincinnati meeting of the American Association for the Advancement
of Science was in 1851.
* His first wife died July 27, 1848, and in the spring of 1850 he married
Miss Elizabeth Cabot Cary, of Boston, who became his “ guardian angel.”
#1 Mrs. Agassiz, pp. 568, 570.
WHAT WE OWE TO AGASSIZ 15
creatures needed were put to death, as were the mortally wounded
soldiers by old Ambroise Paré, “ doucement et sans cholére.”
An even more impressive exemplification of the apparently para-
doxical character of Agassiz was his attitude toward theology. His wri-
tings contain abundant evidence of his firm belief in the existence of a
Creator, but he would not discuss dogmas and repelled as impertinent
the too prevalent American fashion of asking what church a man
attends. So while criticized as a bigot by some scientists he was de-
nounced as an infidel by some theologians because he could not reconcile
the facts of geology with the literal interpretations of Scripture. In
this regard, with Lord John Russell in politics, Agassiz might have said
he was “sure he was right because both parties found fault with him.”
To the “ righteous overmuch ” who may hesitate to unite in this com-
memoration of one who seemed to make light of Genesis and to pass
over Adam as if he had never existed, is commended reflection upon
the following incidents: On the eighth of August, 1873, commenting
on the death of an assistant, he said, “ My time will come soon, and I
am ready.” In four short months that time had come.
On the first of May, 1868, to my remark that I could not under-
stand why Providence and the community had allowed him to lack
the means for the complete development of his plans, he replied, “I
suppose it is all right; had I obtained all I wished it might have
gratified my ambition too much.”
At the opening of the Penikese School, July 8, 1873, Agassiz said:
“JT think we have need of help; I ask you for a moment to pray for
yourselves.” The incident was commented upon as follows by Henry
Ward Beecher :??
It seems to us that this scene of Agassiz and his pupils with heads bowed
in silent prayer for the blessing of the God of Nature to be given to that school
then opened for the study of nature, is a spectacle for some great artist to
spread out worthily upon canvas, and to be kept alive in the memory of mankind.
What are coronations, royal pageants, the parade of armies, to a scene like this?
It heralds the coming of the new heavens and the new earth—the golden age
when nature and man shall be reconciled, and the conquests of truth shall super-
sede the conquests of brute force.
As an American, as a student and teacher of science, and as a mem-
ber of Cornell University,?* I might, like hundreds of others, take some
part in this commemoration. But there are special reasons why, when
possible, I have complied with requests to speak or write of Agassiz, and
why the invitation to give the present address was accepted with joy and
with a sense of obligation, notwithstanding its preparation has seriously
“In the Christian Union, July 15, 1873, p. 51. See also “ The Prayer of
Agassiz,” by Whittier.
73 As delivered the address described what Agassiz did for Cornell Univer-
sity, directly and indirectly; see the Cornell Era for June, 1907, pp. 441-446.
16 POPULAR SCIENCE MONTHLY
interfered with prior plans for purely scientific work. I am one of the
few survivors of those who were directly associated with Agassiz as
pupils, assistants or colleagues. He inspired me with interest, with
admiration, with respect, nay, almost veneration. No shadow ever
came between us. Whatever benefits he may have conferred upon
others, I have reason to believe that, outside his family circle, there is
no one, living or dead, who has such cause for gratitude and affection
in return for counsel, for encouragement, for opportunity, and even
for material aid in the form of specimens or information.
The following statements are based not only upon my vivid recol-
lections but upon my diaries and upon the letters of Agassiz, all of
which have been preserved.
I am unwilling to speak of myself on this occasion, and yet I do not know
how else I can do justice to one of the most beautiful sides of his character. His
sympathy for all young students of nature was one of the noblest traits of his
life. It may truly be said that toward the close of his career there was hardly
one such in this country who was not under some obligation to him.*
As of yesterday I recall the first interview, now half a century ago.
At the age of fifteen (in the middle of the last century a considerably
less mature epoch than at present) some observations of mine upon
spiders were brought to the notice of Agassiz by one of his assistants,
James E. Mills, and led to an invitation to visit him. In my “ Ento-
mological Diary” he is described as a “ very pleasant, fine-looking gen-
tleman.” Now I should write, “ The most fascinating and magnificent
of men.”*> At once I appreciated the saying current in Cambridge
that in winter one needed an overcoat less while passing his house.
His commendation of the spider essay led my parents to grant my
request to prepare for the profession of naturalist.
That preparation comprised (1) Two more years of Latin and
Greek to complete the Harvard entrance requirements in those
languages; (2) additions to the collection of insects that formed the
nucleus of the collection at Cornell; (3) reading the first two volumes,
just issued, of Agassiz’s “ Contributions to the Natural History of the
United States ” (Turtles, and Essay on Classification). This was done
before breakfast, and such was my conviction of its value that, although
the text was largely unintelligible at that stage of my progress, I felt
fortified for the ordinary tasks of the day somewhat as is the religious
neophyte by his matutinal fasting and prayer. The experience is
related as a warning rather than as an example, but it illustrates the
influence unconsciously exerted by Agassiz upon those whom he had
welcomed to the scientific fold.
That influence was similarly illustrated while attending his lectures
* Slightly altered from Agassiz’s address on Humboldt, p. 44.
*In a letter dated Charleston, 8. C., March 12, 1853 (printed in the Cen-
tury Magazine for December, 1903, p. 188), Thackeray describes Agassiz as a
“delightful, bonhommious person, as frank and unpretending as he is learned
and illustrious.”
WHAT WE OWE TO AGASSIZ 17
at Cambridge in my first year. No topic was so vital as the general
problem of animal life, and no expositor could compare with Agassiz.
As an outlet for my enthusiasm each discourse was repeated, to the best
of my ability, for the benefit of my companion”® on the daily four-mile
walk between Cambridge and our Brookline home. So sure was I that
all the statements were correct and all the conclusions sound that any
doubts or criticisms upon the part of my acute and unprejudiced friend
shocked me as a reprehensible compound of heresy and Jése majesté.
From the fall of 1866 until, mainly upon his recommendation, my
connection with Cornell University, I was employed in making prepara-
tions to illustrate the structure of sharks and rays for his projected
volume upon those fishes.*7 This work brought me into relations with
him, more and more close, instructive and delightful. From my
diaries and letters are selected a few incidents exemplifying phases
of his nature not generally appreciated.
Speaking of Darwin, whose doctrines he vehemently opposed, he
remarked: “‘ Much as we disagree, we are truly friends.”
With some earlier assistants there had been a serious disagreement
ending in temporary estrangement ;?* yet when their names were men-
tioned before him he made no adverse comment. He once showed me
a letter from one of them asking permission to examine certain speci-
mens at the museum. Upon my remarking that the presence of that
man might not be very pleasant for him he replied, almost with reproof,
“Tt is true that I have built up this museum, but I am only its trustee,
and if the devil himself wished to study here he should be welcome.”
His tenderness is shown in the following incident. The artist who
was drawing the plates for the volume upon sharks and rays above
mentioned was an elderly German who, uncertain of the term of his
employment, had left his family in St. Louis. At last, in his loneliness,
he sent for one of his children, a lad of ten. Supplied with credentials
of various kinds, the boy reached Cambridge and inquired for “ Herr
Professor.” It was after dark and Agassiz sorely needed rest after a
long day at the museum. Yet, instead of summoning a servant, he
took the child by the hand, walked with him several squares, and deliv-
ered him safe to the anxious father.
The summer of 1867 I spent literally at his side in the laboratory
adjoining his summer home at Nahant. Together we dissected the
sharks and rays that were brought in by the fishermen. To the para-
phrase, “ No naturalist is a hero to his laboratory assistant,” he was
7° James Herbert Morse, Harvard, ’63.
7 See his report as director of the Museum of Comparative Zoology for
1867, p. 10.
* The full merits of the case may never be understood, and this is not the
place for its discussion; but in the light of my own experience with him, on the
one hand, and with my pupils and assistants, on the other, I incline toward his
view of it.
VOL. LXxI.—2
18 POPULAR SCIENCE MONTHLY
an exception. For me that summer was a scientific idyl. That the
pleasures of my memory of it are less than perfect is due to my later
realization of how inadequately I appreciated my privileges and oppor-
tunities. Three specifications in the general charge of my unworthi-
ness will serve to set his own tact and delicacy in a clearer light.
A fisherman brought a hammer-head shark. Although familiar
with pictures of its rather strange form, I had never seen a specimen,
and expressed my interest somewhat exuberantly. The man named a
certain price, and Agassiz paid it. When he had gone, Agassiz said to
me seriously, but with no shade of rebuke: “ This shark is not so very
rare, but your outspoken surprise led the. man to ask about twice what
it was really worth.” After that I would have held my peace in the
presence of the “ sea-serpent.”
Agassiz was paying me one dollar per hour, an arrangement con-
venient for both, especially in the summer. I wished to learn stenog-
raphy, and studied that early in the day, going to him about nine o’clock.
One hot July morning I found him grieving over the rapid deteriora-
tion of some specimens that had been brought in at daybreak. I ex-
plained the cause of my delay, and added that, but for the necessity of
earning my living, I would gladly work for him all the time and for
nothing, in return for what I learned from him. “ Ah,” he said, “I
hoped you felt so, but I was not sure. Now we are like lovers after the
important word has been spoken.” Not for all the short-hand systems
ever devised would I lose the memory of those words and of the look
that accompanied them.
In those days (it was forty years ago) it might fairly be said that
about the brain, zoologists knew little and cared less. No one of my
teachers had made a special study of either its structure or its func-
tions.*® That summer, however, Agassiz studied the brains of sharks
and rays, exposing them by “ whittling” the cartilaginous skulls with
a jack-knife given him by Longfellow (who, by the way, made a visit
to the laboratory). He compared the various forms with the only pub-
lished plate we had (that of Dumeril), and would sit poring over
them by the hour. Occasionally he would show them to me, and ask
if I would not like to work at them. (Remember that he was paying
me out of his own pocket and was entitled to assign all the subjects.)
No, I had started upon some other parts of the anatomy, and was
indifferent. That is too mild a term; I must have been a com-
pound of a mole and a mule. He sighed and gave it up. That I
then made the mistake of my life I did not perceive until years after-
ward, too late to repair the loss. Now, by way of atonement, I in-
* In 1844 and 1845 Agassiz published two short papers upon the brains of
fishes; in “ A Journey in Brazil,” p. 244, note, he deplores the loss, in a storm,
of a lot of brain preparations in a cask that had been left on deck. In the last
but one of the twenty lectures given at Cornell University, he said, “ The brain
is the organ that determines the rank of animals.”
WHAT WE OWE TO AGASSIZ 19
sist that the objective study of the brain should begin in the primary
school,*° and I look forward—however undeservedly—to the period
when no other subject need claim my attention. At times, however, I
speculate as to what part of the nether world is paved with ignored
advice and neglected opportunities.
His helpful attitude toward prospective teachers was exhibited in
the following incidents. After my appointment to Cornell University
in October, 1867, he arranged for me to give at the Museum a course
of six “ University Lectures,” and warned me to prepare for them care-
fully because he should give me a “raking down.” He attended them
all (at what interruption of his own work I realize better now) and
discussed them and my methods very frankly with me.
A year later, while at Ithaca, he attended several of my lectures
upon physiology, although they broke up his forenoons and the subject
did not interest him particularly. After one he expressed his approval
of its simplicity and the absence of hifalutin,** and advised me to
counteract the effect of lecturing by investigation. Another lecture
dealt with the structure and functions of the heart, for the illustration
of which we had excellent charts and models although not, at that time,
any actual specimens. I believed that I had done very well, and
accompanied him down the hill toward his hotel in the hope that he
would say something complimentary. All he said was, “ After lec-
turing upon a subject I have found it a good plan to go to work and
study it some more.” Then he began to talk of the glacial scratches
upon a big rock that we passed. The justice of his criticism was equal
to the delicacy of its conveyance.
The work done by me here in 1871-3 upon the brains and embryos
of domesticated animals has been referred to already as one of the
indirect benefits conferred by Agassiz upon this university. His satis-
faction with the results evidently led him to make a most honorable
overture and invitation. On the seventeenth of November, 1872, he
wrote a letter beginning: “I wish I could have you permanently in
Cambridge as professor in connection with the Museum and the Uni-
versity. The first thing to know is whether such a plan would suit
you and under what conditions you could accept a proposition, etc.”
The matter was discussed at more length in letters dated December
7, 1872, and September 10, 1873. It has never been mentioned before
by me, but there seems to be no longer reason for reticence.
The second letter contained also the invitation to be one of the
instructors at the summer school already mentioned on p. 12. He
* Upon this point see my papers in Science, December 17, 1897, p. 903, and
May 26, 1905, p. 814.
“This, the only approach to slang that I recall from his lips, doubtless
referred to my introduction of a somewhat far-fetched quotation from Shake-
speare in an address before the Harvard Natural History Society, reproduced
in the American Naturalist, Vol. L., p. 421; it was my first and last transgres-
sion of the kind.
20 POPULAR SCIENCE MONTHLY
wrote: “Among my plans is a course of practical instruction in
Natural History at the seashore, during the summer months, chiefly
with the view of preparing teachers to introduce Natural History into
our schools. . . .”
In the two cases just mentioned it may be said that the advantage
was mutual although mine much more than his. But in the following
instance his words and deeds can bear no other interpretation than
disinterested willingness to aid another at his own inconvenience.
In preparing for a course of lectures before the Lowell Institute
I wished to dissect the limbs of certain rare animals which we could
neither collect nor afford to buy. On making my wants known to him
he promptly took a knife, went with me to the museum store-rooms,
and with his own hands cut an arm and a leg from each of several
precious specimens. In thanking him I said J had reason to believe
that the invitation to give the course was due largely to his having
taken the trouble to commend me to the curator; and that I wished he
would let me make return by doing some work for him without com-
pensation. He replied, emphatically, “I could not think of it; it is
my business to help young men.”
In Agassiz were combined five qualities, not uncommon singly or
even by twos and threes, but rarely so completely united or so highly
developed in one personality, viz., attractiveness, eloquence, strength,
energy and helpfulness. As distinguished from Napoleon, from Bis-
marck, from Goethe, and even from Washington and Abraham Lincoln,
Agassiz was at once fascinating, persuasive, powerful, active and up-
lifting. Under my personal observation have come but two others
comparable with him in this most potent combination of great qualities,
viz., Henry Ward Beecher and Phillips Brooks. They were preachers;
so was he. They based their ministrations upon what they regarded
as the Word of God; he drew his texts from what, with equal faith,
he held to be the works of a Divine Creator. They were also alike
in this; never was voice or hand raised otherwise than for the better-
ment of mankind.
On returning from Penikese in the fall of 1873 I went to the mu-
seum to arrange some specimens, when he came in and reproached me
for not letting him know I was there. I explained that I knew he
was tired and ill and that I would not take his time. He replied,
“ Doctor, you are always kind,” and those last words have been trea-
sured as a benediction. This coming fifth of September it will be
thirty-four years since I beheld my teacher, friend and benefactor in
the flesh, but in my mind’s eye his image will never fade. Take him
for all in all I ne’er shall look upon his like again. Would that it
might be justly said of all great men, as I now say of Agassiz: The
sun shone brighter at his birth, and shadowed when he died.
THE DEVELOPMENT OF TELEPHONE SERVICE 21
NOTES ON THE DEVELOPMENT OF TELEPHONE SERVICE
By FRED DELAND
PITTSBURGH, PA.
X. Earty AERIAL TELEPHONE CABLES
ROBABLY John I. Sabin was the first telephone man to use an
aerial cable. In connecting his line in San Francisco in 1879,
he did not run his circuits into a cupola, as was then the fashion, but
employed several lengths of a special cable made by Eugene F. Phillips,
of Providence. This cable was composed of forty No. 20 soft drawn
copper wires, double braided with cotton, then double wrapped in
reverse order with rubber paper, the whole being wound with a cotton
or jute covering. It cost 20 cents a foot at the factory. It was sus-
pended by using long canvas slings about two feet apart and attached
to two heavy iron wires.
In referring to the growth in overhead circuits, Mr. Phillips stated
that:
The natural increase in the number of aerial wires created a demand for
better insulation and grouping in cables. Hundreds of miles of No. 12 iron wire
were braided and dipped in suitable compound for this use. The annoyance from
induction soon made a call for anti-induction cable. This want was supplied by
a tin-foil cable so called, in which each conductor, after being insulated, was
enclosed in a strip of this tin-foil. Cotton-covered wires to the extent of 50 or
100 were cabled together, and after being saturated with paraffine were placed in
a lead pipe. This style of aerial cable, although quite satisfactory, has to a
great extent been replaced by the paper-insulation underground cable of the
present day.
Aerial cables were in use in New York City late in 1879, and before
the close of 1880 a total of over 75,000 feet was in use in the city and
on the Brooklyn Bridge, principally of ten-conductor capacity. In
September, 1880, C. E. Chinnock told the delegates to the first tele-
phone convention:
We have over the East River bridge at the present time, four cables, 3,800 feet
long, each cable with seven conductors, These cables have taken the place of
cables that were previously there with the ordinary kerite and gutta-percha
insulation. In using the cables and talking on one wire, you could hear what-
ever was said on another wire, and by wrapping each conductor with lead and
grounding at intervals, all of the escape and all induction were completely
eliminated. These cables have been in use, two of them for six months, and one
for nine months, and are now working perfectly.
In May, 1880, W. D. Sargent used a lead-covered aerial cable to
connect two exchanges in Philadelphia. This cable was made by
David Brooks, Jr., son of the inventor of the Brooks cable. It was
22 POPULAR SCIENCE MONTHLY
composed of 42 twisted pairs of No. 18 cotton-covered wires, which
were wrapped together and drawn into a lead pipe one inch in diameter.
Then a mixture of melted paraffine and rosin was poured into the pipe,
the whole forming a solid mass on cooling. This cable was about
600 feet in length and was suspended from three heavy iron wires by
loops made of No. 14 iron wire.
At one of the telephone conventions C. N. Fay stated that
the use of cables for telephone purposes in Chicago began in 1879, when a 50-
wire Brooks oil-pipe cable, 925 feet long, was placed in the Washington Street
tunnel under the bed of the Chicago River. The conductors were made of No. 20
copper wire, insulated with cotton, and drawn through an iron gas-pipe pre-
viously polished smooth on the inside. The ends of the pipe were elevated, and
upon each end was placed a reservoir capable of holding three or four gallons
of paraffine oil. After the pipe was put in place, the cable was drawn through.
Paraffine oil was then poured into the reservoirs until the pipe was filled from
end to end and both reservoirs were full, when the caps were screwed on and the
whole made tight. There was a loss of oil from evaporation and leakage through
the pipe, requiring a refilling about once in six months. In 1880, a 75-pair
cable of similar construction, 450 feet long, was placed in the LaSalle Street
tunnel under the Chicago River; another one being placed in the spring of 1881.
In 1884, all the oil-pipe cables were in good and satisfactory working condition.
... The first aerial cable was put up in Chicago in September, 1852, and was a
50-pair Patterson cable 1,350 feet long.
Six Brooks oil-pipe cables were in use early in 1880 in Milwaukee.
Each cable was about five hundred feet in length and composed of fifty
single conductors, and all were considered “ very satisfactory.”
It is of historical interest to note that in April, 1843, S. F. B. Morse
detailed to the Secretary of the Treasury the specifications under which
forty miles of a four-conductor lead-covered cable would be made.
Each wire was to be
once covered with cotton thread, to receive two coatings of shellac varnish; then
wound with a different colored twine to designate, in case of necessity, any par-
ticular wire in any part of the course. The four lengths are then laid side by
side and bound together in a single cord by another winding of cotton twine.
The conductors thus prepared are ready to be introduced into the lead pipe.
XI. Forctinc TELEPHONE WIRES UNDERGROUND
When the underground question first came up, the leading telephone
companies made it clear to the authorities of the respective municipali-
ties, that any hesitancy in removing overhead wires and placing them
underground was not due to an unwillingness to make the additional
and very large investment necessary, but to contending with obstacles
that then appeared insurmountable. There was no practical under-
ground system suitable for telephone distribution in American cities.
Several experimental systems were being. promoted, but all appeared to
possess little practical value. One promoter laid a half-mile of his
pipe underground and then invited a large number of telephone, tele-
THE DEVELOPMENT OF TELEPHONE SERVICE 23
graph and electric-light men to thoroughly inspect the condition of
pipes and wires. Following this inspection came a banquet of nine
courses, at which eight different wines were served to more than a hun-
dred guests. Referring to proposed drastic legislative action to force
the wires underground, David Brooks wrote on March 13, 1882:
I have every reason to believe that the great quantity of poles and wires
that are now so objectionable in our streets may be dispensed with in the future,
and while the company is so earnestly engaged in testing this problem of under-
ground wires, I can see no good result to be obtained by the passage of these
bills. It will be to their interest to make an underground system whenever it is
practicable.
The attitude of the parent Bell company on the underground ques-
tion is shown in President Forbes’ annual report dated March 18,
1882, in which he states that
our experiments in underground cables, while not as successful as we had hoped,
have given sufficient promise of satisfactory results to warrant us in under-
taking at considerable expense to test the different methods. With this object,
we have asked permission to put down cables in Boston, and, as soon as the
needed consent is obtained, we propose to make careful and thorough practical
tests of the best systems offered. . . . The cost of replacing an extensive over-
head system in a large city is so serious that it can not be hastily decided upon;
yet, if the wires can be laid underground and made to work rightly, at a cost
which will not be prohibitory, it is hoped that the service will be better than
now, and the cost of operating less than by overhead wires.
The first Morse telegraph patent of June 20, 1840, refers to the
wires being laid underground, and a portion of his first telegraph line
was buried, but proved inoperative, while on a section built with the
aid of cattle-horns used to support the line on and insulate it from a
stone viaduct, good service was secured. But the first American patent
for underground lines was issued in 1869, and it was the only one
issued until 1873, when two more were issued. A total of twenty-one
patents were issued prior to 1880, when, in that year, seventeen were
issued, and twenty-eight in 1881. Aerial as well as underground con-
duits, evidently based on the old Graves method of 1858, or the Carter
of 1875, were also suggested as a remedy for the multiplicity of over-
head wires, and elaborate systems supported upon iron posts or columns
erected either on one side of a street or overarching the roadway and
supporting the wires in the center were made, upon paper, to appear
very attractive, and earnestly advocated as a practical public improve-
ment. In fact, the opinion was expressed at the third telephone con-
vention held at Saratoga Springs, that
with a light and ornamental aerial cable support the requirements of the public
could be satistied and the introduction of subterranean wires obviated entirely
or confined wholly to important trunk routes. ... The Scott elevated wire-way
system consists of cupolas located upon housetops, separated at any convenient
distance and connected by a suitable tube, through which wires to the number
of two or three hundred are drawn and properly connected at the cupolas. The
24 POPULAR SCIENCE MONTHLY
tube is preferably made of rubber and braided fabric upon a spiral foundation
of wire, by which the tube retains its circular form. The tube is suspended
from a supporting wire of sufficient strength to stand the strain of severe wind
and the weight of accumulated ice and snow. The wires, which may be either
well insulated or even the ordinary braided or double-wound wire, can be drawn
in singly or in groups and connections made at the cupolas. The tube, being
impervious to moisture, the channel inside will remain perfectly dry. Since
the last report of the committee, it has been introduced on a limited scale in the
city of Boston and it will soon be extended.
While no underground system satisfactory to telephone men was
available in 1880-3, a few wires had been laid underground and some
experience of an expensive character gained. For instance, the Western
Union carried out some costly experiments with underground wires in
New York City during the four years, 1876-80. In 1876, two 4-inch
iron pipes were laid from the main office to Pier 18, a distance of one
third of a mile. In each pipe
was placed a cable of sixty conductors, the wires insulated with gutta-percha,
and wound separately with a layer of tarred tape, the whole covered with a
double layer of heavy tape tarred and run through sand to prevent sticking to
the pipes.
These cables were connected to the submarine cables running to Jersey
City. In 1876, a 12-conductor cable about 2,200 feet in length was
laid between the main office, 195 Broadway, and the branch office on
Broad Street. Owing to the proximity of steam pipes and the de-
structive effect of gas on the insulation, these cables were short-lived.
In 1880, a new 28-conductor cable was laid between the same offices.
Before the end of 1882, eleven of the conductors were useless. In
May, 1882, sixty circuits were laid between 195 Broadway and 134
Pearl Street, only to be abandoned within a year, every circuit having
failed within seven months. On November 28, 1888, it was stated
that the result of the Western Union
experiments during the past twelve years proves that there is no form of under-
ground cable and conduit which can be depended upon to give more than four or
five years’ service under the most favorable circumstances.
In 1878, John P. Barrett, superintendent of the city telegraph
system, placed the fire-alarm and police signal wires underground for
a distance of 840 feet on a handsome residence street in Chicago.
Two-inch iron pipe, the interior of which was heavily coated with tar,
was laid underground and into this pipe two kerite insulated wires were
drawn. ‘Ten years later it was stated that these wires had given no
trouble and were in ‘ practically as good a condition to-day as when so
placed.’
Submarine telegraph cables were in use thirty years before the first
telephone exchange was opened. Referring to the first one used in this
country, Henry A. Reed said:
This cable was of No. 9 iron wire, insulated to the thickness of half an inch
and was made in 1847 by Stephen Armstrong in Brooklyn, N. Y. It was laid
THE DEVELOPMENT OF TELEPHONE SERVICE ~— 25
across the North River at about Fort Lee. It only worked a few days when it
was dragged out of place by a ship’s anchor. The first iron-armored cable was
made by S. C. Bishop in 1852, and was used across the North River, above Cold
Spring. This cable was of No. 14 copper wire with an insulation the size of
No. 0, protected by jute and armored with iron wire about No. 8.
Submarine telephone cables were used in 1879 by several companies
in crossing rivers and bays, notably in Chicago and Milwaukee, and
Patterson telephone cables were placed in the Washington Street tunnel
crossing under the Chicago River, in 1879, as previously stated. But
probably the first telephone cables that formed a part of a regular
underground system were laid in Pittsburg in 1881, by Henry Metzger.
Three lead-covered cables were laid on Fifth Avenue between the ex-
change and a distributing pole, about a thousand feet distant. The
cables were composed of 50 single conductors of No. 26 copper wire,
and were placed in a wooden box, 6 x 8 inches, made of one-inch plank,
that was then filled with asphalt and laid inside the curb below the
frost line. No manholes were used, but connecting wires were spliced
with a T-joint. In June, 1882, Mr. Metzger laid eight more Patterson
cables underground, the longest being 2,200 feet in length, composed
of No. 18 B. & S. single copper wires. These cables gave good service
for a number of years. That same year, 1882, the New England Tele-
phone and Telegraph Company laid two Patterson 50-pair cables in
Boston, for’ metallic circuit service. The lead-covered cables were
drawn in iron pipes laid in cement. One cable was 1,200 feet and the
other 1,485 feet in length; both were composed of No. 22 wire, cotton
covered. One was laid in Pearl Street in October, the other in
Franklin Street in November, 1882.
On May 20, 1882, Professor Chas. R. Cross, in considering the
various electrical problems involved in the introduction of underground
telephone cables wrote:
In the first place it should be remembered that the number of wires in for-
eign cities is probably not more than one fifth as great as in American cities of
equal size. Thus in Bruges, Belgium, a city of 50,000 inhabitants, there is but
one telegraph office, that at the railway station; in Ghent, with 120,000 inhabit-
ants, there is but one telegraph office; in Antwerp, with its enormous commerce,
there are but two, one being at the railway station; and in Brussels proper,
only one office except at the railroad stations.
In London and Paris almost all messages are sent from the outlying offices
to the central telegraph office by means of pneumatic tubes, and the telegraphic
despatches sent from there. From these facts it will be seen that the absolute
number of underground wires in foreign cities is much less than is popularly
supposed. Contrast in this respect Boston and suburbs, with 377,000 inhabitants
and forty-nine telegraph offices, and Brussels and suburbs with 315,000 inhabit-
ants, and eight or at most ten offices.
In April, 1882, thirty-eight sections of a lead-encased telephone
cable were laid underground between the two tracks of the Boston &
Providence Railroad extending from the depot in Attleboro to West
26 POPULAR SCIENCE MONTHLY
Mansfield, a distance of about five miles. The cable was made by
Eugene F. Phillips in sections of five hundred and thirty feet, and con-
nected by means of junction boxes, and he gave the readers of the
Electrical World (March 4, 1899), an interesting account of the man-
ner in which the cable was laid. In part, Mr. Phillips said:
In 1882 the American Bell Telephone Company, wishing to make some prac-
tical experiments on telephonic transmission with underground wires, ordered
of us a cable to be 5 miles in length, containing twenty-one wires of No. 20
B. & S. gauge, a majority of which were to be insulated with rubber and the
balance braided with cotton and paraffined; part of the conductors to be covered
with tinfoil, and part twisted in pairs for metallic circuit; also a single con-
ductor of No. 13 B. & S. gauge braided and paraffined. We believe this was
the first underground experiment made for the American Bell Telephone Com-
pany, and the laying of this cable was a red letter day for us. The American
Bell sent an engine and one open-end freight box car, which carried the 5 miles
of cable we had already made to Attleboro, as well as fifty men for a working
force. In laying this cable a trench was started by means of pick and shovel,
but it was soon found the hard roadbed was by no means easy digging. A plow
was borrowed of one of the farmers and attached to the outrigger from the truck
of a car, pulled by an engine. As we were unable to hire oxen or horses to plow
with, this idea was suggested by W. H. Sawyer, and it made a fine specimen of
plowing, the like of which was probably never before witnessed. When the
trench was completed, two plows had actually been consumed in the process.
The cable was placed at the end of the car and paid out into the trench as the
car moved along, and close behind the plow in the furrow. The filling of the
trench was also another great conundrum; the gang started with shovels and
hoes to do this, but it at once became evident that it would be a week’s work
with the force at command. Again Sawyer’s inventive genius came to the rescue.
At his suggestion a joist was procured, and one end lashed to the cowcatcher of
the engine, the other end extending out over the trench on the side where the
dirt had been thrown. The engine was started, and the entire length of the
trench and cable was soon covered, much to the pleasure and satisfaction
of those looking on as well as those responsible for the filling.
Notwithstanding that prior to 1890 no underground system proved
satisfactory from a telephone engineer’s point of view, yet the rapidity
with which the telephone companies responded to the public demand
that the wires be placed underground is apparent from the fact that
while the underground movement started in 1881, at the close of 1884
there were 1,225 miles of wire underground, and ten years after the
first telephone cables were placed underground, over 70,000 miles of
wires were in subterranean ducts. To-day over one half of the total
mileage of telephone circuits in use by Bell subscribers is underground,
that is, nearly three million miles of copper wire are buried in the earth.
XII. Tue Errecr oF Evecrric Street LIGHTING ON TELEPHONE
SERVICE
While an inability to dispose of the securities of the local com-
panies retarded the growth in subscribers in many exchanges, in 1883-5,
other causes were also hindering the expansion of the telephone in-
THE DEVELOPMENT OF TELEPHONE SERVICE 27
dustry. One cause was the rapid introduction of electric-light circuits,
so poorly insulated as to sadly interfere with good telephone service
and necessitating the rearrangement or reconstruction of many tele-
phone circuits. As already stated, the first street lighting occurred in
Cleveland in April, 1879, with Brush arc lamps. In San Francisco
the Western Electric Light Company was organized by G. S. Ladd, and
on February 6, 1879, was supplying current for private service accord-
ing to The Bulletin, which said:
Yesterday the Western Electric Light Company made connection with the Gold
& Stock Telegraph Company, and now all the electricity used in running their
stock indicators throughout the city is supplied from the Gramme machines,
thus doing away with five hundred cups, which heretofore composed their battery.
It is stated that arc lamps were in service in San Francisco in October,
1879, the rate then charged being $10 a week when burning from dark
till midnight.
It was fortunate for the continued broadening of the telephone
industry that it got a strong foothold before the parent electric-light
companies began to devote their energies to belittling each others
machinery and motives, or to determine whether it was wiser “to
advocate the use of sixteen small single light are machines, with their
costly system of conductors, or one sixteen-light are dynamo,” in-
stead of perfecting the insulation on pole line circuits, even if they
did not increase the efficiency of their apparatus. Otherwise the elec-
tric transmission of speech might have had a different growth recorded.
For the character of the crude and cheap telephone construction preva-
lent in 1878-80 would not have been tolerated by the public in 1882-3,
by reason of the number of violent deaths resulting from accidental
contact with live wires, deplorable accidents that started a rabid agita-
tion in favor of placing all wires underground. No underground
system suitable for telephone circuits was then in existence, and had
one been available, the heavy initial cost of installation would probably
have deterred many investors from entering the telephone field under
such unpromising conditions.
In New York state alone more than a hundred electric-lighting
companies, having an average authorized capitalization exceeding
a million dollars each, were incorporated before the close of 1883.
And as the electric lighting industry was raw and untried, as suitable
or even satisfactory line insulation had yet to be devised and tested,
and as competition among electric-light companies in many sections
was destructively fierce, it is needless to say that the unsafe con-
struction of the average competing electric-light company was such
a menace to the satisfactory continuity of telephone service that
telephone managers were compelled to forego making verbal or writ-
ten indignant protests, and to devote every moment of time to de
vising methods and means for protecting their equipment from the
28 POPULAR SCIENCE MONTHLY
destructive effects of stray currents. Even then, imperfect protection
resulted in the complete or partial destruction of several telephone
exchanges. Following the destruction of one exchange, Mr. A. 8. Hib-
bard suggested that in view of the delay in getting large switchboards
in emergencies, it would be a wise thing in the way of insurance, if a
number of telephone companies would jointly buy a complete central
office equipment, to be built and held in convenient storage, with the
understanding that it should go to the first company whose exchange
was burned, and that.that company would pay its cost price or replace
it with new equipment.
Referring to the introduction of electric-light circuits, Mr. W. J.
Denver told the members of the Boston Electric Club:
I remember the first time the are lights were exhibited in my native city,
and what a tumult was caused at the telephone office. An electric light circuit
was strung, using the ground for a return and four or five lights were placed
upon it. Immediately on the starting of the dynamo, up went the lights and
down went the switchboard drops, and the confusion of tongues consequent upon
the building of the tower of Babel was as the stillness of death compared to the
racket on the telephone wires. . . . The remedy was evident; double the light
circuit, which was done the next day.
When the electric-light industry started, the electric lighting fra-
ternity turned to the telegraphers for assistance and advice, just as the
telephone men did. But the electric-light men also had the advantage
of the experience gained by telephone men in building local circuits.
It is written that the first electric-light switching devices were derived
from the telegraph switch, only enlarged to accommodate the greater
volume of current. The strap key, the telegraph key and the switch-
board plug were all utilized in central-station electric lighting, and the
arc that formed between the terminals following the withdrawal of the
plugs was usually blown out with the breath, or whipped out with a
cloth, or extinguished with a handful of sand.
In other words, the same degree of crudeness was just as strongly
in evidence in primitive electric-light plants as in the pioneer telephone
exchanges. And, as one writer stated it in 1882,
there are electric-light charlatans as well as medical quacks, charlatans totally
ignorant of the electrical laws, and with no experience in electric lighting.
One point worthy of note is that the telephone engineer soon found
that he must not only be able to solve telephone problems, but must
also be thoroughly conversant with every phase of electric lighting,
and then of electric power and of electric traction that was in any
manner likely to have a bearing on or to influence the character of tele-
phone service. Thus, as the editor of The Electrical World has so
concisely stated:
In the telephonic engineering done by Carty and his colleagues there is no par-
allel whatsoever to be found in any other branch of electrical engineering.
RAVAR 4.
oo*“PHEY GREAT JAPANESE VOLCANO ASO 29
ie to) Sa
oe ae g OA
g.. aU RNS
ae ox t
&- i oo Me et at
‘oa beg
* ‘inne GREAT JAPANESE VOLCANO ASO
By ROBERT ANDERSON
WASHINGTON, D. C.
SO-SAN, or Mount Aso, is a living volcano in the heart of the
island Kiushiu, Japan, whose peaks rise to a height of several
thousand feet out of a gigantic bowl. This bowl, which is many
miles across, is an ancient crater surpassing in size all other known
craters nearer than the moon. Some 5,000 people, grouped in half
a hundred villages on the old floor, are living to-day, tilling the vol-
canic soil and trading in this vast crater, round about the base of the
new and ever-active cone that has risen in it.
Kiushiu is the most southern of the four main islands in the
Japanese archipelago. It is about 17,000 square miles in extent and
is therefore larger than Vancouver Island, or almost equal in area
to Massachusetts and New Hampshire combined. It is built up of
very ancient rocks, both sedimentary and igneous, belonging to the
paleozoic and mesozoic eras, as well as of younger rocks, and upon
these as a foundation has been erected in more recent times, partly
during the age of man, a superstructure of volcanic materials which
now covers many thousand square miles, or about one half the area
of the island. It contains twenty volcanoes, counting two that are
just off the coast to the south, of which eight are now active. Among
them Aso-san is on far the largest scale, though now it is in a decadent
stage and is surpassed in activity by two or more of the others. Japan
through all past ages has been a land of extraordinary geological
activity, possessed of a vital energy which, continuing in force up
to modern times, has been emphasized by the changes in level of its
coasts and heralded by its ever-vigorous volcanoes. It is far from
being a land solely of volcanoes and volcanic formations, as is some-
times thought, for these assume insignificance when compared with
the wide areas and great thicknesses of strata that are representative
of almost every stage of the geological column. But that it is a
country of great volcanoes there can be no doubt. They have flourished
ever since the beginning of its geological history and to-day there are
164 independent volcanic cones, or colonies of related cones, scattered
through the Japanese islands, including the Kuriles and the Liu Kiu
chains. Of this number 54 are now actively grumbling and nursing
their wrath and occasionally losing all control. Fuji-san and Aso-san
are the kings, although others surpass them in destructive activity.
The first is famed for the height and regularity of its cone as one
among the preeminently symmetrical and beautiful volcanoes of the
30 POPULAR SCIENCE MONTHLY
world. The other is almost unknown except among the Japanese,
although its immense crater is the largest of all that have yet been
found on this globe.
The center of Kiushiu is about 600 miles distant from Yokohama
and Tokio by the ordinary routes of travel, and by far the best way
to reach Aso-san is from Nagasaki, whence one of two routes may be
followed—either far around from the peninsula on which Nagasaki is
situated, a distance of 150 miles by railroad to Kumamoto, a city on
the west coast of Kiushiu, within 25 miles of the voleano, or most
of the way by sea, a distance of 75 miles to the same city.
The pilgrim or traveler who mounts to the walls of the castle of
Kumamoto and looks eastward over the green and gardened city and
over the rich plain bordering the bay of Shimabara, off to the moun-
tains that form the backbone of the island, sees the massive, sacred,
god-mountain Aso above a long blue chain. A thrill passes through
him as he sees a white cloud streamer waft horizontally across the grey
clouds around the summit or, rolling into a ball, float upward lke a
thistle-down. The white cloud is soon dissipated, but another born
from the mountain takes its place as soon, and one knows that here
is a volcano, that the god of the mountain is alive. Hundreds of
Japanese visit Aso-san every year to pay their homage to the deity that
the mountain represents, but only rarely has it been visited by
foreigners.*
During the spring of 1905 the writer and his brother, Malcolm
Anderson, and their friend, Kiyoshi Kanai, spent several weeks in the
vicinity of Aso-san, staying for many days in one of the villages in
‘the old crater, living in native Japanese fashion and coming in touch
with the spirit of the people and the natural history of the region.
The way from the west coast to the mountain lies across the Kumamoto
plain among little open fields that in the spring are richly colored with
deep green wheat and yellow mustard, along a broad avenue eighty
feet wide marshaled by stately cryptomeria trees whose handsome
bark and foliage remind one of their big cousins—the California
redwoods. Beyond the village of Seta at the edge of the lowland,
some 13 miles from Kumamoto, one is led up into the mountains by
a gentle ascent, the volcano itself being all this time hidden by the
intervening slopes. But a backward view reveals the lesser volcano
Kimbo-san rising as an independent cone near the sea, and if the
day affords one of the clear Japanese skies, which unfortunately are
only too rare but which are so beautiful when they come, one sees the
The only mention of Aso and its crater that the writer knows of is in an
article by the geologist, John Milne, in The Popular Science Review, New Series,
Vol. IV., No. 16, October, 1880, and in Murray’s ‘Handbook for Japan,’ by
Chamberlain and Mason.- The former is an English periodical that has long
since ceased publication.
THE GREAT JAPANESE VOLCANO ASO 31
great destructive volcano Unzen-dake springing up to nearly 5,000
feet on the peninsula of Shimabara over across the gulf. One travels
to Aso-san as one chooses, either on foot, in a jinrikisha, or in the
funny little perambulating dry-goods box known as a basha, the Japa-
nese adaptation of the English stagecoach. We preferred to walk,
and upon leaving the plain we enjoyed many picturesque miles up the
cascading stream Shirakawa. For the first night out from Kumamoto we
stopped at a modest little inn, being driven by a pouring rain to take
shelter at the hamlet of Tateno, which is perched high up on the side
of the canyon that the road follows, at an elevation of about 1,200 feet
above the sea. From there on the canyon of the Shirakawa becomes
more precipitous in outline, and a short tramp in the early morning
along the mountain slopes above it brought us to its brink at a point
where it forked and cut squarely across our path. Here, pillared walls
formed of roughly columnar lava, through which the stream has cut
a grand gorge, drop sheer several hundred feet, and the path descends
a zigzag course to their foot, where the two forks toss into one stream
over a boulder-strewn bed. Near here a hot saline spring surrounded
by the hamlet of Tochinoki, where many bathers come, give the first
evidence of the proximity of the volcanic center.
Whichever of the two forking streams one follows, one presently
comes up upon a broad plain that is surrounded by heights on every
side and that curves around in the form of a great crescent. But,
instead of ordinary mountains, the outer convex curve of the crescent
is ringed about with an even-topped wall rising on the average about
1,500 feet, while the concave side is bordered by a great rugged moun-
tain mass attaining a height of over 4,000 feet above the plain. The
configuration of the region is absolutely unique and one is at a loss to
understand its significance until later on, climbing the mountains and
gaining expansive views over the whole broad domain of Aso. The
truth is this: That a vast oval crater basin occupies the region, but
is divided in two by a range of mountains that has risen across its
center diametrically. The two portions of the crater thus cut off are
the two crescent-shaped plains, whose level bottoms are formed by the
old crater floor, whose outer surrounding walls are its rim, while the
inner side of each is walled in by the great dividing range. There
is but one opening in the ramparts hemming in these basins. It is
where the western end of the central range meets the bounding wall.
Each of the two halves of the crater is drained by a stream, and these
small rivers uniting around the base of the central range at this
western end, flow through the common outlet—the grand gateway
through which we made our entrance. It is 10 miles across the
crater from west to east in the diameter occupied by the dividing
mountain ridge, while from wall to wall from south to north it is
14 miles. These figures, it must be stated, are only estimates, but a
32 POPULAR SCIENCE MONTHLY
number have agreed that they are approximately correct. The oval
area occupied by this volcanic bowl is thus over 100 square miles, an
area half as large again as the District of Columbia.
The crater of Aso is both for size and structure unique among the
craters of the world. The Hawaiian volcanoes, with which Aso shows
the most resemblance, are of greater bulk, but their craters, which are
usually spoken of as the largest in the world, can not compare in
size with that of Aso. The crater of Haleakala, according to Dana, is
%14 by 214 miles in dimensions, and covers some 16 square miles.
It has a greatest depth of 2,500 feet. The Kilauea crater, Dutton
gives as 314 miles long by 214 miles wide and from 300 to 700 feet
deep. The crater of Mauna Loa was measured by Alexander as 314
by 184 miles in dimensions, with an area of 344 square miles. The
islands of Santorin south of Greece in the Mediterranean preserve the
remains of a crater 18 miles in circumference, and Pantellaria, between
Sicily and Africa, one with dimensions of 8 miles by 6. The two
Italian crater lakes, Bolsena and Bracciano, are of great size; the one
is oval with a long diameter of 9 and a short diameter of 714 miles,
and the other is a circle 6 miles wide. The crater of the volcano
Palandoékan in Armenia is said by Bonney to be 6 miles in width.
Among the volcanoes of the Canary Islands, Scrope mentions the
cirque of Teneriffe, which contains a pit 2,000 feet deep and a high
peak within it, as being 8 miles long by 6 miles wide, and Bonney the
crater on the island of Palma as 9 miles in diameter. A crater on
Mauritius is said by Dana to have a longest diameter of 13 miles.
Among the great volcanoes of Java, according to Scrope, Papandyang
has a crater with measurements of 15 by 6 miles, and Bromo one with
diameter of 4 or 5 miles. Crater Lake in Oregon, described by Diller,
is one of the most perfect. This nearly round pit is 4 or 5 by 6 miles
in dimensions and has a depth of 4,000 feet. But Aso surpasses them
all, with a crater equaling 2 or 3 times the combined volumes of the
three great Hawaiian craters mentioned.
The journey over the old floor in the midst of such novel surround-
ings is a unique and pleasing one, but the stupendousness of the scene
comes over one more strongly when he looks down upon it later from
above. Our little party chose the southern of the two forks and fol-
lowed it up for mile after mile along its gentle upper course. The
distances proved elusive. We looked across the plain to the wall on
the other side and it was only a little way, but still as we went the goal
seemed no nearer. The ascent from the point of outlet of the streams
is at first rather steep. Within about a mile, however, the fork that
we followed bursts off the level of the crater floor in a picturesque
waterfall. It is called by the Japanese Aigaeri, or “trout-return,” for
beyond this the fish can ascend the stream no farther. The view
upward to the mountains surrounding the plain on all sides is mag-
THE GREAT JAPANESE VOLCANO ASO 33
UNCEMENTED MASONRY WALLS,
Fic.1. THE CASTLE AT KUMAMOTO WITH ITS STRONG,
The
BUILT THREE CENTURIES AGO. This style of construction requires a slope to the walls.
author and his brother ran a race to their top and found it quite possible to scale them. The
superstructure of the castle was almost destroyed during the Satsuma rebellion in 1877. The
view of Aso from the single remaining turret is magnificent.
ASO RANGE.
Fic. 2. Hor SPRINGS AT YUNATANI NEAR THE WESTERN END OF THE
There is a small geyser here that spouts out boiling water and red mud.
VOL, LXXI.—3
34 POPULAR SCIENCE MONTHLY
Fic. 3. PANORAMIC VIEW OF THE HIGHEST PORTION OF THE RANGE IN THE CENTER OF
the highest peak of Aso-san. On the right is Neko-dake. Photo by Malcolm Anderson.
nificent as one journeys on over the gently rolling surface of the
basin floor. To the southwest the ring wall, elsewhere comparatively
level-topped, rises up into mountain peaks that are between 2,500 and
3,000 feet higher than the level of the plain. ‘To the north and north-
east run the mountains that form the barrier between the two halves
of the crater. They make up one massive, rugged ridge whose sum-
mit is broken by several dominating peaks. It is this range or ridge
that is named Aso-san. On the summit, but at the foot of the highest
peaks, at a point about half way from end to end of the Aso ridge,
is situated the modern active crater from which rose the cloud that
we saw from Kumamoto. A view of the rising steam puffs is again
obtained as one comes out into the widening plain above the waterfall.
And as one goes farther and finally reaches the central and widest
portion the view of the Aso range, which was at first an endwise one
and eastward, opens out until one looks to the north upon it broad-
side. There are three main peaks and many minor ones, the most
striking of them being Neko-dake at the farther, eastern end. Its
slopes have the graceful curving outlines characteristic of volcanic
cones, and its summit is a jagged battlement of monumental lava pin-
nacles looking somewhat as if they might be the remnants of a shat-
tered crater. Its eastern flank drops down and ends the range by
blending with the converging outer walls of the two basins. The
next nearest peak is Taka-dake, a higher although less distinctive
summit forming the culmination of the range. It is separated from
THE GREAT JAPANESE VOLCANO ASO 35
THE CRATER, looking north across the southern half of the crater. 1n the center is Taka-dake
Neko-dake by a depression of about 2,500 feet, out of which both
mountains rise steeply. The ridge almost loses its continuity in this
depression, so that Neko-dake is left as an isolated pyramid with
truncated broken summit rising about 2,500 feet out of the highest
part of the old crater to an elevation of 4,800 above the level of the
sea. Taka-dake on the west side of the gap has an altitude of 5,600
feet above the sea, and is about 4,000 feet above the crater floor around
its base, and some 4,500 feet higher than the point where the two
streams have their outlet. On the southwest flank of Taka-dake rises
the half-dome summit of a third peak, Naka-dake, facing the southern
basin with vertical cliffs of black rock that have the appearance of being
the cross section of a lava flow. It is from a low point of the range
west of this summit that the steam cloud issues from the small
modern crater, whose cone is hidden from the southern basin by an
outstretched flank of Naka-dake. West of the new crater is another
low place which divides the highest portion of Aso from the continua-
tion westward. This gap is about equidistant from the two ends of
the range. West of it rise subordinate peaks along the ridge, which
gradually sinks lower until it comes to an end near the outlet of the
streams. The distance from west to east across the big crater of Aso
along the line occupied by the central range is about ten miles. But
following the curving course of the crescent basin it is much farther
from one side to the other. By the road through the middle of the
plain the distance is about eighteen miles. Our little party after
36 POPULAR SCIENCE MONTHLY
passing through many hamlets and villages between long rows of small
houses that line this main thoroughfare, at last, at a distance of twelve
or thirteen miles from the stream outlet, reached Takamori which
we had chosen as our goal. This is a prosperous small town with
several hundred inhabitants, the chief center for the rich agricultural
district hemmed within the volcanic heights of this southern half
of the old crater.
This whole district is one wide expanse of cultivated fields, a mosaic
of little patches differently planted, unfenced and unbounded, stretching
freely down the plain in endless kaleidoscopic variety. In the spring-
Fic. 4. LOOKING SOUTHWEST ACROSS THE FLOOR OF THE SOUTHERN HALF OF THE ASO
CRATER AT A MUCH WORN PORTION OF THE SURROUNDING WALL. The town of Takamori
shows as a spot of white in the distance on the left. bhoto by Malcolm Anderson.
time wheat and mustard, growing tall and vigorously, are the domina-
ting crops, and the rich green of the grain mingled with the brilliant
vellow of the mustard blossoms spreads a gay succession of tints over
the wide plain. Here and there a tree, or a cluster or line of trees,
for the most part dark pines cr phantom bamboo groves, give a
picturesque irregularity to the vast chess-board, standing like players
on the light squares or the dark. The villages and groups of farm-
homesteads with their conically roofed thatches appear as small as ant-
hill colonies when viewed from above from one of the innumerable
points of vantage round about, so small are they as compared with the
breadth and depth and largeness of the scene of which they are a part.
THE GRHAT JAPANESE VOLCANO_ ASO 37
On a day in April that dawned cloudless and with a frosty chill the
writer set out to reach the summit of Neko-dake, the ragged-topped
mountain at the eastern end of the Aso chain. As I went among the
little fields and along the hedgerows in the early morning, always
choosing among many paths one that seemed to lead me eastward, for
beyond Takamori no well-beaten road continues farther up the plain, I
met several people setting out also for the day. Each one of them
looked with wonder at me, a stranger, staring with curiosity but bowing
courteously in reply to a morning’s greeting. One was a man with
his faded bluish-grey kimono tucked up above his knees, leaving dis-
played a considerable expanse of underwear, his calves swaddled in blue-
canvas walking gaiters above the straw sandals on his feet, and his
shoulders wrapped in a bright red blanket—a man with the worn brown
countenance of a country traveler shaded by a sun-darkened straw hat.
He was a type of wayfarer often seen in the out-of-the-way portions of
Japan, who, touched by an expanding arc of the great wave of western-
ization, has adopted a Iudicrous cross between the native and foreign
dress, a cross that possesses all the characteristics of degeneracy from
both of the parent stocks. The next man that passed carried on his
shoulder a short wooden steel-bound mattock or hoe, such as the
peasants use in cultivating the fields, and another led a bull stout of
neck and sullen of countenance Jaden with a rough plow and other tools
for the day’s work. These men were coming from their homes out to
the particular little patches belonging to them somewhere in the plain.
It is customary for the peasants to group their houses in small colonies
and sometimes they go long distances to their work. Still another
man, who came along the path empty-handed and empty-faced and out
of work, was evidently quite resigned to the enforced leisure promising
for that day. As I went farther and the day grew the fields became
peopled here and there with men and women in small groups heartily
beginning their task of digging and planting and nursing the ground.
This is their daily occupation and so they live on peacefully, pay-
ing no heed to the filmy cloud floating over the crest of the Aso ridge,
which now disperses before the spring sun only to return, in one form
or another as a misty veil over the mountain top, a dark smoke, or a
silvery cumulus cloud standing bright on the blue sky. There is no
thought of the living force of the volcano.
The crater floor slopes upward from the outlet toward the east, and
Takamori is several hundred feet higher than the level of the floor near
the break in the walls where the streams flow out. It rises still more
beyond Takamori and breaks from a fairly even plain into undulating
hillocks which occupy the angle where the outer wall curving in con-
verges with the Aso range. In this angle I reached the base of Neko-
dake and the foot of the wall at the same time. The ascent was up a
grass-grown ridge having an even slope of thirty degrees, but becoming
38 POPULAR SCIENCE MONTHLY
narrow and ragged as it approached the rocky mountain top. At an
elevation of 4,750 feet by my barometer, just under the brow of the
summit, I caught a glimpse on approaching of what I took to be a
lonely wild cherry tree in blossom far up here alone. It proved to be
a group of bushes with their bare limbs and twigs bearing little balls of
snow, remnants of the winter.
From the mountain top a magnificent view opened and led me for
the first time to a comprehension of the structure of the region. I had
come from a deep basin on the south of the Aso range and here sud-
denly was spread out on the north its almost exact counterpart. At
about 3,000 feet below the peak on which I stood lay this other far-
reaching plain which seemed to be the continuation of the southern
one, while round its outer edge it was enclosed by a similar curving
wall. The grandeur of the scale upon which all the lines in the scene
were drawn made the outlook a most impressive one, and with the view
came a sense of the magnitude of the forces that had been at work in
molding the large details of such a landscape. The sight was such that
it carried with it at once the appreciation of these two huge bowls as
parts of a great crater, divided by a high, massive mountain partition.
This crater is almost circular in appearance. Its rim forms a
smooth sweeping curve around the whole circumference, broken only
at the cleft on the west where the streams pass out, and on the east
where it is joined by the slope of Neko-dake. The summit of this
outer wall is remarkably even and its inner side precipitous. Although
it presents rocky precipices at points on its face, its general slope is by
no means perpendicular, but, being steeper as a rule than ordinary
mountain slopes, it has a strikingly abrupt appearance. ‘This is espe-
cially true in the case of the northern basin, where the wall facing the
south is less gashed by lines of erosion, is more sheer, and has a more
perfectly preserved even summit than the wall of the southern bowl.
The latter wall is furrowed by gulches that have eaten back to the sum-
mit in places and notched the sky-line of the rim. Between these
gulches sharp ridges run out into the plain, some of them looking more
like lava flows descending from the wall than like remnants left by
erosion. Such ridges run out into the northern basin as well, and
little island-like hills rise in isolated positions from the crater floor.
This half, though a close counterpart of the other, is more nearly round
and its walls preserve a more even height. The slope up from the floor
in both basins is gentle at first at the foot of the walls and then becomes
steep. The walls are formed of roughly bedded lava flows interstrati-
fied and intermingled with mixtures of vesicular lava, scoria, pumice
and volcanic sand. The harder lava layers project with vertical rocky
faces, while between them softer zones have weathered away into débris
slopes and produced a rough terraced effect, somewhat similar to that
in the sides of the Grand Canyon of the Colorado. The height of the
THE GREAT JAPANESE VOLCANO ASO 39
walls above the level of the plain is on the average about 1,500 feet.
It decreases toward the western side owing to the gradual rise of the
floor in that direction, but increases at some points, as on the south-
west and west sides, where mountains break the continuity of the hori-
zon line.
From the brink of the wall around the whole circumference of the
big crater, a wide plateau slopes gently away at an angle of only
some five to eight degrees. One is apt to think of a crater as a
pit on the apex of a sharp conical mountain. The crater of Aso has a
cone, but its slopes are so moderate that one realizes only from a point
of comprehensive outlook that this vast open bowl lies on the summit of
a huge mound, which forms an upland of low relief in the center of
‘Koushiu.
The outward-sloping surface of this mound, as seen from above, is
like a plateau, but it is without a single level place. No surface
could be more wrinkled and still preserve the appearance of an inclined
plane. It is completely made up of knolls and ridges and knobs, which
continue off for many miles to the base of high encircling mountains.
From the summit of Neko-dake these distant mountains are seen to
surround this upland, much as the walls of the big crater surround its
floor. The hillocks of the upland are overgrown in the early spring
with long dry grass, but the cultivated bottoms between shine like
emeralds, the green of the wheat being deepened here and there by the
background of black soil upon which it grows.
From the peaks of the Aso range that divide the two well-populated
plains long flowing ridges with concave slopes reach down into the floor.
Between them are steep gorges. These ridges are not dwelt upon nor
cultivated, probably on account of the lack of water, but like the hills
of the outer plateau are grown over with rank grass. They contrast
strongly with the richly tinted sweep of the crater bottoms. Consider-
able patches of the northern plain are sometimes flooded, and there is a
legend that the big bowl of Aso was once occupied by a lake until a god
kicked the hole in the wall to let the water out and leave the ground for
cultivation. One can not but admire the conception of the ease and
despatch with which this early piece of reclamation work was carried
out.
Nearly all that has been described, and more, can be seen from the
top of Neko-dake; so much, in fact, that two or three hours spent on
the summit was all too short a time. The descent was quick down the
steep slope, but the evening homeward jaunt to Takamori was one of
many miles. The way led along a muddy black path; at first among
bare fields, where peasant women had been at work all day gathering up
corn stalks, loading them on oxen, and sending them home to be
chopped up to feed the animals; and then among the endless paddy-
fields of wheat and mustard. Finally ‘home,’ when reached, consisted
40 POPULAR. SCIENCE MONTHLY
Fic. 5, THE MODERN MUD-CONE OF ASO-SAN WITH VAPORS ISSUING FROM THE NEW
CRATER. In the foreground is a temple to the God Aso.
of a floor, a few bowls of rice, and a bath through which a dozen
men had been before.
On another day the three of us set out for the modern crater. A
walk of a few miles brought us to the village of Yoshida about opposite
the central portion of the Aso range, whence a feasible way seemed to
offer up to the low place in the range already noted. It led first over
the end of a number of low ridges that radiate into the plain from the
central mountains and then up an easy grassy slope to the top. Here
we had expected a divide that would enable us to look over into the
northern basin, but instead we found an expanse of almost level mound-
strewn country mostly enclosed by the higher portions of the summit
THE GREAT JAPANESE VOLCANO ASO 41
and so wide that it intercepted all view. The mounds covering this
upland were seemingly formed of soft voleanic débris and presented a
straggling appearance. This summit country sloped upward on the
east within less than a mile into a low cone some few hundred feet
high, from which the steam clouds poured forth. Behind it on the
southeast rose the forbidding-looking crags of Nakadake and on the
east the flanks of Taka-dake to a much greater altitude.
At the foot of the cone on the desert-looking slope stood several
huts and two small temples, one Buddhist and the other Shinto, built
in honor of the god of Aso for the use of those who climb the moun-
tain to worship. It is one of the beautiful features of the Japanese
religion as practised by a great many of the people that it draws them
out of doors and brings them in touch with nature. Almost every
mountain is held in reverence, and many days during the course of the
year are spent by the devout in excursions in the country or up into
the mountains to pray on the high places.
It is a gentle ascent of only 200 or 300 feet from the rest house and
the temples to the summit of the cone, first over a lava stream that
looks as if it might have flowed but a little while before, then over a
talus of lava, pumice and cinders, and finally over slippery, grey
volcanic mud. At the top is the crater, a black, ragged, awful pit,
roaring and steaming constantly. As one stands on the brink one
looks down walls of roughly-stratified mud to a depth of 300 or +400
feet, where two round vents are continually rolling out masses of steam
Fig 6. LOOKING DOWN INTO THE MODERN CRATER OF .4SO-SAN, showing the 10ugh layers
of mud in the walls and the bottom of one of the vents. Photo by Malcolm Anderson.
“9YVP-OFIN JO J1vd St Ia] 9G} UO puB ‘punoisa10j 94} VAOGL
409} 00OP ‘PAVp-VYABL Sf 1o}We0 oq} UL “JIULEINS OY} UO 19}V1IO MAM 94} WOTF SOSTT pnoyd 10dva ywois VY “AONVY ONIGIAT( AHL
OL tiO UALVYD OSV CIO FHL AO ATVA NUAHLUON AHL 40 UOOTT THL NO WvaULg THL Wodd LSVAHLAOS ONIMOO'T “LOTS
POPULAR SCIENCE MONTALY
42
THE GREAT JAPANESE VOLCANO ASO 43
and sulphur vapor and reverberating with explosive roars. This
little crater has an oblong shape and is at a rough estimate 900 feet
across and 2,000 feet long. Its rim is very uneven, being much
higher on the north and east than on the other sides. It is divided
into five compartments or vents, each separated from the other by a
wall of mud, 100 feet or more high. The two already mentioned are
the deepest and the only active ones, and occasionally, when the vapor
column diminishes, one can look to the bottom of the northern vent
and see the burning sulphur that plasters the lower walls and floor.
The bottom is a round flat dise of cracked mud looking like the dried
bottom of a pond, and there is no appearance of a hole or conduit
descending to greater depths. The other of the two active crater holes
is deeper and pours forth more steam. Its bottom can not be seen from
any point upon the rim. ‘The yellow sulphur fumes fill the air and
become almost unbearable at times when the wind shifts the cloud
a little towards one. We were able to follow the edge the whole way
round the crater, a distance of about one and one half miles, but the
going was difficult on account of the extremely slippery mud that forms
the outer sides, which slope sharply away from the precipice on the
interior. This soft, fine mud, both outside and inside the crater, is
furrowed by rain and given a curious appearance. The other three
vents, besides the two already mentioned, lie to the south along the
axis of the crater. They are steep-walled, but not so deep as the other
ones. ‘They have flat bottoms of cracked mud, though in one the floor
at the time of our visit was occupied by a shallow pool of water.
The view from points near the edge of the crater embraces a large
-part of the northern basin through a gap in the encircling heights on
the north. But on all the other sides the rolling summit region is
pretty well enclosed and looks a little as if it might have been at one
time ages ago the site of a crateral basin much larger than the present
active one.
At length the late hour and our extreme thirst after a warm day
without water on these dry mountains drove us down from the heights.
At the rest house by the temples we obtained a reviving drink of cold
spring water, and on the bench where we sat to drink it we left all
the change in our possession, which was a total of ten coins, amounting
to nine tenths of a cent.
During the memory of man the crater on top of the Aso range
has been active, and successive severe eruptions have again and
again blown out ashes, cinders and bombs that have darkened the sky
for many miles around and covered up the fields, have sent streams of
mud mingled with hot water flooding down the mountain sides and
over the plain, and caused terrifying noises and shakings of the ground.
At such times crops and trees have been blighted and killed by the
falling ash or by the heat and vapors, and the streams have been so
44 POPULAR SCIENCE MONTHLY
filled with débris and poisoned with bitter sulphurous water that the
fish have died. Some say that the Shirakawa, which means ‘ white
river, owes its name to the milky color that it has been known to
assume at such times. Loss of life has been occasioned by these out-
bursts, but the records do not make it clear to what extent. Reference
is made in records to fiery rocks sometimes of great size that have
been blown out, but lava flows do not seem to have assumed importance.
Explosive eruptions of fine débris, as shown by the mud cone, have
been predominant during the later history of the voleano.
Fig. 8. RECENT-LOOKING LAVA WITH SMOOTH FLOW STRUCTURE THAT HAS FLOWED DOWN
A GULLY HIGH UP ON THE SOUTH SIDE OF NAKA-DAKE. In the distance, far across the great
crater of Aso, may be faintly seen the horizon line of the outer wall. The whole foreground is
covered with barren volcanic rock.
The greatest eruptions of very recent times were in the winter of
1873 to 1874, when unusual activity continued during several months
and ashes covered the ground to a distance of 18 miles; in the winter
of 1884, when ashes were blown over Kumamoto, making it so dark
there at a distance of 25 miles that lamps had to be used for three
days; in 1889, during the year of the Kumamoto earthquake, which
was the year following the great explosions of Bandai-san in central
Japan; and lastly in 1894, when the floor of the modern crater was
somewhat altered.
The problem of old Mount Aso is a deep one. One can not view
its gigantic outlines without wondering what forces could have molded
them, what could have been the steps in the process of formation of this
huge pit, its level floor, its steep walls, the gentle slopes radiating
THE GREAT JAPANESE VOLCANO ASO 45
from its outer rim, and of the rugged mountain bulwark in its center,
on the swmmit of which the life of the volcano has been preserved in a
far smaller inner crater. It seems inconceivable that processes alone
of building-up could have resulted in such forms as those of Aso; and
in attempting to outline its history one always reverts to some theory
of destructive action on a very large scale.
The large crater of Aso may have been formed in either one of
two ways, by the blowing off and away in some cataclysmic explosion,
or series of explosions, the whole mass that must once have filled and
overlain the present cavity, or by the sinking in of this same mass and
its engulfment in a great void produced by the removal of the material
that formerly gave support to the earth’s surface at this point. A
calculation, such as given below, of the mass displaced in either case
affords an impressive sense of the magnitude of the task that was
accomplished. The roughly-bedded strata in the walls of the big crater
seem to dip away on all sides at a low angle, and their slope is probably
reflected in the gently inclined surface of the outer plateau that forms
the sides of the Aso cone. From the regularity of these slopes it
seems likely that they represent the truncated base of an old conical
mountain that continued upward with the present slope to a culmi-
nating point high above the center of what is now the crater bowl. It
is probable that if such a mountain existed its upper portion rose with
a gradually increasing slope into a peak, but even with a constant slope
such as now exhibited in the base, its height would have been 7,000 to
7,500 feet above the sea, or about 6,000 feet higher than the present
crater floor.
It is probable that during the early history of the volcano such a
cone was built up by successive eruptions of lava and fragmental
material that formed sheets one upon another down the sides and
became roughly stratified in conformity with the slope of the moun-
tain; and that before the close of the period of greatest activity of the -
volcano this cone was beheaded by some disruptive force. Not only
was the summit removed, but the very heart of the volcano was opened,
leaving a vast bowl on the site of the old eminence surrounded by the
truncated lava flows of the outer circle of the mountain’s base. Still
later, the processes of building up recommencing, a new mountain
was constructed, this time not over a single center as seems to have
been the case before, but along the line of the short diameter of the
former oval mountain, and in this way the present chain of peaks was
raised. But the voleano was gradually dying down, and reconstruc-
tion on a grand scale ceased long before the new Aso had reached the
dimensions of the old, or even effectually obscured, except to casual
observation, the nature of its basal wreck.
The volume of the bowl of Aso, not subtracting the space that is
taken up by the supposedly subsequent range, is at least nine cubic
46 POPULAR SCIENCE MONTHLY
Fig. 9. ONE OF THE MOsT ACTIVE VOLCANOES OF JAPAN, KIRISHIMA-YAMA IN SOUTHERN
From its summit, which is 6,000 feet high, may be seen Aso-san 70 miles away to the north.
miles. The mass that must once have overlain it, measured as the
cone formed by the upward projection of the outer slopes, was at least
28 cubic miles in volume. Thus there must have been removed no
less than 37 cubic miles, or about five and a half millions of millions of
cubic feet of volcanic rock, a mass equal to over two and a half moun-
tains like Vesuvius.
Furthermore the likelihood that the cone steepened toward its sum-
mit makes it possible that the old mountain was of greater size than
estimated.
If we conceive of such a vast block of the earth’s surface being
blown up by some terrific explosion within the volcano, it is natural to
suppose that great irregular deposits of the erupted material would
be in evidence round the outside of the pit. There are immense areas
of voleanic débris that have settled after being blown into the air, whole
hills in places, within a radius of many miles of Aso. But these de-
posits seem to be regularly bedded and not to exhibit the rough and
tumble structure that would probably result from their being tumultu-
ously cast up by such a great explosion, and they do not form a rim
around the crater rising above the old slopes of the cone. And
further the walls of the pit seem to be too regular to have been ex-
plosively broken.
More acceptable appears the theory that the Aso crater is a sunken
pit. A voleano of such magnitude must certainly have been under-
lain at some unknown depth by a large body of molten rock, the source
of the lava that built up the cone. With all the weight exerted upon
it by the overlying rocks and the pressure of steam from within, this
fluid or viscous, intensely-heated mass must have sought violently for
THE GREAT JAPANESE VOLCANO ASO 47
KIUSHIU, AS SEEN FROM A DISTANCE. It has been in violent eruption during the last decade.
escape. Having, probably, found one or more points of discharge far
below the summit of the cone, it flowed out in such vast quantities
that it left a cavity large enough to engulf the whole of the un-
supported mountain mass. The sinking was doubtless aided, and
lessened in violence, by the partial fusion of the overlying rocks as
they became more and more depressed, and probably the action took
place around a common center. When the mountain summit had
completely disappeared, there was left around about a regular curve
of unbroken walls bearing witness to the comparative gentleness with
which the action had been carried out. It is possible to consider
the central Aso range as part of the old mountain that did not sink or
become totally engulfed, but it seems more likely that it is a later
growth. The completed work probably left the whole of the sunken
mountain melted in a level lake within the great caldron. The
radiating lava flows described in a later paragraph may help to account
for the material removed.
After nearly two weeks spent in and about Aso we left it, setting
out eastward to continue our march across Kiushiu to the Pacific, on
the opposite side of the island from our starting point. The less
precipitous portions of the crater wall are well-watered and clothed
with beautiful groves of pines and cryptomerias, bamboos, oaks and
chestnut trees, among. which one finds little meadows and mossy places
and banks overgrown with rich grass, where thrive an abundance of
wild violets of various colors and sweet-smelling daphnes. Through
these woods our road wound up out of the pit at a comparatively low
and gently-rising portion of the wall, and finally over the crest of the
rim to the far-sloping outer reaches. Within a few days more we
48 POPULAR SCIENCE MONTHLY
looked back at Aso from the top of Sobo-san, the highest mountain
in the island, and appreciated more than ever the roundness of the
crater and its great size, which can be better grasped from such a dis-
tance than from nearer at hand. The square, high block of Taka-dake
and the turreted peak of Neko-dake stood impressively out of the huge
bowl.
Some miles to the south and east of Aso-san the surface covering
of voleanic ejectamenta which has filled up and blotted out the ancient
features of the landscape ceases to be a solid sheet, but lava streams
continue for great distances beyond, partly burying the old river
channels that radiate away from the region occupied by Aso-san. Aso
has evidently been the center of all the volcanic activity of this por-
tion of Kiushiu, and the source of supply of the erupted material
mantling the region. The longest of the lava arms follows the Gokase
river for a distance of over 30 miles beyond the edge of the volcanic
sheet as far as the sea, or a total distance of 50 miles from the volcano.
It must have started as a broad stream or as successive streams of lava
from Aso and have become narrowed into the old canyon of this river.
The width of the present lava filling of the canyon is on the average
21% to 3 miles, and the depth amounts certainly to several hundred feet.
The Gokase-gawa runs to the east coast, and down its canyon we
took our course after a few more days in the heart of Kiushiu. The
Fic. 10. OVEKLOOKING FROM THE HILLS THE BEAUTIFUL CITY AND Bay OF KAGOSHIMA IN
SOUTHERNMOST JAPAN. In the deep bay stands the island volcano Sakura-jima, almost 4,000
feet high, another of the active volcanoes of Kiushiu. In 1863 this city was bombarded and
partly burnt by an English admiral and his squadron. Again in 1877 it was set on fire during
the last days of the Satsuma rebellion, and here at that time the final desperate stand of some
of the Japanese nobility was made against the principle of Europeanization.
THE GREAT JAPANESE VOLCANO ASO 49
scenery was magnificent. High mountains rose on every hand out
of the fairly wide and level bottom-land within the canyon. But this
was not the old canyon bottom, it was the upper surface of the lava
filling. We made this discovery on reaching the middle of the valley,
where much to our surprise we came upon a tremendous gorge cut
squarely out of it by the river, which is eating its way down again to
find its old course. It has already reached a depth of 300 or 400 feet
through the lava flow and has left a rift vertically walled on either
side by columns of andesite that give a stately beauty to the cliffs.
The river rushes down a steep channel, always growing with the addi-
tion of little tributaries, which tumble in over the parapet from out
of jungles of greenery that overhang the edge and festoon the rocks
with drooping purple tassels of wistaria. In its lower course it
flows more quietly and widens, the rapids become less frequent and the
canyon loses the intensity of its angles. But still the old lava flow
continues. From the village of Takeshita, which means “below the
falls,’ we took a rowboat and glided down the broad stream the rest
of the way to the sea, away from the wild grandeur of the mountain
scenery into the midst of the picturesque landscapes of the Japanese
lowland.
VOL. LXxI.—4
50 POPULAR SCIENCE MONTHLY
CONTROL OF THE COLORADO RIVER REGAINED
By CHARLES ALMA BYERS
LOS ANGELES, CAL.
HE Colorado River, creator of the much-discussed Salton Sea, has
at last been captured. Its waters, always of uncertain quantity
and consequently often threatening, no longer are poured into Salton
Sink by way of a river-like irrigation ditch, but instead flow peaceably
into the Gulf of California as in the days before man had tampered
with it for irrigation purposes. And incidental to the river’s cap-
ture, Imperial Valley, that new agricultural region rescued by irriga-
tion from the Colorado Desert, an area lying below the level of the
sea, and a region that is some day destined to become worth millions
of dollars, is no longer in danger of being inundated by the murky
waters of this treacherous “yellow dragon” and consequently wiped
practically out of existence.
The going astray of the Colorado River, and the trouble incidental
thereto, which was described in THE PopuLtar ScIENCE MONTHLY
some months ago, has occasioned much study and deep concern by
engineers all over the country, and has attracted the attention of the
heads of two governments—the United States and Mexico. It has
created an inland sea in Salton Sink, adjacent to Imperial Valley,
that covers about 400 square miles, destroyed the works of the New
Liverpool Salt Company, caused three different removals of several
miles of the Southern Pacific Railroad, and necessitated the expendi-
ture of many thousands of dollars towards its control, besides threaten-
ing to submerge the Imperial Valley, several small cities of con-
siderable importance and a number of rich mineral deposits.
The trouble with the Colorado River, it will be recalled, began in
September, 1904. The California Development Company, promoters
of the Imperial land colony, needed more water for agricultural
purposes than their old irrigation ditch was then supplying, and to
remedy the shortage an incision was made in the banks of the river
at a point about four miles below the old tapping point, and below
the international boundary line between the United States and
Mexico. A flood in the river soon cut this new channel so deep as
to place the flow beyond control. Gradually this ditch was eroded
into a river that at times carried the entire flow of the Colorado
River, sometimes amounting to 40,000 second feet of water, and
poured it into Salton Sink.
CONTROL OF THE COLORADO RIVER 5a
In all, six attempts had been made to capture the runaway river
before the last and successful one. The first five, however, were
poorly carried out and practically amounted to nil in the final success.
The sixth proved better, and for a time it seemed to solve the problem.
Ii was completed on November 4, 1906, and on the night of December
7, 1906, during the flood, the river again ate its way through the
barrier of willow matting, piles, rocks and dirt and once more wended
its way toward Salton Sink. This dam, called the Hind Dam, in
honor of the field engineer, Thomas J. Hind, therefore withstood the
rebellious-inclined Colorado for a period of only thirty-three days.
The Hind Dam, which, though not a success of itself, aided in the
final capture, was a conglomerate creation 170 feet wide at the base,
30 feet across at the top and 35 feet high at the deepest places in
the break. It was 3,000 feet in length, of which 600 feet was of
rock construction and 2,400 feet of earth and gravel. Its founda-
tion consisted of a heavy, strong mat of willow and cable, held in
place by strong piles, about 1,100 in number and from forty to sixty
feet in length. The mat was created by the use of 2,200 cords of
willow, cut by Indians, 40 miles of five-eighths-inch woven steel cable,
and 10,000 cable clips. It was 100 feet wide and 800 feet in length,
divided into eighteen sections, and was laid across the river by being
uncoiled from a barge floated across the stream.
~ The piles driven into the mat were also made to serve as a sup-
port for a temporary railroad. From this road carload after carload
of material was dumped into the gap, in all there being 70,000 tons
of rock, 40,000 cubic feet of gravel, 40,000 cubic feet of clay, and
100,000 sacks of sand, besides about 500,000 yards of dirt thrown up
by teams and dredges. To carry on this work as many as 1,100 men
and 600 horses and mules, besides several steam dredges, shovels, pile
drivers and an almost endless string of freight cars, were employed
at one time. The cost of the work to the Southern Pacific Railway
Company, which, headed by Engineer Epes Randolph, engineered the
undertaking, reached an average rate of $10,000 per day for one
hundred days.
The break that occurred in the river after this dam was com-
pleted, in December, was at a part about 2,500 feet below the works,
and was 1,100 feet wide. Colonel Randolph again assembled his
forces, placed E. K. Clark, engineer of the Tucson division of the
Southern Pacific Railroad, in direct charge, and work was recom-
menced to solve this troublesome problem. Another dam, called the
Clarke Dam, was built and by it the Colorado River has at last been
permanently confined to its old channel.
To build this dam no attempt to follow science was made. The
Southern Pacific placed their entire road subject to the orders of the
52 POPULAR SCIENCE MONTHLY
engineers, and materials of almost every kind were rushed to the
break from points far and near as fast as it could be taken care of.
Piles were driven, a temporary road was constructed across the break,
and there was almost a continual dumping of rock, gravel and dirt
into the gap. A carload of material was dumped every seven minutes
both day and night, and in the short period of thirteen days 100,000
tons were disposed of, bringing the dam up to water level. Much of
this material was hauled a distance of 380 miles.
The Clarke Dam was practically completed February 10, 1906,
and the river was declared conquered. The dam proper is 1,200 feet
in length, of which 700 feet is of rock and 500 feet of gravel and
earth. Work, however, did not cease with the completion of the dam,
and, since February 10, several miles of earth embankment have been
built to insure permanent success. This work will continue until
about sixteen miles of levee is built along the west bank of the river,
in addition to the two dams with a combined length of 4,200 feet.
The river, in the vicinity of the breaks, or dams, and near the inter-
national boundary line, for a distance of about seven miles, flows
through a throat only 2,160 feet wide, and is considerably higher than
the territory lying to the west. The levee follows the river for this
distance, and then swings away to the west towards the Black Buttes,
leaving the river below this point to follow its own inclinations.
The California Development Company and the Southern Pacific
Railroad Company have expended to date upon this work a sum in
excess of $3,500,000. This is an enormous sum to dump into a river,
it seems, but since the river is captured and all interests immune from
further trouble, the two companies feel amply rewarded.
The United States government has inaugurated steps to place Im-
perial Valley in charge of the Government Reclamation Service, but
what the outcome of the move will be is not yet known. In the
meantime the California Development Company will conutine to
manage the colony, and will install new head-gates for their irriga-
tion ditches and otherwise improve the system. The farmers of the
valley feel secure now for the first time in two years, and Imperial
Valley promises to become a prospering community.
THE VALUE OF SCIENCE 53
THE VALUE OF SCIENCE
ScIENCE AND REALITY
By M. H. POINCARE
MEMBER OF THE INSTITUTE OF FRANCE
5. Contingence and Determinism
I DO not intend to treat here the question of the contingence of the
laws of nature, which is evidently insoluble, and on which so
much has already been written. I only wish to call attention to what
different meanings have been given to this word, contingence, and how
advantageous it would be to distinguish them.
If we look at any particular law, we may be certain in advance
that it can only be approximative. It is, in fact, deduced from experi-
mental verifications, and these verifications were and could be only
approximate. We should always expect that more precise measure-
ments will oblige us to add new terms to our formulas; this is what
has happened, for instance, in the case of Marriotte’s law.
Moreover the statement of any law is necessarily incomplete. This
enunciation should comprise the enumeration of all the antecedents in
virtue of which a given consequent can happen. I should first de-
scribe all the conditions of the experiment to be made and the law
would then be stated: If all the conditions are fulfilled, the phe-
nomenon will happen.
