February 16, 1894. 
activity in that science and by his labors extending to the 
present day has done much to further its advance. His 
first publications date from 1835 and include many valuable 
memoirs, but in this country he is probably best known 
through his treatise on chemistry in six volumes, and 
through his magnificent chemical encyclopedia. Probably 
his most recent work is that published but a short time 
ago in conjunction with a pupil, M. Verneuil, a treatise on 
the artificial production of rubies. : 
—An “ Elementary Textbook of Agricultural Botany of 
the University Extension Series,” by M. C. Potter, Pro- 
fessor of Botany in the Durham College of Science, New- 
castle-upon-Tyne, has just been published by Methuen and 
Co., of London. The writer considers it the best botany 
extant for beginners. Scientific facts are presented in 
such a clear, forcible and interesting way that the rudi- 
ments of botany may be acquired by its use with little 
effort and without the aid of ateacher. It begins at once 
with the study of the cell instead of the seed, as is customary 
in such books. He treats of the seed under the fruit 
where it belongs and of which it is the essential part. The 
study of the microscopical parts of plants is too often 
neglected because of a lack of knowledge of the use of the 
microscope and technique, without which, however, it is 
superficial and disjointed. There is a chapter on plant 
food, another on reproduction, another on grasses, another 
on the bean family with its bacteroids and another very 
valuable chapter on the commonest plant diseases. It 
ends with a brief system of classification. The book is 
invaluable to young agriculturists, for whom it was especially 
intended. The writer has introduced it into his beginning 
classes and finds it excellent. 
—The Open Court Publishing Company have issued 
Professor Ribot’s work on ‘‘ The Diseases of Personality ”’ 
in their Religion of Science Library. By diseases of per- 
sonality M. Ribot means such nervous diseases as affect 
the mind, including not only the various forms of insanity 
SCIENCE. 
97 
but also the milder kinds of mental disorder, whether 
affecting the intellect or the emotions; but as the work 
before us was noticed in Science when it appeared in a 
bound volume some years ago, we need not dwell on the 
author’s views now. The books forming the Religion of 
Science Library, of which this is the fourth, are published 
in pamphlet form, with good clear type, at twenty-five 
cents a number, or $1.50 a year, and will include works 
both new and old on various subjects in science and 
philosophy. 
—The University Press at Cambridge has undertaken 
to publish a complete translation of the Pali Jataka or 
‘‘ Buddha Birth-stories,” which are supposed to be the 
oldest collection of folk-lore stories in existence. The 
first volume is now in the press, and has been prepared by 
Mr. R. Chalmers, late of Oriel College, Oxford, a former 
pupil of Prof. Rhys Davids. It will contain the forty 
stories given in Prof. Rhys Davids’s discontinued transla- 
tion, but will also give the remainder of the first volume 
of Prof. Fausbéll’s edition of the Palitext. The second 
volume is translated by Mr. W. H. D. Rouse, Fellow of 
Christ’s College, and the third by Mr. R. A. Neil, Fellow 
and assistant-tutor of Pembroke College, and Mr. H. T. 
Francis, under-librarian of the University Library at Cam- 
bridge and late Fellow of Gonville and Caius College. The 
whole translation will appear under the editorship of Prof. 
Cowell, of Cambridge. The work is expected to fill seven 
or eight volumes ; but at present only five volumes of the 
Pali text have appeard. Each volume of the text is to be 
represented by a volume of the translation. This Bud- 
dhist collection of stories will be of great interest and im- 
portance for students of folk-lore ; and it will also be of 
value as illustrating the manners and customs of ancient 
India. The stories are generally told ina simple popular 
style, with not infrequent touches of quaint humor and 
pathos ; and they give us a moving panorama of Hindu 
society in the immediate centuries before our era. 
BRAIN 
WORKERS. 
HORSFORD’S ACID PHOSPHATE 
is recommended by physicians of all 
schools, for restoring brain force or 
nervous energy, in all cases where 
the nervous system has been reduced 
below the normal standard by over- 
work, as found in lawyers, teachers, 
students and brain-workers generally. 
Descriptive pamphlet free on application to 
Rumford Chemical Works, 
Providence, R.I. 
Beware of Substitutes and Imitations, 
FOR SALE BY ALL DRUGGISTS. 
EXCHANGES. 
[Free of charge to all, if of satisfactory character. 
Address, N. D. C. Hodges, 874 Broadway, New York.] 
