38 THE AMERICAN MONTHLY. [February. 



he has considerable time for his subject, and sufficient training therein himself to ven- 

 ture out where his feet are not constantly in easy reach of the bottom. Of the value of 

 a course such as is outlined by Prof. Burgess there can be no doubt it would have an 

 educational value not in the least inferior to mathematics or the languages, and far more 

 useful, because it would give the young people something in nature to think about, and 

 watch — a gift worth the taking of anyone. It might at first be thought that so full a 

 course in High-School work would cease to interest the young students, but, if con- 

 ducted with ability, it would not do so, but have a growing interest. On the other hand 

 it would be a dangerous experiment for the teacher with a mere superficial knowledge 

 of botany to attempt. We should like to see the syllabus extended into a somewhat 

 more complete guide, and especially commend the very considerable attention which 

 the physiological side of elementary botanical study has engaged in it. 



The Tongue and Gtistatory organs of Mephitis Mephitica. By Fred'k Tuckermann. 

 London. Allard & Son. 1887. pp. 21. i pi. 

 After the customary historical summary the writer gives first an account of the gen- 

 eral anatomy of the tongue, followed by a particular description of the histological 

 structure of the circumvallate papillse ; (2) the fungiform papillae with figures. There 

 is an enumeration of the bibliography of the subject, 58 works being cited, but no gen- 

 eral discussion of the subject. 



We desire to acknowledge, with thanks, the following, viz : — 



I. The Genn Bands of L.VMBK^C\J^. By E. B. Wilson. Boston. Ginn&Co. pp.12. 

 I pi. 2. Hydrachnides des eau donees des Acores. By Dr. Th. Barrois. Lille, France. 

 1887. pp. 16. 3. Catalogue des Hydrachnides recueilles dans le nord de la Fratice, 

 avec des notes critiques et la description d'especes Nouvelle. Par Th. Barrois et R. 

 Moniez. Lille, France. 1887. pp. 36. 4. From American Naturalist, Department 

 Microscopy: — i. Albuminized Felt Tablets for iMountiftg Anatomical Preparatioiis. 

 By H. Dewitz. 2. The Akipels Water Bath. By Mayor, Giesbrecht & Vosmaer. 5. 

 The Indebtedness of Photography to Microscopy. By A. Clifford Mercer, M. D. New 

 York. 1887. 6. Scientific Fact and Scientific Biference. By H. W. Conn, American 

 Naturalist. Sept., '87. 7. Limits of Organic Evolution. By H. W. Conn, American 

 Naturalist. May, 1886. 



Exchanges. 



[E.xchanges are inserted in this column without charge. They will be strictly limited to mounted objects, and 

 material for mounting.] 



Wanted, Diatomaceous earth from Megillanes, Bolivia, South America. Can give in exchange either Dia- 

 tomaceous earth from New Zealand or cash. E. MICHALEK, 



I. Fleischemarkt, No. i, Vienna, Austria. 

 Mounted sections of Foetal Lung (5 months), sections across entire lobe, ^,^5 >"• thick, beautifully stained, in 

 exchange for first-class pathological slides. W. C. BORDEN, M. D., U. S. A., 



Fort Douglas, Utah. 

 Correspondence relative to exchange in microscopical material or prepared mounts. 



HENRY L. OSBORN, Hamline, Minn. 

 Wanted, earths, recent diatoms, and miscellaneous objects for mounting. Only first-class material offered or 

 desired. MARY A. BOOTH, Longmeadow, Mass. 



Fossil Diatomaceous deposits (marine) wanted from Bermuda, Virginia, Maryland, California, etc. 



I. ELLIOTT, Ardwyn Villa, Aberystwith, Wales, England. 

 Labels for slides. EUGENE PINCKNEY, Dixon, 111. 



Notices. — All communications for publication should be addressed to Henry Leslie Osborn, Hamline 

 University, Hamline, Minn. 



Subscriptions, and all matters of business, should be addressed to the Manager, Chas. W. Smiley, P. O. 

 Bo.x 630, Washington, D. C. 



Subscription price $1.00 PER YEAR strictly in advance. All subscriptions should end with the De- 

 cember number. A pink wrapper indicates that the subscription has expired. A date on the wrapper in- 

 dicates the month to which payment has been made. 



Orders for slides advertised by A. J. Doherty in the Journals from January to April, 1887, may be sent 

 through the Business Manager, P. O. Box 630, Washington, D. C. 



A few copies of Leidy's Fresh-Water Rhizopods, of North America, can still be had at $5 00 per copy. — P. 

 O. Box 630, Washington, D. C. 



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 Manager. 



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. Ill (1882), out of print ; Vol. IV 

 (1883) complete, ^1.50; Vol. V (18S4) complete, $1.50 ; Vol. V (1884), Nos. 2-12, ^i. 00 ; Vol. VI (1885), ^1.50; 

 Vol. VII (i8S5), fi.oo; Vol. VIII (1887), $1.00. As calls for Volume I sometimes occur, those persons having 

 copies to dispose of would do well to inform us, and to state their prices. 