But we shall be sure of not having forgotten any of these condi-
tions only when we shall have described the state of the entire uni-
verse at the instant ¢; all the parts of this universe may, in fact,
exercise an influence more or less great on the phenomenon which must
happen at the instant ¢ + dt.
Now it is clear that such a description could not be found in the
enunciation of the law; besides, if it were made, the law would become
incapable of application; if one required so many conditions, there
would be very little chance of their ever being all realized at any
moment.
Then as one can never be certain of not having forgotten some
essential condition, it can not be said: If such and such conditions are
realized, such a phenomenon will occur; it can only be said: If such
and such conditions are realized, it is probable that such a phenomenon
will occur, very nearly.
54 POPULAR SCIENCE MONTHLY
Take the law of gravitation, which is the least imperfect of all
known laws. It enables us to foresee the motions of the planets.
When I use it, for instance, to calculate the orbit of Saturn, I neglect
the action of the stars, and in doing so, I am certain of not deceiving
myself, because I know that these stars are too far away for their
action to be sensible.
I announce, then, with a quasi-certitude that the coordinates of
Saturn at such an hour will be comprised between such and such
limits. Yet is that certitude absolute? Could there not exist in the
universe some gigantic mass, much greater than that of all the known
stars and whose action could make itself felt at great distances? That
mass might be animated by a colossal velocity, and after having circu-
jated from all time at such distances that its influence had remained
hitherto insensible to us, it might come all at once to pass near us.
Surely it would produce in our solar system enormous perturbations
that we could not have foreseen. All that can be said is that such
an event is wholly improbable, and then, instead of saying: Saturn
will be near such a point of the heavens, we must limit ourselves to
saying: Saturn will probably be near such a point of the heavens.
Although this probability may be practically equivalent to certainty,
it is only a probability.
For all these reasons, no particular law will ever be more than
approximate and probable. Scientists have never failed to recognize
this truth; only they believe, right or wrong, that every law may be
replaced by another closer and more probable, that this new law will
itself be only provisional, but that the same movement can continue
indefinitely, so that science in progressing will possess laws more and
more probable, that the approximation will end by differing as little
as you choose from exactitude and the probability from certitude.
If the scientists who think thus were right, must it still be said
that the laws of nature are contingent, even though each law, taken in
particular, may be qualified as contingent? Or must one require,
before concluding the contingence of the natural laws, that this
progress have an end, that the scientist finish some day by being
arrested in his search for a closer and closer approximation and that,
beyond a certain limit, he thereafter meet in nature only caprice?
In the conception of which I have just spoken (and which I shall
call the scientific conception), every law is only a statement, imperfect
and provisional, but it must one day be replaced by another, a superior
law, of which it is only a crude image. No place therefore remains
for the intervention of a free will.
It seems to me that the kinetic theory of gases will furnish us a
striking example.
You know that in this theory all the properties of gases are ex-
THE VALUE OF SCIENCE 55
plained by a simple hypothesis; it is supposed that all the gaseous
molecules move in every direction with great velocities and that they
follow rectilineal paths which are disturbed only when one molecule
passes very near the sides of the vessel or another molecule. The
effects our crude senses enable us to observe are the mean effects, and
in these means, the great deviations compensate, or at least it is very
improbable that they do not compensate; so that the observable phe-
nomena follow simple laws such as that of Mariotte or of Gay-Lussac.
But this compensation of deviations is only probable. The molecules
incessantly change place and in these continual displacements the
figures they form pass successively through all possible combinations.
Singly these combinations are very numerous; almost all are in con-
formity with Mariotte’s law, only a few deviate from it. These also
will happen, only it would be necessary to wait a long time for them.
If a gas were observed during a sufficiently long time, it would cer-
tainly be finally seen to deviate, for a very short time, from Mariotte’s
law. How long would it be necessary to wait? If it were desired to
calculate the probable number of years, it would be found that this
number is so great that to write only the number of places of figures
employed would still require half a score places of figures. No matter;
enough that it may be done.
I do not care to discuss here the value of this theory. It is evident
that if it be adopted, Mariotte’s law will thereafter appear only as
contingent, since a day will come when it will not be true. And yet,
think you the partisans of the kinetic theory are adversaries of deter-
minism? Far from it; they are the most ultra of mechanists. Their
molecules follow rigid paths, from which they depart only under the
influence of forces which vary with the distance, following a perfectly
determinate law. There remains in their system not the smallest
place either for freedom, or for an evolutionary factor, properly so-
called, or for anything whatever that could be called contingence. I
add, to avoid mistake, that neither is there any evolution of Mariotte’s
law itself; it ceases to be true after I know not how many centuries;
but at the end of a fraction of a second it again becomes true and that
for an incalculable number of centuries.
And since I have pronounced the word evolution, let us clear away
another mistake. It is often said: Who knows whether the laws do
not evolve and whether we shall not one day discover that they were
not at the Carboniferous epoch what they are to-day? What are we
to understand by that? What we think we know about the past state
of our globe, we deduce from its present state. And how is this
deduction made? It is by means of laws supposed known. The law
being a relation between the antecedent and the consequent, enables us
equally well to deduce the consequent from the antecedent, that is, to
56 POPULAR SCIENCE MONTHLY
foresee the future, and to deduce the antecedent from the consequent,
that is, to conclude from the present to the past. The astronomer who
knows the present situation of the stars can from it deduce their
future situation by Newton’s law, and this is what he does when he
constructs ephemerides; and he can equally deduce from it their past
situation. The calculations he thus can make can not teach him that
Newton’s law will cease to be true in the future, since this law is
precisely his point of departure; not more can they tell him it was
not true in the past. Still in what concerns the future, his ephem-
erides can one day be tested and our descendants will perhaps recog-
nize that they were false. But in what concerns the past, the geo
logic past which had no witnesses, the results of his calculation, like
those of all speculations where we seek to deduce the past from the
present, escape by their very nature every species of test. So that if
the laws of nature were not the same in the Carboniferous age as at
the present epoch, we shall never be able to know it, since we can
know nothing of this age only what we deduce from the hypothesis
of the permanence of these laws.
Perhaps it will be said that this hypothesis might lead to contra-
dictory results and that we shall be obliged to abandon it. Thus, in
what concerns the origin of life, we may conclude that there have
always been living beings, since the present world shows us always
life springing from life; and we may also conclude that there have not
always been, since the application of the existent laws of physics to the
present state of our globe teaches us that there was a time when this
globe was so warm that life on it was impossible. But contradictions
of this sort can always be removed in two ways; it may be supposed
that the actual laws of nature are not exactly what we have assumed;
or else it may be supposed that the laws of nature actually are what
we have assumed, but that it has not always been so.
It is evident that the actual laws will never be sufficiently well
known for us not to be able to adopt the first of these two solutions
and for us to be constrained to infer the evolution of natural laws.
On the other hand, suppose such an evolution; assume, if you wish,
that humanity lasts sufficiently long for this evolution to have wit-
nesses. The same antecedent shall preduce, for instance, different con-
sequents at the Carboniferous epoch and at the Quaternary. That
evidently means that the antecedents are closely alike; if all the cir-
cumstances were identical, the Carboniferous epoch would be indis-
tinguishable from the Quaternary. Evidently this is not what is sup-
posed. What remains is that such antecedent, accompanied by such
accessory circumstance, produces such consequent; and that the same
antecedent, accompanied by such other accessory circumstance, pro-
duces such other consequent. Time does not enter into the affair.
THE VALUE OF SCIENCE 57
The law, such as ill-informed science would have stated it, and
which would have affirmed that this antecedent always produces this
consequent, without taking account of the accessory circumstances, this
law, which was only approximate and probable, must be replaced by
another law more approximate and more probable, which brings in
these accessory circumstances. We always come back, therefore, to
that same process which we have analyzed above, and if humanity
should discover something of this sort, it would not say that it is the
laws which have evoluted, but the circumstances which have changed.
Here, therefore, are several different senses of the word contingence.
M. LeRoy retains them all and he does not sufficiently distinguish
them, but he introduces a new one. Experimental laws are only
approximate, and if some appear to us as exact, it is because we have
artificially transformed them into what I have above called a principle.
We have made this transformation freely, and as the caprice which has
determined us to make it is something eminently contingent, we have
communicated this contingence to the law itself. It is in this sense
that we have the right to say that determinism supposes freedom,
since it is freely that we become determinists. Perhaps it will be
found that this is to give large scope to nominalism and that the
introduction of this new sense of the word contingence will not help
much to solve all those questions which naturally arise and of which
we have just been speaking.
I do not at all wish to investigate here the foundations of the
principle of induction; I know very well that I shall not succeed; it is
as difficult to justify this principle as to get on without it. I only
wish to show how scientists apply it and are forced to apply it.
When the same antecedent recurs, the same consequent must like-
wise recur; such is the ordinary statement. But reduced to these
terms this principle could be of no use. For one to be able to say that
the same antecedent recurred, it would be necessary for the circum-
stances all to be reproduced, since no one is absolutely indifferent, and
for them to be exactly reproduced. And, as that will never happen,
the principle can have no application.
We should therefore modify the enunciation and say: If an ante-
cedent A has once produced a consequent B, an antecedent A’, slightly
different from A, will produce a consequent B’, slightly different from
B. But how shall we recognize that the antecedents A and A’ are
“slightly different”? If some one of the circumstances can be ex-
pressed by a number, and this number has in the two cases values
very near together, the sense of the phrase “ slightly different ” is rela-
tively clear; the principle then signifies that the consequent is a
continuous function of the antecedent. And as a practical rule, we
reach this conclusion that we have the right to interpolate. This
58 POPULAR SCIENCH MONTHLY
is in fact what scientists do every day, and without interpolation all
science would be impossible.
Yet observe one thing. The law sought may be represented by a
curve. Experiment has taught us certain points of this curve. In
virtue of the principle we have just stated, we believe these points may
be connected by a continuous graph. We trace this graph with the
eye. New experiments will furnish us new points of the curve. If
these points are outside of the graph traced in advance, we shall have
to modify our curve, but not to abandon our principle. Through any
points, however numerous they may be, a continuous curve may always
be passed. Doubtless, if this curve is too capricious, we shall be
shocked (and we shall even suspect errors of experiment), but the
principle will not be directly put at fault.
Furthermore, among the circumstances of a phenomenon, there are
some that we regard as negligible, and we shall consider A and A’ as
slightly different if they differ only by these accessory circumstances.
For instance, I have ascertained that hydrogen unites with oxygen
under the influence of the electric spark, and I am certain that these
two gases will unite anew, although the longitude of Jupiter may have
changed considerably in the interval. We assume, for instance, that
the state of distant bodies can have no sensible influence on terrestrial
phenomena, and that seems in fact requisite, but there are cases where
the choice of these practically indifferent circumstances admits of
more arbitrariness or, if you choose, requires more tact.
One more remark: The principle of induction would be inapplicable
if there did not exist in nature a great quantity of bodies like one
another, or almost alike, and if we could not infer, for instance, from
one bit of phosphorus to another bit of phosphorus.
If we reflect on these considerations, the problem of determinism
and of contingence will appear to us in a new light.
Suppose we were able to embrace the series of all phenomena of the
universe in the whole sequence of time. We could envisage what
might be called the sequences, I mean relations between antecedent
and consequent. I do not wish to speak of constant relations or laws,
I envisage separately (individually, so to speak) the different sequences
realized.
We should then recognize that among these sequences there are
no two altogether alike. But, if the principle of induction, as we
have just stated it, is true, there will be those almost alike and that
can be classed alongside one another. In other words, it is possible
to make a classification of sequences.
It is to the possibility and the legitimacy of such a classification
that determinism, in the end, reduces. This is all that the preceding
analysis leaves of it. Perhaps under this modest form it will seem
less appalling to the moralist.
THE VALUE OF SCIENCE 59
It will doubtless be said that this is to come back by a detour to
M. LeRoy’s conclusion which a moment ago we seemed to reject: we
are determinists voluntarily. And in fact all classification supposes
the active intervention of the classifier. I agree that this may be
maintained, but it seems to me that this detour will not have been
useless and will have contributed to enlighten us a litle.
6. Objectivity of Science
I arrive at the question set by the title of this article: What is the
objective value of science? And first what should we understand by
objectivity ?
What guarantees the objectivity of the world in which we live is
that this world is common to us with other thinking beings. Through
the communications that we have with other men, we receive from
them ready-made reasonings; we know that these reasonings do not
come from us and at the same time we recognize in them the work of
reasonable beings like ourselves. And as these reasonings appear to
fit the world of our sensations, we think we may infer that these rea-
sonable beings have seen the same thing as we; thus it is we know we
have not been dreaming.
Such, therefore, is the first condition of objectivity; what is ob-
jective must be common to many minds and consequently transmissible
from one to the other, and as this transmission can only come about
by that “ discourse ” which inspires so much distrust in M. LeRoy, we
are even forced to conclude: no discourse, no objectivity.
The sensations of others will be for us a world eternally closed.
We have no means of verifying that the sensation I call red is the
same as that which my neighbor calls red.
Suppose that a cherry and a red poppy produce on me the sensa-
tion A and on him the sensation B and that, on the contrary, a leaf
produces on me the sensation B and on him the sensation A. It is
clear we shall never know anything about it; since I shall call red
the sensation A and green the sensation B, while he will call the first
green and the second red. In compensation, what we shall be able to
ascertain is that, for him as for me, the cherry and the red poppy pro-
duce the same sensation, since he gives the same name to the sensations
he feels and I do the same.
Sensations are therefore intransmissible, or rather all that is pure
quality in them is intransmissible and forever impenetrable. But it
is not the same with relations between these sensations.
From this point of view, all that is objective is devoid of all
quality and is only pure relation. Certes, I shall not go so far as to
say that objectivity is only pure quantity (this would be to particularize
too far the nature of the relations in question), but we understand
60 POPULAR SCIENCE MONTHLY
how some one could have been carried away into saying that the world
is only a differential equation.
With due reserve regarding this paradoxical roast we must
nevertheless admit that nothing is objective which is not transmissible,
and consequently that the relations between the sensations can alone
have an objective value.
Perhaps it will be said that the esthetic emotion, which is common
to all mankind, is proof that the qualities of our sensations are also
the same for all men and hence are objective. But if we think about
this, we shall see that the proof is not complete; what is proved is that
this emotion is aroused in John as in James by the sensations to which
James and John give the same name or by the corresponding combina-
tions of these sensations; either because this emotion is associated in
John with the sensation A, which John calls red, while parallelly it
is associated in James with the sensation B, which James -calls red;
or better because this emotion is aroused, not by the qualities them-
selves of the sensations, but by the harmonious combination of their
relations of which we undergo the unconscious impression.
Such a sensation is beautiful, not because it possesses such a quality,
but because it occupies such a place in the woof of our associations
of ideas, so that it can not be excited without putting in motion the
‘receiver’ which is at the other end of the thread and which cerre-
sponds to the artistic emotion.
Whether we take the moral, the esthetic or the scientific point of
view, it is always the same thing. Nothing is objective except what
is identical for all; now we can only speak of such an identity if a
comparison is possible, and can be translated into a ‘money of ex-
change’ capable of transmission from one mind to another. Nothing,
therefore, will have objective value except what is transmissible by
‘discourse,’ that is, intelligible.
But this is only one side of the question. An absolutely disordered
aggregate could not have objective value since it would be unintelligible,
but no more can a well-ordered assemblage have it, if it does not
correspond to sensations really experienced. It seems to me super-
fluous to recall this condition, and I should not have dreamed of it,
if it had not lately been maintained that physics is not an experimental
science. Although this opinion has no chance of being adopted
either by physicists or by philosophers, it is well to be warned so as
not to let oneself slip over the declivity which would lead thither.
Two conditions are therefore to be fulfilled, and if the first separates
reality? from the dream, the second distinguishes it from the romance.
21 here use the word real as a synonym of objective; I thus conform to
common usage; perhaps I am wrong, our dreams are real, but they are not
objective.
THE VALUE OF SCIENCE 61
Now what is science? I have explained in the preceding article,
it is before all a classification, a manner of bringing together facts
which appearances separate, though they were bound together by some
natural and hidden kinship. Science, in other words, is a system of
relations. Now we have just said, it is in the relations alone that
objectivity must be sought; it would be vain to seek it in beings con-
sidered as isolated from one another.
To say that science can not have objective value since it teaches
us only relations, this is to reason backwards, since, precisely, it is
relations alone which can be regarded as objective.
External objects, for instance, for which the word object was in-
vented, are really objects and not fleeting and fugitive appearances,
because they are not only groups of sensations, but groups cemented
by a constant bond. It is this bond, and this bond alone, which is
the object in itself, and this bond is a relation.
Therefore, when we ask what is the objective value of science,
that does not mean: Does science teach us the true nature of things?
but it means: Does it teach us the true relations of things?
To the first question, no one would hesitate to reply, no; but I
think we may go farther; not only science can not teach us the nature
of things; but nothing is capable of teaching it to us and if any
god knew it, he could not find words to express it. Not only can we
not divine the response, but if it were given to us, we could understand
nothing of it; I ask myself even whether we really understand the
question.
When, therefore, a scientific theory pretends to teach us what heat
is, or what is electricity, or life, it is condemned beforehand; all it
can give us is only a crude image. It is, therefore, provisional and
crumbling.
The first question being out of reason, the second remains. Can
science teach us the true relations of things? What it joins together
should that be put asunder, what it puts asunder should that be joined
together ?
To understand the meaning of this new question, it is needful to
refer to what was said above on the conditions of objectivity. Have
these relations an objective value? That means: Are these relations
the same for all? Will they still be the same for those who shall
come after us?
It is clear that they are not the same for the scientist and the
ignorant person. But that is unimportant, because if the ignorant
person does not see them all at once, the scientist may succeed in
making him see them by a series of experiments and reasonings. The
thing essential is that there are points on which all those acquainted
with the experiments made can reach accord.
62 POPULAR SCIENCE MONTHLY
The question is to know whether this accord will be durable and
whether it will persist for our successors. It may be asked whether
the unions that the science of to-day makes will be confirmed by the
science of to-morrow. To affirm that it will be so we can not invoke
any a priort reason; but this is a question of fact, and science has
already lived long enough for us to be able to find out by asking its
history whether the edifices it builds stand the test of time, or whether
they are only ephemeral constructions.
Now what do we see? At the first blush it seems to us that the
theories last only a day and that ruins upon ruins accumulate. To-
day the theories are born, to-morrow they are the fashion, the day after
to-morrow they are classic, the fourth day they are superannuated,
and the fifth they are forgotten. But if we look more closely, we
see that what thus succumb are the theories, properly so called, those
which pretend to teach us what things are. But there is in them
something which usually survives. If one of them has taught us
a true relation, this relation is definitively acquired, and it will be
found again under a new disguise in the other theories which will
successively come to reign in place of the old.
Take only a single example: The theory of the undulations of the
ether taught us that light is a motion; to-day fashion favors the
electromagnetic theory which teaches us that light is a current. We
do not consider whether we could reconcile them and say that light
is a current, and that this current is a motion. As it is probable in
any case that this motion would not be identical with that which the
partisans of the old theory presume, we might think ourselves justified
in saying that this old theory is dethroned. And yet something of
it remains, since between the hypothetical currents which Maxwell
supposes there are the same relations as between the hypothetical
motions that Fresnel supposed. There is, therefore, something which
remains over and this something is the essential. This it is which
explains how we see the present physicists pass without any embarrass-
ment from the language of Fresnel to that of Maxwell. Doubtless
many connections that were believed well established have been aban-
doned, but the greatest number remain and it would seem must remain.
And for these, then, what is the measure of their objectivity? Well,
it is precisely the same as for our belief in external objects. These
latter are real in this, that the sensations they make us feel appear
to us as united to each other by I know not what indestructible cement
and not by the hazard of a day. In the same way science reveals to
us between phenomena other bonds finer but not less solid; these are
threads so slender that they long remained unperceived, but once
noticed there remains no way of not seeing them; they are therefore not
less real than those which give their reality to external objects; small
THE VALUE OF SCIENCE 63
matter that they are more recently known since neither can perish
before the other.
It may be said, for instance, that the ether is no less real than any
external body; to say this body exists is to say there is between the
color of this body, its taste, its smell, an intimate bond, solid and
persistent; to say the ether exists is to say there is a natural kinship
between all the optical phenomena, and neither of the two propositions
has less value than the other.
And the scientific syntheses have in a sense even more reality than
those of the ordinary senses, since they embrace more terms and tend
to absorb in them the partial syntheses.
It will be said that science is only a classification and that a classi-
fication can not be true, but convenient. But it is true that it is
convenient, it is true that it is so not only for me, but for all men;
it is true that it will remain convenient for our descendants; it is
true finally that this can not be by chance.
In sum, the sole objective reality consists in the relations of things
whence results the universal harmony. Doubtless these relations, this
harmony, could not be conceived outside of a mind which conceives
them. But they are nevertheless objective because they are, will
become, or will remain, common to all thinking beings.
This will permit us to revert to the question of the rotation of
the earth which will give us at the same time a chance to make clear
what precedes by an example.
%. The Rotation of the Earth
“. . . Therefore,” have I said in Science and Hypothesis, “ this
affirmation, the earth turns round, has no meaning . . . or rather
these two propositions, the earth turns round, and, it is more con-
venient to suppose that the earth turns round, have one and the same
meaning.”
These words have given rise to the strangest interpretations. Some
have thought they saw in them the rehabilitation of Ptolemy’s system,
and perhaps the justification of Galileo’s condemnation.
Those who had read attentively the whole volume could not, how-
ever, delude themselves. This truth, the earth turns round, was put
on the same footing as Euclid’s postulate, for example. Was that to
reject it? But better; in the same language it may very well be said:
These two propositions, the external world exists, or, it is more con-
venient to suppose that it exists, have one and the same meaning.
So the hypothesis of the rotation of the earth would have the same
degree of certitude as the very existence of external objects.
But after what we have just explained in the fourth part, we may
go farther. A physical theory, we have said, is by so much the more
64 POPULAR SCIENCE MONTHLY
true, as it puts in evidence more true relations. In the light of this
new principle, let us examine the question which occupies us.
No, there is no absolute space; these two contradictory propositions:
‘The earth turns round’ and ‘The earth does not turn round’ are,
therefore, neither of them more true than the other. To affirm one
while denying the other, in the kinematic sense, would be to admit the
existence of absolute space.
But if the one reveals true relations that the other hides from us,
we can nevertheless regard it as physically more true than the other,
since it has a richer content. Now in this regard no doubt is possible.
Behold the apparent diurnal motion of the stars, and the diurnal
motion of the other heavenly bodies, and besides, the flattening of the
earth, the rotation of Foucault’s pendulum, the gyration of cyclones,
the trade-winds, what not else? For the Ptolemaist all these phe-
nomena have no bond between them; for the Copernican they are
produced by the one same cause. In saying, the earth turns round,
I affirm that all these phenomena have an intimate relation, and that
is true, and that remains true, although there is not and can not be
absolute space.
So much for the rotation of the earth upon itself; what shall we say
of its revolution around the sun? Here again, we have three phe-
nomena which for the Ptolemaist are absolutely independent and
which for the Copernican are referred back to the same origin; they
are the apparent displacements of the planets on the celestial sphere,
the aberration of the fixed stars, the parallax of these same stars. Is
it by chance that all the planets admit an inequality whose period is
a year, and that this period is precisely equal to that of aberration,
precisely equal besides to that of parallax? To adopt Ptolemy’s system
is to answer, yes; to adopt that of Copernicus is to answer, no; this is
to affirm that there is a bond between the three phenomena and that
also is true although there is no absolute space.
In Ptolemy’s system, the motions of the heavenly bodies can not
be explained by the action of central forces, celestial mechanics is
impossible. The intimate relations that celestial mechanics reveals to
us between all the celestial phenomena are true relations; to affirm the
immobility of the earth would be to deny these relations, that would
be to fool ourselves.
The truth for which Galileo suffered remains, therefore, the truth,
although it has not altogether the same meaning as for the vulgar, and
its true meaning is much more subtle, more profound and more rich.
8. Science for Its Own Sake
Not against M. LeRoy do I wish to defend science for its own sake;
may be this is what he condemns, but this is what he cultivates, since
THE VALUE OF SCIENCE 65
he loves and seeks truth and could not live without it. But I have
some thoughts to express.
We can not know all facts and it is necessary to choose those which
are worthy of being known. According to Tolstoi, scientists make
this choice at random, instead of making it, which would be reasonable,
with a view to practical applications. On the contrary, scientists think
that certain facts are more interesting than others, because they com-
plete an unfinished harmony, or because they make one foresee a great
number of other facts. If they are wrong, if this hierarchy of facts
that they implicitly postulate is only an idle illusion, there could be no
science for its own sake, and consequently there could be no science.
As for me, I believe they are right, and, for example, I have shown
above what is the high value of astronomical facts, not because they
are capable of practical applications, but because they are the most
instructive of all.
It is only through science and art that civilization is of value.
Some have wondered at the formula: science for its own sake; and
yet it is as good as life for its own sake, if life is only misery; and
even as happiness for its own sake, if we do not believe that all
pleasures are of the same quality, if we do not wish to admit that the
goal of civilization is to furnish alcohol to people who love to drink.
Every act should have an aim. We must suffer, we must work, we
must pay for our place at the game, but this is for seeing’s sake; or
at the very least that others may one day see.
All that is not thought is pure nothingness; since we can think only
thought and all the words we use to speak of things can express only
thoughts, to say there is something other than thought, is therefore an
affirmation which can have no meaning.
And yet—strange contradiction for those who believe in time—
geologic history shows us that life is only a short episode between two
eternities of death, and that, even in this episode, conscious thought
has lasted and will last only a moment. Thought is only a gleam
in the midst of a long night.
But it is this gleam which is everything.
voL. LxxxI.—5
66 POPULAR SCIENCE MONTHLY
THE NEWER HYGIENE?
By WILFRED H. MANWARING, M.D.
ASSOCIATE PROFESSOR OF PATHOLOGY, INDIANA UNIVERSITY
NSTRUCTION in the nature of infectious diseases, especially in
the means of transmitting these diseases from one person to
another, is required by law in all our public schools. This law is of
great value; for it is only through the intelligent cooperation of a
well-informed public, that hygienic and sanitary measures designed
to control and stamp out infectious diseases can be successful. A wide
diffusion of this knowledge will go far to make tuberculosis a thing
of the past, and diphtheria and small-pox unknown.
In obedience to the legal requirement, there are taught, in our
public schools, certain elementary facts regarding the nature of patho-
genic bacteria, and certain facts regarding the ways in which they are
transmitted from one person to another. These facts in themselves
are of inestimable value. But they are insufficient.
The presence of bacteria within or upon the human body, the
transmission of disease-germs from the sick to the well, is but one of
the factors tending to cause disease. To acquire a disease it is neces-
sary, not only to acquire the germs of that disease, but there usually
must be a lowering of bodily resistance as well.
Every fourth person in this room is carrying daily in his throat and
mouth virulent pneumococci. Yet he does not acquire pneumonia.
And why? Because there is an efficient defense against this disease in
the healthy human body. Some day this defense will be lowered
and pneumonia develop. Most soldiers in the Philippines carry in
their intestinal canals virulent germs of dysentery; and with no ill
effects, till intoxication or dietary excesses lower the intestinal resist-
ance. We daily inhale germs of tuberculosis. Some day, when our
resistance is low, we acquire the disease.
A knowledge of the body’s fighting power against bacteria, a knowl-
edge of the ways in which that power can be increased or decreased by
hereditary influences and by modes of life, is therefore of hygienic
importance, and should form part of the curriculum of every public
school.
The body fights disease in many ways. It will be sufficient for
hygienic purposes to teach but three of these ways: the method of
antitoxines, the method of antiseptics and the method of phagocytosis.
An address before the Indiana Academy of Science, at Indianapolis, De-
cember 1, 1906.
THE NEWER HYGIENE 67
There are many diseases in which the symptoms are caused, not by
the bacteria themselves, but by the chemical poisons the bacteria manu-
facture. Thus, in tetanus, or lock-jaw, the bacteria grow, perhaps
unnoticed, at the bottom of the Fourth-of-July wound on the hand or
foot; but the chemical poisons they manufacture, carried by the blood
to the brain and spinal cord, cause the spasms and convulsions that
characterize the disease. In diphtheria, the bacteria rarely enter the
body, but grow in grayish-white masses on the moist surfaces of the
mouth and throat. The chemical poisons they manufacture, absorbed
by the tissues, cause the paralysis and heart failure that characterize
the disease.
The body has the power of forming substances that neutralize these
poisons. To these neutralizing substances the name antitoxine has
been given.
This fact is of hygienic importance for two reasons. First, because
it is sometimes possible to assist the body in its efforts to form anti-
toxines, by introducing into it antitoxines artificially prepared; and,
seeond, because the body’s power to form these substances is modified
by mode of life. A horse that has been repeatedly injected with poison
manufactured by the germs of diphtheria growing on an artificial cul-
ture medium, develops enormous amounts of diphtheria antitoxine.
A few drops of its serum will render harmless large quantities of
diphtheria poison." Overwork, insufficient clothing, improper food,
alcoholic excesses, lack of sleep, and other factors, so lower the anti-
toxine-forming power of the human body, as to greatly increase the
dangers from infection.
The second way of hygienic importance in which the body fights
disease is by the formation of chemical substances that, although they
have no influence on the poisons manufactured by bacteria, have an
even more important property, that of killing the bacteria themselves.
The presence of these antiseptic, or bacteria-killing substances in the
blood and tissue juices is easily shown. One has but to mix bacteria
with serum, and test, from time to time, by simply cultural methods,?
whether or not the bacteria are alive. Thus, in one experiment, there
were mixed with human serum germs of typhoid fever in such numbers
that every drop of the serum contained 50,000 bacteria. Two minutes
later, but 20,000 of these were alive; at the end of ten minutes, but
800; and in twenty-five minutes, they were all dead.
Not only can serum kill bacteria, but most of the secretions of the
healthy human body are bacteria-killing as well. Gastric juice, vaginal
secretion and nasal secretion, kill bacteria in enormous numbers. The
* Through the use of diphtheria antitoxine in practical medicine the mor-
tality from diphtheria has been reduced from the 24 per cent. to 40 per cent. it
was, twenty years ago, to the less than | per cent. it now is, in well-treated cases.
?See PopuLtaR ScIENCE MONTHLY, Vol. 66, pp. 474—477.
68 POPULAR SCIENCE MONTHLY
hygienic significance of this is evident from the fact that these bac-
teria-killing substances, also, are modified by modes of life. Dietary
excesses may so lower the bacteria-killing properties of gastric juice,
and unsanitary conditions so lessen that of tissue juices, that sus-
ceptibility to infectious diseases is greatly increased.
The third way of hygienic importance in which the body fights
disease is by phagocytosis. In the body there are millions of white
blood corpuscles, each having the power of independent motion and
as one of its functions the faculty of eating and destroying disease
germs.
It is found that the bacteria-eating power of white corpuscles is
largely dependent upon certain chemical substances* present in the
blood and tissue juices. Without these substances, the eating of certain
pathogenic bacteria does not take place. With them, it is very active.
It is further found that these chemical substances are influenced by
modes of life. That they may be increased or decreased under dif-
ferent hygienic conditions. Phagocytosis, therefore, has also a place
in popular hygienic knowledge.
One of the unfortunate results of the spread of knowledge of patho-
genic microorganisms is the formation of an unreasoning popular fear
of disease germs. It is thought that a wide understanding of facts
regarding bodily resistance will tend to replace this unfortunate germ-
fear by a rational faith in the body’s marvelous powers. That it may
turn the tide of hygienic endeavor from an exclusive fight against
bacteria to a combined fight against bacteria and for bodily resistance.
5 Opsonins.
THE FORMS OF SELECTION 69
THE FORMS OF SELECTION WITH REFERENCE TO THEIR
APPLICATION TO MAN
By G. P. WATKINS
CORNELL UNIVERSITY
HAT is the importance of natural selection in mankind is a
question often asked. It is about as often answered without
analysis. Put in this very general way, it contains, and confuses,
several different questions.
It is alleged that the conditions of life are so much improved by
civilization that the struggle for existence is vanishing. Is that strug-
gle, then, the only means of selection? And even if the cruder forms
of selection are coming to be of little importance in man—which is
doubtless the fact—are there not other kinds of selection still to be
considered? It is time to analyze selection and determine its species.
Then, when we know the kinds of selection, we may ask, with specific
reference to each particular one: What is its importance in the present
evolution of man? How far is each kind of selection operative in
civilized society ?
In our task of classification, let us consider first Darwin’s division.
By his choice of a name for natural selection, Darwin assigns to nature
a work analogous to that of the breeder of domestic animals. Natural
and artificial are therefore two kinds or species of selection. The latter
species is more definitely named breeder’s selection. Thus we obtain
a first and provisional classification of the forms of selection as
NATURAL SELECTION AND BREEDER’S SELECTION
_ This simple classification is of importance, rather for an under-
standing of the meaning of the term natural selection, as Darwin
thought of it, than for our particular purposes. But we need to dwell
upon it somewhat, and dispose of it, before attempting a more adequate
analysis.
The analogy from which the term natural selection is derived sug-
gests a personification of nature. But natural selection is explicitly
contrasted with conscious and personal factors.t Nature’s action is
2 Though requiring such a caveat, Darwin’s use of the term “ natural selec-
tion” is a just and appropriate development in the meaning of the words. A
possible wrong first impression is corrected by the most elementary knowledge
of the subject. Not as much can be said for the proposed alternative, “ survival
of the fittest.” The “ fittest ”’ can not well be further defined than as the fittest
to survive. Thus we get back to mere survival. What we need to add to this
70 POPULAR SCIENCE MONTHLY
impersonal and unconscious. It is not choice. Breeder’s selection,
on the other hand, is consciously directed towards a known and very
definite end, the chosen “ points.” The action of natural selection is
no more conscious than is the action of the current of water that
separates pebbles from sand. ‘This is the first great difference between
natural selection and breeder’s selection.
In another respect nature’s agency in selection differs fundamentally
from that of the breeder. The mode of operation of breeder’s selection
is positive ; that of natural selection is negative. Natural selection elim-
inates by death the less well adapted members of a species. The
better adapted survive and reproduce their kind. It does not matter
in what respect they are better adapted. Protection from enemies
is achieved in the case of the porcupine by his quills. The deer is
saved by fleetness; wild cattle by the herding instinct, and by the
effective use of horns and hoofs which that makes possible. No
particular sort of quality is favored by natural selection, but those
lacking in any respect are cut off. Nature has no plan. The line
of evolution may take any direction; only, whatever the direction of
improvement, woe to the hindmost. We have already seen that breed-
er’s selection is conscious. That means its action is also positive.
Attention is directed to reproducing and further evolving a favored
type. The fan-tail pigeon exists because breeder’s sought to develop
a type with an unusually large number of tail feathers. The fleece
of the better breeds of sheep has become fine and long because breeders
sought this particular result. Breeder’s selection positively favors
certain individuals and types. Natural selection is primarily destruc-
tive of the inferior. It is negative. Incidentally it allows certain
better adapted individuals to survive.
The third difference between natural selection and breeder’s selec-
tion is that the latter operates directly on propagation, not necessarily
by death. In “nature,” this is among wild animals, the capacity to
survive is the whole story. It may in general be assumed that a wild
animal that survives to maturity, and lives through its prime, will
reproduce its kind. Though it is the essential point always, propaga-
tion is not in general the crucial point with lower animals.?, Among
is the notion of selection. Survival involving gelection is the thing of interest
to the biologist and sociologist. The word “ fittest ” is often used as if it meant
“best,” or at any rate most complex and most highly organized. It is particu-
larly in its application to man that this reading of an ethical connotation into
the “ survival of the fittest ” is to be deprecated.
The words “natural selection,’ whatever may have been the force of the
objection at the introduction of the term, have now quite lost any suggestion
of purpose and choice. Even the single word selection is coming to be, used
and understood as a generic term for natural selection, breeder’s selection,
“social selection”—if there be such a thing—and for any other forms of
selection.
* For some it is in part, that is, in sexual selection.
THE FORMS OF SELECTION 71
domestic animals, on the other hand, mere survival is not enough.
Where the breeder intervenes, propagation becomes the critical point.
The breeder can use inferior cattle as draft animals. He favors some
definite type for reproduction, but rejected individuals are not there-
fore destroyed. They may be put to some other use. Breeder’s selec-
tion has, as we shall come to see, the character of reproductive selection.
What Darwin, for the most part, dealt with as natural selection, we
shall find it better to call lethal selection.
The root-idea of natural selection, and of selection in general, is
segregation into classes distinguished by differences as regards con-
tinued existence of the type. One type is better adapted and survives,
another is eliminated. Selection means, etymologically, a picking out
and setting apart.* It is isolation in breeding. One eminent biologist
and evolutionist, Romanes, would substitute this, as the more general
term, for natural selection, and would make the latter but a species of
isolation. If a superior type is to be evolved and preserved, breeding
must be confined to those possessing in high degree the characteristics
of that type. The most direct and sure way to isolate the fit and to
prevent the propagation of unfit types is to kill off the unfit individuals.
This is just what “nature” does. But there are other ways of attain-
ing the same goal.
Darwin never attempted a formal classification of the forms of
selection. He does name, and treat at length, one other form besides
natural selection, that is, sexual selection. Other kinds, which are of
comparatively little importance in subhuman species, he either alto-
gether fails to distinguish or touches only casually. By his use of the
term sexual selection, which he contrasts with “ ordinary ”* or natural
selection, he does imply that the word selection is, by destiny, if not by
established usage, a generic term, to be qualified by an adjective in
order to indicate the various species of selection.
THE Four KINDs OF SELECTION
We have now come to the distinctive purpose of this essay, that is a
classification of the forms of selection having general applicability. I
believe that adequate analysis—of course from the point of view of the
sociologist, which is at the same time the most general point of view
—gives us four species of selection, named as follows:
Lethal selection.
Sexual selection.
Reproductive selection.
Group selection.
These terms, some of which are already familiar, are now to be defined.
‘ Selection, by usage, is both the process and the result. And of the parts
or aspects of the result, it is both negative (elimination) and positive (survival).
* Cf. “ Descent of Man,” sixth paragraph of Ch. VIII.
72 POPULAR SCIENCE MONTHLY
Darwin thought of natural selection chiefly as the elimination of
individuals by death. This is natural selection in the narrower sense.
But it is better to avoid possible ambiguity by giving this kind of
selection its distinctive name and separate treatment. It may appro-
priately be called lethal, that is death-bearing selection. Lethal selec-
tion, therefore, operates through the early elimination, or death, of
relatively ill-adapted individuals. “Early” is here a relative term.
Death operative by way of lethal selection occur either before physical
maturity, or soon enough after to affect the amount of reproduction.
Such death prevents the propagation of “ unfit ” characters.
Sexual selection depends on the advantage which certain individ-
uals have over others of the same sex and species in respect of mating,
and thus of reproduction.* It is due to sexual preferences which favor
the mating of certain individuals as against others of the same species,
and so cause more reproduction of certain characters than of others;
or, in another form, it is due to differences between individuals of the
same species as regards power forcibly to appropriate mates. ‘The first
of these may well be called esthetic, and the second combative, sexual
selection. Failure to mate, not failure to survive, is the mode of
elimination in sexual selection. The individual must become adapted
to the phenomena of sex within the species, as well as to outside
“nature.” “Selection in relation to sex” has an important part in
Darwin’s theory of organic evolution.
Among animals it is the relatively passive sex which exercises choice
in esthetic sexual selection, that is, usually the female. Hence the
beauty and song of birds are male attributes. In combative sexual
selection, on the other hand, the competition takes the form chiefly of
actual fighting between rival members of the active sex. There
is a difference between this struggle for mates and the “struggle for
existence.” “ Nature, red in tooth and claw” is poetic license. The
phrase gives no true notion of the workings of natural selection. The
poet is apparently licensed to be inaccurate. The struggle for exist-
ence is chiefly a noiseless, inglorious effort to wrest from the environ-
ment sufficient food to maintain life. For the rest, some animals
prey and others are preyed upon. It is only in combative serual
selection, however, that bloody combat, which implies a degree of
equality of prowess, is the regular thing. It is significant, likewise,
° He says, for example, natural selection “ produces its effects by the life or
death at all ages of the more or less successful individuals.” ‘“ Descent of Man,”
last paragraph of the section entitled The Male Generally More Modified than
the Female, Ch. VIII.
‘These are Darwin’s words, with the significant difference that he says
“ solely in respect of reproduction.” See “ Descent of Man,” fourth paragraph of
Ch, VIII. He thus fails to recognize what is called in this article reproductive
selection, for his sexual selection is clearly a different thing.
THE FORMS OF SELECTION 73
that the comparison of nature to a cock-pit uses phenomena, not of
natural, but of sexual, selection.
Reproductive selection depends directly on difference in degree of
fertility. If any quality is generally associated with a particularly
high or low degree of fertility, it is at an advantage or disadvantage
due to this form of selection. Reproductive selection is the case of
influences bearing directly on propagation, apart from obstacles to
mating, in a way relatively to diminish or increase the number of off-
spring from individuals possessing certain characteristics. The idea
of reproductive selection is not developed by Darwin,’ though it is
fully in accord with his general theory and supported by his emphasis
on propagation. It has little applicability to the lower animals, but
for man it has very great importance.
Differences in ability to procure mates with resulting differences in
number of offspring can be distinguished from differential results
where the opportunity to mate and reproduce is equal. The former is
sexual selection; the latter is reproductive selection. The two are
related as pertaining to propagation exclusively, and are contrasted
with lethal selection in that they do not involve the question of individ-
ual survival. Reproductive selection is a phenomenon of the diverse
results of equal opportunities for sexual intercourse. Sexual selection
is a matter of obstacles to mating, that is to getting opportunities for
sexual intercourse at all. The former rests on differences between
individuals as regards degree of reproductivity, granted mating. The
latter turns on differences in degree of ability to obtain mates. Though
an element of each form may be present in a particular case of selec-
tion, the distinction is important, especially in mankind.
In order that the individual shall be “ selected ” in the fullest sense,
he must successfully run a threefold gauntlet. He must live to maturity
and enjoy a long and vigorous prime. In obtaining a mate, or mates,
he must be as successful as the “ best ” of his fellows. He must also,
equally with the most favored of his species, possess and exercise the
power to reproduce his kind and to hand down his characteristics to a
numerous progeny. If he fails in the first particular, he is eliminated
by lethal selection. If he fails at the second point, his kind is elimi-
nated by sexual selection. If he fails in the third respect, his kind is
eliminated by reproductive selection. In all these three particulars his
failure need not be absolute, but may be a matter of degree, in which
case the elimination is gradual. He may survive to maturity, but
perhaps little beyond that. He may leave offspring that are too few in
number as compared with those of his fellows. The critical question
™The name and idea are contributions of Professor Karl Pearson. See his
essay “ Reproductive Selection ” in his “ Chances of Death and Other Studies in
Evolution”; also “Contributions to the Mathematical Theory of Evolution,”
III., in the Philosophical Transactions of the Royal Society, Vol. 188, p. 253.
74 POPULAR SCIENCE MONTHLY
always is: Whose descendants are to represent the future of the
species? The question is one. But a decision may be rendered at any
of several different points.
The three forms of selection so far mentioned apply to individuals.
Group selection is recognized by Darwin, though not treated separately,
nor by him distinguished from natural selection. Group selection
results where a number of individuals act and suffer jointly, whether
with conscious purpose or not, in matters affecting their success and
survival in competition with other groups.’ It is selection operating
groupwise.
We have distinguished three forms of selection of individuals, over
against which is now set group selection. It may appear that we
should make a triple division of group selection, as we have of the
selection of individuals. It is obvious, however, that the concept of
sexual selection is entirely inapplicable. A group does not propagate
its kind by a sexual relation with another group. Reproduction, of
course asexual, might be predicated of a group. The idea of repro-
duction, however, as applied to the group, is but an analogy; and where
so applied, it is of little or no significance for selection. Reproduc-
tion of its individuals is not reproduction of the group, for the group
remains the same while its members change, just as does the body
while its component cells die and are replaced by others. The group
is thus potentially immortal and does not regularly reproduce itself.
When a successful group becomes unduly large, it may divide or send
out a “ daughter colony,” thus, so to speak, propagating itself by fission.
But this is a question of size, not of differences in degree of natural
reproductivity on the part of groups. As regards the “ decease” of
such a selectional group, moreover, it comes either by dissolution,
that is, by the loosening of its bands and the dropping away of its
members, or by their physical death. In the former case selection has
not yet completed its work. In the latter case its work has taken an
individual form. The ultimate incidence of group selection is always
on individuals, affecting them either in the duration of their life or in
their reproduction. But the effect is likely to be compound. From
which of these two sorts of selection it comes, and how much is from
one or the other form, are questions which have little importance from
the point of view of the group. Therefore, if it is possible, it is not
worth while, to attempt to subdivide group selection into lethal and
reproductive forms.
Group selection is logically coordinate with all three of the other
forms. In practise, however, taking account of its degree of impor-
tance, as well as of the fact that it is not to be subdivided, we may
*In the choice of terms, I have preferred to name the kind of selection from
its characteristic means at the decisive point. But I have not been able con-
sistently to hold to this terminology in the case of group selection.
THE FORMS OF SELECTION 75
treat it as on the same level with lethal, sexual and reproductive selec-
tion, constituting a fourth species.
It is repeating to say that successful reproduction of kind is the
essential fact in selection. But the importance of the point is great
enough to bear such a repetition. It is significant that Darwin got his
idea from the practise of breeders of domestic animals, which is based
upon the principle of reproductive selection. Lethal selection is more
radical and more incisive in its methods, but death itself operates as a
selective agency only through preventing reproduction. Elimination
by death after the reproductive period is passed is not selectional. It
merely makes more room for the new generation. Lethal selection
comes through early death. It is probable that most animals die either
when very young and immature or else after considerable reproduction.
Survivorship tables for man exhibit the same general phenomenon,
that is low mortality at the prime of life. Though we can not know ali
the possibilities of selection until we distinguish the four modes, they
are not independent explanatory principles. All are reducible to
effective propagation of kind, to success in leaving offspring. The fate
of the individual as such, counts for nothing. For selection, the con-
tinuation or destruction of the line of descent is the thing. An
individual is important only as belonging to or representing such a
line of descent. The “struggle for existence” is only an incident, or
a method, in selection. Selective propagation is what is essential.
The classification above presented is made with reference to the
needs and point of view of the sociologist. One might well doubt
whether the careful discrimination of reproductive selection, which has
been attempted, would be at all justified by the little scope of application
it finds among the lower animals. We know that sexual selection also
has but limited applicability, and only to higher forms of life. In
strictness, reproductive selection has been the factor that has, on occa-
sion, adaptively increased the fertility of a species, no matter how
low in the scale; while natural selection must have been the means
of adaptively decreasing such fertility. But this is a minor point.
Sexual selection seems to be the nearest that nature comes to admitting
reproductive selection as an important factor. As regards domestic
animals, also, what the breeder controls is mating rather than strictly
and directly reproduction. This case well illustrates the difficulty of
sharply discriminating reproductive selection. In man, however, fer-
tility is extremely variable, by nature and through artificial means,
so that we must, in man, take account of sheer natality, apart from
other selective factors.® It is significant that the point of view of
®* Perhaps it might be better, for this reason, to use the term “ natal sefec-
tion” for what has been called “ reproductive selection,’ and reserve the latter
for general use to cover both sexual and natal forms. But the term “ natal ”
suggests germinal selection, and the idea of selection at birth or soon after
would also be brought to mind, which is of course lethal selection.
76 POPULAR SCIENCE MONTHLY
the sociologist is, in the matter of selection, more inclusive, and more
exhaustive of selective possibilities, than that of the biologist.
In our fourfold classification we have left out the term “ natural
selection.” For its narrower, specific meaning “ lethal selection” is
decidedly preferable. Might not the older phrase be used as the generic
name for all the forms of selection? Usage seems to favor this.
“ Selection,” without a qualifying adjective, is logically the generic
term, but is not yet so established as to be unquestionable. Natural
selection is therefore convenient as a make-shift or substitute general
term. It is familiar, and all the forms of selection do occur in nature.
So, despite the implication of Darwin’s practise in relation to sexual
selection, natural selection might be used roughly for all four classes,
though with a saving clause against including such a thing as purposive
breeder’s selection.
SELECTION APPLIED TO Man
In the attempt to apply selection to man, clearness of conception
has often been lost. Two sorts of mistakes have been made. The
complexity of life in civilized society, as compared with the simplicity
of nature’s conditions, has invited, on the one hand, to extensions of
meaning, by which processes have been described as natural selection
which are not selection at all. In particular, it has been supposed that
segregation by economic or social success is selection. It is rather
selective dissociation. This is an important preliminary to selection,
but the incidence of the latter may as well be unfavorable as favorable
to the survival of those who rise in the social scale.
There are, on the other hand, sociologists who deny that natural
selection, meaning by that lethal selection, is of much significance for
man. Such are likely to develop and emphasize contrasts between
natural selection and what they chose to call “ social selection.” This
is a conception for which the writer finds little use. Social selection
should mean selection by society, and since society, unlike “ nature,”
is to some degree conscious and purposive, social selection should mean
more or less conscious selection by society. Whatever selection there
is of this sort may still be brought under one of our four forms. But
there are more, and more important, non-teleological sorts of selection
resulting from characteristically social processes. And such phenom-
ena of selection im society are what those who talk of social selection
have chiefly in mind. These are provided for in our classification,
though in distinguishing types use has been made rather of the method
of the selection. To attempt to distinguish forms of selection accord-
ing to the varieties of selective conditions would give an almost endless
list, and the differences would not be of explanatory or scientific
importance. We may speak of military or religious or industrial selec-
tion if we will, but these are descriptive terms rather than logical
categories. This fact has not been perceived by those sociologists who,
THE FORMS OF SELECTION 77
rightly departing from the rough and ready practise which calls almost
anything natural selection, have wrongly gone on to find about as many
different forms of selection as there are social institutions and customs.’°
As regards the scope of selection in general in its application to
man, we are now prepared to believe that any influence that bears in
any of the four ways enumerated upon the continuance of lines of
descent presumably has selective importance. Only on the hypothesis
of pure chance distribution of effects can any influence known to affect
propagation be declared to be non-selective. The chances against this
are infinity to one. No enumeration can cover all possible selective
agencies. Every habit, custom and institution of man.might well be
examined with a view to detecting such effects. Selection must have
tremendous importance in human society. It certainly is a central
problem, perhaps the fundamental problem and point of departure,
for a science of society.
Only the confounding of selection in general with mere lethal
selection can explain the opinion that selection is inoperative in human
society. Even so, the opinion is not well-considered, for there is
much selection by death in civilized man. Lethal selection is not a
matter of violent death, or death in struggle. The conception of
natural selection as the result of a “ free fight ”—a bellum omnium
contra omnes—has no justification in any phase of its application.
Half the population of many civilized societies, and of course on the
whole the weaker half, dies before reaching maturity. In the parts
of the United States for which tolerable registration statistics are to
be had, at least one third of the deaths are of persons under the age
of fifteen. This involves lethal selection.
But lethal selection is not all. The forms and agencies of selec-
tion multiply as we pass upwards in the organic series. Hence we
might expect a culmination, as regards manifoldness and complexity,
in man. It is true that there are fewer births to select from, but
the selection may come before birth, and in fact comes so always in the
last analysis. And if there is less selection by death in man, there
is also less random and indiscriminate destruction of human than of
lower animal or plant life. The field for the study of selection in
human society is as great and as complex as that in which the biolo-
gist works.
Of lethal selection in its application to man, little more need be
said. Life-tables and deaths according to age tell the story. Lethal
selection is not to be dismissed with the statement that men no longer
habitually attack and kill one another, and in civilized states do not
die for want of food. Of course selection by the dissolution of the
weaker constitutions relates chiefly to physical qualities, but its im-
*” Lapouge, in his “ Les Selections Sociales,” perhaps best illustrates this
tendency.
78 POPULAR SCIENCE MONTHLY
portance for that is great indeed. Modern improvements in medicine
and surgery may check the incisiveness of such action of selection.
But they can only lower, not destroy, the standard set for survival.
Lethal selection, however, even as regards mere physical qualities,
amounts to much less for Occidental civilized man than for any
other species of living thing. But some other species of selection are
proportionately more important.
A weightier consideration that might appear to make lethal selec-
tion of less interest to the sociologist is the fact that it appears hardly
to touch what is distinctively human in man’s constitution, that is,
his mental and moral qualities. But such selection does in fact pro-
mote mental stability, so far as the strain and stress of modern life
drive men to insanity and death. Alcoholism, too, as is proved by
the experience of life insurance companies, and by statistics of occu-
pational mortality, tends to eliminate those who are in this respect
deficient in self-control. In various ways the ignorant, the imprudent,
and the vicious, tend to destroy themselves.
The effects of sexual selection are much more deeply marked in
the organisms of birds than among mammals. The sexes in civilized
man, however, show pretty clearly its differentiating influence. The
greater strength of the male in man is probably due in part to sexual
rivalry. As regards women, on the other hand, their conventional
title, the “ fair sex,” is probably due to something more than mere
chivalry or mere flattery. The pretty girl still marries better or
earlier than her less “ well-favored” sister. It is to be hoped that
more important qualities than personal appearance are also favored
by sexual selection.
Alfred Russel Wallace, the co-discoverer with Darwin of natural
selection, though he curiously enough grudges recognition of it as a
factor in the evolution of lower animals, apparently because it involves
rather highly developed mentality, sees in esthetic sexual selection on
the part of women the great means to the future progress of the
human species.‘ With this opinion, the writer can not agree. Mar-
riage is not so much a result of exclusive and exacting “ elective affini-
ties ” that the relatively ineligible can not solace themselves with those
of the other sex who are similarly situated. The approximate equality
of sex numbers and the institution of monogamy, which forestalls
monopolizing tendencies, leave no considerable class of persons elimi-
nated by lack of opportunity to marry. Postponement of marriage
on this account is probably of some influence, but of no great im-
portance. Postponement of marriage and abstinence from it—the
latter amounting to more than one fifth in some regions—are prob-
ably due to variation in the relative strength of the marital and repro-
11 See his article, ““ Human Selection,” in the Fortnightly Review, Vol. 54;
also PopULAR ScIENCE MonrTHLY, Vol. 38.
THE FORMS OF SELECTION 79
ductive tendency more often than to failure to find opportunity to
marry. Sexual selection is probably still of some importance in man,
though of problematic influence.
Reproductive selection is by far the most important of selective
instrumentalities operating in civilized man. Here, and very re-
cently, it has first come to great importance. One sixth and more of
marriages in certain portions of civilized society are infertile. And
differences in the number of children to a family are still more sig-
nificant. This absolute or relative infertility must be more or less
selective in its incidence. Nerve-racking indulgences and ambitions
suggested or elicited by civilized life seem to create physiological con-
ditions unfavorable to reproduction. Still more important is the fact
that, with the increase and spread of physiological knowledge, the size
of the family is placed under the control of volition, and children are
no longer a necessary or to be expected result of sexual gratification.
So the wish not to be bothered with children, with the moral traits
it implies, leads to elimination. Over-cautiousness and desire to pam-
per children, on the other hand, resulting in the so-called “ two-child
system,” bring about, though more slowly, the same result. The over-
cautious in such matters certainly will not “inherit the earth.” Con-
scientiousness on account of transmitting physical weaknesses acts in
the same way. Celibacy as a religious observance has probably taken
from society some of its gentlest natures.**
An average of nearly four children to a family is necessary to keep
up the numbers of a population. For a family to have fewer is likely
to mean that it will have less representation in the next generation
than in the present. Such a family is certainly not holding its own
in a country of increasing population like the United States. Hence
the plaint of “race suicide,” which is in fact never race suicide, but
only the self-elimination of a particular section of society. The blood
of France may become Breton, but it not at all likely that France will
lose its population. The New England stock, which populated the
West, is probably now declining in numbers in its old home by defi-
ciency of natural increase.** But New England is gaining popula-
tion. There are always relatively and absolutely fertile elements in
society, as well as the relatively infertile. The significant thing is
what are their differences as regards mental and moral traits. Is “ race
suicide ” due more to selfishness or to over-caution? Is high fertility
due more to improvidence or to the love of children? How far is a
high standard of life associated with the most desirable mental traits?
* Galton notices this selectional influence as early as 1869, in his “ Hered-
itary Genius,” though of course without distinguishing it as reproductive
selection.
See articles of R. R. Kuczynski in the Quarterly Journal of Economics,
Vol. XVI.
80 POPULAR SCIENCE MONTHLY
Clearly reproductive selection is the most important selective influence
in present social evolution.
Men act and suffer jointly. Man is a social animal, and he is
such through adaptation. Primitive man, like many lower animals,
associates himself with others for mutual protection and support.
Hence the strength of tribal attachment and of clannishness. To
group selection chiefly is to be attributed capacity for cooperation and
those feelings of regard for others on which morality is based. The
attachment of mother and child is primeval and of course strongest.
But the family, created by the presence of the father, is the earliest
persistent, truly social group. Still more characteristically social is
the bond of union between grown-up brothers and sisters. Out of
kinship grouping has grown the broader, though vaguer and less in-
tense, recognition of fellowship contained in morality. Morality has
been called the egoism of the group. When developed and refined,
it is much more than that, but it is based upon the instinct that draws
men together.
Group selection is probably at its best in primitive man. Bagehot’s
classic discussion of the evolution of a coercive social organization is
an application of group selection. But in modern occidental society
the process of individualistic atomization has been carried so far as
to threaten the disintegration even of the family. Large family, clan,
tribe and village community are gone. There is left little but the
individual, or the natural family, and the state. What “groups”
there are between the state and the family are largely mere expres-
sions of an appetite for association which finds no other and more
important object upon which to exercise itself. And the state is of
no importance for group selection. It has become a thing of con-
trivance and a matter of social psychology. The family is the only
group left that is of much selectional importance. Of progressive
national states there are too few, in the face of the many questions
to be answered, to offer the necessary material. And they inter-
penetrate by migration in a way to defeat selection groupwise.
Selective dissociation is so closely related to selection, and so often
confounded with it, that it requires mention here. There is selective
dissociation where individuals of more or less similar traits are segre-
gated from others and put into a special environment of a nature to
affect their survival.‘* The incidence of the forms of selection varies
with geographical region and social class. The process of dissocia-
tion is not directly selection, but only indirectly important as its
preliminary.
Economic and social rise has been mentioned as often confused
with “survival.” Survival it is not, but merely selective dissociation
“The term “ dissociation” is used by C. C. Closson in articles in the Quar
terly Journal of Economics, Vols. X. and XI.
THE FORMS OF SELECTION 81
of those possessing traits making. for success. It probably means se-
lectional disadvantage, owing to the heavy incidence of reproductive
selection on “ successful ” families.
International migration to a new country is another case of select-
ive dissociation. The American colonists were undoubtedly, on the
whole, men of superior initiative and independence of character.
Their coming to America made possible the multiplication of their
descendants and their kind. Even our present-day immigrants are
rather superior in point of energy to those of the same economic con-
dition who remain behind, and they come to an environment present-
‘ing greater opportunities.
Urban migration is a notable example of selective dissociation.
According to the indications of anthropological and other evidence, it
is the more energetic element that migrates from country to city.
Under conditions prevailing down into the nineteenth century, cities
could not maintain their population by natural increase. Migration
to the city then meant subjection to an unusually severe incidence of
lethal selection. Our modern sanitary improvements have not yet
entirely removed the disadvantage of the city as compared with the
country.
We have mentioned selection by society as possible, but not a very
important fact. The execution of criminals and their imprisonment,
so far as it prevents reproduction, are cases of such selection. In
crueller ages, with numerous capital crimes and many executions a
year, this may have been an important mode of selection. Now it
amounts to little. Perhaps public opinion, also, puts certain mem-
bers of society under some selective disadvantage.
Francis Galton has proposed that society deliberately undertake
the improvement of the human stock.1* He would have certificates of
fitness issued and suggests the giving of marriage portions to girls of
superior personal qualities and good family. Such a program of
“eugenics ” would operate through reproductive selection. It is an
interesting proposition, if not very practical. Hitherto the method of
evolution has been essentially negative, that is, primarily the elimina-
tion of the unfit. Will any human society ever be wise enough posi-
tively to map out the line which further evolution shall take? The
definition of what is undesirable is much simpler than the definition
of what is most desirable.
In the above brief review of the incidence of selection in man, it
has been the intention of the writer merely to give examples illus-
trative and suggestive of the applicability and importance of the dif-
* POPULAR SCIENCE MonTHLY, Vol. 60, article at page 218. He has also
brought up the subject before the British Sociological Society. Reports of the
discussion are printed in recent volumes of the American Journal of Sociology,
as well as in the society’s Sociological Papers.
82 POPULAR. SCIENCE MONTHLY
ferent forms of selection for the study of man and his social evolution.
An extended treatment of this subject is one of the great desiderata
of the science of sociology, the half of which will be the theory of
selection in its application to man.
A logical and seemingly very forcible objection to the idea that
selection applies to man is contained in the contention that heredity
has nothing to do with the higher, which are the distinctively human,
qualities in human nature. But the common-sense and practical view
is that even the highest intellectual and moral qualities are to some
extent inheritable. Men look for family traits not merely in the
physical features of children. There is certainly a tendency to the
inheritance of insanity, which shows that mind is subject to heredity.
It is enough for the purposes of the sociologist if the inheritance of
the properly human qualities be only statistically true, that is, true
for the mass, though not true of every individual. In fact, this is
what we should expect. For a number of reasons variation should be
at its best in characteristics distinctively human. Biologically viewed,
man is like a domestic animal and is a dominant species, both of which
facts imply great variability. There is also approximately unre-
stricted crossing in mankind. The environment, that is complex civi-
lized society, demands diverse specialized qualities; so that the external
conditions favor multilinear evolution. The distinctively human qual-
ities have been latest acquired and are therefore most subject to varia-
tion. In man, moreover, as the most socialized of animals, much may
be left to imitation and education, that is, to “ social heredity.” Hence
there is less need of a hard and fast physical heredity.
The fact that the line of least resistance in development is the
resultant of two sets of forces, internal (variation and heredity) and
environmental (selection), must not be allowed for an instant to slip
the mind. The interdependence and delicacy of adjustment between
these forces increases with the complexity of man’s higher, special
characteristics. Hence the apparent decrease in the importance of
heredity. The distinction between what is innate and what is acquired
often hinges on mere ease of enumeration of cases of apparent pre-
dominance, or relative independence,. of one or the other factor. Or
the results are referred to the least easily assumed to be constant
factor. Such is in practise man’s application of causation. Both
sorts of factors are always necessarily operative. It must be granted
that proper inheritance is a necessary precondition to the appearance
of noble qualities, and this alone concedes the presence and importance
of heredity. Both internal constitution and modifications from with-
out are determinants of development and man can no more get along
without the right sort of heredity now than ever. Complexity and
lack of fixity in development do not remove from the sphere of hered-
ity, though they do mean greater possibilities and greater likelihood
THE FORMS OF SELECTION 83
of variation. They do also give opportunity for the development of
a new set of factors in evolution, the socio-psychical. It can not be
too strongly emphasized, however, that these socio-psychic factors are
conditioned by their’ foundation in the innate qualities and capacities
of human nature, that is, in the characters given to men by selection.
It may be that the power of heredity is limited short of the powers
of evolution and development. But this does not seem to be true for
the higher moral qualities, nor for conspicuous intellectual power,
though it is perhaps well to add the caution that heredity appears to
be not yet thoroughly established for these qualities. But selection
itself can make heredity more stable. It would be enough for the
most utopian sociologist if all human beings could be brought up and
kept up, by the fixation of heredity, to the present highest level of
‘intellectual power and moral character. So much progress selection
may accomplish. Whether it does, depends on the adaptation of
human institutions to such remote ends.
The question as to the applicability of natural selection to man
can not be satisfactorily dealt with as one simple whole. Here as
elsewhere analysis is the necessary instrument of science. By analysis
we discover four distinct modes of selection: lethal, sexual, reproduc-
tive and group selection. We find, also, that these four forms have
very different sorts of applicability in the explanation of man’s evolu-
tion, past and present. Especially under present conditions it is re-
productive selection that most calls for consideration.
In these days “race suicide ” is a much talked of subject. There is
plenty of occasion for the discussion. But the fact that attracts
attention is not rightly called race suicide. Literally interpreted, race
suicide is an absurdity. The actual fact that is attracting attention
is a phase of reproductive selection. Its importance can hardly be
exaggerated. But it can be truly evaluated only as seen in its setting
as a phase of a form of selection. The fear of race suicide as a matter
of quantity of population is no more valid or justifiable—it is rather
far less justifiable—than the contrary and equally unanalytic fear of
over-population awakened in Malthus and his followers a century ago.
The question is not so much one of quantity, either by excess or defi-
ciency, as of quality of reproduction and of population. It is there-
fore a question of selection.. In this matter of selection in mankind
it is doubtless true that “ race suicide ”—if the term means the self-
elimination of certain classes of members of society—now plays the
most significant part.
84 POPULAR SCIENCE MONTHLY
ILLUSTRATIONS OF MEDIEVAL EARTH-SCIENCE
Dr. CHARLES R. EASTMAN
HARVARD UNIVERSITY
C’est vers le Moyen Age énorme et délicat,
Qwil faudrait que mon ceur en panne naviguat.
—PAUL VERLAINE.
VE experimental science dates only from the sixteenth cen-
tury. ‘The habit of interrogating nature, the application
throughout all departments of research of the observational and in-
ductive methods, the thirst for fresh discovery and invention, and the
irrepressible curiosity that inquires into the innermost recesses of the
wonderful world we live in, seeking to ascertain its laws and acquire
mastery over its forces—all these leading characteristics of modern
science were absent from its medieval prototype.
In reality, the so-called science of the middle ages is scarcely worthy
of the name. Infinitely inferior as compared with modern science, it
was still more crude, more distorted, more fantastic and illusory than
that of ancient times. Medieval man had no clear-eyed perception
of the visible world, actuality possessed for him little value, that
which really is and happens was without special significance in his eyes.
What the medieval man saw he interpreted as a symbol, what he heard
he understood as an allegory. Dante himself is our best witness that
cultivated men of his age esteemed the speculative hfe vastly superior
to the practical.
Under the conditions of hopeless barbarism that existed from the
seventh to the eleventh century there could be no real culture, and
intellectual activity continued at an extremely low ebb. Religion
absorbed almost all other occupations of the mind, faith was exalted
as a sovereign virtue, mere empirical knowledge was disdained and
rejected. As the Christian religion became the leading subject of
men’s thought and interest, so the principal business of their lives
throughout the middle ages was the salvation of their souls. External
conditions were unpropitious, subjective conditions inhibitory for the
development of scientific ideas. Hence it was inevitable that learning
should become decadent, and the proud record of ancient achievement
forgotten. Indeed, as early as the fourth century of our era, before
all relics of the old culture had disappeared, Eusebius wrote:
It is not ignorance which makes us think lightly of science in general, but con-
tempt for its useless labor, while we turn our souls to better things.
MEDIEVAL EARTH-SCIENCE 85
Two centuries later Pope Gregory the Great protested against the
study of pagan literature,
because the praise of Christ and the praise of Jove are not compatible in
one mouth.
Again in the tenth century, a period of utter stagnation, illumined by
scarcely a ray from classical antiquity, church dignitaries maintained
that
the successors of St. Peter wish for their teachers neither Plato nor Virgil, nor
Terence, nor any other of the philosophic cattle.
But with the revival of learning during the next two hundred years
came a change for the better, and medieval knowledge began to assume
a more positive character. Its science, still contaminated with the
errors and superstitions it had received from remote ages, gradually
became less chaotic, less fantastic and symbolic, less dominated by
theology, although for a long time after its subjection to scholastic
influences it remained, so to speak, Aristotelized. That is to say,
logical analysis was relied upon for ascertaining all manner of truth,
a complete system being devised toward that end by Raymond Lull.
The independent searching out and testing of actual facts, the process
of drawing general conclusions from concrete phenomena, were not
the methods employed by medieval schoolmen, with the one notable
exception of Roger Bacon.t It was commonly held that all truth may
be obtained by the use of reasoning alone; and “ that by analyzing and
combining the notions which common language brings before us, we
may learn all that we can know. ‘Thus logic came to include the
whole of science.” (Whewell.)
There can be no doubt that the universal reverence for Aristotle’s
authority, and blind acceptance of other accredited doctrines and
treatises, greatly retarded scientific progress. All men begin their
development with a childlike trust in authorities and examples, and as
science had to be regenerated de novo toward the end of the middle
ages, it is only natural that its beginnings should appear to us lament-
ably weak and puerile. Moreover, the system of instruction employed
by Catholic schoolmen was not conducive to real enlightenment. The
real difficulty, as has been pointed out, is that “not life and nature
were the basis of instruction and science, but books. Not the thing
itself was the object of inquiry, but the word; not experiment disclosed
the truth, but dialectics.” Authority had greater weight than argu-
ments, and in the last resort authority depended more upon a master’s
reputation than on his knowledge. Finally, we must not forget the
restraint imposed upon medieval philosophy by theology. Religious
discipline required that the results of human reason should be con-
*On Baconian contributions to science, see Professor Holden’s interesting
article in PopuLAR ScIENCE Montutiy for January, 1902 (60: 255).
86 POPULAR SCIENCE MONTHLY
formable to church dogmas, and woe to him who dared insinuate that
whatever was taught by the church was not also the logical outcome
of human reasoning.
Thus, freedom of the intellect had to contend not only with formid-
able difficulties imposed from without, but with no less effective
hindrances, wrong conceptions and limitations that came from within.
While these conditions lasted the net result was sterility. In time,
however, that innate longing to escape the bonds of ignorance, that
patient and zealous striving after truth which stimulates all lofty en-
deavor, these impulses gradually became more assertive; and, tri-
umphant at last, gave rise to our modern critical science.
It would be impossible to attempt here even a superficial sketch cf
the remarkable rise and expansion of empirical knowledge that took
place during the twelfth and thirteenth centuries, by virtue of
which Dante’s era merits its appellation of secolo d’oro. The innu-
merable commentaries that have been devoted to the most striking
figure of the middle ages attest the difficulty of preparing an adequate
survey of contemporary knowledge. Remember, too, that the peerless
poet stands out from the midst of a notable company of erudite laymen
and clerical scholars. It will be sufficient to recall only such names as
those of Ser Brunetto Latini, whom Dante expressly calls his ‘ master,’
and whose encyclopedic work embraces practically all the science of his
time; Albertus Magnus, often styled the “ Universal Doctor,” and his
famous disciple, St. Thomas Aquinas; those brilliant Anglican geniuses.
Roger Bacon and William of Ockham, forerunners of the modern spirit
of investigation; and those twain Italian luminaries whose souls were
fired with the glow of ancient and of the newly revived culture,
Petrarch and Boccaccio. Still earlier, and entirely independent. of
Christian influences, the Arabian circle of sciences had gained new
luster from Averroés, its chief exponent and adornment.
But. besides these greater lights there shone many of feebler in-
tensity, yet none the less worthy of grateful esteem, since their combined
rays helped toward clearness of vision. There was one erudite scholar,
for instance, who was formerly rated as a mere imitator and plagiarist of
Albert of Bollstiidt; whereas we now know that the reverse was true,
in that the master drew largely upon his disciple for materials in
preparing his huge compendium on natural history. This was Thomas
of Cantimpré, who wrote during the third and fourth decades of the
thirteenth century, and whose works were widely read and translated.
His chief contribution to science was a treatise entitled “ De naturis
rerum,” which served at once for the source and model of Conrad of
Megenburg’s “ Buch der Natur,” the earliest of its kind to be written in
the German vernacular.*
Conrad, however, considerably amplified the work of his Brabant
MEDIEVAL EARTH-SCIENCE 87
predecessor, and is further interesting to us for displaying power of
original observation. He had also the happy faculty of meditating
upon his observations, and was by no means averse to offering his own
explanation of the causes of various phenomena. Accordingly, it has
seemed worth while to reproduce a passage from this author relating
ALBERTUS MAGNUS.
to earthquakes, for the reason that it offers a very fair presentment of
the status of geological speculation among medieval schoolmen. The
second illustration has been selected with similar intent from the
“ Cosmography ” of Ristoro of Arezzo, written in 1282. Dante’s ac-
quaintance with Ristoro’s work has not been definitely proved, but is
regarded by competent authorities as highly probable.
24 modern German edition of the text was published by H. Schulz in 1897.
The most recent study of Thomas Cantipratanus is by a Dutch author, Dr. W.
A. Van der Vet, entitled “ Het Bienboée van Thomas van Cantimpré,” 1902.
88 POPULAR SCIENCE MONTHLY
ON THE NATURE AND CAUSES OF EARTHQUAKES
(Extract from Conrad of Megenburg’s “ Buch der Natur,” 1359)
The fourth and nethermost element is the sphere of earth. Its
distance from the firmament [of the fixed stars], as determined by
divers*scientific men, both pagan and Christian, is 309,375 miles. No
one can impugn the accuracy of this result, depending as it does upon
laborious calculation and the reduction of very delicate astronomical
observations. None but unlettered folk contemn such investigations.
Ignorant persons are unable to comprehend that a geometer may sta-
tion himself outside the town and accurately determine the height
of turrets within the town by means of angular measurement. Yet in
sooth is it possible. By a similar method we ascertain the distance
from earth to the starry heavens.
The earth is the only one of the four elements that is favorably
adapted for man; it is peculiarly his province, as heaven is the habita-
tion of God and the angels. The earth element alone is innocuous to
man, the others often injure him. For water drowns, foul air suf-
focates, and fire consumes him. The earth is by nature cold and dry,
externally harsh, yet concealing within its bosom full many beauteous
things, such as precious stones and the noble metals. By a like token,
many an humble citizen may possess jewels within his heart. The
earth-realm is very luxuriant, and the only one that brings forth fruit
in abundance. How many miles it measures in circumference, and
the extent of its diameter, I have already set forth in another place,*
and likewise have explained the cause thereof, why it does not fall
away from its abode in space. As the heart is lodged within the
mid-portion of the body, so is hell seated at the center of the earth.
Thus do our reverend masters instruct us.*
Oft it happens that the earth trembles, causing cities to fall, and
mountains to crash together. Simple folk know not the reason of this,
but foolishly believe that the earth is borne up by a mighty fish, which
carries his tail in his mouth; and the turning or moving about of this
creature causes the earth to shake. But this isa myth.® Remains for
*Conrad’s data as to the dimensions of the earth and its distance from the
several heavens are possibly derived from the same source as Dante’s and
Brunetto Latini’s, namely, the Elementa Astronomica of Alfraganus, cap. XXi.
Roger Bacon’s calculation of the earth’s circumference was only one-fourteenth
smaller than the truth, and Ristoro’s independent reckoning of the latitude of
Arezzo, in 1282, was in error to the extent of little more than one degree.
*S. Thomas Aquinas teaches with regard to hell that it is probably situated
under the earth and that its fire is of the same kind as terrestrial fire, an ignis
corporeus. (Summa theol., Suppl., Pars iii., Qu. 97.)
® Probably an echo of ancient Titan myths, though having affinity also with
the Arabian voyages of Sinbad. The existence of a great sea-monster was a
very popular legend in the middle ages, the creature being sometimes identified
MEDIEVAL EARTH-SCIENCE 89
us to give true relation of this marvel, and to explain the cause of its
occurrence. Now earthquakes originate in this manner, that within
subterranean cavities, and especially in the interior recesses of moun-
tains, vapors are compacted together in such vast quantities, and under
such tremendous pressure, as to exceed at times all means for restrain-
ing them. They crowd in all directions against the walls of the in-
terior caverns, fly from one to another of them, and continue to aug-
ment in volume until they have surcharged an entire mountain. The
increase of these vapors is occasioned by the stars, especially by Mars
and Jupiter. When now the vapors are confined for a long period
within the subterranean cavities, their pressure becomes so prodigious
that they burst forth with enormous violence and rend mountains
asunder. Even when they fail to break completely through the crust
they are yet able to produce a severe shock.
There are two kinds of earthquakes. Those of the first sort cause
a gentle swaying of the ground lke the rolling of a ship at sea. This
movement is least destructive of fortresses and houses. The reason
for this is that the vapors upheave the crust in a single supreme effort,
and thereupon relapse in energy. Disturbances of the second sort are
those which produce tremblings of the crust by means of a succession
of sudden shocks, the motion being comparable to that of hand-shaking.
Their effect upon buildings is most disastrous, solid masonry being
shattered and hurled down by them. ‘The process involved in this
class of earthquakes is that one vapor rushes in pursuit of another,
and drives it violently from side to side.
That the causes are verily as we have described is supported by
abundant evidence. First, when a catastrophe is about to happen, pre-
monitory rumblings are heard that resemble nothing so much as the
noise of an hundred thousand hissing serpents, stridulating in chorus;
or again there may be bellowings like unto those of maddened bulls.
These sounds proceed from the violent agitation of the vapors within the
interior of the earth, forcing their way through crevices and struggling
to become liberated. Secondly, the sun shines feebly, or appears
reddish-hued by day, owing to the heavy pall of smoke that rises from
the earth’s surface and obscures the view. Thirdly, it is well known
that immediately after an earthquake the air becomes virulent, so
as Cetus (the whale), or the Craken of the north, or again merely as a gigantic
fish. In the bestiary of Philippe de Thaun the incident is given in a few lines
beginning:
“ Cetus ceo est mult grant beste, tut tens en mer converse,
Le sablun de mer prent, sur son dos l’estent.”
fhe monster reappears under the name of Jascom or Jasconius in the old
Celtic legend of st. Brandan:
“ Jascom he is i-cleped, and fondeth nite and dai
To putte his tail in his mouth, ac for gretnisse he ne mai.”
go POPULAR SCIENCE MONTHLY
that many people die. The reason for this is that when the vapors
have been confined for a long time underground they become fetid and
noxious. The same thing happens in wells that have long remained
foul and choked up, for when these are again opened for cleansing
purposes, the first workmen to descend into them are often asphyxiated.
Many wondrous effects are wrought by earthquakes. Note first
that the vapors escaping at such times frequently transform men and
beasts into stone, especially into rock-salt, and this is very liable to
_ happen in mountainous regions or in the vicinity of salt-mines. This
lapidifying property of the vapors is due to their enormous condensa-
tion. So affirm the eminent doctors of science. And I myself have
heard it reported that high up in the Alps as many as fifty neatherds
with their beeves were turned to stone in this manner; with them also
was a dairymaid engaged in drawing milk, and transfixed in that atti-
tude at the selfsame moment when all were petrified. Note secondly
that earthquakes are often accompanied by flames and glowing ashes
which shoot up from below and ignite houses, villages and towns.
Yet a third accompaniment of earthquakes is the belching up from
below of vast quantities of sand and dust, sufficient to engulf whole
cities.
CONCERNING THE PROCESSES OF MOUNTAIN FoRMATION
(From Book VI., Chapter 8, of Ristoro d’Arezzo’s “ Composizione del
Mondo,” 1282)
And we have ourselves discovered and excavated near the summit
of an exceedingly high mountain remains of numerous species of fish
and other creatures, such as various members of the shark tribe, and
even shells that had retained traces of their original coloration. And
in the same locality are found also different varieties of sand, gravel,
water-worn pebbles and boulders scattered about in great profusion,
apparently deposited by aqueous agency: and this we consider proof
that the mountain in question was formed by the flood.
And we have at another time ascended a lofty mountain whose
summit was composed of a thick stratum of very hard rock, of fer-
ruginous color, and whose structure was as clearly the work of design
as a vase is evidence of the potter’s art. A huge castle, almost a citadel
in fact, rested upon cliffs of this formation, and all the strata out-
cropping at that altitude reposed upon other beds that had plainly
been formed by water action. And the proof thereof consists in this,
namely, that as one examines the strata exposed along the flanks of
the mountain, one finds in certain places earth commingled with sand,
at others tufa along with stones rounded by water action, and again
elsewhere, quantities of fish remains belonging to various species, and
also numerous other beds of divers kinds; all of which proves that
this particular mountain, and the others already mentioned, near
MEDIEVAL EARTH-SCIENCE gI
whose summits occur fish remains, were formed by the deluge. Yet
this same catastrophe may very readily have formed other mountains
which do not contain sand and fish remains, the difference being occa-
sioned by the nature of sediments existing in particular localities.
Such, then, is the process of mountain-making. And the reason why
mountain chains must have been formerly sea-bottom, or deposited in
marine basins [before their upheaval], is that the volume of fos-
siliferous and arenaceous sediments is far too considerable to be as-
cribed to the agency of rivers, or of any other body of water inferior
to the sea itself... .
