1026 MONOGRAPHS OF NORTH AMERICAN RODENTIA. 
1854.—Brown, G. T. The teeth of the ox as indicative of age: an explanation of the signs afforded 
by the incisor teeth during temporary and permanent dentition. 8°. 29 pp. London, Ham- 
ilton, 1854. 
Jager, G. von. Ueber die Identitiit des Europiiischen und Americanischen Bison. < Wiirttem- 
berg. Jahreshefte, x, 1854, pp. 203-209. ; 
Leidy, J. Description of a fossil apparently indicating an extinct species [Camelops kansanus ] 
of the camel tribe. < Proc. Acad. Nat. Sci. Phila. vii, 1854, pp. 172-173. ‘ 
Leidy, J. [Remarks on Bos americanus of Harlan, or Hailanus americanus of Owen, which he 
considered identical with Bison latifrohs.] < Proc. Acad. Nat. Sci. Phila. vii, 1854, pp. 89, 90. 
Leidy, J. [Remarks on the question of the identity of Bootherium cavifrons with Ovibos 
moschatus, or O. maximus.] < Proc. Acad. Nat. Sci. Phila. vii, 1854, pp. 209, 210. 
Peters, W. Ueber das Gehirn des Nilpferdes (Hippopotamus amphibius, Linn.). < Bericht 
Verh. K. Pr. Akad. Wiss. Berlin, 1854, pp. 367-371. 
1855.—Gray, J. E. Notice of the horns of an unrecorded species of the prong horn (Antilocapra), in 
the collection of the Derby Museum, | iverpool. < Proc. Zool. Soc. London, xxxii, 155, pp. 
9-11, with 2 figg. 
Lavocat, A. Nouvelle détermination d’une piéce métatarsienne représentant le pouce chez les 
ruminants. < Comp. Rend. Acad. Sci. Paris, xli, 1855, pp. 260,261; Institut, xxiii, no. 1129, 
1855, p. 286. 
Marsh, G.P. The camel. < Ninth Ann. Rep. Smith. Inst. 1855, pp. 98-122. 
Powell, J.B. [Communication on the habits of the moose, as observed in the State of Maine. ] 
< Proc. Acad. Nat. Sci. Phila. vii, 1855, pp. 342-344. 
1856.—Gaskoin, J.S. On some defects in the growth of the antlers, and some results of castration, 
in the Cervidw. < Proc. Zool. Soc. London, xxiv, 1856, pp. 151-159, with 7 cuts. 
Lichtenstein, K.M.H. Ueber einige nordamericanische Hirscharten [Cervus strongyloceros, 
C. alces, C. tarandus, C. virginianus, C. mexicanus, C. leucurus ete.]. < Abhandl. K, Akad. 
Wiss. Ber’in (Phys.), 1856, pp. 269-287. 
Morris, W.T. [Spike horn buck.] < Can. Journ. Ind. Sci. and Art, n. 8. i, 1856, p. 168. 
Poinsot, J. Sur un second conduit pancréatique chez le beuf. < Compt. Rend. Acad. Sci. 
Paris, xliii, 1856, pp. 585-587. 
Wyman, J. [On some fossil bones and teeth of Suidz, discovered by J. W. Foster in Iowa.] 
< Proc. Bost. Soc. Nat. Hist. vi, 1856, p. 8. 
1857.—[Billings, E.] Natural history of the moose deer (Alces americana). [anon.] < Can. Nat. and 
Geol. i, 1857, art. vii, pp. 60-70. 
[Billings, E.] The northern reindeer, or barren-ground caribou (Tarandus areticus). [anon.] 
< Can. Nat. and Geol. i, 1857, art. viii, pp. 71-76, with 2 fige. 
(Billings, B.] On the American buffalo (Bison americanus). [anon.]- < Can. Nat. and Geol. i, 
1857, art. xlviii, pp. 346-353. ; 
[Billings, E.] On the common deer (Cervus virginianus). [anon.] < Can. Nat. and Geol. i, 
1857, art. xi, pp. 87-92. . 
(Billings, B.] On the mule deer (Cervus macrotis). [anon.] < Can. Nat. and Geol. i, art. xii, 
1857, pp. 92, 93. 
[Billings, E.] On the musk ox (Ovibus moschatus). < Can. Nat. and Geol. i, 1857, art. xlix, pp. 
3538-357. 
(Billings, E.] On the wapiti, or Canadian stag (Elaphus canadensis). [anon.] < Can. Nat. and 
Geol. i, 1857, art. x, pp. 81-87, with fig. 
(Billings, E.] The Rocky Mountain sheep (Ovis montana). [anon.] < Can. Nat. and Geol. i, 
1857, art. 1, pp. 357-360. 
(Billings, B.] The woodland caribou (Tarandus hastalis). [enon.] < Can. Nat. and Geol. i, 
1857, art. ix, pp. 77-80. . 
Bray, E. de. Note sur le beuf mosqué [Bos moschatus] (Oomingmak des Esquimaux). ~ 
<_ Comp. Rend. Acad. Sci. Paris, xlv, 1857, pp. 173-175; Institut, xxv, 1857, no. 1232, p. 263. 
Gray, J.E. New general classification of the deer. < Can. Nat. and Geol. i, 1857, art. xii, pp. 
93-96. ’ 
