120 THE AMERICAN MONTHLY. [June. 
But even if the work should fail to do whatis really, practically, almost impossible, 
viz., teaching what one could learn by imitation very rapidly, still the work is a 
valuable and convenient one for the general worker for the numbers of formule it con- 
tains for making and using cement stains, preservatives, cells, etc. We regret that the 
formule are all given in the ancient system of weights and measures. For purposes 
of dilution, etc., the metric system is far more convenient. Thus, I gramme of 
chromic acid and gg c.c. of water give us a 1% solution of chromic acid and the 
same for osmic acid. We, however, are willing to concede much to habit in this mat- 
ter, but we do not see how, by the non-decimal systems, these various percentage 
solutions can be easily made up. Since the work is not complete, we may hope that 
future volumes will take up other processes, for instance, tensing and cell isolation, 
injecting, etc., and the study of fresh tissues. We note the omission of some favorite 
fluids, thus, acetic acid, corrosive sublimate (except in the modified Goadby’s fluid) 
But we remember that the work is ‘elementary,’ and that the writer is writing not for 
the purpose of teaching a beginner all things of the art, but how to mountaslide. We 
can safely recommend the book as one as well calculated to do this as any work we 
know of. ' 
Proceedings of the American Society of Microscopists. (pp. 243). Buffalo. 1886. 
The proceedings of the 9th annual meeting of this excellent society were received 
some weeks ago, and form an interesting and valuable volume. It contains papers 
by Burrill on Bacteria and Disease, Smith on Life History of Diatomacew, Weber and 
Taylor on Butter and its Adulterations, and a great variety of others of less general 
interest. The volume evidences good work done on the part of the society, and the 
good list of names of members shows that the society flourishes. We trust the meet- 
_ing of the coming summer may be even more interesting than ever, and it gives every 
promise of being so. 
We desire to acknowledge, with thanks, the receipt of the following :— 
1. Eyes of Mollusks and Arthropods. By Wm. Patten. (Abstract from American 
laturalist). 2. Ryders Automatic Microtome. Am. Naturalist. 1887. 3. More 
about the Sea-Horse. By Samuel Lockwood. 4. Raising Diatoms in the Laboratory. 
By Samuel Lockwood. 5. Captain Glazier and his Lake. By A. D. Harrower. Ivison 
Blakeman & Company. 1887. 6. On Bacteria in Ice, with special Reference to the Ice 
Supply of New York City. By T. M. Prudden. 1887. 7. On the Action of certain 
Salts upon the Arteries. By F.S. Lee. Baltimore, Md. 1887. 8. The Couchologist’s 
Exchange, Vol. I, Nos. 6 and 7. By W. D. Averell. Philadelphia, Penn. 1886-7. 
g. Innervation of the Heart of the Shder- Terrapin. 10. The Action of certain Drugs 
and Potsons on the Heart of a Fish. 1. The Causation of the Heart-Beat. By T. 
Wesley Mills. Montreal. 1887. 
Exchanges. 
[Exchanges are inserted in this column without charge. They will be strictly limited to mounted objects, and 
material for mounting. | ; 
Diatoms Synedra superba in situ upon alga (Ceramium rubrum) in exchange for good mounted slides in 
animal histology. HENRY L. OSBORN, Lafayette, Ind. 
Wanted, earths, recent diatoms, and miscellaneous objects for mounting. Only first-class material offered or 
desired. M. A. BOOTH, Longmeadow, Mass. 
Wanted, exchange of slides, and correspondence on unusual urinary products. 
J. M. ADAMS, Watertown, N.Y. 
Ten selections of cleaned Marine Gulf Diatoms, and 1oo lbs. Gulf Marine Diatom Muds. Correspondence 
invited from any one. K. M. CUNNINGHAM, 
Land Office M. & O. R.R. Co., Mobile, Ala. 
Pathological and Histological Slides (very fine) in exchange for other good slides. 
F. M. HOYT, 160 Washington Park, Brooklyn, N. Y. 
Correspondence with animal histologists with regard to exchanges solicited. 
HENRY L. OSBORN, Lafayette, Ind. 
Publisher’s Notices.—All communications, exchanges, etc., should be addressed to Henry Leslie 
Osborn, Lafayette, Indiana, Purdue University. 
Subscriptions, and all matters of business, should be addressed to the Business Manager, P. O. Box 
630, Washington, D. C. The address of Mr, R. Hitchcock is Osaka, Japan. 
Subscription price $1.00 PER YEAR strictly in advance. All subscriptions begin with the January 
number. A pink wrapper indicates that the subscription has expired. 
Remittances should be made by postal notes, money orders, or by money sent in registered letters. Drafts 
should be made payable in Washington, New York, Boston, or Philadelphia, to the order of the Business 
Manager. The regular receipt of the JouRNAL, which is issued on the 15th of each month, will be an acknowl- 
edgment of payment. % 
The first volume, 1880, is entirely out of print. The succeeding volumes will be sent by the publisher for 
the following prices which are net :—Vol. II (1881) complete, $1.50; Vol. III (1882), out of print; Vol. IV 
(ees) complete, fi1.50; Vol. V (1884) complete, $1.50; Vol. V (1884), Nos. 2-12, $1.00; Vol. VI (1885), $1.505 
Vol. VII (1886), $1.00. 
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