[ The continuation of this passage is devoted to seismic and volcanic
phenomena, which are discussed more particularly in a subsequent sec-
tion (Distinzione vii. parte iv.). The author expresses himself upon
these questions, as well as upon the meaning of fossils, erosive action
of water in molding land surfaces, scintillation of the stars, etc., in
eminently scientific manner. His elder contemporaries, Albertus
Magnus and Vincent of Beauvais, also note the existence and teaching
of fossil remains. Similar inferences are drawn by Cecco d’Ascoli,
the ill-fated author of l’Acerba and envious rival of Dante in the latter
part of the thirteenth and first quarter of the fourteenth century. ]
g2 POPULAR
THE PROGRESS OF
BENJAMIN FRANKLIN AND THE
AMERICAN PHILOSOPHICAL
SOCIETY
THE celebration of the two-hundredth
anniversary of the birth of Franklin,
held at Philadelphia last year under the
auspices of the American Philosophical
Society, has now been completed by the
publication of a volume containing a
full account of the proceedings. These
proceedings were unusually impressive.
The Pennsylvania legislature made an
appropriation of $20,000, and all the
arrangements were carried out with ad-
skill the of the
society. The commemorative addresses
by Dr. H. H. Furness, President Chas.
W. Eliot and the Hon. Joseph H. Choate
are models of thought and expression.
mirable by officers
A special session was held to honor
Franklin’s researches in electricity,
when addresses were made by Professor
K. L. Nichols Ernest
Rutherford. It is not necessary to re-
peat here all the features of the pro-
and Professor
gram, but attention may be called to |
circumstances which give opportunity
to reproduce from the volume two in- |
teresting portraits of Franklin.
BRINE
“> LEN
SCIENCE MONTHLY
SCIENCE
At the instance of the committee of the
society, the congress passed an act en-
abling the secretary of state to have
to
two-hundredth anniversary of the birth
struck a medal commemorate the
of Franklin, one single impression in
gold to be presented to the Republic of
| France and one hundred and fifty copies
in bronze to be distributed by the presi-
dent of the United States and the Amer-
ican Philosophical Society.
The medal,
designed by Louis and Augustus St.
Gaudens, has under the face of Frank-
lin the words “printer, philosopher,
scientist, statesman, diplomatist,” while
on the reverse history writes in the
presence of Literature, Science and Phi-
losophy. This medal was presented by
the secretary of state, the Hon. Elihu
Root, and accepted by his excellency the
French Ambassador, M. Jusserand.
The occasion of the Franklin bicen-
tenary was taken by Lord Grey to pre-
sent to the United States a portrait of
Franklin painted in London in 1759 by
Benjamin Wilson. This portrait hung
in Franklin’s house in Philadelphia,
whence it was taken by Major André
|} and given by him to the great grand-
THE FRANKLIN MEDAL.
THE PROGRESS OF SCIENCE
PORTRAIT OF FRANKLIN PAINTED BY BENJAMIN WILSON IN 1759.
father of Lord Grey. In the letter,
read by the Hon. Joseph Choate, when |
the portrait was first shown after its
return to this country, Lord Grey says:
written
1788, to
* Our
In a letter from Franklin,
from Philadelphia, October 23,
Madame Lavoisier, he says:
English Enemies, when they
possession of this city and my home, |
made a prisoner of my portrait and ear-
ried it off with them.”
As your English friend, I desire to
give my prisoner, after the lapse of
130 years, his liberty, and shall be ob-
liged if you will name the officer into
whose custody you wish me to deliver
him. If agreeable to you, I should be
| much pleased if he should find a final
were in|
resting place in The White House, but
I leave this to your judgment.
POPULAR
SCIENCE
MONTHLY
BRIDGE OVER THE BRONX RIVER, BETWEEN THE NEW YORK FPOTANICAL GARDEN AND
THE NEW YORK GEOLOGICAL PARK, DEDICATED TO THE MEMORY OF LINN®US
THE CELEBRATION OF THE BI-
CENTENARY OF THE BIRTH
OF LINNAAUS BY THE NEW
YORK ACADEMY OF
SCIENCES
THE two-hundredth anniversary of
the birth of Carolus Linneus has
been celebrated throughout the
world, notably by the Royal Uni-
versity of Upsala, where he was
professor from 1741 to his death in
1774, and the Royal Swedish Academy
of Sciences, of which he was the first
president. Of the many local celebra-
tions, we may select for mention that
under the auspices of the New York
Academy of Sciences, where the ar-
rangements were more elaborate than
elsewhere in America. The morning of
| erection,
Mr. F. A. Lucas and others. The
building of the New York Aquarium
commemorated the centennial of its
and the collections
opened for the first time by night.
were
Of special interest was the dedication
to the memory of Linnzus of a bridge
over the Bronx River on Pelham Park-
way between the New York Botanical
Garden and the New York Zoological
Park. The bronze tablet, presented by
Dr. N. L. Britton for the New York
Academy of Sciences, bears these words:
Linnus, botanist and zoologist, born Ra-
shult, Sweden, May 23, 1707; died Hammarby,
Sweden, February 18, 1778. This bridge was
dedicated by the New York Academy of Sci-
| ences, May 23, 1907.
May 23 was devoted to exercises in the |
American Museum of Natural History,
the afternoon to exercises at the New
York Botanical Garden and the New
York Zoological Park, the evening to
exercises in the Brooklyn Institute of
Arts and Sciences and the New York
Aquarium. At these different scien-
tific institutions addresses were made
by Dr. J. A. Allen, Dr. P. A. Rydberg,
A the
New York Academy of Sciences by the
cable message addressed to
Swedish Academy reads as follows:
To every Swede, and especially to our so-
ciety, whose honor it is to count Carl von
Linné as the greatest ornament of its ranks, it
is highly gratifying to see that the memory of
the man whom all the world recognizes as
Princeps Botanicorum is also held so sacred
across the Atlantic that the two hundredth
anniversary of his birth will be celebrated
there with the same love and reverence as in
his own country. And we fully appreciate the
delicate courtesy which has led you to immor-
THE PROGRESS
talize his name among you by dedicating to
him the beautiful bridge which unites your
Botanical Garden with the Zoological Park.
THE STATE UNIVERSITIES AND
THE SYSTEM OF RETIRING
ALLOWANCES OF THE
CARNEGIE FOUNDA-
TION
In Mr. Carnegie’s original letter giv-
ing $10,000,000 to establish a fund for
pensioning professors, denominational
institutions, on the one hand, and
state institutions, on the other, were
excluded. In the act of incorporation,
however, the question of the state insti-
tutions was left open, and it was at one
time reported by the newspapers that
Mr. Carnegie would add five million
dollars to the foundation in order that
they might be included. But it now
appears that the opposite policy will
be followed. The documents on the
subject presented to the trustees have
been printed as a bulletin of the Car-
negie Foundation. This bulletin, in ad-
dition to giving the grounds that have
been urged for and against the policy
of granting pensions to professors in
the state institutions, contains some in-
teresting data in regard to the develop-
ment of these institutions.
The executive committee of the Na-
tional Association of State Univer-
sities drew up a statement for the
trustees in which they urge the follow-
ing reasons for including these universi-
ties under the auspices of the fund:
State universities are not controlled by
religious denominations; they maintain
college standards based on the high
school; they have an assured income
equal to the productive endowment re-
quired for private foundations; state
institutions can not establish a pension
fund as this might raise the whole |
question of pensions for state officers;
the omission of these institutions dis-
criminates against the professors who
have served them; the plan would not
weaken support by the states. Memo-
randa in favor of granting allowances
OF SCIENCE 95
| were also presented by Dr. Maurice
Hutton, acting president of the Uni-
versity of Toronto, and by Professor
Henry T. Eddy, dean of the graduate
school of the University of Minnesota.
_ Dr. Henry 8. Pritchett, president of
‘the foundation, discusses these papers,
and comes to an adverse conclusion.
He holds that from the point of view
of general policy, professors in the state
institutions should receive retiring
allowances, but that these should be
established by the states themselves, as
the granting of allowances by a private
‘agency might lessen the sense of re-
sponsibility of the states for educa-
tional support. He states that to add
to the list of accepted institutions all
state universities would be to complete
the list of institutions for which the
foundation can provide an adequate
retiring system. He holds that the
award of pensions to a large number
of representative institutions by the
foundation will make the plan part of
the American Educational
which other institutions
sarily follow.
It may be that in this matter the
trustees of the Carnegie Foundation,
nearly all of whom are presidents of
| private institutions, are not entirely
disinterested. Some of them have
given occasion for such inference by
their attitude toward a national uni-
versity, which Mr. Carnegie at one time
planned to endow. In the establishment
of libraries, Mr. Carnegie has not been
indisposed to
System,
will neces-
cooperate with insti-
tutions supported by taxation. How-
ever, it does not follow that in the end
it would have been to the advantage
of the state institutions to have been
placed under the Carnegie Founda-
tion. There are dangers, as well as
advantages in centralization and uni-
formity. It by no means follows that
compulsory retirement at
sixty-five, on part salary
plan. Perhaps the state
may adopt the German
the age of
is the best
universities
system, by
96 POPULAR
which the appointment of a professor |
is for life, he being excused from ac-
tive service when disabled by illness or |
old age.
SCIENCE MONTHLY
Agassiz was unveiled under the aus-
pices of the American Association for
the Advancement of Science with brief
_addresses by Dr. Charles D. Walcott,
secretary of the Smithsonian Institu-
SCIENTIFIC ITEMS
We record with regret the deaths of
Sir Benjamin Baker, F.R.S., the emi-|
nent british engineer; of Dr. Alex- |
ander Buchan, F.R.S., the Scottish |
meteorologist; of Sir Joseph Fayrer,
known for his pathological work in
India, and Dr. Charles Féré, known |
for his researches in neurology and |
psychiatry. |
THE honorary freedom of the City of
London is to be conferred on Lord
Lister.—The gold medal of the Lin- |
nean Society, London, has been awarded |
to Dr. Melchior Treub, director of the
Botanical Garden at Buitenzorg.
A SECOND series of tablets was un-)
veiled in the Hall of Fame, of New)
York University, on Memorial Day, |
May 30. Addresses were made by)
Governor Hughes, of New York, and)
Governor Guild, of Massachusetts.
Among the twelve tablets unveiled was
one in memory of Maria Mitchell, the
astronomer, and one in memory of.
Louis Agassiz. The tablet in honor of
| elected, as follows:
tion, and Dr. Edward S. Morse, director
of the Peabody Institute of Science.
THE committee of one hundred, ap-
pointed by the American Association
the Advancement of Science to
further the promotion, of national in-
in health, met in New York
for
terest
City, April 18, and organized by the
adoption of rules, the election of officers
and the appointment of an executive
committee. Professor Irving Fisher, of
New Haven, presided as the temporary
chairman and was subsequently elected
president. Ten vice-presidents were
President Charles
W. Eliot, Harvard University; Dr.
Felix Adler, New York; Dr. William
H. Welch, Baltimore; Rev. Lyman Ab-
bott, New York; President James B.
Angell, University of Michigan; Miss
Jane Addams, Chicago; Hon. Joseph
H. Choate, New York; Rt. Rev. John
Ireland, St. Paul; Hon. Ben. B. Lind-
sey, Denver; Hon. John D. Long, Bos-
ton.
as oa Be
i Oee WA es © een. C5
NEO IN Ea
AUGUST, 1907
THE PROBLEM OF AGE, GROWTH AND DEATH
By CHARLES SEDGWICK MINOT, LL.D., D.Sc.
JAMES STILLMAN PROFESSOR OF COMPARATIVE ANATOMY IN THE HARVARD MEDICAL SCHOOL
II. CytromorPHosis. THE CELLULAR CHANGES OF AGE
Ladies and Gentlemen: I endeavored in my last lecture to picture
to you, so far as words could suffice to make a picture, something of
the anatomical condition of old age in man, and to indicate to you
further that the study merely of those anatomical conditions is not
enough to enable us to understand the problem we are tackling, but
that we must in addition extend the scope of our inquiry so that it
will include animals and plants, for since in all of these living beings
the change from youth to old age goes on, it follows that we can hardly
expect an adequate scientific solution of the problem of old age unless
we base it on broad foundations. By such breadth we shall make our
conclusion secure, and we shall know that our explanation is not of
the character of those explanations which I indicated to you in the last
lecture, which are so-called ‘ medical,’ and are applicable only to man,
but rather will have in our minds the character of a safe, sound and
trustworthy biological conclusion. The problem of age is indeed a
biological problem in its broadest sense, and we can not study, as we
now know, the problem of age without including in it also the con-
sideration of the problems of growth and the problems of death. I
hope to so entice you along in the consideration of the facts, which
I have to present, as to lead you gently but perceptibly to the con-
clusion that we can with the microscope now recognize in the living
parts of the body some of those characteristics which result in old age.
Old age has for its foundation a condition which we can actually make
visible to the human eye. As a step towards this conclusion, I desire
to show you this evening something in regard to the microscopic struc-
ture of the human body.
VOL. LXXI.—1
98 POPULAR SCIENCE MONTHLY
We now know that the bodies of all animals and plants are con-
stituted of minute units so small that they can not be distinguished
by the naked eye, although they can be readily demonstrated by the
microscope. These units have long been known to naturalists by the
name of cells. The discovery of the cellular constitution of living
Fic. 3. CELLS FROM THE MoutH (ORAL EPITHELIUM) OF THE SALAMANDER, to SLOW the
phases of cell division or mitosis.
bodies marks one of the great epochs in science, and every teacher who
has had occasion to deal in his lectures with the history of the bio-
logical sciences finds it necessary to dwell upon this great discovery. It
was first shown to be true of plants, and shortly after likewise of
animals. The date of the latter discovery was 1839. We owe it to
AGE, GROWTH AND DEATH 99
Theodor Schwann, whose name will therefore ever be honored by all
investigators of vital phenomena. What the atom is to the chemist,
the cell is to the naturalist. Every cell consists of two essential parts.
There is an inner central kernel which is known by the technical name
of nucleus, and a covering mass of living material which is termed the
protoplasm and constitutes the body of the cell. I will now call for
the first of our lantern slides to be thrown upon the screen. It presents
to you pictures of the cells as they are found lining the mouth of
the European salamander. The two figures at the top illustrate very
clearly the elements of the cell. The protoplasm forms a mass, offer-
ing in this view no very distinctive characteristics, and therefore offer-
ing a somewhat marked contrast with the nucleus which presents in
its interior a number of granules and threads. Every nucleus consists
of a membrane by which it is separated from the protoplasm, and three
internal constituents: First, a network of living material, more or less
intermingled with which is a second special substance, chromatin,
which owes its name to the very marked affinity which it displays for
the various artificial colormg matters which are employed in micro-
scopical research. The third of the internal nuclear constituents we
may call the sap, the fluid material which fills out the meshes of the
network. Later on we shall have occasion to study somewhat more
carefully the principal variations which nuclei of different kinds may
present to us, and we shall learn from such study that we may derive
seme further insight into the rapidity of development and the nature
of the changes which result in old age. While the picture is upon the
screen, I wish to call your attention to the other figures which illus-
trate the process of cell multiplication. As you regard them you wilt
notice in the succession of illustrations that the nucleus has greatly
changed its appearance. The substance of the nucleus has gathered
into separate granules, each of which is termed a chromosome. These
chromosomes are very conspicuous under the microscope, because they
absorb artificial stains of many sorts with great avidity and stand out
therefore conspicuously colored in our microscopic preparations. They
are much more conspicuous than is the substance of the resting nucleus.
And this fact, that we can readily distinguish the dividing from the
resting nucleus under the microscope, we shall take advantage of later
on, for it offers us a means of investigating the rate of growth in
various parts of the body. I should like, therefore, to emphasize the
fact at the present time sufficiently to be sure that it will remain in
your minds until the later lecture in which we shall make practical
use of our acquaintance with it. It is unnecessary for our purposes
tc enter into a detailed description of the complicated processes of cell
division. But let me point out to you that the end result is that
where we have one cell we get as the result of division—two; but the
100 POPULAR SCIENCE MONTHLY
two divided cells are smaller than the mother cell and have smaller
nuclei. They will, however, presently grow up and attain the size of
their parent.
Every cell is a unit both anatomically and physiologically. It has
a certain individuality of its own. In many cases cells are found to
be isolated or separated completely from one another. But, on the
other hand, we also find numerous instances in which the living sub-
stance of one cell is directly continuous with that of another. When
the cells are thus related, we speak of the union of cells as syncytium.
Of this I offer you an illustration in the second picture upon the screen,
which represents the embryonic connective tissue of man. In this you
can see the prolongations of the protoplasm of a single cell body uniting
with the similar prolongations from other cell bodies, the cells them-
selves thus forming, as it were, a continuous network with broad meshes
between the connecting threads of protoplasm. The spaces or meshes
are, however, not entirely vacant, but contain fine lines which corre-
spond to the existence of fibrils, which are characteristic of connective
tissue and at the stage of development represented in this picture, are
beginning to appear. It is fibrils of this sort which we find as the
main elements in the constitution of sinews and tendons, as, for in-
stance, the tendon of Achilles, at the heel. In a very young body we
find there are but few fibrils; in the adult body an immense number.
There is, in fact, as you probably all know, a constant growth of
cells; and this growth implies also, naturally, their multiplication.
There has been in each of us an immense number of successive cell
Fic. 4. EXAMPLE OF A SYNCYTIUM. Embryonic connective tissue from the umbilical cord
ofa human embryo of about three months, magnified about 400 diameters, ¢, c, cells; /, inter_
cellular fibrils.
AGH, GROWTH AND DEATH Iol
generations, and at the present time a multiplication of cells is going
on in every one of us. It never entirely ceases as long as life continues.
The development of the body, however, does not consist only of the
growth and multiplication of cells, but also involves changes in the
very nature of the cells, alterations in their structure. Cells in us are
of many different sorts, but in early stages of development they are of
few sorts. Moreover, in the early stages we find the cells all more or
less alike. They do not differ from one another. Hence comes the
technical term of differentiation, to designate the modifications which
cells undergo with advancing age. At first cells are alike; in older
individuals the cells have become of different sorts, they have been
differentiated into various classes. This whole phenomenon of cell
Fic. 5. THREE TRANSVERSE SECTIONS THROUGH A RABBIT EMBRYO OF SEVEN AND ONE
HALF DAYys, from series 622 of the Harvard Embryological Collection. A, section 247 across the
anterior part of the germinal area. B, section 260 across the middle region of the germinal
area. C, section 381, through the posterior part of the germinal area. Magnified 300 diameters.
change is comprehensively designated by the single word, cytomorphosis,
which is derived from two Greek words meaning cell and form, respect-
ively. A correct understanding of the conception cytomorphosis is an
indispensable preliminary to any comprehension of the phenomena of
102 POPULAR SCIENCE MONTHLY
development of animal or plant structure. I shall endeavor, therefore,
now to give you some insight into the phenomena of cytomorphosis as
regarded by the scientific biologist. The first cells which are produced
are those which form the young embryo. We speak of them, therefore,
as embryonic cells, or cells of the embryonic type. Our next picture
illustrates the actual character of such cells as seen with the microscope,
for it represents a series of sections through the body of a rabbit
embryo, the development of which has lasted only seven and one half
days. You will notice at once the simplicity of the structure. There
are not yet present any of those parts which we can properly designate
as organs. The cells have been produced by their own multiplication
and are not yet so numerous but that they could be readily actually
counted. They are spread out in somewhat definite layers or sheets.
but beyond that they show no definite arrangement which is likely to
attract your attention. That which I wish you particularly to observe
is that in every part of each of these sections the cells appear very much
alike. The nuclei are all similar in character, and for each of them
there is more or less protoplasm; but the
protoplasm in all parts of these young
rabbits is found to be very similar; and
indeed if we should pick out one of these
cells and place it by itself under the micro-
scope, it would be impossible to tell what
part of the rabbit embryo it had been
taken from, so much do all the cells of
all the parts resemble one another. We
learn from this picture that the embryonic
cells are all very much alike, simple in
character, have relatively large nuclei, and
only a moderate amount of protoplasm
for each nucleus to complete the cell.
Very different is the condition of
affairs which we find when we turn to
ASE aril OES a AS the microscopic examination of the adult.
VERSE SECTION OF THE SPINALCorpd Did time permit it would be possible to
or 4 HUMAN EMBRYO OF Four MIL- study a succession of stages and show you
LIMETERS. Harvard Embryological : ee Sees .
Collection, series 714. The spinal that the condition which we are about to
cord’ at thisstage isa tubularatrac . study as extsune actually im the aciie
ture. The figure shows a portion of
the wall of the tube; the lefthand the result of a gradual progress and that
boundary of the figure corresponds jn successive stages of the individual we
to the inner surface of the tube. : .
can find successive stages of cell change;
but it will suffice for our immediate purpose to consider the results of
differentiation as they are shown to us by the study of the cells of
AGE, GROWTH AND DEATH 103
the adult. J will have thrown upon the screen for you a succession
of pictures illustrating various adult structures. The first is, how-
ever, a section of the embryonic spinal cord in which you can see
that much of the simple character of the embryonic cells is still kept.
All parts of the spinal cord, as the picture shows, are very much
alike, and the nuclei of the cells composing the spinal cord at this
stage are all essentially similar in appearance. What a contrast this
forms with our next picture, which shows us an isolated so-called
motor nerve cell from the adult spinal cord. It owes its name motor
to the fact that it produces a nerve fiber by which motor impulses
are conveyed from the
spinal cord to the mus-
cles of the body. The
cell has numerous elon-
gated branching _ proc-
esses stretching out in
various directions, but all
leading back towards the cen-
tral body in which the nucleus
is situated. These are the
processes which serve to carry
in the nervous impulses from
the periphery towards the
center of the cell, impulses
which in large part, if not ex-
clusively, are gathered up from
other nerve cells which act on
the motor element. At one
point there runs out a single
process of a different char-
acter. It is the true nerve
fiber, and forms the axis, as it
was formerly termed; or axon,
Fic. 7. COPY OF THE ORIGINAL FIGURE From 8 it is at present more usually
THE MEMOIR or DEITERS, in which the proof of named. of the nerve fiber as
the origin of the nerve fibers directly from the : oe :
nerve cells was first published. Thememoirisone We encounter it In an ordinary
of the classics of anatomy. It was issued posthu- - i ino
mously, for the author died young to the great loss ae e This. 7 single thread
of science. The figure represents a single isolated like prolongation of the nerve
motor nerve cell from the spinal cord of an ox, ==) Uae in ,
The single unbranched axon Ax, is readily distin- cell 5 likew ape constituted by
guisbed from the multiple branching dendrites. the living protoplasm and
serves to carry the impulses
away from the cell body and transmit them ultimately to the muscle
fibers which are to be stimulated to contraction. In the embryonic
104 POPULAR SCIENCE MONTHLY
a
Fic. 8 A LARGE CELL FROM THE SMALL BRAIN (CEREBELLUM) OF A MAN. It is usually
called a Puikinje’s cell. It was stained black throughout by what is known as the Golgi silver
method, hence shows nothing of its internal structure. After yon KO6lliker.
spinal cord none of these processes existed, and the amount of the
protoplasm in the nerve cell was very much smaller. As develop-
ment progressed, not only did the protoplasm body grow, but the
processes gradually grew out. Some of them branched so as to better
receive and collect the impulses; one of them remained single and
very much elongated, and acquired a somewhat different structure in
order to serve to carry the nervous impulses away. ‘The third picture?
shows us a section through the spinal cord of an adult fish. It has
been treated by a special stain in order to show how certain elements
of the spinal cord acquire a modification of their organization by which
they are adapted to serve as supports for the nervous elements proper.
They play in the microscopic structure the same supporting role which
the skeleton performs in the gross anatomy of the body as a whole.
They do not take an active part in the nervous functions proper.
None of the appearances which this figure offers for our consideration
can be recognized in any similar preparation of the embryonic cord.
Obviously, then, from the embryonic to the adult state in the spinal
cord there occurs a great differentiation. That which was alike
in all its parts has been so changed that we can readily see that
it consists of many different parts. A striking illustration of this
is afforded by the next picture, which represents one of the large
nerve cells which occur in the small brain, or cerebellum, that portion
of the central nervous system which the physiologists have demon-
* The illustration referred to is not reproduced in the text.
AGH, GROWTH AND DEATH 105
strated to be particularly concerned in the regulation and coordination
of movements. These large cells occur only in this portion of the
ects - > —_ -——_- — - - - : ---y
bH
Fig.3.
Fic. 9 VARIOUS KINDS OF HUMAN NERVE CELLS, AS DESCRIBED IN THE TEXT.
After Sobotta.
brain, and, as you see, differ greatly in appearance from the motor cells
of the type which we were considering a few moments ago. And, again,
106 POPULAR SCIENCE MONTHLY
another picture illustrates yet other peculiarities of the adult nerve
cells. The upper figures in this plate are taken from cells which have
been colored uniformly of a very dark hue, in consequence of which
e = ~ _ os a]
Fig.4.
j Fig. ye
Fic. 10. SECTIONS OF Four SOk1s OF EPITHELIUM, After Sobotta.
they are rendered so opaque that the nucleus which they really contain
is hidden from our view. But the deep artificial color makes it easy
to follow out the form of the cells and the ramifications of their long
processes. In the middle figures we have cells which have been stained
by another method which brings out very clearly to the eye the fact
AGE, GROWTH AND DEATH 107
that in the protoplasm of the cell there are scattered spots of substanceé
of a special sort. No such spots can be demonstrated in the elements
of the young embryonic nerve cells. To some fanciful observers the
spots, thus microscopically demonstrable in the nerve cells, recall the
spots which appear on the skin of leopards, and hence they have be-
stowed upon these minute particles the term tigroid substance. The
bottom figures represent the kind of nerve cells which occur upon the
roots of the spinal nerves. It is unnecessary to dwell upon their ap-
pearance, as the mere inspection of the figures shows at once that they
differ very much indeed from the other nerve cells we have considered.
We pass now to another group of structures, the tissues which are
known by the technical name of epithelia. You can notice immediately
in the figures from the skin that the appearances are very different
from those we have encountered in contemplating the cells of the
nervous system. And you can readily satisfy yourselves by the com-
parison with the various figures now before you, of the fact that these
epithelia are unlike one another. The figures represent epithelium,
respectively, first from the human ureter; second, from the respiratory
division of the human nose; third, from the human ductus epididymidis,
and fourth, from the pigment layer of the retina of the cat. We turn
now to a representation of a section of one of the orbital glands.
This is very instructive because we see not only that the cells which
compose the gland have acquired a special character of their own, but
also that they are not uniform in their appearances. This lack of
uniformity is due chiefly to the fact that the cells change their appear-
ance according to their functional state. We can actually see in these
cells under the microscope the material imbedded in their protoplasmic
Fic. 11. To SHOW THE ORBITAL GLANDS, A, with the material to form the secretion
accumulated within the cells. #, after loss of the material through prolonged secretion.
From R. Heidenhain after Lavdowsky.
108 POPULAR SCIENCE MONTHLY
®odies out of which the secretion, which is to be poured forth by the
cells, is to be manufactured. So long as that material for the secretion
is contained in the cells, the cells appear large, and their protoplasmic
bodies do not readily absorb certain of the staining matters, which the
microscopist is likely to apply to them. When, however, the accumu-
lated raw material has been changed into the secretion and discharged
from the gland, the cell is correspondingly reduced in bulk, and as you
see in this figure, it then takes up the stain with considerable avidity,
as does also the nucleus which has likewise become reduced in size.
These facts are very instructive for us, since they prove conclusively
that with the microscope we can see at least part of the peculiarities in
cells which are correlated with their functions. We can actually ob-
serve that the cells of the salivary glands are able to produce their
peculiar secretion because they contain a kind of substance which in
the embryonic cell does not appear at all. There is a visible differen-
tiation of these salivary cells from the simple stage of the embryonic
cells. Something similar to this can be recognized in the next of our
pictures representing a section of the gland properly known as the
pancreas, but which is sometimes termed the abdominal salivary gland
for the reason that it somewhat resembles the true salivary. In the
cells of the pancreas also we can see the material, which is to produce
the secretion, accumulated in the inner portion of the cell, and when it
is so accumulated the cell appears enlarged in size and the nucleus is
driven back towards the outer end of the cell where some unaltered
protoplasm is also accumulated. When this raw material is turned
yi
%
e
a
NS :
Fig. 12. Two SECTIONS OF THE PANCREATIC GLAND OF A DoG. A, the cells are enlarged
by the accumulation of material to form the secretion. JB, the cells are shrunk because there
has been prolonged secretion und part of their substance is lost. From R. Heidenhain.
AGH, GROWTH AND DEATH 109
over into secretion by a chemical change, it is discharged from the cell,
the cell loses in volume and in its shrunken state presents a very dif-.
ferent appearance, as is shown at B in the figure. It is necessary for
the cells to again elaborate the material for secretion before they can a
second time become functionally active. Here we have something of
the secret of the production of the various juices in the body revealed
to us. Other excellent examples of the differentiated condition of the
cells are afforded us by the examination of hairs, of which I will show
you two pictures. ‘The first represents a section through the human
Fe ire Shae Oe
Fic. 13. SECTION OF THE HUMAN SKIN, MADE SO THAT THE HAIRS ARE CUT LENGTHWISE.
skin taken in such a way that the hairs are themselves cut lengthwise
and you can see not only that each hair consists of various parts, but
also that the cells in these parts are unlike. The follicles within the
skin in which the hair is lodged likewise have walls with cells of various
sorts. It may interest you also to point out in the figure the little
muscle which runs from each hair to the overlying skin, so disposed
> »
that when the muscle contracts the “ particular hair will stand up on
se te) POPULAR SCIENCE MONTHLY
end.” Still more clearly does the variety of cells which actually exists
in a hair show in the following picture, which represents a-cross-section
of a hair, and its follicle, but more highly magnified than were the
hairs in the previous figure. The adult body consists of numerous
organs. These are joined together and kept in place by intervening
<<
a Wes
= P25 _ termes reed .
by
ee — : = ee “
Fic. 14. Cross SECTIUN OF THE ROOT OF A HAIR,
substance. The organs themselves consist of many separate parts which
are also joined by a substance which keeps them in place. This sub-
stance has received the appropriate name of connective tissue. We
find in the adult that it consists of a considerable number of structures.
There are cells and fibers of more than one kind, which have been pro-
duced by the cells themselves. There is more or less substance secreted
by the cell which helps to give consistency to the tissue. In some cases
this substance which is secreted by the cells becomes tougher and ac-
quires a new chemical character. Such is the case, for instance, with
cartilage. Or, again, you may see a still greater chemical meta-
morphosis going on in the material secreted by the cells in the case of
bone, where the substance is made tougher and stronger by the deposit
AGE, GROWTH AND DEATH
BEE
of caleareous material... Nothing like cartilage, nothing like bone, exists
in the early state of the embryo. They represent something different
and new. The next of our illustrations shows us a muscle fiber of the
sort which serves for our voluntary motions, which is connected typ-
ically with some part of the skeleton. These muscle fibers are elon-
gated structures. Eaeh fiber contains a con-
tractile substance different from protoplasm, and
which exists in the form of delicate fibrils which
run lengthwise in the muscle fibers, and is so
disposed, further, that a series of fine lines are
produced across the fiber itself, each line cor-
responding with a special sort of material dif-
ferent from the original protoplasm. These
cross lines give to the voluntary muscle fibers
a very characteristic appearance, in consequence
of which they are commonly designated in
scientific treatises by the term striated. A
striated muscle fiber is that which is under the
control of our will. It should perhaps be men-
tioned that the muscle fibers of the heart are
also striated, though they differ very much in
other respects from the true voluntary muscles. Fig 15. PART OF A
And last of all for this series of demonstrations, MUSCLE FIBER OF THE
I have chosen a representation of the retina.
One can see at the top of the figure the peculiar
cylindrical and developing projections, which
HUMAN TONGUETO SHOW
THE CROSS STRIATIONS.
Two nuclei are included,
one of which is shown at
the edge of the fiber, the
other in surface view.
In the adult striated
muscle fibers of mam-
mals the nuclei are su-
perficially placed.
are characteristic of a retina, projections which
are of especial interest because they represent
the apparatus by which the rays of light are
transformed into an actual sensory perception.
After this has been accomplished, the perception is transmitted into
the interior substance of the retina, and by the complication of the
figure you may judge a little of the complication of the arrangements
by which the transmission through this sensory organ is achieved, until
the perception is given off to a nerve fiber and carried to the brain.
There is not time to analyze all I might present to you of our present
knowledge concerning the structure of the retina. But it will, I think,
suffice for purposes of illustration to call your attention to the com-
plicated appearance of the section as a whole and to assure you that
nothing of the sort exists in the early stage of the embryo. To re-
capitulate, then, what we have learned from the consideration of these
pictures, we may say that in place of uniformity we now have diversity.
It should be added, to make the story complete, that the establishment
of this diversity has been gradually brought about, and that that which
112 POPULAR SCIENCE MONTHLY
eee Blood vessels.
Rod, outer seg-
ment.
Cone, outer seg-
ment.
Cone, inner seg-
ment.
Rod, inner seg-
ment.
Base of a cone
fiber.
Nucleus.
Nucleus.
Inner surface ot
the retina (to-
ward the light).
Fibers which f&
pass into the 2
optic nerve.
Blood vessels
Fic. 16. SECTION OF A HUMAN RETINA, from Stodhr’s Histology, sixth American edition.
Although the retina is very thin it comprises no less than twelve distinct layers; the outermost
layer is highly vascular. The pigment layer prevents the escape of light. The rods and cones
convert the light waves into a sensory impulse, which is transmitted through the remaining
layers of the retina to the optic nerve. The total structure is extremely complicated.
we call development is in reality nothing more than the making of
diversity out of uniformity. It is a process of differentiation. Dif-
ferentiation is indeed the fundamental phenomenon of life; it is the
central problem of all biological research, and if we understood fully
the nature of differentiation and the cause of it, we should have
probably got far along towards the solution of the final problem of
the nature of life itself.
The size of animals deserves a few moments of our time, for it is
intimately connected with our problem of growth and differentiation.
Cells do not differ greatly from one another in size. The range of
their dimensions is very limited. This is particularly true of the cells
of any given individual animal. Recent careful investigations have
been made upon the relation of the size of cells to the size of animals,
and it has been found that animals are not larger, one than another,
because their cells are larger, but because they have more of them.
This statement must be understood with certain necessary reservations.
There are some kinds of animals, like the star-fish, which have very
small cells; others, like frogs and toads, which have large cells; so
that a star-fish of the same bulk as a given frog would contain a great
many more cells. Our statement is true of allied animals. For ex-
ample, a large frog differs from a small frog, or a large dog from a
small dog by the number of the cells. An important exception to this
law is offered for our consideration by the cells of the central nervous
AGH, GROWTH AND DEATH Eta
system, the nerve cells properly so called. This is demonstrated by the
slide now before us, which shows us corresponding motor nerve cells
of twelve different animals arranged in the order of their size—the
elephant, the cow, the horse, man, the pig, the dog, the baboon, the cat,
the rabbit, the rat, the mouse, and a small bat. You recognize im-
Bos taurus Egquus caballus
72.4x56.7.. «GG 7.8 *5G.7
Homo ~——s Sus scrofa’ Canis familiaris
675*540 ———-63.4x51.3 66.8*45.4
toe
Cynocephalus babuin Felis domestica Lepus cuniculus domesticus
60.7* 56.3 98.0*%354..0 45x 36.4
ee
pc es @
Mus ratius albus = Mus musculus albus Atalapha cinerea
37.8*33.7 36.8x22.9 31.5x28.0
Fic. 17. Motor NERVE CELLS OF VARIOUS MAMMALS, all from the cervical region of the
spinal cord. The cells are represented, all uniformly magnified. After Irving Hardesty.
mediately that there is a proportion between the size of these cells
and the size of the respective species of animals. To a minor degree,
but much less markedly, there is a difference in the caliber and length
of the muscle fibers. But with these exceptions our statement is very
nearly exactly true, that the difference in size of animals does not in-
volve a difference in the size of their cells. For the purpose of the
study of development, which we are to make in these lectures, this uni-
VOL. LXx!I.—8
114 POPULAR SCIENCE MONTHLY
fermity in the size of cells is a great advantage, and enables us to speak
in general terms in regard to the growth of cells, and renders it
superfluous to stop and discuss for each part of the body the size of
the cells which compose it, or to seek to establish different principles
for different animals because their cells are not alike in size.
Now we pass to a totally different aspect of cell development, that
which is concerned with the degeneration of cells. For we find that,
Fig. 18, CHANGES IN THE NERVE CELLS WITH AGE.
after the differentiation has been accomplished, there is a tendency to
carry the change yet further and to make it so great that it goes
beyond perfection of structure, so far that the deterioration of the
cell comes as a consequence. Such cases of differentiation we speak of
as a degeneration, and it may occur in a very great number of ways.
Very frequently it comes about that the alteration in the structure of
the cell goes so far in adapting it to a special function that it is unable
to maintain itself in good physiological condition, and failing to keep
up its own nourishment it undergoes a gradual shrinkage which we
call atrophy. nee
va als LF,
a, Bix K | . is
me Sg hin BALSAM PEAKS uy
r° # ae ~ SY
ta Sry -S
“a a oy
THE BALSAM PEAKS—THE HEART OF THE SOUTHERN
APPALACHIANS
By SPENCER TROTTER
SWARTHMORE COLLEGE
An APPRECIATION
ROM a field near the upper end of the town you could see three
mountain peaks, two near together and one farther to the west,
that stood out sharply against the cool, yellow evening sky, less defined
when bathed in the shimmering bluish haze of diffuse sunlight or when
brushed by the trailing vapors of passing clouds, but at all times fas-
cinating in their lofty isolation and in the invitation which they held
to adventure and to explore. These were the Plott Balsams. Away
to the southeast, beyond Deep Gap on the farther side of Lickstone,
we knew of a trail that followed the crest-line of the Divide, higher and
higher until it reached the summit of the Richland Balsam, second
only to Mount Mitchell in the galaxy of the Southern Appalachian
peaks. Down the main street of the town one’s eye went beyond the
narrowing vista of houses, miles away to the blue uplift of Crabtree
Bald. To whatever point of the compass you might look there were
mountains, but the Balsams held the loadstone that drew us to their
summits. Some persons there were who declared that they could detect
a trace of balsamic fragrance when the wind was westerly, wafted from
the high peaks six miles away. JI, for one, could never reach this
exalted state of sense or of imagination, whichever it might be. No
man, however, is a competent judge of the condition of another’s sen-
sorium. It is enough if he follow his own nose and its teachings.
One Sunday in mid-June we essayed the Enos Plott Balsam by the
trail that a horse could follow to the summit. As we turned the corner
of a street, where the town fell away into the valley of the Richland,
a Carolina wren was proclaiming the joy of life in no uncertain voice.
This I remember, and also that the air was crystal clear and flooded
with sunlight. Our way led for some miles along a road that followed
the stream through the farming land of the valley, past an occasional
house and barn and the patch of tobacco that was grown for home
consumption. = AN
An \ Ay
Se ™~ — o*”
“ see
= > of %, \
= “N oe = Ne
= < y
@
= et reo one oe zy Se
te Wii ~ \
Fic. 5. Cross SECTION. SHOWING THE RELATIONS OF THE SECONDARY 10 THE MAIN CONE,
it is only when an occasional gust of wind partially lifts the steam that
one can get a glimpse of the floor of the crater. Descent into the crater
by way of the breach in the side is comparatively easy and is attended
with less danger than the view from the rim prophesied. The floor is
covered with scoriaceous lava equaling, if not exceeding, in ruggedness
that of the lava flow at the foot of the volcano. Steam with a tem-
SOME LITTLE KNOWN MEXICAN VOLCANOES 183
perature of about 130 degrees Fahrenheit and sulphur dioxide are
issuing from numerous fumaroles, some of which are lined with sulphur
crystals. The crater is comparatively small, having a diameter of little
over half a mile.
Recent Eruptions—In 1877, 1884 and 1885 minor eruptions oc-
curred. The last eruption of the voleano commenced in the month of
February, 1903, and practically ceased in May of the same year. Since
that time the only evidences of activity are the fumaroles from which
issue large quantities of steam and other gases. During this eruption
Fic. 6. FLANK OF TOLUCA.
(1903) a lava stream flowed down the slope of the volcano in a north-
west direction, but barely reached the foot of the volcano (see diagram),
where it dammed a small stream, thus forming a shallow pond.
The accompanying diagrammatic cross-section of the volcano shows
the relations of the secondary cone to the main cone, the position of the
lava flow of 1869, the edge of this flow (a), the rim of the old crater
(b), the lava flow of 1903, and the position and relative heights of
Colima and the Nevado of Colima (which may have been the remnant
of the rim of a great volcano long since destroyed). In the construc-
tion of this diagram, no attempt was made to draw the distances or
heights to scale, but to bring out the salient points as clearly as possible.
VoLcAno TOLUCA
In the midst of the valley of Toluca, the Nevado of Toluca (Xinan-
tecatl) towers almost 6,000 feet above the level of the plain and 14,833
184 POPULAR SCIENCE MONTHLY
Fig. 7. BARRANCA SHOWING STRATIFIED TUFF AND FOSSIL SOIL.
feet above the sea. It is called the Nevado, because usually its
summit is white with snow. This volcano is isolated, being sur-
rounded at some distance by volcanoes which have formed by the
accumulation of their ash and lava an almost enclosed basin. It is one
of the few high volcanoes of the world that can be ascended with ease,
since it is possible to make the journey to and into the crater on horse-
back in four or five hours. Because of the ease with which it may be
climbed the ascent has been made by a number of persons, the first of
whom was the great geographer and traveler Humboldt, who reached the
crater in 1803.
General Description—Voleano Toluca is underlaid by calcareous
rocks of Cretaceous age. The great mass of the volcano is composed
of many layers of ash of varying degrees of thickness which conform
quite closely to the slope. These layers of ash were apparently formed
partly by the ash which rained down during the eruptions and partly
by that which was carried down by streamlets and to a considerable ex-
tent in sheets during heavy rains. The accompanying photograph shows
the stratified character of the slope and also a stratum of fossil soil,
which in several of the “ barrancas ” or dry ravines is seen to be of con-
siderable thickness. From this evidence it is fair to conclude that the
last eruptions were preceded by a long period of inactivity, during which
a large quantity of organic material was mixed with the weathered ash.
Toluca has not been in eruption within historic times and at present
there are no signs of activity, even secondary effects, such as fumaroles
of steam and sulphur dioxide, being absent.
SOME LITTLE KNOWN MEXICAN VOLCANOES 185
To watch the change in vegetation from the plain to the summit of
the mountain is a constant pleasure. On the dry plain cactus and other
desert plants are common, but on the flanks of the mountain pines begin
and many bright-colored flowers. These, as one continues the ascent,
become shorter and more stunted, until in the crater the flower blossoms
an inch or thereabouts from the ground instead of one or two feet from
the ground, as is the case lower down. On the highest portions of the
rim vegetation is almost lacking.
The Crater.—The crater of the volcano is somewhat elliptical in
form, being a little more than a mile in its longest diameter and about
a third of a mile in its shortest. The crater rim is complete on all
sides, but is low on the side through which entrance is made. In
the bottom of the crater and 1,000 feet below the highest portion of the
rim are two beautifully clear lakes, the larger of which is almost one
fifth of a mile in diameter and has a maximum depth of thirty feet.
These two lakes are separated by a dome of compact andesite of con-
siderable height (see illustration). This dome is of especial interest,
because of its bearings upon the origin of the Mt. Pelée spike. There
seems to be little doubt, as T. Flores points out, that it is composed
of the lava which was forced up and out of the vent after the last
eruption and which now closes it and stands above the floor of the
crater.
Comparison with Mt. Pelée—lIt was suggested by Dr. E. O. Hovey
that the Pelée plug was formed in-this way also, 7. e., that instead of
a solid mass of lava being pushed up bodily, as Heilprin believed, very
186 POPULAR SCIENCE MONTHLY
stiff lava, being forced from the vent after the last eruption, hardened
into a high mound. In the case of Pelée the shape of the mound was
modified by a splitting off of the lava along vertical planes, which pro-
duced the unique “ spike” of that volcano.
Age.—A comparison of this voleano with others in Mexico has led
Ordonez to state that it probably made its appearance during Phocene
ee
times.
CinDER CONES OF VALLE DE SANTIAGO
Cinder cones a few hundred feet in height are common objects in
the central voleanic plateau of Mexico. Many of these may be seen in
the basin in which the City of Mexico is situated, where the lower flanks
of the higher voleanoes meet the plain. Near Toluca excellent examples
occur. Because of the smallness of these cones as compared with the
volcanoes near whose base they rise they are likely to be overlooked on
Fic. 9. CRATER LAKE AND CINDER CONE, VALLE DE SANTIAGO, MEXICO.
account of the overshadowing effect of the former. This is not true of
the group of cinder cones, situated near the city Valle de Santiago,
which are scattered about the valley some distance from the higher
volcanoes, and which are, consequently, very conspicuous, their sym-
metrical truncated cones being the most marked features of the land-
Ss ape.
This group of eleven craters occupies an area roughly circular in
outline, one diameter of which is about six miles. Because of the
fact that the valley of Santiago is a dry plain, the presence of lakes
of pure water in four of the craters is unexpected. The clear blue
SOME LITTLE KNOWN MEXICAN VOLCANOES 187
water of the lakes with their settings of green cultivated fields which
cover the inner slopes of the craters are most beautiful objects.
The existence of these lakes is due to the fact that their bottoms are
below the levels of underground water. All these crater lakes are at
practically the same level, a condition which is due to the fact that the
voleanic material in which they rest and of which the plain is com-
posed is extremely porous, which permits the free circulation of the
water. The craters of the majority of the cones were partially filled
with lava which poured out quietly after the explosions which formed
them had ceased. In some cases they were filled until their bottoms
were above the level of underground water and are consequently dry;
in others there was either no subsequent outpouring of lava or the
quantity was very limited, in which case the cavity remained below the
level of underground water and a lake resulted. The diameter of the
craters vary in size from that of Solis (1,500 feet)—which was appar-
ently produced by the sinking of the crust—to the largest, which is
more than a mile in diameter. The craters are not all perfect ; some are
entire, while others are broken by one or two subsequent craters of
explosion. In one of these breeched craters three small cones rise from
the bottom, the material of which is apparently being used in the city
for constructional purposes.
The plain upon which the craters rest is underlaid by one or more
strata of basaltic lava which evidently flowed from the neighboring
mountains and which may be seen near the water level of the lakes and
in rayines which have been deeply cut by streams. Since neither this
stratum nor the strata of basaltic lava are disturbed by being domed up
or bent to any extent, it seems safe to conclude that the explosions
forming the craters must have been near the surface and very local,
otherwise the strata overlying the plain at that place would have been
more or less bent.
The cones are made up in some cases of voleanic ash of various
degrees of fineness, in others of volcanic breccia. The slopes are those
which are normally made by such materials.
Because of the fact that craters of explosion in other parts of
Mexico—Puebla, Mexico City, here in Valle de Santiago, and else-
where in the republic—arise from a plain or a more or less enclosed
basin which is full of water at a comparatively shallow depth, Ordonez
suggests that superficial water may have had a share in the production
of the explosions.
Such are a few of the points of interest on the volcanic plateau
of Mexico, a region which, interesting because of its scenery and
climate, fascinating because of its romantic history, is to the geologist
a volume which when studied will explain many points that are now
a matter of speculation.
188 POPULAR
THE PROGRESS OF
DOES THE SPEED OF LIGHT IN
SPACE DEPEND UPON ITS
WAVE-LENGTH?
WHEN a beam of light comes through
a prism of glass or a raindrop it is
dispersed into a band of vivid colors,
each denoting a particular wave-length. |
Though all these wave-lengths travel |
together in the air they part company |
in the glass or the water because there |
they no longer possess the same speed.
The long waves, which produce the sen-
sation of red, travel faster than the}
short, or violet waves.
Whether all wave-lengths really do
travel with the same speed in air has
not always been a matter of a single
opinion. Lorenz and Ketteler both
have found that the index of refraction
for air differs by some seven parts in a
million according to which end of the |
spectrum is employed.. This means a
proportionate difference in the speed of |
light in air for the long and for the
short waves. More than a quarter of |
a century ago Young and Forbes, using
Fizeaw’s method, seemed to find that
the speed of the blue waves in air was
1.8 per cent. greater than that of the
red ones. This result was threshed
over by Lord Rayleigh, who pointed out
serious objections to accepting their
results. When
mining the speed of light, he paid espe-
cial attention to this question. When
white light and red light were com-
pared not the slightest trace of differ- |
ence in their speeds could be detected. |
We may, therefore, rest assured that |
all waves of the visible spectrum travel
Michelson was deter- |
with practically the same speed in air.
Now
cially in that vast vacuum, interstellar
how is it in a vacuum, espe-
space? If we begin by limiting our
observations to our own solar system,
‘ then
SCIENCE MONTHLY
SCIENCE
it has been noticed that when one of its
satellites goes behind Jupiter its color
is just the same as when it emerges.
Suppose that Young and Forbes were
right and that the blue rays do travel
faster than the red rays. Then when
the satellite is behind the planet so that
it can send no more light to the earth,
the train of waves which it emitted
before its eclipse, still pursues its jour-
ney toward us. If the blue waves out-
run the red waves, it will be the latter
which give us our last glimpse of the
satellite. At disappearance it should
appear red. Similarly upon
emergence the blue should be the first
waves to reach the eye, but no such
difference of color upon eclipse and
emergence is seen. Hence we may con-
elude that all waves of the visible spec-
trum travel in space with the same
speed. It is, however, well to bear in
mind that the universe is larger than
the solar system and that the visible
spectrum by no means includes all
known radiation.
In 1859 Uriah A. Borden deposited
with the Franklin Institute of Phila-
delphia one thousand dollars to be
awarded as a premium to “any resi-
dent of North America who shall de-
termine by experiment whether all rays
of light, and other physical rays, are
or are not transmitted with the same
velocity.” This problem was restated
the thus:
“Whether or not all rays in the spec-
trum known at the time the offer was
made, namely, March 23, 1859, and
by board of managers
comprised between the lowest frequency
known thermal rays in the infra-red,
and the highest frequency known rays
in the ultra-violet . . . travel through
free space with the same velocity.”
Dr. Paul R. Heyl, of the Central
THE PROGRESS OF SCIENCE
189
High School of Philadelphia, has solved | image. A comparison of the two cycles
one part of this problem. He has
shown that the ultra-violet waves and
the waves of the visible spectrum travel
with the same velocity. For this the
Franklin Institute has awarded to him
one thousand dollars of the accumu-
lated fund. There has been no lack of
applications for the premium, but no
portion of it has ever before been
awarded. The investigating committee, |
consisting of Mr. Hugo Bilgram, me-
chanical engineer; Professor A. W.
Goodspeed, of the University of Penn-
sylvania, and Dr. G. F. Stradling, of
the Northeast Manual Training High
School of Philadelphia, were unanimous
in their favorable opinion.
The star Algol, or 8 Persei, is a spec-
troscopie binary, that is, a study of its
light shows that part of the time the
star is approaching the earth and part
of the time receding from it. More-
over, every 69 hours it grows less
bright, only to regain its rank as a star
of the second magnitude after the lapse
of about 7 hours. The simplest ex-
planation of these erratic performances
is that there are two bodies, one lumin-
ous, the other opaque, revolving around
The dim-
ming of brightness occurs when the
their common center of mass.
opaque body gets between the earth and
the luminous body. Their diameters,
orbital velocities and masses have been
calculated and also the distance their
centers are apart.
The remoteness of Algol—it takes
light 30 years to come thence to the
earth—as well as its change of bright-
ness caused it to be selected by Dr.
Hey! for his investigation.
method was this.
of the change of brightness of the star
by photographing it at intervals in
ultra-violet light produced by a trans-
parent diffraction grating. The varia-
tion as judged by the eye was already
known. If the ultra-violet waves travel
faster than those belonging to the vis-
ible spectrum there would be a shifting
of the time of least brightness of the
In brief his |
He obtained records |
of change however shows that there
can not be a greater difference between
the speed of the ultra-violet light and
that of the visible spectrum of more
than one part in 250,000.
There seems to have been no previous
determination of the speed of ultra-
violet waves in a vacuum. Dr. Heyl’s
result, in substance that the two kinds
of waves do not differ in speed by more
_than 1 km. per second, is of high value.
To be sure it has been assumed for a
long time that no such difference exist-
ed, but an experimental proof is a very
different thing from mere extrapolation.
The work was conducted with the
8-inch equatorial of the Central High
School and extended over a period of
two years. The times when the varia-
tion of Algol occurred at a suitable
time of day and under appropriate
conditions of the sky were rare.
As yet there seems to be no experi-
mental demonstration that the infra-
red rays and those of the visible spec-
trum travel in space with the same
speed. As far back as 1842 Wrede be-
lieved he had shown that the two speeds
were different, but his work was subject
The method of Dr. Heyl does
not lend itself to the settlement of this
second part of the problem, since the
infra-red rays have little effect upon a
photographic plate.
to error.
Let us hope that
some physicist may devise an appro-
priate method and thus remove this gap
in our knowledge of the velocity of
radiation—incidentally
obtaining an-
other portion of the Boyden premium.
THE DUKE OF ARGYLE
THE autobiography and memoirs of
the late Duke of Argyle, edited by his
wife, have lately been published in two
large volumes. Perhaps most men of
science, on being asked offhand for an
estimate of the duke, would reply that
he dilettante, with
more enthusiasm than knowledge. In a
was an amiable
way, this is correct enough; but given
ROR LAT
190
SCIENCE MONTHLY
Yeorge Douglas, Ox L uke of. lrgy ll me RG
ISOS
qualification, it does him a
He
his life, an earnest, sincere and indus-
without
great injustice. was, throughout
trious man, much interested in the ad-
vancement of his fellows and the eculti-
vation of his own mind.
an enormous estate, and taking a most
prominent part in the politics of his
time, he bore on his shoulders as great
a burden as a man might care to lift,
without taking time and energy for sci-
entific work. It is impossible to say
what he might have done, had he de-
voted himself mainly to some single
branch of science or literature, but one
may readily believe that it would in no
Inheriting
wise have equalled his actual achieve-
He
was not a genius, in the ordinary ac-
ment as a versatile man of affairs.
ceptation of the term; but he was one
of those thoroughly useful citizens who
serve to hold together the diverse ele-
ments of human society. In this sense,
he was a duke in fact as well as in
name, and an aristocracy so typified is
not without a certain justification even
from our democratic point of view.
Many naturalists are familiar—and
some no less tired than familiar—with
the
semi-metaphysical questions relating to
duke’s controversial writings on
evolution. Fewer, we imagine, know
THE PROGRESS
how enthusiastically he watched the
birds and other living things on his
estate, and how graphically and accu-
rately he could describe them. The
following, taken from a letter to Lord
Litford, should endear him to every
ornithologist: ‘“‘Anent the dipper, I
need not say how I agree with you in
loving them. I have three salmon
streams in my estates which they
haunt. I never allow one to be shot.
We have many pairs, but they never
AS
propensities, I have had ocular demon-
seem to increase much. to their
stration that they eat fish, and that
greedily. Twice I have seen a dipper
with a fish in his bill—one was a trout
or salmon fry, the other was a small
flounder. This was in the seaport of
The
flounder was, of course, a small one,
the river Aray below my house.
but it was as broad as the white waist-
coat of its devourer. I had a good
glass, and saw the dipper emerge with
the little flounder in his bill. He then
took it to a large boulder stone near the
bank, and began beating it to death
against the stone. Twice it slipped off
into the stream, and each time it was
firmly pursued and brought back to the
block!
seem to have a way of doubling and
All aquatic piscivorous birds
folding up the flat fishes they catch so |
as to get them down, but I did not see
the feat performed in the present case.”
The following good story is told in
another part of the same letter: “I
bought two ‘civette’ (small owls) in
Rome, and took them in a cage with
me home. We travelled with Gladstone.
He was immensely captivated by the
brilliant yellow eyes of the birds.
fastened them Gladstone’s brown
eyes with a fixed stare, and he took it
into his head to try if he could stare
them out of countenance.
on
He continued
to joke all the way from Rome to near
Perugia, and at last the owls gave it
up and looked away. He seemed as |
delighted as if he had won a great
Parliamentary triumph.” This is dated
1896. His first letter on birds, so far
They
OF SCIENCE 191
as the biography shows, was written in
1837—and the interest did not flag in
the long interval.
SCIENTIFIC ITEMS
WE record with regret the deaths of
Professor Alfred Newton, F.R.S., who
held the chair of zoology and compara-
tive anatomy at Cambridge; of Dr.
Edward John Routh, F.R.S., the mathe-
matician, of the University of Cam-
bridge; of Dr. Maxwell Tylden Masters,
|
_F.R.S., the English botanist and horti-
of Dr. Alexander Stewart
Herschel, F.R.S., honorary professor of
eulturist ;
physics at the Durham College of Sci-
ence; of Sir Dietrich Brandis, F.R.S.,
of the of
India; of Professor Kuno Fischer, pro-
fessor of philosophy at Heidelberg;
Henry G. Hanks, at one time state
inspector general forests
of
geologist of California, and of Mrs.
Elizabeth Cabot Cary Agassiz, who in
1850 married Louis Agassiz, with whose
work she was intimately associated, and
whose life she wrote.
Tue council of the British Associa-
tion for the Advancement of Science
has nominated Mr. Francis Darwin,
F.R.S., foreign secretary to the Royal
Society, author of important papers on
physiological botany and of the * Life
and Letters of Charles Darwin,’ to be
president of the meeting next year,
when, for the fourth time, the associa-
tion will in Dublin.—M.
Lapparent, professor of mineralogy and
assemble de
geology at Paris, has been elected per-
manent secretary of the Paris Academy
in to the late
M. Berthelot—On the occasion of the
of Sciences succession
celebration of the bicentenary of the
birth the
medal of the Royal Swedish Academy
of Linneus, Linnean gold
was awarded to Sir Joseph Hooker.—
A portrait of President Eliot by Mr.
John P. Sargent has been unveiled in
the Harvard Union.
Dr. E. H. SELLARDS, for three years
geologist and zoologist to the Florida
University, has been appointed state
geologist of Florida by Governor Brow-
192 POPULAR
ard.—Dr. E, A. Ruddiman, professor |
of materia medica and pharmacy at.
Vanderbilt University, Nashville, has_
been appointed chief food ana drug in- |
spector of the Department of Agricul-
ture.—Dr. Frederick L. Dunlap, in-
structor in the University of Michigan,
has been appointed associate chemist
in the Bureau of Chemistry, and will
be a member of the board of food and |
drug inspection.
AN Italian Association for the Ad-
vancement of Science, proposed at
Milan last year, has now taken form.
The first meeting will be held at Parma
in September next, when it is hoped
SCIENCE
MONTHLY
that the sister associations of Europe
and America will send delegates.
Mrs. RUSSELL SacE has given the
sum of $300,000 to found what will be
known as the Russell Sage Institute of
Pathology as an adjunct to the City
Hospital on Blackwell’s Island.—Dr.
Lawrence F. Flick, director of the
Phipps Institute, Philadelphia, and
chairman of the committee on the In-
_ternational Congress of Tuberculosis,
which is to be held in Washington in
the fall of 1908, announces that he has
received $35,000 in subscriptions to a
fund of $100,000 which he is raising
to meet the necessary expenses.
ip os 3)
Pe EwreAR 8 CRWNe
MEO NE Aa
SEPTEMBER, 1907
THE PROBLEM OF AGE, GROWTH AND DEATH
By CHARLES SEDGWICK MINOT, LL.D., D.Sc.
JAMES STILLMAN PROFESSOR OF COMPARATIVE ANATOMY IN THE
HARVARD MEDICAL SCHOOL
Ill. THe Rate or GrowTH
Ladies and Gentlemen: In the first of the lectures, I described those
grosser characteristics of old age, which we ourselves can readily dis-
tinguish, or which an anatomical study of the body reveals to us. In
the second lecture I spoke of the microscopic alterations which occur
in the body as it changes from youth to old age. But besides the
changes, which we have already reviewed, there are those others, very
conspicuous and somewhat known to us all, which we gather together
under the comprehensive term of growth. It is growth which I shall
ask you to study with me this evening, and I shall hope, by the aid
of our study, to reinforce in your minds the conclusion which I have
already indicated, that the early period of life is a period of rapid
decline, and that the late period of life is one of slow decline.
In order to study growth accurately, it is desirable, of course, to
measure it, but since we are concerned with the general problem of
growth, we wish no partial measure, such as that of the height alone
would be. And indeed, if we take any such partial measure, how
could we compare different forms with one another? The height of a
horse is not comparable to that of a man; the height of a caterpillar
is not comparable to that of any vertebrate. Naturally, therefore, we
take to measuring the weight, which represents the total mass of the
living body, and enables us at least with some degree of accuracy to
compare animals of different sorts with one another. Now in studying
this question of the increase of weight in animals, as their age in-
creases, it is obviously desirable to eliminate from our experiments all
disturbing factors which might affect the rate of growth or cause it
to assume irregularities which are not inherent either in the organiza-
VOL. LXXxI.—13.
194 POPULAR SCIENCE MONTHLY
tion of the animal or in the changes age produces. The animals which
belong to the vertebrate sub-kingdom, of which we ourselves are mem-
bers, can be grouped in two large divisions according to the natural
temperature of their bodies. The lower vertebrates, the fishes, frogs
and their kin, are animals’ which depend for their body temperature
more or less on the medium in which they live. The other division
of vertebrate animals, which includes all the higher forms, are so
organized that they have within certain limits the power of regulating
their own body temperature. Now it is easily to be observed—and
any one who has made observations upon the growth of animals can
confirm this—that animals otherwise alike will grow at different speeds
at different temperatures.
There are animals, like the
frogs and _ salamanders,
which will live at a very
considerable range of tem-
perature and thrive, ap-
parently. No ultimate in-
jury is done to them by a
change of their bodily tem-
perature. Here we have a
picture of four young tad-
poles, all of which are ex-
actly three days old. The
first of these has been kept
at a temperature not much
above freezing. The fourth,
at a temperature of about
24 degrees centigrade; the
other two at temperatures
Fic. 19. Four TADPOLES OF THE EUROPEAN FROG
Rana fusca. After Oskar Hertwig. The four animals between. They are all de-
are all of the same age (three days) and raised fromthe gcendants from the same
same batch of eggs, but have been kept at different tem-
ie batch of frogs’ eggs, and
D fe
peratures.
A at 11.5° Centigrade, B at 15.0° Centigrade. you can see readily that
C ** 20.0° : D ‘* 24.0° : :
the first one is_ still
essentially nothing but an egg. The second one, which has had a
little higher temperature, already shows some traces of organization,
and those familiar with the development of these animals can see in
the markings upon the surface the first indications of the differentia-
tion of the nervous system. ‘The third has been kept at a considerably
warmer temperature, and is now obviously a young tadpole; here are
the eyes, the rudimentary gills, the tail, ete. While the fourth tadpole,
which was maintained at the best temperature for the growth of
these animals, has advanced enormously in its development. Obviously,
should we make experiments upon animals of this class it would be
AGE, GROWTH AND DEATH 195
necessary to keep them at a uniform temperature, if we wished to
study their rate of development, and that is, for very practical reasons,
extremely difficult and unsatisfactory. Far better it has seemed for
our study of growth to turn to those animals which regulate their own
temperature. This, accordingly, I have done, and the animal chosen
for these studies was the guinea-pig, a creature which offers for such
investigations certain definite advantages. It is easily kept; it is apt
to remain, with proper care, in good health. Its food is obtainable at
ee as ey (Ss es OS
=f Setar
a
fia ea
inn
(ScumESMeEp coe
ee re 0
pees ee ee ol i ales
JS eee eee ee
Bam cere aisle
ee er
a a ca
iderT PT
COP VU ee ey Key algae fea
Fic. 20. CURVES SHOWING THE GROWTH OF BosTON SCHOOL CHILDREN IN HEIGHT
AND WEIGHT. After H. P. Bowditch.
- all seasons of the year, in great abundance, and at small expense. . The
animals themselves being of moderate size do not, of course, require
such extraordinary amounts of food as the large animals, should we
experiment with them. Accordingly with guinea-pigs I began making,
years ago, a long series of records, taking from day to day, later from
week to week, and then, as the animals grew older, month by month,
the weight of recorded individuals. There was thus obtained a body
of statistics which rendered it possible to form some idea of the rapidity
of growth of this species of mammal.
Now in regard to the rapidity of growth, it is necessary that we
form clearer notions than perhaps you started out with when you came
into the hall this evening. I will ask for the next of our pictures
on the screen, where we shall see illustrated to us older methods of
196 POPULAR SCIENCE MONTHLY
recording the progressive growth of animals. This is a chart taken
from the records of my friend, Dr. Henry P. Bowditch, showing the
growth of school children in Boston. Here we have, in the lower part
of the figure, the two curves of growth in weight. The upper curve
is the weight of boys. We can follow it back through the succession
of years down to the age of five and one half years, when the records
begin. The child weighs, as you see, a little over forty pounds at that
time. When the boy reaches the age of eighteen and one half years, he
approaches the adult size, and weighs well over 130 pounds. Here then
we see growth represented to us in the old way, the progressive in-
crease of the animal as it goes along through the succession of years.
Now this is a way which records the actual facts satisfactorily. It
shows the progressive changes of weight as they really occur; but it
does not give us a correct impression of the rate of growth. Concern-
ing the rate of growth, some more definite notion must be established in
our minds before we can be said to have an adequate conception of
the meaning of that term. It is from the study of the statistics of
the guinea-pigs, and of other animals, which I have since had an
opportunity of experimenting with, that we get indeed a clearer insight
as to what the rate of growth really is and really means.
I should lke to pause a moment to say that when I first published
a paper upon the subject of growth, it, fortunately for me, interested
the late Dr. Benjamin Gould. The experiments which I had made and
recorded in that first publication came to a sudden end, owing to a
disaster for which I myself was personally not responsible, by which
practically my entire stock of animals was suddenly destroyed. Dr.
Gould, after consulting with me, proposed that I should have further
aid from the National Academy of Sciences, and through his inter-
vention I obtained a grant from the Bache fund of the academy. That
liberal grant enabled me to continue these researches, and this is the
first comprehensive presentation of my results which I have attempted.
In this and the subsequent lectures, I hope that enough of what is new
in scientific conclusions may appear to make those to whose generosity
I am indebted feel that it has been worthily applied. I can not let
such an occasion as this pass by without expressing publicly my
gratitude to Dr. Gould for his encouragement and support at a time
when I most keenly appreciated it.
If animals grow, that which grows is of course the actual substance
of the animal. Now we might say that given so much substance there
should be equal speed of growth, and we should expect, possibly, to
find that the speed would be more or less constant. I can perhaps
illustrate my meaning more clearly, and briefly render it distinct in
your minds, by saying that if the rate of growth, as I conceive it, should
remain constant, it would take an animal at every age just the same
length of time to add ten per cent. to its weight; it would not be a
AGH, GROWTH AND DEATH 197
question whether a baby grew an ounce in a certain length of time,
and a boy a pound in the same time, for the pound might not be
the same percentage of advance to the boy that the ounce would be to
the baby. In reality with an advance of an ounce the baby might be
growing faster than the older boy with the addition of the pound.
In the next slide which we are to have thrown upon the screen
we have my method of measuring rate of growth illustrated graphically.
There is here a curve which represents the rate of growth of
male guinea-pigs. The figures at the bottom indicate the age of the
animals in days. When guinea-pigs are born, they are very far ad-
vanced in development, and the act of birth seems to be a physiological
-
ao
0
258i M 23 29 3538 45 60 75 $0 105 120 135 150 165 180 195 210daye 241
Fic. 21. CURVE SHOWING THE DAILY PERCENTAGE INCREMENTS IN WEIGHT OF
MALE GUINEA PIGs.
shock from which the organism suffers, and there is a lessening of the
power of growth immediately after birth. But in two or three days
the young are fully recovered, and after that restoration they can add
over five per cent. to their weight in a single day. But by the time
they are 17 days old, as represented by this line, they can add
only four per cent., and by the time they are 24 days old, less than
two per cent.; at 45 barely over one per cent.; at 70 still over one
per cent.; at 90 less; at 160 less; and towards the end the curve con-
tinues dropping off, coming gradually nearer and nearer to zero, to
which it closely approximates at the age of 240 days. In about a year,
the guinea-pig attains nearly its full size. You notice that this curve
is somewhat irregular. Such is very apt to be the result from statistics
when the number of observations is not very large. It means simply
that there was not a sufficiently large number of animals measured to
give an absolutely even and regular set of averages. But the general
course of the curve is very instructive. In the earlier condition of the
young guinea-pig there is a rapid decline; in the later, a slow decline.
198 POPULAR SCIENCE MONTHLY
The change from rapid to slow decline is not sudden, but gradual, as
you see by the general character of this curve.
In the next slide we can see immediately that what I have asserted
as true of the male is equally true of the female, although the values
Ao
SS SS]
—— Say
Se a es
SSS See ea
Ses SS ae
Se a
ESS Sa
lA
X=
hn
A i em
Sell i7 23 29 35 165 180 195 2i0daya Pry
Fic. 22, CURVE SHOWING THE DAILY PERCENTAGE INCREMENTS IN WEIGHT OF
FEMALE GUINEA-PIGS.
which we have differ slightly in the two sexes, and there are accidental
but not significant variations in this curve as in the first. Here also
we observe at once an early period of rapid decline in which the rate
of growth is going down and down—a period of slight decline in which,
to be sure, it is going down still, but with diminished rapidity.
There is another method by which we can represent this change
Perncod 3 4+ 5 6 7 8 9 10 Il 12 13 14 15 16 I7 18 19 20 21 22 23 2425
Fig. 23. CURVE SHOWING THE LENGTH OF TIME REQUIRED TO MAKE EACH SUCCESSIVE
INCKEASE OF 10 PER CENT. IN WEIGHT BY MALE GUINEA-PIGS.,
AGE, GROWTH AND DEATH 199
in the rate of growth which will perhaps help to illustrate it; and in
the next of our pictures we see this other form of representation before
us. This vertical line represents the length of time which it takes a
young male guinea-pig to add ten per cent. to its weight the first time.
Here the third time—the fourth—the fifth—and you see as it 1s grow-
ing older and older it takes the animal longer and longer to add ten
per cent. to its weight. Finally we get to the nineteenth addition, and
we see that the period is very long indeed. How long that period is
we can judge by the figures here upon the left, which ate the
length of the days. From the base line to this one marked “ten” is a
period of ten days, and you see from the time the guinea- pig has added
to its weight ten per cent. for the nineteenth time it does it so slowly
that it requires ten days and more; for the twenty-first time, nearly
twenty; for the twenty-second time, nearly forty. Here where the
number of observations becomes small, the curve grows very irregular.
Thus we demonstrate that as the animal grows older it takes longer
and longer to add ten per cent. to its weight. In the other sex, as the
next slide shows, the same phenomena can be clearly demonstrated ;
here are the periods as before, lengthening out, as you see, at first;
then becoming very long indeed. In the following slide I have another
|
Se
ot ee
a
we
a Se
heer TTT
Jett 3 45678 9 10 I 12 13 14 15 16 17 18 19 20 21 22 23 24 25
70
60
50
30
20
Fic. 24. CURVE SHOWING THE LENGTH OF TIME REQUIRED TO MAKE EacH SUCCESSIVE
= INCREASE OF 10 PER CENT. IN WEIGHT BY FEMALE GUINEA-PIGS.
200 POPULAR SCIENCE MONTHLY
form of representation of this same phenomenon as it occurs in the
human subject. Here is a diagram of growth, which represents, as
accurately as I could determine it, the curve complete for man from
the date of birth up to the age of forty years. It has been calculated
by a simple mathematical process where these ten-per-cent. increments
fall, and from each point in this curve where there has been such an
increment, a vertical line has been drawn, as you see here. These lines
are very close together at the start. One ten per cent. after another
follows in a short interval of time, but gradually the time, as indicated
by the space between two of these vertical lines, increases, and when the
individual is three years old, you can see there has been a very great
qin
7
Fic. 25. CURVE SHOWING THE GROWTH OF MAN FROM BIRTH TO MATURITY, With vertical
lines added to mark the duration of the periods, for each 10 per cent. addition to the weight.
lengthening out of the period which is necessary for it to add ten per
cent. to its weight. Then it comes at the age of twelve to a period of
slightly more rapid growth, a fluctuation which is characteristic of
man, but does not appear in the majority of animals. After that
comes very rapidly the enormous lengthening of the period; and I have
not added the last ten per cent. because the curve here at the top, you
see, is not very regular, and it could not be calculated with certainty.
Our diagram is merely another form of graphic representation of the
fact that the older we are the longer it takes us to grow a definite
proportional amount.
The next slide carries us into another part of our study, away from
the mammals which we have thus far considered, into the class of
birds. The growth of chickens is represented here. Now a chicken is
born in a less matured state than a guinea-pig, and has a good deal
AGH, GROWTH AND DEATH 201 |
ee ee
at
(| Percertiage Sncvements Oech, Males
LL
HN
wIM
i HAVEN
dT —
6376 13 Ho i 6 7 90 106 \sidayd 342
Fic. 26. CURVE SHOWING THE DAILY PERCENTAGE INCREMENTS IN WEIGHT
BY MALE CHICKENS.
higher efficiency of growth at first. In a chicken, as in a guinea-pig,
birth is a disturbing factor, and growth immediately after the hatching
of the chicken is a little impeded, but the chick quickly recovers and,
as we see, the first time when the rate can be distinctly measured we get
a nine-per-cent. addition to the weight in a single day. In a chicken
as in the guinea-pig, the rate gradually diminishes. The change from
the rapid decline at first to the later slower decline is more gradual; the
curve is more distinctly marked in the chicken as a round curve. There
is not in the bird so marked a separation of the preliminary rapid de-
cline and the later slower decline as we find in the guinea-pig. The
curve again is very irregular because I had only a very limited number
of observations upon the weight of chicks. The other sex, as the next
slide will show, presents similar phenomena, though the female chickens
do not grow quite as fast as their brothers. Here we notice an increase
Pence phage Incuwments Cluck Semales
0326 131822203330 46 56 66 7° 90 106 130 97 days 342
Fic. 27. CURVE SHOWING THE DAILY PERCENTAGE INCREMENTS IN WEIGHT
BY FEMALE CHICKENS.
202 POPULAR SCIENCE MONTHLY
of almost, but not quite nine per cent., rapidly falling down so that
after the chick is two months old it never adds as much as three per
cent. to its weight. It loses in the first two months from a capacity to
add nine per cent., down to a capacity of adding less than three. It
loses in two months two thirds of its total power of growth, for from
nine to zero is divisible into two parts, of which the first, from nine
down to three, would be two thirds, and the second, from three to zero,
would be one third. Here then we learn that two thirds of the decline
which occurs in the life of a chick takes place in two months, and for the
rest of the life of the bird there is a decline of one third. That, you
must acknowledge, is an extraordinary and most impressive difference.
If it be true that the more rapid growth depends upon the youth of the
individual,—its small distance in time from its procreation, then we
may perhaps, by turning to other animals which are born in a more
immature state, get some further insight into these changes; and that
I have attempted to do by my observations upon the development of
rabbits. Rabbits, as you know, are born in an exceedingly immature
state. They are blind, they are naked, they are almost incapable of
definite movements, quite incapable of locomotion, and are hardly more
than little imperfect creatures lying in the nest and dependent utterly
upon the care of the mother, quite unable to do anything for them-
selves except take the milk which is their nourishment. They are in-
deed animals born in a much less advanced stage than are the guinea-
pigs. Upon the screen we see this interesting result demonstrated to
us, that a male rabbit, the fourth day after its birth, is able to add over
seventeen per cent. to its weight in one day. From that the curve
drops down, as you see, with amazing rapidity, so that here at an age
of twenty-three days the rabbit is no longer able to add nearly eighteen
per cent. daily, but only a little over six. At the end of two months
from its birth, the growth power of the rabbit has dropped to less than
two per cent., and at two months and a half it has dropped to one. The
drop in two and a half months has been from nearly eighteen per cent.
down to one per cent., and the rest of the loss of one per cent. is
extended over the remaining growing period of the rabbit. Could we
have a more definite and certain demonstration of the fact that the
decline is most rapid in the young, most slow in the old? It is not
in this case any more than in the others the one sex that demonstrates
this fact, for in the female we find exactly the same phenomena, as the
next slide will show. The irregularities are not significant. The
strange dip at thirty-eight days, for instance, corresponds to an illness
of some of the rabbits which were measured, but they rapidly recovered
from it and grew up to be fine, nice rabbits. If instead of measuring
half a dozen rabbits, we had measured two hundred or five hundred,
these irregularities would certainly have disappeared. The females in
the case of the rabbits, as in the case of the guinea-pigs, are not able
AGH, GROWTH AND DEATH 203
03 8 131823283338 = 55 72 «106 180days ag
Fic. 28. CURVE SHOWING THE DAILY PERCENTAGE INCREMENTS IN WEIGHT
BY MALE RABBITS.
to grow quite so fast at first. We see here sixteen instead of over seven-
teen per cent. as the initial value, but the general character of the drop
is the same, enormously rapid at first and very slow afterwards. All
of our cases, then, show the same fundamental phenomena appearing
with different values.
Now in regard to man, we do not possess any such adequate series
of statistics of growth as is desirable. We have many records of the
weight of babies, by which I mean children from the date of birth up
to one year of age. We have also very numerous records of school
children, which will extend perhaps from five and one half up to say
seventeen, eighteen or even nineteen years. There are records of boys
204 POPULAR SCIENCE MONTHLY
1g 4
17
16
15
e | Peccentage Ircnuments Pablbty
itl Females
13
=
a
\
03 8 1318232833V 55 80 106 180 darya 27
38 F
oO
Fic. 29. CURVE SHOWING THE DAILY PERCENTAGE INCREMENTS IN WEIGHT
BY FEMALE RABBITS.
at universities, and a still more limited number of weighings of girls
at colleges. But all these statistics piled together do not give us one
comprehensive set of data including all ages. This is very much to be
regretted, and it would be an important addition to our scientific knowl-
edge could statistics of the growth of man be gathered with due precau-
tions. It would fill one of the gaps in our knowledge which is lament-
able. We have, however, some rough, imperfect data which for our
present purposes it seems to me are adequate, and the results of the
study of these will be shown by the next series of pictures.
But let us pause for a moment to consider this singular table. It
shows in this column the number of days which it takes for each species
AGH, GROWTH AND DEATH 205
TABLE!
100 Parts Mother’s Milk Contain
Days Needed to
Species Double Weight ee oe ae ; Phosphoric
o ACl
Man 180 1.6 0.2 0.0328 0.0473
Horse 60 2.0 0.4 0.124 0.131
Cow 47 3.5 0.7 0.160 0.197
Goat 19 4.3 0.8 0.210 0.322
Sheep 10 6.5 0.9 0.272 0.412
Cat $ 7.0 1.0 — —_
Dog 8 1633 123 0.453 0.493
Rabbit ii 10 4 2.4 0.8914 0.9967
of animal indicated at the left to double its weight after birth. A
man requires 180 days to double his weight; a horse, 60; a cow, 47;
a goat, 19; a pig, 18; a sheep, 10; a cat, 914; a dog, 8; a rabbit, 6 (or
possibly 7 days). Now here are analyses of the milk. The main
point of interest is to be found in the figures in this column, which
represent the amount of albuminoid, or proteid material contained in
the milk. You will observe that for man the proportion is lowest, 1.6
per hundred parts; the horse has a little more—2; cattle—3.5;
and so the values run. In other words, it is obvious that the less the
proteid in the milk, the longer does the species require to double its
weight. This looks at first sight as if there were a relation between
the composition of the milk and the period of growth of the animal;
but you know very well that if you take the milk of a cow, which is
very much richer in proteid material, and feed it to a baby, a human
baby, that baby does not grow at the same rate as the young cow, but
grows at the human rate. It is obvious, therefore, that it is somewhat
more complicated than a mere question of food supply. We have in
fact one of the beautiful illustrations of the teleological mechanism of
the body. These various species have their characteristic rates of growth,
and by an exquisite adaptation, the composition of the mother’s milk
has become such that it supplies the young of the species each with the
proper quantum of proteid material which is needed for the rate of
growth that the young offspring is capable of. It is a beautiful adjust-
ment, but there is not a causal relation between proteid matter and this
rate of growth. It is an example of correlation, not of causation.