IVING near the famous ‘‘ Serpent Mound,’’ Adams 
County, Ohio, I have had opportunity to make a 
collection of pre-historic relics. Iwillsell same to any one 
interested in archeology. Writeme. Warren Cowen, 
Elmville, Highland County, Ohio. 
Pa EXCHANGE.—Herbarium specimens. Address, 
H. P. Chandler, Beaver Dam, Wisc. 
ARYOKINETIC FIGURES IN MAMMALIAN 
TISSUES.—Since the publication of my Prelim- 
inary Notice in Sczezce for Dec. 1, 1893, many parties 
have written me asking for permanent preparations show- 
ing mitosis. To these parties I have sent slides, and I 
now offer to all who desire them slides showing mitotic 
figures in nuclei of embryo kitten. A good immersion 
objective is necessary to make out the figures satis- 
factorily. Send 6ocentsin stamps. If the slide is not 
satisfactory, return it, and I will return the money. I do 
not care to exchange slides, Frank S. Aby, State Uni- 
versity, Iowa City, Iowa. 
OR SALE,.—A small collection of bird skins, con- 
sisting of 135 specimens of New England species, 
most of which are in good condition and all have full 
data. Nearly all were collected in the Connecticut valley 
in Massachusetts. Price, $10. Address, H. L. Clark, 
3922 Fifth Avenue, Pittsburgh, Penna. 
WANTS. 
Vea young man to canvass for advertise- 
ments for Sezezce. The usual commission of thirty 
per cent will be paid. Apply in person at Sczence Office, 
874 Broadway, New York. 
OUBLE honor graduate in Science and Philosophy 
desires any suitable work in science, of the nature 
of teaching preferred. Address, E. A. Beckett, Trinity 
College, Toronto, Ontario. 
\ YA SS SAD = Mi soay of the Earth, by Hutton. Pmnn- 
ciples of Geology, by Lyell. Manual of Geology, 
by Phillips. Lehrbuch der Geolgie und Petrefacenkunde, 
by Carl Vogt. Etudes sur le Métamorphisme, by Daubrée 
\ WAVE BD Seoncbinerne| books on osteology, em 
bryology, and comparative anatomy. Send list, 
stating condition and cash price. Can offer a few good 
sets of birds’ eggs if desired. R. C. McGregor, Palo 
Alto, California. 
V E are engaged in a study of the geographical distri- 
bution and osteology of our North American Box 
Tortoises or Terrvapene (Cistudo). Specimens from 
Georgia, Tennessee, Alabama and the Dakotas are es- 
pecially desired. Material from other localities would be 
welcomed. Would gladly pay expressage and return 
specimens if desirable. Specimens should be enclosed in 
a small box with but little paper (without alcohol) and ad- 
dressed, W. E. Taylor, Walker Museum, University of 
Chicago, Chicago, Ill. 
| eS SALE.—Price $150, cost originally between $300 
and $400, a microscope and following accessories : 
Acme (No. 2), stand and case lost, $75 ; Crouch, one-fifth 
collar adjustment and objective, $25; Tollcs, four-tenths 
ditto, $45 ; Tollcs amplifier, $12; Baush and Lamb, half 
solid eye piece, $8; Baush and Lamb, acromatic con- 
denser, $18; Hartnock Polarizer, $30; turn-table, $6; 
Hartnock, camera lucida, $20. D, T. Marshall, Metuchen, 
Wed 
O EXCHANGE.—Works on entomology, botany 
and palaeontology for works on Indians and ar- 
cheology. H. Justin Roddy, Millersville, Pa. 
Ss SALE.—A Zertmayer new model U. S. Army 
Hospital monocular stand, cost $110. H. C, Wells, 
151 Broadway, New York. 
V ANTED.—Addresses of persons interested in ar- 
chzology. Copies of the new archzologic journal in 
exchange for fists of collectors. A collection of 10,000 
valuable objects, the results of my nine years’ exploration 
in the Mississippi Valley, for sale. Price, $7,650. Warren 
K. Moorehead, Waterloo, Indiana. 
Gro. L. Enciisu & Co., of No. 64 East 12th Street, 
New York, announce that they have added to 
their stock of minerals, during the past six weeks, 
more choice specimens than during any similar period in 
their history. In order to make quick sales they have 
marked the prices very low, and as a further temptation 
to customers to forget the hard times, they have decided 
to allow a discount of ten per cent. on all minerals 
sold during the month of February. 
