992 MONOGRAPHS OF NORTH AMERICAN RODENTIA. 
1856.—Burmeister, H. Erliiuternngen zur Pauna Brasiliens, enthaltend Abbildungen und ansfiihr- 
liche Beschreibungen neuer oder ungentigend bekannter Thierarten von Dr. Herm. Burmeister. 
lvol. Folio. Berlin, 1856. 3 
Jones, J. Investigations, chemical and physiological, relative to certain American vertebrata. 
Philadelphia, 1856, 4°. xi, 133 pp. = Smiths. Cont. to Knowledge, viii, art. 5. 
Leidy, J. Description of some remains of extinct mammalia, < Journ. Acad. Nat. Sci. Phila. 
(2d ser.), ii, 1856, art. xiv, pp. 166-171, pll. 15-17. 
Leidy, J. Notices of extinct vertebrata, discovered by F. V. Hayden, during the expedition to 
the Sioux country, under the command of Lieut. G K. Warren. < Proc. Acad. Nat. Sci. Phila. 
viii, 1856, pp. 311, 312. 
Leidy, J. Notices of remains of extinct mammalia, discovered by I’. V. Hayden, in Nebraska 
Territory. < Proc. Acad. Nat. Sci. Phila. viii, 1856, py. 88-90. : 
Leidy, J. Notices of remains of extinct vertebrated animals, discovered by Prof. E. Emmons. 
< Proc. Acad. Nat. Sci. Phila. viii, 1856, pp. 255, 256. 
(Orycterocetus cornutidens, n, sp., described p. 255.] 
Leidy, J. Notices of remains of extinct vertebrated animals of New Jersey, collected by Prof. 
Cook, of the State geological survey, under the direction of Dr. W. Kitchell. < Proc. Acad. 
Nat. Sci. Puila. viii, 1856, pp. 220, 221. 
[Macrophoca atlantica, n. sp., described p. 229.) 
Leidy, J. Notices of several genera of extinct mammalia, previously less perfectly character- 
ized. < Proc. Acad. Nat. Sci. Phila. viii, 1856, pp. 77, 91, 92. 
Leidy, J. Notices of some remains of extinct mammalia, recently discovered by Dr. F. VY. Hay- 
den in the Bad Lands of Nebraska. < Proc. Acad. Nat. Sci. Phila. viii, 1856, p. 59. 
Pucheran, J. Essai de détermination du caractére faunique de Europe et du nord de ]’Asie. 
< Institut, xxiv, 1856, pp. 282, 283. 
Sclater, P.L. List of mammals and birds collected by Mr. Bridges in the vicinity of the town 
of David in the province of Chiriqui in the state of Panama. < Proc. Zool. Soc. London, xxiv, 
1856, pp. 158-143. 
1857.—Baird, S. F. Catalogue of North American mammals, chiefly in the Museum of the Smithsonian 
Institution. 4°. 21 pp. Washington, Smithsonian Institution, July, 1857. 
Baird, S. F. Reports of explorations and surveys to ascertain the most practicable and econom- 
ical route for a railroad from the Mississippi River to the Pacific Ocean. Made under the 
direction of the Secretary of War in 1853-56, according to acts of Congress of March 3, 1853, 
May 31, 1854, and August 5, 1854. Vol. viii. 4°. pp. i-xlvii, 1-757, pll.i-lx. Washington, Bev- 
erly Tucker, printer, 1857. 
[he contents of this volame (which is ‘‘ Part i" of a“ General report on the zoology of the several Pacific 
Railroad routes"’) consist entirely of ‘“‘ Mammals, by Spencer F. Baird”. It is a work otherwise known as 
‘‘Mammals of North America”, the text having been reissued, in 1859, with the plates, and with the plates of 
the other volumes of Pacific Railroad reports, and others. 
It is a systematic account of the mammals (exclusive of Cetacea, Chiroptera, Sirenia, acd Pinnipedia) of 
North America, about 220 in number, and is by far the most importaut and most authoritative tieatise which 
has ever appeared upon the subject.] 
[Billings, E.] Gleanings in the natural history of the Hudson’s Bay Territories, by the arctic 
voyagers. [anon.] < Can. Nat. and Geol. ii, 1857, art. xxi, pp. 170-185, 185, 186, 186-188, 172- 
178. 
Blasius, J.H. Naturgeschichte der Siiugethiere Deutschlands und der angrenzenden Liinder 
von Mitteleuropa. .... 8°. vi (including 2 titles), 549 pp., 290 figg. in text. Braun- 
schweig, Druck und Verlag von Friedrich Vieweg und Sohn, 1857. Also entitled: Fauna der 
Wirbelthiere Deutschlands und der angrenzenden Liinder yon Mitteleuropa. .... LErster 
Band, Siiugethiere, mit zahlreichen Abbildungen im Texte. 
Kemp, A. F. Notes on the Bermudas and their natural history, with special reference to their 
marine alge. < Can. Nat. and Geol. ii, 1857, art. xix, pp. 145-156. 
Kennicott, R. The quadrupeds of Illinois injurious and beneficial to the farmer. < Rep. of 
the Commissioner of Patents for the Year 1856, Agriculture, 1857, pp. 52-110, pll. v-xiv. 
Le Conte, J. L. Descriptions of several new mamimais from Western Africa. < Proc. Acad. 
Nat. Sci. Phila. ix, 1857, pp. 10-11. 