We pass now to the next of our slides, which carries us over into
the study of our own species. It is not possible at the present time to
represent in any form of curve which I have seen the daily percentages
of increment for man covering the whole period of growth. In order
to get the results together, I have confined myself here to the repre-
sentation of the yearly percentages. Now from the age of zero to the
age of one year, you see according to this table a child is able to in-
crease its weight 200 per cent. But from the beginning of the first to
1 After Abderhalden, Zeitschrift fiir Physiologische Chemie, Band XXVL.,
p- 497.
206 POPULAR SCIENCE MONTHLY
EARS ld?) Soa IS eT ee Ge ION 2 1S) IS) IS) 1G 17% ibe ISON ely terres cAwes
Fie. 30.
=
YEARS | 2 3.4 8) 6 °7 08.09) iO tis 12 43 14 15° 16" We ts eoecieee mes ok
Fig. 31.
AGH, GROWTH AND DEATH 207
the end of the second year, only 20 per cent., and thereafter it fluctuates
in the neighborhood of 10 per cent. a year until the age of 13. At 14
or 15 there is a fluctuation, an increase, and then the decline goes on
again and slowly we see the growth power fading out. Authors are not
agreed as to the exact statistical value, and so I will ask to have thrown
upon the screen another curve, also representing the percentage increase
of boys, and based chiefly upon English tables. For these data I] am
indebted to my friend Professor Donaldson, of the Wistar Institute in
Philadelphia. He finds in these records an increment of a little more
than 200 in the first year, but the drop comes during the second year
and is startling in its enormous extent and is contrasted with the later
less decline. The phenomena may well arouse our attention and con-
vince us that we are approaching a most important scientific question,
the question of why the drop comes in this way. In the case of girls,
as the next of our slides will show, we can prove the same phenomena
with slightly different values. Girls, like the females of other species,
grow a little less forcibly, so to speak, than boys. They do not quite
200%
100%
|
}
YEARS t 525 Se 4 eo Ome ncee A NO. Ma AS 4: IS 16 17 IBIS) 20.2 2es ves
attain a 200 per cent. value for the first year, but they too drop in a
similar manner to the boys to about 30 per cent., and away down
towards 10 per cent. in the third year. Then comes the long slow
gradual decline up to the period of twenty-three. Professor Donaldson,
as our next slide will demonstrate to us, has prepared curves from the
English figures for girls also. They come up nearer to the 200 per
208 POPULAR SCIENCE MONTHLY
cent. than in Miihlmann’s table, but drop well below 30 per cent. in the
second year, and down to 20 per cent. in the fourth. Then occurs the
slight increase of growth in the period of twelve, thirteen, fourteen
years, and next the final stage of decline. In the four cases the
human rate curve is similar. The great fall takes place at the
beginning, the slow fall towards the end. Professor Thoma has
thought he could get somewhat more accurate results by putting boys
200%
100%, |
4. 536 §7 8 “9 “Olen Ne 13) 4s ie) Viz, aie) 19) cOu lb eemes
FIG. 33.
and girls together, and he has made a calculation, as shown now upon
the screen, of a curve in which the two sexes are combined. His figures
again differ somewhat from those we have considered, but you meet in
this curve also the same general phenomena. There is an enormous
percentage of growth during the first year; an enormous drop during
the second; then the slow decline; the moderate fluctuation upward;
and then the last slow disappearance of growth. In every instance,
therefore, we have an absolute demonstration, it seems to me, of the
strange phenomenon. Paradoxical it will sound, whenever it is first
stated to any one, that the period of youth is the period of most rapid
decline; that the period of old age is that in which decline is slowest.
We shall learn in the next lecture that this double phenomenon fur-
nishes us a clue to further investigations, and leads to certain new
inquiries, which enable us to gain some further insight into the essential
nature of the phenomena of age.
AGH, GROWTH AND DEATH 209
150%
100%
| a | | =
Hsitisee eetesoa er it Si is oe
2p se Ai SUG) eT) a6 dS
io ow Ze IS 4s IS eal6ieie SIR IS) 20 MVelieecen eae 245 wes
=
FIG. 34.
This completes the series of curves which I had prepared to present
to you to show the rate of growth in animals from their birth only, but
of course there has been also a growth of the animals which preceded
their birth, and that now must briefly be considered.
The mere inspection of developing embryos of known ages gives us
some idea of the rate of growth. With the aid of the lantern I will
ask you to look with me at some pictures of the developing chick and
developing rabbit. Let us begin with the chick.
* During the lectures a series of lantern slides were projected upon the
screen, made from photographs of mounted specimens of chicken embryos, which
showed very clearly the progress of development in the chick during the very
early stages. The first figure illustrated a chick of 18 hours’ incubation. The
embryo had been skimmed off from the surface of the egg, hardened, colored
artificially and mounted in the manner of the ordinary microscopical prepara-
tion in Canada balsam. At this age the naked eye can just distinguish a line,
which indicates the position of the axis of the embryo. The unaided eye can
recognize nothing more. In the second picture the head and neck of the embryo
were easily distinguishable, and a few of the earliest primitive segments. The
third slide showed a stage of a day and a half. The spinal cord and brain were
distinctly differentiated, and numerous so-called “ blood islands ” scattered about,
VOL. LXx1.—l4.
210 POPULAR SCIENCE MONTHLY
We have first an embryo of twenty hours of incubation; following
it one of one day. You can observe just a little line of structure indi-
cated and showing where the longitudinal axis is to be situated. By
the second day the chick has distinctly a head and a little heart, and
- those who are expert can differentiate with a microscope the axis of the
body, the beginning of the formation of the intestine and of the mus-
cles. At the end of the first day there was lttle more than a mere
gathering of cells, but during the twenty-four hours of the second day
the gathering has changed from a mere streak upon the surface of the
yolk to a well-formed individual, with recognizable parts and several
times the volume it had when one day old. The next figure illustrates
the alteration which occurs during, approximately, the third day. It
is obvious that the embryo has again made an enormous increase in
volume. The eye has developed, the heart has become large, the tail
is projecting, the dorsal curve of the future neck is distinguishable.
We pass next to the fourth day. Is it not a strange looking beast, with
its wing here and leg there, a little tail at this point; an enormous eye,
almost monstrous in proportion; and, finally, here a bit of the brain.
After five days we have a chick the brain of which is swelling, causing
the head to be of so queer a shape that, with the eye, which seems out
of all proportion to the rest of the body, it imparts an uncanny look
to the embryo. The wing is shaping itself somewhat, and the ends of
the leg, we can see, will, by expansion, form a foot. Finally, the chick
after seven and after eight days is figured. In the short interval of
only six days the chick grows from the size represented by Fig. 2 to
that shown in the last figure upon the plate. It is an enormous in-
crease. Suppose a chick after it was born were to grow at such a rate
as that! The eight-day embryo is thirty or forty times as big as it
was eight days before. It would seem marvelous to us if a chick
after it was hatched should become in eight days thirty times as large
and heavy as when it first came out from the egg. It is perhaps advis-
able to let you follow the growth of the chick a little farther, and
accordingly I present another picture which shows an embryo of
about ten days. The little marks upon the surface of these embryos
indicate the commencing formation of the feathers. A comparison of
the series of figures proves that the development is taking place with
marvelous speed. We need only to look at these stages, comparing them
with one another, to realize that the progress of the embryo in size and
development occurs with a rapidity which is never to be found in later
stages.
The history of embryonic rabbits declares with equal emphasis that
the earliest development is extremely rapid. I wish now to show you
The final slide of the series showed a chick of three and one half days. It has
not seemed necessary to reproduce these figures with the present text, as they
merely duplicate, on a larger scale and with more detail, the pictures which have
been included.
AGH, GROWTH AND DEATH 211
Fic. 35. TEN STAGES OF THE DEVELOPING CHICK, after Franz Keibel. All the figures are
magnified four diameters. In No.1 only the parts indicated in the vertical axis of the figure
correspond to embryonic structures proper.
No. 1. Incubated 20 hrs. No. 6. Incubated 3 days, 16 hrs.
No. 2. “ 24 hrs. No. 7. - 4days, 8 hrs,
No. 3. fs 2 days. No. 8. és 5days, 1 hr.
No. 4. fp 2 days, 19 hrs. No. 9. we 7 days, 4 hrs.
No. 5. as 2 days, 22 hrs. No. 10. Ny 8days, 1 hr.
a series of pictures to illustrate in the same manner the progressive
development of the rabbit. Numbers one to five of the figures upon
the screen represent what is known as the germinal area, in the center
212 POPULAR SCIENCE MONTHLY
of which the actual embryo is gradually formed. In No. 1 merely the
axis is indicated, in front of and alongside of which the parts of the
embryo are to arise, as is suggested by Nos. 2, 3, 4, 5. These stages
cover the seventh and eighth days. Nos. 6 to 14 figure actual embryos,
No. 6 of nine and a half, No. 14 of fifteen days. No. 6 is singularly
twisted into a spiral form, the reason for which is still undiscovered.
No. 9 shows the condition at eleven days—notice the limbs, a leg in
front and a leg behind, each only a small mound as yet upon the sur-
Fic. 36. A CHICK REMOVED FROM AN EGG, WHICH HAD BEEN INCUBATED 10 DAYS AND
2 Hours. Magnified four diameters. Atter Keibel.
face of the body; the distinct eye, the protuberance caused by the heart.
Nos. 11 and 12 show the embryonic shape at twelve and a half and at
thirteen days—there has been a great increase of size with accompany-
ing modifications of form. The next pair, Nos. 13 and 14, present us
embryos of fourteen and fifteen days, respectively, and you see that
the growth is very marked indeed, and the change of form obvious;
the creature is now changing from the embryonic type into something
resembling a rabbit. Other pictures could readily be added, but, though
two weeks must still elapse before the animal will be ready to enter
the world, it is not necessary for my present purpose to include this
period in our survey. We need only contemplate, it seems to me, the
series of drawings in Fig. 37 to realize that the early embryonic growth
AGH, GROWTH AND DEATH 213
of the rabbit, like the embryonic growth of the chick, proceeds with a
speed which is never paralleled by the growth during later stages.
Fic. 37. FOURTEEN STAGES OF THE DEVELOPING RABBIT, after Minot’s and Taylor’s ‘‘ Nor-
mal Plates.’ All the figures are magnified four diameters. Nos. 2to5 are irregular as to age,
but show successive stages of development. The early development is extremely variable and
the observations do not yet suffice to determine the average typical condition for each day
under nine.
No. 1. Embryo of 7% days. No. 8. Embryo of 10"days.
No. se 84 se No. 9, “ 11 ‘ec
No. fe 844 No. 10. 72 BU ies
No. 5. ‘a rie ld No. 12. sf 13 =
No. a 9h * No. 13. “ 14 <=
le
24
oe
No. 4. J 8 “f No. 11. = IDOE te
5
6.
No. 7. if 10 A No. 14. As 15 a
214 POPULAR SCIENCE MONTHLY
Now I had a considerable number of rabbit embryos preserved in
alcohol, and though it was not very accurate to weigh them as alcoholic
specimens, in order to determine their true weight, yet I resolved to do
so as it was the best means at my disposal at the time. The result of
that weighing was very interesting to me, because it showed that in
the period of nine to fifteen days the rabbit had, on an average, added
704 per cent. to their weight daily; but in the period of from fifteen
to twenty days, the addition is very much less than this, only 212 per
cent. But these rabbits at ten days have already had a considerable
period of development behind them, and as we have discovered that the
younger the animal the more rapid its growth, we are safe, it seems
t» me—since we have learned that from the tenth to the fifteenth day
there is a daily increase of over 700 per cent.—in assuming that in yet
younger rabbits an increase of a thousand per cent. per day actually
occurs. That is not so extraordinary an assumption, for bacteria are
known to divide every half hour, and if the little bacterium divides and
grows up to full size in half an hour, and then divides again, it means
that within a half hour one bacterium has become two, and has in-
creased, obviously, 100 per cent.; and if those two again divide as before,
we should have four bacteria at the end of an hour—an increase of 400
per cent., and at the end of another half hour, of 800 per cent., and
so on ever in geometrical progression. We learn, then, that bacteria
may in a few hours add 1,000 per cent. to their original weight, and
it is not by any means an exorbitant demand upon our credulity to
accept the conclusion that in their early stages, rabbits and other mam-
mals and birds are capable of growing at least 1,000 per cent. a day.
If this be true, and it doubtless is true, we can adopt it as a convenient
basis for comparison. As we learned from the rate curves, which were
projected upon the screen earlier during the hour, the male rabbit gains
in one day immediately after birth nearly eighteen per cent.—seven-
teen and four tenths per cent.—and the female rabbit gains nearly
seventeen per cent. Now we can estimate the loss very simply by
deducting this rate, which is the capacity of the animal to grow per-
sisting at birth, from its original capacity, which we assume to have
been 1,000 per cent. per day. And if we do that the result is obvious.
Over 98 per cent. of the original growth power of the rabbit or of the
chick has been lost at the time of birth or hatching, respectively, and
the same thing is equally true of man. We start out at birth certainly
with less than two per cent. of the original growth power with which
we were endowed. Over 98 per cent. of the loss is accomplished before
birth—less than two per cent. after birth. That, I think is a rather
unexpected conclusion, certainly not one which, until I began to study
the subject more carefully, I in the least expected; and even now when
I have become more familiar with it, it still fills me with astonishment,
it is so different from the conception of the process of development as
we commonly hold it, from our conclusions based on our acquaintance
AGH, GROWTH AND DEATH 215
with the growth and progress of the individuals about us. We over-
look the fact that the progress which each individual makes is the result
of accumulation. It is as if money was put into the savings-bank; it
grows and becomes larger, but the rate of interest does not alter. So
too with us; we see there is an accumulation of this wealth of organi-
zation which gives us our mature power. But as that accumulation
goes on, our body seems to become,
as it were, tired. We may com-
pare it to a man building a wall.
He begins at first with great en-
ergy, full of vigor; the wall goes
up rapidly; and as the labor con-
tinues fatigue comes into play.
Moreover, the wall grows higher,
and it takes more effort and time
to carry the material up to the
top of the wall, and to continue to
raise its height, and so, as the wall
grows higher and higher, it grows
more slowly and ever more slowly,
because the obstacles to be over-
come have increased with the very
height of the wall itself. So it
seems with the increase of the or-
ganism; with the increase of our
development, the obstacles to our
growth increase. How that is I
shall hope to explain to you a little
more clearly in the next lecture.
We have one more slide, which
I would like to show you. It
indicates the rate of growth in
man before birth as far as it
can be indicated without better
knowledge. The time intervals
in the diagram correspond to
the so-called lunar months—the
ten lunar months of prenatal
life. Of our early development we know very little so far as statistics
are concerned, but from the third month onward we have some records.
It is found that from the third to the fourth month the increase is 600
per cent. Just contrast that with 200 per cent. added in one year
after birth; 600 per cent. in one month against 200 per cent. in one
year. From the fourth to the fifth month it is scarcely over 200 per
cent. It then becomes only a little more than 100. In the’ seventh
month, less than 100; and finally in the ninth and tenth months, it
216 POPULAR SCIENCE MONTHLY
becomes very small indeed, less than 20, so that during the prenatal
life of man, as we have seen in the prenatal life of the rabbit and of
the chick, the decline in the power of growth is going on steadily all
the time.
I shall use the few remaining moments to report to you yet another
bit of evidence of the originally enormous power of growth. It has
been estimated that the germ of the mammal, with which the develop-
ment commences, has a weight of 0.6 milligram; another estimate
which I have found is of 0.3 milligram.* Perhaps I can give you some
idea of what this value means by telling you that if the weight of the
original germ of a mammal is assumed to be 0.6 milligram, we could,
according to the laws of the United States, send 50,000 such germs
by letter postage for two cents. It would take 50,000 germs to make
the weight of one letter. That perhaps will give you some impression
of the extreme minuteness of the primitive germ. In the human
species at the end of even a single month it is no longer merely a germ,
but a young human being, very immature, of course, in its development,
but already very much larger. JI doubt—even after all that I have said
this evening about the startling figures of growth for the earlier
stages,—I doubt if you are prepared for the fact that the growth of the
germ up to the end of the first month represents an increase of over
a million per cent. How much over a million per cent. we can not
calculate accurately, because we do not know accurately the weight of
the original germ, but an increase of a million per cent. is not above
the true value. Contrast that with anything which occurs in the later
periods. What a vast change has happened! What an immense loss
has taken place! The rate of this loss is evidently diminishing. The
Icss occurs with great rapidity in the young—less rapidity the older we
become. I attempted to convince you in the first and second lectures
that that which we called the condition of old age, is merely the culmi-
nation of changes which have been going on from the first stage of
the germ up to the adult, the old man or woman. All through the life
these changes continue. The result is senility. But if, as the phe-
nomena of growth indicate to us so clearly, it be true that the decline
is most rapid at first, then we must expect from the study of the very
young stages to find a more favorable occasion for analysis of the
factors which bring about the loss in the power of growth and change
as the final result of which we encounter the senile organism. Not
from the study of the old, therefore, but from the study of the very
young, of the young embryo, and of the germ, are we to expect insight
into the complicated questions which we have begun to consider together.
I shall hope in the next lecture to prove to you that the supposition
which has guided my own observations is correct, and to be able to
show you that we do actually, from the study of the developing embryo,
glean some revelations of the cause of old age.
= These estimates refer to the placental mammals only.
SCIENTIFIC COMEDY OF ERRORS 217
A SCIENTIFIC COMEDY OF ERRORS
Jy Proressor T. D. A. COCKERELL anp PRrROFEssoR F. B. R. HELLEMS
UNIVERSITY OF COLORADO
en scientific man of any period, if he will examine the work of
his predecessors, may be comforted or discouraged, according to
his point of view. It is in the highest degree encouraging to note
the steady and rapid progress of science during the last two hundred
years and more. It is flattering to the vanity of us moderns to realize
that we stand on the very apex of the pyramid of knowledge which
the human race has erected at the cost of so much toil, and can look
down with indulgent contempt on the comparative ignorance of earlier
generations. How stupid they were! How little they knew !—but we
—well, there really never has been anything so superior. There is,
however, an ancient story about a monkey which climbed a pole and
for every three feet he climbed he slipped down two. Was the animal,
after all, certainly a monkey? Is there no similarity between his
progress and that of the human race? If the science of the past reads
to us to-day like a comedy of errors, is it perfectly certain that our
productions will not so appear to that hateful body of supercilious
critics, our posterity? On second thought, there may be in the his-
tory of human learning as much cause for modesty as for exultation.
As a tangible case in point we present a summary of the early history
of the cochineal and allied dye-producing insects, and more particu-
larly of a forgotten pamphlet by one Frederic Friedel, whereby he
earned the degree of doctor of philosophy at the University of Leipzig,
in 1701. For his time, Friedel was a man of unusual wisdom, filled
with the true spirit of science, so much so that he was not afraid to
tilt against the greatest of biological authorities then living, and, in so
doing, came out with a flying pennant. Yet, in the light of modern
knowledge, it appears that he corrected the blunders of Leeuwenhoek
only to make somewhat lesser ones of his own; not, however, through
lack of care or lack of sense, but from the unavoidable imperfection
of his knowledge.
From very early times, it was customary to utilize the coloring mat-
ter obtainable from certain small round objects to be found on various
species of oaks in the region of the Mediterranean. Dioscorides and
other authors report their occurrence in Galatia, Armenia, Cicilia,
Spain, Portugal and Sardinia: in later times they have been known
in the south of France, Crete and Syria; while the north of Africa
has furnished a less valuable kind. To Theophrastus they were known
218 POPULAR SCIENCE MONTHLY
2.0.3 ee
Inclyto Philofophorum Lipfienfium
Ordine confentiente., -
DISSERTATIONEM PHYSICAM
H, LQ.
Addi k,- Mart. Anno i7ot.
Placido Eruditorum Examini publice fubjiciet
PRESES
M.CHRISTOPH. FRIDERICUS
Ridter/ Lipfienfis,
RESPONDENTE
ERIDERICO Sriebdel/ ScaudizaeCiz. Mifn..
~ Med. Cult.
Pl PS 15
Excudebat CHRISTOPH, FLEISCHERUS.
as the xoxxos gouxos, While in later times the name Kermés, from
the Arabic, came into general use.
For many centuries the nature of the Kermes remained uncertain.
To all appearances it was a berry, and the opinion that it was of
purely vegetable origin prevailed. However, it appears that Quin-
queran de Beaujeu, as early as 1551, published a book on the pro-
ductions of Provence, entitled De Jlaudibus Gallo-Provincie, in
which he clearly indicated that the Kermes was an insect, and de-
scribed its transformations. ‘The supposed berries, says he, are the
mothers, who presently have families of innumerable very minute
worms. ‘These latter locate upon the twigs at various points, increase
in size, and at length look no longer like animals, but peas.
Planchon, to whom we are indebted for the reference to Quin-
queran, goes on to remark that it is curious that after these observa-
tions had been published, many intelligent writers showed hopeless
confusion upon the subject. In particular, it had been observed that
from the Kermes sometimes issued small four-winged insects not un-
like those coming from the oak-apples or galls. Hence it was con-
cluded that the Kermes must be a sort of plant gall, wholly made up of
SCIENTIFIC COMEDY OF ERRORS 219
vegetable tissue, but nourishing an insect. We know now, of course,
that the four-winged insects were merely parasites of the Kermes,
which lived as minute maggots within its body, destroying it and
finally issuing as adult flies.
With the discovery of Mexico, things took on a new turn. Fran-
cisco Hernandez and others reported that on the tuna, or prickly
pear, of that country there grew a new sort of coccus, which was much
to be preferred to the one found upon the oak, or to the scarlet grain
found upon the roots of plants in Poland.
This new coccus, which came to be known as the cochinilla, or
cochineal, was largely imported into Europe; and eventually the cacti
were brought over, and grown in Algeria, Madeira, etc., so that the
dye-material could be produced nearer the market. With the impetus
thus given to the study of coccus—or, as we should now say, the
Coccidee—the question as to the true nature of the material pressed
anew for settlement. According to the “ Encyclopedia Britannica,”
the idea that the cochineal was the seed or fruit of a plant was prev-
alent as late as 1725, but Martin Lister, in 1672, indicated its rela-
tion to the insects. In 1703, it is stated, Leeuwenhoek discovered its
true nature by the aid of the microscope, “but not unnaturally sup-
posed it to be allied to the ladybird.”
This statement of the case, however, is not quite exact. We have
before us a little pamphlet published as early as March, 1701, the
precise date, according to a penciled figure, being the fourteenth of
that month. This work is a thesis for the degree of doctor of phi-
losophy, presented to the University of Leipzig by Frederic Friedel,
and is entitled Dissertatio Physica de Cochinilla. In it, the whole
question of the nature of the cochineal is fully discussed, with copious
references to previous authors and many original observations.
The work consists of six chapters; the first on the name of the
cochineal ; the second on its habitat and the plants infested, with some
interesting information on the different kinds of cacti; the third on
various opinions concerning the nature of the cochineal; the fourth
giving the details of the author’s views as to its nature; the fifth on its
culture and the methods of collecting it; and the last on its different
varieties and its uses. The whole treatise is, of course, in Latin, but
we give a free translation of the parts with which we are particularly
concerned, abbreviating here and there.
After giving a general summary of the hitherto recorded observa-
tions and opinions, Dr. Friedel proceeds:
Therefore, this insect is a Coleopteron [beetle], so to speak sheath-winged,
or in a word, belonging to the family of lesser scarabs, which we recognize by
the almost round body, flat below and convex above, not less than by a reddish
and golden color, sprinkled with some black spots.
He then proceeds to set forth the names for the ladybird in dif-
220 POPULAR SCIENCE MONTHLY
ferent languages, bringing out the fact that these creatures are dedi-
cated to Our Lady, the Virgin Mary, or in other cases to God, for
reasons not explained. In France they are called God’s horses,
Chevaux de Dieu, in England ladybirds or cowladies, and so forth.
To these familiar ladybirds,
such exact resemblance is borne by the little animals which produce the coch-
ineal, that one egg could scarcely be more like another, if only you except the
size, in which the American beetle is observed to surpass ours, and the color,
which is not vividly red or scarlet or yellow in the foreign species, but dull and
brownish, with the spots red, the latter larger than those on our beetles.
The modern entomologist begins to wonder what all this has to do with
SCIENTIFIC COMEDY OF ERRORS 221
the cochineal, which is by no means a beetle, though truly an insect,
but the author proceeds:
Moreover, these statements that I have made about the form and appearance
of this beetle, that they may not be accounted the mere offspring of my brain,
can all be easily verified by actual examination; for dry specimens, complete,
generally, however, with the head and feet torn off, are found mixed with the
cochineal; or at least, as happens more commonly, elytra are brought out along
with the cochineal grains. I myself have found several points concerning these
little animals, complete or intact “for the most part, which exactly agreed with
those just described, so that all occasion for doubting the truthfulness of the
facts has been removed.
With this description, aided by an excellent figure given in the one
plate which ornaments the pamphlet, we are able without difficulty to
explain the mystery. The American beetle is the Chilocorus cacti, a
genuine ladybird, which does indeed live upon the tuna among the
cochineal insects, feeding upon them. When the latter are gathered,
the beetles are often carried with them, and Friedel, examining the
dried grains, naturally found the specimens he describes. In 1701
not much was known about the classification of insects, and it never
occurred to him that a creature like the cochineal, which we now know
to have a sucking mouth, could not be related to a beetle.
Yet, aware that scoffers exist, the author is constrained to proceed:
Howbeit, if this evidence of mine should not find full credence, look you!
here is Paulus Ammannius, who in his handbook to Materia Medica reports
that he also found such a little animal intact; and if perhaps he is not sufficient
authority either, take Leeuwenhoek and Tyson, of whom the former depicts little
insects of this type, found by him likewise, and the latter even gives an engraving
on copper of a cochineal scarab, and when you have compared the figures, you
will agree that it is as closely similar as possible to-mine. In the appended
plate, I offer one of those that I happened to find, along with our nettle beetle
[that is, the European ladybird, Adalia bipunctata], because the difference, as
well as the resemblance between them, will thus better meet the eye. I willingly
omit the references to other authors, such as Blanchard (Schauplatz der Raupen)
and Dale (Pharmacology), for the two just mentioned, Leeuwenhoek and Tyson,
are for me equivalent to all.
Friedel then proceeds to combat an opinion, which he attributes to
Leeuwenhoek and an anonymous Spaniard mentioned in the English
Transactions (of the Royal Society) No. 193, to the effect that the
cochineal is a portion of the adult American ladybird—the Chilocorus
cacti.
For it is disproved oy ocular examination, that the lower belly of this beetle,
if it shall have been stripped of its legs and head, and finally of its elytra and
wings, as indicated by Leeuwenhoek, exactly resembles the cochineal. Rather,
the form of these hinder parts of the insect differs as much as possible from the
little body of the cochineal; seeing that in the first place, in size it generally
very greatly surpasses the lower belly of the beetle, as I have found in more
222 POPULAR SCIENCE MONTHLY
than one case when I have removed from the intact beetles found among the
cochineal the parts just mentioned; and in the second place, I have noticed this
marked discrepancy, the abdomen of the beetle is never marked by more than
six or at the most seven distinct rings, but the number of these in every grain
of cochineal generally runs as high as 12, as can be seen with the naked eye,
or more distinctly with the aid of the microscope, especially if the insect has
been softened in water. Furthermore, a third difference will be noticed at the
same time—you will certainly observe the anterior half of the cochineal to be
furnished with some little swellings, beneath which lurk the feet of the insect
which are going to appear, and which the engraver has tried to show in the cut.
On the other hand, that the hinder parts of the beetles are always entirely
devoid of these swellings an examination places beyond limits of doubt. Add
to all these the fourth circumstance that the abdomen of the beetle does not
produce any purple color, and for that reason could little serve the purpose for
which this ware is imported from such distant shores. Although I subjected
certain of these trunks of the lower belly to different treatments, I never was
able to see even a tiny point of the desired color in them, while conversely, any
tiny cochineal will discharge the color in sufficient abundance and at once.
And finally, I have never been able to find in the belly of the beetle a single little
grain or egg, although I sought most zealously; whereas such are found in
great abundance in any cochineal which is broken up after having been suffi-
ciently macerated.
What an excellent argument! It is proven beyond doubt that the
cochineal is no part of the ladybird, notwithstanding the assertions of
the most eminent authority then living. We have no fault to find
with particulars given, except that the little prominences on the coch-
ineal, where the legs were hereafter expected to appear, were in reality
the bases of the minute legs of that insect.
Returning now to the constructive argument, the author gives his
conclusion that the cochineal must be derived from the aforesaid
beetles, and yet is not any part of them. The simple explanation is
that the cochineal, when mature, transforms into a beetle, and in doing
so utterly loses the power of staining, and hence is no longer to be
termed a cochineal. Now this loss of color at maturity is paralleled by
other phenomena already recorded. In the case of the dye-coccus of
the oak, the Kermes, so long as the little berries are full of little
worms or animals, they are rich in the colored juice. After a while,
when the little worms [the larve of the Kermes, in reality] are called
by the heat of the sun from their sacs [that is, the bodies of their moth-
ers| they can be destroyed by the pressure of the hand, and forced into
a mass which is appropriately termed vermillion. Otherwise, before
the exclusion of the worms, the dried berries will equally preserve the
desired color. It is just the same in the coccus polonicus [Margarodes
polonicus of modern entomologists], which is said to cling to the roots
of several herbs. These little bodies at a stated time turn into little
winged insects, as is stated by several authors, including Martin Bern-
hard in his description of the Royal Garden of Varsovie. As soon as
SCIENTIFIC COMEDY OF ERRORS 223
these insects [probably males of the Margarodes| fly away, they are
manifestly deprived of all color, and not only this, but the cortex
which is left retains nothing of the precious coloration.
So, says Friedel, since in all these different sorts of coccus the red
color disappears in the last stage, when the creature is transformed
into a fly or some other little animal, it is easy to understand why
the beetles produced from the cochineal show no red pigment. The
point is important, because it is necessary that the cochineal should be
collected in time, before its last transformation, and while it is still
swollen with the juice.
The analogy is here not very convincing, since the Kermes does
not turn into a single insect, but produces a multitude of “ worms,”
as Friedel clearly states. It seemed sufficient to him, however, and
he never got a glimpse of the true fact that the cochineal insects do
indeed turn into the beetles, in the same manner that the lamb may be
said, under suitable circumstances, to be transformed into the lion.
Assuming that the cochineal was the pupa of the beetle, it re-
mained to fortify this conclusion by still other arguments. In the
first place, Herrera and Laetus had given some slight account of the
development of the cochineal, from actual observation. From this it
might be gathered that there was at first a minute or mite-like insect,
which developed into the cochineal-grain. This accords very well, so
far as it goes, with what was to be expected according to the theory.
“That grain is covered on the outside by a certain thin tunic, which
contains shut up within it the little animal, which is soon to be trans-
formed into a beetle *—this is, however, an inference of Friedel’s, not
of Herrera’s.
“But,” says Friedel, “for a more beautiful illustration of my
hypothesis, I thought I might describe the transformation of the
European ladybird, which is certainly sufficiently allied to the Ameri-
can to permit accurate deductions to be drawn from it.” So he went
first to the book on insects by John Goedart “that very illustrious
painter of Middleton,” a work which several years back Martin Lister
had published in a new and revised edition. In this work, p. 274, it
appeared that first from little blackish eggs deposited in a sort of
circle on the leaves of the Ribes [currant or gooseberry], there sprang,
© from the nurturing of the summer air,” little animals, which immedi-
ately after hatching could scarcely move, until after an interval of
several days they learned to creep a little, and finally to run about
freely. ‘These insects were subsequently. observed to shed their skins,
like serpents, as they increased in size, and this was done four distinct
times, and last they obtained the final red skin, variegated with black
spots. To these statements the author added that as often as these
beetles stripped themselves of their skins, they fixed their feet firmly
in the place they occupied, and crept out, leaving the empty skin in its
224 POPULAR SCIENCE MONTHLY
natural form, so that at the first glance you would swear the little
animal was still standing there.
“Now,” says Friedel, “ As I read this, it can scarcely be told how
saddened I was, for the hope I had previously conceived was falling
into ruin.” The account of Goedart did not really seem to confirm
the hypothesis about the cochineal, for there was no description of any
stage that really corresponded to the grain. Friedel was about to
change his opinion in toto, when he “had another seasonable sugges-
tion from the most excellent Dr. Lang, to whose most faithful train-
ing I owe almost everything in the course of my medical studies.” For
as Dr. Lang was the first to suggest to Friedel the theory about the
nature of the cochineal which formed the subject of this thesis, so he
now came to the rescue with facts and experiments concerning the
German ladybird “ depicted as in life with an elegant brush in colors,
and most accurately noted from day to day,” all of which, in the year
just passed, Friedel was permitted to observe and confirm with his own
eyes.
Sure enough, in the month of June, on the upturned leaf of the greater
nettle, are seen very tiny egglets of a saffron color, adhering firmly. As may
be seen in our illustration, letter g, from these, a little later, are spontaneously
hatched blackish oblong little worms, below the size of a flea, but equipped with
six feet on the anterior part of the little body, see letter h. These little insects
are sluggish for some time after their birth, and scarcely move from their place;
until, after the lapse of several days, they acquire the necessary strength, and
running hither and thither, gather food, so far as we can see, from dew. [They
feed on aphides, but Friedel neither observed this, nor considered the fact that
mere dew was rather unsustaining!] After about three or four weeks have
elapsed, they reach a size such as is indicated under letter i. At this time, they
are elegantly ornamented on the sides with several yellowish spots, and their
color, dark before, is changed to an ashen hue, especially along the middle of
the back. Now this fleet-footed worm prepares itself for a metamorphosis, wan-
dering more tardily at first, soon hardly at all; and then, affixing itself by its
tail to a leaf, is wrinkled up as shown under letter k. By degrees the covering
drops off to the rear, and it passes into the pupula or nymph, of which the
anterior and posterior aspects are shown under letters 1 and m. The insect, even
in this state, still lives, as may be learned from its movement when touched.
It remains thus until the tenth and not rarely the twelfth day, when the covering
is broken, and there comes forth, the skin being left motionless, a beetle, which
at first is rather weak, and whitish, but changing in a few hours to yellow or
red, the black spots coming into view on the elytra.
This is really an excellent account of the ladybird, excepting only
the error as to its food, and from these observations Friedel felt en-
couraged to believe that he had put the finishing touches on his theory
of the cochineal; for was not the ladybird pupa just like it? “ But,”
says he, “if perchance this should still seem doubtful, here is a
further observation to confirm it. When a friend, addicted to trade,
gave me at one time a large enough heap of cochineal to examine, I
SCIENTIFIC COMEDY OF ERRORS 225
found mixed with it several worms, not yet altogether changed into.
pup, of a color which from ashen was becoming purple, and which
when immersed for a while in water, assumed the form seen in the
engraving under the letter C. Hence there came to me the suspicion
that under this form appeared the worm of the cochineal before giving
itself to rest; for that it certainly belongs to this family, I am per-
suaded by the purple color which it discharges into the water in
which it is immersed, just like the cochineal itself. For when all the
eggs of these insects are not hatched in one precise day it at least be-
comes probable that neither are all these worms in one moment trans-
formed into pups», or the beetles simultaneously creep forth from
these. So, without doubt, when the harvest of pupe is at hand,
several of these worms, which have not yet reached the pupa state, and
also several adult beetles, are shaken off at the same time from the
tuna. Consequently, we usually find them all mixed, in more or less
abundance, with the best cochineal.” The worms thus found may be
the true larve of the ladybeetle, or in other cases, the larvee of certain
two-winged flies of the family Syrphide, which also prey upon the
cochineal. ‘The presence of the flies is especially indicated by another
observation of Friedel’s—that he found even a few cup-shaped objects,
in which were occasionally seen some small grains of cochineal. Here,
he thought, were actually the skins left empty after the exit of the
beetles; but on further reflection he abandoned the idea, as they really
were not large enough to hold the beetle. The grains found in them
were very minute, and were doubtless only cochineal larve which had
wandered in by accident; and finally, some of these cups still con-
tained, not a beetle, but a single fly. These were, we may now rest
assured, the puparia of a predatory Dipterous insect, either a Syrphid
or a species of Leucopis.
By the time of Linneus, some fifty years later, it was clearly
known that the cochineal had nothing to do with the beetles, but
belonged to the Hemiptera. Even then, however, it seemed fated to
be a source of error and misunderstanding. When Linnezus was pre-
paring his great “ Systema Nature,” a friend of his, Daniel Rolander,
resident in the West Indies, sent him what he supposed to be unusually
fine specimens of the cochineal alive on a piece of cactus. Linnzus
naturally used these in making his description of the Coccus casti, and
until 1899 nobody seems to have suspected that they were not the real
cochineal. However, Rolander sent some at the same time to DeGeer,
who figured them, and from the account he gives, and indeed also from
that of Linnzus, it is evident that the Coccus cacti L. is no cochineal,
but a species of a quite different subfamily, which, curiously, has never
been found by any entomologist since it was discovered by Rolander.
VOL. LXx1.—15.
226 POPULAR SCIENCE MONTHLY
NOTES ON THE DEVELOPMENT OF TELEPHONE SERVICE
By FRED DELAND
PITTSBURGH, PA.
XIV. TELEPHONIC AND FINANCIAL ConpDITIONS, 1880-1883.
#K OLLOWING are the Bell statistics for the four years, 1880-1883:
On March 1, 1880, there were 138 Bell telephone exchanges, in
operation or about to open, while a year later the number had increased
to 408, a net gain of 270 exchanges, or of nearly 200 per cent. Though
only three years had elapsed since the first of these pioneer exchanges
was opened, on March 1, 1881, 66 exchanges were interconnected by
toll lines, Boston had toll communications to seventy-five cities and
towns, the total number of places for which licenses to build exchanges
had been granted was 1,523, and thirty-two contracts had been given
to build connecting toll lines. But, these 408 exchanges supplied tele-
phone service to only 47,880 subscribers located in 463 cities, towns
and villages, or an average of only 117 subscribers to each exchange.
At the close of the year 1881, the number of Bell exchanges had
increased to 592, with a total of 70,525 subscribers, located in 1,593
cities, towns and villages, while the average number of subscribers per
exchange had increased from 117 to 120.
On December 31, 1882, there were 1,070 Bell exchanges in opera-
tion, a net gain of 478 for the year, or of 81 per cent. This growth
represented an average increase of two new exchanges for nearly every
working day in the year. Yet the total number of subscribers was
only 97,728, or an average allotment to each exchange of only 91, that
is, 29 less subscribers than the average of the previous year. The
handiwork of the speculative builder of small exchanges, grasping for
quick profits, is here indelibly imprinted on the records. In the
large exchanges the high flat rate limited the growth to the wealthy
in the resident districts and to the larger business houses and pro-
fessional offices where telephonic communication was an absolute neces-
sity. This seems a reasonable conclusion to draw from a growth of
only 38 per cent. in subscribers and of 81 per cent. in exchanges.
And the record for 1883 is of the same delusive character. On
December 31, there were 1,325 Bell exchanges in operation in 46
states and territories, supplying service to 123,625 subscribers, and
giving employment to 4,762 persons. In other words, there was an
average of nearly four employees to each exchange, though the aver-
THE DEVELOPMENT OF TELEPHONE SERVICE 227
age number of subscribers connected was only 93. And as there were
many exchanges having more than 300 subscribers, it is obvious that
many others had less than 30, and thus were being operated and main-
tained at a continuing loss.
What were the financial conditions of the country during these
four years, 1880-1883? What was the character of the sentiment
prevailing among investors that enabled such anomalous conditions
to continue?
The year 1880, notwithstanding that a presidential election occurred,
proved to be an admirable period for the promotion of industrial as
well as speculative enterprises, and telephone projects of every char-
acter appeared to meet a hearty welcome at the hands of the investing
public. To the older licensees, enriched by the wisdom gained in a
whole year’s experience, it soon became evident that many of the new
exchanges were being built and operated only for speculative purposes
by local promoters, in anticipation of profitable consolidations, rather
than as a permanent investment for local capital. For the question of
equitable rates yielding a fair return on a legitimate investment, or
the unpleasant results in lowering the character of the service by giv-
ing unlimited calls at an unprofitable rate, thus loading the lines with
gossip and frivolous conversation, to the detriment of rapid, legitimate
service, did not concern the speculator. Where the older licensees
endeavored to warn local investors against accepting the speculator’s
statements without substantial proof, the latter felt justified in agi-
tating a public denunciation of what he termed the extortionate
rates of the older licensees. The natural result was that the specu-
lative exchanges had a big list of subscribers at unprofitable rates,
until consolidation brought a new management that proposed to take
care of the shareholders first and then give the best service possible to
the subscribers. This meant an increase in rates to an amount that
would insure a fair return on the investment; and then fully one half
the subscribers who had been reaping the advantage of unprofitable
rates promptly displayed their gratitude by giving up the service
rather than pay the increased price.
On January 21, 1881, many of the telephone companies in the
east suffered from the most destructive sleet storm that had visited that
section in a long period. So great was the weight of the sleet frozen
on the wires attached to roof-fixtures that in numerous cases the roofs
were wrecked and walls were damaged. Miles of the pole lines went
down, and in the main thoroughfares of the larger cities telephone
wires were inseparably entangled with telegraph and electric light
circuits. By reason of modern methods of construction, a disaster
of such a character could not now occur, though greater losses have
occurred in several sleet-storms. But this was the first serious wreck
228 POPULAR SCIENCE MONTHLY.
of the kind that the new telephone industry had had to face, and its
disastrous outcome was exceedingly discouraging. The immediate loss
to the New York company was nearly $100,000, while the indirect
loss in delaying extensions and improvements and in diverting invest-
ment from the treasuries of the injured companies was very large.
The only remarkable change in financial circles occurring in 1881
was the flurry in the stock market that followed the assassination of
President Garfield on July 2, 1881. To the far-sighted financier that
“agitation approaching a panic” may have indicated the beginning
of the general depression that gradually overspread the country and
proved most severe in 1885.
On July 14, 1881, the New York Tribune editorially asserted that
the agitation that cavsed the flurry was utterly without foundation and that
the proportion of business done upon a cash basis is larger than ever, and the
proportion of business done without borrowing, on the capital of the firms en-
gaged, is larger than ever. ... Nor has there ever been a time when the earn-
ings of the people were on the whole as large as they are now. Wages are good,
while prices are relatively low.
But from the telephone speculator’s point of view, the ill effect of
that July flurry was more than offset, so far as the investing public
was concerned, by the admirably wise and now famous telephone de-
cision rendered by Judge Lowell on June 27, 1881, in the suit begun
on June 22, 1880, in the Eaton-Spencer case. In part that opinion
read as follows:
If the Bell patent were for a mere arrangement, or combination of old
devices, to produce a somewhat better result in a known art, then, no doubt, a
person who substituted a new element not known at the date of the patent might
escape the charge of infringement. But Bell discovered a new art—that of
transmitting speech by electricity—and has a right to hold the broadest claim
for it which can be permitted in any case; not to the abstract ~ight of sending
sounds by telegraph, without any regard to means, but to all means and proc-
esses which he has both invented and claimed. . . . The claim is not so broad
as the invention... . An apparatus made by Reis, of Germany, in 1860, and
described in several publications before 1876, is relied on to limit the scope of
Bell’s invention. Reis appears to have been a man of learning and ingenuity.
He used a membrane and electrodes for transmitting sounds, and his apparatus
was well known to curious inquirers. The regret of all its admirers was, that
articulate speech could not be sent and received by it.... A century of Reis
would never have produced a speaking telephone by mere improvement in con-
struction.
President Arthur proved a worthy successor to the lamented Gar-
field, and his strong and conservative policy appeared to win the
confidence of the people, many of whom had been led to expect a more
radical and less safe administration. Thus the year 1882 opened
THE DEVELOPMENT OF TELEPHONE SERVICE 229
auspiciously for all speculative interests. But in February came the
notorious break in Richmond and Danville, from 219 to 130, that
flurried the stock market and increased the general uneasiness con-
cerning all investments. Nevertheless, the total volume of business
transacted throughout the country during the year was very large, no
less than $350,000,000 being expended in new railroad construction.
The general financial and commercial conditions that prevailed
during 1883 may be summed up as follows: There were 9,184 failures
with aggregate liabilities of $172,874,000, as against 4,735 failures
in 1880 with aggregate liabilities of only $65,752,000. Not only was
there a large decrease in the total volume of trade, making retrench-
ment in nearly every line of industry an imperative necessity, but a
general distrust of the integrity of all stocks and all bonds prevailed,
with a consequent enormous decline in the market values of many
securities, including even those of the new telephone consolidations.
An eminent financial writer in referring to the speculative fever that
had raged during the previous two years, 1881-1882, declared that:
Our whole people became wild upon the subject of railroad construction, be-
lieving that two or three dollars could easily be made for every dollar put up,
either by the success of their ventures or by the sale of their securities. In this
delusion the capitalist and the adventurer shared alike.
Nevertheless, notwithstanding these discouraging conditions, or the
gloomy outlook for the coming year, or the nine thousand failures
in other lines of business, or the low market value of the stock of
certain large licensee companies organized to absorb the handiwork
of the speculator as portrayed in numerous small and unprofitable ex-
changes, the art of establishing new telephone exchanges, especially in
small towns and villages, progressed even more actively in 1883 than
ever before. So many investors believed that it was only necessary
to establish any kind of an exchange in any kind of a village, no matter
how small or how unprofitable the rates might prove, to secure profits
of three for one, that the editor of an electrical journal wrote: “ No
fable concerning the telephone is too gross to receive credence; no
prediction of its future can be wild enough to provoke a smile.” And
the daily papers fed this delusion by constantly referring to millions
of dollars alleged to have been made in the telephone business, although
the parent company had paid no cash dividends prior to January, 1881,
all of which statements many readers accepted as applying solely to
exchanges established in small villages, just as three years earlier
many investors believed that large profits would be derived from
building small branch railroads. And had it not been for the many
investments made by farmers in railroad securities, in the aggregate
amounting to several millions of dollars, from which no return was
secured in many cases, it is quite probable that the farming community
230 POPULAR SCIENCE MONTHLY
would have developed a rural system of telephone service contempo-
raneously with its early growth in towns and villages.
Again, the infringing telephone companies, and they were numer-
ous, while their promoters were strong in political and financial
influence in the ’80’s, circulated the most absurd statements concerning
the millions that had been made in the consolidating of Bell operating
companies, and the manipulation of telephone stocks. One state-
ment read: “It is within limits to say that the entire property, rights
and franchises of the Bell company and its licensees could be duplicated
for one twenty-fifth of the stock capital invested.” Yet it is interest-
ing to note that during the three years, 1881-1883, in New York
state alone, one hundred and twenty-five infringing telephone com-
panies were organized and capitalized at an aggregate of two hundred
and twenty-five millions of dollars, a capitalization authorized by one
state only, and three times greater than the combined capital stock
of all the Bell companies in all the states of the union, including that
of the parent company.
Very fortunately for the investing public, few of these infringing
companies ever got fairly under way, even when the highest officials
in state and nation appeared to do all in their power to aid in filching
rewards honestly won and meritoriously bestowed. Moreover, it has
been stated that many of these infringing claims were offered to the
parent Bell company for small sums or large sums, depending upon
how gloomy or how roseate the outlook was. A comical phase of these
infringing competitive schemes was the certainty with which state-
ments would appear in printed circulars, that the telephone was first
exhibited to the public at the Centennial Exposition in 1876, and the
first telephone line was constructed in Boston in 1877. The fact that
they thus admitted that Alexander Graham Bell’s telephone was the
first telephone did not appeal even to their sense of humor.
Even the announcement on January 24, 1883, of Judge Gray’s
decision on final hearing in the Dolbear case, and of Judge Lowell’s
decision the following August, did not appear to discourage investment
in the securities of infringing companies, while both decisions served
to stimulate the building of small exchanges by speculative promoters
and the rapid consolidation of these non-paying properties into over-
capitalized organizations.
Judge Gray’s opinion in part was:
The opinion in Spencer’s case clearly points out that “ Bell discovered a
new art—that of transmitting speech by electricity—and has the right to hold
the broadest claim for it which can be permitted in any case.” ... The evidence
in this case clearly shows that Bell discovered that articulate sounds could be
transmitted by undulatory vibrations of electricity, and invented the art or
process of transmitting such sounds by means of such vibrations. If that art
or process is (as the witnesses called by the defendant say it is) the only way
THE DEVELOPMENT OF TELEPHONE SERVICE. 231
by which speech can be transmitted by electricity, that fact does not lessen the
merit of his invention, or the protection which the law will give to it....
Whatever name may be given to the property, or the manifestation, of the elec-
tricity in the defendant’s receiver, the facts remain that they avail themselves
of Bell’s discovery that undulatory vibrations of electricity can intelligibly and
accurately transmit articulate speech, as well as of the process which Bell in-
vented, and by which he reduced his discovery to practical use; that they also
copy the mode and apparatus by which he creates and transmits the undulatory
electrical vibrations, corresponding to those ‘of the air.
On August 25, 1883, the opinion of Judge Lowell on final hearing
was delivered in part as follows:
I decided in American Bell Telephone Co. v. Spencer, 8 Fed. Rep. 509, that
Reis had not described a telephone which anticipated Bell’s invention. The same
point has since been decided in the same way in England. United Telephone Co.
v. Harrison, 21 Ch. D. 720. It is admitted in the present case that the Reis
instrument, if used as he intended to use it, can never serve as a speaking tele-
phone, because the current of electricity is constantly broken; and it is essential
for the transmission of speech that the current should not be broken. The de-
fendant (Dolbear) now testifies that the Reis instrument can be made to trans-
mit speech, under some circumstances, if operated in the way which Bell has
shown to be necessary. In 1877, he several times expressed the opinion that
Bell made the invention, and that Reis did not make it. The experiment made in
the presence of counsel, which was intended to prove the correctness of the de-
fendant’s present opinion, was an utter failure... . At the former hearing in
this case before Mr. Justice Gray and me, we decided that the defendant (Dol-
bear), whatever the merits of his telephone may be, employs in it a part, at
least, of Bell’s process. No additional evidence has been given at the final hear-
ing, unless a further explanation of that already given may be called additional;
and I remain of the opinion expressed by the presiding justice at that time.
Telephone men were not alone in their realization that self-preser-
vation lay in concentration. For financiers were beginning to per-
ceive the wisdom in the original plan of one great company, to also
realize how dependent the future growth and development of the
industry was on a centralized policy, and to foresee that the product
of unity in purpose, in method, in management, would be serviceable
to users and profitable to investors. It was already evident that
telephone service had come to stay, that it was an important aid in
the transaction of business in every line of industry, and that it was
certain to have a revolutionizing effect on many phases of industrial,
commercial, professional and social life.
In its annual report for the fiscal year ending February 28, 1883,
the parent Bell company said:
From the local companies throughout the country the reports are encour-
aging. Most of them are now earning and paying dividends, and extending their
business with energy. An important feature has been the consolidation of local
telephone interests into large companies, covering many counties, and even in
several instances the whole or the greater part of entire states. This policy has
232 POPULAR SCIENCE MONTHLY
been assented to so far as its adoption seemed in the interest of convenient and
economical management, but it should not be encouraged to an extent that
would leave these companies entirely in the ownership of persons who are not
residents in the territory where the business is carried on. It has always been
our policy to keep local capital and influence interested in the business as far
as possible, and to this course may probably be attributed a good part of the
success which has attended the development of the business.
A year later the parent company reiterated the foregoing con-
clusions concerning care in consolidating companies and added:
In spite of the prevailing opinion that the development of the telephone substan-
tially under one control is against public interest, we believe that an intelligent
examination of this question would demonstrate that this is not true and that
in no other way could the desired results be obtained and the difficulties be
surmounted so rapidly and so well as by the present one.
Like the previous year, 1883 was a year of mergers; and when this
two-year period closed, the number of Bell companies had been reduced,
through absorption or consolidation, from several hundred to less
than one hundred, and the parent company was gradually getting into
a position where it could strongly influence the policy that should
prevail.
In some states practically all the exchanges were absorbed by one
strong company; in other states three or four companies aided in
bringing about the consolidation, and then divided the territory. For
instance, in the summer of 1882 the daily papers told how:
New York and Philadelphia capitalists are visiting various sections of Penn-
sylvania with a view to consolidate all local telephone companies between New
York and Pittsburgh into one general organization, with main offices in New
York, Philadelphia and Pittsburgh.
While the promoters failed in consummating so big an undertaking,
their efforts paved the way for consolidations more limited in scope.
In Massachusetts a combination known as the Lowell syndicate was
quite successful in consolidating many exchanges, some of which will
be more fully referred to in a following chapter.
Referring to the numerous consolidations of small local licensee
companies into new organizations chartered to work on broader plans,
the parent Bell company in its annual report for 1883 stated that:
the tendency towards consolidation of telephone companies noticed in our last
report has continued and is for the most part in the interest of economical and
convenient handling of the business. .. . As methods are devised for making
the telephone commercially useful over long lines, the advantages of this cen-
tralization of management will be still more apparent, as well as the importance
to the public of having the business done in large territories under one re-
sponsible head, with far-reaching connections throughout the whole country.
To make this service of the highest value io the people will be complicated
enough under one control. Were it in the hands of many competing companies,
the confusion resulting would be very serious, as the value of the telephone will
be largely measured by its capacity to give prompt connection with all parts
of the country.
THE DEVELOPMENT OF TELEPHONE SERVICE 233
The parent company also held that the securities issued by its
operating companies ought to represent legitimate values, not specu-
lative or estimated values based on what the plant might earn in the
future; that the intrinsic value of the telephone securities should be
made clearly apparent to investors, and that the established integrity
of the investment should be maintained by providing ample sinking-
funds and reserves to cover every contingency. Its expressed policy
was:
to encourage payment of dividends by local companies with a view to getting
local influence and capital interested in telephones, but it never encouraged the
payment of dividends except when earned.
Such conservative methods were not in accord with the sentiments
of speculators who preferred to experiment with the credulity of
thoughtless investors, so long as such experiments yielded rich profits.
The people believed the newspaper stories about the fabulous profits
small telephone exchanges were deriving from limited investments.
Then why destroy such honest beliefs by presenting cold facts? Con-
solidation of exchanges was a good thing; it meant large profits for the
promoters.
When these local exchanges were transferred to the management
of the new organization, it was quickly perceived that many sub-
scribers were receiving service at rates involving constant loss to the
company, as already stated. An increase in rates naturally followed,
which, in turn, resulted in some of these low-rate subscribers discon-
tinuing the use of the service. Sometimes from 25 to 50 per cent. of
the subscribers to these consolidated exchanges would drop out, and
the loss in the income anticipated from these subscribers upset many
plans. For most of these new organizations, in expectation of being
able to readily dispose of the new securities, had proceeded to recon-
struct the old plants absorbed with a view to giving a higher class of
service and of promptly and properly handling a large increase in the
number of subscribers. 'To meet the indebtedness thus incurred it was
necessary either to sell shares of stock at a price considerably lower
than the authorized price, or else to settle the indebtedness with the
funds set aside for dividend payments, and in lieu of cash payments
to shareholders to issue stock dividends. Again, this inability to
raise the funds necessary to make needed extensions and improvements
and to keep pace with the growing demands of the public, meant that
for an indefinite period the gross earnings must provide for all con-
struction and reconstruction, as well as for the operating and main-
tenance charges. In other words, in 1883-1886, until improved
financial conditions permitted the sale of telephone securities at rea-
sonable prices, growth and progress were necessarily limited within
narrow lines that yielded sure returns to the holders of stock certifi-
cates.
234 POPULAR SCIENCE MONTHLY
THE HEALTH OF AMERICAN GIRLS
By NELLIE COMINS WHITAKER,
SALEM, MASS.
N a paper, ‘Alumna’s Children,’ published in this magazine in
May, 1904, the wish was expressed that some one might determine
how far ‘ the way in which our girls go to school’ governs their health
in later life. This article is an attempt to consider that question.
To any one familiar with all that has been written on the health of
American women the subject must seem exhausted in one sense at least.
As one reads the different monographs giving the cause of woman’s
physical weakness, each writer dwelling upon some one condition which
is of itself entirely sufficient in his opinion to overthrow her health,
one can but think of the man who committed five murders and was con-
demned to be put to death five times. Yet perhaps there is a word
more to be said. A large proportion of the papers have discussed
college students or adult women and almost every serious consideration
of the health of the schoolgirl has been by a physician and necessarily
from his point of view. A girl is more fully and more normally known
to her mother and her teacher than to her doctor; they observe all
the influences of her life as he can seldom do. For some reasons a
wise mother would seem to be the one best fitted to speak on this
matter; she should know more intimately than any one else the nature
of her daughter. But the mother is limited to the conditions that have
operated in her own family. ‘The daughter’s teacher learns the per-
sonality of the individual girl with a thoroughness second only to that
of the mother and she knows just as intimately scores of other girls
who have grown up under vastly different conditions, so that she is
able to draw general conclusions as the mother of one or two can not do.
I have not come upon any full discussion of the health of our girls
from the teacher’s point of view; it is this that I shall try to present.
The delicacy of our American women, noted abroad and admitted
at home, is coming to be a tremendously vital question. The condition
apparently is peculiar to no class and it appears in the second genera-
tion of other nationalities immigrating here. Lack of fecundity is only
one of its indications. Does it not seem to you that most of the women
whom you know confess that they are ‘not very strong’? Nervous
exhaustion and what the newspaper advertisements call ‘ womanly
weaknesses’ are the most common ailments, but there seems to be in
women far more often than in men a lack of general vitality, an
inability to resist disease.
THE HHALTH OF AMERICAN GIRLS 2K
This state of affairs is generally admitted, but there is no evidence
that it was nature’s original plan. On the contrary, there is reason
to believe that the woman was meant to be quite as strong as the man;
nature has ordained the hardest tasks for her, and has given her a
wonderful equipment for them. Among primitive races the woman
is fully the equal of the man in strength, his superior in endurance.
Superior in endurance in certain respects she remains even under
modern conditions, as dentists and surgeons bear testimony. But where
has gone the vigor that she requires to meet the demands that life
_ makes of her? Is it the schools and the teachers that are responsible
for its loss?
I was moved anew to thought on the subject by seeing last June
the Ivy-day procession of a woman’s college and the next week the
graduating exercises of a large high school. The college girls looked
notably robust, sunburned as to cheeks and arms and hair, but attractive
for their evident health. They seeemed far above the average Ameri-
can women in their physical vigor and did not lead one to believe that
a college education makes invalids. The girls in the high-school class
—the man beside me, himself the father of one of them, expressed their
appearance adequately though bluntly when he said, “ Those girls are
a puny-looking lot.” The characterization was true of that class; is
it true of the average high-school girl? Consider the question for your-
self as you see in June the graduates of your local high school. And
those before you are the fittest who have survived; they are very few
in number compared with those who have dropped by the way.
Ten years ago I read an unforgettable paper written by a high-
school senior. She was a brilliant student who, maintaining the highest
rank in her class, had done the preparation for Radcliffe, but had given
up any hope of a college course because she was completely broken in
health. Her essay was a scathing arraignment of our public-school
course ; I have been trying ever since to determine how far it was just.
Discussion of the health of the students in women’s colleges is
always a popular subject ; has due attention been given to the physical
condition of the young girls in the public schools? The public schools
are of course immeasurably more important than the colleges. From
the beginning of our national life great sacrifices have been made for
the maintenance of our schools, sacrifices are still being made. They
are expensive in money; in most of our towns no other appropriation
is so large as that for education. They are also costly in the men and
women that they use up, the teachers that they suck dry of health and
strength and throw aside. The teachers seem to think that the work
is worth their sacrifice; the tax-payers give ungrudgingly for their
children. But if the physical vigor of the children or of a part of the
children is one of the expenses of the public-school system, then popular
education is costing too much.
236 POPULAR SCIENCE MONTHLY
The school system is a manufacturing plant and as such its effi-
ciency is properly judged by its output—that is, its graduates. These
are subject to physical examination as properly as to mental examina-
tion. ‘The boys in the last years of the high school seem encouragingly
robust. They usually take a little lower rank in their classes than do
the girls, but, as they would themselves express it, they do their work
“well enough’ and when their lessons are done they have supplies of
unexpended energy. In athletics they show considerable endurance
and many boys partly support themselves by working in shops and
offices outside of school hours. In their own homes they prove active,
hungry and without excess of nerves.
The condition of the average girl is manifestly different. She
appears to the casual observer anemic, flat-chested, round-shouldered
and out of symmetry, and a member of her family knows that she is
fickle of appetite, regularly subject to headaches, nervous and irri-
table. Some of the girls are frivolous, devoted to ‘society’ and to
trashy novels; the average is conscientious about her work and almost
morbidly painstaking. She worries over every lesson until it is pre-
pared as well as she can do it, probably after that because it is not done
as well as some one else could do it. Her study—and her worry—
exhaust her and any other work is a burden. At best she needs complete
rest after graduation; at worst she joins, perhaps for life, the ranks
of the women who are not strong. A large number of pupils leave the
high-school before completing their course. More boys than girls drop
out, it is true, but the boys go to earn a living or because they have not
met the requirements of the school. The girl very often goes by her
physician’s advice.
If we consult a doctor for an ailing high-school girl he makes a
diagnosis and a prescription almost at sight—“ over-study ; take her out
of school.” Often he does not find it necessary to inquire about any
other habits of hers except her habit of study. But is her going to
school the chief factor in the girl’s breaking down? If so, things were
better managed in the days of our grandmothers when no girl had
much public schooling after she was fourteen years old.
If a girl breaks down under a course of study on which a boy
thrives does it indicate that she has less mental power? We dislike to
admit it and the experience of our teachers does not in general indi-
cate it. Why should we attribute the widely different result to the one
thing that is exactly alike for both sexes? Brother and sister come into
the world with the same mental and physical heritage. The girl in-
herits tendencies of body and mind from her father quite as much as
from her mother. The boy and the girl have the same food and the
same course of study. At the high-school age the development of heart
and lung and brain is at about the same stage in both sexes; the girl
is a little nearer to her adult weight and height. What circumstances
THE HEALTH OF AMERICAN GIRLS 237
of their lives have been different for them? When do they begin to
show differences in themselves? From a very early age there have been
certain differences—in clothes, in occupation and in recreation, but
these have manifestly been superficial and insufficient to account for
the contrast. Very little difference appears between the sexes until
they are nearly through the grammar school. Then a great change
comes to the girl. “ My daughter has become a woman” is the phrase
which our grandmothers used to describe the epoch; and far as the
callow, fourteen-year-old maiden seems from womanhood, the term is
the exact expression of a vital truth.
It is at this very beginning of woman-life that especial attention is
needed. We know that the boy who is overworked before he gets his
growth is always an undersized man; just as surely a girl who is over-
worked physically or mentally during her period of puberty is always
an undeveloped woman. And mental overwork is fully as injurious
as physical overwork.
To speak plainly, the maturing girl must have blood and vitality
to perfect the organs essential to her complete being and to establish
regularly the periodic function characteristic of her sex. She must do
these things at the time appointed. If she must choose between
developing mind or body let her by all means choose nourishment for
her physical growth. The mental expansion can come later, but the
physical perfecting has no second chance. If there is lack of develop-
ment or unbalanced development at this time she is pretty sure to endure
suffering for the best part of her life. From careful investigation of
the physical condition of a large number of girls it has been found
that from “65 to 70 per cent. enter the higher institutions of learn-
ing and business with menstrual suffering of some sort.” In some occu-
pations the rate of suffering is as high as 91 per cent.
And the girl may be called upon to bear other sorrows harder than
pain for a woman to endure. The injury from arrested development
may not appear at once, though flat chest and narrow hips may suggest
it; but when life demands of the woman that she do a woman’s work
she is unequal to it and is broken down in her attempt. Dame Nature,
herself the representative mother, has her own idea of the function of
women in the scheme of things. When they are fulfilling her purposes
she gives them marvelous protection, but woe to those who try to stand
against her!
Just as soon, then, as signs of change appear in the girl she should
have especial care. To quote from Dr. Engelmann, “She should have
personal talk and explanation from a woman who has learned the mean-
ing of wifehood and maternity.” To supplement from President Hall,
“The quality of motherhood has nowhere a more crucial test than in
meeting the needs of this epoch.” In general the girl should have at
this time no mental or nervous strain to divert nourishment from her
238 POPULAR SCIENCE MONTHLY
physical development. At best, if she is strong, does her work without
worry and “ normalizes her lunar month” promptly, she may stay in
school without much danger provided she take her two days of rest
periodically. JI am inclined to believe that this is in all cases worth
while until the end of the high-school course, although it is always
impracticable to make general rules. A number of women who consider
themselves perfectly well so far as sex weakness is concerned have told
me that they believe their health due to their year of complete rest at
puberty and that they did not find the need of monthly rest after the
first years.
I am coming to be convinced, somewhat against my wish, that there
are many cases when the girl ought to be taken out of school entirely
for some months or for a year at the period of puberty. This course
is supremely worth while if she shows irregularity of function or
decreasing vitality, and it is at this time that there is profit in such
an especial vacation.
I do not speak with ill-considered lightness of taking the girl out
of school for a year. It is a serious matter to her at a time when she
is likely to take all her life too seriously and when she should feel as
free as possible from annoyance. She is naturally disturbed at leaving
her class, especially if she is likely thereby to lose a grade. It is
worth while to take considerable pains to minimize her distress. If she
enjoys a pleasant visit out of town until the term is well under way,
then returns to private lessons with her mother or some other wise
teacher, lessons determined in time and length by her physical con-
dition, she may endure her enforced vacation from public school without
much fretting. The anxieties of this period ought to be borne for her
as far as possible; that she should become anxious about her own health
would defeat the very end in view. She can be assured that days out
of school now are pretty sure to remove the necessity of days or weeks
or months out of school later in her course. Similarly two days out
of school every month the first year that she is in the high school in
order that she may not suffer are really much better worth while than
two days out of school the last of the course because she is not able to
be present. These days of rest are not in the least incompatible with
good work in school; a girl so cared for may be expected to accom-
plish more in a year than she who has no such restraint. Mothers
protest again and again that such a custom is entirely incompatible
with modern school demands, but I have never known a teacher to say
that it was not quite practicable, and I have seen school work done under
this régime to the entire satisfaction of all concerned. It is perhaps
worth while to record here the questions of one grammar-school teacher
—“ Why will not mothers tell me when the critical period begins for
their daughters? Many times I can determine for myself, but in general
I could make things so much easier for the girls if I could only know
when they need especial indulgence.”
THE HEALTH OF AMERICAN GIRLS 239
No, the objection to periodical rest does not come from the teacher
nor primarily from the mother, but from the girl herself. Yet if our
thoughtful mothers could be convinced that “ the health of a girl for her
whole life depends upon her normalizing the lunar month,” to employ
a phrase of President Hall’s that I have quoted before, they would
bring about the best order of things. But most mothers honestly believe
that no great care is necessary. They expect their daughters to get
along about as well as they did and they suppose that about so much
pain is necessary for women. Mothers could hardly escape being con-
vinced of the great responsibility that is upon them at this time if all
the evidence that exists on the subject could be brought to their at-
tention.
It is undoubtedly true that each month in a woman’s life is a con-
tinuous wave with a regularly recurring succession of phases and this
continuity of change makes an ingenious argument that a woman does
not need especial rest at any particular time of the month. But my
own observation would have convinced me that it is supremely worth
while to guard an adolescent girl from nervous strain during the days
when the wave of her vitality is at its lowest point even if physicians
and educators had not spoken so strongly in favor of the custom.
Dr. Mary Putnam Jacobi, in the monograph which she wrote to show
that there is nothing in the physical nature of the adult woman to
incapacitate her periodically for work, says nevertheless, “In adoles-
cence and during the first years that the reproductive wave of nutrition
is being formed mental work exacted in excess of the capacity of the
individual may seriously derange the nutrition”; and elsewhere in the
same paper she says, “It is curious to note how the effects of misery
and the effects of luxury during the childhood of a girl are found so
often to result in an identical mode of stunting during adolescence.”
Much that has been written on the subject of puberty in girls has
been printed only in medical and educational journals. Perhaps some
women of delicacy may say that the discussion of such a matter is
properly confined to medical journals. To a certain extent this is un-
doubtedly true; the trouble is that the average mother does not have
easy access to those files. Therefore it seems worth while to quote at
some length in this paper.
The idea that a girl needs especial care at her time of maturing is
not a new fad of educators. In the time of Hippocrates it was noted
that the period of puberty was very critical for the development of the
nervous system. The rites enjoined by Moses provided for the care of
the girl at this crisis and a similar provision appears in the code of
Zoroaster. Savage nations to-day prescribe and protect by their super-
stitions definite observances for the woman at every period of her sex-
life from the beginning to the end. ‘The women of the North Amer-
ican Indians, always regarded chiefly in reference to their utility,
240 POPULAR SCIENCE MONTHLY
nevertheless have assured to them by custom from three to five days
every month so long as the monthly law rules them.
With the present increased attention to the study of preventive
medicine, students of gynecology have come to believe that the diseases
of women are in good part due to their “ignorance of functional
hygiene.” In 1901 Doctor Engelmann gave as his president’s address
at the annual meeting of the American Gynecological Society a paper,
“The American Girl of To-day,” which entirely covers this subject from
the physician’s point of view. In brief his opinion as there expressed
is: “Adolescence is the most important period of a woman’s life, the
period during which the foundations of future health are laid. It is
in this period of school, the beginning of social life, the period of learn-
ing in trades that the nervous energies of the female are most fully
engaged and her activity is concentrated on the brain to the detriment
of other functions, above all the developing sexual function, the central
and most important and at that time the most easily disturbed.”
Dr. Wylie has expressed his opinion that “the American horse re-
ceives on the average better treatment than the young women of
America from the time of early girlhood until the age of development
is passed.”
President Clark and Professor Tyler have studied systems of educa-
tion with especial reference to the physical development of children. In
his book ‘ Adolescence,’ President Hall devotes a long chapter to the
subject of ‘ Periodicity.’ He is himself convinced that the health of
a woman for her whole life is determined in her days of adolescence,
and he cites so many witnesses, ancient and modern, learned and
savage, that the most unbelieving reader can but be convinced while
she reads.
Professor Tyler, as a student of biology and education, has consid-
ered what bearing the laws of growth have upon the proper arrange-
ment of courses of study. In his lectures on ‘The Physical Basis of
Education’ given last winter in Boston before the Twentieth Century
Club he said, concerning the development of girls during their school
years, “ At the critical period of puberty almost every organ in the
girl’s body is affected. [The girl’s] pubertal period is much more
likely to be stormy than the boy’s and her rate of morbidity is consid-
erably higher. Her future health and happiness, if not her life, de-
pend upon the successful completion of the metamorphosis.”
A valuable addition to our knowledge of schoolgirls has been made
by Dr. Helen Kennedy. She collected statistics of the habits and the
health of girls from a large city high school; her article includes her
questions and the answers of the students, so that we may draw our
own conclusions. We note that while nearly all the girls report them-
selves as growing no worse during their high-school course, 97 out of
the 125 say that they suffer to a greater or less degree. All Dr. Ken-
THE HEALTH OF AMERICAN GIRLS 241
nedy’s results are interesting and full of suggestion, and much light
upon the health of our women would come from further investigations
along these lines. From her data and that of others, it is to be noted
that most girls between sixteen and twenty suffer more or less; and
that alike for students and working girls the percentage of sufferers
increases during that time.
My belief that most girls have the foundation of their suffering
laid before they are sixteen may be unwarranted, but I have found no
data that contradict it. Quoting again from Professor Tyler, “The
critical period in a girls life is evidently the years between ten and
fifteen, earlier than most of us think. Most of our care and thought
is devoted to locking the barn door after the horse has been stolen.”
And once more, in the phrase of Dr. Engelmann, “the younger the
girl, the nearer the period of puberty, the more impressionable the
system, the more susceptible to influence for good or evil and most
harm is wrought in the first year of functional life.” I quote much
from Dr. Engelmann, but where can I find better authority, especially
in this particular phase of gynecology ?
I have given a large part of my discussion of the health of our girls
to a consideration of the demands of sex at adolescence, but perhaps
this extent in treatment is not disproportionate to its importance in
their lives. When a girl is safely guided “through the breakers of
puberty ” we have some reason to expect for her life-long vigor and the
power to do. But she needs also through the rest of her school days
intelligent direction in other respects. It sometimes seems to the
teacher that she does not get quite as much as she needs.
The teacher is expected to see all that goes on in the schoolroom;,
in addition to this she does see evidences of a great many things that
go on outside the schoolroom, things which, though they largely affect
the results of her work, she has little power to modify. The personal >
habits of a girl determine to a great extent what she is able to gain
from her course of study. If it is important that her nourishment be
directed at all times to the most immediate needs of her body, surely it
is no less important that there should be sufficient nourishment to
satisfy these needs.
Every girl knows that this sufficiency of nourishment is impossible
unless she assimilates plenty of food, but she does not always make her
knowledge evident in her habits. Very often the high-school teacher
is asked to excuse from the session, on account of headache, some girl
who admits when questioned that she has eaten no breakfast that
morning. It is possible for the teacher to point out to the girl the
folly of starting a locomotive for a day’s run without providing fuel,
but the girl must have some pressure brought to bear upon her at home
if she is to take sufficient time for her meals. Insufficient breakfast is
VOL. LXxI.—16.
242 POPULAR SCIENCE MONTHLY
often due to late rising; if the girl has not time enough to dress and to
eat, it is not the dressing that is hurried.
With the usual five-hour high-school session the girl needs at recess
a proper luncheon. If the school has a lunch counter where only suit-
able food is provided, then it is well, but in case the luncheon comes
from home the teacher often wonders whether the mothers are accessory
to the mince and lemon pies and the fruit cakes that make the daughters
unfit for study. At the end of the long session the girl comes home
with little appetite or power of digestion. In a working-man’s family
dinner was served more than an hour before, and the plateful of food
that has been kept warm for the daughter is hardly palatable; prob-
ably she makes her meal chiefly out of the dessert. It is tremendously
worth while for the mother to preside personally at this meal of her
daughter and always to have tempting, nourishing and easily digestible
food ready for her when she comes home from school.
The blame for a high-school girl’s dyspepsia is often attributed to
the one-session system; and under that system a bad order of things
is easy, aS we have seen. On the other hand, with one session very
much better conditions are possible than with two if the best use is
made of the time out of school. It ought to be possible for the greater
part of the pupils to work under better conditions at home than in
most schoolrooms; and when they are in school until four there is
little time for being out of doors in the sunlight during most of the
school year.
The girl who is insufficiently nourished craves abnormal things and
eats sweets and sours in unsuitable proportions. With all these sins
against her digestion much of her food is not assimilated. Very often
the waste is not properly eliminated; the girl does not realize that this
condition is a menace to her health and so her whole system is poisoned.
Constipation is a disease and the cause of many others; it is entirely
incompatible with perfect health or good work in school.
At least one strong article has been written—by a physician—to
maintain that women’s mode of dress is a sufficient cause of all their
physical distress. Undoubtedly it has been responsible for great injury,
though present conditions are much improved, so far as tight or long
clothing is concerned. We appreciate, however, that women are still
handicapped when we see how their ordinary clothing hampers them
in gymnastic work. Just at present school girls expose themselves to
the cold in a way unsuitable to this climate. Even in winter they go
to school bareheaded, in lingerie waists with light undergarments, cot-
ton hose and low shoes. The toughening process is valuable to a cer-
tain extent, but such exposure as this means an expensive strain upon
vitality. School girls are notably careless of wet clothing and wet feet.
Mothers have difficulty in persuading them to overshoes and rain-coats,
and teachers find them unwilling to go home when skirts and stockings
THE HEALTH OF AMERICAN GIRLS 243
are wet through. To sit in wet clothing is dangerous even for an adult
woman.
This paper is intended to deal especially with those elements of a
girl’s life that are detrimental to her health, yet are usually overlooked.
It is hardly necessary to include much discussion of the need of sleep.
Every one understands that a girl needs about nine hours of sleep in
pure air. At present there is a general enthusiasm among young people
for outdoor air. If they do not take sufficient sleep it is not because
they do not know the need of it.
The recreation of a girl ought to do something toward her re-
creation, not leave her more exhausted than all her work. But those
who have studied the physical development of the girl tell us that the
excitement and nervous strain of society and late hours are much more
exhausting than hard study for a young girl. This does not mean that
she should give all her time to her lessons, only that her amusement be
something less wearing than study. She ought to have good times,
she is the better for parties if they are limited to reasonable hours and
to suitable companions. One element of a high-school girl’s life which
is seldom mentioned, but is often noted by her teacher, is the detriment
that comes to her from social intercourse with those who are a few years
older than she, especially with older men. Ifa girl spends one or two
evenings a week in the cultivation of such friendships as these and reads
a romantic novel every week it is to slight profit that she spends the
rest of her time “over her books.” It is pretty nearly impossible for
her to concentrate her mind on her work.
It is a very common criticism that there is too much social life in
the school itself. It is admitted, at least in this country, that children
need some amusements. Jf other social distractions could be omitted
what could give a school girl more harmless pleasure than the class
dances and parties, under the direction of a teacher-chaperone, parties
that include only people of her own age and experience and that close
at a proper hour?
A girl’s real re-creation is her out-of-door sports and she should
receive every encouragement to those that she most enjoys. The imple-
ments of such sports—golf-sticks, tennis racquets, boats and skates—
are better investments for parents’ money than even pretty clothes, if
there must be a choice of expenditures. Housework is one of the best
possible forms of exercise if done in well-ventilated rooms; it might be
profitably taught by mothers under the name of physical culture.
Music study is, I believe, hardly to be classed as a recreation, even
though it happens that the pupil enjoys it so much that it does not
appear a burden. It is mental work requiring close attention, memory
and some eye strain. It makes about the same demands as an extra
course in school, and if it seems best for the girl to continue much
piano-prictise during the term, she should take five years for her high-
244 POPULAR SCIENCE MONTHLY
school course. {ften a collapse in school that seems inexplicable to
the teachers is due to a pupil’s adding an hour or two a day of piano-
practise to an already full school course. It is worth while for the girl
to take music lessons during the summer if she is within reach of
piano and teacher ; the discipline and regularity are a good thing during
these weeks of complete freedom.
Many pupils suffer from eye-strain; every possible care should be
taken at home to minimize this, both for the sake of the eyes and for
the direct influence upon the mind and temperament. Study before
breakfast is very likely to aggravate eye-strain; if there must be early
study the pupil should bathe her eyes in cool water and take some food,
that the congestion of the eyes may be relieved. A proper light lessens
the fatigue of the eyes. By day the student should not face the window
and at night her lamp should have an opaque shade. Often the change
from a white to a dark-green shade relieves long-continued pain in
the eyes.
Reference has been made to a girl’s spending time “ over her books,”
and the phrase is sometimes especially accurate. Instructors of college
freshmen complain that boys and girls go through preparatory school
without having learned how to study. The teachers may be responsible
for a part of this, but there are some conditions that the most devoted
teacher can not govern. She can regulate a pupil’s work in school, but
when much of the study must be done at home the home must help in
establishing good habits of work. A student needs a well-lighted work-
room reasonably free from interruption. It is not necessary that the
window have an extended outlook; a girl is likely to establish herself
for her afternoon’s study where she can get a wide view of the street.
With a little attention the daughter of the house may be helped by her
surroundings at home to a concentration upon the work at hand that
will lessen marvelously the hours that she must spend with her books
and give her more time for recreation.
Elements internal and external, elements physical and mental, have
been treated together in this discussion and inevitably so, for they are
almost indistinguishably interwoven in the life of the girl. How much
her health of body depends upon her health of mind no one can venture
to say. One feminine characteristic becomes especially evident in the
adolescent maiden which has considerable influence upon her health.
This is the narrowness of mind that causes her to give undue impor-
tance to really minor elements of her life. She comes to believe that
there are only two or three things in the world that are really impor-
tant; if she is an only child she may decide that there is only one.
It is undoubtedly desirable that a girl stand well in her class and wear
attractive gowns, but there are other things just as essential. When
she sees that it is worth while to hold fast to “a taste for simple pleas-
ures ” and to promote the happiness of her family and community, and
THE HHALTH OF AMERICAN GIRLS 245
supremely worth while to make herself an able woman physically, she
is well on the way to the attainment of a poise of mind essential to her
health and to her breadth of thought. Much of her narrowness may
be eliminated by the public school and that very effective education
which a child’s companions supply. But there are certain chambers of
a maiden’s mind especially suitable for her mother’s furnishing; in the
most intimate relations of a girl’s life she must naturally find her
direction at home.
