RECENT LITERATURE 
151 
While it seems probable that the factors enumerated had much to do with the 
final disappearance of the Siberian mammoth it must be remembered that this 
-disappearance was only one phase of the general elimination of proboscidians that 
took place during the Pleistocene. At about the beginning of this epoch these 
mammals probably occupied essentially the whole of the continental area of both 
hemispheres. At its close they had disappeared in America and had become 
restricted in the Old World to the regions now inhabitated by the Indian and 
African elephants. Throughout the world the group was dying from old age as 
so many groups of vertebrates had died before. At such a time conditions might 
undoubtedly prove fatal which would cause no injury to a younger more vigorous 
«tock. 
—G, S. Miller. 
Anderson, Rudolph Martin. Field study of life-histories of Canadian mam- 
mals. Canadian Field-Nat., vol. 33, November, 1919, pp. 86-90. January 3, 
1920. (A plea for systematic studies of habits of the mammals of Canada.) 
Anthony, H. E. Mammals collected in eastern Cuba in 1917. With descriptions 
of two new species. Bull. Amer. Mus. Nat. Hist., vol. 41, pp. 625-645, plates 
35-37. December 30, 1919. (New: Nesophontes longirostris and Natalus 
primus, both described from remains found in a cave nearDaiquira, and sup- 
posed to be extinct.) 
Bannon, Arthur H. A spring bear hunt in Cassiar. Forest and Stream, vol. 
89, pp. 151-155; 184^186. April, 1919. (Account of bear hunting on the 
lower Stikine and the Clearwater in May and June, 1918.) 
Barber, W. E. Interesting facts concerning the beaver. Wisconsin Conserva- 
tionist, vol. 1, no. 4, pp. 2, 3. September, 1919. (Notes on habits, and men- 
tion of a beaver house in Bayfield County, Wisconsin, 16 feet high and 40 feet 
broad at base.) 
Bowles, J. Hooper. The California gray squirrel an enemy to the Douglas fir. 
Amer. Forestry, vol. 26, p. 26. January, 1920. 
Boyle, Una. River otter plays on moonlight nights. California Fish and 
Game, vol. 5, no. 2, p. 98, April, 1919. (Observations at Lake Leonard, Men- 
docino County, California.) 
Brimley, C. S. Our rats, mice and shrews. Journ. of Elisha Mitchell Scient. 
Soc., pp. 55-60. October, 1919. (Popular descriptive account of the species 
occurring in North Carolina.) 
Brooks, Charles E. P. The correlation of the Quaternary deposits of the 
British Isles with those of the continent of Europe. Ann. Rep. Smithsonian 
Inst., 1917, pp. 277-375. 1919. (Numerous records of fossil mammals.) 
Buxton, Cara. The ‘‘gadett” or brain-eater. Journ. East Africa and Uganda 
Nat. Hist. Soc., no. 15, p. 498. November, 1919. (Note on the killing of 
sheep for the brain alone by the spotted hyena; the bodies of the destroyed 
sheep remain untouched.) 
Cheesman, R. E. See Wroughton, R. C., and R. E. Cheesman. 
Crewe-Read, R. O. Ant-bear. Journ. East Africa and Uganda Nat. Hist. Soc., 
no. 14, pp. 421-422, 1 plate. July, 1919. (Specimen captured near Naivasha 
Station, British East Africa.) 