And is not this the conclusion of the whole matter? Undoubtedly
the girl does need “the complementary wisdom of school and home,”
and sometimes when every precaution is taken at home the school work
may be too hard for the girl at some particular time. In this case the
parents must lay the matter before the teachers; in some way the work
must be lessened, so that a growing girl does not come through each
week exhausted. But in most cases it is found that it is not the work
that exhausts.
The American girl needs the public school. She needs it for its
democratic influence, really a powerful element in the mutual under-
standing between women, which alone can solve the “ servant problem ” ;
she needs the acquaintance with boys of her own age which banishes
sentimentality; she needs the broadening influence of men-teachers.
Tt does not seem on the whole that there are many points in which the
school can do more for the girl than it is doing; it is not in general
conditions that she needs more consideration. For it is true that “ the
teacher has to deal with the average; the parent must accommodate the
particular,” and that “it is to the parent that the child must look for
his (and her) individual protection and care.”
In brief, as soon as a girl comes to manifest her difference of sex,
she needs especial and intelligent protection at home to free her from
strain mental and physical. And when her health and future fulness
of life are thus established, they must be guarded by continued oversight
of her food and clothing and exercise and recreation and sleep. Her
mental and nervous strength must be conserved by guiding her into
orderly ways of thought in the personal and intimate matters that obvi-
ously do not belong to the public school. When these elements of her
life are properly administered at home the American girl can in or-
dinary cases complete the course of study in the public schools without
injury to her health.
The articles to which especial reference has been made are:
“Rest during Menstruation”: Dr. Mary Putnam Jacobi.
“The American Girl of To-day ”: Dr. George J. Engelmann.
Article in New York World: Dr. W. Gill Wylie.
“ Adolescence”: President G. Stanley Hall.
“ Effect of High-school Work on Girls during Adolescence”: Dr.
Helen Kennedy.
246 POPULAR SCIENCE MONTHLY
SOME ETHICAL ASPECTS OF MENTAL ECONOMY
By PROFESSOR FREDERICK E. BOLTON
STATE UNIVERSITY OF IOWA
aA be economical of one’s powers makes for efficiency ; to be prodigal,
makes for inefficiency. To be efficient in life is the highest ethics.
To be inefficient because of prodigality is to be immoral.
It will be observed that in this discussion I follow the Aristotelian
conception of ethics as a practical science, rather than as a theoretical
science. The object of the discussion is to consider certain modes of
mental life, to evaluate them, and to offer a few guiding suggestions
for the proper conduct of life.
Professor Paulsen has compared this view of ethics with the science
of medicine, which he says, “instructs us to solve the problems of
corporeal life, to the end that the body may perform all its functions
in a healthy manner during its natural existence; while ethics, basing
itself on the knowledge of human nature in general, especially of its
spiritual and social side, aims to solve all the problems of life so that
it may reach its fullest, most beautiful and most perfect development.
We might, therefore,” he concludes, “ call ethics universal dietetics, to
which medicine, and all the other technologies, like pedagogy, politics,
etc., are related as special parts, or as auxiliary sciences.” (“ A System
of Ethics,” p. 2.) The purpose of ethics, then, is “to determine the
end of life, or the highest good, and to point out the way or the
means of realizing it.”
This much by way of definition is given preliminary to my discus-
sion of mental economy as a phase of ethics, in order to justify my
treatment when I seem to digress from the immediate consideration of
right and wrong and to discuss questions which might properly be also
catalogued under pedagogy or mental hygiene.
All will agree that no life is most nobly lived unless it has secured
the complete unfoldment of the richest inheritances bequeathed by
ancestry ; unless it has appropriated environment in such a way as to
secure the limits of individual advancement; unless it has rendered
the utmost possible service to society. To fail in these particulars is
to be prodigal and uneconomical. ‘To be uneconomical is to be un-
ethical. The world is full of work to be done, problems to be solved,
which are of proportions never before assumed. 'To meet these duties
and responsibilities requires the highest products of intellectual eyolu-
tion, keen and broad sympathies, and vigorous, sustained will-impulses.
To live completely and ethically, every one should accomplish more
ETHICAL ASPECTS OF MENTAL ECONOMY 247
than his parents. This means not only that he should secure more
tangible results, but that he should develop and expend more force than
his ancestors. Each one stands on the shoulders of the past and may
utilize all the accumulations of the past. In order to accomplish more
than our forefathers, it is absolutely necessary, however, to husband our
forces. But with the increase of potentialities, we must also reckon
with the fact of the manifold additional ways inviting and exciting to
depletion of powers. As an illustration, let us note the excessive stimu-
lation to which the eye is subjected. In our present civilization we
have come to depend more and more upon vision. The strain upon the
eye in gaining knowledge of the objective realities about us has been
increased a thousandfold by modern modes of travel. In addition, we
must use the eye to interpret language symbols about myriads of things
inaccessible to personal inspection. Primitive man had only a narrow
range of things to see, and those usually at some distance. Hence he
knew not of eye strain resulting from the microscopic scrutiny of a vast
kaleidoscopic scene. Formerly man could deliberate in seeing the few
things within his range. But now he becomes a globe-trotter, com-
pacting into a few weeks the view of scores of nations, vast expanses of
country, the collections of ages, and the unceasing activities of the
heterogeneous throng.
In a week’s jaunt and doing a world’s fair, present-day man sees
more and hears more, than was possible in a whole lifetime, a century
ago. Besides these activities the eye is made to do duty in reading the
twenty-four-page daily, the forty-eight-page Sunday edition, in scan-
ning a half-dozen weeklies, going through a cartload of magazines,
to say nothing of all the latest books which one is supposed to read.
The ear is equally assailed with the ceaseless hum of voices, door
bells, telephone calls, whir of the trolley, the shriek and clang of the
locomotive, the maddening grind of the sleeping car or the twin-screw
steamer (upon which we take our vacation rest!), the deafening roar of
the factory, the clatter of galloping hoofs and rattle of wheels over
paved streets. Even at night we must be assailed, business must not
stand still, goods must be sent by return mail, limited trains must
outdo lightning specials. Even on Sundays we are not permitted
to listen to restful sermons—they must be such as to give rise to
glaring head-lines, and the music is often of ear-splitting pitch.
The first and foremost great law of mental dietetics that should be
impressed early and often is that one long ago stated by Juvenal, viz,
mens sana in corpore sano. Every parent and every teacher should
understand that the first business of the child is to become a good
animal; childhood years should be largely vegetative. His primal in-
heritance is physical. To have big lungs, firm muscles, elastic step,
ruddy cheeks and scintillating, unspectacled eyes, and every sense alert,
at the close of youth are priceless possessions with which a knowledge
248 POPULAR SCIENCE MONTHLY
of algebraic formule and a few dates in history are not to be com-
pared. For what shall it profit a man if he gain the whole world of
knowledge and have not physical power to use it?
Not only is a sound body an absolutely necessary correlate of a
sound mind, but mental processes themselves are incomplete without
muscular accompaniments. How vague would be our ideas of walk-
ing, talking, writing, painting, molding and chiseling without the
muscular accompaniments. You can not even think hard of a word
without involuntarily moving the muscles. Try it sometime by open-
ing the mouth and thinking the word bobbin, bubble, ete. So-called
‘mind reading,’ table turning, the planchette, all illustrate the same
fact.
Again, the body possesses all the gateways to the soul through
which all knowledge of the outside world must come. Close the eyes,
stop the ears, and deaden all the other sense-organs and the child is
mindless—an idiot. Finally, no message can issue from the mind,
nothing of its workings can be revealed and no control of the world
forces be secured, save through the medium of physical organs—the
muscles.
Consequently, to secure the highest mental efficiency we must give
due consideration to bodily culture. Any education which disregards
this is a failure. Every student should have sufficient food, adequate
sleep, proper exercise, abundant recreation and in every way seek to
promote bodily vigor.
The Socratic doctrine of innate ideas has been responsible for many
pedagogical sins. Socrates taught that the business of teaching was to
draw out these inborn ideas. The middle-age ascetics went so far as
to assert that spiritual development could be best furthered by bodily
torture. Consequently, in order to elevate the mind they strove to
devise tortures to crucify the flesh. We read of their fasting, eating
inappropriate foods, going barefooted and otherwise scantily clad in
the dead of winter, wearing hair shirts with the hair inside; bathing in
ice-cold springs in winter, sitting on sharp nails, assuming unnatural
and extremely uncomfortable postures for months at a time, binding
the body with ligatures, loading the body with weights, living in filth,
going without sleep and working all day and all night, ete. Simeon
Stylites is said to have lived for forty years chained on the top of a
high pillar and Macarius slept for months in a marsh, exposing his
naked body to the stings of venomous flies, in the misguided notion
that the greater the bodily penance the more exalted the spirit be-
came. In fact they tried to devise every possible means of excruciating
torture of body in the attempt to exalt mind. To this pernicious doc-
trine of the relation between body and mind can be traced much of
the long intellectual night of the middle ages. To it are directly
traceable the beliefs in witchcraft, demonophobia, sorcery and the
ETHICAL ASPECTS OF MENTAL ECONOMY 249
superstition that insane people were possessed of evil spirits. Pro-
fessor Monroe (“ History of Education,” p. 248) says, “the virtue of
the monk was often measured by his ingenuity in devising new and
fantastic methods of mortifying the flesh—all these forms of dis-
cipline were for the sake of spiritual growth, the moral betterment of
the penitent: all these, as the very significance of the word asceticism
indicates, reveal the dominant conception of education which prevailed
throughout this long period,—the idea of discipline of the physical
nature for the sake of growth in moral and spiritual power.” So
long as the body was considered gross and evil and a mean tenement
of clay from which the spirit should strive as soon as possible to escape,
it was but natural that bodily care, and much less culture, should be
considered unworthy objects of education.
Sleep as a factor in student life does not receive adequate considera-
tion from many students. The student who does not take regular and
sufficient sleep is pilfering his own bank account. There is absolutely
no substitute for it, and when once lost, restitution can not be made
even by a nap in the class-room. Nervous tissues exhausted by a day’s
activities can only be restored by sleep. Dr. Hall says that no child
should be allowed to go to school without having had nine hours of
sleep and a good breakfast. This would not be a bad rule to guide
student life. Parties, athletic jaunts, examination crams, and even
working for one’s living, which cause students to remain awake beyond
the midnight hour, transgress all laws of mental and physical hygiene.
There is doubtless no cause so frequently producing nervous breakdown
as loss of sleep. Several former students who were pale and anemic
while here have returned after a hard year’s teaching experience with
ruddy complexion, increased weight and all the appearances of vigor-
ous health. I have inquired concerning the change and have been
answered, “I guess it is because I get enough sleep now.”
The student who goes to college to become a hermit, not touching
elbows with his college mates and developing no interests through
hearing music, attending lectures on varied subjects, seeing nothing of
the great busy world about him, misses a vital factor of college life.
His procedure is uneconomical and therefore unethical, for when he
emerges from the college halls into the busy, bustling world, he will
find himself behind the procession. Because he has not seen the larger
world while acquiring his book knowledge, he perceives no relation and
often feels that the world is somehow out of joint because it does not
conform to his bookish ways. To become efficient he must begin again
and study the world about him. He must gain its view-point, adjust
himself to it; he must now try to gain friendships which should have
been established in college. All this is a wasteful, selfish process.
On the other hand, some students need to be cautioned when they
make the opposite and equally grave error of saying that “ My asso-
250 POPULAR SCIENCE MONTHLY
ciates teach me more than my books and class work.” Possibly they do,
but it is not the fault of the books nor of the classes, nor any compli-
ment to*the associates. He says, “I study men, not books.” This is
sound, if rightly interpreted, but he should know that there are some
men besides freshmen well worth knowing. Some of them can only
be known by going to their books. He should learn to study indi-
viduals as well as masses, the world’s teachers as well as his own
classmates; he should look up as well as around. The college course
is certainly a failure if it has not given the student lasting acquaint-
anceships with a few superior students, some great men on its faculties,
and many of the world’s intellectual élite, who can only be known
through the pages of history and the great literatures of all ages.
Great ideals which become guiding stars of one’s destiny should be
clearly glimpsed. The great laws of science should have banished
superstition forever from his mind and given him a new interpretation
of universal development and history. Finally a clear conception of
philosophical principles should act as a great balance wheel enabling
him to interpret life and all its manifold activities. It is through
books and master minds that the student should get meaning for all
his varied observations and activities. To regard books and class work
as inferior and something to be endured is to miss the whole point of
a college education. Colleges are founded and maintained for the
specific purpose of furnishing books and teachers, and all class work,
once selected, should have the right of way. Student programs should
not be so overloaded but that all the accessories may be duly em-
phasized. Recreation as well as work should become a part of one’s
religion. The gospel of relaxation needs evangelists as well as the
gospel of work.
It is important for the student to understand early the force and
value of habit. Much time is lost by every one of us because our
early training did not render automatic all those activities that we
have to perform constantly and in the same way. Purely mechanical
work can be controlled more economically by lower nervous centers than
by higher. In childhood and youth the nervous system is plastic, a
prime condition for memorizing and fixing habits. Among the habits
that should become ingrained during this period are those of correct
bodily postures and activities, correct speech, the multiplication table,
spelling, writing, those involved in learning to speak foreign lan-
guages, etc. Most habits are controlled by the spinal cord, which is
early developed. Hence we should form habits early, so that the
brain may be relieved later of mechanical work and be concerned with
higher operations. As Dr. Balliet has observed, “ At first a child
uses his brain in walking, later he can walk from habit and walks
therefore with his spinal cord. As first we spell with painful con-
sciousness, later we spell familiar words of our vocabulary with little
ETHICAL ASPECTS OF MENTAL ECONOMY 251
or no consciousness. Children ought to be trained to write and spell
mainly with the spinal cord, and use all their brain power in thinking
the thoughts to be expressed. We do many things with the spinal cord
to relieve the brain. We walk with the spinal cord, we write and
spell with the cord; I suppose we knit and gossip with the spinal cord ;
indeed we may sing and pray, not with our hearts, nor with our brains,
but with the upper part of our spinal cords. We tip our hats to each
other, not with our brains, but mainly with our spinal cords; when
we meet people whom we do not wish to see, we often shake hands
_ mechanically with our spinal cords—hence we speak of a ‘ cordial
welcome.’ ”
Not only do these elementary physical activities become automatic,
but also processes of judging and reasoning must become largely
mechanical before becoming serviceable. One’s thinking is largely
specialized and judgment outside of the well-beaten track of thinking
is not very valuable. The lawyer’s opinion concerning disease is slowly
formed and unreliable; the doctor’s judgment about legal matters
likewise is valueless. The expert in a given line is one who has studied
widely and who can form instantaneous judgments because of the
habitual consideration of the data. Difficult studies pursued through
a long time until mastery is complete become as simple as the alphabet.
Mathematicians become so familiar with the calculus that they read
it for recreation when fatigued with other work. The lawyer can
instantly cite scores of cases and precedents for which the tyro would
have required hours to summon to the foreground of consciousness.
Hence, when knowledge is to become usable it must be pondered long
and every detail absolutely appropriated. To arrange work in such a
way as to sustain interest through variety and at the same time dwell
upon it until thoroughly comprehended and appropriated is high
teaching art. The demands for variety frequently allure to new
fields before assimilation has been effected.
Even the will is much more a matter of habit than we usually think.
It is too often regarded as a sort of psychological ghost which pursues
us about, compelling us to do certain things and prohibiting us from
doing certain other things. Every one is supposed by the popular mind
to have at birth a will of unchangeable quality and quantity. This is
absolutely incorrect. The child has impulses but is practically will-
less. His will must grow and develop like any other powers. We use
the will when we perform actions which we control. When we lack
control, either muscular or mental, we lack will, or possess a diseased
will. When a child can pick up a pin, thread a needle, tie a knot, walk
without tottering, run, talk plainly, etc., he manifests definite mental
and muscular control and therefore manifests voluntary power.
Now these activities were only possible after long practise and the
development of definite habits of activity. As Dr. Royce says, “ Our
252 POPULAR SCIENCE MONTHLY
minds become full of impulses, of tendencies to action, of passions,
and of concerns for what we take to be our welfare. All these im-
pulses or concerns get woven by the laws of habit into systems of ruling
motives which express themselves in our regular fashions of conduct.
The whole of our inner life viewed in this aspect appears as the pur-
posive side of our consciousness, or as the will, in the wider sense.”
We even need to put new interpretation upon the meaning of the
freedom of will. Freedom means power of choice, power of desire, but
not necessarily power of execution. The life-long habits of every
individual chain him down to certain types of action and it often takes
long practise to break up fixed customs and habits of activities. This
has its sad side and also its advantageous side. Were it not that we
willed with all previous acts of willing, and were it not true that all
our habits hold us to certain types of action, it would be impossible
to predict what the individual might do on a given occasion. When
we analyze the meaning of character, we find that it implies nothing
more or less than the accumulated tendencies toward action in par-
ticular directions. The man who has habitually acted in a righteous
direction has built up tendencies toward righteousness. On the other
hand, one who has sown a generous supply of wild oats in youth is sure
to reap in old age an abundant harvest of viciousness. It could not
be otherwise. We are enjoined in the Scriptures that ‘ whatsoever a
man soweth, that shall he also reap.’ A prose-poet has stated that
“we sow a thought and reap an act; we sow an act and reap a habit;
sow a habit and reap a character; sow a character and reap a destiny.”
Professor Fullerton says that the old interpretation of absolute freedom
would make this a melancholy world. In such a world of freedom no
man could count upon himself and no man could persuade his neighbor.
We should be powerless to lead one another into evil, but we should
be also powerless to influence one another for good. It would be a law-
less world with each man cut off from the great whole and given a
lawless little world all to himself. He said, “To-morrow I am to
face nearly one hundred students in logic. It is a new class. I know
little about its members, save that they are students. I have assumed
that they will act as students usually do and that I shall escape with
my life. If they are endowed with free will in the old interpretation,
what might I expect? What does free will care for the terror of the
dean’s office, the long green table, and the committee of discipline?
Is it disinterested in logic and does it have a personal respect for me?
The picture is a harrowing one and I drop the curtain upon it.”
Hence, from a pedagogical point of view, how important to fortify
the child by habits against that which is undesirable in conduct by
developing in him impulses and tendencies through experience in right
conduct. Right conduct in children there must be if we expect right
conduct in adult years. The man who has to reflect to keep his hands
ETHICAL ASPECTS OF MENTAL ECONOMY 253
from his neighbor’s pocket does not possess honesty of a very high
type. It is only the one who possesses no impulse to pick his neigh-
bor’s pocket and who does possess an instinct of abhorrence against
such an act that is really honest. The one who is tempted evinces
disease of will.
Independence of thinking is‘a rare but thoroughly economical
mode of activity. Many people are so unused to thinking for them-
selves that they would be frightened at the appearance in conscious-
ness of a thought really their own. It has been said that “animals
think not at all and some men a little.” Most of the thinking of the
world is carried on by a few individuals. The rest of the world are
mere echoists. This is a terribly wasteful process, and sinful. If
more people were independent thinkers there would not be a yearly
output of millions of barrels of patent medicines, the main ingredients
of which are alcoholic preservatives. Soothing syrups with opiates are
fed to children because they are said to cry for them. The children
are quieted, oftentimes so effectually as to be stupid through life.
“ Harmless vegetable remedies ” is a magical phrase. Perhaps this is
why so many take extract of hops and barley, spirits of corn, nicotine
and opium!
Because of lack of independence of thought, superstitions have
always hindered the world’s progress. Even to-day the number 13
is so ominous that you can not get a room number 13 at a hotel,
can scarcely have 13 at table. Friday is still considered so unlucky
that steamship companies hesitate to make sailing dates on Friday.
Farmers still plant their potatoes in the moon, and men carry potatoes
in their pockets to cure rheumatism. Only a few days ago I saw a
man in this city who had a rattlesnake’s tail in his hatband to ward
off rheumatism. Clairvoyants and fortune-tellers apparently find
plenty of dupes, if we are to judge by the wealth of their advertising.
Thus on every hand we find ample evidence that people are sinning
and being sinned against simply because of slothfulness in thinking.
In ancient times and in the middle ages the scholars shut them-
selves away from the world, quiet as it was, in order to avoid the dis-
tractions against thinking. While they erred in not recognizing that
the senses are the source of all knowledge, were they not wise in
recognizing that to think effectively demands solitude?
I wonder if there is not much in modern student life that militates
against the deepest thinking. With the multiplication of student
activities, of themselves in no way secondary to any others in im-
portance, have not the opportunities for sequestered contemplation de-
creased? With football, baseball, basketball, tennis, rowing, skating,
the literary society, the dramatic club, the freshman banquet, the
sophomore cotillion, the junior prom, the senior hop, numberless fra-
ternity, sorority, and various other house parties, the various church,
254 POPULAR SCIENCE MONTHLY
social and other engagements, besides the loafing hour, the theater, con-
cert, special lectures galore, the newspapers and magazines to scan, the
letters to write home and other places, applications for schools to
make, etc., one might well exclaim, “ And when do they find time to
study?”
Many students take on altogether too many activities. In my own
observation I have known several students who arrested their develop-
ment badly by getting too many irons in the fire. A student’s popu-
larity is not infrequently the cause of his intellectual arrest. By
attempting debates, athletics, dramatics, study and society, all at the
same time, his energies are dissipated, his growth stunted, while his
plodding companion by everlastingly keeping at a few things finally
becomes a master and frequently astonishes even himself as well as
his acquaintances. Even short courses with too much variety, except
for inspiration, are uneconomical, because they do not lay permanent
foundations. ‘Too many open lecture courses provided by faculties may
easily be distracting and a source of dissipation. The student must
learn to say no to the siren’s voice which continually beckons him on
to new fields.
I sometimes feel that there ought to be some course labeled
“ thinking ” in which the individual should be isolated from everybody
long enough to really empty his mind of all ideas which are merely
echoes, and then to discern what are really his own. With all the dis-
traction of congested social life, the time may come when it would be
a blessing for the state to imprison a few great men each year and
allow them only pen, ink and papér. It may have been a fortunate
thing for the world that John Bunyan languished in prison until his
thoughts had had time to germinate and come to full fruition.
Possibly the blind Milton, shut away from the distractions of visual
stimuli, may have looked within and discovered thoughts struggling
for expression, but stifled with ephemeral ideas of sense perception.
While we are rightly emphasizing group activities as an aid in de-
veloping altruism, I wonder whether students do not sometimes misin-
terpret its meaning. Self-activity is fundamental in the process of
acquisition of knowledge. No knowledge is of much value that is
not made one’s own personal possession. This means more than the
recital of words and formule gained from books and companions. In
their desire to be helpful I sometimes see students in groups, even
sitting on the stairways when the crowds are passing, believing they
are studying together. When one hears the bits of gossip interspersed
between the formule, the declensions and historical dates one wonders
where the calm reflection, deep concentration, analysis, comparison,
doubt, contemplation, deliberation, complete abstraction, enter in.
An oyersocial room-mate who persists in retailing the gossip of the
day during the hour set apart for study is an uneconomical acquisition.
ETHICAL ASPECTS OF MENTAL ECONOMY 255
Psychology has thoroughly demonstrated that we can consciously
attend economically to only one set of ideas at a time. Even much
note taking in class is an uneconomical distraction. The faithful but
misguided student frequently attempts to take down every word
uttered. He deceives himself, for what he hopes to carry under his
arm he should have in his head. No wonder that sometimes the less
scrupulous one who cuts classes and borrows notes instead of writing
them fares about as well.
In student life it is important to thoroughly master a task as
speedily as possible. To skim over a lesson and leave it without
mastery is wasteful. The process may be repeated a dozen times in
this way and then be only half learned. Hence, “ whatsoever thou
findest to do, do it with all thy mind and with all thy heart and with all
thy strength.” In mastering things for keeps two attitudes are neces-
sary—interest and attention. Attention is the mother of memory; in-
terest is the mother of attention. Hence, if you would secure memory,
you must capture the mother and the grandmother. It is the business
of us all to be interested in what we do, and it is unethical to regard
our work as drudgery. I sometimes say to students, you never will
be great successes as teachers until your work has come to occupy all
your waking moments and even your hours of sleep. It must be your
life. If you wish to know what you are interested in just catch your-
selves suddenly occasionally, when you have no prescribed task, to see
what you are thinking about. Those great dominating, insistent ideas
indicate your real interests. :
May I say a word on the ethics of cramming for examinations?
The method is a delusion and a snare. Ideas are not grasped, asso-
ciations are not made, brain tracks are not made permanent, and even
though the student might pass an examination on such possessions, like
the notes of an insolvent bank they are found to be worthless trash
when put to real use. Instead of wisdom more to be prized than fine
gold, such a process may leave one with only bogus certificates. Make
your mental acquisitions absolutely your own while going over the
subject day by day, take ten hours of sleep before every examination
day, and the results need not be feared. In trying to make possessions
most permanent and most economically I give frequently the follow-
ing recipe: Study your lesson as if you expected to teach it. When
you can teach it to some one else you possess it. Frequently actually
try to teach your lesson. If your room-mate will not submit, inflict
it upon an imaginary pupil. Some one said, “I do not lecture to
instruct others, but to clear up my own ideas.”
Although young shoulders should not become bowed down by an
overweening sense of responsibility, yet it is sinful not to impress the
young with the importance of the morning of life. The old adage
256 POPULAR SCIENCE MONTHLY
that it is never too late to mend should be replaced by the one that
it is ever too late to become what one might have been, if an oppor-
tunity has been allowed to slip.
Students should early recognize the importance of making the most
of the morning of life. Biologists have come to recognize the economic
value of the period of infancy. The period of infancy is the period
of plasticity, the period when the individual can be molded and modi-
fied; in other words, educated. The longer the period of infancy, the
higher the degree of educability. The newly-hatched chick has a short
period of infancy. On emerging from the egg, it can perform almost
all the activities which it will ever be able to perform. It has very
little to learn, very little possibility of learning and very little time
in which to learn. The young dog has more to learn, a longer period
in which to learn it and larger possibilities of acquiring new activities.
The human being has the longest period of infancy. By infancy I do
not mean alone the period when the child is in the cradle. Biologically
it includes all the period of life from birth to maturity. It is the
period of plasticity, the period of educability. After this period, the
possibilities of education grow less and less. Perchance there are
freshmen who may peruse this. I desire to give you a few words of
comfort. You may be frequently derided by the learned sophomores
who call you “ greenies ” or “ freshies.” Take comfort and regard the
appellation “ freshmen” as a mark of honor rather than derision. To
be fresh or to be green means that you are still growing. All should
wish to be green and to grow as long as possible. May you live to a
green old age. Even the sophomores are all right. Woodrow Wilson
said, “A sophomore is one in whom the sap is rising but it has not
yet reached his head. He will eventually mature.”
Professor James says that one seldom gets an entirely new idea into
his head after thirty. After that period one may erect a splendid
structure upon the foundation already laid. But if any subsequent
structure is to be reared the proper foundation must have been laid
before that time. For “outside of their own business,” says James,
“the ideas gained by men before they are twenty-five are practically
the only ideas they shall have in all their lives.” We can not get any-
thing new, for disinterested curiosity is past, instincts have died out,
bonds of association have become fixed, “ mental grooves and channels
set, the power of assimilation gone.” Hardly even is a foreign language
learned after twenty spoken without a foreign accent. “In most of us,
by the age of thirty, the character has set like plaster, and will never
soften again.” The most possible should be made of early life, for,
although it is a fact that the number of cells in a given brain is com-
plete at birth, yet mental exercise must determine the number that
becomes fully developed. Moreover, the period for development lies
largely between birth and maturity. It is the period when nerve
ETHICAL ASPECTS OF MENTAL ECONOMY 257
matter is plastic and when growth and replacement exceed disintegra-
tion.
Brain workers do their best between the ages of twenty-five and
forty-five before that they are preparing for work, after that their
work, no matter how extensive, is largely routine. Lawyers and physi-
cians do much of their practise after forty, but the learning was ac-
complished before forty or forty-five. Successful merchants lay the
foundations for wealth and success in youth and middle life. The
great men that we know are all old men; but the foundations for
their greatness were laid when they were young. Philosophers have
founded and announced their systems in youth and early manhood;
divines and religious teachers have originated their creeds and have
been most effective as preachers in early manhood.
Statesmen have projected their greatest acts of legislation, diplo-
macy and reform in early life. In the morning of life scientists have
wrought out their data and practically formulated their theories; gen-
erals and admirals have gained their greatest victories; lawyers have
paved the way for leadership at the bar, physicians have laid the ground-
work for their greatest discoveries, poets and artists and musicians
have planned and in many instances executed their greatest master-
pieces.
You, young men and women of the colleges and high schools, are
picked individuals. A process of selection and sifting going on for
many years in your own lives, and for generations in your ancestors,
determined who should go to college. The state endows its universi-
ties to enable its intellectual élite to secure the development which
their native worth makes possible. The function of the school and
the university is not to create brains, but to mature them. The school
is like a problem in multiplication in which the student is the multi-
plicand and the institution the multiplier, and, as in mathematics, if
we have significant figures for our multiplicand the result is significant,
but if we have ciphers for the multiplicand the result must be zero.
Your efficiency in life depends largely upon your physical and
mental health and your habits of work, rest and recreation. To con-
serve your inborn potentialities and to multiply your talents is not
only a high privilege but your greatest immediate duty. To fail is to
be morally culpable, to succeed betokens true wisdom and virtue. No
worthier object of contemplation can occupy your mind than the So-
cratic admonition, “ Know thyself.”
VoL. LxXxI.—17.
258 POPULAR SCIENCE MONTHLY
THE CHINAMAN AND THE FOREIGN DEVILS
By CHARLES BRADFORD HUDSON
' DETROIT, MICHIGAN
Wea ancient examination halls at Peking have been transformed
into a military school. ‘To the western mind there is nothing
startling in the item, nor significance beyond the fact that it suggests
that China is at last rousing from her centuries of complacent intro-
spection and retrospection, and purposes to learn something which the
rest of the world has found useful. A mere change in the curriculum of
certain Chinese students, it would seem, of less interest to mankind
in general than if Oxford should suddenly abandon the study of divinity
or the humanities. But to the Chinaman it means more. It is a
change of greater moment, more revolutionary than would be the over-
throw of the Manchu Dynasty. Indeed, a dynastic change would be
comparatively an insignificant and commonplace event. In the four-
teen hundred years since the course of studies was prescribed by which
the Chinese student fits himself to enter the aristocratic order of the
literati, and thereby to become eligible to government office, the celestial
empire has undergone a full score of revolutions, each one of which has
resulted in the establishment of a new royal line. But during that
period, which has witnessed the birth, decadence and death of christian
empires, the requirements of Chinese scholarship have been unchanged.
Until to-day, the student who presented himself at the triennial exami-
nation at Peking as a candidate for the highest degree attainable, the
“Chin Shi,’ or ‘ Enrolled Scholar,’ has been questioned on precisely the
same subjects, tested by the same literary standard in his essays, as his
predecessor of the sixth century; and has prepared himself for the
ordeal by the study of classics that were hoary before the christian era
began. ‘The change has come. Philosophy must yield a place to the
art of war. Its import to China, the most ancient, the most conserva-
tive, the most peace-loving nation on earth, is beyond our power to
estimate. Its portent to the world at large is hardly to be conceived ;
tc be conjectured, however, on a review of some of the features of the
rough schooling by which this placid people has been educated to its
needs.
It is many years since the powers began prodding the Yellow
Dragon, with bayonets and otherwise, in the determination to awaken
him from his lethargy; but it is only of late that they have begun to
ask, with a faint quaver of trepidation, ‘ Suppose he should rouse . .
THE CHINAMAN AND THE FOREIGN DEVILS 259
what then?’® The question has even provoked some slight symptoms
of hysteria, expressed here and there, when the monster has shown signs
of life in response to the systematic and persistent annoyance, in shrill
clamors about the ‘ Yellow Peril,’ with chilly sensations at the recol-
lection of the hordes of Jenghiz Khan. ‘The ery has been taken up,
echoed, and having served its purpose as an interesting bogie for the
newspaper-reading public, has been scoffed down; but there has re-
mained more or less speculation, not unaccompanied by misgivings, as
tc whether the dragon had not been better left asleep. The fact has
been taken into consideration rather abruptly and quite seriously that
he represents 400,000,000 people, capable of truculent forms of venge-
ance on occasion, and animated by a national feeling of a definite and
positive kind. These reflections might properly be productive of
uneasiness did we not reassure ourselves with the self-satisfying as-
sumption of the mental, moral and physical superiority of the Indo-
European race, and the conviction that it is our destiny to inherit the
earth. We indulge in a comparison of ourselves with the Mongolian
in a way which leaves him relatively far down in the human scale, and
have taken it for granted, hastily perhaps, that he can not rise. Ex-
perience has shown in the past that he was averse to fighting, and that
he could be expected to submit, with no resistance much more forceful
than a protest, to whatever imposition or exaction any bullying occi-
dental nation might see fit to make. As a consequence, the dealings
of the christian nations with China have constituted a long series of
outrages upon that country and of offenses to decency, at the catalogue
of which it is difficult to say whether one should be more astounded at
the Chinaman’s endurance, or humiliated by the shamelessness of the
white man’s oppression. We have fairly won our title of “ foreign
devils.” We bear it with composure, with a good-humored scorn or,
at most, with a mild resentment that the Chinaman can be so un-
reasonable as to give us the designation. But however we accept the
term it is quite certain that he applies it with earnest sincerity, and
that it is an expression of a hatred and contempt for the foreigner
almost universal throughout the empire.
There has been evidence enough of this hostility to make it seem
worth the while to inquire what its basis may be, but the question is
seldom raised. When raised it is usually answered by a vague refer-
ence to the Chinaman’s “ ignorance,” to his fanatic antipathy to chris-
tianity, his opposition to progress or his national egotism. To the
first of these it may be rejoined that he is not ignorant, in the sense,
at least, of being unlettered or unintelligent; for in no other country
in the world is learning more wide-spread or more highly honored, no
country has a greater literature, and few races are distinguished by
keener intellect that the Chinese. Their learning is not ours, and
judged by our standards their educational system is absurd; but it is
260 POPULAR SCIENCE MONTHLY
the one avenue to political preferment or social eminence, and no
village is too small or obscure to have its school, no boy too humble
to be eligible to its advantages. If their studies are confined to the
ancient classics, as were those of the European scholar not many gen-
erations ago, the defect is in part compensated by the absolute thor-
oughness required to enable a candidate to pass the examinations; and
whatever the practical value of the learning, the mental discipline is
of the most severe. It has produced a race of students; has developed
an intellectual capacity which, when a young Chinaman enters a
western university, makes him the peer of the best of his white fellows.
It is true that the Chinese are ignorant of the outside world and
its arts, and their ignorance is only surpassed by their indifference; but
their hostility to them is not traditional. In medieval times there was
a considerable and friendly intercourse with the nations of the west,
and christian envoys, priests and traders were welcomed, with what-
ever knowledge or commodities they could bring. From the seventh
to the tenth century the Nestorian Church made many converts, and
later the Dominican and Franciscan Orders established missions with-
out opposition. In the fourteenth century Catholic churches were so
numerous that the Papal See made China an archbishopric under John
of Monte Corvino. For that remote period commerce with Europe
was important, and flourished until overland communication was cut
off by the rise of Islam, leaving China for two hundred years forgotten
of the world.
The attitude of the Chinese toward systems of faith other than
their own has never been one of antagonism. In the first century an
envoy sent out by the emperor to bring back the religion of the west
returned with Buddhism, which was accepted as superior to the in-
digenous form of belief, and has now a more numerous following than
either Taoism or the philosophy of Confucius. Twelve hundred years
later the Venetian travelers, the Polos, were sent as emissaries from
Kublai Khan to the Pope with the request for instructors in christianity.
So far as religious belief is concerned the Chinaman is as tolerant to-
day as he was then. He has no enmity for christianity per se, and
objects to it only because he fancies its purpose and effect are to
alienate the Chinese convert—to make him, in his sympathies, a
“foreign devil.” This suspicion is sufficient to rouse his hostility and
provoke his violence. He hates the christian because he is a foreigner;
not the foreigner because he is a christian. He is far too well-balanced
and temperate to be a religious fanatic, and is possibly more liberal in
his views of questions of faith and worship than are we. Taoism,
the boundaries of the empire, side by side with the agnosticism and
atheism of the Confucianists, and there is no record of religious wars
or persecution, no history of an inquisition, no massacre of St. Bar-
tholomew, no ostracisms because of faith or the want of it. The
THE CHINAMAN AND THE FOREIGN DEVILS 261
Chinaman believes with moderation, and the gods he has bear lightly
upon him. The coolie propitiates his Joss, but when the wooden god
fails to respond in a satisfactory manner the devotee does not scruple
to maltreat him. Recently the great viceroy, Yuan Shih Kai, ordered
certain temples in Taotingfu to be cleared of their idols to make room
for police stations, and the images were thrown into the river. To
the worshipers it was a joke on the gods. “They are having their
first bath!” said one, and the crowd laughed with sacrilegious glee.
This is not the stuff of which the religious fanatic is made.
The opinion that the hatred of the foreigners arises from opposi-
tion to progress is based upon better grounds. The Chinaman has
opposed it, has resisted it with an inertia as of the everlasting hills,
but from his point of view he has been justified. One phase of western
progress is the development and use of labor-saving appliances: but
the introduction of such machinery into a Chinese community means
calamity. Their economic conditions are adjusted with delicacy so
great that it is only by incessant toil that the laborer can earn enough
to keep himself and his family from starvation, and the foreign con-
trivance which will accomplish fifty men’s work in one day may entail
famine upon forty-nine and their dependants. From their standpoint
the argument against machinery is forcible. We have excluded the
Chinese coolie from this country merely because he is able to do more
work and better work, and is willing to do it for less pay, than our
white laborers, though the danger of starvation to the class with which
the Chinese workman competed was not immediate, but extremely re-
mote. There seems to be a suggestion in this that possibly the China-
man is entitled to object, on his part, to the presence of the foreigner
and his machinery. His right to the recognition of his objection is,
of course, not to be considered by any power, because he is not yet strong
enough to enforce it. There are indications that some day he may be.
But even the question of domestic policy does not suffice to account
for the intense hostility which the alien has met everywhere in China,
manifested in repeated uprisings and the infuriate cruelty of mobs,
and which is too universal and obstinate to be attributable to mere
prejudice. The Chinaman is wholly rational—rational enough to per-
ceive, after due deliberation, the benefits to accrue from the adoption
of those products of western inventiveness which do not threaten his
livelihood, as may be inferred from the existence of modern arsenals
in full operation, from the rapidity with which railroad and telegraphic
communication is being established throughout the realm, and from
the evident purpose to learn more of the arts, peaceful and other, which
have been developed in Europe and America. It is to be assumed that
a people gifted with much good sense and a sobriety of mind beyond the
ordinary will not cherish a race-hatred so deep-seated, persistent and
uncompromising without good and ample reason. ‘The reason in this
262 POPULAR SCIENCE MONTHLY
instance is not far to seek. Simply stated, it lies in the circumstance
that they have found in their intercourse with white men that the
white man is a scoundrel. Other races have learned the same lesson
through experience disastrous just in proportion to the value of their
territory or property in the eyes of the rapacious Caucasian, and that
China has thus far escaped complete dismemberment is due solely to
the mutual jealousy of the powers which have long had that ambition
and design. Her losses of domain have not been great, but she has
been made to suffer, nevertheless, as no other civilized nation since the
wreck of the empire of the Incas by Spain. Her first contact with
Europeans in modern times began early in the sixteenth century, and
from the beginning it was of a nature to fully warrant the sentiment
with which she still regards them. Successively, the French, Portuguese,
Spaniards and Dutch descended upon her coasts, ravaged and destroyed
towns, and massacred their inhabitants. The Portuguese captured
Ningpo, and held it until the populace, enraged by their acts of cruelty
and oppression, rose and drove them out with heavy loss of men and
ships. Later, they seized and fortified the peninsula of Macao, and
after repeated efforts to expel them the Chinese government granted
the privilege of occupation, conditional upon the payment of 500 taels
annual ground-rent. In the treaty it was specifically stipulated that
China should retain sovereignty over the territory. This treaty, how-
ever, was so manipulated by the Portuguese translator that according
to the text of the copy which went to Lisbon all rights over Macao were
ceded to Portugal, China being allowed merely to maintain a consulate.
When at length the fraud became known at Peking the imperial gov-
ernment protested, but was forced, in order to avoid a war with the
invader, to formally cede the peninsula, which remains Portuguese terri-
tory. The Crown of Portugal draws a small revenue from farming
out the right to operate establishments for playing fan-tan, a game
prohibited by the laws of China.
In 1854 Macao became the seat of the infamous coolie traffic, which
for a quarter of a century paled the worst horrors of African slavery.
This trade was originated by the English to supply cheap labor to the
colonists of British Guiana. In the early years of the enterprise the
coolies were induced to emigrate on legitimate contract for seven years’
service at the rate of something over four dollars a month, with food,
clothing and shelter provided by the planters. After the independence
of Peru she entered the traffic to secure workmen for her mines and for
the guano pits of the Chincha Islands, and Cuba followed her example
to provide for her plantations. As the demand for the coolies increased
the means employed in procuring them became more and more un-
scrupulous. Labor agents infested the Chinese ports, the natives were
decoyed by fraudulent representations, systematic kidnapping was in-
augurated, armed junks were employed to raid the coasts for captives,
THE CHINAMAN AND THE FOREIGN DEVILS — 263
and prisoners were purchased outright from the leaders of factions
engaged in internecine wars. Depots were established at Macao where
the victims were herded under heavy guard until sufficient numbers
were obtained for a cargo, when they were crowded into transports and
shipped under conditions of misery, filth and brutality which surpassed
in atrocity those of the “ middle passage.” Arriving at their destina-
tion, they were sold like cattle to the highest bidders, to enter a servi-
tude which differed from slavery only in being for a limited period,
and in the fact that their masters, having no interest in them as prop-
erty of value, were concerned only to work them under the lash to the
extent of their endurance. Those were fortunate whose fate did not
land them in the Chincha Islands. Here they were forced to toil
under treatment so inhuman that of the four thousand wretches im-
ported from the beginning of the traffic until 1860 not one survived.
Those who did not die from the effects of cruelty and exhaustion com-
mitted suicide.
The efforts of China to induce the powers to suppress the trade were
of course unavailing. There was money in it. But when at length
the scandal became intolerable some perfunctory measures were taken
by those nations not financially interested, to end, or at least to modify,
the worst of its features, and in about ten years they succeeded in
making regulations, in concert with the Chinese government, which
rendered it unprofitable. But China had gained additional experience
of the “foreign devils.”
It would be unfair to Portugal to cite her case alone. She is not
unique, and far from conspicuous, among those who have proceeded on
the assumption that China has no rights which any able-bodied nation
is bound to respect. There has been a want of harmony in other
matters, but not in this. The helplessness of their victim has made the
same appeal to all, and they have responded in a course of brow-beat-
ing and bleeding with a unanimity of impulse that is astonishing. The
respectable Dutch were early in the game. In 1622, under no pretext
of war, nor with better excuse than might ease the conscience of a pirate,
they seized the Pescadore Islands, impressed the native inhabitants at
the point of the bayonet and compelled them to build fortifications.
From this stronghold they ravaged the coast and the Island of Formosa,
pillaging and slaying, but, finding it unremunerative, finally wearied
and withdrew. ‘The French were less direct in their aggressions and
began their spoliation, not in China proper, but in the Kingdom of
Annam, where a party of adventurers had gained a foothold in the
latter part of the eighteenth century by aiding in the restoration of the
deposed Annamese king, Gia Long. In 1859 the murder of a number
of missionaries led to the invasion of Annam by the French and the
seizure of several provinces. Later, the existence of mineral wealth
in Tongking, an ancient dependancy of China, was reported by French
264 POPULAR SCIENCE MONTHLY
explorers, and it was at once found necessary to despatch an expedition
into that country for the ostensible purpose of suppressing disorders
caused by bands of disorganized followers of the Tai-ping rebels. Dur-
ing the operations of the expeditionary force it came into collision with
the Chinese troops by which some of the towns were partly garrisoned,
and at the end of the war France found the circumstance to be worth
$15,000,000, which she compelled China to pay, in addition to the
cession of Tongking, which is now a French province. But in 1882,
before the hostilities had begun, and while the French minister was at
Peking negotiating a settlement of matters connected with Tongking,
certain French warships quietly dropped anchor in the harbor of
Foochow. Their coming had no appearance of menace, and the Chinese
were without suspicion that the visit was otherwise than friendly. The
fleet lay for several weeks, and its officers had exchanged the usual
courtesies with the authorities of the port; but suddenly, without the
slightest warning, the ships opened fire upon the imperial arsenal,
sank the Chinese gunboats at their anchorage before they could be
got under way, and continued the bombardment until the destruction
was complete. The action was wholly unexpected, unprovoked by any
act of hostility on the part of China, and though the relations of the
two countries were strained, diplomatic intercourse had not been in-
terrupted.
A more petty instance of outrage, but one quite as characteristic
of the methods pursued by the nations, occurred in 1860, when the
foreign legations were established at Peking. ‘The Chinese government
leased to the French minister for residence at a nominal rental the un-
occupied palace of one of the princes. The gentleman moved in, payed
his rent for two years, then claimed ownership and declined to make
further remuneration.
The recent acquisition of territory by three great powers is a matter
of familiar history. It was accomplished, on the part of Great Britain
and Germany, by the use of a formula which has proved in the last
fcrty years to be highly efficacious in extorting valuables from China
in a civilized manner and with an appearance of respectability, and
has been employed many times. The formula is simple in its nature;
equally so in its application. A power demands a concession, usually
of some desirable area of harbor frontage, and China, helpless to resist,
has no sooner yielded than she has the diplomatic corps about her ears
in a frenzy at the disturbance of the “balance of power.” Each diplomat
waves a claim for indemnity, and China, thoroughly cowed by long
experience, must restore the balance by further cession of property, or
by the payment of an equivalent in gold. Thus, at the end of the
Chinese-Japanese war, the victor restrained by concert of Russia,
France and Germany from holding Manchuria as the fruit of conquest,
had hardly evacuated Port Arthur before the place was occupied by the
THE CHINAMAN AND THE FOREIGN DEVILS “(265
forces of the Czar, and with reiterated assurances of a perfectly. honor-
able purpose to presently withdraw, they commenced the absorption of
the 400,000 square miles which Japan had been forced to relinquish.
At once Germany and England discovered that the “ balance of power ”
had been deranged to a degree that required the cession of Kiao-chau
to the one, and of Wei-hai-wei to the other. The balance of power!
Unhappy China!
But all these injuries, inflicted upon the most inoffensive race of
people on earth, accompanied as they have been by every form of
diplomatic bullying, coercion and insult, and not infrequently by
armed invasion, sink into inconsequence in comparison with the super-
lative infamy of the opium trade forced upon her by Great Britain.
For centuries the production and use of the drug had been prohibited
in the empire and punished with the utmost severity; but in 1773 the
British East India Company, which had the monopoly of the article in
India, smuggled a small shipment into the province of Kwang Tung.
The profits of the enterprise proved to be great, and by the end of the
century, notwithstanding the endeavors of the Chinese authorities to
suppress it, the illicit trade had grown to important proportions. The
government at Peking placed heavy penalties upon the importation,
but through bribery and intimidation of the customs officials the traffic
rapidly increased, and regular lines of swift, heavily armed schooners
and junks set the laws at defiance. On the expiration of the charter
of the East India Company in 1834 the opium monopoly fell into the
hands of the British government, which took up the business with
energy and protected it with the guns of a powerful fleet. Under these
auspices the smuggling continued with practical impunity until at
last, thoroughly alarmed at the rapid growth of the vice which was
fastening itself upon his subjects in spite of the penalties of trans-
portation or death for its indulgence, the Emperor ordered one of his
most vigorous officers, Commissioner Lin, to stop the trade at what-
ever cost. In 1839 this officer seized and destroyed at Canton an amount
of opium worth $9,000,000, and exacted from the dealers, Chinese and
foreign, pledges that they would not resume the traffic. But by. this
time Great Britain was deriving an annual revenue of over seven
million dollars from the smuggling, and outraged by the high-handed
action of the Chinese government in venturing to enforce its own laws,
promptly sent a military force to demand reparation. ‘The war was
disastrous to China, and she was whipped into a treaty of “ amity and
commerce,” compelled to cede Hong Kong to the British, and to pay
$23,000,000 indemnity. The warning was ample, and the imperial
officials dared offer no further hindrance to the admission of the “ for-
eign devil’s dirt.” Even this condition of affairs was unsatisfactory to
England, however, for the trade was still illicit, the goods contraband,
and she was placed, by the unreasonable laws of China, in the position
266 POPULAR SCIENCE MONTHLY
ofasmuggler. ‘The situation was not to be borne by any self-respecting
nation, and she determined to amend it. The seizure, by Chinese
officials, of the “ Arrow,” an opium schooner owned and manned by
natives, but illegally flying the British flag, afforded the desired pretext,
and in 1857 Great Britain again declared war. She was joined by the
French, and at the end of the campaign, in 1860, China was forced
to legalize the opium trade and pay an indemnity of $11,000,000.
In all the annals of the crimes of nations there is no parallel with
this one. In the seventy years since the British East India Company
made its first venture with a ship load of the drug, the use of it has
spread with appalling rapidity, and its victims are numbered by mil-
lions. It has made its deadly inroad upon every social class, bearing
destruction of mind and body. China has protested, pled and fought
in vain. Asa last resort the Emperor wrote a personal letter to Queen
Victoria, begging her benevolent aid in suppressing a trade so disastrous
te his people, and offering any concession in return. The letter was
unanswered, the appeal ignored.
So, we are known to the heathen yellow man as “ foreign devils,”
and the examination halls at Peking have been transformed into a
military school!
POE AS AN EVOLUTIONIST 267
POE AS AN EVOLUTIONIST
By FREDERIC DREW BOND
ee career of Edgar Allan Poe was a puzzle to his contemporaries
and has been a puzzle to students of his life ever since. Though
the mythology with which Griswold and others helped to embellish the
poet’s biography has been cleared away, the correct summing up of his
life seems still far off, and in seeking to find the principle of unity in
that strange personality we can but confess ourselves baffled and per-
plexed. Yet, in estimating Poe’s character, one portion of his work
may be pointed out on which too little attention has been bestowed.
Crude as Poe’s philosophic speculations sometimes were, yet foremost
among them he entertained, in its broad outlines, that idea of the
changes and development of the world which goes, nowadays, by the
name of the theory of evolution. To show in what way a recognition
of this fact would affect our estimate of him will not be attempted in
this paper. It is here proposed simply to exhibit Poe’s views on this
matter and to point out his place in the list of evolutionary thinkers.
The history of the idea of evolution has been studied by Professor
Sully? by H. F. Osborn? and by Edward Clodd,* but none of them
mentions Poe’s name in connection with the subject. To “ Eureka,”
the epitome of his thought on this matter, Poe himself attributed the
highest value, but his biographers have shown scarcely an inkling of
its importance in judging its author. Griswold in his “ Memoir of
Poe ’’* remarks on the resemblance of “ Eureka” to the once famous
anonymous work “The Vestiges of the Natural History of Creation,”
and Professor Irving Stringham, of the University of California, has a
critique on the work inserted in Woodberry’s “Life of Poe’® and
also in Woodberry and Stedman’s edition of Poe’s works. The only
article of value, however, on the subject that the present writer knows
of is an essay referred to by Mr. Ingram in his “ Life of Poe”? by
Wm. Hand Browne, entitled “ Poe’s Eureka and Some Recent Scien-
tific Speculations,” which appeared in The New Eclectic Magazine in
*“ Encyclopedia Britannica,” Art. “ Evolution,” Part II., Vol. VIII., p. 351.
2“ From the Greeks to Darwin.”
°* Pioneers of Evolution.”
‘Page xliii.
° Pages 286-301.
* Vol. IX., pp. 301-312.
‘Vol. IL., pp. 148, 296. Notice also the first paragraph in the introduction
to Vol. XVI. of the Viriginia edition of Poe’s works edited by Jas. A. Harrison.
268 POPULAR SCIENCE MONTHLY
1868. It appears to have produced no permanent impression. Poe
seems to have put certain of his ideas before scientific men during his
lifetime, but received no encouragement. Commenting on a letter
from the present writer on “ Eureka,” published in the Times Book
Review, of Philadelphia, Mr. Henry Newton Ivor of that city wrote,
under date August 21, 1901, to that periodical:
My father, who knew the poet during his connection with William Burton,
often told me that Poe had met with rebuffs from scientific men to whom he
undertook to explain his belief in the development of things.
To get to the starting point of Poe’s speculations we should per-
haps, go back to his youth, when we find him under the double influence
of the eighteenth-century French philosophers and of Coleridge and
Schlegel. But how far these two streams of thought colored Poe’s
philosophy is not easy to say. Most of his speculations seem deter-
mined by the facts of contemporary science and his own intellectual
activity. Not till his later years do we find any extensive expression
of his views. “The Colloquy of Monos and Una,’’® “ The Island of the
Fay,”*°, and “ Mesmeric Revelation ”** are some of the pieces in which
he appears as a speculative thinker. But not till 1847, two years
before his death, does he appear to have tried to form a definite system
for himself. Early that year his dearly-loved wife died and her death
seems to have impelled his mind towards attempting to unravel “the
riddle of the universe.” Throughout the fall and winter of that year
he elaborated his thoughts,’* and on February 3, 1848, an abstract of
his speculations was delivered as a lecture at the Society Library of
New York.** Shortly afterwards it was published by Putnam under
the title “ Eureka.”
Nothing better exhibits the intense belief of Poe at the time in
the truth of his theories than the account given by Mr. George Putnam
of their strange interview in regard to the publication of the work.
According to this account, a gentleman one day entered the publisher’s
office in a nervous and excited manner and requested his attention to a
matter of the greatest importance.
* The evidence for these statements is largely based on inferences from the
contents and citations of Poe’s works, taken in connection with their dates of
composition. A fragment of direct evidence in regard to the eighteenth-century
writers may be found in Ingram, Vol. I., p. 52. The great influence of Coleridge
on Poe is admitted on all hands. Cf. Woodberry’s “ Life,” pp. 91-93.
® Published ia 1841.
** Published in 1841.
* Published in 1844.
* See the interesting account, derived from Mrs. Clemm, in Didier’s “ Life.”
* For contemporary newspaper notices of tne lecture see Woodberry and
Stedman’s edition of Poe’s works, Vol. IX., pp. 312-315. ‘All [the papers]
praised it,” says Poe in a letter to a correspondent, “—as far as I have yet seen
—and all absurdly misrepresented it.” Ingram, Vol. II., p. 140. He excepts
partially an article in the “ Express,” Virginia edition, Vol. I., p. 277
POE AS AN EVOLUTIONIST 269
Seated at my desk, says Mr. Putnam, and looking at me a full minute
with his “ glittering eye,” he at length said, “I am Mr. Poe.” I was “all ear,”
of course, and sincerely interested. It was the author of “The Raven ” and of
“The Gold Bug.” “I hardly know,” said the poet, after a pause, “how to begin
what I have to say. It is a matter of profound importance.” After another
pause, the poet seeming to be in a tremor of excitement, he at length went on
to say that the publication he had to propose was of momentous interest. New-
ton’s discovery of gravitation was a mere incident compared with the discoveries
revealed in this book. It would at once command such unusual and intense
interest that the publisher might give up all other enterprises, and make this
one book the business of his lifetime. An edition of fifty thousand copies might
be sufficient to begin with, but it would be but a small beginning. No other
scientific event in the history of the world approached in importance the orig-
inal developments of the book. All this and more, not in irony or jest, but in
intense earnest—for he held me with his eye like the Ancient Mariner. I was
really impressed, but not overcome. Promising a decision on Monday (it was
late Saturday), the poet had to rest so long in uncertainty, upon the extent of
the edition, partly reconciled by a small loan meanwhile. We did venture, not
upon fifty thousand, but five hundred.“
This account, which was written twenty years after the events it
relates, seems more or less colored; it exhibits, however, sufficiently
well, the value attached by Poe to his work.
At the opening of “ Eureka” Poe thus states his purpose:
I design to speak of the Physical, Metaphysical and Mathematical—of the
material and spiritual universe,—of its Essence, its Origin, its Creation, its
Present Condition and its Destiny. I shall be so rash, moreover, as to challenge
the conclusions, and thus, in effect, to question the sagacity, of many of the
greatest and most justly reverenced of men.”
Following this, comes a satire on the exclusive use of either the
deductive or inductive methods in the search for truth, purporting to
be written by a student of our logic, a thousand years hence.** The
skit is clever and is not wanting in some telling hits, but it is out of
place and has probably caused many a reader to put down the whole
essay. Then after some acute criticisms of a few metaphysical terms,
such as “ Infinity” and a “ First Cause,”!* Poe proceeds to his main
theme. “In the beginning,’ from “his spirit or from nihility,” “ by
dint of his volition,” God created a single material particle in a condi-
tion of the utmost possible unity and simplicity.*® “The assumption
of absolute unity in the primordial particle includes that of infinite
divisibility. Let us conceive the particle, then, to be only not totally
exhausted by diffusion into space. From the one particle, as a center,
4 Putnam’s Magazine, October, 1869. Quoted by Ingram, Vol. II., p. 145.
* Both Ingram (Vol. II., p. 144) and Woodberry (p. 285) are of this
opinion.
16“ Works,’ Vol. IX., p. 5.
Works, edited by Steadman and Woodberry, “ Eureka,” Vol. IX., pp. 7-18.
This edition of Poe’s works is referred to throughout the references in the
present article.
* Ibid., pp. : 0-24.
” Pages 26, 27.
270 POPULAR SCIENCE MONTHLY
let us suppose to be radiated spherically—in all directions—to im-
measurable but still definite distances in the previously vacant space—a
certain inexpressibly great yet limited number of unimaginably yet
not infinitely minute atoms.”*° Differences of size and form taken
conjointly cause differences of kind among these atoms.**
The natural tendency of these subdivisions of matter is towards
the unity whence they sprang. On the fulfilment of the radiation, the
diffusive energy being withdrawn, to avert this tendency, and the con-
sequent absolute coalition of the atoms, repulsion makes its appear-
ance.** These two principles, attraction and repulsion, being the “ sole
properties through which we perceive the universe,” “we are fully
justified in assuming that matter exists only as attraction and repul-
sion—that attraction and repulsion are matter, there being no con-
ceivable case in which we may not employ the term “ Matter,” and the
terms “ Attraction” and “ Repulsion,” taken together, as equivalent, and
therefore convertible, expressions in logic.”** The nature of repulsion
Poe refuses to attempt to determine, but he states it to be identical with
electricity. To it we should probably refer the various physical ap-
pearances of lght, heat and magnetism, and still more so the phe-
nomena of vitality, consciousness and thought. Attraction is the ma-
terial, repulsion the spiritual principle of the universe.2* As Poe
declares that both together constitute matter, he thus states a sort of
crude monism.
Since the diffused matter was radiated in a generally equable man-
ner, we may conceive it as arranged in concentric spherical strata about
its origin. This at once leads us to the explanation of the mode in
which attraction acts—the reason, that is, why gravitation varies in-
versely as the square of the distance between the attracting masses.
For, since the surfaces of spheres vary as the square of their radii, the
number of atoms in each concentric spherical stratum is proportional to
the square of that stratum’s distance from the center. But as the
number of atoms in any stratum is the measure of the force that
emitted that stratum, that force itself is directly proportional to the
square of its stratum’s distance from the center. Now, on the ful-
filment of the diffusion, the modus operandi of the attractive force
is, of course, the converse of that of the diffusive; in other words, each
particle of matter seeks its original condition of unity by attracting
its fellow-atoms with a force inversely proportional to the square of
the distances between them.*®
7 <* Kureka,” p. 28.
1'Pages 29, 30.
= Pages 31-33.
* “ Eureka,” pp. 34, 35.
* Page 34.
»* Eureka,” pp. 35-66. In a MS. note, referring to the diffusion, Poe says:
“Here describe the process as one instantaneous flash.” (Page 52.)
POE AS AN EVOLUTIONIST 271
Matter being thus distributed, attraction causes it to aggregate in
nebulous patches, which proceed to undergo a development similar to
that described in Laplace’s “ Nebular Hypothesis.” Our solar system,
beginning in the form of a nebula, assumed a spherical shape and,
as its constituent atoms sought its center, began to revolve. As the
velocity of the revolution increased, the “centrifugal force” got the
better of the centripetal, and a ring of matter was detached from the
nebula’s equator; this ring finally condensed into the planet Neptune.
Shrinking in size, the nebula, in lke manner gave birth to the other
planets, including the earth, and finally arrived at the size in which
we now know it as the sun. Similarly, during their condensation,
several of the planets threw off satellites.?®
In the following paragraphs Poe sums up the cosmic development
and gives an account of the changes on the earth’s surface:
In speaking, not long ago, of the repulsive or electrical influence, I
remarked that “the important phenomena of vitality, consciousness and
thought, whether we observe them generally or in detail, seem to proceed at
least in the ratio of the heterogeneous.” I mentioned, too, that I would recur
to the suggestion; and this is the proper point at which to do so. Looking at
the matter, first, in detail, we perceive that not merely the manifestation of
vitality, but its importance, consequences, and elevation of character, keep pace
very closely with the heterogeneity or complexity of the animal structure.
Looking at the question, now, in its generality, and referring to the first move-
ments of the atoms towards mass-constitution, we find that heterogeneousness,
brought about directly through condensation is proportional with it forever.
We thus reach the proposition that the importance of the development of the
terrestrial vitality proceeds equably with the terrestrial condensation.
Now, this is in accordance with what we know of the succession of animals
on the Earth. As it has proceeded in its condensation, superior and still su-
perior races have appeared. Is it impossible that the successive geological
revolutions which have attended, at least, if not immediately caused, these suc-
cessive elevations of vitallic character—is it impossible that these revolutions
have themselves been produced by the successive planetary discharges from the
sun; in other words, by the successive variations in the solar influence on the
Earth? Were this idea tenable, we should not be unwarranted in the fancy
that the discharge of yet a new planet, interior to Mercury, may give rise to a
new modification of the terrestrial surface—a modification from which may
spring a race both materially and spiritually superior to man.”
The statement of Poe in this passage, that “ heterogeneousness,
brought about directly through condensation, is proportional with it
forever,’ appears to contain the germ of Herbert Spencer’s developed
formula: “ Evolution is a change from an indefinite, incoherent homo-
geneity to a definite, coherent heterogeneity through continuous dif-
ferentiations and integrations.”28 Noteworthy, also, is Poe’s statement
of the correlation between mental development and physical organiza-
tion.
* Pages 66 et seq.
7“ Fureka,” pp. 80, 81.
* This is the form in the 1862 edition of “ First Principles.” In the later
editions the formula reads: “ Evolution is an integration of matter and concom-
272 POPULAR SCIENCE MONTHLY
The most interesting point about the whole passage, however, is
probably that connected with Poe’s ideas on the origin of animal
organisms. Is he here stating the true theory of the descent of each
from lower forms? Or, is his view a revival of that held by several
Greek philosophers and in modern times by Duret and Oken, of the
direct production of species by natural causes??® In Poe’s tale “Some
Words with a Mummy,” published in 1845, the resuscitated Egyptian
replies to a query concerning the creation, thus:
During my time I never knew any one to entertain so singular a fancy as
that the universe (or this world, if you will have it so) ever had a beginning at
all. I remember once, and once only, hearing something remotely hinted, by a
man of many speculations, concerning the origin of the human race, and by this
individual the very word Adam (or Red Earth), which you make use of, was
employed. He employed it, however, in a generical sense, with reference to the
spontaneous germination from rank soil (just as a thousand of the lower genera
of creatures are germinated)—the spontaneous germination, I say, of five vast
hordes of men, simultaneously upspringing in five distinct and nearly equal
divisions of the globe.”
How far this is jest and how far earnest is hard to say.
Of the mental development of man, Poe does not speak in
“ Bureka.” From passages elsewhere (chiefly in “ Marginalia”) he
seeems to have thought humanity had progressed along religious, sci-
entific and esthetic lines, but pessimistic remarks of an opposite char-
acter are not wanting in his writings.
The only passage elsewhere which alludes to the subject is con-
tained in a letter, written shortly after the publication of “ Eureka ”
to the editor of the “ Literary World” in answer to some strictures
a correspondent had made on the work. It reads as follows:
“The third misrepresentation lies in a foot-note, where the critic
says: ‘ Further than this, Mr. Poe’s claim that he can account for the
existence of all organic beings—man included—merely from those
principles on which the origin and present appearance of suns and
itant dissipation of emotion: during which the matter passes from an indefinite,
incoherent homogeneity to a definite, coherent heterogeneity; and during which
the retained motion undergoes a parallel transformation.” “ First Principles,”
p. 334. There seems to be considerable correspondence between Poe’s “ condensa-
tion” and Spencer’s “ integration.”
* The following extract from Oken deserves to be cited as showing how, in
any event, Poe’s views were as reasonable as those propounded by one regarded
as a forerunner of Darwin: “ Man also is the offspring of some warm and gentle
seashore, and probably rose in India, where the first peaks appeared above the
waters. A certain mingling of water, of blood warmth, and of atmosphere, must
have conjoined for his production, and this may have happened only once and
at one spot.” Quoted by H. F. Osborn, in his work “ From the Greeks to Dar-
win,’ p. 127. Among the Greeks who propounded the hypothesis of the direct
natural production of organisms from the elements were Thales, Anaxagoras
and Empedocles.
eey Works,” Vol. 1157p. SOL:
POE AS AN EVOLUTIONIST 273
worlds are explained, must be set down as mere bald assertion, with-
out a particle of evidence. In other words, we should term it arrant
fudge.’ The perversion at this point is involved in a wilful misap-
plication of the word ‘ principles.’ I say ‘ wilful,’ because at page 63
I am particularly careful to distinguish between the principles proper,
Attraction and Repulsion, and those merely resultant subprinciples
which control the universe in detail. To these subprinciples, swayed
by the immediate spiritual influence of Deity, I leave, without
examination, all that which the student of theology so roundly asserts
T account for on the principles which account for the constitution of
suns, etc.”*! This passage, it is plain, is as indecisive as the text of
the essay. On the other hand, one with Poe’s wide knowledge can
hardly, it would seem, have lacked knowledge of Lamarck’s theories,
nor was he ignorant of the then recent work, “ The Vestiges,” though
he had not then actually read it (in a letter to Geo. E. Isbell, he in-
quires how far “ Eureka” is at one with the “ Vestiges’*?). But
Poe’s interest does not seem to have centered on what would be now
termed the biological side of the matter.
Having described the development of the universe, Poe, in passages
whose sweep and power remind one of Tennyson’s “ Vastness,” pro-
ceeds to set before us its present condition and immensity.** Then,
finally, he pictures the inevitable dissolution of it all, when stars and
planets will at length lapse into the substance of one central orb. Here
attraction will finally predominate over repulsion, complete unity obtain,
and matter without attraction and repulsion will again sink “ into that
Material Nihility from which alone we can conceive it to have been
evoked, to have been created, by the Volition of God.’’** The out-
come of the whole process Poe sums up in the following words, in
which he restates the old doctrine of the universe as being in a state
of perpetual flux: ;
On the universal agglomeration and dissolution, we can readily conceive
that a new and perhaps totally different series of conditions may ensue; another
creation and radiation, returning into itself, another action and reaction of the
Divine Will. Guiding our imagination by that omniprevalent law of laws, the
law of periodicity, are we not, indeed, more than justified in entertaining a
belief—let us say, rather, in indulging a hope—that the processes we have here
ventured to contemplate will be renewed forever and forever and forever; a
novel universe swelling into existence, and then subsiding into nothingness, at
every throb of the Heart Divine? *
For, in this everlasting metamorphosis, every “ creature ”—to use
Poe’s term—both those we call living, and those to which we deny the
3 Griswold, p. xliv.
2 Virginia edition, Vol. I., pp. 277, 278.
<< Hureka,” pp. 81 et seq.
% “ Hureka,” pp. 115-133.
“ Hureka,” pp. 133, 134.
VoL. LXx1.—18.
274 POPULAR SCIENCE MONTHLY
name, because we do not perceive the vital operations, are all, in a
measure, possessed of life and consciousness. ‘The cosmos is, as it were,
composed of cycles of minds within cycles, the less within the greater,
and all within the Divine Spirit, unto which all things, on their dis-
solution, return.*®
From the preceding sketch, it will be evident that, in its important
features, “ Eureka” is a prevision of the modern doctrine of evolu-
tion. In the statements that the universe is in a perpetual flux, that it
is now evolving and will in the future dissolve, that it has developed
from a condition of homogeneity, and that our own system sprang from
a nebula, Poe is in accord with the Spencerian philosophy and very
probably with the actual facts; while in the assertions that the earth
has, during successive geological ages, produced a higher and higher
organic life characterized by: an ascending development of mind, hand
in hand with an increasing complexity of the physical organization, he
is stating what are now known to be simple scientific facts. Errone-
ous, of course, the details of his conceptions very frequently are ;*7 but
this is common to him with the pioneers of every great idea. Only in
the course of time does the germ of truth they discover attain its full
growth and reveal its true character. To criticize “ Eureka” from a
contemporary standpoint would be as beside the mark as to treat the
“ Naturphilosophie ” of Schelling or of Hegel in the same way.** ° It
was a remark of John P. Kennedy, Poe’s old friend, that the latter
“wrote like an old Greek philosopher” and any one who reads the
fragments of the Greek thinkers before Aristotle can easily verify for
himself the truth and aptness of the statement. The merits of Poe,
in common, more or less, with the other pre-Spencerian evolutionists le
in how far and how truly his genius enabled him to divine the mode
of development of the universe.
Owing to the causes pointed out at the beginning of this paper, it
is improbable that “ Eureka” had any influence in preparing the way
for the reception of evolutionary ideas, a little later; at the most such
influence must have been of the slightest, for though this work was early
translated into foreign languages, the failure to find fitting recognition
of its true character, and the general obscurity in which it has lain,
seem to preclude any such likelihood. Its interest lies in the light it
throws on its author and in the honorable place to which it assigns
him in that long line of thinkers from Thales to Darwin.
* Tbid., pp. 1384 ad fin. lib.
“Tt may be added that ‘Eureka’ contains some implicit contradictions
also, due apparently, to an advance in the author’s thought.
* Nor is it any exaggeration to say that Spencer’s “ First Principles” is
far from immune from heavy critical attacks (as witness J. Ward’s “ Naturalism
and Agnosticism”) and that it is literally true that the scientific eminence of
Spencer’s work over “ Eureka” lies more in its form than in its contents.
MARS. AS SEEN IN LOWELL REFRACTOR 275
MARS AS SEEN IN THE LOWELL REFRACTOR.
By G. R. AGASSIZ
Aes writer has lately enjoyed the great privilege, as Professor
Lowell’s guest, of observing Mars through nearly one presenta-
tion,! in the great 24-inch refractor.
Few people have had the opportunity of observing Mars at Flag-
staff, and there is much scepticism afloat concerning the character of the
markings of the planet, more especially as regards the double canals.
So the writer proposes to give a short account of what can be seen,
in the Lowell refractor, in one presentation, by any one of good eye-
sight, who is somewhat familar with the use of a telescope. The writer
also wishes to give a description of the methods employed in observing,
and the reasons for using them. He will also give a few reasons,
which appear to him conclusive, to show that the double canals are
actual phenomena, and not the result of diffractive effects in the
telescope.
Few astronomers appear to realize how exceptionally excellent the
seeing is in the clear dry air of Flagstaff, on a quiet night. It is so
good, in fact, that a comparative novice appears to be able to see the
planet more distinctly in one presentation there than Schiaparelli, at
Milan, ever did.
During the time of the writer’s observations, the diameter of Mars
increased from 12” to 18”. The eyepiece used in observing was
usually a 25 mm. orthoscopic, Zeiss, which gives a remarkably large
flat field. This gives, on the 24-inch refractor, a power of 393. So
that the apparent size of the disk of Mars was about 2.6 times the
diameter of the Moon, as seen by the naked eye, at the beginning of
the writer’s observations, and 3.9 times at the end.? This is amply
large enough to distinguish a vast amount of detail, when the seeing
is sufficiently good to disclose it. Sometimes, when the seeing was
unusually good, an eyepiece of 20 mm. would be tried, giving a power
of about 490; but this was rarely used to advantage. When the seeing
required a less power than the 25 mm., the planet could not be ob-
served satisfactorily.
A circular disk was fitted over the eyepiece, containing an assort-
ment of orange-yellow, and neutral-tinted glasses; any one of these
could, at will, be revolved in front of the eyepiece. These glasses
serve in a marked degree to bring out the contrasts on the planet.
-1¥From April 28toJune2,1907.—™S
? With this power Mars appears about 5.2 times the diameter of the moon,
at opposition in 1907.
276 POPULAR SCIENCE MONTHLY
How little effect chromatic aberration plays in the observation of
planetary detail may be judged from the fact that all the observers
at Flagstaff preferred a neutral-tinted glass to a monochromatic one.
The action of a shade in bringing out detail appears to be some-
what as follows: In viewing a point of light through a telescope of
a given aperture, the first minimum of the curve of diffraction, or the
middle of the first dark ring, will always be at a given distance from the
point of light, but the spurious disk will fade away, out of sight, be-
fore it reaches the minimum; and the fainter the point of light, the
smaller the spurious disk. As the point of lght approaches invisi-
bility in the telescope, the spurious disk approaches zero. Now sup-
pose we consider the light bordering a dark line on Mars as made up of
numberless points of light. These points of light are excessively faint,
compared with points of light on the sun, or with the light from a
star. Their spurious disks are therefore extremely small, so that very
little light spills over on to the dark markings; and that is the reason
we are able to make out such fine detail on the planet. Now, although
small, the spurious disks of these numberless points do diffuse some
light on the fine dark markings. By using a shade, we decrease the
light from these points, and thus reduce the size of their spurious
disks. Therefore less light falls on the dark markings, and the sharp-
ness of their edges is increased.
Jt is further found at Flagstaff that diaphragming the aperture in-
creases the seeing. Langley, in his article on soaring birds, has shown
that there are constant small changes of velocity “ within the wind.”
Now these pulsations must cause waves of rarefaction and condensation,
which may be represented as an irregular wave curve, sweeping past
the objective. This will cause the planet to swing in the field of the
telescope, as the rays are refracted by a layer of denser or rarer air.
Now it is evident that the smaller the aperture of the objective, the
less variation of the curve will there be in front of the objective at
any given instant, or the more homogeneous the air in the path of the
rays entering the eye at any given moment. So that, though a smaller
objective will not diminish the swinging of the planet in the field, it
will diminish the blurring within the planet, and help bring out the
detail. Thus, the smaller the objective, the better the seeing, other
things being equal. In practise the best results were obtained with
a 12-inch diaphragm, as below this the loss of light and of effects due
to increasing the size of the spurious disk began to be more powerful
factors than the advantages gained from better seeing.
So importantly essential are the shaded glass, and the diminution
of the aperture to the study of Martian detail at Flagstaff, that
without these aids it would be excessively difficult to make out any
of the fine detail on the planet.
It is a mistake to suppose that an observer who has a very keen
sight for a small star will necessarily be a good observer of planetary
MARS AS SHEN IN LOWELL REFRACTOR 270
detail. Indeed it often seems to be the reverse; as if an eye, sensitive
to light, were not as acute for form. Now it is well known that no
two objects can be separated by the human eye that do not fall on
more than one cone in the fovea, or central pit of the retina. So may
it not be that an eye, very sensitive to light, has unusually large cones
in the fovea, while one acute for form has small ones?
There seems to be a great reluctance to accept the finer markings
on Mars as established facts, and their objective reality has been
questioned by all kinds of doubts and theories by all sorts of men. It
might be well if some people, who explain away the markings on the
supposition that they are optical illusions, would take the trouble to
follow up their theories, see where they lead to, and work out what the
appearance of the markings would be if due to the causes they suggest.
A Professor Douglass, of Arizona, has lately suggested that the canals
are nothing but the black rays that can be seen radiating from a
black spot, on a hght ground, when looked at with a small screen
placed in front of the pupil of the eye, so that the light enters only
around the edges. According to Professor Douglass, the black oases
are the only real things in the canal system, while the canals themselves
have no tangible existence, and are nothing more than these black
rays issuing from the dark spots.
In the first place, no eyepieces, constructed on any such principles
as Professor Douglass uses to see these rays, are known at Flagstaff.
Furthermore, the oases are more difficult objects to see than the
canals. The latter are often visible when the former are not. It
would seem that even Professor Douglass should find it hard to admit
that, at such times, the canals are visible radiations from invisible
spots.
But let us see what the canals would look like if actually due to
this cause. These radiations are due to irregularities in the crystal-
line lens, and are constant for an adult, but vary with each individual.
So that any one, looking at the planet, would see an exactly similar set
of radiations issuing from each oasis. The planet would be covered
with a quantity of black spots, all with similar radiations, and all
absolutely independent of each other. For no two radiations from
different spots would ever, except by the rarest chance, run into each
other to form a straight unbroken line, connecting the two spots. The
radiations would also be entirely different for each individual. As one
of the most striking features of Martian detail is the manner in which
the canals connect and interlace the oases, further comment seems un-
necessary.
It has also been suggested that the so-called canals may not be lines at
all, but merely a disconnected string of broken markings, a sort of
irregular dotted line.
A series of observations at Flagstaff, conducted by several individ-
uals, has shown that the eye is extremely sensitive toa break in a line.
278 POPULAR SCIENCE MONTHLY
A series of lines, .8 mm. wide, was viewed from a distance of 17 feet.
Each line was made up of 10 mm. sections, separated by small inter-
vals that were the same between the sections of each line, but differed
for every line. It was found that a line, whose sections were .5 mm.
apart, was visible as a discontinuous line. A line with the sections
.25 mm. apart appeared continuous.
With the power usually used at Flagstaff, the first figures would
correspond on the planet at opposition to a line five and a half miles
wide® visible as a discontinuous line, if the sections were eight miles
apart. That the Martian markings should be composed of a series of
dotted lines, separated by intervals never greater than eight miles,
would seem far more wonderful than the canals themselves.
There is a wide-spread feeling that the double canals are due to
diffractive effects in the telescope. The writer wishes to state, at
some length, why it appears to him that.this can not be the case.
The writer has made many experiments, with various telescopes, on
dark lines on a light field viewed by reflected light. In no case has he
been able to detect diffractive effects that in any way resemble the double
canals of Mars, as seen in the Lowell refractor, while, on the other
hand, parallel lines, close together, bear a striking similarity to the
double canals.
In dealing with this subject, it is surprising to find how litle is
really known of diffractive effects caused by a dark line on a light
field. This is the gist of the whole matter, and is a very different
thing from the well-known effects of diffraction obtained when viewing
a point, or a line, of light on a dark field.
In viewing a luminous point on a dark field through a given tele-
scope the distance of the rings of diffraction from the center of the
: Q : cr
spurious disk may be easily found from the formula ¢== —, where
=
¢ is the angle measured from the objective to the focus; ¢-is a con-
stant for each maximum or minimum; A is a wave-length, and r is
the radius of the objective. Now the second maximum, or the radius
of the first bright ring, measures about 0”.31 in the Lowell refractor.
If we extend this point to form a line, the ring will be transformed into
* Various observers have experimented at Flagstaff at different times with
wires stretched against the sky, viewed at ever increasing distances. The dis-
tances at which a wire was distinctly visible varied with different individuals,
and corresponded to an angular width for the wire varying from .69” to .93”.
Looking at Mars at opposition, with a power of 400, these angles would corre-
spond on Mars to widths of from 0.31 to 0.42. miles. Making all possible allow-
ance for loss of light, ete., in the telescope, it seems probable that, under favor-
able circumstances, a line less than a mile wide could be detected on the planet.
By comparison with the finest micrometer threads, some of the single canals
are estimated to be as much as 35 miles wide. The width of the various double
canals, which remains constant for each canal, is estimated to range from 2°
to 5° on the planet. This is found, by various terrestrial experiments at Flag-
staff, to be far wider than lines that can be easily separated by the eye.
MARS AS SHEEN IN LOWELL REFRACTOR 279
two lines, one on each side of the source of light, at a distance of 0”.31
from it, and, since the second maximum has but .017 the intensity of
the first, the outlying lines will be but .017 of the brilliancy of the
central one.
On Mars we have to consider dark lines on a light field, and litle
seems to be known of their diffractive effects. There is a disposition
to assume that we are here dealing with an inverted diffraction curve.
Personally, it seems to the writer that there is no similarity between a
bright line, whose light waves produce diffractive effects, and a dark line
that emits no light waves. But let us assume that, somehow, the dark
line on a light field will produce the same diffractive effects as
a light line on a dark field. Then, were the double canals due
to this diffraction, they would appear as follows on the planet,
when seen in the Lowell refractor. Hach and every canal would ap-
pear triple, the outer lines would always be separated by 0”.31 from
their primary, and be .017 less distinguishable than it. Furthermore,
there would be a dark ring around every oasis. No triple canal has
ever been observed on Mars, nor has any ring ever been seen around an
oasis.
The distance from the first minimum to the second maximum on
the diffraction curve measures about ”.08 in the Lowell refractor. Now
if the double canals were dark bands of a width of ”.16, then the
points of light on the planet, at such a distance from the band that
their first minima fell on its edge, would cast the light of their second
maxima in the center of these bands, and these maxima, from the
points on each side of any band, would overlap.
It is conceivable that such an effect might look something like a
double canal, were it not for the fact that the diffracted light from
all the other neighboring points of hght would swamp and drown any
such illusion. Supposing, however, that the double canals were really
such dark bands, illuminated in their centers by the second maxima
of the fringing light, then the double canals would always appear very
nearly 0”.16 apart, which would correspond to about 1°.5 on the planet,
when its diameter was 12”. But as the planet approached, since the
distances apart of the maxima and minima in the focus of the teles-
cope remain constant, the widths of the bands would no longer fit them,
and the effect would be lost. Thus it follows that these bands of
uniform width could never appear double, except at one given distance
of the planet.
There are certain rules that the double canals should observe if
they were due to diffraction, but they follow none of these. They
should (since the size of the rings of diffraction remain constant
through a given aperture) appear nearer together, in degrees on the
planet, as Mars approaches; instead of which they remain the same
size. They should (as diffractive effects vary in size inversely as the
radius of the objeciive), as the objective is diaphragmed down, appear
280 POPULAR SCIENCE MONTHLY
farther apart; but in fact diaphragming has no effect on their width.
Not only should all the canals appear double, but they should all seem
the same width. Less than one eighth of the canals have ever been
seen to be double; and the double canals vary from each other in
width, ranging from 2° to 5°.
In drawing A: 1 (the Euphrates) appears much wider than 2 (the
Astaboras), while 3 (the Protonilus) is narrower than either; 4 (the
Vexillum), which is a double canal, the writer was unable to resolve,
but he could never have classed it with 5 (the Astrusapes). This last
appeared as a sharp dark pencil mark, as, indeed, do all the single
canals, when the seeing is really good. The double canals then come
out like the lines of a railway track seen from a half-distant hill.
If the double canals are really due to diffractive effects, how is it
that only those are able to distinguish them whose eyesight is suffi-
ciently good to obtain an exceptional view of the planet? Should
not any one who can see the single canals be able to see them double?
MARS AS SHEN IN LOWELL REFRACTOR 281
However, these remarks are probably quite useless. No one of good
eyesight, who has seen Mars at Flagstaff, on a night when the seeing
s really good, needs any arguments to convince him that what he sees
is real. And no one who has made up his mind beforehand, without
seeing them, that the double canals are due to diffraction, is likely
to be influenced by these words.
It would seem almost unnecessary to state that no one for a moment
supposes that the lines that one sees are actual streams of water.
They are thought to be broad stretches of vegetation, dependent on
channels of water running through them. So would the valley of the
Nile appear to a distant observer, who would distinguish the dark
fertile valley against the sands of the desert, long before he could
see the river itself.
During the writer’s visit to Flagstaff, he saw 77 canals, 20 oases,
and 11 double canals,* all of which, with one exception, could he
readily identified on some one of Lowell’s maps, though it was some-
times necessary to consult a map of an earlier date than the opposition
cf 1905, to find them. Each of the drawings is the accumulated result
of some 15 or 20 minutes at the telescope, so that no one of them
represents everything seen in a single night.
It must not be imagined that any drawing represents what the
observer sees the moment he looks through the telescope. Instants
of exceptional seeing flash out, here and there, at different spots on the
planet. It is not till the same phenomena repeat themselves in the
same way, in the same place, a great number of times, that the ob-
server learns to trust these impressions. One has to keep one’s mind
constantly at the highest pitch to catch and retain what the eye sees.
It is like looking at a Swiss landscape from a high Alp, with the
summer clouds sweeping about one. Now the mist rolls away, reveal-
ing a bit of the valley, and shuts in again in a moment; while in some
other spot the clouds break away, and disclose a jagged summit, or a
portion of a shining glacier.
Any one who has been fortunate enough to have had a really good
view of the lineal markings on Mars is bound to be much impressed
by their artificial appearance. So that, unless he has an inborn
prejudice against the idea, any theory that accounts for the canals as
the effort of intelligent beings to accomplish some definite object will
not appear fanciful.
Lowell’s theory that we have here evidence that the inhabitants of
Tr
*There are known at present 436 canals, of which 51 are double, and 186
oases. These are never all seen at one opposition, not only because of the dif-
ferent tilts of the planet, but also because neighboring canals alternate in appear-
ing and disappearing at different oppositions. Accepting Lowell’s theory that
the canals are areas of vegetation bordering artificial channels for irrigation,
this could be accounted for by the fact that when the canals do not appear, the
land is lying fallow.
282 POPULAR SCIENCE MONTHLY
Mars are struggling to preserve their existence by a planet-wide sys-
tem of irrigation seems to be gaining ground; although he has had
to contend against something of the same opposition that confronted
Copernicus, Bruno and Galileo, and for very much the same reasons.
The human mind resents anything that tends to belittle it, or its sur-
roundings, and will not tolerate the idea of a rival.
It would seem, in all fairness, that a theory that fits all the ob-
served facts as beautifully as Lowell’s does deserves something better
than disdainful disrespect, even from the most conservative. It is
certainly far better than any theories and objections that do not meet
the facts at all. As yet no other theory has been suggested that in
any way accounts for the Martian markings. Until one is evolved
that accounts for the facts better, Lowell’s theory should be accepted,
by the most sceptical, as the only working hypothesis yet devised.
A very noteworthy achievement in the recent study of Mars is the
series of remarkable photographs of the planet, taken by Mr. Lamp-
land at Flagstaff. Already he has succeeded in photographing many
of the canals, and at the date of this writing’ he has just photographed
the Gihon double.
It seems as if, with the methods at present available, we probably
shall not greatly increase our present knowledge of the planet. Even
photography will probably be useful chiefly as a means of convincing
the sceptical. But who can tell what the future may have in store?
What astronomer of the early nineteenth century would have dreamed
ef the possibility of detecting. the composition of the stars, or deter-
mining their velocity in the line of sight? Some day a new method
may increase our knowledge of Mars, as much as the discovery of the
spectroscope opened up the heavens.
To most people “the proper study of mankind is man.” But to
those of us to whom the fact that we believe we have detected evi-
dence of intelligent life in another planet seems of absorbing interest,
Mars appears by far the most fascinating object in the heavens.
S July, 1907.
THE PROGRESS OF
THE PROGRESS
HERMANN VON HELMHOLTZ
THE nineteenth century is distin-
guished for the advance of science and |
the spread of democracy, and science
is dominant as its applications have
supplied the economic conditions that
make democracy possible—general edu-
cation, relative leisure and compara-
tively broad interests for a majority
of the people. We may consequently
regard it as probable that the greatest
men of the century were its scientific |
leaders, and that they will ultimately
be held in higher honor than the au-
thors or artists, than the statesmen or
soldiers. The doctrines of the con-
servation of energy and of organic evo-
lution are the two greatest generaliza-
tions of modern science. Each has
had its historical development both
before and after, but is primarily asso-
ciated with the one great name. We
may believe that in the future every-
thing connected with the life and work
of Helmholtz or of Darwin will be of
the deepest interest, and it is fortu-
nate that the biographies that have
been published are so adequate. “The
Life and Letters of Charles Darwin,”
by his son, Dr. Francis Darwin, with
the supplementary volumes of letters
give a sympathetic and vital reflection
of the noble and simple man and of his
performance. The biography of Her-
mann von Helmholtz by Professor Leo
Kénigsberger makes a more mechan-
ical impression, but it gives a correct
and useful account of the vast range
of work accomplished by Helmholtz,
and those facts of his private life that
can be related objectively.
This biography published in 1902
and 1903 has been abridged and trans-
lated into English by Lady Welby,
with a preface by Lord Kelvin, and is.
, berg
SCIENCE 283
OF SCIENCE
now published by the Clarendon Press
of Oxford. Of the eight portrait
plates in the original, three are repro-
duced in the translation. In the two
portraits by Lenbach the features are
idealized. The bust by
Hildebrand, made in 1891, is not given
in the English volume, but more truly
represents Helmholtz as he appeared
during his visit to America toward the
end of his life.
The paper on the conservation of
energy, printed separately in 1847,
after having been rejected by the lead-
ing German physical journal, may have
been technically anticipated by Mayer
and Joule, but it is the cornerstone of
modern physical science. When this
paper was published, Helmholtz was
an army surgeon at Potsdam, his
father, who was a teacher of classical
languages, not being able to afford the
cost of a university education.
Thanks to von Humboldt, he was re-
leased from the army to _ become
teacher of anatomy in the Berlin
Academy of Arts. During his whole
life, Helmholtz was deeply interested
in the plastic arts, in music and in
literature, thus demonstrating that
there is no incompatibility between
science and the fine arts. Of equal
significance is his constant concern
with philosophy.
Helmholtz became professor of physi-
ology at Kénigsberg in 1849; he re-
moved to Bonn in 1855 and to Heidel-
in 1858, remaining there for
thirteen years. During this period
he measured the velocity of the nervous
impulse and prepared his great works
on vision and on hearing, of which the
ophthalmoscope was a_ by-product.
Helmholtz’s primary interests were al-
ways in mathematical physies, and he
somewhat
284 POPULAE
SCIENCE
MONTHLY
HERMANN HELMHOLTZ AT THE AGE OF TWENTY-SEVEN.
in 1848, a year after the publication of the paper on the conservation of energy.
the
he
consequently .welcomed a call to
ehair of physics in Berlin. Later
organized and became the first presi-
of the
tional laboratory of physics and tech-
dent * Reichsanstalt,’ a na-
nology. During these years, he made
his great contributions to thermody-
namics and electromagnetism, and with
his pupils, Hertz, Lenard and others,
gave to mathematical physics its
dominant position among the sciences.
All the while Helmholtz gave con-
From a daguerreotype taken
tinually public addresses and popular
lectures, and was engaged in commis-
of all The
quantity of his work are as remark-
sions kinds. range and
able as its epoch-making character.
LINNEAN CELEBRATIONS
SWEDEN
Ar the beginning of the eighteenth
IN
century the military power of Sweden,
so long a leading foree in European
polities, had been erushed, the people
THE PROGRESS OF
HERMANN VON HELMHOLTZ AT THE AGE OF SEVENTY.
Adolf Hildebrand in 1891.
had sunk into apathy broken only by
intrigue and disorder, the nation was
oi no account. Then the son of a poor
country priest, endowed merely with
the divine love of nature and of knowl-
edge, fought his way through school
and university, and by constant obser-
vation and diligent study of subjects
to which men of
the world then paid much attention,
neither scholars nor
won a place among the great ones of
SCIENCH 285
A bust made by
the earth.
youthful
thither science
from all Europe, and then sent them
Installed at Upsala, the
first attracted
men of
Linneus
students and
through the whole world as gleaners
of further knowledge and ambassadors
of his country’s new-found fame. Never
since has Sweden relapsed from the
high place thus won for her among
nations in the wider world of scientific
thought.
286
POPULAR SCIENCE MONTHLY
MEDAL IN HONOR OF THE BICENTENARY OF THE BIRTH OF LINNZUS, STRUCK BY THE
SWEDISH ACADEMY OF SCIENCE. The first copy was awarded Sir Joseph Hooker, who cele-
brated his ninetieth birthday on June 30.
At the beginning of the twentieth
century we have seen Sweden appar-
ently losing prestige by the secession
of Norway from the union; and, while
we have admired the statesmanship
that could accommodate itself with
dignity to such a severance without
the horrors of a brothers’ war, we have
seen a people mistrustful of its rulers,
fearful of its neighbors, and bitter in
its own heart. But in this celebra-
tion of the most eminent among her
sons we may perceive at least one sign
that Sweden is recognizing her true
greatness. If she did not fully grasp
it before, the homage of the world will
have forced on her the truth of the
Linnean motto—Famam extendere fac-
tis. Deeds, no longer of arms, but of
honest labor in the ever-widening field
of science. Sweden has received a
blow; but the blow has aroused her.
She stands up; she throws off the gar-
ment of slumber; she takes in her hand
with renewed vigor the weapons of
the future. Around the shrine of
Linneus all classes gathered together,
and during those three bright days in
a year of rain, as one paced the streets
of Upsala and of Stockholm, beyond
the celebration of the past, behind the
feasts that weleomed spring, one be-
held the renascence of a nation.
How appropriate were the words of
Viktor Rydberg’s beautiful Cantata as
they sounded through the cathedral of
Upsala during the impressive promo-
tion of the doctors!
« And yet, if we have fallen down in doubt,
And by the way ye mourn and ponder gravely,
Lift up the banner! flame it out
Once more, and bear it through the desert
bravely !
Care not, though ye perceive with piercing eye
A thousand suns from heaven's archway show-
ering!
Care not, though ’neath the scythe of Time de-
vouring,
Like golden seed the starry harvests lie!
All noble thoughts, all love that leads you on,
All beauteous dreams, Time never can see
wasting;
These are a harvest garnered from his tasting,
’ Tis to Eternity that they belong.
Advance Mankind! Be blithe, be of good
cheer;
Since in your breasts ye bear the eternal
here!”
What deep meaning too may one
not see in the beautiful medal issued
by the Royal Swedish Academy of
Science! Here is the nature that the
Swedes love so profoundly: the moun-
tains in which are buried vast deposits
of ore and fertilizing minerals, the
woods and fields still unexhausted of
their wealth, the waters with hidden
incalculable energy. In their .midst
observes and ponders the naturalist
THE PROGRESS OF SCIENCE 287
who himself did so much to bring ,a solution of copper nitrate, similarly
these natural treasures to the hands| treated in every respect except in its
and homes of his countrymen, type of} not having been in contact with ema-
the thinkers who to-day are piercing
further secrets and unlocking fresh
stores. And there, in a clear sky, rises
the sun.
RADIUM EMANATION AND THE
TRANSMUTATION OF THE
ELEMENTS
Sm Wrrram Ramsay has printed |
in Nature, for July 18, a letter, en-
titled “ Radium Emanation,’ which is |
interviews |
the basis of the alleged
which have been published in the news-
papers. The author states that a full
account of his researches will shortly
be communicated to the Chemical So-
ciety.
attention to
the fact that with Mr.
Soddy he had shown in 1903 that the |
spontaneous change of the emanation
from radium results in the formation
of helium; this observation has been
confirmed by others.
detected in the gases evolved contin-
uously from a solution of thorium
nitrate. When the emanation is in
contact with and dissolved in water,
the inert gas which is produced by its
change consists mainly of neon; only
a trace of helium could be detected.
Sir William now states that when
a saturated solution of copper sul-
phate is substituted for water, no
helium is produced; the main product
is argon, possibly containing a trace
of neon, for some of the stronger of its
lines appeared to be present. The
residue, after removal of the copper |
from this solution, showed the spectra
of sodium and of calcium;
lithium line was also observed, but
was very faint. This last observation
has been made four times, in two cases
with copper sulphate, and in two with
copper nitrate; all possible precau-
tions were taken; and similar residues
from lead nitrate and from water gave
no indication of the presence of
lithium; nor was lithium detected in
In his brief statement he calls.
Helium was once |
the red _
nation.
| According to the author these re-
| sults appear to indicate the following
line of thought: From its inactivity it
is probable that radium emanation be-
longs to the helium series of elements.
During its spontaneous change, it
|parts with a _ relatively enormous
amount of energy. The direction in
_which that energy is expended may be
modified by circumstances. If the
emanation is alone, or in contact with
hydrogen and oxygen gases, a portion
is “decomposed” or “ disintegrated”
by the energy given off by the rest.
The gaseous substance produced is in
this case helium. If, however, the
distribution of the energy is modified
by the presence of water, that portion
of the emanation which is “ decom-
posed” yields neon; if in presence of
copper sulphate, argon. Similarly the
copper, acted upon by the emanation,
is “degraded ” to the first member of
its group, namely, lithium; it is im-
possible to prove that sodium or potas-
/sium are formed, seeing that they are
_ constituents of the glass vessel in which
|the solution is contained; but from
analogy with the “decomposition-
products ” of the emanation, they may
also be products of the “ degradation ”
of copper.
| SCIENTIFIC ITEMS.
WE record with regret the deaths of
Professor Angelo Heilprin, the eminent
naturalist and explorer, professor of
paleontology and geology in the Phila-
delphia Academy of Natural Sciences
and lecturer in physical geography at
Yale University; of Dr. William L.
Ralph, curator of the Section of Bird’s
Eggs, in the U. S. National Museum;
of Sir William Henry Broadbent,
F.R.S., a leading London physician;
_of Dr. August Dupré, F.R.S., chemical
_adviser to the explosive department of
the Home Office of the British govern-
288 POPULAR
ment, and of Dr. Heinrich Kreutz,
associate professor of astronomy at
Kiel and editor of the Astronomische
Nachrichten.
THE tercentenary of the death of
Ulisse Aldrovandi, the celebrated nat-
uralist, was celebrated at Bologna,
from June 11 to 13, in the presence
of numerous delegates from foreign
countries. A memorial tablet was un-
veiled, while a medal and several vol-
umes compiled for the occasion were
presented to the delegates.
Tue Norwegian Storting has voted
the sum of 40,000 Kroner to Mr.
Roald Amundsen in recognition of his
services to science in traversing the
northwest passage and relocating the
magnetic North Pole——Dr. Otto Zach-
SCIENCE MONTHLY
arias, director of the Biological Sta-
tion at Plon, and Dr. C. G. Schillings,
the African traveler, have been given
the title of professor by the German
government.—Professor W. F. M. Goss,
dean of the Schools of Engineering and
director of the Engineering Labora-
tory of Purdue University, has ac-
cepted the position of dean of the Col-
lege of Engineering in the University
of Illinois.
THE Royal Society of Medicine, com-
posed by a union of medical societies
in London, has received a royal char-
ter. The society begins with a mem-
bership of 4,000 and an income of
$40,000. Sir William Church has
been elected the first president of the
society.
THE
POPULAR SCIENCE
MONTHLY
OCTOBER, 1907
A TRIP AROUND ICELAND
By L. P. GRATACAP,
AMERICAN MUSEUM OF NATURAL HISTORY,
HE study of islands, whether the attention of the visitor is directed
to their structure or their inhabitants, yields a peculiar pleasure.
They are quite definite and unique units. They reveal interesting
relations with neighboring continents, of which they so often are
merely separated fragments, and they afford texts for suggestive and
fascinating speculations as to past geographical conditions.
In their life no less than in their mineral features,. they. exhibit
to the naturalist, familiar with the interpretation of forms, biological
affinities with distant or near-by lands, and thereby shed side-lights,
frequently instructive, upon the migrations of plants and animals.
And they are, or have been, in themselves experimental stations, where
the theories of specific change or specific origin may find partial en-
dorsement or helpful refutation.
Long before Wallace wrote his “Island Life,” they had attracted
observers, and the unity with, or the diversity from, adjoining islands
or contiguous mainlands, of their flora and fauna furnished abundant
proofs of their ancient separation or their recent union with both.
An island, too, has its limits so irrevocably fixed, becomes, from its
isolation, such a definite tract, that its study has the economical value
of concentration and persistency. And this advantage obviously
reaches phenomenal value, the more remote the island is from any
other, because then its peculiarities teach the naturalist lessons in the
origin of living species, or supply the geologist with new types of ter-
restrial architecture.
It was long ago pointed out that
if we visit the great islands of the globe, we find that they present anomalies in
their animal productions, for while some exactly resemble the nearest continents,
others are widely different. Thus the quadrupeds, birds and insects of Borneo
VOL. LXxI. — 19.
290 POPULAR SCIENCE MONTHLY
correspond very closely to those of the Asiatic continent, while those of Mada-
gascar are extremely unlike the African forms, although the distance from the
continent is less in the latter case than in the former. And if we compare the
three great islands, Sumatra, Borneo and Celebes, lying, as it were, side by side,
in the same ocean—we find that the former two, although farthest apart, have
almost. identical productions, while the latter two, though closer together, are
more unlike than Britain and Japan, situated in different oceans and separated
by the largest of the great continents (Wallace).
These unexpected results warranted the inference that the con-
trasted areas, despite their nearness to each other, had, for long periods,
been severed, and that those, on the other hand, which were widely
sundered had been at some time, in some way, united by intermediate
connecting land surfaces.
Iceland is an island of most respectable proportions—a little
larger than Ireland; it occupies a position on the earth’s surface
especially interesting from its arctic relations, it furnishes sensational
contrasts by reason of the union, within its limits, of the opposed
empires of frost and fire; its plant hfe has European affinities; its
insect life is restricted, but also European; its bird hfe has a European
expression, but pertains also to the circumpolar distribution of identical
birds in both hemispheres; its geological history is recent and startling,
and its scenery strange and magnificent. It is, therefore, not sur-
prising that it attracts scientific and adventuresome visitors, though
it seems to the writer that these would naturally increase if, at least
in America, this island received some sort of popular elucidation.
Such is the purpose of this article.
Besides the especial wonders of its bold and frowning cliffs, its
ice-buried mountains and its foaming and tempestuous rivers, Iceland
for centuries has been the home of romance. Baring Gould was
perhaps the first modern English writer who appreciated and adequately
described the bewildering impressions made by Iceland upon a visitor,
though he failed to see its most marvelous aspects, and he pays his
tribute of praise very well indeed. It was our own Bayard Taylor
who, somewhat later, on the pages of the New York Tribune, remarked,
not that there is no interest in Iceland itself. On the contrary, une handful of
old Seandinavians there preserve for the scholars of our day a philological and
historical interest, such as no equal number of men have ever achieved in the
annals of the world. A thousand years ago they cut loose from Europe and
carried the most virile elements of its past almost out of reach of later changes.
But Iceland is so remote from us, in an intellectual as well as a material sense,
that any satisfactory knowledge of it requires a special appropriation of time
and study.
The easier and more common way to Iceland, the one taken by the
writer, is by the United Steamship Co.’s steamers (the Danish mail
line), which leave Copenhagen, at frequent intervals during the sum-
A TRIP AROUND ICELAND 291
mer, stop at Leith, the port of Edinburgh, and then variously steam
northward to Thorshayn on the Faroe Islands, and thence to Reykjavik,
the capital of Iceland at its southwestern headland, or turn to the
eastern coast of Iceland at once, and circuitously, landing at the settle-
ments and towns in the fiord valleys, circumnavigate it, finally dis-
embarking the traveler at Reykjavik.
It was in the latter way that the writer determined to gain some
insight into the coastal features of Iceland before he made a short but
instructive dash into the interior, from Reykjavik, using for that
purpose the indispensable Iceland pony. This is that most con-
scientious, affectionate and captivating little beast, whose docility and
plability—when knowingly handled—have made him the Icelander’s
constant companion, his only available substitute for the trolley and
the railroad.
The omniscient Cooke has not been unmindful of the prospects of
profit from the chance tourist drawn to the fabled shores of Iceland,
and has already provided excursion tickets from New York to Iceland
with accompanying arrangements for the equipment and conduct of
parties into the interior. In this way the soi-disant explorer may
most conveniently form his plans for this unusual outing. Less de-
pendent and more ambitious men arrange with leading guides at
Reykjavik for the despatch of men and horses and provisions to the
east coast from Reykjavik. They meet these expeditions at some of
the settlements, and traverse the island from east to west, fording the
rivers, hunting over the moors, fishing in the lakes and streams, pos-
sibly skirting the huge icefields, and reaching Reykjavik in time for
the returning steamers in September. A third and most important
group of visitors are professional men, who also take out considerable
equipment, in which clinometers, barometers, thermometers, hammers
and collecting boxes and bags replace the gun and rod.
Amongst the latter has been Professor Thorold Thoroddsen, of
the University of Copenhagen, who for thirty years has made a
laborious inspection of the natural features of Iceland, visiting under
circumstances of danger and extreme discomfort, its most inaccessible
localities, and Professor K. Keilhack, the German naturalist, whose
articles both in geology and in natural history have aided greatly in the
scientific. interpretation of this domain of wonders, while Professor
Slater, of the British Museum, has only recently contributed, in his
admirable account of the birds of Iceland, the garnered results of his
travel and observation to the growing library of Icelandica. In this
connection I should mention the capital “ Flora Icelandica,” of Stefan
Stefansson, which has recently appeared, and wherein the botany of
Iceland receives an extended and systematic treatment.
The approach to Iceland was made in an impervious and haunting
292 POPULAR SCIENCE MONTHLY
fog which later became confounded with, and imperfectly dissipated
by, torrents of rain. It was a disappointing reception, and all the
more vexatious because at Faskrudsfiord, the first stopping-place,
occasional raisings of the curtain gave spectral glimpses of vast
snowy peaks accumulated in unseen grandeur behind the rolling folds
of the mist. It was in a measure a compensation for their obscuration
that plentiful showers seamed the steep canon walls of the inlet with
plunging silver cataracts. These developed with instantaneous
rapidity, leaping down over the basaltic cliffs in innumerable threads.
A word descriptive of the physical configuration of Iceland will
make more clear the outline and incidents of the trip about the
island. Iceland has in general a subelliptical shape with its longer
axis lying northeast and southwest. This approximate form is extended
into a sort of lateral excrescence or finger-formed expansion at the
northwest margin, in a deeply dissected peninsula, which lies between
the Breitfiord and the bay of Hunafloi (see map).
The island is fringed on its eastern, northern and western shores
by a continuous succession of inlets, bays, fiord-like arms, which often
subdivide and branch at their heads into smaller crevices and com-
municate with lowlands or valleys leading back into the hills and the
interior. The southern shore offers a considerable contrast to this
fimbriation of its other coasts, and while it is assumed by 'Thoroddsen
that the southern shore was at one time indented by similar inlets,
to-day it presents an entire outline which represents broad margins
of sand, flows of mud and detrital deposits, scored by glacial streams,
and punctuated by lakes or lagoons, in other words, a fiorded area
blocked and filled up by later blankets, and upthrown banks and
plugs of sand from the sea, or by the fluviatile washings from the
higher country, and the past deluges of sediments from the melting
glaciers.
The trip about the island is made up of entrances into these fiords,
and of skirting the coast, which presents a series of superb pictures,
while the occasional stops permit transient glimpses of the life and
industry of the people. Our company, on the staunch little craft
Vesta, conducted on its devious ways by the bluff and able seaman,
Captain Braun, was one of diversified elements and entertaining con-
trasts. a 52
School observations :
iy GICGIOE sscn-ccrerseeceeneassseeaee Pearson Boy and boy 54
School measurements :*
ifead bread thivse.scsee-2cesess ees AS Sh CE 59
lend lengthss:-ssscccs--s0r=-aeee eb COWES anes -50
Head) Welg@ht: co 2cs- acme onme sos < Shen goS cS mise .55
Cephalic Index: 272. .22---ssees07 | of Sain Saal .49
Mean paternal value, .48. Mean fraternal value, .53.
For both parental and fraternal inheritance in man we find for
physical characters much the same values as we find in the cases of
cattle, horses and dogs. This is illustrated in Table III.
TasLe IIT.
PARENTAL INHERITANCE IN DIFFERENT SPECIES
Species } Character ‘Mean Ve sig Dee Pale aaea
10 Ei rapndasancenaato eB ston cas seaariconcee | Stature 51 4,886
Span 48 4,873
Forearm 42 4,866
Eye color .50 4,000
ETGVERG pst panne ene acen ean dncesiae dant es | Coat color | 52 4,350
Basset, HOUnNd cc. .csecences see ccoansens | Coat color .O2 823
ETE VWOUMC sa. caneun- as sasmavertoyaconuee | Coat color 1 9,279
x. |sRight antenna | 44
Aphis eee eee meme eee teen teaser eset eeeeeeee Frontal breadth | 368
, | ¢ Protopodite 47
Drip trina tee ank ey eee \o See eee
‘git (® _t Body length 96
Mean j.......-+2eeceeceeeeeeeeeseees a — .48
Turning now to diseased or pathological cases, we have at present
only three types that have been dealt with. These are Mr. Edgar
* Reduced to standard age of twelve years.
THE SCIENCE OF NATIONAL EUGENICS 401
Schuster’s results for the inheritance of deaf-mutism; Mr. Heron’s re-
sults for the inheritance of the insane diathesis, and my own work on
pulmonary tuberculosis. It is worth noting that these results are all
first-fruits of Mr. Galton’s foundation of a eugenics laboratory.
Tasium EV:
PATHOLOGICAL INHERITANCE
Condition Investigator Parental Fraternal
Peat mutism: ooo. oo... esecascceccoveses Schuster 54 .73
IRSANE Mp oo e eae antne= areca nnaene nue Heron 58 -48
Pulmonary tuberculosis.............. Pearson 50 48
Mean value: 2-0 2c- nce se ce cancer 4 06
Now it must be admitted at once that these diseased states are far
harder to deal with than simple quantitative characters. Their treat-
ment involves more assumptions, and the data are less trustworthy.
TABLE V.
ScHooL OBSERVATIONS. RESEMBLANCE OF SIBLINGS
Physical Characters
Character Boys | Girls Boy and Girl
Digaltlyc.cc.csh esas eseeedsesscastecscasess 52 ol .O7
IO ete se toke enna e ar nemenaes aa 04 52 53
Hlatnicoloriscecssscst+cssccesesecceuse cee .62 -56 .5d
Wunliness: 4-507 s2ccss nsec Hiveeweosebs 52 .o2 2
Wepnalic WGCK.. 5... scscasesce-can ens 49 54 43
CANCE peer cn so anncadereaeoanss=- 50 43 46
iElieadi breadtint--cc-2 usccescseecs eens 59 -62 54
eleag rete icc e-cace-coeccdees-eese-o--* 59 52 9
1 AT eet oe eee ek Se | 54 .53 ‘pL
TaBLe VI.
ScHooL OBSERVATIONS. RESEMBLANCE OF SIBLINGS
Psychical Characters
Character Boys Girls Boy and Girl
WAV ACEEY on ap asesedan ane dent nntaxcoors eas 47 43 49
INGKETELV ENCES) .sccccececstsaccncavesesss ats) 44 -O2
ERETOSPCCRON secs encnasaess=secauss ce 59 47 63
BS UIATALY ane Reese eeeeancenaae. cae 50 OT 49
Conscientiousness........ss..ssseeeeee .09 .64 .63
PNGIAROL.<« sansauanesosnasnasenoeae © Ponseds 51 49 51
URI TIINEG 5s feapnandeseenasnsade? deaaaeenes -46 47 44
13 Ehi(s W shins) errr nd conn ue 53 56 48
Mearns oi oec2behateeoateasses ss 459 .51 .O2
But from what I show in this table I think we may safely draw two
conclusions: (a) the tendency to diseases of mind and body is inherited ;
(5) this inheritance may be slightly greater, it is hardly likely to be
less, than the inheritance of quantitatively measurable physical char-
acters.
VOL, LXx1.—26.
— 402
I now turn to the inheritance of the psychical characters.
again we tread on more difficult ground.
POPULAR SCIENCE
MONTHLY
Here
On first investigating the
problem myself I worked with school children, and for the following
reasons.
INTENSITY oF RESEMBLANCE
- & @ Ny = SO
Ta edn
ae
Fis ea cas 8 Me
Mee
sci WODEEE
Seer aeeee
=
o @
9
7)
-
=
a
co
INTENSITY OF aan
Fig. 3. COMPARISON OF RESEMBLANCE FOR
PHYSICAL AND PSYCHICAL CHARACTERS,
bad physique,
moral characters and the mental temperament,
and with much the same intensity.
The teacher compares the individual with his general experi-
ence of many children; he thus
approaches much more nearly an
absolute standard than if we ask
for an isolated return as to a single
family from this or that relatively
inexperienced recorder. Secondly,
it is not often that we can find
any data of the psychical char-
acters of father and son taken at
about the same period in life.
If you will look at Tables V. and
VI. and Fig. 3 you will see that
I have not been able to discover
any difference in intensity of
inheritance between the psychical
and physical characters in chil-
dren. Mr. Schuster has been
able to get over my difficulty at
least for one character, that of
ability in father and son as judged
by the Oxford Class Lists. In a
recent memoir published by the
Galton Eugenics Laboratory he
obtains the results given in Table
VII. If we allow for an academic
selection of intelligence, we reach
values singularly close to those
obtained for the physical charac-
ters. I have added some results
of my not hitherto pub-
lished, taken from my family rec-
ord schedules. To sum up, there
appears no doubt that good and
own,
the liability to and the immunity from disease, the
are inherited in man
As a next stage, I point out—if it be needful to do so—that Figs.
4 and 5 show that those who live longest, and may be presumed to be
*The tables reproduced here are drawn from my Huxley lecture or other
biometric memoirs.
THE SCIENCE OF NATIONAL EUGENICS 403
TABLE VII.
INHERITANCE OF ABILITY. MALE AND MALE
Paternal Inheritance
Method Authority Ages | Intensity
Oxtord!'class\ lists! /225-.0.\.csesececees Schuster Adults 49
amily TECOPGs 22. /kese-ssnesene r= ss Pearson Adults 58
Fraternal Inheritance
Oxford class listsy cs. 4cc
&
Z
>»
a=
ie)
&
n
a
q
4
<
i]
i=)
a
<
vas
_
°
=
P
=
nm
=)
—_
=
Za
<
oO
=
a]
=
=
)
=
°
i
2
THE PROGRESS OF SCIENCE
475
THE PROGRESS OF SCIENCE
MORTALITY STATISTICS
Tue Bureau of the Census has just
issued its annual report on mortality
statistics for the year 1905. There is
surely nothing more dramatic than
tables of death rates, however uninter-
esting they may appear to the casual
observer. Thus the death rate in In-
diana and in Michigan is scarcely above
13 a thousand, whereas in European
Russia it is 33. If the population of
European Russia is assumed to be 130
million, this means that of the 4,290.-
000 people who die annually in that
country 2,600,000 would not die if the
conditions were as favorable as they
are in Indiana and Michigan. There
is no reason to suppose that the Rus-
sians are naturally less vigorous than
those living in our central states, and
this great loss of life—besides which
the number of those killed in the Rus-
sian-Japanese war is_ insignificant—
must be due to conditions of life which
could be remedied. It is probable that
in the cases of the states quoted, and
in some parts of Great Britain, Nor-
way and Sweden where the rate is
equally low, it is still very much high-
er than it should be. We may hope
that the publication of the death rates
may itself have a tendency to call at-
tention to the enormous annua! sacri-
fice of life, and it is consequently for-
tunate that the Bureau of the Census
is now able to publish annually a vol-
ume of statistics and that the area
covered by the statistics tends to in-
crease.
In 1890 the states in which registra-
tion was effective had a population of
about twenty million, and in addition
there were registration cities having a
population of about ten million. In
the year 1906 the states of California,
Colorado, Maryland, Pennsylvania and
South Dakota were added to those
which maintain effective registration.
The population now included in the
registration area is over thirty-six mil-
lion, or nearly half the total popula-
tion.
Indiana and Michigan have the low-
est death rates among the registration
states; the death rates being, respect-
ively, 15.3 and 14.7 in their cities, and
12.7 and 12.8 in their rural districts.
In New York City the death rate was
19.4 as the average of the five years
from 1900 to 1904. The cities having
the lowest death rates were St. Joseph,
Mo., St. Paul, Minn., and Minneapolis,
Minn., where rates, respectively, of 7.6,
10 and 10.6 are assigned. Charleston,
S. C., has the highest death rate—31.3
—but here, as in other southern states
with abnormally high death rates, the
incidence is on the negro population.
The death rate at Charleston, for ex-
ample, is 22.9 for whites and 44.3 for
negroes.
Tuberculosis of the lungs is still by
far the most fatal of all diseases, caus-
ing 172 deaths each year for each hun-
dred thousand of the population. It
is followed by pneumonia with 135,
heart disease with 121, diarrhea with
113, and nephritis and Bright’s disease
with 94. There is a tendency for dis-
eases such as apoplexy and cancer,
which affect mainly elderly persons, to
increase, and this is of course a grati-
fying indication that the relative num-
ber of those living beyond middle age
is increasing. Contagious diseases nat-
urally show large fluctuations, but
searlet fever appears to have decidedly
decreased, the number of deaths per
thousand having fallen from 12 to 7.
We reproduce diagrams originally
476
1811 1821 1831 1841
MARK.
O opts
POPULAR SCIENCE MONTHLY
1851 1861 1871 1881
AVERAGE ANNUAL BIRTH RATES OF CERTAIN EUROPEAN COUNTRIES PER 1,000
OF POPULATION, BY DECADES (STILLBIRTHS EXCLUDED).
prepared under the auspices of the |
French government showing graphic-
ally the number of
births and deaths per thousand of pop-
.ulation in those countries which pub-
lish adequate statistics. It will be
noted that in all parts of the civilized
the birth and the
death rates tend to decrease, and that,
average annual
world both rates
as a rule, those countries having the
lowest death rates have also the lowest
As is well known, the low-
est birth rate is that of the French—
22.2 during the decade 1891 to 1900
This is followed very
birth rates.
and still falling.
closely by the figures for Ireland—23.
There is then a break to Sweden and
Switzerland, with birth rates, respect-
ively, of 27.2 and 28.1. The highest
birth rates recorded are in Servia and
Roumania. Germany has a birth rate
of 36.1; England and Wales of 29.9.
During the last twenty years the birth
rate has fallen in every country and
the death rate has also fallen in prac-
The lowest death
rates, 16.1 and 16.3, respectively, are
tically all countries.
in Sweden and Norway. The highest,
33.4 and 30, respectively, are in Russia
and Spain.
It should be remembered that the
birth rate and the death rate have
THE PROGRESS OF
1801
To
1811 1821 1831
SCIENCE 477
1851 1861 1871 1881 1891
To TO To TO To
860
1S
AVERAGE ANNUAL DEATH RATES OF CERTAIN EUROPEAN COUNTRIES PER 1,000
OF POPULATION, BY DECADES (STILLBIRTHS EXCLUDED).
probably decreased even more rapidly | the admission of the officers of state
than the statistics show, as births and
deaths, a rule, tend to more
accurately recorded now than formerly.
Thus it is by no means certain that the
birth rate in England increased from
the period 1841-50 to 1871-80. Even
now when an infant dies at an early
age, the registration of both birth and
death is sometimes not recorded, and
this custom was doubtless formerly
more prevalent than it is at present.
as be
THE GROWTH OF THE
UNIVERSITIES
STATE
THE first bulletin of the Carnegie |
Foundation, which is concerned with
|
universities to retiring allowances, con-
tains a good deal of interesting in-
formation in regard to the growth of
these institutions, part of which is
summarized in the accompanying table.
The first column gives the date of
founding, and some may be surprised
to find that the first state universities
were. established in the south, Mich-
igan, often looked upon as the oldest
state university, being in fact the tenth
in order. Another circumstance per-
haps not generally known is the fact
that two state universities were estab-
lished in Ohio at the early dates of
1804 and 1824, and that the Ohio State
POPULAR SCIENCE MONTHLY
478
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THE PROGRESS OF
University at Columbus was not estab-
lished until 1870. The University of
Florida, established in 1904, makes the
number of state universities thirty-
nine, and, as there are three in Ohio,
the number of states and territories
having state universities is thirty-
seven.
Nearly all the universities of the
eastern states have at one time or an-
other received appropriations from the
state and have been to a certain extent
under state control, and at present
certain universities, such as Pennsyl-
vania and Cornell, may be regarded as
partly state institutions.
the governor of the state is a member
of the board of trustees and appropria-
tions are made by the state for the
support of the university.
The next column of the table gives
the numbers of instructors and stu-
dents, according to which the Univer- |
sity of New Mexico, with 89 students
and nineteen instructors, is the small-
est of the institutions, while the largest
are Wisconsin, with 3,571 students and
317 instructors; Minnesota, with 3,955 |
students and 317 instructors; Illinois,
tors;
and 332 instructors, and California,
with 4,173 students and 403 instruc-
tors. According to the figures annu-
ally compiled by Professor Tombo and
published in Science, the five largest
universities which are independent of
the state are Harvard, with 5,343 stu-
dents and 583 instructors; Chicago,
with 4,731 students and 341 instruc-
tors; Columbia, with 4,650 students
and 600 instructors; Cornell, with
4,075 students and 525 instructors;
and Pennsylvania, with 3,934 students
and 375 instructors. It will thus be
seen that the leading corporations do
not differ greatly in size.
The table next gives the annual tui- |
tion fees, whence it appears that Indi-
ana, Arkansas, Nevada and Oklahoma
charge no fees, while in a number of
other states the fees are nominal.
In each case |
SCIENCE 479
eral of the universities charge higher
fees to non-residents than to residents
of the state. Perhaps the most inter-
esting data on the table are the com-
parisons of the annual income apart
| from tuition fees of these universities
in 1896 and 1906. There is here an
increase that holds for every institu-
tion without exception and which is
certainly most remarkable. Thus the
annual income of the ten principle uni-
versities of the middle west was in
1896 $1,689,200, whereas ten years
later it was $4,577,700. The figures
given in the table are, however, some-
what obscured by the fact that there
is no distinction made between appro-
priations for current income and for
new buildings. The two following col-
umns give the approximate total ap-
propriations from the state and gifts
from private sources, showing clearly
how largely state universities are de-
pendent on the public for support.
Thus Illinois, which has received $6,-
000,000 from the state, has only re-
ceived $25,000 by private gift. Some
of the universities, as Michigan and
| California, have, however, received con-
with 4,074 students and 408 instruc- |
Michigan, with 4,136 students |
siderable gifts. In his report President
Pritchett urges that the universities
must depend either on public appro-
priations or on private gifts, and this
point of view is on the whole supported
| by these figures and by conditions in
Sev- |
| foreign
The
however, are not necessarily final.
conditions,
In
New York City, for example, there are
countries.
admirable museums of natural history
and of the fine arts and botanical and
zoological gardens which are supported
almost equally by the city and by pri-
vate gifts.
SCIENTIFIC ITEMS
We regret to record the deaths of
Major James Carroll, U. 8. A., known
for his researches on yellow fever, and
of Professor W. O. of Wes-
leyan University, known for his re-
Atwater,
searches on nutrition.
480 POPULAR
An institution for the suppression of
tuberculosis is planned in Germany in
honor of the twenty-fifth anniversary
of the discovery of tuberculosis by
Professor Robert Koch. Appeal is
made for contributions sufficient to
make the institution a tribute of grati-
tude to Koch, similar to those with
which the name of Pasteur has been
honored in France and that of Lister
in England—A “Morley Chemical
Laboratory,” named in honor of Dr.
Edward W. Morley, emeritus professor
SCIENCE
MONTHLY
of chemistry, will be built at Western
Reserve University during the present
year.
Proressor A. N. SKINNER, of the
U. S. Naval Observatory, has retired
on reaching the age limit of 62 years.
—Dr. Ellwood Mead, chief of irriga-
tion investigation of the U. 8. Depart-
ment of Agriculture and professor of
irrigation in the University of Cali-
fornia, has accepted the office of chief
of irrigation investigations for Aus-
tralia.
JS sb aab
Peewee 5 Cl Ne
MEO INA ERE: ¥
DECEMBER, 1907
NOTES ON ASIATIC MUSEUMS
By PROFESSOR BASHFORD DEAN
COLUMBIA UNIVERSITY
SIA, whatever its contributions to art and science, has, humanely
speaking, taught little to the west as to either the means of form-
ing its illustrative collections or the manner of displaying them; in fact,
as far as I am aware, the trend of Asiatic culture has been rather to
deter its people from collecting. For such an interest, to pure eastern
ideals, would foster. the heresy that the things of this world are to be
the more highly prized: or, in another direction, it might suggest unde-
sirable ostentation. It is from the latter point of view, in fact, that a
Japanese collector will still decline to exhibit his treasures outside of
the circle of his intimate friends. In any event, whatever be the rea-
sons, I think it may safely be said that comprehensive collections were
early unknown in the east. In India, land of fabulous riches, the pre-
European collections appear to have been confined to the cabinets of
rulers and the wealthiest civilians, and were made up largely of deco-
rated objects, ivories, jewels, arms, now and then menageries—the last
sometimes including exotic animals. Such collections were usually
little more than a gathering of valuable heirlooms, objects obtained .
during travels, and curiosities generally.1 And similar conditions pre-
vailed, as far as I was able to find, in China. In Japan, small collec-
tions were, and are, very numerous. Professor Morse, knowing his
theme more accurately than Huish, describes the Japanese as a nation of
collectors; but such collections, as I think all will agree, are notable for
their quality rather than their comprehensiveness, and are formed in the
1T recall, as a typical specimen in such an early collection a copy in ivory
of a human skeleton which a rajah (of Tanjore) had caused to be prepared in
Paris—for a genuine one could not, according to the rules of caste, be used in
his anatomical inquiries.
482 POPULAR SCIENCE MONTHLY
strictest sense for private use. In Japan, as elsewhere in Asia prior to
the invasion of European methods, there was not, I believe, a single
public musewm, unless indeed we regard as museums the storehouses of
temples. These, however, contained little more than the reserve stock
from which objects for temple service or decoration were chosen.
The earhest Asiatic museum appears to have been established in the
Moluccas, about half a century after their definite settlement by the
Dutch, and in the classic work? of Georgius Everhardus Rumphius,
written at the close of the seventeenth century, we have a record of the
number and variety of objects which had been gathered together by this
enterprising collector in the room of curiosities in Amboyna (Amboin-
sche Rariteitkamer). It is evident that this collection was well repre-
sented in mollusks, crustaceans and echinoderms. It contained a number
of minerals and a small collection of fossils, the latter representing many
groups. The descriptive catalogue of Rumphius, it may be mentioned,
is well known to naturalists as containing the first account of the soft
parts of the chambered nautilus, accompanied, too, by a figure which
for a century and a half proved the most accurate in existence. Few
details appear as to the organization of this pioneer Asiatic museum.
Its founder was a well-to-do merchant in Amboyna, and it was prob-
ably installed in one of his warehouses. As far as I am aware, there is
no proof that it was formally opened, in the sense of a modern museum,
but by analogy of contemporary collections it is probable that the curi-
osity room of Amboyna was as freely open to visitors as the similar
collections in London, Dresden or Paris.
In India the modern public museum found its definite foothold at
the time of the extension of British rule. At the end of the eighteenth
century, there were already active collectors among the officials of the
East India Company, but in general the material then collected,
whether ethnological, plant or animal, found its way into Europe.
In the work of Linneus, for example, we find record of many Indian
species which had been sent him by European collectors. It was by
such early workers in various Indian cities that societies were formed
which became of considerable importance toward the middle of the
nineteenth century. And it is to these local societies that the origin of
many of the recent museums is due.
In the present paper it is not my plan to refer even in outline to
all museums of Asia. Those of Japan are so important that they
might conveniently be reserved for a separate paper. The Dutch mu-
seums, moreover, I have not had an opportunity of visiting, nor yet
those on the continent in the Malayan states. When in Calcutta, I
* Amsterdam, Francois Halma, 1705. Part of the collection, as Mr. C.
Davies Sherborn has kindly ascertained for me, was later sent to Europe and
sold, 1682, to Cosmo de Medici III. It was subsequently transferred to Austria
as part of the Medicean inheritance.
NOTES ON ASIATIC MUSEUMS 483
was told by Dr. Annandale of the interesting museum at Kuala Lumpur
in Selangor, the federal capital of the Malayan states, which promises
toa be most complete. A building is here in process of construc-
tion, which will make this museum twice the size, for example, of
the well-known museum at Colombo. Its present curator is the orni-
thologist, Mr. H. C. Robinson, formerly of Liverpool. I learned also
of the museum at Thai Ping, capital of Perak, which contains a remark-
able ethnological cabinet and an extensive collection of Malayan rep-
tiles.. This museum, under the direction of Mr. Leonard Wray, is, I
was told, one of the most interesting in Asia. The museum at Bankok,
on the other hand, is less important, in spite of the apparently more
favorable conditions under which it has grown up. And its arrange-
ment leaves much to be desired.
Of the museums in the Dutch East Indies, that at Batavia is easily
the first, containing extensive local collections, both ethnological and
faunistic. A second museum, at Trevandrum on the west coast of
Java, has received the favorable comment of experts. Its collection
of whales is especially complete.
The museums in China may be dismissed with but few words. In
the Chinese treaty-ports there is little interest in museum matters on
the part of resident Europeans, whose ways are commercial, and under
existing conditions the Chinese authorities can hardly be expected to
grant funds for such purposes. The best Chinese museum is the
one at Hong Kong. It has a separate building with well-lighted
galleries, and exhibits a fairly extensive series of natural history and
ethnological objects, coins, etc. It is clear, however, that its resources
are very restricted, and such a museum, whatever its effect upon the
oriental visitor, is apt to be uninspiring. In Peking, however, in con-
nection with the Imperial University of China, an important museum
will soon be opened; it may be mentioned that this branch of the gov-
ernmental educational work has been largely directed by the Japanese.
The museums of the following cities may be given a more detailed
report, viz., Singapore, Colombo, Madras, Calcutta, Lahore and Jaipur.
The museum in Bombay is said to be uninteresting, and I neglected to
visit it.
SINGAPORE
The museum at Singapore, known as the “ Raffles Museum,” had its
origin (1844) as a proprietary library in which local curiosities came
to be preserved. In 1874 the institution was taken over by the
British government (Straits Settlements), and in 1887 the present
building was provided to house a collection acquired at the time of the
Victorian Jubilee. The building is well proportioned, suitably lighted
and planned, Fig. 1, but too small for its needs, and the authorities
are now constructing an addition. This will be of the same size as the
484 POPULAR SCIENCE MONTHLY
pat
a
=
Ss
4
Si
2
Fic. 1. SINGAPORE. ‘}HE RAFFLES MUSEUM AND LIBRARY.
earlier building, and is to be connected with it by a wide gallery pass-
ing from behind the main staircase. Each building measures about
250 feet long by 50 feet wide; the cost of both buildings amounts to
about $100,000. Building, it will be seen, is distinctly less expensive
than in the Occident !
The site of the museum is in a small city park. Entering the
building from the town side, one passes into a spacous rotunda well
filled with cases, and giving one the preliminary color of the local
fauna. Prominent, for example, is a tiger fairly wel mounted, and
with a jungly background. This huge creature had been, I was told,
the household pet of a local Rajah. One may mention, incidentally,
that the tiger is decidedly on the increase in the Malay Peninsula,
indeed even in the immediate neighborhood of Singapore. The col-
lection of insects in the museum is important. In the rotunda is a
series of native beetles and orthopters, including among the former,
wonderful longicorns and Scarabeeids; and, among the orthopters,
the best examples I have seen of leaf insects and walkingsticks. At
one side of the rotunda is the entrance of the Raffles library (now
grown to 30,000 volumes), which is devoted largely to works dealing
with local natural history and ethnology. At the back of the rotunda,
one ascends the stairs and enters the natural-history gallery and the
ethnological rooms. Among noteworthy exhibits I recall the collection
of local butterflies and moths, and a series, possibly the best extant,
of paradise birds. The reptiles include turtles, crocodiles, and a
great number of local snakes. The cases containing the gibbon and
NOTES ON ASIATIC MUSEUMS 485
ourang would, I am sure, be cordially envied by the best western
museums, even though the mounting is not quite up to the present
standard. I recall particularly one male ourang with a splendid head,
and of extraordinary size. Among the zoological rarities are the relics
of a very young dugong. This had been brought to the museum living
and the preparations are accompanied by sketches of the living animal.
In invertebrate material there is the usual range of crustacea, corals
and sponges, most of them carefully determined. The ethnological
cabinet (Malayan) is important, as one might expect, and its arrange-
ment is well carried out. There are models of houses, some with
inao suspended about them, suggesting primitive Japanese buildings,
even with the curious “ frog-thigh beams ” crossing at the ridge pole, as
in the most primitive Shinto temples, and with these are many sug-
gestions of relationship with Japan. Of Dyak objects there are rich
gatherings, including a collection of krisses, costumes, ornaments,
etc. There are a number of the sharply-perforated carvings still
used to decorate Urala ceremonial feasts, groups of objects used in
marriage ceremonies, collections illustrating local basket-making, an
art in which the Malayans are especially skillful. There are.also cases
of native cloths, coins and ornaments of gold and silver, the latter
not as good in quality as one might reasonably expect. In the artistic
treatment of many of these objects there are obvious affinities with
the South Seas. Much of the success of the present museum has
been due to the labors during the past dozen years of the director, Dr.
R. Hanitsch, whose picture, as he stands in front ot his bungalow, near
Hine
he
Fic. 2. SINGAPORE. BUNGALOW OF THE MusrEUM-DIRECTOR, Dr. HANITSCH.
486 POPULAR SCIENCE MONTHLY
the museum garden, is shown in Fig. 2. Dr. Hanitsch is a graduate of
the University of Jena, and was for many years demonstrator in zoology
in the University College of Liverpool. The former director was the
well-known ornithologist, Mr. W. Davidson.
CoLOMBO
This museum, oldest in its building (1877) and in some regards
best of Asiatic museums, was built on the outskirts of the city in the
middle of the old cinnamon gardens. It is especially important to the
general visitor as giving him the only practicable glimpse of the antiq-
uities of Ceylon. It stands back from the red road, its buff-colored
and long two-storied facade appearing prominently against a setting
of tropical trees. On the ground floor are arranged the antiquities:
in one room are objects in precious metals and stones, arm-rings, neck-
laces, utensils, caskets, sword handles;.and near by are figures dressed
in Cingalese finery of early times; on another side is a library con-
taining Ceylonica, and a mass of the ruler-shaped books with palm-
leaf pages scratched with Sanscrit ; on still another side, in an imposing
gallery, is a collection of architectural and decorative objects in wood
and stone, including the colossal lion brought from Pollonarna, on
whose back the native kings sat when they administered justice. Here
also is the beautiful window from the ruin of Yapahoo, and a huge
portrait statue of a twelfth-century king. On the walls of the main
staircase are copies of the frescoes of the caverns of Sigiri. The collec-
tion of antiquities extends even into the garden, whcre several o* the
larger statues and a shrine are exhibited. The upper story of the
museum is devoted to natural history, and here the distinguished
director, Dr. Arthur Willey, has arranged groups of animals to give the
visitor an adequate picture of the wild life of Ceylon. Alcoholic and
dried specimens are well displayed and labeled, and even living speci-
mens are interspersed, as in a case containing leaf-resembling insects.
Dr. Willey has taken greatly to heart the need of exhibiting hving
creatures in the interest of his museum and, in the garden adjoining
his office, he thas arranged a small menagerie, which has proved a
great attraction no less to foreign visitors than to natives. Nor does
Dr. Willey escape his living charges even when he goes to his bungalow,
for there I saw a fine series of the rare lemur, Loris, as well also as a
specimen of [chthyophis glutinosa, the earthworm-Like amphibian whose
development was studied by the Sarazins.
No one should leave Ceylon before paying a visit to the renowned
botanical gardens, with a small museum, at Peradeniya; for it is but
seventy miles from Colombo and at a delightful altitude (1,500 feet).
For here within a small area one may see, with a minimum of discom-
fort, the rarest and most striking tropical plants, from minute orchids
NOTES ON ASIATIC MUSEUMS 487
to banyan trees: and one wanders about as in a land of enchantment,
amid traveler’s palms, which will spout water if one punctures a stalk,
breadfruit, cocoanuts, nutmegs, cinnamon, deadly upas trees, Bauhinia
racemosa, with‘its cable-like stems, and the telegraph-plant, Desmodium
gyrans, automatically lifting and dropping its leaves. Incidentally,
too, there are zoological interests. Not uncommon are trees infested
with flying foxes: and in the neighborhood the traveler to the east
may see his first elephant working in the fields, but willing to show
his paces for a few pice; so too one might happen to make the acquaint-
ance of land-leeches, which find their way unpleasantly through the
3. 8. COLOMBO. CITY MUSEtM,
But as an offset to this he may see a wild
rr. Or he may discover a cobra and induce it
Mapras
dras is in many regards a quite modern in-
are new and spacious, built of dark brick and
icenic style, Fig. 4. Its collections illustrate
uistory, archeology and art of southern India.
) is the important Connemara library, rich in
history of Madras. The natural-history section
seum, part of its collection dating from 1846,
nterest of including within its animal galleries
mens. ‘The archeological section is rich in pre-
lly pottery: it contains, however, many objects
enteenth centuries, arms, armor and cannon, of
s well as of native wars. Among other curious
“ONIGTING WAASNIY
sage
HO
:
“‘SYUCVIV
pol
NOTES ON ASIATIC MUSEUMS
MADRAS.
VIEW IN ONE OF THE NATURAL HISTORY GALLERIES.
Fic. 6.
MADRAS. GALLERY OF METAL WORK.
490 POPULAR SCIENCE MONTHLY
relics is a large swinging-post terminating in an elephant head, probably
unique, which in a remote village was used up to relatively recent times
for human sacrifices. The art objects are represented in great variety
and are attractively exhibited, textiles, pottery, wood and metal work,
musical instruments, drawings. One recalls especially the suite of
pictured. cotton curtains for which Madras has long been noted; also
the beautiful repoussé work in precious metals (Fig. 6). The museum
is distinctly one of the most successful in India. Its director is the
zoologist, Dr. Edgar Thurston.
CALCUTTA
The museum of Calcutta is far and away the most imposing of
Asiatic museums, representing, as it does, the government of India in
the imperial capital. Its buildings, Fig. 7, are the most extensive and
its collections the most important. In this region, moreover, it is the
oldest, for it preserves the collections of the Asiatic Society of Bengal,
founded in 1784.
The success of the museum, it may be remarked, has been due in no
small degree to its tradition of selecting directors eminent both as
scientists and as executives. It was to Mr. Bly, anearly curator of the
Asiatic society (1842 to 1862), a voluminous correspondent of Darwin,
by the way, that the credit belongs for securing governmental assistance
in erecting the museum’s first building. His successor was John
Anderson, who remained in charge until 1886. And his, in turn, was
Dr. Wood Mason, 1886 to 1893. And from that time to the present,
the director has been Major A. Alcock, widely known for his researches
on the deep-sea fauna of the Pay of Bengal.
Fig. 7. CaLtcutta. THE INDIAN Museum. Front view. From Chowringhee.
NOTES ON ASIATIC MUSEUMS 4y1
Fie. 8. CALcuTTaA. HALL OF INDIAN MAMMALS.
At the time of the opening of the new museum (about 1890) the
collections of the Asiatic Society were transferred to the British govern-
ment. They comprised principally three classes of objects, zoological,
ethnological and archeological, the last of unique importance. They
include the antiquities secured by Colonel Mackenzie from the Amra-
vati tope (1796 and 1816), and the collections of the Tytlers, Kittoe and
General Cunningham. The last named investigator, one of the founders
of the museum, secured for it also the objects from the Bharhut stupa.
The entire collection thus contains in large measure the figured speci-
mens in Indian archeology and it is especially rich in the finds from the
neighborhood of Lucknow, Nagpore, Benares and Delhi. The ethno-
logical cabinet is based upon the collection of Roer, whose catalogue
dates from 1843. By 1882 no less than 600 crania were listed. The
zoological division of the museum is based upon the Blyth collection of
the Asiatic Society. As early as 1862 there were represented 600
species of mammals, 2,000 species of birds, 300 of reptiles, and 1,000 of
mollusks; and since this time the zoological collection has increased
vastly. Figs. 8, 9, 10.
The Calcutta museum expanded notably about two decades ago,
when it incorporated two allied institutions. The first of these was
the economic museum of the government of Bengal (added in 1887),
whose collections are arranged in separate galleries, and the second, the
collections of the geological survey, these added (about 1890) when
the public museum was opened. ‘The subsidy for the latter institutions,
it may be mentioned, is separate from that of the main museum, about
40,000 rupees a year being granted by the government for their annual
support. And a similar appropriation is made for the remainder of the
museum.
492 POPULAR SCIENCE MONTHLY
Under the present director the
work of the museum has made
notable advances. During the past
twelve years over 100,000 speci-
mens have been entered in the
books of the museum and the
new material has been extensively
studied. Especially through the
cruises of the Investigator carried
out under Major Alcock’s direction
(Major Alcock came to India as
surgeon-naturalist (1888-1892) to
examine the sea-barriers of India),
a wealth of marine material has
been placed in the hands of special-
ists throughout the world. And
the museum had already published
many memoirs upon it—twenty-
five, or thereabouts. It might be
mentioned, as a sad commentary
upon the relation of politics and science in India, that the well-known
gallery of fishes arranged by the director, after years of labor, has
recently been demolished by order of the Viceroy, Lord Curzon, who
could find in Caleutta no other gallery in which to house a collection
of relics of the Sepoy rebellion !
Fig. 9. CALCUTTA. PORTION OF THE BIRD
HALL.
The invertebrate collections of the museum are extensive and well
displayed. Particularly interesting is the entomological cabinet which
includes the de Nicéville lepidoptera and the Dugeon hymenoptera, the
latter comprising about 1,000 type specimens. The entomological sur-
vey undertaken by the museum is its last development, establishing in
1903 the first entomological laboratory in India, in connection with a
commission of forestry. Equally important are the geological ma-
terials exhibited in the museum.
Of meteors, no less than 400 falls
are represented. Of ores there are
many varieties, especially in man-
ganese. In fossils there is valu-
able Cretaceous material, inclu-
ding the types of Blanford ; among
late acquisitions there is a wonder-
ful specimen of Hlephas antiquus
(namadicus). The fossil mam-
mals from the Sewalik Hills near
Simla are also preserved in the
Fre. 10. CALCUTTA. A CASEIN THE REPTILE
GALLERY.
NOTES ON ASIATIC MUSEUMS 493
gallery of paleontology, but they fail to impress a visitor who has seen
the associated remains of late Tertiary mammals in other museums.
LAHORE
The museum at Lahore is known to most foreigners as the “ wonder-
house” of Kipling, and in front of its door stands the ancient cannon
with its memories of Kim and his lama. Although intended to rep-
resent the natural sciences as well as the arts, this museum need
hardly be referred to in the former regard, for its specimens are few
and poorly displayed. In its materials for the study of art, however,
it ranks among the foremost in the east. Its predecessor was a school
of arts, founded as a memorial to the Viceroy, Lord Mayo, and carried
out during the early seventies, under its first principal and curator,
Mr. J. Lockwood Kipling (1875-92). The development of the pres-
ent museum then came about as a result of the Victorian jubilee. A
general subscription secured the necessary funds, and the corner-stone
of the present building (Fig. 11) was laid by Prince Victor in Feb-
ruary, 1890, and its collections were opened to the public two years
later. The design was furnished by Mr. Lockwood Kipling in coop-
eration with the Indian architect Bryam Singh.
As in the majority of the Indian museums, the native style has been
as closely followed as museum needs would permit, and the tall galleries
and massive doorways (Fig. 14) leave pleasant impressions in the
Fic. 11. LAHORE. THE MUSEUM,
THE HALL OF GR#&CO-
BACTRIAN SCULPTURE.
Fic. 12. LAHORE.
POPULAR SCIENCE MONTHLY
visitor’s mind. The exhibit space
includes about 28,000 square feet
and the galleries are 45 feet high.
As already noted, the museum is
interesting in its art exhibits, espe-
cially in its Greeco-Bactrian sculp-
tures, for these, as is well known,
played a most important part in
the early art of northern India.
This collection, occupying a special
gallery 100 feet in length (Figs. 12
and 13), was brought together in
the northwest provinces during the
early seventies, and is unique. ‘To
be mentioned also are the collec-
tions of carved wood, musical in-
struments, Hindu portraits, inclu-
ding a series of the Singh, Hindu
drawings, many Afghan documents,
and technical exhibits decidedly
modern in museum technique, illus-
trating, for example, the arts of the Punjaub, glass making, lac turning,
leather work, ete.
In connection with these there are models of local
industries cleverly carried out in terra-cotta by native artists. One may
mention also a remarkable series
of Madras curtains elaborately
stamped with religious ceremonies
and personages. The present ad-
ministration of the art school and
museum is in the hands of Mr.
Percy Brown, artist and archeolo-
gist, well known for his studies on
Greco-Bactrian art. The museum
is now affiliated with the Asiatic
Society of Bengal, with the Geolog-
ical Survey of India and with the
Forestry Commission. As an echo
of Indian social
hears that the museum has been
conditions one
opened one day a month for Hindu
women, women attendants then
taking charge of the galleries. The
museum is popular, and the attend-
ance averages over 1,000 a day.
DETAIL IN HALL OF
LAHORE.
SCULPTURE.
Fig. 13.
NOTES ON ASIATIC MUSEUMS
Fig. 14. LAHORE. THE HALL OF NATIVE ARTS.
Fic. 15 JAIpuR. HALL OF METAL WORK.
495
‘WONASOY AHL ‘wOdIve ‘OT ‘DIA
NOTES ON ASIATIC MUSEUMS 497
JAIPUR
Jaipur may be mentioned, finally, as furnishing the best type of a
museum supported by a native prince—in the present case by the
reigning maharajah, Sir Sawdi Madho Singh. It is an imposing
monument to this ruler’s modernness, and it has already borne inter-
esting fruit in developing and bettering the many art-industries of
Jaipur.
The building is by no means a small one—at least two hundred feet
in length. It stands in the public gardens, an elaborate structure in
Indo-Saracenic style, with shaded balconies and corridors, and with
numerous courtyards cooled by plants and fountains, Fig. 16. Its
scientific collection is small, limited to models and specimens of minor
interest. But in modern and semi-modern art objects, in metal, stone,
wood or textile, the present museum is, I believe, unsurpassed. Espe-
cially beautiful are the examples of metal work, Fig. 15, many of
which are the family treasures of the maharajah—gun-metal and silver
bidri work, damaskeens from Kashmir, silver repoussé from Trichin-
opoly and Ceylon, articulated objects in silver from Bengal, silver
figures from Mathura, enamels in gold from Jaipur, in silver from
Multan, brasses numberless, and a bewildering series of jewelry from
all parts of India. Nowhere can one receive a more illuminating
impression of the decorative possibilities in native art. An excellent
reference, by the way, is the beautifully illustrated handbook of the
museum prepared by its honorary secretary, Colonel Hendley (1895).
VOL. LXXI.—32.
498 POPULAR SCIENCE MONTHLY
THE PLACE OF LINNAIUS IN THE HISTORY
OF SCIENCE?
By PrRoFEssoR ARTHUR O. LOVEJOY
WASHINGTON UNIVERSITY, ST. LOUIS
(ice recent celebrations of the bicentenary of Linneus’s birth had
one sort of appropriateness in somewhat higher degree than is
usual in such commemorations: they helped pay the debt of posterity
to one of the great figures of the history of science in the currency that
he had especially valued. For Linnzus had very markedly the last
infirmity of noble mind. Famam extendere factis was his chosen
device, which he often prints, with a pride justified only by the event,
upon the title-pages of his books; and his biographers are at one in
emphasizing the intensity of his desire for fame. It was, indeed, the
solid and enduring fame of the productive scholar that he sought, not
the applause of the groundlings; his ambition was to link his name
to some lasting and imposing part of the ever-enlarging fabric of
organized knowledge, and thereby to take rank among the acknowl-
edged masters of those who know. That this ambition, large as it was,
has been more than fulfilled, is sufficiently evidenced by the world-
wide commemoration of this anniversary of his birth—even in cities of
the western continent which were themselves non-existent when he
came into the world. No naturalist of his century, and few natural-
ists of any period, have so universal a popular reputation, or are, by so
nearly common consent, given a place among the immortals not far
removed from Copernicus, Galileo, Descartes, Leibniz and Newton—to
mention only his predecessors. Yet, when seriously scrutinized, Lin-
neeus’s position in the history of science is a peculiar one. With his
name there is commonly associated no epoch-making hypothesis, not a
single important discovery, not one fundamental law or generalization,
in any branch of science. The forty years of his active life constitute
a period prolific in fruitful hypotheses and signalized by the original
enunciation of a number of valid generalizations of the first order of
importance ; of none of these was he the author. To go no farther than
the biological sciences which Linneus professed: Before 1750, Dau-
benton and Buffon had begun to establish the new science of com-
parative anatomy and were making known the striking homologies
which run through the structure of all species of vertebrates; between
* Revision of a paper read before the Academy of Science of St. Louis at
its celebration of the two hundredth anniversary of the birth of Linneus.
LINNAUS 499
1745 and 1751 Maupertuis had promulgated, and defended with effect-
ive arguments, the theory of the transformation of species; in phys-
iology, the significant fact of the independent irritability of muscle was
discovered by Haller in 1757; in embryology, the doctrine of epigenesis
was revived and finally established by Caspar Friedrich Wolff in 1759.
As for the science of botany, the foundations had been laid, and the
general outlines and principles which were to continue to rule during
Linnzus’s time had been established by the end of the preceding cen-
tury. The founder of modern scientific botany is Cesalpino (1583).
In microscopic plant anatomy and histology, the investigations and de-
scriptions which were to underlie the science for something like a century
had been made before Linneus’s birth by Grew, Malpighi, Leeuwenhoek.
In plant physiology, the réle of the sap had been studied by Malpighi,
and the fundamental facts made clear by Hales in his “ Vegetable
Staticks,’” 1727; the function of pollen in the fecundation of seeds had
been shown by Camerarius before the end of the seventeenth century ;
the existence of the sexual distinction in plants had been insisted upon
by a long succession of botanists, English, German, Italian and French;
and during Linneus’s lifetime the physiological réle of leaves was being
made clear (so far as the condition of chemistry at the time permitted)
by the philosopher Christian Wolff? and by Bonnet.®
Not only is all this true, but it is also a fact that Linneus has been
not absolutely unfairly represented, by one of the historians of modern
science, as an obstacle to the scientific progress of his time. President
White, in his “ Warfare of Science and Theology,” after speaking of
certain anticipations of nineteenth century conceptions by DeMaillet,
Robinet and Bonnet, remarks:
In the second half of the eighteenth century a great barrier was thrown
across this current—the authority of Linneus. . . . The atmosphere in which
he lived and moved and had his being was saturated with biblical theology, and
this permeated all his thinking.
Yet, though in the intellectual movement of his time Linnezus was
an extreme conservative, if not something of an obscurantist; though
he was far surpassed by several of his contemporaries in that kind of
insight and constructive power which leads to the discovery of the
great general laws of nature; and though the heavy pioneer work even
in his favorite science had been done before his time by the great
investigators of the end of the seventeenth century—though all this is
the case, none of these others equals Linneus in popular repute or in
accepted standing in the history of science. I can not say that I think
this altogether just, though if it be less than just, the proper inference
2“ Entdeckung der wahren Ursache von der Vermehrung des Getreydes,”
1718. Cf. also his “ Verniinftige Gedanken von dem Gebrauche der Theile in
Menschen, Thieren und Pflanzen,” 1725, Pt. II., chap. 5.
3“ Récherches sur l’usage des feuilles,” 1754.
500 POPULAR SCIENCE MONTHLY
is not that we should praise Linneus less, but some of the others more.
I have, however, mentioned these things, not for the sake of measuring
out Linnzus’s glory with a hopeless attempt at exact distributive justice,
but for the sake of defining more precisely, and in terms of explicit
contrast—which is the only illuminating way of defining—the nature
and limits of Linneus’s contribution to the evolution of the sciences.
He was the one naturalist of first eminence whose work lay entirely, or
almost entirely, within the sphere of descriptive and classificatory sci-
ence. His réle is precisely described by the term which he himself em-
ployed; he was not the originator of, nor a great discoverer in, botany,
but he was the “reformer” of that science, reformator botanices, and
in a less degree, of zoology. And in using this term to describe his
work, the emphasis should be upon the “form.” He was, in other
words, an unsurpassed organizer, both of scientific material and of
scientific research; he introduced form and order, clearness and pre-
cision, simple definitions and plain delimitations of boundaries, into
sciences previously more or less chaotic or confused or impeded with
cumbrous and inappropriate categories and terminology.
This reformation was the result of the three improvements effec-
tually introduced by Linnzus and indissolubly associated with his
name. ‘The first, which seemed the most impressive and did most to
establish his fame among his contemporaries and for several genera-
tions thereafter, was really the least permanent and the least valuable
of his contributions: this was the introduction of a new artificial sys-
tem of classification, based, in the botanical field, upon the differences
of the sexual organs of plants. The second was the introduction of the
binomial nomenclature, the system of so-called “trivial” names,
which put a final end to the hopeless length and complexity of botanical
and zoological specific names, and sharply differentiated the naming of
organisms from the description of them. The third and, I suppose,
the most useful as well as most durable of all of Linneus’s improve-
ments, was the establishment of a new descriptive terminology in
botany, the drawing up of a set of terms, each with clearly defined
meaning, for designating concisely the distinguishable parts and organs
of plants, and the several types of form of which each part is sus-
ceptible. By these means Linneus imposed order and harmony upon
a realm that had hitherto suffered much from anarchy; he gave a com-
mon language to those who tilled its fields, and provided them with
working tools of an unprecedented simplicity and convenience. And —
where he thus introduced order he also, as a natural consequence, intro-
duced abundance. Both directly and indirectly Linneus immensely
augmented the store of concrete botanical information. The science
thus simplified and systematized and given a convenient means of ex-
pression became vastly more attractive and interesting; in particular,
LINNAUS 501
it came to be a field in which many minds, of all orders of ability,
could do useful work, and could make their work dovetail into the
work of others in such wise that each was conscious of having con-
tributed a definite part to an immense and impressive edifice of an
intelligible outline and design. Alike by the superior convenience of
his classification, nomenclature and terminology, by the force and
serious enthusiasm of his personality, and by the example of his ad-
mirably exact observation, Linneus stimulated a prodigious amount of
ardent and careful botanical and zoological research on the part of
others. His own pupils went out, literally by the score, not only over
Europe, but to the uttermost parts of the earth, to collect new species
and study geographical distribution. A number of these young en-
thusiasts, whose names are honorably recorded by one of Linnzus’s
biographers, lost their lives in these expeditions. The eight volumes of
Linneus’s “ Ameenitates Academice” contain 186 dissertations by
almost as many of his pupils, the subject and treatment being in
nearly every case suggested, and the results corrected, by Linnzus him-
self; most of these contain contributions of valuable—and many con-
tain what were in their day highly original—botanical, zoological or
mineralogical data. Nor was the effect of Linnzus’s simplification and
systematization of botany limited to the setting of other and younger
men of science to work. His efforts also notably increased the general
vogue of botany, as a result of which it long enjoyed an exceptional
popularity and an unusual amplitude of endowment among the sciences.
This aspect of Linneus’s work is effectively presented—all the more
effectively for a considerable touch of rhetorical exaggeration—by
Magdeleine de Saint-Agy in his continuation of Cuvier’s “ Histoire des
Sciences Naturelles” (1845); the passage illustrates so well, if not
precisely, what Linneus did, at least what he had the credit of doing,
that I venture to translate it.
The influence of Linneus, says this historian, was not limited to the in-
vestigations and voyages which he caused to be made; in imitation of him,
similar voyages and investigations were ordered made by several states. Sweden,
being a small and poor country, had no great means for multiplying such expedi-
tions; but England, France and Russia had them carried out in great numbers;
and Linnzus during the last years of his life had the pleasure, as Condorcet puts
it, of seeing nature interrogated on all sides in his name. There was no class
of people—even to princes—who did not busy themselves with natural history,
and above all with botany—since this science presents none of the difficulties
of anatomy and since the method of Linneus is of a simplicity which renders
it accessible to everybody . . . Botany thus became universally familiar. Those
who were fond of gardening multiplied the varieties of their plants, since they
could now know the names of them without being Latin scholars, and since
gardeners could now understand one another when referring to the plants they
cultivated. All gardens, both botanical and pleasure gardens, were filled with
a multitude of plants which rich folk had brought at great expense from foreign
502 POPULAR SCIENCE MONTHLY
lands. The taste for botany dominated all minds; kings became botanists, prop-
erly so called, and were desirous of having their own botanical gardens. Louis
XV. had the garden of Trianon; George III., that of Kew; Francis I., emperor
of Austria, that of Schoenbrunn. These three princes were useful to the science
by their gardens and by the emulation which they occasioned; but it is after
all, to the happy discovery of a dual nomenclature that these advances were
primarily due. From the moment when common names were to be had, corre-
sponding in all parts of the globe, collections were zealously made; museums
were enriched; and it was not difficult to multiply researches, now that the
science was within everybody’s reach. . . . Such is the prodigious impulsion
that Linneus gave to the science of natural history.
Yet it is important, in the interest of historical truth, to point out
that even in these things which constitute his peculiar work—speci-
fically, in his reformation in taxonomy, nomenclature and terminology
—Linneus was in no respect a pioneer or an originator. It was his
good fortune to be able to develop and carry through suggestions and
outlines of procedure which had been made by his seventeenth-century
precursors, and to exploit to the utmost an abundant legacy of botanical
knowledge, methodological ideas, and botanical interest which had
come down to his generation. Nothing, indeed, could be farther from
the truth than the notion which appears to have wide popular currency,
that there was little botanical study or knowledge worth mentioning
before Linnzeus. It is, on the contrary, eminently a case where
vixerunt fortes ante Agamemnona. Any who suppose sixteenth and
seventeenth century botany to be a negligible quantity will find it in-
structive to examine the shelves of the hbrary of the Paris Jardin des
Plantes; or to remember that Jean Bauhin’s “ Historia universalis
plantarum ” (1660), consisting of forty books, contained descriptions
of some 5,000 plants, with 3,500 figures, and cost the equivalent of
about $18,000 to produce—or that, a little later, Ray’s “ Historia
plantarum generalis” gave a classified arrangement and description of
11,700 plants. And while Linneeus assuredly gave, as has been said,
a great impulsion to the popular and fashionable interest in botany and
zoology, it was an interest which was extremely well developed before
his time—which, in fact, made his own work and his own contemporary
fame possible. It was not through his influence first that states and
monarchs learned the propriety of establishing botanical gardens. The
Jardin royal du Louvre, for example, was established by Henri IV.
in 1590, and the Jardin des Plantes was founded in 1626. By the
middle of the seventeenth century both public and private gardens,
often with scientific establishments connected with them, were becom-
ing fairly common. And, as I have said, the particular reforms
through which chiefly Linnzus achieved his results were essentially not
discoveries nor innovations of his own. It will be profitable to note
* These figures are taken from Hoefer’s “Histoire de la Botanique,” 1872.
LINNAUS 203
briefly the earlier history of the ideas involved in each of these three
reforms.
First, then, concerning classification. Linneus’s great precursors
in this field were Cesalpino,®> Ray and Tournefort. Cesalpino was a
sixteenth-century enthusiast of the revival of the Peripatetic philos-
ophy; and it was largely the influence of a fresh study of Aristotle’s
logic and metaphysics which led him to condemn all the then cus-
tomary ways of classifying and naming plants—by their medicinal or
other practical properties, the localities in which they are found, and
the like—as being based upon mere “ accidentia,’ and to insist upon
the necessity of an orderly arrangement by genera and species founded
upon the presence of common visible characters.* In his selection of
the characters by reference to which the primary division into genera
is to be made, he is guided by considerations drawn from the Peripa-
tetic metaphysics. The essential character of any “substance” con-
sists in its “end” or “function” (opus). The distinctive function
of the vegetative soul is twofold, nutrition and “ the generating of its
own like”; the latter is the higher, and it also presents more numerous
and sensible points of variation in different plants. It follows that
plants should be divided into genera according to the differences in
form and arrangement of their “ fruit-producing” organs (ex modo
fructificandt, ex proprus quae fructificationts gratia data sunt). With
this as a starting-point, Cesalpino proceeds to a series of successive
divisions in which 840 species find place. MRay’s contributions to tax-
onomy had less success and influence than those of Cesalpino and of
Tournefort, and are therefore historically less significant ; but concern-
ing their intrinsic merit it is worth while quoting the recently expressed
opinion of a living botanist of high authority, who places Ray’ as a
taxonomist above Linneus himself. It was the English naturalist,
says M. Bonnier,’ who must be regarded as “ the true founder of the
natural method”; “he it was who first enunciated the essential prin-
ciples on which the classification of plants ought to be founded, who
made clear the difference between phanerogams and cryptogams, who
discovered the distinction between monocotyledons and dicotyledons,
who established in a rational manner the main divisions of the vegetable
kingdom.”
51519-1603. Cesalpino was a physician to Pope Clement VIII., and pro-
fessor of materia medica and director of the botanical garden at Pisa. He was
the original discoverer of the circulation of the blood; the doubts which have
been sometimes expressed whether he anticipated Harvey’s conception in its
fullness have been shown to involve the overlooking of an explicit passage in
Cesalpino’s “De Plantis” (1583): ef. Du Petit-Thouars in “ Biographie Uni-
verselle,” s. v.
*“ De Plantis” (1583), Lib. I., Cap. XIII.
7™« Historia Plantarum,” 1686.
8“ Le monde végétal,” 1907, pp. 48-9.
504 POPULAR SCIENCE MONTHLY
At a natural method Tournefort made no more attempt than did
Linneus. But of the principles and purposes of a good artificial
classification he had an entirely clear comprehension; and of such a
classification of then known plants he gave an elaborate and imposing
exemplification. Of what a “natural system ” would be, if one could
attain to it, Tournefort, like his Swedish successor, had a conception
rather mystical or theological than scientific; it would be an arrange-
ment of animals and plants according to the “ natural ” or “ essential ”
species established by “the Author of Nature.” But for his actual
scheme® he recognizes plainly that the primary criteria are the prac-
tical ones of simplicity and convenience. A genus or species, for
botanical purposes, is “simply the whole group of plants that have a
character in common which essentially distinguishes them from all
others ”; and in the selection of the characters by means of which the
division is to be made we may ignore metaphysical considerations.
Tournefort observes (apparently reflecting upon Cesalpino) : “ Let no
one say that, since the sole end of nature is the production of fruit,
we ought to consider the fruit as the noblest part of the plant. The
intentions of nature are not in question here, nor yet the nobility of
the several parts; what concerns us is to find means of distinguishing
different kinds of plants with the greatest possible clearness. If the
least of their parts served this purpose better than those which are
called the noblest, it would be necessary to prefer the former.” 'Tourne-
fort’s actual classification, based upon the characters of both flowers
and fruit, realized these ideals of serviceableness, convenience and con-
sistency somewhat imperfectly. But it was the ruling one in the
science for nearly half a century; and, accompanied as it was by careful
descriptions of an immense number of species, it furnished a model
upon which Linnzus needed only to improve.
The Swedish naturalist’s simplification of nomenclature was not
only approximated, but acually anticipated, by at least one of his
predecessors. As Professor Underwood has pointed out, the binomial
system of naming plants was used by Cornut in his “ Canadensis Plan-
tarum Historia” as early as 1635.1° Later Tournefort, a botanist of
greater eminence and influence, though he followed this example only
partially, insisted emphatically upon the need for a reform and sim-
plification of nomenclature. So far as the names of genera are con-
cerned, he observes that “one ought to make a very great difference
between naming plants and describing them”; he remarks that “ noth-
ing is so unfavorable to the reformation of botany as the habit which
°* Klemens de la Botanique,”’ 1694; the Latin version of this, “ Institu-
tiones Rei Herbarie,’’ with some alterations, appeared in 1700.
* Underwood in Torreya, October, 1903, and in PopuLaR Scrence Monruty,
June, 1907. A brief and often binomial nomenclature is ascribed by Bonnier
to Belon (d. 1574), whose work I have not seen.
LINNAUS 5°05
has come to prevail of judging of the nature of plants from the ety-
mology of their names,” and recommends that generic names be formed
exclusively “ out of words that have of themselves no meaning”; and
he ridicules the long descriptive names then used by many botanists.1*
The designations of species, however, he considers, should consist of the
name of the genus plus a clear descriptive indication of the differentia
of the species; and since the latter can not always be expressed by a
single word, Tournefort does not employ a uniformly binomial nomen-
clature. But from the reforms already recommended and adopted
by the great botanist of the preceding generation to the Linnean sys-
tem of “ trivial ” specific names, the step was easy and obvious.
Again, in providing botany with an appropriate set of terms for
the concise indication of the parts and organs of plants, Linnzus was
merely following the suggestion and extending the work of another
great seventeenth-century reformer in science. It was Joachim Jung?”
—a naturalist whose intellectual force so impressed his contemporaries
that Leibniz did not hesitate to compare him to Aristotle, or Comenius
to liken him to Euclid—who was the father of comparative morphology
in botany, who introduced into the study of the characters of plants
real thoroughness and precision, who insisted upon the need for a sys-
tem of clear, unambiguous organographic terms, and who himself
devised and introduced a number of the terms still in use. His “ Isa-
goge Phytoscopica ” (1622) was wholly devoted to urging and exempli-
fying this reform; all the principal parts of plants are distinguished
and defined with admirable clearness, their possible variations of form
noted, and new and explicit names for these variations proposed. Jung
seems,** for example, to have been the first to employ the terms petiole
or pedicule and perianth; to classify the arrangements of leaflets as
digitate and pinnate, and to subdivide the latter sort into paripinnate
and imparipinnate; to speak of the disposition of leaves as opposed,
alternate, triangulate, ete. The descriptive terminology of botany has,
of course, since expanded immensely; but the credit for the origination
of the language of that science must unquestionably be assigned to
Jung and not to Linneus.
It still remains true, however, that Linneus united these three
reforms in a single system; that he carried each of them farther than
had any of his predecessors; and that by the force of his personality
he was able to gain for them a general acceptance which they had
hitherto lacked. Though we must, therefore, make some deduction
1“ Klemens de Botanique,”’ 1694, pp. 14, 36, 38.
“Born in Liibeck, 1587, died at Hamburg, 1657. He published compara-
tively little, and his principal botanical works were brought out by friends after
his death.
%The assertion that Jung was not anticipated in the use of these terms
rests upon the authority of Hoefer, “ Hist. de la Botanique.”
506 POPULAR SCIENCE MONTHLY
from the current view of the originality of Linneus’s work as reformer
and organizer of botanical knowledge, we need not on that account
greatly lower our estimate of its actual importance in the history of
science. And yet we must, to get a just picture, always remember the
character, as well as the magnitude, of that work; we must remember
that it was, all but exclusively, form, system, nomenclature and specific
observations that Linneus contributed to the biological sciences, rather
than fundamental discoveries, pregnant hypotheses or illuminating
general ideas. Even in the presence of the impressive picture of the
solid results of Linnzeus’s life-work drawn by the French historian of
these sciences, one can not help recalling a caustic remark—which I
have already elsewhere cited—of Linnzus’s contemporary, Maupertuis,
then president of the Berlin Academy of Sciences. Maupertuis spoke of
zoology ; but we may generalize his observation: “ All these treatises on
plants and animals which we as yet have,” he says (about 1750), “are
—even the most methodical of them—no better than pictures pretty to
look at; in order to make of natural history a veritable science, natural-
ists must apply themselves to researches which can make us acquainted
not simply with the form of this or that organism, but with the gen-
eral processes of nature in the production of organisms and the con-
servation of them.” 'Towards making natural history a veritable science
in this sense Linnezus did relatively little; but it is not quite true to
say that he did nothing at all. Towards the discovery or the estab-
lishment of two generalized laws respecting the processes of nature in
the production and the perpetuation of vegetal organisms Linnzus
made some contribution; and of these something ought briefly to be
said, the more because they are often neglected in the accounts of
Linneus’s work.
1. Although, as has been remarked, the fact of sexuality in plants
had been noted by a number of great naturalists before 1718, the doc-
trine was not, in Linneus’s youth, at all generally accepted. It was
possible at the beginning of the eighteenth century for a botanist so
eminent as Tournefort to combat and ridicule the idea; and for the
Imperial Academy of Sciences of St. Petersburg, so late as 1759, to
offer a prize for the best argument either for or against the doctrine
of sex in vegetables. Linnaeus gave the weight of his authority, as
well as of some new experimental evidence, to the affirmative of this
question. By him the fact may be said to have been finally established ;
and by his sexual system of classification the idea was made a familiar
and fundamental common-place of even popular botanical knowledge.
2. By his doctrine of the “ Prolepsis Plantarum” and “ Meta-
morphosis Plantarum ”—which one of his disciples declared to be “ the
most subtle discovery of any which can be put forward by the investi-
gators of nature in our age,” but which there lacks space to set forth
LINNAUS 507
in its details—Linneus began that theoretical reduction of the several
parts of a plant to modifications, under special conditions, of a few
simple organs, which Goethe was to elaborate and carry much farther
in his “ Metamorphose der Pflanzen” (1790). Goethe makes due
acknowledgment of his debt to Linneus (who was his constant study
in his early years**) in that treatise, the place of which in the history
of botany is well known. Contemporary botanists would, I suppose,
incline to question whether this theory has done greater service or harm
to the progress of their science. Its chief value lay in its tendency to
suggest the idea of the unity of type—and eventually the idea of the
common derivation through processes of transformation—of different
species. Both of these ideas were far from the mind of Linneus; with
him the theory took the form only of the purely specific doctrine of the
interchangeability of leaf and flower under varying conditions of nour-
ishment, or at different phases of the individual plant’s growth.
In these two instances, then, Linneus made some contribution to
the unification, as well as to the augmentation, of knowledge. Yet his
lack of any penetrating insight into the larger relations of biological
facts and the absence in him of any sound grasp of scientific method,
disqualified him from taking a place among those who have materially
enriched our stock of the ideas and categories which may be used in the
interpretation of nature. His emphasis upon the static aspects of the
world of living organisms—upon the fixed characters of species—and
upon the descriptive rather than explanatory business of scientific
inquiry made his influence, on the whole, an obstacle to the develop-
ment and diffusion of those evolutional ideas which were already stir-
ring in a number of minds of his generation. His ineptitude in the
more philosophic part of the naturalist’s work could not be better
shown than in the one treatise in which he attempts a broad philo-
sophical view and a wide correlation of organic phenomena. ‘This
writing, “ Giconomia Nature,” which was greatly admired by his con-
temporaries, points out in how diverse and complicated ways organisms of
different species interact with one another, and are reciprocally adapted
to one another, as wellas to the conditions of survival in their environ-
ment. In dilating upon this Linneus may be said to call attention,
more than a century before Darwin, to the reality and importance in
nature of the struggle for existence between species; for he shows how
every kind of organism has its natural enemies, with which it keeps up
* The poet himself wrote in his “ Geschichte meines botanischen Studiums ”
(1817): “ After Shakespeare and Spinoza, it was Linneus who had the greatest
influence upon me—chiefly, indeed, by the opposition that he provoked. For
when I strove to make my own his sharp, clear-cut divisions and his apt and
serviceable but often arbitrary laws, an inner conflict arose in me: what he
sought forcibly to hold apart, the deepest need of my nature made me wish to
bring back to unity.”
508 POPULAR SCIENCE MONTHLY
an unceasing warfare or competition, as a result of which the otherwise
excessive multiplication of each kind is prevented and the equilibrium
of nature is preserved. But all these just observations lead Linneus
to nothing more useful to science than the quam pulchre! We are
invited to see in the arrangement whereby the lion saves the lamb from
the Malthusian inconvenience of over-multiplication simply an evi-
dence of design in nature. It never occurs to the great naturalist to
consider that, as Maupertuis put it, “since only those creatures could
survive in whose organization a certain degree of adaptation was pres-
ent, there is nothing extraordinary in the fact that such adaptation is
found in all the species that now exist.” Looking upon the same gen-
eral class of facts as those which were to be considered by Wallace and
Darwin, Linneus finds in them nothing but the occasion for the whole-
sale introduction of teleological considerations, in place of causal
explanations. In setting the example of such a proceeding, Linnzus
certainly did much to hold biology back from its proper methods and
its proper problems. In this, as in his general failure to take a philo-
sophie view of his subject, his mental attitude was peculiarly uncon-
genial to the greatest intellect—if not the greatest botanist—of those
whom he largely influenced. Goethe kept up a lifelong protest against
all purely descriptive science and all introduction of teleological notions
into the explanation of natural phenomena. And it is from Goethe in
his old age that I may, in closing, quote a somewhat severe, but not
unilluminating, remark upon the master of the poet’s early botanical
studies ;1° since it contains a sort of philosophical pun, it is necessary
to give it in the German:
Eine zwar niedere doch schon ideelle Unternehmung des Menschen, ist das
Zihlen, wodurch im gemeinen Leben so vieles verrichtet wird; die grosse
Bequemlichkeit jedoch, die allgemeine Fasslichkeit und Erreichbarkeit giebt
dem Ordnen auch in den Wissenschaften Eingang und Beifall. Das Linnésche
System erlangte eben durch diese Gemeinheit seine Allgemeinheit; doch wider-
strebte es einer héheren Einsicht mehr, als dass es solche férderte.
Yet if Linneus was not qualified to lead biology into the promised
land of that “higher insight ”—if he even somewhat delayed its prog-
ress thither—it must still be said that he left all the sciences with
which he dealt incomparably better provisioned for that progress than
they would have been without his work. He left to them an intensified
ardor for the scrutiny of all the phenomena of nature, a better com-
mand of their own materials, and a greatly enriched and better ordered
store of those concrete facts out of which, in time, scientific generaliza-
tions often almost spontaneously develop, and by which they must
always eventually be tested.
8 « Aphoristisches,” Weimar-Ausg., Teil II., Bd. 6, §356 (1829); cited by
Wasielewski in his “ Goethe und die Descendenzlehre.”
AGE, GROWTH AND DEATH 509
THE PROBLEM OF AGE, GROWTH AND DEATH
By CHARLES SEDGWICK MINOT, LL.D., D.Sc.
JAMES STILLMAN PROFESSOR OF COMPARATIVE ANATOMY, HARVARD MEDICAL SCHOOL
VI. THe Four Laws or AGE
Ladies and Gentlemen: I have referred in these lectures repeatedly
to the cell and its two component parts, the nucleus and the proto-
plasm. To-night I shall have only a few references to make directly
to these, and shall pass on for the latter part of the hour to another
class of considerations bearing upon the problem of age. Before we
turn to these new considerations, however, I wish to say a few words
by way of recapitulation concerning the changes in the cells as corre-
sponding to age. Cells, as you know from what I have told you,
undergo in the body for the greater part a progressive change which
we call their differentiation. We may say that there are four kinds
of cells for purposes of an elementary classification to be used in a
simple exposition like the present. The first kind are those cells of
the young type, in which the protoplasm is simple, and shows as yet
no trace of differentiation. These cells are capable of rapid multipli-
cation, and some of them are found still persisting in various parts
of the adult body, and serve to maintain the growth of the body in its
mature stage. Another class of cells presents to us the curious spectacle
of a partial differentiation; such are the muscle fibers by which we
accomplish our voluntary movements. These fibers consisted originally
only of protoplasm with the appropriate nuclei, but, as they are differen-
tiated, part of the protoplasm changes into contractile substance.
Another part remains pure protoplasm unaltered. If now the mus-
cular or contractile portion of the fiber be destroyed, the undifferen-
tiated part of the protoplasm then shows that it has still the power of
growth. It has only been held back by the condition of organization,
and we see in the regeneration of these fibers evidence of the fact that
so long as the protoplasm is undifferentiated it has the power of
growth, which, however, does not reveal itself unless an opportunity is
afforded. Third, we come to the cells which are moderately differen-
tiated; such, for instance, are the cells of the liver, and, if for any
reason a portion of the liver be injured by accident or disease, we find
that these partially differentiated cells reveal at once that they have a
limited power of growth still left. If we pass on to the fourth class,
that in which differentiation is carried to the highest extreme, we find
that the cells do not have the power of multiplication. Such are the
POPULAR SCIENCE MONTHLY
510
nerve cells by which the higher functions of the body are carried on.
They represent the extreme of cellular differentiation, and almost never
do we see these cells multiplying after the differentiation is accom-
plished. Presented in this form, we then recognize, it seems to me
clearly, the effect of differentiation upon the growth of cells. The facts
are clear as to their meaning.
We can, however, proceed a little farther than this, because we can
actually determine, approximately at least, the rate at which cells mul-
tiply, and that we can do by means of determining the mitotic index.
The mitotic index is the number of cells to be found at any given
moment in the active process of division out of a total of one thousand
cells.
May I pause a moment to recall this picture to you and ask you to
notice at this point the curious darker spot which represents a nucleus
in process of division? You will see it would
be easy in such a preparation as this to count
the nuclei one by one until one had got up toa
a ® thousand, and to record, as one went along,
mong ee 5) how many of the nuclei are in process of divi-
SS a sion, for the nucleus in division is easily recog-
oF eo 4 j nized. This process of division is named
mitosis: the figure which the nucleus presents
while it is undergoing division we call a mi-
totic figure. Counting the dividing nuclei, we
-—+ may determine that in a thousand cells there
are a given number which have nuclei in proc-
ess of division, and such a number I propose to
Fig. 61. PORTION OF THE all “ the mitotic index.” I wish now only to
OUTER WALL OF A PRIMITIVE
MUSCULAR SEGMENT OF A CAT
EMBRYO OF 4.6 MM. Harvard
Embryological Collection
Series 398, section 115, The
resting nuclei are oval, pale
and granular. The dividing
or mitotic nuclei, of which
there are three, are dark, ir-
Tegular in outline and show
the chromosomes. In this
ease the dividing nuclei all
lie near the inner surface of
the wall. The picture illu-
strates the ease with which
mitotic figures may be recog-
nized.
only 10.
There has already been a great reduction.
call to you attention this picture because it
enables me to illustrate before you the method
of measuring the mitotic index.
In the rabbit embryo at seven and one half
days, I have found by actual count that there
are in the outer layer of cells, known techni-
cally as the ectoderm, 18 of these divisions per
thousand. In the middle layer, technically the
mesoderm, 17, and in the inner layer, the ento-
derm, 18. At ten days we find the number al-
ready reduced, and the figures are, respectively,
14, 13 and 15, and for the cells of the blood
In the next phase
of development (rabbit embryo of thirteen days), we find, however,
that the parts are growing irregularly, some faster, some slower. We
note that wherever a trace of differentiation has occurred, the rate of
growth is diminished: where that differentiation does not show itself, the
AGH, GROWTH AND DEATH SEE
rate of growth may even increase in order to acquire a certain special de-
velopment of a particular part. So that instead of uniformity of values
for the mitotic index, we get a great variety. But, nevertheless, the
general decline can be demonstrated by the figures. In the spinal cord
the index is 11, in the general connective tissue of the body 10; for the
cells of the liver 11; in the outside layer of the skin 10; in the excretory
organ 6; 1n the tissue which forms the center of the limb also 6. There
has, then, been a rapid decline in the rate of cell multiplication just in
this period when differentiation is going on. This is, so far as I know,
an entirely new line of research. The counting of a thousand cells is
not a thing to be done very rapidly ; it must be undertaken with patience,
care, and requires time. It has not, I regret to say, been possible for
me yet to extend the number of these counts beyond those I have given
you, but it is easy to say that in the yet more differentiated state, the
number of cells in division is constantly lessened, and it is only a ques-
tion of counting to determine the mitotic index accurately. That there
is a further diminution beyond that which the mitotic indices I have
demonstrated to you represent is perfectly certain. I only regret that
I am not able to give you exact numerical values.
I wish very much that my time permitted me to branch off into
certain topics intimately associated with the general theme we have been
considering together on these successive evenings, but we can only
allude to a few of these. The first collateral subject on which I wish
to speak to you briefly is that which we call the law of genetic restric-
tion, which means that after a cell has progressed and is differentiated
a certain distance, its fate is by so much determined. It may from that
pass on, turn in one direction or another, always progressing, going
onward in its cytomorphosis; but the general direction has been pre-
scribed, and the possibilities of that cell as it progresses in its develop-
ment become more and more restricted. For instance, the cells which
are set apart to form the central nervous system after they are so set
apart can not form any other kind of tissue. After the nervous system
is separated in the progress of development from the rest of the body,
its cells may become either nerve cells proper or supporting cells
(neuroglia), which latter never acquire the nervous character proper,
but serve to uphold and keep in place the true nervous elements. They
represent the skeleton of the central nervous system. After the cells
of the nervous system are separated into these two fundamental classes
they can not change. A cell forming a part of the supporting frame-
work of the brain can not become a nerve cell; and a nerve cell can not
become a supporting cell. The destiny of them becomes more and
more fixed, their future possibilities more and more limited, as their
cytomorphosis goes on.
The law of genetic restriction has a very important bearing upon
questions of disease. When disease occurs, the cells of the body offer
512 POPULAR SCIENCE MONTHLY
to us two kinds of spectacles. Sometimes we see that the cells causing
the diseased condition are more or less of the sort which naturally be-
long in the body; that they are present where they do not belong, or
they are present where they ought to be, but in excessive quantity.
There is a kind of tumor which we call a bony tumor. It consists of
bone cells such as are naturally present in the body, but that which
makes this growth of bone a tumor is its abnormal dimensions, or per-
haps its being altogether in the wrong place. The second sort of
pathological alteration, which I had in mind, is that in which the cells
really change their character. Now, the young cells are those which
can change most; in which the genetic restriction has least come into
play ; and accordingly we find that a large number of dangerous, morbid
growths, tumors, arise from cells of the young type, and these cells,
having an extreme power of multiplication, grow rapidly, and they may
assume a special character of their own; their genetic restriction has
not gone so far that all their possibilities of change in the way of differ-
entiation have been fixed; there is a certain range of possibilities still
open to them, and they may turn in one direction or the other. Hence
there may be pathological growths of a character not normally present
in the body. It seems to me, so far as my knowledge of this subject
enables me to judge, to be true that all such pathological growths de-
pend upon the presence of comparatively young and undifferentiated
cells being turned into a new direction. The problem of normal
development and of abnormal structure is one and the same. Both the
embryologist and the anatomist, on the one hand, and the pathologist
and the clinician on the other, deal ever with these questions of differ-
entiation, and practically with no others. All that occurs in the
body is the result of various differentiations, and whether we call the
state of that body normal or pathological matters little; still the cause
of it is the differentiation of the parts.
The second of the collateral topics which I should like briefly to
allude to is another branch of the study of senescence. The fact was
first emphasized by the late Professor Alpheus Hyatt that in many
animals there exist parts formed in an early stage and thereafter never
lost. The chambered nautilus is an animal of this kind. The inner-
most chamber represents the youngest shell of the nautilus, and as its
age increases, it forms a new chamber in its shell, and so yet more and
more until the coil is complete. When we examine a shell of that kind
we see permanently before us the various stages, both young and old, as
recorded in shell formation. And so too in the sea-urchin, and in
many of the common shell-fish, we find the double record, of youth and
old age, preserved permanently. This has made it possible for Pro-
fessor Hyatt and for Professor Robert T. Jackson, who has adopted a
similar guiding principle, to bring a great deal of new light into the
study of animal changes, and to attack the solution of problems which
AGE, GROWTH AND DEATH 513
without the aid of this senescent interpretation, if I may so term it,
would be utterly impossible. This is an enticing subject, and I wish
I had both time and competency to dwell upon it. But it is aside, as
you see, from the main inquiries with which we have been occupied,
for our inquiries concern chiefly the effect of cell-change upon the
properties of the body, and the correlation of cell-change with age.
A natural branch of our topic is, however, that of longevity, the
duration of life. Concerning this, we have very little that is scien-
tifically satisfactory that we can present. We know, of course, as a
fundamental principle, that every animal must live long enough to
reproduce its kind. Did that not occur, the species would of course
become extinct, and the mere fact that the species is existing proves,
of course, this simple fact—that life has lasted long enough for the
parents to produce offspring. The consideration of this fact has led
certain naturalists to the supposition that reproduction is the cause of
their termination of life; but it is not, it seems to me, at all to be so
interpreted. We know, in a general way, that large animals live longer
than small ones. The elephant is longer lived than the horse, the horse
than the mouse, the whale than the fish, the fish than the insect, and
so on through innumerable other instances. At first this seems a
promising clue, but if we think a moment longer we recognize quickly
the fact that a parrot, which is much smaller than a dog, may live
one hundred years, whereas a dog is very old at twenty. There are
insects which live for many years, like the seventeen-year locusts, and
others which live but a single year or a fraction even of one year, and
yet the long-lived and the short-lived may be of the same size. It is
evident, therefore, that size is not in itself properly a measure of the
length of life. Another supposition, which at first sounds very attract-
ive, is that which explains the duration of life by the rate of wear, of
the using up, of the wearing out, of the body. This theory has been
particularly put forward by Professor Weismann, who in his writings
calls it the Abnutzungstheorie—the theory of the wearing out of the
body. But the body does not really wear out in that sense. It goes on
performing the functions for a long time, and after each function is
performed the body is restored, and we do not find at death that the
parts have worn out. But, as we have seen, we do find at death that
there has been an extensive cytomorphosis, cell-change, and that the
living material, after having acquired its differentiation, passes now
in one part, now in another, then in a third, to a yet further stage, that
of degeneration, and the result of degeneration, or atrophy, as the case
may be, is that the living protoplasm loses its living quality and be-
comes dead material, and necessarily the functional activity ceases. We
must, it seems to me, conclude that longevity, the duration of life,
depends upon the rate of cytomorphosis. If that cytomorphosis is
VOL. LXxI.—33.
514 POPULAR SCIENCE MONTHLY
rapid, the fatal condition is reached soon; if it is slow, the fatal condi-
tion is postponed. And cytomorphosis in various species and kinds of
animals must proceed at different rates and at different speeds at
different ages. Birds grow up rapidly during their period of develop-
ment; the cell change occurs at a high speed, far higher than that
which occurs in man, probably, during his period of development. But
after the bird has acquired its mature development, it goes on almost
upon a level for a long time; the bird which becomes mature in a single
year may live for a hundred or even more. There can be during these
hundred years but a very slow rate of change. But in a mammal, a
dog or a cat, creatures of about the same bulk as some large birds,
we find that the early development is at a slower rate. The animals
take a much longer period to pass through their infancy and reach
their maturity, but after they have reached their maturity they do not
sustain themselves so long. Their later cytomorphosis occurs at a
higher speed than the bird’s. This is a field of study which we can
only recognize the existence of at present, and which needs to be ex-
plored before, to any general, or even to a special scientific, audience,
any promising hypotheses can be presented. Definite conclusions are
of course still more remote.
Next as regards death. The body begins its development from a
single cell, the number of cells rapidly increase, and they go on and
on increasing through many years. Their whole succession we may
appropriately call a cycle. Each of our bodies represents a cell cycle.
When we die, the cycle of cells gives out, and, as I have explained to
you in a previous lecture, the death which occurs at the end of the
natural period of life is the death which comes from the breaking
down of some essential thing—some essential group of members of
this cell cycle; and then the cycle is broken up. But the death is the
result of changes which have been going on through the successive
generations of cells making up this cycle. There are unicellular organ-
isms; these also die; many of them, so far as we can now determine,
never have any natural death, but there are probably others in which
natural death may occur. It is evident that the death of a unicel-
lular organism is comparable to the death of one cell in our own bodies.
It is not properly comparable to the death of the whole body, to the
ending-up of the cell cycle. Is there anything like a cell cycle among
the lower organisms? among the protozoa, as the lowest animals are
called? It has been maintained by a French investigator, by the name
of Maupas, that such a cycle does exist, that even in these low organisms
there is a cell which begins the development, and that gradually the loss
in the power of cell multiplication goes on until the cycle gives out
and has to be renewed by a rejuvenescent process, and this rejuvenating
process he thinks he has found in the so-called conjugating act of these
animals, in which there occurs a curious migration of the nucleus of
AGH, GROWTH AND DEATH 515
one individual into the cell body of another. Whether he is right or
not remains still to be determined. You will recognize, I hope, from
what I have said, that we have now some kind of measure of what con-
stitutes old and young. We can observe the difference in the propor-
tion of protoplasm and nucleus, the increase or diminution, as the case
may be, of one or the other. If it be true that there is among protozoa,
among unicellular animals, anything comparable to the gradual decline
in the growth power which occurs in us, we shall expect it to be
revealed in the condition of the cells—to see in those cells which are
old an increase in the proportion of protoplasm, and consequently a
diminution in the relative amount of nucleus. That subject is now
being investigated, and we shall probably know, within a few years at
least, something positive in this direction. At present we are reduced
to posing our question. We must wait patiently for the answer.
The scientific man has many occasions for patience. He has to
make his investigations rather where he can than where he would like
to. Certain things are accessible to our instruments and methods of
research at the present time, but other things are entirely hidden from
us and inaccessible at the present. We are indeed, more perhaps than
people in any other profession of life, the slaves of opportunity. We
must do what we can in the way of research, not always that which we
should like most to do. Perhaps a time will come when many of the
questions connected with the problems of growing old, which we can
now put, will be answered, because opportunities, which we have not
now, will exist then. Scientific research offers to its devotees some
of the purest delights which life can bring. The investigator is a
creator. Where there was nothing he brings forth something. Out of
the void and the dark, he creates knowledge, and the knowledge which
he gathers is not a precious thing for himself alone, but rather a
treasure which by being shared grows; if it is given away it loses noth-
ing of its value to the first discoverer, but acquires a different value
and a greater usefulness that it adds to the total resources of the world.
The time will come, I hope, when it will be generally understood that
the investigators and thinkers of the world are those upon whom the
world chiefly depends. I should like, indeed, to live to a time when it
will be universally recognized that the military man and the govern-
ment-maker are types, which have survived from a previous condition
of civilization, not ours; and when they will no longer be looked upon
as the heroes of mankind. In that future time those persons who
have really created our civilization will receive the recognition which is
their due. Let these thoughts dwell long in ‘your meditation, because
it is a serious problem in all our civilization to-day how to secure due
recognition of the value of thought and how to encourage it. I believe
every word spoken in support of that great recognition which is due
516 POPULAR SCIENCE MONTHLY
to the power of thought is a good word and will help forward toward
good results.
In all that I have said, you will recognize that I have spoken con-
stantly of the condition of the living material. If it is in the young
state it has one set of capacities. If it is differentiated, it has, accord-
ing to the nature of its differentiation, other kinds of capacities. We
can follow the changing structure with the microscope. We can gain
some knowledge of it by our present chemical methods. Fragmentary
as that knowledge is, nevertheless, it suffices to show to us that the con-
dition of the living material is essential and determines what the
living material can do. I should like to insist for a moment upon this
conception, because it is directly contrary to a conception of living
material which has been widely prevalent in recent years, much de-
fended and popularly presented on many different occasions. The other
theory, the one to which I can not subscribe, may perhaps be most
conveniently designated by the term—the theory of life units. It is
held by the defenders of this faith that the living substance contains
particles, very small in size, to which the vital properties are especially
attached. They look at a cell and find that it has water, or water con-
taining a small amount of salts in solution, fillmg up spaces between
the threads of protoplasm. Water is not alive. They see in the
protoplasm granules of one sort and another, in plants chlorophyll, in
animals perhaps fat or some other material. That is not living sub-
stance, and so they go striking out from their conception of the living
material in the cell one after another of these component parts until
they get down to something very small, which they regard as the life
unit. I do not believe these life units exist. It seems to me that
all these dead parts, as this theory terms them, are parts of the living
cell. They are factors which enable the functions of life to go on.
Other conditions are also there, and to no one of them does the quality
of life properly attach itself. Of life units there is an appalling array.
The most respectable of them, in my opinion, are the life units which
were hypothetically created by Charles Darwin in his theory of pan-
genesis. He assumed that there were small particles thrown off from
different portions of the body circulating throughout the body, gather-
ing sometimes in the germ cells. These particles he assumed to take
up the qualities of the different parts of the body from which they
emanated, and by gathering together in immense numbers in the
germ cells they accomplished the hereditary transmission. We know
now that this theory is not necessary, that it is not the correct theory.
But at the time that Darwin promulgated it, it was a perfectly sound
defensible theory, a theory which no one considering fairly the history
of biological knowledge ought to criticize unfavorably. It was a fine
mental achievement, but I should like also to add that of all the many
theories of life units, this of Darwin’s is the only one which seems to
AGH, GROWTH AND DEATH 517
me intellectually entirely respectable. Of supposed structural life units
there is a great variety. Besides the gemmules of Darwin, there were
the physiological units of Herbert Spencer. Professor Haeckel, the
famous German writer, has special structural life units of his own
which he terms plastidules; he gave them the charming alliterative title
of perigenesis of the plastidules; the rhythm of it must appeal to you
all, though the hypothesis had better be forgotten. Then came Nageli,
the great botanist, who spoke of the Idioplasma-Theilchen. Then
Weisner, also a botanist, who spoke of the Plassomes. Our own Pro-
fessor Whitman attributed to his life units certain other essential quali-
ties and called them idiosomes. A German zoologist, Haacke, has
called them gemmules. Another German writer, a Leipzig anatomist,
Altmann, calls them granuli. Now these different life units, of which
I have read you briefly the names, are not identical according to these
authors. Everybody else’s life units are wrong, falsely conceived, and
endued with qualities which they do not combine. There is a curious
assemblage here of doxies, and each writer is orthodox and all the
others are heterodox; and I find myself viewing them all from the
standpoint of my doxy, that of the structural quality of the living
matter, and, therefore, interpreting every one of these conceptions as
heterodox, not sound doctrine, but something to be rejected, condemned
and fought against. These theories of life units have filled up many
books. Among the most ardent defenders of the theory of life units
is Professor Weismann, whose theories of heredity many of you have
heard discussed ; though I doubt if many of you, unless you recall what
I said previously, are aware of the fact that the essential part of
Weismann’s doctrine was the discovery of the theory of germinal con-
tinuity by Professor Nussbaum, whose name is seldom heard in these
discussions. Weismann has gone much farther in the elaboration of
the conception of life units than any of the other writers. He thinks
the smallest of the life units are biophores. A group of biophores
brought together constitutes another order of life units which he calls
determinants; the determinants are again grouped and form ids; and
the ids are again grouped and form idants. If you want to accept
any theory of life units, I advise you to accept that of Weismann, for
it offers a large range for the imagination, and has a much more
formidable number of terms than any other.
I want to pass now to an utterly different line of study, the question
of psychological development. If it be true that the development is
most rapid at first, slower later, we should expect to find proof of
that rate in the progress of mental development. In other words, we
should expect to find that the baby developed faster than the child
mentally, that the child developed faster than the young man, and the
young man faster than the old. And do you not all instinctively feel
immediately that the general assertion is true? In order, however, that
518 POPULAR SCIENCE MONTHLY
you may more fully appreciate what I believe to be the fact of mental
development going on with diminishing rapidity, I should lke to pic-
ture to you briefly some of the things which the child achieves during
the first year of its life. When the child is born, it is undoubtedly sup-
plied with a series of the indispensable physiological functions, all those
which are concerned with the taking in and utilizing of food. The
organs of digestion, assimilation, circulation and excretion are all
functionally active at birth. The sense organs are also able to work.
Sense of taste and of smell are doubtfully present. It is maintained
that they are already active, but they do not show themselves except in
response to very strong stimulation. Almost the only additional faculty
which the child has is that of motion, but the motions of the new-born
baby are perfectly irregular, accidental, purposeless, except the motions
which are connected with the function of sucking, upon which the
child depends for its nourishment. The instinct of sucking, the baby
does have at birth. It might be described as almost the only equip-
ment beyond the mere physiological working of its various organs. But
at, one month we find that this uninformed baby has made a series of
important discoveries. It has learned that there are sensations, that
they are interesting; it will attend to them. You all know how a
baby of one month will stare; the eyes will be fastened upon some
bright and interesting object. At the end of a month the baby shows
evidences of having ideas and bringing them into correlation, associa-
tion, as one more correctly expresses it, because already after one month,
when held in the proper position in the arms, it shows that it expects to
be fed. There is, then, already evidence and trace of memory. At two
months much more has been achieved. The baby evidently learns to
expect things. It expects to be fed at certain times; it has made the
great discovery of the existence of time. And it has made the discovery
of the existence of space, for it will follow, to some extent, the bright
light; it will hold its head in a certain position to catch a sound appar-
ently from one side; or to see in a certain direction. The sense of
space and time in the baby’s mind is, of course, very imperfect, doubt-
less, at this time, but those two non-stuff realities about which the
metaphysicians discuss so much, the two realities of existence which
are not material, the baby at this time has discovered. Perhaps, had
some great and wonderfully endowed person existed who preserved the
memory of his own psychological history, of his development during
babyhood, we should have been spared the gigantic efforts of the meta-
physicians to explain how the notions of space and time arose. With-
out knowing how, the baby has acquired them, and has already become a
rudimentary metaphysician. We see, also, at the end of the third
month, that the baby has made another remarkable discovery. It has
found not merely that its muscles will contract and jerk and throw its
parts about, which is doubtless earlier a great delight to it; but that
AGE, GROWTH AND DEATH 519
the muscles can contract in such a way that the movement will be
directed ; there is a coordination of the muscular movements. I should
like to read to you just these three or four lines from Miss Shinn, who
has given perhaps the best story of the development of a baby which
has yet been written. This is not merely my opinion, but also the
opinion of my psychological colleagues at Cambridge whom I consulted
before venturing to express the idea before you, and I find that they
take the view that Miss Shinn’s book, which is charmingly written, is
really done with such precision and understanding of the psychological
problems involved that it may fairly be called the best of the books
treating of the mental development of a baby. Miss Shinn says, re-
ferring to the condition of the child at the end of two months—“ Such
is the mere life of vegetation the baby lived during the first two months;
no grown person ever experienced such an expansion of life—such a
progress from power to power in that length of time.” She is not
thinking of senescence, as we have been thinking of it, but she makes
precisely the assertion, which seems to me to be true, that the baby in
two months has accomplished an amount of development which no
adult is capable of. And now at three months we find another great
discovery is made by the baby, that it is possible to bring the sensations
which it receives into combination with the movements which it makes.
It learns to coordinate its sensory impressions and its motor responses.
We hardly realize what a great réle this adjustment, between what our
muscles can do and what our senses tell us, plays in our daily life. It
is the fundamental thing in all our daily actions, and though by
habit we perform it almost unconsciously, it is a thing most difficult to
learn. Yet the baby has acquired the art, though he only gradually gets
to be perfect in it. Again we see, at the end of the fourth month,
that the baby begins to show some idea of another great principle—
the idea that it can do something. It shows evidence of having purpose
in what it does. Its movements are no longer purely accidental. At
four months we find yet another equally astonishing addition to the
achievements of this marvelous baby. He makes the amazing discovery
that the two sides of an object are not separate things, but are parts of
the same. When a face, for instance, disappears by a person’s turning
around, that face, to a baby of one month, probably simply vanishes,
ceases to exist: but the baby at four months realizes that the face and
the back of the head belong to the same object. He has acquired the
idea of objects existing in the world around him. That is an enormous
achievement, for this little baby has no instructor; he is finding out
these things by his own unaided efforts. Then at five months begins
the age of handling, when the baby feels of everything. It feels urgently
of all the objects which it can get hold of and perhaps most of all of its
own body. It is finding that it can touch its various parts and that when
its hands and parts of its own body come in contact it has the double
520 POPULAR SCIENCE MONTHLY
sensation, and learns to bring those together and thereby is manufactur-
ing in its consciousness the conception of the ego, personal, individual
existence, another great metaphysical notion. Descartes has said—
Cogito, ergo sum—I think, therefore Iam. The baby, if he had written
in Descartes’s place, would have said—“ I feel, therefore Iam.” The
first five months constitute the first period of the baby’s development.
Its powers are formed, and the foundations of knowledge have been laid.
The second period is a period of amazing research, constant, uninter-
rupted, untiring; renewed the instant the baby wakes up, and kept up
until sleep again overtakes it. In the six months’ baby we find already
the notion of cause and effect. You see he is dealing mostly in meta-
physical things, getting the fundamental concepts. That there is such
an idea as cause and effect in the baby’s mind is clearly shown by the
progress of its adaptive intelligence. It evidently has now distinct
purposes of its own. It shows clearly at this age also another thing
which plays a constant and important réle in our daily life. It has the
consciousness of the possibilities of human intercourse; it wants human
companionship. And with that the baby’s equipment to start upon life
is pretty well established. It has discovered the material universe in
which it lives, the succession of time, the nature of space, cause and
effect, its own existence, its ego and its relationship with other in-
dividuals of its own species. Do we get at any time in our life much
beyond this? Not very much; we always use these things, which we
learn in the first six months, as the foundation of all our thought.
By eight months baby is upon the full career of experiment and ob-
servation. Everything with which the baby comes in contact interests
him. He looks at it, he seizes hold of it, tries to pull it to pieces,
studies its texture, its tensile strength, and every other quality it pos-
sesses. Not satisfied with that, he will turn and apply his tongue to it,
putting it in his mouth for the purpose of finding out if it has any
taste. In doing this, hour after hour, with unceasing zeal, never inter-
rupted diligence, he rapidly gets acquainted with the world in which
he is placed. At the same time he is making further experiments with
his own body. He begins to tumble about; perhaps learns that it is
possible to get from one place to another by rolling or creeping, and
slowly he discovers the possibility of locomotion, which you know by
the end of the year will have so far perfected itself that usually at
twelve months the baby can walk. During this period of from five
months to twelve the baby is engaged upon a career of original research,
unaided much by anybody else, getting doubtless a little help and, of
course, a great deal of protection, but really working chiefly by himself.
How wonderful it all is!’ Is any one of us capable of beginning at the
moment we wake to carry on a new line of thought, a new series of
studies, and to keep it up full swing, with unabated pace, all day long
till we drop asleep? Every baby does that every day.
AGH, GROWTH AND DEATH 521
When we turn to the child who goes to school, behold how much
that child has lost. It has difficulties with learning the alphabet. It
struggles slowly through the Latin grammar, painfully with the subject
of geometry, and the older it gets, the more difficult becomes the
achievement of its study. The power of rapid learning, which the
baby has, is clearly already lessened.
The introduction of athletics affords a striking illustration of the
decline of the learning power with the progressing years. When golf
first came in it was considered an excellent game for the middle-aged ;
and you have all watched the middle-aged man play. He was so awk-
ward, he could not do it. Day after day the man of forty, fifty, or
even older, would go to the golf field, hoping each time to acquire a
sure stroke, but never really acquiring it. The young man learned
better, but the good golf players are those who begin as children, twelve
and fourteen years of age, who in a few months become as expert and
sure as their fathers wished to become, but could not. In bicycling it
was the same. Hight lessons was considered the number necessary to
teach the intelligent adult to ride a wheel. Three for a child of eight.
And an indefinite number of lessons, ending in failure, for a person at
seventy. It would have been scientifically interesting to have kept an
exact record of the period of time which it took at each age to learn
bicycling, but I think enough has been said to convince you that if we
could acquire such a measure of psychological development as would
enable us to express its rate in figures, we should be able to construct a
curve like the curve which I showed you in the third lecture illustrating
the decline in the rate of growth, and we should see that during the
early years of life, the decline in the power of learning was extremely
rapid, during childhood less rapid, during old age very slow. But the
great part of the decline would occur during early years.
Here we see the principle of stability, in maturity, which we see
also illustrated in structure and growth. The mind acquires its devel-
opment; it retains that development in the adult a long time. But
surely there comes a period when the exercise of the mind is difficult.
It requires a great effort to do something new and unaccustomed. A
sense of fatigue overwhelms us. I believe that this principle of psy-
chological development, paralleling the career of physical development,
needs to be more considered in arranging our educational plans. For
if it be true that the decline in the power of learning is most rapid at
first, it is evident that we want to make as much use of the early years
as possible—that the tendency, for instance, which has existed in many
of our universities, to postpone the period of entrance into college, is
biologically an erroneous tendency. It would be better to have the
young man get to college earlier, graduate earlier, get into practical
life or into the professional schools earlier, while the power of learning
is greater.
522 POPULAR SCIENCE MONTHLY
Do we not see, in fact, that the new ideas are indeed for the most
part the ideas of young people. As Dr. Osler, in that much-discussed
remark of his, has said, the man of forty years is seldom the productive
man. Dr. Osler also mentioned the amiable suggestion of Trollope in
regard to men of sixty, which has been so extremely misrepresented in
the newspaper discussions throughout the country, causing biologists
much amusement. But I think that Dr. Osler probably took a far too
amiable view of mankind, and that in reality the period when the learn-
ing power is nearly obliterated is reached in most individuals very
much earlier. As in every class of biological facts, there is here the
principle of variation to be kept in mind. Men are not alike. The
great majority of men lose the power of learning, doubtless some more
and some less, we will say, at twenty-five years. Few men after twenty-
five are able to learn much. They become day laborers, mechanics,
clerks of a mechanical order. Others probably can go on somewhat
longer, and obtain higher positions; and there are men who, with ex-
treme variations in endowment, preserve the power of active and orig-
inal thought far on into life. These of course are the exceptional
men, the great men.
We have lingered so long together studying phenomena of growth,
that it is natural to allude to one more, which is as singular as it is
interesting, namely, the increase in size of Americans. It was first
demonstrated by Dr. Benjamin A. Gould in his volume of statistics
derived from the records of the Sanitary Commission—a volume which
still remains the classic and model of anthropometric research. Any
one, however, can observe that the younger generation of to-day tends
conspicuously to surpass its parents in stature and physical develop-
ment. How to explain the remarkable improvement we do not know.
Our discovery of the fact that the very earliest growth is so enormously
rapid, makes that earliest period especially important. If the initial
growth can be favored a better subsequent development presumably
would result. In brief, I find myself led to the hypothesis that the
better health of the mothers secures improved nourishment in the early
stages of the offspring, and that the maternal vigor is at least one
important immediate cause of the physical betterment of the children.
Much is said about the degeneracy of the American race, but the con-
trary is true—the American race surpasses its European congeners in
physical development.
You will naturally wish to ask, before I close the series of lectures,
two questions. One, how can rejuvenation be improved ; the other, how
can senescence be delayed. These questions will strike every one as
very practical. But the first, I fear, is not an immediately practical
question, but rather of scientific interest, for we must admit that the
production of young individuals is, on the whole, very well accom-
plished and much to our satisfaction. But in regard to growing old,
AGE, GROWTH AND DEATH 523
in regard to senescence, the matter is very different. There we should,
indeed, like to have some principle given to us which would delay the
rate of senescence and leave us for a longer period the enjoyment of
our mature faculties. I can, as you have readily surmised by what I
have said to you, present to you no new rule by which this can be ac-
complished, but I can venture to suggest to you that in the future
deeper insight into these mysteries probably awaits us, and that there
may indeed come a time when we can somewhat regulate these matters.
If it be true that the growing old depends upon the increase of the
protoplasm, and the proportional diminution of the nucleus, we can
perhaps in the future find some means by which the activity of the nuclei
can be increased and the younger system of organization thereby pro-
longed. That is only a dream of the possible future. It would not
be safe even to call it a prophecy. But stranger things and more
unexpected have happened, and perhaps this will also.
I do not wish to close without one added word. The views which
I have presented before you in this series of lectures I am personally
chiefly responsible for. Science consists in the discovery made by indi-
viduals, afterwards confirmed and correlated by others, so that they
lose their personal character. The views which I have presented to
you, you ought to know are still largely in the personal stage. Whether
my colleagues will think that the body of conceptions which I have
presented are fully justified or not, I can not venture to say. I have
to thank you much, because between the lecturer and his audience there
is established a personal relation, and I feel very much the compliment
of your presence throughout this series of lectures, and of the very
courteous attention which you have given me.
To recapitulate—for we have now arrived at the end of our hour—
we may say that we have established, if my arguments before you be
correct, the following four laws of age.
First, rejuvenation depends on the increase of the nuclei.
Second, senescence depends on the increase of the protoplasm, and
on the differentiation of the cells.
Third, the rate of growth depends on the degree of senescence.
Fourth, senescence is at its maximum in the very young stages, and
the rate of senescence diminishes with age.
As the corollary from these, we have this—natural death is the con-
sequence of cellular differentiation.
524 POPULAR SCIENCE MONTHLY
RADIOACTIVITY OF ORDINARY SUBSTANCES
By W. W. STRONG
JOHNS HOPKINS UNIVERSITY
URING the latter part of the nineteenth century a great deal of
work was done upon electrical discharges in rarefied gases. In
1895 Rontgen made the epoch-making discovery that such a discharge
was the source of very penetrating radiations. These radiations he
called X-rays on account of their unknown nature, and he found that
they possessed the power of making a gas a conductor of electricity by
producing in it a great number of positively and negatively charged car-
riers or ions. Besides ionizing a gas, the X-rays were found to affect
a photographic plate just as light rays do and to be able to penetrate
thin sheets of the metals and many other bodies which are opaque to
light. It was found in the course of experimentation that these X-rays
were closely related to the stoppage of the cathode particles or cor-
puscles, and the phosphorescence on the walls of the vacuum tube
which these corpuscles excite. In 1897 J. J. Thomson found that
these cathode particles or corpuscles were small negatively charged
particles of an apparent mass only one seven-hundredth that of the
hydrogen atom and that in a “ high vacuum” tube in a strong electric
field they acquired a velocity approximating that of light. All the
properties of the corpuscles were found to be the same, no matter what
kind of gas or electrodes were in the discharge tube. Their mass was
found to vary with their velocity in such a way that the whole mass
of the corpuscle could be ascribed to the electric charge which it car-
rie?. From this most important discovery it was concluded that all
the common substances were partly made up of corpuscles, and this
conclusion has been strengthened by all later discoveries. After
Thomson’s discovery, Stokes showed that the sudden stoppage of the
corpuscles by the walls of the discharge tube caused intense electro-
magnetic disturbances to travel out from the point of impact. These
disturbances are the X-rays and travel with the velocity of light.
DISCOVERY OF RADIOACTIVITY
When Roéntgen announced his discovery, it created a great impetus
in the study of everything related to electrical discharges. Now it
had been known for a long time that some bodies like the uranium
salts phosphoresce when exposed to sunlight, and it occurred to H.
Becquerel that such a phosphorescing body might emit X-rays, this
RADIOACTIVITY 525
emission being analogous to the origin of X-rays in the phosphorescing
glass walls of a vacuum tube. In accordance with this view in 1896
he exposed a photographic plate to uranium sulphate which was cov-
ered with copper and aluminium foil and found that the plate was
acted upon. Accidentally he found that this action took place, no
matter whether the uranium nitrate was phosphorescing or not, and he
found that uranium which had never been exposed to sunlight pos-
sessed the same property. He found that these radiations from ura-
nium were similar to the X-rays in their penetrating power. This was
the first discovery of the possession of radioactivity by a body, +. e., the
power of a body to ionize a gas, to affect a photographic plate or to
produce phosphorescence.
Madame Curie then took up the problem of finding whether other
substances possessed the properties of uranium and found that tho-
rium did. She made a detailed investigation then of all the elements
and found that none, with the exception of uranium and thorium,
possessed these properties even to the order of the hundredth part of
that of uranium. She, however, found that some minerals possessed
a greater radioactivity than uranium or thorium, and concluded that
these must contain elements more highly radioactive than either of
these. After much tedious, but brilliant, work she was able to sepa-
rate out the very radioactive element radium. As a result of the work
of the Curies, and many others, it was found that thorium, uranium,
radium and actinium were radioactive, the latter two being intensely
so. None of the other elements were found to possess any radioac-
tivity to within the limits of the experimental errors of the method of
observation.
The study of these radioactive elements has been the source of very
important discoveries in physics. These elements are found to emit
spontaneously a continuous flight of material particles, projected with
great velocity, and also to be the source of radiations similar to X-rays
and called y rays. We will now describe the material particles, which
are of two kinds, the a and £ rays.
The a rays consist of positively charged particles shot out by the
radioactive body with a velocity approaching that of light. They are
readily absorbed by thin sheets of metal foil or by a few centimeters of
air. The @ rays are far more penetrating in character than the a
rays and consist of negatively charged bodies projected with velocities
of the same order of magnitude as that of light. As far as known,
they are identical with the corpuscles. Of the three kinds of rays, the
a Tays produce the greatest amount of ionization and the y rays the
least. With a thin layer of unscreened radioactive matter spread on
the lower of two plates, say 5 cm. apart, it will be found that the rela-
tive order of ionization due to the a, 8 and y rays is as 10,000 to 100
to 1, whereas the average penetrating power is inversely proportional
526 POPULAR SCIENCE MONTHLY
to the relative ionization. The photographic action is due almost
entirely to 8 rays.
THE DISINTEGRATION THEORY
The radioactivity of the radio-elements is not a molecular, but an
atomic, property, and the rate of emission of the radiations depends
on the amount of the element present and is unaffected by the applica-
tion of any known physical or chemical forces. In order to explain
the emission of positively and negatively charged particles, Rutherford
and others consider the radio-elements as undergoing spontaneous
changes and that the energy of projection of the a and @ rays had pre-
viously been stored up in the atom as rapid oscillatory or orbital motion.
This breaking up of the atoms is considered to be accompanied by the
production of a series of new substances which have distinct physical
and chemical properties. For instance, thorium produces an intensely
radioactive substance, thorium X, which is soluble in ammonia. Tho-
rium gives rise also to a gaseous product, the thorium emanation, and
this is the source of another substance, which is deposited on the sur-
face of bodies in the neighborhood of the thorium, and which is known
as the “excited activity” or the “active deposit.” If a negatively
charged wire is brought into close proximity with thorium salts, the
“active deposit” will form upon it. The “active deposit” itself
decays into a succession of products.
Following will be given some of the products of the various radio-
active elements and some of their properties.
TABLE I.
TRANSFORMATION PrRopucts. THE THORIUM GROUP
Time to be Seri Range of Physical and Chemical
Product pis 2 See Radiations a Rays Properties
Thorium 2(10)% yrs.| Rayless (?) Insoluble in ammonia
Radiothorium | ? a rays 3.9 cm.
Thorium X 3.6 days oh 5.7 cm. Soluble in ammonia
Emanation 54 secs. - 5.5 em. Inert gas condensing
i" at —120° C
‘a ( Thorium A :
me sy = The active deposit
a 3 isconcentrated on the
= Thorium B 1 hr. a rays 5.0 em. cathode in an elec-
Fj tric field.
& (Thorium C Very short| a, f,y rays | 8.6 cm.
THE URANIUM GROUP
Uranium | (10)? yrs. a rays 3.5 cm. | Soluble in an ex-
cess of ammonium
carbonate
Uranium X 22 days 8 &y rays Insoluble in ammo-
' nium carbonate.
RADIOACTIVITY 527
Tue ACTINIUM GROUP
Actinium Pag, Rayless Insoluble in am-
monia =—
Radioactinium) 19.5 days | a rays 4.8 cm. Carried down in an
actinium solution by
adding BaCl,
Actinium X 10.2 days a 6.55 em. Soluble in am-
monia
Emanation 3.9 secs. cs 5.8 cm. Behaves like a gas
-@ ( Actinium A 36 min. Rayless
a The active deposit
& is concentrated on
= the cathode in an
= electric field
< Actinium B | 2 min. a, B, y rays
THE RADIUM GROUP
Radium 1,300 yrs. | @ rays 3.50 cm. Allied chemically
to barium
Emanation 3.8 days 4 4.33 cm. Inert gas of heavy
molecular _ weight,
condensing at
© —150° C.
32 | Radium A 3 min. es 4.83 cm. The active deposit
2.8 Radium B 26 min. Braysof low is concentrated on the
AS penetra- cathode in the elec-
ae ting power tric field
Om
<¢ \ Radium C 19 min. a, 8, y rays | 7.06 cm.
_| Radium Dor) 40 years Rayless Volatile below
=&| Radiolead 1,000° C.
22] Radium E 6 days B rays Non-volatile at
as 1,000° ©.
25 | Radium F or| 140days | a rays 3.86 cm. Deposited in bis-
8 polonium or muth in solution.
<5 radiotellu- |
rium
In connection with these tables it may be well to consider the a
particles a little more. It has been found that the a particles of any
one product are emitted with the same velocity. It is found that after
passing through a definite distance of gas, they then cease to ionize it.
If the gas is air under normal conditions of pressure and temperature,
this distance will be the range of the a particle. All experiments up to
the present indicate that the a particles of the different products differ
only in the speed of projection, this speed determining the range of
ionization. Rutherford has found an empirical relation between the
range of the a particle and its velocity at any point in its path. If
r is the remaining range after passing through a screen, its velocity
is V=.348 V, Vr-+ 1.25, where V, is the initial velocity of the a
particles emitted from radium C, and is 2.06 (10)® cm. per sec. The
initial velocity of expulsion of an a particle from a certain product
will then be a constant. The value of e/m for all a rays measured
has been found to be the same and to be about 5.07 (10)* electro-mag-
netic units. It thus follows that all the radio-elements possess the
528 POPULAR SCIENCE MONTHLY
common constituents, the a and 8 particles. It has been found that
after a certain critical velocity has been reached, the a particles all at
once cease to produce any ionization, phosphorescence or photographic
action. If a substance emits particles with a velocity less than this
critical velocity, we should have no method at present available for
detecting them. As to the enormous amount of ionization produced
by radium, one can partly grasp it when one considers that an a par-
ticle produces about 80,000 ions and one grm. of radium emits about
6 (10)*° a particles per second. ‘The y rays also differ in penetrating
power. The y rays from radium and thorium are very much stronger
than those from uranium and actinium.
THE RELATIONSHIP BETWEEN VARIOUS ELEMENTS
By actual experiment in the laboratory it is possible to watch the
gradual formation of helium and actinium. ‘The rate of formation
of helium from radium is known roughly, so that if in any rock the
helium formed from radium has not been allowed to escape, a quite
accurate estimation of the age of the rock can be made. Radium has
also been found by Boltwood and Rutherford to grow in actinium
solutions. But by investigating elements which appear together in
the rocks it is possible to learn much more. In fact it was from the
occurrence of helium in radioactive minerals that the brilliant predic-
tion of the production of helium was made. Boltwood, Strutt and
McCoy have shown that the amount of radium present in radioactive
minerals always bears a constant ratio to the amount of uranium
present. For every gram of uranium there is present 3.8 (10)~7 grms.
of radium. From this coexistence in a constant ratio, one is justified
in assuming that radium is a product of uranium. If this is true it
is easy to explain the existence of radium in rocks that contain
uranium. Otherwise, on account of the short period of disintegra-
tion of radium, it would be difficult to account for its distribution
through the rocks. It has also been found that minerals of the same
age contain uranium and lead in the same ratio, so that it seems quite
certain that lead is a disintegrated product resulting from radium.
Recent experiments by Rutherford seem to indicate, however, that
actinium is not a direct product of uranium, as radium is considered
to be. The existence together of various other elements has been used
as an argument for their relationship. At present, however, the evi-
dences are very meager and often conflicting. This field of experi-
ment is one that promises very important results, however.
Tue DISTRIBUTION OF RADIUM
Considerable work has recently been done by the Hon. R. J. Strutt
upon the amount of radium contained in various kinds of rocks widely
——_—_ ~— RADIOACTIVITY 529
distributed over the earth. As this kind of work will probably have
considerable geological importance, a few of Strutt’s results will be
given. A solution of a definite amount of the rock was stored until
the equilibrium amount of radium emanation had accumulated. Now,
as we have seen that uranium and radium occur in a constant pro-
portion, it is possible to use a mineral of known uranium content and
to compare the amount of radium emanation emitted by this and that
emitted by the given rock. Following are some of Strutt’s results,
using 3.8 (10)-* grms. of radium as accompanying 1 gram of uranium
in uranium minerals.
TaBLeE II.
RADIUM CONTENT oF IGNEOUS RocKs
Name Hock toctity | Density | Ratlumares, | Pala ze
Granite Rhodesia 2.63 | 491 (10)-? | 12.9 (10)-2
a Cornwall 2.62 4.80 (10)-* | 12:6 (10)-"
Blue grouud Kimberly 3.06 is (10j}—2 ) -6:29:/(410)-4
Leucite basanite Vesuvius 2.72 Lik (10) |) 466610) -2
Hornblende granite | Assouan, Egypt 2.64 1.26. (10)-™"| °3:32,C10)-=
Hornblende diorite | Heidelberg 2.89 ¥.02" (10)+7"|" 2.94 (10)-2
Augite syenite Norway 2 73 -95 (10)-*} 2.60 (10)
Granite Isle of Rum 2.61 pon, AAD) a4 OT (10)
Basalt Greenland 3.01 son (10)-2 -94 (10)-#
Native iron a6 -218 (10) -#
Meteoric iron Thunda Undetectable
i eS Virginia ae
De ok: Santa Catarina oe
RADIUM CONTENT OF SOME SEDIMENTARY Rocks
Radium Content per
Name of Rock Locality Gram in Grams
Oolite Bath 3.00 (10)-?
Marble East Lothian £99) ((10)=4
Roofing slate Wales 1327 (10)=>
Gault clay Cambridge 5:09) G10)=2
Clay Essex 89 (10)-?
Red chalk Hunstanton 57 (10)
White marble India 228) LO) a=
Chalk Cambridgeshire 2405 (10) 54
Deposit from Bath hot springs 425 (10)-?
Cambridge tap water .400 (10)-?
Sea salt AiW@ (i)
Boiler crust, Cambridge .040 (10)-?
Sea salt Omaha .0204 (10)-
Sea water Atlantic .003 (10)-?
These two tables give but a few of the analyses of Strutt. They
show the very wide distribution of radium both in the igneous and in
the sedimentary rocks. The average radium content of the rocks exam-
ined by Strutt is high, whereas that of sea salt is quite small. Strutt
finds that the radium content necessary to maintain the earth at a
constant temperature is about 1.75 (10)-** grms. of radium per cubic
centimeter of the earth. This is very much less than the lowest
radium content of any of the rocks. For this reason he believes that
VOL. LXxI.—34.
530 POPULAR SCIENCE MONTHLY
radium is to be found only in an outer crust of the earth, at least if
the earth is becoming cooler. In making these calculations, the effect
of thorium and uranium and the possible radioactivity of ordinary
materials is not taken into account. If the heating effect of ordinary
materials is of the same order of magnitude as is to be expected from
the ionization they produce, the earth’s temperature gradient would
be many times larger than that observed. Strutt believes this to be
an argument that ordinary matter possesses no genuine radioactivity
of its own. CC. B. Thwing claims, however, that he has been able to
find a temperature gradient in small cylinders of the various metals
and rocks. At present nothing very definite can be said as to the
heating effect of the radioactivity of substances upon the temperature
of the earth. Having considered the radioactivity of the various
rocks, we will now take up the atmosphere.
RADIOACTIVITY OF THE ATMOSPHERE
It was found after considerable work had been done on ionization
that the free air is very considerably ionized. Now in the table of
the transformation products of the radio-elements, it will be noticed
that several products have the property of condensing on a highly
negatively-charged wire. Elster and Geitel and others tried exposing
such a wire in the open air and found that there was an active deposit
vf radium and thorium formed on the wire. The amount of active
deposit was found to depend upon the locality and the weather condi-
tions. If the air had been undisturbed for some time as the air in
caves and cellars, it was found that the active deposit formed was
much greater. Air sucked through the pores of the ground was found
to be very active. From these results, Elster and Geitel concluded
that the radium and thorium emanations (which behave like gases)
ooze up through the ground and percolating waters and have their
origin in the radium and thorium in the soil. The emanation then
breaks up into the various products as given in Table I. The emana-
tion in this course gives rise to positively charged carriers, which are
driven to a negatively charged wire by the electric field. It is to the
emanation and its products that the ionization of the air is attributed.
Thorium C and radium C give off y rays, and, as these are very pene-
trating, they would be the source of a very penetrating radiation, and
this latter has been discovered several years ago. The ionization in
a closed electroscope is measured, and thick lead screens are then
placed around the electroscope, and the ionization is again measured.
The ionization in the latter case is found to be very considerably de-
creased, the penetrating radiation having been largely cut off. Whether
all the penetrating radiation can be explained as due to radium C and
thorium C will be taken up later.
RADIOACTIVITY Ron
As the potential of the earth is negative compared with that of the
air, the active deposit is dragged down to the surface of the ground
and upon the leaves and branches of plants and trees. A hill or
mountain top concentrates the earth’s field and so receives a greater
amount of the active deposit. In this way Elster and Geitel explain
the greater ionization on hills and mountains. Experiments show
that the active deposit tends to collect on dust particles. These dust
particles serve as nuclei for the condensation of raindrops and snow-
flakes. The deposit resulting from evaporating rain and snow should
be very radioactive. This was found to be true by Wilson and Allen.
Again, a big rain or snow should carry down most of the active deposit,
and as the emanation does not emit y rays, the amount of y radiation
from the radioactive matter in the air should be very much decreased.
The penetrating radiation, if it consists mainly of y rays, should then
become very small. This has been found to be borne out by experi-
ments made by the writer. It must be remembered that the emana-
tion is insoluble in water and as this does not seem to be carried down
by water or snow, the products radium C and thorium C would soon
be in equilibrium again after the rain or snow.
The effect of the presence of radioactive matter in the atmosphere
upon ordinary phenomena is perhaps very great, though at present little
is known. It has been found that deep wells and hot springs contain
considerable radium. From this Elster and Geitel suggest that the
curative effect of thermal springs and the physiological action of the
air at high levels may be related to the large amount of radioactive
matter present. ‘The presence of radioactive matter, and therefore of
ionization, in the air probably plays a very important réle in the
growth of plants. It has been found that vegetables grown in an
atmosphere electrified positively are much above those grown in normal
fields both in quantity and in quality. The ionization and nucleation
produced by radioactive matter in the air are very essential for the
condensation of rain and hail, and serve to explain the enormous ac-
cumulation of static electricity during thunderstorms. Simpson and
others have measured the activity of the air which has blown over the
sea and have found it small. Now if most of the radium and thorium
emanations come from the pores of the soil and underground cavities,
the results obtained by the above investigators would be expected, for, as
will be seen from Table II., the radium content of ocean water is very
small. Eve has recently measured the ionization over the ocean and
has found it to be the same as the ionization over the land, a rather
unexpected result. In this state the matter rests at present. A
crucial test would be to expose negatively charged wires far out in the
ocean and find whether there was any active deposit and to test for the
presence of a penetrating radiation. According to J. Joly, the distin-
guished geologist, Eve’s results can easily be explained. Geologists have
532 POPULAR SCIENCH MONTHLY
for some time made an approximate estimate of the age of the oceans
by making determinations of the amount of salt which they contain.
By analyzing the waters of rivers flowing into the ocean for the salt
which they contain and determining the total annual outflow of all the
rivers into the ocean, and supposing these constants to have been prac-
tically constant during the past, it is easy to make an estimate of the
approximate age of the oceans. Now if radium and uranium always
exist in a constant proportion, the present radium content of the ocean
would have been supplied by the rivers in a comparatively short length
of time. For this and other reasons Joly believes that uranium and
radium are not always to be found associated together. Now we know
that radium has a short period of decay, so that it must constantly be
supplied from somewhere. Joly believes that the source is at least
partly outside of the earth. This radium is gradually being brought
down to the surface. This would account for the ionization over the
ocean and the wide distribution of radium over the earth. Elster and
Geitel’s theory of the escape of the emanation from the upper layers of
the soil would still hold true. If radium exists outside the earth, it
would be expected that the upper layers of the earth’s atmosphere would
be highly ionized by the y rays. This highly ionizing radiation would
serve to explain some of the phenomena of atmospheric electricity.
According to C. T. R. Wilson, the positive potential of the atmosphere
is largely to be attributed to the carrying down of negative charges by
raindrops and snowflakes. The upper layers of the atmosphere, being
highly ionized and quite good conductors, would conduct the remaining
positive charge to places of lower potential and would thus always aid
in equalizing the potential of wet and dry regions.
RADIOACTIVITY OF THE METALS
After the discovery that several of the elements were radioactive,
it was natural to ask if radioactivity was a universal property of all the
elements. Madame Curie’s work showed that if the ordinary elements
are radioactive at all, they must possess this property to but a very
slight degree. In order to detect any possible radioactivity, it was
necessary to have very sensitive instruments. It was found by Wilson
and Geitel that there is a leakage of electricity through a gas in a
closed vessel and that this leak could be measured very accurately by
means of an electroscope. Now either the ions are produced spon-
taneously in the gas, by a radiation which is capable of penetrating the
sides of the electroscope or by radiations from the walls of the electro-
scope itself. Rutherford, Cooke and McClennan have shown that some
thirty or forty per cent. is due to a very penetrating radiation sup-
posed to be the y rays emitted by the radium and thorium products in
the air and ground. By using lead screens around the electroscope,
they were able to decrease the rate of leak to a certain limiting value
RADIOACTIVITY 533
beyond which they were unable to go, no matter how much lead was
used. Strutt and others then found that for electroscopes of the same
dimensions, the amount of ionization depended on the material forming
the walls. For vessels of the same shape and size, lead walls gave the
greatest amount of ionization, tin and iron considerably less, aluminium
and glass the least of all. Strutt found that different specimens of the
same metal gave a different ionization and he therefore concluded that
the radioactivity of the metals was probably due to a common impurity.
Patterson then tried using different gases and found that the
ionization was proportional to the density. This fact is strong evidence
that the ionization is not spontaneous within the gas, but is due to a
radiation from the walls of the vessel. Patterson also found for the
given vessel which he used (30 em. in diameter and 20 cm. long) that
the current through the gas was independent of the pressure above 300
mm. of mercury and varied directly as the pressure below 80 mm. The
ionization was found independent of the temperature up to 450° C.
That the ionization was related to the pressure as stated above would
indicate that above 300 mm. of mercury all the radiation was absorbed,
whereas below 80 mm. it was not all absorbed.
The most complete work on the radiations from the metals and
their salts has been done by Campbell. In experiments on the radia-
tions from the metals, Campbell used an aluminium-lined box. Inside
this was a wire gauze cage containing a gauze electrode. The cage
would allow the admission of radiations, but not of ions. Then by pla-
cing two sheets of metal so as to radiate into the cage, one sheet being
arranged to slide back and forth, it was possible to measure the ioniza-
tion produced at different distances of this sliding sheet from the cage.
The curve which was plotted from the values of the ionization and the
distances gave the values of various constants from which it was pos-
sible to determine the values given in a table which is shortly to follow.
Before considering this table it is needful to say that the curves in-
dicated (when the external penetrating radiation was cut off): (1)
an easily absorbable radiation from the sheets of metal placed aside of
the cage; (2) a more penetrating radiation from the same; and (3)
the radiation from the gauze cage. When the external penetrating
radiation was not screened off, the curves showed in addition an ioniza-
tion due to (4) the external pentrating radiation; (5) to the penetra-
ting radiation excited by it; and (6) to the easily absorbable radiation
also produced. In the table, a is Bragg’s constant for the intrinsic
absorbable radiations, a constant which corresponds to the range of the
a particles of the radioactive elements; s is the number of ions pro-
duced per second by the intrinsic absorbable radiation from one square
centimeter of the surface of the metal, when totally absorbed in air;
dX is the coefficient of absorption of the easily absorbable secondary
radiation; s’ is the number of ions produced per cubic centimeter by
534 POPULAR SCIENCE MONTHLY
the easily absorbable secondary radiation from one square centimeter of
the metal under the circumstances of the experiment; V is the number
of ions produced in 1 cc. by the intrinsic penetrating radiation from the
whole box and lead screen; V’ is the number of ions produced in 1 c.c.
by the external radiation and the penetrating radiation excited by it.
Tanne (i.
Metal s x | V WA a A
Lead (1) 270 0 10.2 14.2 1
££. %(2) 260 0 13.4 26.3 12
Copper (1) 103 160 22, 22 9 6
cers 6-5) 110 Q1 8.1 27.4 9 25
Aluminium 117 0 14.8 if 6 0
Tin 144 156 aii! 18.9 9 »
Silver 146 146 25.5 17.0 8.5 9
Platinum 74 411 ieo 14.1 12 4
Gold 78 169 10.4 16.8 10 .6
Zine 72 51 15.4 16.8 10 5
Tron 119 124 12.3 10.5 13 eo
d is the coefficient of absorption of the easily absorbable secondary radiation.
By using a strong electrostatic field, an attempt was made to deter-
mine whether the ionizing agents for the intrinsic absorbable radiation
were charged. These radiations were found certainly not to be of the
B type and very probably to have a nature similar to that of the a rays.
No radium emanation was able to be detected from the lead used.
From the constancy of the value of s for the different specimens of
the same metal and on account of the variation in the values of a for
the different metals, Campbell rightly concludes that there seems to
be no doubt but that the ordinary metals are feebly radioactive. In
some cases the experimental and theoretical curves agree so well that
it would seem that the radiations are homogeneous.
Campbell has also investigated the radioactivity of the metals and
their salts in a similar way. He finds that the emission of radiations
is an atomic property and that salts prepared by totally different
methods and from materials derived from different sources, produce the
same ionizing effect. It is only the metal that produces any measurable
ionizing effect. The following are some of the results:
| | |
Ree eater iaasiices 7% | arbitrary Units
Lead 9.3 Tin 4.4
Lead sulphate (1) 6.8 Tin sulphide (1) 4.1
«c a ( 2) 7 «6 “ (2) 3.9
ce ce (3) 7 hay? “ ae (3) 3.8
Lead monoxide 8.2 | Bismuth 6
Mercury 9 Bismuth oxide 5.7
Mercurous oxide 5 Potassium sulphate 70
Mercuric oxide 6 *
RADIOACTIVITY 535
: = a | —s | Tay h
Substance fuse | se | Pogue ole mee
Potassium sulphate (1) 44.7 4s9 | 1,090 | 2920
LE ss (2) 5 471 1,050 fb 215
Potassium chloride (1) 52.1 495 951 |. 135
“cc a3 (2 ) “cc “ce | ce 139
Potassium iodide It) 255 276 1 fS0 oi ece
Potassium nitrate 38.6 388 | = 1,005 | 498
Potassium sulphate (from wood) 44.7 474 | 1,060
Orthodase 16.5 201 he e220 |
Rubidium alum 16.6 128 768
The use of numerals after the name of the substance is to indicate that the
substance was made by a distinct method of analysis.
It will be noticed that the ionization from potassium and rubid-
ium is very large compared with that from the other metals. It was
found that the penetrating power of the potassium and rubidium
radiations was also quite large. A given sample of a potassium salt
gave the following results:
Number of
Sheets of Foil Ionization Decrease
0 f 467
1 361 106
Pe 299 62
3 265 34
4 240 25
It will be seen that the rays are very heterogeneous and vary in
penetration from that of the very penetrating B rays of uranium down-
ward. Sodium, lithium and ammonium salts showed no more activity
than zinc. The rays from rubidium were found less penetrating than
those from potassium. The activity of uranium is about a thousand
times that of potassium. Photographs were also taken by making use
of the rays from potassium and rubidium.
Campbell’s results are in consonance with the experiments made
some time ago by J. J. Thomson. Thomson showed that rubidium and
potassium emit negatively charged particles which were deflected by an
electrostatic field in the same way as the ordinary corpuscles.
CoNCLUSION
In summing up we find that:
1. Some of the elements, as radium and thorium, are intensely
radioactive.
2. Radium is very widely distributed through the rocks of the earth,
and in radioactive minerals is found to exist in a constant proportion
with uranium.
3. Radium and its products are also to be found in the air and play
an important role in atmospheric phenomena.
4, The ordinary metals are slightly radioactive, emitting radiations
that seem very much like the a radiation from the radio-elements.
5. Potassium and rubidium emit radiations similar to the f rays.
536 POPULAR SCIENCE MONTHLY
THE INFLUENCE OF DIET ON ENDURANCE AND
GENERAL EFFICIENCY
By PRorressoR RUSSELL H. CHITTENDEN
SHEFFIELD SCIENTIFIC SCHOOL OF YALE UNIVERSITY
A Vcgtegr ace a study of the physiological needs of the body
for food! has indicated that the real requirements of the sys-
tem, especially for proteid foods, are far below the amounts called for
by existing dietary standards, and still farther below the customary
habits of the majority of mankind. The ability of the body to main-
tain a condition of physiological equilibrium, with a true nitrogen
balance, ete., on a relatively small amount of nitrogenous food, would
seemingly imply that the large surplus so generally consumed consti-
tutes an entirely uncalled-for drain upon the system, as well as upon
the pocket of the individual, and without any compensatory gain.
In our experimental study of this question, observations on many
individuals have extended over such long periods of time that there is
apparently perfect safety in the conclusion that the new dietary stand-
ards which aim to conform to the true needs of the body are perfectly
adapted to maintain health, strength and vigor indefinitely. Further,
the many data obtained in our experimental studies, reinforced by a
multitude of personal experiences from all over the world, communi-
cated to the writer, all lead to the view that there is great personal gain
in the acquisition of dietary habits that tend toward moderation and
simplicity. Renewed health, increased vigor, greater freedom from
minor ailments, ete., are so frequently reported as the outcome of tem-
perance in diet, that we are forced to the conclusion that the surplus
of proteid food so commonly consumed—amounts far beyond what the
physiological necessities of the body demand—is wholly unphysiological
and in the long run detrimental to the best interests of the individual.
There is seemingly sound philosophy in so changing the customs and
habits of our daily life that they will conform more or less closely to
our present understanding of the physiological requirements of the
body.
It is certainly not presumptuous to assume that physiological ex-
perimentation can tell us definitely and concisely how much and what
kinds of food are needed to supply the daily waste of tissue and to
make good the loss of energy incidental to varying degrees of bodily
+See Chittenden: “ Physiological Economy in Nutrition ” and “The Nutri-
tion of Man,” Frederick A. Stokes Co., New York.
THE INFLUENCE OF DIET ON ENDURANCE _— 537
activity. This we have sought to ascertain by our studies of the past
five years, and confidence in our results is augmented by the fact that
when living on a lower level of proteid consumption bodily strength
and endurance are unquestionably increased; muscular fatigue and
soreness as concomitants of severe or prolonged muscular effort di-
minish or are wholly wanting; thus raising the suggestion that under
true physiological conditions the muscles of the body are capable of
more prolonged effort, and with greater freedom from disagreeable
after-effects than when the system is charged with an excess of ni-
trogenous and other waste incidental to large intakes of proteid food.
In other words, consumption of proteid food in closer harmony with
the true needs of the body is accompanied by a smoother and more
efficient working of the bodily machinery; less friction and better
results follow a daily diet in which excess is avoided and the intake
made to correspond more closely with physiological requirements.
Those who are skeptical of the real value of a relatively low intake
of proteid food frequently acquiesce in the general statement that as a
physiological experiment it may be quite true that equilibrium, physical
vigor, efficiency, etc., can be maintained by a smaller amount of pro-
teid food, but they are inclined to the view that in the long run more
abundant supplies of nutriment will be demanded in harmony with
the ordinary customs of mankind. This is a reasonable objection, and
one that time only can answer. It is quite possible—though not very
probable—that an experiment of several years’ duration even may fail
to show certain deleterious effects which eventually may manifest them-
selves, assuming that the body does actually need more proteid food
than our experimental results imply. This may be a purely theoretical
objection, but it is one that is deserving of some consideration, since it
is unquestionably true that there are many factors in the broad subject
of nutrition not yet fully understood, and there are many phases of
proteid metabolism not wholly clear. So far as any experimental
evidence is concerned, however, there is nothing, in the writer’s opinion,
that can be construed as giving weight to this objection. Neither are
there any observations bearing on the customs or habits of peoples or
communities that can be adduced in favor of possible danger to the
individual from a continued intake of proteid food in harmony with
our experimental data; certainly none that is not equally susceptible
of plausible explanation on some other ground.
As has been stated in another place,” a daily intake of 60 grams,
or two ounces, of proteid is quite sufficient to meet the needs of a man
of 70 kilograms body-weight, and this without increasing unduly the
amount of non-nitrogenous food. In fact, for a man of the above
weight doing an ordinary amount of work, the total calorific value of
2“ The Nutrition of Man,” p. 272.
538 POPULAR SCIENCE MONTHLY
the daily food need not exceed 2,800 calories. As compared with the
ordinary statements of the body’s needs, this means a saving of one
half in the amount of proteid food and about one fifth in the amount
of non-nitrogenous food daily. That these smaller amounts of food
are quite sufficient to meet the needs of the body is indicated by the
condition of the subjects after many months of living at these lower
levels. Especially noticeable, because at that time wholly unexpected,
was the decided gain in bodily strength and endurance manifested by
all the subjects of experiment. This gain was spoken of as gain in
“total strength,’ but the element of endurance was incorporated
therein, since the final product? was a compound of the dynamometer
tests of individual muscles and the number of times the individual
could pull up and push up his body on the parallel bars. The natural
interpretation of the results obtained was that the increased muscular
efficiency was a direct or indirect result of the lowered proteid metab-
olism of the body. In other words, it might be reasoned that the
smaller consumption of proteid food was a nearer approach to normal
conditions, and as a result there was manifested an increased muscular
efficiency. However this may be, bodily strength and endurance were
certainly increased, and the question naturally arises, will this improved
state of the body continue for any length of time under such conditions
of diet? In other words, may we expect to find an improved physical
condition of the body in following habits of life which seemingly accord
more closely with true physiological needs, avoiding that excess of food
intake that the common practises of mankind sanction?
One of the first subjects experimented with by the writer was
Horace Fletcher, who in 1903 spent several months in our laboratory*
and was at the same time carefully tested by Dr. William G. Anderson,
director of the Yale Gymnasium, as to his physical condition. For
some five years Mr. Fletcher had practised a certain degree of absti-
nence in the taking of food with, as he believed, important economy,
t. e., great gain in bodily and mental vigor and with marked improve-
ment in his general health. He found that under his new method of
living he was possessed of a peculiar fitness for work and with freedom
from the ordinary fatigue incidental to extra physical exertion. In
the laboratory observations made at that time, it was found that he
was not metabolizing more than fifty grams of proteid per day, while
at the same time his body was essentially in a condition of nitrogen
equilibrium. Dr. Anderson, as the result of his observations on Mr.
Fletcher, concluded that, considering his age, he had never seen an
individual able to work in the gymnasium with fewer noticeable bad
results, since he was able to do the work of trained athletes and not
*“ Physiological Economy in Nutrition,” p. 259.
*See Poputar Science Monraty, June, 1903, p. 127.
THE INFLUENCE OF DIET ON ENDURANCE _ 539
give marked evidences of over-exertion, although not in training. At
the time these experiments were tried Mr. Fletcher weighed one hun-
dred and fifty-seven and a half pounds, and was in his fifty-fourth year.
While, naturally, we have not been able to obtain daily records of
the quantity of food taken by Mr. Fletcher during the past four years,
observations made from time to time have confirmed his general state-
ment that he lives essentially at this same low level of proteid metab-
olism. In June, 1907, Mr. Fletcher was again at New Haven for some
weeks, thus giving us an opportunity to test his rate of nitrogen ex-
change and his physical condition. It was found that the amount of
nitrogenous or proteid food consumed daily never exceeded sixty grams,
and that his nitrogen metabolism averaged not far from seven grams
per day. His body-weight was found to be one hundred and seventy-
seven and a half pounds. We thus had an opportunity of testing the
physical endurance of a man who has for at least nine years practised
a degree of physiological economy in nutrition, which means a daily
consumption of proteid food in amount less than one half that called
for by the ordinary dietary standards. It would seem reasonable to
suppose that if a low nitrogen intake is destined eventually to prove
detrimental to the individual, some sign of such deleterious effect
would manifest itself during this period of time. If, on the other
hand, consumption of proteid food in harmony with the lower dietary
standards which the writer is disposed to advocate on the basis of his
experimental results, is beneficial to the individual, then one might
expect to find a continuance of the same physical vigor noted in the
earlier observations on Mr. Fletcher, in spite of the fact that at this
date the subject was nearly fifty-nine years of age.
Through the kindness of Dr. Anderson, of the Yale Gymnasium,
Mr. Fletcher was subjected to a variety of tests, the outcome of which
is best presented in the words of Dr. Anderson, as given to the writer
in a report made under date of June 28, 1907.
On June 11, 1907, Mr. Fletcher again visited the Yale Gymnasium and
underwent a test on Professor Fisher’s dynamometer. This device is made to
test the endurance of the calf muscles. (Soleus and gastrocnemius.) The sub-
ject makes a dead lift of a prescribed weight as many times as possible. In
order to select a definite weight the subject first ascertains his strength on the
Kellogg mercurial dynamometer by one strong, steady contraction of the muscles
named—and then he finds his endurance by lifting three fourths of this weight
on the Fisher dynamometer as many times as possible at two- or three-second
intervals. One leg only is used in the lift, and, as indicated, the right is usu-
ally chosen.
Mr. Fletcher’s actual strength as indicated on the Kellogg machine was
not quite 400 pounds, ascertained by three trials. In his endurance test on the
Fisher machine he raised 300 pounds 350 times and then did not reach the limit
of his power. Previous to this time Dr. Frank Born, the medical assistant at
the gymnasium, had collected data from 18 Yale students, most of whom were
trained athletes or gymnasts. The average record of these men was 87.4 lifts,
the extremes being 33 and 175 lifts.
It will be noticed that Mr. Fletcher doubled the best record made previous
to his feat and numerous subsequent tests have failed to increase the average
540 POPULAR SCIENCE MONTHLY
of Mr. Fletcher’s competitors. Mr. Fletcher informs me that he has done no
training nor has he taken any strenuous exercise since February, 1907. On
two occasions only during the past year he reports to have done hard work in
emergencies; once while following Major General Wood in the Philippines in
climbing a volcanic mountain through a tropical jungle on an island near
Mindanao for nine hours; and once wading through deep snow in the Hima-
layan Mountains, some three miles one day and seven miles the next day, in
about as many hours. This last emergency experience came through being
caught in a blizzard near Murree, in northern India, at 8,500 feet elevation,
on the way to the Vale of Kashmir. These two trials represented climatic
extremes and Mr. Fletcher states that neither the heat nor the cold gave him
discomfort, a significant fact in estimating physical condition.
Before the trial on the Fisher ergograph, the subject’s pulse was normal
(about 75); afterwards it ran 120 beats to the minute. Five minutes later it
had fallen to 112. No later reading was taken that day. The hands did not
tremble more than usual under resting conditions, as Mr. Fletcher was able to
hold in either hand immediately after the test a glass brimming over with
water without spilling a drop. The face was flushed, perspiration moderate,
heart action regular and control of the right foot and leg used in the test normal
immediately following the feat. I consider this a remarkable showing for a
man in his fifty-ninth year, 5 feet 614 inches in height, weighing 17744 pounds
and not in training.
In order to make a more thorough test of Mr. Fletcher’s powers of endur-
ance under varying degrees of physical strain he underwent on the 17th, 18th,
- 19th, 21st and 22d of June, 1907, the following:
1. Going up 32 steps of a spiral stairway at natural speed.
2. While in the lying position, raising the trunk to a vertical position a
prescribed number of times and continuing as many more times, at will, as
agreeable.
3. While standing with arms upraised to the full bending forward and
downward, touching the floor with the fingers without bending the knees.
4. While holding two 25-pound iron dumb-bells, first flexing the elbows and
then raising the weights to arm’s length above the head.
5. A daily test on the Fisher dynamometer, not for endurance, but for meas-
uring pulse acceleration.
It became necessary to make a change in the character of the movements
on the final day of the test on account of the chafed condition of the subject’s
skin, and we added:
6. “ Running in place,’ with knee lifting forward and upwards to the ex-
treme possible height.
7. Rapid extension of the arms upward, outward and downward.
8. Same as 7, but holding one-pound wooden bells in each hand.
Pulse readings were taken before and after each test, and in the following
report the average pulse for each exercise is given:
After quickly climbing 32 spiral steps, five trials, the average pulse was
115.2 beats to the minute.
After trunk raising, five trials, 50, 60, 70, 100 and 100 times; the latter
two trials in one day, five hours apart; average pulse, 115.2 beats.
After trunk bending, five trials, 60, 100, 150, 200 and 300 times; the latter
two trials in one day, five hours apart; average pulse, 150 beats.
After lifting the 25-pound bells, five trials, 5, 5, 10, 10 and 10 times;
average pulse, 138 beats.
After tests on the Fisher dynamometer, four trials, 50, 60, 60 and 60 times;
average pulse, 120 beats.
After rapid arm work for three minutes, average pulse, 156 beats.
After similar work holding wooden bells (two minutes), average pulse,
156 beats.
After running in place as rapidly and as strenuously as possible for one
minute, average pulse, 144 beats.
After each test the respiration and heart action, while active, were healthy,
and, under such conditions, normal.
There was not the slightest evidence of soreness, stiffness or muscular
fatigue either during or after the six days of the trials. The chafing of the
skin was due to the rubbing of the “tights ” worn while lying down and raising
the trunk. Mr. Fletcher made no apparent effort to conceal any evidences of
strain or overwork and did not show any. He informs me that he felt no dis-
tress whatever at any time.
THE INFLUENCE OF DIET ON ENDURANCE 541
During the thirty-five years of my own experience in physical training and
teaching I have never tested a man who equalled this record. The latter tests,
given in June, 1907, were more taxing than those given in 1903, but Mr. Fletcher
underwent the trials with more apparent ease than he did four years ago. What
seems to me to be the most remarkable feature of Mr. Fletcher’s tests is that a
man nearing sixty years of age should show progressive improvement of mus-
cular quality merely as the result of dietetic care and with no systematic
physical training.
Such a record of endurance as this, especially when made by a man
fifty-nine years of age, can hardly fail to attract our attention. Further,
when it is remembered that the subject of this test was not in training,
the question naturally arises as to the cause of this phenomenal show-
ing. Why a man of fifty-nine years of age, without training, should
be able to far surpass the record for endurance made by young and
vigorous athletes can only be surmised, but it certainly seems plausible
to assume that the explanation is to be found in the careful dietary
habits which this man has followed for the past nine years. In any
event, it is fair to suppose that habits of life, leading to a relatively
small intake of nitrogenous food, are not inimical to a general condi-
tion of physical efficiency and muscular endurance. We may go even
farther and assume that the remarkable showing made by this subject
is due directly to his temperate dietary habits. Mr. Fletcher would
doubtless lay special stress upon his habit of thorough mastication and
of abstaining from eating until the appetite strongly demanded food.
This phase of the subject we need not discuss here. The main point is
that this particular subject has during these nine years made a practise
of consuming daily a quantity of proteid food not more than one half
that demanded by ordinary dietary standards. In other words, his
habits of living have been essentially in accord with the conclusions
arrived at by our experimental studies bearing on the requirements of
the body for proteid food.
We see in these results possible progressive muscular recuperation
after middle life by means of diet alone. If a man by careful atten-
tion to his diet can show progressive gain in endurance and general
efficiency after fifty without systematic training, it is a fact well worth
knowing. In any event, the data afforded by this particular subject
corroborate in striking fashion the conclusions arrived at by laboratory
experimentation, and tend to confirm the view that there is perfect
safety and probable gain to the body in a system of dietetics which
approximates to true physiological requirements and avoids undue
excess.
542 POPULAR SCIENCE MONTHLY
JEAN LOUIS RUDOLPHE AGASSIZ?
By PROFEssOR EDWARD S. MORSE
PEABODY MUSEUM, SALEM, MASS,
EAN LOUIS RUDOLPHE AGASSIZ was born in Motier,
Switzerland, May 28, 1807, and died in Cambridge, December
14, 1873.
He was one of the great naturalists of the world, a student of
Cuvier, beloved by Humboldt, counting every distinguished name in
science as an admirer and idolized by his associates. At the age of
twenty-four he had an international reputation. He had conferred
upon him many degrees, one of which was the doctor’s degree of medi-
cine and surgery, in the preparation for which Von Siebold says he
prepared seventy-four theses on anatomical, pathological, surgical and
obstetrical subjects, also investigations in materia medica, medicina
forensis and the relation of botany to these topics.
He studied at the medical school at Zurich, the University of
Heidelberg and at the University of Munich. Investigations of the
widest diversity in natural science were embodied in 415 papers,
memoirs and books, many in quarto and folio, representing nearly ten
thousand pages and a thousand plates.
Besides his profound attainments as a naturalist he was equally
remarkable as a teacher and most eloquent as a lecturer. Always en-
thusiastic in his own work, he had the further power of inspiring this
enthusiasm in others. At the age of twenty-three, in a letter to his
brother, he said: “ What troubles me is that the thing I most desire
seems to me, at least for the present, farthest from my reach, namely,
the direction of a great museum.” He little foresaw that thirty-one
years from that time he would see the inauguration with pomp and
circumstance of the great museum at Cambridge of which he was the
originator and director. Nor could he have anticipated that his son,
profiting by his engineering and geological studies in the Lawrence
Scientific School with which this museum was affiliated, should use that
knowledge in securing the fortune by which the museum has expanded
far beyond the most ardent imagination of its founder.
In the very prime of his manhood, in the very height of his fame,
1Read at the unveiling of the Agassiz tablet at the Hall of Fame, New
York, May 30, 1907. In the preparation of this brief address I am indebted
to Mrs. Elizabeth Agassiz’s charming tribute to her husband in her “ Life and
Letters of Louis Agassiz” and to Marcou’s “Life of Agassiz.”
JEAN LOUIS RUDOLPHE AGASSIZ 543
he came to our country, and by his enthusiasm, his eloquence, his
winning and democratic ways, he won the hearts of all, and from his
advent here may be dated the wide-spread love of natural science among
the masses.
Agassiz’s contributions as a naturalist covered the entire range of
the animal kingdom. A study of his bibliography exhibits communica-
tions, papers and memoirs on every Cuvierian class. A further study
of this bibliography indicates that, as a young man, he grappled with
some of the most difficult groups of the animal kingdom. ‘The fishes
had been one of the most distracting divisions of the higher animals.
The limitations of their genera, the homologies of their bony structure,
had daunted most zoologists who confined their work to the description
of species. Agassiz’s first important work was the “ Fishes of Brazil,”
based upon material brought home by Martius and Spix. ‘This was
done at the age of twenty-two. The work was written in Latin, dedi-
eated to Cuvier, and illustrated with a folio of ninety plates. At the
age of twenty-three he issued his prospectus of the natural history of
the fresh-water fishes of central Europe, which was completed twelve
years after, accompanied by a folio atlas of forty-one colored plates.
Difficult as was this task, he wrestled with a still more difficult one,
namely, the “ Fossil Fishes,’ and in nine years had completed this
remarkable work in five quarto volumes with 400 colored folio plates.
This publication alone placed him in the front rank of naturalists.
An eminent geologist has written in regard to this work that Agassiz’s
power of classifying fossils and his success in reducing to order thou-
sands of specimens of fishes, a great many of which were perfect puzzles
to every one, was simply marvelous. The echinoderms, with their
complicated covering of curious plates, spines and minute appendages,
formed another most difficult group for study. From the number of
fossil species in the rocks in his neighborhood Agassiz was led to a
minute examination of both living and fossil forms which culminated
in his great monograph of echinoderms with many plates.
The prodigious extent and character of the work done before he
was thirty years old may be appreciated when it is stated that on a
meager salary of $400 a year he established a lithographic press at
Neuchatel, he employed two skilful artists, published a number of
parts of his monograph of the echinoderms, several parts of his fossil
fishes, made a profound study of the glacial phenomena of the Alps as
well as of the geology and paleontology of the Jura and superadded to
all this work the monographing of two molluscan genera, Mya and
Trigonia. Ernest Favre, in his biographical notice of Agassiz, says,
in regard to this period of his life, that he displayed an incredible
energy, of which the history of science offers, perhaps, no other
example.
544 POPULAR SCIENCE MONTHLY
His original way of dealing with subjects is well illustrated in his
studies of fossil bivalve mollusca. It had been customary to describe
the external markings of the shell and when possible the muscular
impressions within. Agassiz soon realized the importance of studying
the interior contour of the shell, and forthwith proceeded, by means
of casts, to bring to light the relations of these fossils with their living
representatives. His maxim was to have abundant material—thou-
sands of specimens, if necessary—for any proper research. In studying
glaciers he literally rode on the back of one for weeks at a time. He
furthermore urged his students to read all that had been written on a
subject before publishing.
Agassiz not only defined many new species of animals in various
classes, but he was continually dwelling on the affinities and homologies
among the various groups; more particularly their classification and
their geographical and stratigraphical distribution. His studies in em-
bryology and his familiarity with the work of Von Baer led him to
recognize the general truth that the young of higher animals in their
respective groups resembled the mature forms of animals lower down
in the scale. From these studies he soon grasped the greater concep-
tion that this principle was carried out in time as well, and that fossil
animals in the early horizons of geological history resembled the
embryonic or early condition of higher animals now living and hence
the idea of comprehensive or prophetic types. This same broad grasp
of fundamental principles was remarkably illustrated in his studies of
glacial phenomena in the Alps. One of his biographers says, “ With
his power of quick perception, his unmatched memory, his perspicacity,
and acuteness, his way of classifying, judging and marshaling facts,
Agassiz promptly learned the whole mass of irresistible arguments
collected patiently during seven years by Charpentier and Venetz, and
with his insatiable appetite and that faculty of assimilation which he
possessed in such a wonderful degree he digested the whole doctrine
of the glaciers in a few weeks,” and added a great many new and
important facts.
From his study of the glaciers of the Alps he soon announced his
belief that the whole northern hemisphere had at one time been covered
by an ice sheet. The various records of this vast sea of ice which had
been interpreted by the most eminent geologists as the result of diluvial
action and flowing mud he rightly attributed to the action of ice. In
the face of the most strenuous and even bitter opposition he trium-
phantly established the former existence of the Great Ice Age. Subse-
quent studies, while modifying the limitation of the great ice sheet,
have only strengthened the views of Agassiz.
Agassiz’s absorbing interest in the structural relations of animals
led him to define with greater accuracy the limitation of various groups.
JEAN LOUIS RUDOLPHE AGASSIZ 545
As a student of the great French naturalist, Cuvier, he became an
eloquent advocate of the existence in nature of four great branches
of the animal kingdom. He was early convinced that branches, classes,
orders, families and genera had as distinct an existence in nature as
species, and his life work was to make clear and rigid their definition.
His eager desire to understand the relations existing between obscure
forms was expressed one day in a private talk to his pupils, when he
earnestly exclaimed, “'The lamprey eel has been my puzzle and my
misery for twenty years.”
Not only in many technical essays, but as an eloquent teacher, he
made these principles of classification so plain that vast audiences were
able to grasp his conceptions. Those who heard his lectures on the
subject will never forget the vivid way in which he impressed upon his
auditors these views emphasized by graphic blackboard drawings.
In his methods of study in Natural History he presented in a
popular form the leading features of his belief in the systematic rela-
tions of animals as embodied in his famous “ Essay on Classification.”
The following quotation from his Methods of Study will indicate the
ideas which were surely preparing the ground for the acceptance of
the theory of evolution:
Man is the crowning work of God on earth, but though so nobly endowed,
we must not forget that we are the lofty children of a race whose lowest forms
lie prostrate within the water, having no higher aspirations than the desire for
food; and we can not understand the possible degradation and moral wretched-
ness of Man, without knowing that his physical nature is rooted in all the
material characteristics that belong to his type and link him even with the
fish. The moral and intellectual gifts that distinguish him from them are his
to use or to abuse; he may, if he will, abjure his better nature and be Verte-
brate more than Man. He may sink as low as the lowest of his type, or he
may rise to a spiritual height that will make that which distinguishes him
from the rest far more the controlling element of his being than that which
unites him with them. P
Not only by such expressions just quoted, but in other statements,
he certainly prepared the way for the more prompt recognition of
Darwin’s views.
Inspired by the belief in the existence in nature of categories of
structure, he strengthened old homologies and established many new
ones. In representing the four Cuvierian branches by schematic lines,
he did not draw a series of lines one above the other, or enclose each
group by sharply defined brackets, but drew these lines, parallel it is
true, but side by side in an ascending scale, slightly overlapping. He
endeavored to indicate by such a diagram his belief, which was correct,
that the higher members of a lower group were more advanced in
structure than the lower members of a group next above. Thus while
the vertebrates were higher as a branch than the articulates, the highest
class of the articulates, the insects, were higher in structure than many
VOL. LXxI.—35.
546 POPULAR SCIENCE MONTHLY
of the lowest vertebrates. In this way he broke up the idea that the
animal kingdom formed a continuous ladder in creation, from the
lowest form to man. This was an important approach to a phylo-
genetic diagram, for it was readily seen that the lower forms in each
great division had closer affinities with each other than existed among
the higher members. In other words, that his schematic lines should
not be made parallel, but should converge below—a genealogical tree
in fact. His generalized or prophetic types lend overwhelming sup-
port to this conclusion.
It has been repeatedly said, and with truth, that Agassiz’s teachings
paved the way for the prompt acceptance of the theory of evolution—
first, because he familiarized the great public with a structural knowl-
edge of the animal kingdom and the affinities existing between the
different groups, and, second, because he demonstrated the recapitula-
tion theory of Von Baer, and added the great conception that the
history of the animal kingdom from the earliest geological horizons
added further proof of these principles. Agassiz came to an environ-
ment well fitted to encourage him. He came to an intellectual center
famous for its leadership in science and letters, but the hearty recep-
tion accorded him in widely separated regions leads to the conviction
that had he settled anywhere in the Country he would have inspired the
same enthusiasm and induced hard-headed legislators everywhere to
have voted large appropriations, and private citizens to contribute
generous sums. It required only his touch to bring into recognition
names among us that had before his magic influence been known only
in limited circles. Men of the caliber of those of 1846 are a thousand
times more widely known to-day, not because of the changed character
of the public press, which celebrates with equal prominence and im-
partiality girl graduates of a public school and men who have revolu-
tionized the world by their inventions, but becouse he made us appre-
ciate the worth of an investigator. Our nation has always believed
in education and public schools, and hence has universally approved of
high endowments for educational purposes. His great plea and one
that had its effect on the legislators was that the museum was an educa-
tional institution, that it was to be opened every day free to the public
and that it was a sound investment, though its dividends were wholly
intellectual. .A few personal reminiscences may be of interest at this
point. In the early part of the civil war, one of our class enlisted and
received an appointment as an officer of the line—the rest of us bought
a fine sword and presented it to him. On showing the sword to
Agassiz, he instantly threw himself into the attitude of a fencer and
became absorbed in thrust and parry, utterly unconscious of our amaze-
ment at his earnestness and skill. We learned afterwards that as a
student at Munich he had not only fought a number of student duels
JHAN LOUIS RUDOLPHE AGASSIZ 547
in which he was always the victor, but on one occasion he had chal-
lenged a whole class, whereupon the best swordsman was selected to
meet him, when he insisted that he had really challenged every member
of the class to fight. After four had crossed swords with him and
been vanquished the remainder were quite ready to retire. Agassiz
with all his genius had no capacity for business and, as he admitted,
was incapable of doing a simple sum in addition; nevertheless, he
plunged into investigations which to carry out involved the expendi-
ture of large sums of money. Mrs. Agassiz in the charming tribute to
her distinguished husband says:
He was frugal in his personal habits. At this very time, when he was keep-
ing two or three artists on his slender means, he made his own breakfast in his
room and dined for a few cents a day at the cheapest eating houses. But where
science was concerned the only economy recognized, either in youth or old age,
was that of an expenditure as bold as it was carefully considered.
While expressing his great appreciation of the many honors given
him by distinguished societies, he seemed to be indifferent to the
certificates of these honors. As an illustration of this indifference I
may cite an experience that a few of us had with an enormous mass of
pamphlets which were unpacked and which Agassiz asked us to classify
and arrange by their respective subjects. Intermixed with these
pamphlets were numerous diplomas, some of them badly wrinkled,
attesting to his election as associate or honorary member of great
societies and academies, university degrees, and, if I remember rightly,
medals of honor also.
Very few are aware of the profound influence Agassiz’s devotion
to his work and his enthusiasm had on the character of Harvard Col-
lege. To apply an expression of Froude, he came in to this staid
college community like a meteor out of the clear sky. One day as he
crossed the college campus I drew a sketch of him: it contradicts every
custom and tradition of the Harvard professor since the foundation of
the college in 1638. On his head a soft hat, in his pockets his hands,
in his mouth a cigar! President Eliot, in his address at the Agassiz
commemorative meeting of the Cambridge Historical Society, said that
Agassiz’s ability in securing from hard-fisted members of the General
Court large appropriations for his museum, excited the envy of other
departmental chiefs. Yet in obtaining these large sums from the
legislature, and from private citizens as well, he finally provoked the
habit of liberal giving to the college as a whole. Thus the college
grew into a university, and the inception of this growth dates from the
advent of Agassiz. His advice was followed in shaping the work of
the Smithsonian Institution. A similar influence must be accredited
to him in enlarging the work of the United States Coast and Geodetic
Survey. Professor Bache, then superintendent, was an intimate friend
548 POPULAR SCIENCE MONTHLY
of Agassiz, and the broadening views of Agassiz on the work of this
important branch of the national government was marked. The Amer-
ican Association for the Advancement of Science is indebted to Agassiz
for the remodeling of the old Society of Geologists and Naturalists
along the line of the British Association, of which he had long been a
member. He became president of the association in 1851. Agassiz,
Bache and Henry were the leading spirits in originating the National
Academy of Sciences. The character of the man is indicated by the
fact that the highest authorities in art, science and literature were im-
mediately drawn to him and found in him a true friend and a charm-
ing companion.
The students associated with Agassiz at the dedication of the
museum in Cambridge with few exceptions became heads of many of
the great museums of the country.
Professor Hyatt was, at the time of his death, custodian of the
Boston Society of Natural History. Dr. Scudder had preceded him
in the same office. Professor Shaler continued at Harvard as professor
of geology and became dean of the Lawrence Scientific School. Pro-
fessor Putnam, one of the originators of the Peabody Academy of Sci-
ence in Salem, and for years director of its museum, is now director of
the Peabody Museum at Cambridge. Professor Verrill has been pro-
fessor of zoology at Yale since his graduation and is director of the
museum at New Haven. Professor Packard, for some years director
of the Peabody Museum at Salem, was at the time of his death, pro-
fessor of zoology at Brown University. Professor Bickmore was closely
identified with the inception of the American Museum of Natural
History in New York, was its first director and continued in the office
for many years, and the writer has for twenty-seven years been director
of the Peabody Museum at Salem.
This record is certainly a credit to the great teacher whose pupils
adhered to the initial impulse imparted to them by their master.
At the age of twenty-two, in a letter to his father, he wrote:
I wish it may be said of Louis Agassiz that he was the first naturalist of
his time, a good citizen, and a good son, beloved by those that knew him. I feel
within myself the strength of a whole generation to work toward this end, and
I will reach it if the means are not wanting.
This boyish prophecy was fully established as attested by the
glorious records of his life.
Note To THE Eprtor: In view of the distracting state of zoological nomen-
clature at the present time with the habit of regarding the slightest deviation
in structure as of generic value with the result that nearly every species has a
separate generic name, it may be regarded as a misfortune that Agassiz could
not have established on a sure and enduring foundation his various categories
of classification. In a conventional manner it would be profitable to adopt his
definitions, even if the groups have no real existence in nature. Only in this
JHAN LOUIS RUDOLPHE AGASSIZ 549
way can relief be secured from a condition which is confusing and exasperating.
As an illustration of Agassiz’s firm adherence to his principles of classifi-
cation so clearly elaborated in his famous essay on the subject, I may be excused
for giving a letter written to me a few days after I had explained to him my
views regarding the systematic position of the Braciopoda:
Your statements of last Saturday haunt me and I can not rest before I
have seen more of your facts concerning the Anneliden affinities of the brachio-
pods. The most telling evidence in your favor? you have never yet alluded to,
at least not in my presence. But I must be cautious and wait till I see and
hear more of your facts. When and where can I see you again? This is not
a question of structural complication.
Very truly yours,
L. AGASSIZ.
CAMBRIDGE, Jan. 2, 1871.
?The italics are his.
550 POPULAR SCIENCE MONTHLY
THE ORIGIN OF SLAVERY AMONG ANTS
Dr. WILLIAM MORTON WHEELER
AMERICAN MUSEUM OF NATURAL HISTORY
Gi itee researches of the past few years have materially changed our
views on the significance and phylogenetic origin of the so-called
slave-making instincts among ants. And although the subject still
involves many unsolved problems, we are now in a position to look back
on its history and marvel at our too implicit confidence in certain
analogies, at our neglect of the basic principles of phylogenetics, and
at the inept questions we so long persisted in asking.
Slavery, or dulosis, is a rare phenomenon among ants. In its pure
form it is known to occur only in two of the several thousand described
species, namely, in the sanguinary or blood-red slave-maker (Formica
sanguinea) and the amazon (Polyergus rufescens). These species,
with their various subspecies and varieties, are peculiar to the north
temperate portions of Europe, Asia and America. The phenomenon
was first discovered by J. Pierre Huber (1810)? and most completely
described by him and by Forel (1874)? These investigators, of course,
fixed their attention on the behavior of the workers. To this aspect of
the subject later writers have added little of importance, and have
merely fallen into a natural error of continuing in the same path as
their illustrious predecessors. This was the case, for example, with
Darwin® and with Wasmann, who for the past quarter of a century has
been observing the slave-making ants of Europe. Huber and Forel
showed that the workers of F’. sanguinea and P. rufescens make period-
ical forays on colonies of ants belonging to the F. fusca group, carry
home the worker cocoons and larve, and permit some of these to hatch
and to survive with them in the same formicary. An eminently preda-
tory species thus comes to live in intimate symbiosis with workers of
an alien species which are said to function as slaves, or auxiliaries.
F’. sanguinea is a powerful and very plastic species which continues to
exercise all the fundamental ant instincts in the presence of its slaves.
It can excavate galleries in the soil, obtain its own food and bring up
its own young. Polyergus, however, is abjectly dependent on its
auxiliaries. It is no longer able to excavate a nest, care for its own
1“ Récherches sur les meurs des fourmis indigénes,” Paris et Genéve, 1810.
2“ Ves Fourmis de la Suisse,” Ziirich, 1874.
*“ On the Origin of Species by Means of Natural Selection,” third edition,
London, John Murray, 1861, p. 244.
THE ORIGIN OF SLAVERY AMONG ANTS 551
offspring, or even to take food, except from the tongues of the alien
workers. It is therefore properly considered as representing a more
advanced stage of parasitism than sanguinea. A few species belonging
to the Myrmicine genera Tomognathus and Strongylognathus seem to
possess analogous instincts, but too little is known of their habits to
enable us to make very definite statements concerning them.
It was, of course, impossible to do more than speculate on the
phylogeny of the slave-making instincts of sanguinea and Polyergus
without a knowledge of the ontogenetic source and development of these
instincts, and as these are social activities, that is, carried out simul-
taneously by a number of cooperating organisms, it was necessary to
learn something about the origin and development of the ant colony
as a unit. The bearing on the origin of slavery of the obvious and
fundamental fact that there is a double ontogeny and phylogeny in
social organisms, namely, one of the colony as well as one of the indi-
vidual, has been appreciated only within the past few years and has
completely changed the aspect of the subject.
In the great majority of ant species the colony arises and develops
in the following manner: The single female, or queen, after mating
during her marriage flight, descends to the earth, divests herself of her
wings, digs a small cell in the soil, or enters some preformed cavity
under a stone or in the tissues of a plant, lays a number of eggs, feeds
the resulting larve with a salivary secretion, and guards and nurses
them till they mature and constitute a brood of diminutive workers.
These now proceed to enlarge the nest, to forage for food, both for
themselves and their mother, and to care for the succeeding broods of
young. The queen thenceforth gives herself up exclusively to feeding
from the tongues of her offspring and to laying eggs. The colony
grows apace, the workers increasing in number, size and polymorphism
with successive broods. Eventually males and virgin queens are pro-
duced, though often only after the expiration of several years, when
the colony may be said to have completed its ontogenetic development.
It will be seen from the foregoing description that the mother
queen lapses from the position of an independent organism with
remarkable initiative to that of a parasite dependent on her own off-
spring. ‘The latter stage in her life is of much longer duration than
the former. ‘This singular ontogenetic change in the instincts of the
queen should be noted, as it foreshadows an important phylogenetic
development exhibiting two different modifications, one of which is
excessive, the other defective, in comparison with the primitive and
independent type of colony formation. The excessive, or redundant,
type is known to occur only among the Attiine ants of tropical America.
These raise fungi for food and are quite unable to subsist on any other
substances. The queens are often very large, especially in the typical
552 POPULAR SCIENCE MONTHLY
genus Atta, and not only manage to bring to maturity a brood of
workers, but at the same time, as von Ihering,* Goeldi® and Jacob
Huber*® have shown, have energy to spare to devote to the cultivation
of a fungus garden. With the appearance of the first brood of workers,
however, these queens, like those of most ants, degenerate into parasites
on their own progeny.
This dependent stage, which, as I have said, is of much greater
duration than the independent stage in the long life of the queen,
leads to a number of phylogenetic developments of the defective type.
These developments first manifest themselves in the adoption of young
queens by adult workers of their own species. A word of explanation
will make this clear. In the colonies of many species of Formicide
we find several queens—in fact, there are comparatively few ants
whose adult colonies do not contain more than one of these fertile
individuals. And a study of the growth of such colonies shows that
the supernumerary queens are either daughters of the original single
queen that founded the colony, or have been adopted from other colonies
of the same species. Hence these queens are either virgins, or have
been impregnated by their own brothers (adelphogamy of Forel) in
the parental nest, or have been captured by the workers and carried
into the nest after descending from their nuptial flight. This forci-
ble adoption leads necessarily to a complete suppression of the inde-
pendent stage in the life of such queens. JI have shown, in another
article, that merely removing a queen ant’s wings with tweezers will
at once call forth the dependent series of instincts, and the same
result is undoubtedly produced when the workers deialate the virgin
or just-fertilized queens of their own or other formicaries. Such
queens, finding themselves surrounded by a number of accomplished
nurses, the workers, proceed at once to act like old queens that have
already established their colonies and brought up a brood.
From this condition of facultative adoption to an obligatory adop-
tion of the queen by workers of her own species is but a step. And
here there are three possibilities: first, the queen can establish a colony
only with the aid of workers of her own species and of the same colony.
This condition seems not to obtain among ants, although it is well
known in the honey-bees. Second, the queen must either be adopted
by the workers of her own species of the same or another colony, or
*“ Die Anlage neuer Kolonien und Pilzgiirten bei Atta sexdens,” Zool. Anz.,
XXI., 1898, pp. 238-245, 1 fig.
** Beobachtungen iiber die erste Anlage einer neuen Kolonie von Atta
cephalotes,’” C. R. 6me Congr. Internat. Zool., Berne, 1905, pp. 457-458, and
*Myrmecologische Mitteilung das Wachsen des Pilzgiirtens bei Atta cephalotes
betreffend,” ibid., pp. 508-509.
°* Ueber die Koloniengriindung bei Atta sexdens,”’ Biol. Centralbl., XXV.,
1905, pp. 606-619, 625-635, 26 figs.
THE ORIGIN OF SLAVERY AMONG ANTS 553
by workers of an alien species. This is the case with many queen ants
that have lost the power of establishing colonies unaided. Third, the
queen must always be adopted by an alien species. This is the
case in certain ants, especially in the highly parasitic forms that have
lost their worker caste. The three conditions here enumerated clearly
represent the transition from parasitism of the queen on the same, to
parasitism on an alien species. The latter alone is commonly regarded
as true parasitism, but the former, which, of course, can occur only
among social organisms or during social stages in the lives of solitary
organisms, is parasitism in every essential particular. It is not con-
fined to ants and other social insects, but has analogies also in human
societies (trusts, “ grafters,” criminal and ecclesiastical organizations)
and in human families (when the parents become senile).
Ant colonies are such closed and exclusive societies that the adop-
tion of strange queens, even of the same species but from alien colonies,
usually meets with insuperable opposition on the part of the workers,
and, as a rule, female ants have to overcome even greater hostility
when they seek adoption in colonies of alien species. There are, never-
theless, at least three different methods of overcoming this hostility
and of effecting an adoption. These may be taken to characterize
three different forms of social parasitism, as follows:
1. Temporary Social Parasitism.—I have given this name to a form
of parasitism which I first observed in our American Formica difficilis
var. consocians." The fertilized female of this ant, quite unable to
found a colony unaided, enters a colony of F'. schaufussi var. incerta
and is adopted with surprising facility. The queen of the latter spe-
cies disappears, in some manner hitherto unknown, and the consocians
brood is reared by the incerta workers, which, after functioning as
nurses, gradually die off and leave a pure consocians colony thenceforth
able to wax large and lead an independent and aggressive existence.
This interesting type of parasitism occurs in most, if not all, Formice
of the exsecta and rufa groups, both in America and in Europe, in a
Myrmicine ant, Aphenogaster tennesseensis (parasitic on A. fulva)
and in a Dolichoderine ant, Bothriomyrmex meridionalis (parasitic on
Tapinoma erraticum). The females of these parasitic species tend
to become greatly reduced in size (F. difficilis and several allied spe-
cies: F'. dakotensis, microgyna, impexa, nepticula, suecica, etc.) or at
any rate to become smaller than the queens of their host species (F.
truncicola, wasmannt, oreas, ciliata, crinita, pressilabris, etc.). This
is clearly an adaptation to a mode of life for which an endowment of
fat and vigorous muscle is not needed, since these various queens do
not have to starve for weeks or even months while bringing up a brood
™« A New Type of Social Parasitism Among Ants,” Bull. Am. Mus. Nat.
Hist., XX., 1904, pp. 347-375.
554 POPULAR SCIENCE MONTHLY
of workers, as in the case of most ants. Santschi has recently made
the illuminating discovery that the queen Bothriomyrmezx, after entering
the nest of Tapinoma, actually decapitates the queen of the host species
and is adopted in her stead. In the other cases the disappearance of
the host queen has not been accounted for. In the case of F. incerta
it is conceivable that she may be ejected from the colony or be killed
by her own workers as in the colonies of the Algerian Monomorium
salamonis infested with Wheeleriella, a case to be considered presently.
For the consocians type of social parasitism Santschi® has suggested the
name “tutelary” parasitism, because the young of this species are
reared by workers older than the parasitic queen.
2. Slavery, or Dulosis.—In this case, as I have shown for the Amer-
ican F. sanguinea,® the female enters a Formica colony belonging to
some variety of the Ff. fusca or schaufusst group, kills or puts to flight
the workers that attack her and hastily appropriates a number of worker
larvee or cocoons. ‘These she carefully guards till they hatch, when
she is surrounded by a loyal brood—of an alien species, to be sure,
but nevertheless both able and inclined to bring up her brood when it
appears. ‘This is “pupillary” parasitism, to use Santschi’s term, since
the nurses, or host ants, are younger than the parasitic queen. In this
case the queen of the host species is probably put to flight at the time
the sanguinea queen enters the nest. Polyergus rufescens colonies are,
perhaps, founded in the same manner, but unequivocal observations on
the queens of this species are still lacking. Not only is slavery, at
least as manifested in sanguinea, distinguished from the other forms
of social parasitism by the aggressive behavior of the queen, but also
by a peculiarity of her own workers. These inherit from their mother
the instinct to enter nests of the host species, and appropriate the
young, but these queen instincts are intimately associated with the
feeding instincts of the workers, as the latter forage in companies like
so many nondulotic ants and consume many of the captured pupe.
Hence the futility of all attempts, like those of Darwin and Wasmann,
to understand slavery from a study of the behavior of the workers alone.
Wasmann”° and Santschi believe that slavery has arisen from tem-
porary parasitism, but although I myself first advanced this opinion,
I have been compelled to abandon it. Wasmann found that a colony of
Formica truncicola, which he has shown to be a temporary social para-
*“ A Propos des Meurs Parasitiques Temporaires des Fourmis du Genre
Bothriomyrmex,” Ann. Soc. Entom. France, 1906, pp. 363-392.
*“ On the Founding of Colonies by Queen Ants, with Special Reference to
the Parasitic and Slave-making Species,” Bull. Am. Mus. Nat. Hist., XXIL.,
1906, pp. 33-105, pls. VIII.—XIV.
*“ Ursprung und Entwickelung der Sklaverei bei den Ameisen,” Biol.
Centralbl., XXV., 1905, pp. 117-127, 129-144, 161-169, 193-216, 256-270,
273-292.
THE ORIGIN OF SLAVERY AMONG ANTS 555
site in all essential respects like F. consocians, would accept and rear
fusca pupe placed in the nest. This, however, is not dulosis. In order
to establish his case he would have to prove that the truncicola workers
can also make periodical forays on fusca for the sake of capturing their
young, and there is no more evidence that truncicola can do this than
there is of similar behavior on the part of consocians. Santschi, if I
understand him correctly, believes that the sanguinea colony restricts
its forays to the scattered fragments of the original fusca colony from
which the queen secured her first supply of auxiliaries, and that the
slave-making expeditions cease when these fragments are exhausted.
This assumption seems to explain the fact that old sanguinea colonies
are sometimes slaveless and pure, like the adult colonies of consocians,
truncicola, ete. It is, however, rendered highly improbable by the fact
that both in Europe and in North America sanguinea colonies not in-
frequently contain slaves of two or more different species or varieties.
There is also some evidence that the same colony may have slaves of
different species at different times. Professor Forel recently showed
me near Morges, Switzerland, a colony of Polyergus which in 1904
contained only F. rufibarbis, but during the current year contained only
F. glebaria. The similarity between old sanguinea colonies and adult
colonies of temporary parasites like F. consocians, is more probably
the result of two very different processes: in the former case of a
languishing or lapsing of the slave-making instincts with age, in the
latter, as I have shown, of a gradual extinction of the tutelary workers.
3. Permanent Social Parasitism.—This occurs in the following rare
and monotypic Myrmicine ants: the European Anergates atratulus,
parasitic on Tetramorium cespitum, the Tunisian Wheeleriella sant-
schit, parasitic on Monomorium salomonis, the North American Hpecus
pergandet (on Monomorium minutum var. minimum), Sympheidole
elecebra (on Pheidole ceres) and Epipherdole inquilina (on Ph. pilifera
coloradensis). All these parasites are unique among ants in lacking a
worker caste, so that they are compelled to live permanently with their
respective host species. Santschi*? has recently shown that the just-
fecundated queen of Wheeleriella enters a Monomorium colony and is
adopted by the workers, which then actually proceed to kill their own
queen. ‘The same conditions probably obtain also in the other cases,
as the parasitic queens are too feeble to assassinate the host queen after
the manner of Bothriomyrmer. In Anergates the degeneration of the
species as a result of permanent parasitism is extreme: the male is
reduced to an apterous, pale and anemic, sluggish, pupa-like creature
which mates in the maternal nest with its own sisters (adelphogamy),
“Forel, “ Meurs des Fourmis Parasites des Genres Wheeleria et Bothri-
omyrmex,” Rev. Suisse Zool., XIV., 1906, pp. 51-69; “ Nova Speco Kaj Nova
Gentonomo de Formikoj,” Internacia Scienca Revus, 4° Jars, 1907, pp. 144, 145.
556 POPULAR SCIENCE MONTHLY
as Forel has shown, and as I was able to observe during the past June
in a large Anergates-Tetramorium colony at Vaux, Switzerland. This
colony contained upwards of 1,000 winged female Anergates and sev-
eral hundred males. Many of the former, placed on the craters of
strange Tetramorium nests, entered these at once. The T'etramorium
workers never killed these females, though they often seized them,
carried them some distance from the nest and cast them away. The
males, too, were not killed, although they were more forcibly and imme-
diately ejected. This behavior is very suggestive, for Tetramorium
workers when placed on the craters of strange colonies of their own
species are at once pounced upon and killed.
It is not improbable that all three of these derivative types, namely,
temporary, permanent and dulotic parasitism, have developed inde-
pendently out of the primitive adoptive type of colony formation, al-
though the details of this development are still very obscure. I have
already given my reasons for believing that slavery did not arise directly
from temporary parasitism. Owing to the excessive specialization of
the permanent parasites and the loss of the worker caste among these
species, it is not so easy to determine whether they have arisen from
temporarily parasitic or from dulotic species, for it is conceivable that
they may have arisen from either, especially as there are other ants,
such as Strongylognathus and Tomognathus, which combine peculiari-
ties of both of these categories. The species of Strongylognathus are
peculiar to the palearctic fauna and, like Anergates, live with colonies
of the extremely abundant and ubiquitous Tetramorium cespitum.
The workers and females have sickle-shaped mandibles like Polyergus.
Two species, S. rehbinderi and S. huberi, as Forel has shown, still pos-
sess vestiges of slave-making instincts. In S. testaceus, however, which
is the common European form, the workers are greatly reduced in
number, showing, as Forel has suggested, that this caste is on the eve
of disappearing completely and thus leading to conditions like those
of Anergates and the other permanent parasites. Wasmann once found
a S. testaceus-Tetramorwum colony containing fertile females of both
species, and during the past June Professor Forel and I found a sim-
ilar colony on the Petit Saléve, near Geneva. This colony contained
a fertile Tetramortwm queen. The much smaller Strongylognathus
queen could not be found, but must have been present, as there were
young pupe of this species in the nest. It is evident in this case, there-
fore, that the parasitic and host queens manage to live side by side
(allometrobiosis of Forel). This condition arose, perhaps, from slavery
or temporary parasitism by a suppression on the part of the Strongylo-
gnathus queen of the instinct to kill or drive away the Tetramorium
queen.
The genus Tomognathus is represented in northern Europe by T’.
THE ORIGIN OF SLAVERY AMONG ANTS 557
sublevis (parasitic on Leptothorax acervorum) and in North America
by ZT. americanus (parasitic on L. curvispinosus). The former was
supposed by Adlerz!? to have only ergatoid, or worker-like females, but
Viehmeyer*® has recently found winged females as well, and I had
previously shown that such individuals exist in our American form.
The workers of both species resemble those of Polyergus and Strongylo-
gnathus in having blunted or obsolete domestic instincts. Adlerz’s
observations seem to indicate that the European Tomognathus may
be dulotic, but they do not altogether preclude the possibility of per-
manent parasitism. As there are no observations on the behavior of
the recently fecundated queens, it is impossible to decide whether the
form of symbiosis exhibited by these ants arose from dulosis or from
temporary parasitism or merely from a condition of xenobiosis like
that of the North American Leptothorar emerson or the European
Formicozenus nitidulus.**
The accompanying diagram will serve to illustrate the phylogenetic
relationships of the different types of colony formation among ants as
formulated in the preceding paragraphs.
The foregoing discussion shows very clearly that a rational ex-
planation of slavery among ants can be found only by recognizing the
phenomenon as a form of parasitism. This conclusion is indeed forced
upon us by a comparative study of the various allied forms of social
symbiosis, of the ontogeny of the ant-colony, that is, of the way in
which it is started and develops, and by a study of the instincts of the
queen. We myrmecologists seem to have been hampered in reaching this
conclusion by a knowledge of the habits of the queen honey-bee. This
insect is peculiar in being permanently and exclusively in the adoptive
2“ Myrmekologiska Studier—III., Tomognathus sublevis Mayr.,” Bih.
Svensk, Vet. Akad. Handl., XXI., Afl. 4, 1896, 77 pp., 1 taf.
#8“ Beitrige zur Ameisenfauna des K6nigreiches Sachsen,” Abhandl. natur-
wiss. Gesell. Isis, Dresden, 1906, Heft II., pp. 55-69, Taf. III.
“Since the manuscript of this article was sent to press I have received
from my friend, Mr. H. Viehmeyer, of Dresden, an interesting communication,
in which he describes his experiments with a number of naturally dealated
and therefore presumably fecundated queens of Tomognathus sublevis, Formica
sanguinea, Polyergus rufescens and F. truncicola. These queens were intro-
duced into strange colonies belonging to the normal hosts of their respective
species. The results obtained with F’. sanguinea and truncicola fully confirmed
my observations on the American sanguinea and consocians. The queens of the
typical European Polyergus rufescens were much more passive than those of
the American subspecies lwcidus, used in my experiments, and were adopted on
the second or third day by the slave species F. rufibarbis, but not by F. fusca
till a much longer period had elapsed. An ergatoid Tomognathus queen placed
in a colony of Leptothorax acervorwm “presented the same picture as san-
guinea, The Leptothorax fled with their larve and then attacked the queen.
During the course of the day, however, the latter managed to kill all of the
Leptothoraz.”
558 POPULAR SCIENCE MONTHLY
Independent Types Dependent Types
Redundant Type
( Attii)
t
Primitive Independent => Facultative Adoption of queen
Type by workers of same species
(Most Formicide)
Obligatory Adoption of queen
by workers of same species
;
Obligatory Adoption of queen
by workers of another species
ae Sa
Temporary Social Parasitism ] Slavery, or Dulosis
(Tutelary Parasitism ) (Pupillary Parasitism)
£ce
Permanent
Social Parasitism
or dependent stage, that is, she is unable to found a colony or even to
exist apart from workers of her own species. And as the queen ant passes
most of her life in similar dependence on her workers, namely, after
establishing her colony, the earlier and more characteristic manifesta-
tions of her instincts and her marvelous initiative and plasticity were
either disregarded or deemed to be of little importance. Attention was
concentrated on the worker slave-makers whose activities represent a
combination of queen and worker instincts. Darwin was thus led to
derive the slave-making from the foraging instincts, and Wasmann—
well Wasmann could only keep repeating or implying that the slave-
making ants made slaves, because they were endowed with a slave-
making instinct—a fine modern example of Moliére’s famous opium
fallacy and of the resources of scholastic methods in zoology! Was-
mann supposed that F’. sanguinea is possessed of an extraordinary
fondness for educating the young of the alien fusca. This was quite
incomprehensible, especially as sanguinea workers are in no respect
degenerate or dependent on their auxiliaries. Since I have examined
many colonies of the European sanguinea, which, as a rule, rears much
fewer auxiliaries than our American forms of the same species, Was-
mann’s assumption seems to me to be preposterous. After the habits of
our temporary parasites and especially after the behavior of the young
sanguinea queens had been studied, the relations of the dulotic species to
particular hosts were easily understood, for the young queens are reared
by workers of a particular host species (fusca or schaufusst or some of
their varieties) or at any rate meet them frequently in the parental
THE ORIGIN OF SLAVERY AMONG ANTS 559
nest. What is more natural, therefore, than that the queens, when
ready to establish their colonies, should seek out the nests of these
same species? The sanguinea workers, too, are reared by auxiliaries
of the same species, so that we are not surprised to find that it is against
colonies of these that the dulotic expeditions are directed. The ab-
sence of any tendency on the part of the sanguinea to rear or adopt the
males and females of the host species may be due merely to a lack of
familiarity of the slave-makers with these sexual forms, which in all
probability are characterized by a peculiar odor unlike that of the co-
specific workers.
Thus is dissipated much of the mystery with which the subject of
slavery has been invested, and the phenomenon becomes intelligible as
a form of parasitism in which the slaves are really the host. The
dulotic ants differ from the temporary and permanent parasites not
only in the peculiarity of the worker instincts, but also as representing
parasites with a synthetic host. In other words, the workers, when
they snatch the larve and pupe from different nests of one or more
varieties of F. fusca or schaufussi, are actually constructing a unitary
colony out of fragments of several colonies of the host species. This
peculiarity, as I have shown, arises from the inheritance of female
instincts by the workers and a fusion of these with the foraging in-
stincts which the worker slave-makers share with this caste in many
other Formicide. Santschi expresses a similar opinion when he says:
“In fine, slavery reduces itself to a form of pupillary parasitism that
perpetuates and extends itself beyond the confines of the nest.” His
distinction of tutelary and pupillary parasitism is useful, as it calls
attention to a more active and a more passive form of this phenomenon,
but the distinction should not be overworked. Although the tutelary
form would seem to lead more readily to permanent social parasitism
with all its attendant degenerative characters, we must remember that
Polyergus, though very passive in the hands of its slaves, is extremely
aggressive when plundering the nests of the host species, whereas spe-
cies like F’. consocians and truncicola, though very passive in the earliest
stages of colony formation, are very aggressive as soon as their colonies
have emancipated themselves from the host species. The pupillary
and tutelary types are, moreover, already foreshadowed as consecutive
ontogenetic stages in the behavior of most ant-queens, for the inde-
pendent stage in colony formation is pupillary, whereas the closing
years of the queen’s life are passed in a condition of tutelary parasitism
on her own offspring and species.
560 POPULAR SCIENCE MONTHLY
A TRIP AROUND ICELAND.
By L. P. GRATACAP
AMERICAN MUSEUM OF NATURAL HISTORY
III
EYKJAVIK was reached; the capital of Iceland, that first old
landfall for the anxious vikings, who found that when they
threw over their Lares and Penates those undiscerning deities floated
ashore upon this inauspicious coast. The choice has a certain pictorial
value, but for commercial purposes those old gods should have exer-
cised more discretion, and commercial interests are beginning to weigh
overpoweringly in this arctic metropolis. To the immediate north the
snow-crowned Esja shines, to the southeast the sturdy eminences of the
Lénguhlitharfiall swim upward over the horizon; and still farther
south the volcanic peaks of Krisuvik, where the sulphur quarries are.
Then to the northwest like a titanic gleaming gem Snaefells with its
ice mantle draws to its overmastering beauty every eye. But this in
clear weather, and clear weather is not a very plentiful article in Ice-
land. In bad weather, which is a trifle more common, the steamers
may keep their imprisoned passengers for four days before they can
land. The harbor is called so by a pleasant boreal fiction, which is
not creditable to Icelandic hospitality. It is expected that next year
an appropriation of some $400,000 will be granted permitting Mr.
Smith, the official harbor surveyor of Norway, to execute his accepted
plans for improving these inclement conditions.
The town of Reykjavik contains about ten thousand inhabitants.
It has doubled its size in five years. Stores have developed, and the
caravans from the interior can return home laden with the furnishings
of a modern household, not omitting wall paintings and bath-tubs.
It is scattered over a hilly surface with its more pretentious buildings
displayed near the water front and around the square where the statue
of Thorwaldsen faces the Althing (Parliament) house. The buildings
are of wood (all brought from Denmark, Norway or Scotland), fre-
quently sheathed with corrugated iron, with foundations, in many
cases, of concrete blocks. Coals from Scotland are shipped here in
great quantities, and the houses are thus provided with comfortable
heating equipments. Some of the houses are also stuccoed. At
times there is an architectural elaboration noted, but the houses are
usually plain and serviceable. Two bank buildings of concrete blocks
(the manufacture of these blocks is carried on in Reykjavik) gave its
business street a very substantial expression, and two hotels continued
TRIP AROUND ICELAND 561
ANSTOR ST., REYKJAVIK.
the agreeable impression that Reykjavik was becoming popular.
Photographers are kept busy flattering the vanity of its handsome sons
and fair daughters; book-stores supply you with literature of all ages,
from “ Uncle Tom’s Cabin” to the last verses of Thorsteinson; a
public library of seventy thousand volumes (in which the Bulletin of
the American Museum of Natural History may be found) will furnish
the visitor with undreamed-of learning, and a cathedral with an organ,
a bishop and a choir will save his feet from erring on Sunday; while
his incredulous eyes will be shown a public school, a Latin school, a
ladies’ seminary and a literary club. The last touches of modernity
are given in a theater and a jail. Surely those long winter nights,
which scarcely leave any day at all, must approach, in the autumn
months, shorn of some of their worst terrors. And then there is the
coffee house, where coffee, only excelled in Arabia, can be obtained,
and languidly sipped to the accompaniment of popular songs on the
piano, or in the companionship of garrulous friends. And there is the
chess club, which meets on Athalstraeti!
There are two museums in Reykjavik: one a museum of natural
history (open one hour a week) and a museum of antiquities—the
VOL, LXXI.--36.
562 POPULAR SCIENCE MONTHLY
THE OXAIA Foss, THINGVALLIR.
latter over the bank. Both contain admirable specimens and both, it
is projected, will be housed with the library in a new public building,
where room will be provided ample enough to make these three “ foun-
dations ” an ornament to the city.
The museum of antiquities has unquestionable importance. Here
are very old altar pieces (Christianity was introduced into Iceland in
1000), old vestments and church paintings, with strange archaic
buckles, girdles of brass, silver and gold, rugs, carved boxes, old cab-
inets, swords (many of them strips of iron rust), poignards, stone
pestles and mortars, saddles, bits and bridles, lamps and chairs.
The crowning group of objects is a collection of most curious hand
mangles, or rollers, for linen fabrics. These “rullur” are made of
wood and most elaborately carved, having one uniform form but differ-
ing in size and in ornamentation. Some, two and a half feet long,
are covered from end to end with carvings, not grotesque, but simple,
and rudely or quaintly symbolic and decorative. Glyptic skill has
been characteristic in Iceland. J saw some excellent modern examples
in snuff horns made from ivory, with carved motifs taken from the Ice-
landic mythology. It seems probable that this ability prevailed more
TRIP AROUND ICELAND 563
ALMANNAJA WALL AND ROAD.
in the past than to-day, and may have developed as a recreative feature
in the long periods of isolation and idleness. Examples of this old
art are difficult to get, and high prices are paid for authentic specimens.
I obtained an antique lamp, in hammered brass from Olafur
Sveinsson, the goldsmith and jeweler (5 Austur St., Reykjavik), who
deals in every variety of Icelandic curiosities, including belts, brooches,
head-dresses, mantles, snuff boxes, bed boards, buttons, bracelets, drink-
ing horns, ete. I paid about four dollars for my little fish-oil lamp
and prize it greatly.
From Reykjavik the excursions into the interior are most usually
made, though, as I described in a former number, they may begin from
the east or northern ports. But the guides and ponies come from
Reykjavik and are sent overland. The preparations for a long sojourn
in the interior are formidable, especially when the trip contemplated is
beyond the zone of habitation and brings the traveller into the tenant-
less tracts of the middle island. JI had no such ambitions or expensive
schemes to consider. The ponies represent the vehicle of transport,
and none to the accomplished rider could be more acceptable. Their
endurance is phenomenal. ‘Two are allotted to each rider, in order to
564 POPULAR SCIENCE MONTHLY
ALMANNAJA, ASCENDING ROAD BETWEEN WALLS.
change animals. Halts are frequent, where the ponies are considerately
treated, and where pasturage is attractive. The ponies feed a little,
are remounted, and the journey is continued. Pack ponies carry
provisions, clothing and outfit. The guides are unusually intelligent
men, many of them teachers during the winter, and are resolute,
capable, resourceful and safe. They speak English and can thread
the devious trails with certainty. In many instances local guides are
necessary, as in the crossing of the more difficult rivers.
At last my arrangements were completed, and, with some hastily
and not very discerningly purchased “ canned goods” (they were Eng-
lish and Danish preparations), and some oil-skin clothes and a pair
of loaned water-tight boots, my small cavalcade of fine ponies departed
for Thingvallir, up Austur street, bound for the distant Gullfoss. As
a most unpractised horseman, I had felt apprehensive about my ap-
pearance on one of these jogging ponies, and from the ill-concealed
mirth amongst the old women on their way to the public laundry on the
outskirts of the town, my worst suspicions were justified. On my
return to Reykjavik eight days later, I feel no compunctions in stating,
I was unnoticed, an excellent testimonial to my improved horseman-
TRIP AROUND ICELAND 565
CAIRNS, TO MARK PATHS IN THE W1NTER SNOWS.
ship. The easy and instantaneous control over these active animals by
the Icelander is admirable. They are all excellent riders, and with
bare back or saddle and stirrups shoot over rock-strewn fields with
confidence. These ponies are most gregarious and mine would whinny
dismally when left far behind by my precipitate companion.
The road to Thingvallir from Reykjavik is excellent, and in places
is receiving reinforcement by stone blocks and gutters. It runs for
twenty-eight miles (seven Danish miles) and can be used-by bicycles
and vehicles. ‘Traveling in Iceland is slowly undergoing helpful trans-
formations; the discomforts and, in a measure, the perils diminish
with the introduction of roads and bridges though this need not dis-
courage any one who is looking for adventure. The jokulls will cer-
tainly repel coercion, and many of the rivers at their periods of trans-
porting rage throw off the yoke of bridges. Let the young men, who
wish adventure and exposure, suffer from no qualms of disappointment
over the disappearance of either from Iceland.
The region first encountered was a hummocky moorland with stony
tracts and distant encircling mountain ranges. It grew rapidly more
wild and interesting. We reviewed a rolling country with distant hills,
near-by vales and valleys, and breezy brows of rising land—an austere,
566 POPULAR SCIENCE MONTHLY
THE ALMANNAJA.
lonely country, full of light, and swept over by cold winds. Then out
again we galloped over more spacious areas with intermediate black
scoriaceous hills, and here and there in green valleys a farm house.
There were lakes and morassy heavily-bedded depressions about us with
stony sheets of rubble and wind-swept acres of upland, in which we
saw grouse and plover, the latter in numbers. An occasional raven
croaked ominously, or protesting curlews whistled at our feet. There
were many verdant spots and many more barren ones with the distant
snow-covered ranges always in sight. ‘The Thingvallir plain is a
remarkably undulating or rather abruptly hilly amphitheater with a
rising and falling road.
At last, after a passage across a breezy divide, we came in sight
of the great vain or lake of Thingvallir. From this point on the
journey gained more and more in interest, and crossing dried-up or
running stream-beds, and under high banks, with the mountains,
beyond the lake, looming up with peaked summits and snow-gullies,
with the occasional appearance of a green oasis about some farmhouse,
we drew nearer and nearer to our destination, I with great relief, by
reason of a badly bruised and suffering body.
The little red-roofed church, distinguished far off amongst its
TRIP AROUND ICELAND 567
CHASM AT THE LOGBERG,
gray and green fields, was seen close at hand, the road began a descent,
and, in an instant, the portentous gateway of the Almannaja, like an
Egyptian facade loomed gloomily in our path. We moved slowly—
awed into temporary silence—down the gradually sloping road between
the frowning walls, over a bridge spanning a brawling torrent by a
clear, deep pool, and before us, on a ragged plain, which held a
fortuitous sort of herbage, fighting its way against the discourage-
ments of a stony soil, was the Walhalla Hotel. To me, at least, it
assumed all the radiance of that mythical paradise.
The next day was brilliantly clear, and we studied our locality. It
presented a wonderful geological phenomenon. It was a broad valley
of depression, between mountains, rifted by long parallel chasms, which
crossed it in the direction of its longer diameter, and which were
easily descried from a considerable distance, by the furrows they pre-
sented in the landscape, by reason of the unequal elevation of their
bounding walls. There were some eight of these remarkable fissures—
the sundered seams in one vast flooring of erupted rock—and many
of them, as that one in which the ancient Logberg stood, contained
softly flowing streams of water.
WILBUR OTIS ATWATER,
Late Professor of Chemistry in Wesleyan University, who attained eminence for his inves-
tigations in metamerism and with the respiration calorimeter.
THE PROGRESS
OF SCIENCE
569
THE PROGRESS OF SCIENCE
THE RISE IN PRICES AND THE
SALARIES OF SCIENTIFIC MEN
THE extraordinary rise in prices
which has occurred in the course of
the past ten years—amounting to about
fifty per cent. according to the index
numbers of the Hconomist—is a seri-
ous matter for those who are depend-
ent on fixed salaries, as is the case
with most scientific men. It is also
an obstacle in the way of the advance
of science. Those who should be en-
gaged in scientific research may be
compelled to give part of their time to |
securing the incomes that are needed;
some may be diverted altogether from
the scientific career, while others may
hesitate to enter it. There has always
been a kind of panmixia among scien-
tific workers, a lack of severe selection
of the most fit. The number of those
in this country who have undertaken
scientific work does not considerably |
exceed five thousand, and those who do
not prove competent to do work of |
fortunate that we can not adopt a more
value are likely to retain their posi-
tions in institutions of learning or in
the government service. Should there
be a negative natural selection drawing
the ablest men away from a scientific
career, it would be a serious matter,
the future of our civilization depending
largely on the comparatively small
group of scientific men.
It is a curious fact that it is largely
scientific discovery that has lessened
the incomes of scientific men. Prices
depend on all sorts of conditions, psy-
chological as well as material, but in
the end they are determined by the
value of gold and the value of gold |
depends on the cost of production. The
cyanide process and other advances in
metallurgy, mining and geology. as well
as the discovery of new fields, have
greatly lessened the cost of producing
gold. The world’s production of gold
in 1896 amounted to 202 million dol-
lars, in 1906 to 400 million dollars, or
almost double. Unlike the wheat crop,
the annual output of gold is not con-
sumed, and the supply is probably in-
creasing more rapidly than industry
and commerce, while at the same time
relatively greater use is made of gov-
ernment notes and bank checks. The
decreased cost of producing gold tends
to make all prices higher, and wages
and debts are payable in value less
than had been agreed. If the cost of
production and the demand for gold
should remain constant, there would
be an adjustment of the supply; and
prices and wages would remain con-
stant on a higher level. But wages
| reach this level more slowly than most
| prices, and scientific men and others
with fixed salaries suffer. As a matter
of fact, both the production of gold and
the demand for it will remain subject
to great fluctuation, and it seems un-
constant standard of value, such as
would be obtained by averaging to-
gether all staple commodities produced
in a series of years, and letting the
government issue paper currency pay-
able in these commodities and secured
by the property of the nation.
THE MARIA MITCHELL
MEMORIAL
Maria MITCHELL, professor of as-
tronomy at Vassar College from 1865
to 1888, a leader in her science, in the
higher education of women and in the
movement extending the independence
of women, was born in Nantucket in
1818, and was buried there in 1889.
The Nantucket Maria Mitchell Asso-
ciation, organized in 1902 purchased
at that time Miss Mitchell’s birth-
ELL.
MITCH
MARIA
SW fe
SCIENCE
THE PROGRESS OF
_
ue
-
rome wea
tt -
THE MARIA MITCHELL NANTUCKET MEMORIAL.
INTERIOR OF THE MEMORIAL.
572
place. The building has been fitted up
as a center of scientific interest for the
community, classes in astronomy being
there conducted under the general di-
rection of Miss Cannon, of the Harvard
Observatory. This summer Professor
Mary W. Whitney, a student of Maria
Mitchell and her successor at the Vas-
sar Observatory, spent a week at Nan-
tucket, where she gave lectures and
informal talks on Maria Mitchell and
recent work in astronomy. It is in-
tended to use the building for natural
history as well as astronomy.
In March of the present year a five-
inch equatorial telescope, made by
Alvan Clark and formerly owned by
Miss Mitchell, was given to the asso-
ciation, and it is proposed to build an |
observatory that will properly house
the telescope in a fire-proof building.
Efforts to complete this building, to |
enlarge the equipment and to maintain
the work are being made, and those |
who are interested in the work of
Maria Mitchell or in a scientific insti-
tution such as is planned for Nan-
tucket are invited to join the associa-
tion, which they can do by paying one
dollar annually or ten dollars as a
life member.
SCIENTIFIC ITEMS
WE record with regret the death of
Professor Lucien M. Underwood, head
of the department of botany of Co-
lumbia University; of Dr. Edward
Gardiner, of the Marine Biological
Laboratory; of M. Maurice Loewy, di-
rector of the Paris Observatory, and
of Mr. Howard Saunders, the British
ornithologist.
A MEMORIAL meeting in honor of the
late James Carroll was held by the
Johns Hopkins Hospital Historical
Club on October 14. Addresses were
delivered by Drs. William H. Welch, ,
POPULAR SCIENCE MONTHLY
Howard A. Kelly and William S&S.
Thayer.—The Geographical Society of
Philadelphia will hold a meeting on
November 6, in memory of the late
Angelo Heilprin, founder of the society.
—Friends of the late Walter Frank
Raphael Weldon, formerly Linacre pro-
fessor of comparative anatomy at Ox-
ford, have offered the university a sum
of about £1,000 for the foundation of
a prize, with a view to perpetuate the
memory of Professor Weldon and to
encourage biometric science.
THE Royal Society has this year
awarded its Davy medal to Dr. E. W.
Morley, emeritus professor of chem-
istry, Western Reserve University, and
its Copley medal to Dr. A. A. Michel-
son, professor of physics, the Univer-
sity of Chicago.—Dr. Richard Wett-
stein, Ritter von Westerheim, professor
of systematic botany at Vienna, has
been elected president of the Associa-
tion of German Men of Science and
Physicians for the meeting to be held
next year at Cologne.
THE American Association for the
Advancement of Science meets at the
University of Chicago during convoca-
tion week, which this year begins on
December 30. Together with the Am-
erican Association meet the Society of
American Naturalists and the special
societies devoted to anthropology, bot-
any, chemistry, mathematics, physiol-
ogy, anatomy, psychology, geography
and entomology. It is to be hoped that
all who are able will plan to attend this
meeting—not only professional men of
science, but also readers of this journal
who are interested in the progress of
science. At the New York meeting last
year, there were about 2,000 scientific
men in attendance, and there is every
reason to believe that the Chicago
meeting will be equally important.
INDEX 5
~I
w
INDEX.
NAMES OF CONTRIBUTORS ARE PRINTED IN SMALL CAPITALS
Acassiz, G. R., Mars as seen in the
Lowell Refractor, 275
Agassiz, What we owe to, Burr G.
WILpER, 5; Jean Louis Rudolphe
Agassiz, Epwarp S. Mors, 542
Age, Growth and Death, the Problem
of, CHARLES S. Minot, 97, 193, 359,
455, 509
American, Philosophical Society and
Benjamin Franklin, 92; Girls, Health
of, NELLIE COMMINS WHITAKER, 234
ANDERSON, Ropert, The Great Jap-
anese Volcano Aso, 29
Ants, the Origin of Slavery among,
WILLIAM Morton WHEELER, 550
Appalachian Mountains, South, The
Heart of the, SpENcER TRoTTER, 149
Argyle, the Duke of, 189
Asiatic Museums, Notes on, BASHFORD
Dean, 481
Aso, the Great Japanese Volcano, Ros-
ERT ANDERSON, 29
Balsam Peaks—the Heart of the South
Appalachian Mountains, SPENCER
TROTTER, 149
Benjamin Franklin and the American
Philosophical Society, 92
Bicentenary of the Birth of Linnezus,
Celebration by the New York Acad-
emy of Sciences, 94
Botton, FREDERICK E., Some Ethical
Aspects of Mental Economy, 246
Bonp, FREDERIC Drew, Poe as an Evo-
lutionist, 267
British Association for the Advance-
ment of Science, Address of the
President of the Engineering Sec-
tion, SyLvaAnus P. THompson, 337
Brown, Ropert MarsHary, Recent
Legislation on the Mississippi River,
Byers, CHAarLES AtMA, Control of the
Colorado iver regained, 50
Carnegie Foundation, Retiring Allow-
ances of, and the State Universities,
95
CHAMBERLAIN, ALEXANDER F., Recent
Views of the Origin of the Greek
Temple, 448
Children, School, the Sacrifice of the
Eyes of, Water D. Scort, 303
Chinaman and the Foreign Devils,
CHARLES Braprorp Hupson, 258
CHITTENDEN, RusseLt H.,. The Influ-
ence of Diet on Endurance and Gen-
eral Etficiency, 536
CLELAND, HERDMAN F., Some Little-
known Mexican Volcanoes, 179
CocKERELL, T. D. A., and F. B. R.
HELLEMS, A Scientific Comedy of
Errors, 217
Colorado River, Control
CHARLES ALMA Byers, 50
Conscience, The Physical, Reawakening
of the, RicHarp Cote Newron, 156
regained,
DEAN, BasHrorp, Notes
Museums, 481
Death, Age, Growth and, the Problem
of, CHARLES S. Minor, 97, 193, 359,
455, 509
DeLAND, FRED, Notes on the Develop-
ment of Telephone Service, 21, 139,
226, 313, 433
Diet, the Influence of, on Endurance
and General Efficiency, Russett H.
CHITTENDEN, 536
on Asiatie
EASTMAN, CHartes R., Illustrations of
Medieval Earth-science, 84
Elements, Transmutation of, and Ra-
dium Emanation, 287
Endurance and General Efficiency, the
Influence of Diet on, RussetL H.
CHITTENDEN, 536
Engineering Section of the British As-
sociation, Address of the President,
SyLvanus P. THoMpson, 337
Errors, Scientific Comedy of, T. D. A.
CocKERELL and F. B. R. HELLEMs,
217
Ethical Aspects of Mental Economy,
FREDERICK E. Boiron, 246
Eugenics, Probability the Foundation
of, FRANCIS Gatton, 165; National,
The Scope and Importance to the
State of the Science of, Karn PErar-
son, 385
Evolutionist, Poe
Drew Bonn, 267
Eyes of School Children, Sacrifice of,
WALTER D. Scort, 303
as an, FREDERIC
Fertility and Genius, Cartes Kasset,
452
Foreign Devils, the Chinaman and,
CHARLES BrApForp Hupson, 258
574 POPULAR
France, The Institute of, and Some |
Learned Societies of Paris, EDWARD |
F. WILLIAMS, 439
|
GaLron, Francis, Probability the
Foundation of Kugenics, 165
Girls, American, Health otf, NELLIE |
CoMMINS WHITAKER, 234
GratacaP, L. P., A Trip around Ice-
land, 289, 420, 560
Greek Temple, Recent Views of the
Origin of the, ALEXANDER F. CHAM-
BERLAIN, 448
GREGoRY, WILLIAM K., The Place of
Linneus in the Unfolding of Science,
za
Growth, Age and Death, the Problem |
of, CHARLES S. Minot, 97, 193, 359,
455, 509
Health of American Girls, NELLIE)
CoMMINS WHITAKER, 234
Hetteos, F. B. R., and T. D. A. Cock- |
ERELL, A Scientific Comedy of Er-
rors, 217
Helmholtz, Hermann von, 283
History of Science, The Place of Lin-
neus in the, ARTHUR O. LOVEJOY,
498
Hupson, CHARLES Braprorp, The
Chinaman and the Foreign Devils,
258
Hygiene, The Newer, Witrrep H. Man-
WARING, 66
Iceland, A Trip around, L. P. Grava-
CAP, 289, 420, 560
Illustrations of Medieval Earth-science,
CHARLES R. EASTMAN, 84
Institute of France and Some Other
Learned Societies of Paris, Epwarp
F. WILLIAMS, 439
Japanese Volcano Aso, ROBERT ANDER-
son, 29
Kalm, Peter, Travels, SpENcER TROT-
TER, 413
KASSELL, CHARLES, Fertility and Ge-
nius, 452
Legislation, Recent, on the Mississippi |
River, Rospert MArsHALL Brown,
131
Light, Speed of, and its Wave-length,
188
Linneus, Bicentenary of the Birth of, |
Celebration by the New York Acad-
emy of Sciences, 94; the Place of,
in the Unfolding of Science, WIL- |
LIAM K. Grecory, 121; and the Love
for Nature, Epwarp K. PuTNAM,
318; The Place of, in the History
of Science, ARTHUR O. LovEJoy, 498
Linnean Celebrations in Sweden, 284 |
SCIENCE MONTHLY
Lovesoy, ARTHUR O., The Place of Lin-
neus in the History of Science, 498
Lowell Refractor, Mars as seen in the,
G. R. AGaAssiz, 275
Man, Forms of Selection with reference
to their Application to Man, G. P.
WATKINS, 69
MANWARING, WILFRED H., The Newer
Hygiene, 66
Mars as seen in the Lowell Ret.-actor,
G. R. AGassiz, 275
Medieval Earth-science, Illustrations
of, CHARLES R. EAstTMaAn, 84
Mental Economy, Ethical Aspects of,
FREDERICK E. Botton, 246
Mexican Volcanoes, Some Little-known,
HERDMAN I. CLELAND, 179
Minot, CuHarues §., The Problem of
Age, Growth and Death, 97, 193, 359,
455, 509
_Mississippi River, Recent Legislation
on the, Ropert MarsHaLtL Brown,
131
| Mitchell, Maria, Memorial, 569
Morse, Epwarp §., Jean Louis Ru-
dolphe Agassiz, 542
Mortality Statistics, 475
Mountains, South Appalachian, The
Balsam Peaks, SPENCER TROTTER, 149
Museums, Asiatic, Notes on, BASHFORD
DEAN, 481
National, Observatory, Early Move-
ments in the United States for a,
CHARLES OSCAR PAULLIN, 325; Eu-
genics, The Scope and Importance to
the State of the Science of, KARL
PEARSON, 385
Nature, Linné and the Love for, Epb-
warp K. Putnam, 318
NEwToN, RicHarD CoE, The
awakening of tne Physical
science, 156
New York Academy of Sciences, Cele-
bration of the Bicentenary of the
Birth of Linnzus, 94
Re-
Con-
Observatory, National, Early Move-
ments in the United States for a,
CHARLES OSCAR PAULLIN, 325
PapiIni, GIOVANNI, What Pragmatism
is like, 351
Paris, Learned Societies of, and the
Institute of France, Epwarp IF. WI1-
LIAMS, 439
PAULLIN, CHARLES Oscar, Early Move-
ments in the United states for a Na-
tional Observatory, 325
PEARSON, Kart, The Scope and Impor-
tance to the State of the Science of
National Eugenies, 385
Peter Kalm’s Travels, SPENCER TROT-
TER, 413
INDEX 575
Philosophical Society, American, and | Slavery among Ants, The Origin of,
Benjamin Franklin, 92 WititramM Morton WHEELER, 550
Physical Conscience, The Reawakening Speed of Light and its Wave-length,
of, RicHARD COLE NEWTON, 156 188
Poe as an Evolutionist, FREDERIC DREW State Universities, and the System of
Bonn, 267 Retiring Allowances of the Carnegie
Porncark, H., The Value of Science, 53 Foundation, 95; the Growth of, 477
Pragmatism, What it is like, GlovANNI Statistics, Mortality, 475
PaPINI, 351 Strone, W. W., Radioactivity of Or-
Prices, the Rise in, and the Salaries of dinary Substances, 524
Scientific Men, 569 Sweden, Linnean Celebrations in, 284
Probability, the Foundation of Eugen-
ics, FRANCIS GALTON, 165 Telephone Service, Notes on the Devel-
Progress of Science, 92, 188, 283, 379, opment of, FRED DELAND, 21, 139,
475, 569 226, 313, 433
PurnaM, Epwarp K., Linné and the Temple, Greek, Recent Views of the
Love for Nature, 318 Origin of the, ALEXANDER F. CHam-
BERLAIN, 448
THOMPSON, SYLVANUS P., Address of
the President of the Engineering Sec-
tion of the British Association for
the Advancement of Science, 337
Transmutation of the Elements and
Radium Emanation, 287
TROTTER, SPENCER, The Balsam Peaks
—the Heart of the South Appala-
chian Mountains, 149; Peter Kalm’s
Radioactivity of Ordinary Substances,
W. W. STRONG, 524
Radium Emanation and the Transmu-
tation of the Elements, 287
Reawakening of the Physical Con-
science, RIcHARD CoLE NEwToNn, 156
Refractor, the Lowell, Mars as seen in
the, G. R. Acassiz, 275
Retiring Allowances of the Carnegie eae
Foundation and the State Waivers Travels, 413
ties, 95
Universities, State, The Growth of the,
477
University Salaries, 58
River, Mississippi, Recent Legislation
on the, RoBerRT MARSHALL Brown,
131; Colorado, Control regained,
‘HAR ALMA B 5 = : Paar
Cuartes ALMA Byers, 50 Value of Science, H. PorIncAaRE, 53
| Voleano, The Great Japanese, Aso,
Sacrifice of the Eyes of School Chil- ROBERT ANDERSON, 29
dren, WALTER D. Scott, 303 Voleanoes, Mexican, Some Little-
Salaries of Scientific Men and the Rise known, HERDMAN F. CLELAND, 179
in Prices, 569
Selection, Forms of, with reference to | WATKINS, G. P., The Forms of Selec-
their Application to Man, G. P. tion with reference to their Applica-
WATKINS, 69 tion to Man, 69
Science, The Value of, H. Porncaré, | Wave-length and Speed of Light, 188
53; the Place of Linneus in the Un- | Wealth of the United States, 382
folding of, Wirrtam K. GrecGory, | WHEELER, WILLIAM Morton, The Or-
121; the Place of Linneus in the igin of Slavery among Ants, 550
History of, ARTHUR O. LovEsoy, 498 | WHITAKER, NELLIE ComMMINS, The
Sciences, New York Academy of, Cele-| Health of American Girls, 234
bration of the Bicentenary of the | WILpER, Burt G., What we owe to
Birth of Linnzus, 94 | Agassiz, 5
Scientific, Items, 96, 191, 287, 384, | Wir~rams, Epwarp F., The Institute
479, 572; Comedy of Errors. T. D. A.| of France and Some Other Learned
CocKERELL and F. B. R. Hettems,| Societies of Paris, 439
217 |
Scorr, WALTER D., The Sacrifice of the
Eyes of School Chilaren, 303
Zoological Congress, The Seventh In-
ternational, 379
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THE
?OPULAR SCIENCE
MONTHLY.
EDITED BY J. McKEEN CATTELL
> CONTENTS
ie Problem of Age, Growth and Death. Proresson CoHarites§. Minor 97
he Place of Linnzus in the Unfolding of Science: His Views on the
Class Mammalia. Wiir1am K.Grrcory . ....... . 121
Recent Legislation on the Mississippi River. RosBert Marsuatt Brown 131
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robability—The Foundation of Eugenics. Dr. Francis GAtton. . . 165
tome Little-known Mexican Volcanoes. Proressorn HeERDMAN F, CLELAND 179
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; Does the Speed of Light depend upon its Wave-length ? ; The Duke of Argyle ;
MARES POOR, So SS ele, fe gale Se NERS OR eae oh ote KE EAS see! Eee
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