KECENT LITERATURE 
45 
Goldthwaite, G. Tarleton. a moose hunt in Nova Scotia. Forest and Stream, 
vol, 90, pp. 638, 657-659. December, 1920. 
Grayson, Andrew J. Game in the San Joaquin Valley in 1853. Callifornia 
Fish and Ganie, vol. 6, no. 3, pp. 104-107. July, 1920. 
Haagner, a. K. National Zoological Gardens of South Africa, Pretoria, Trans- 
vaal. Keport for the year 1918. Pp. 1-15. 1920. (On December 31, 1918, 
the Pretoria gardens collection contained 492 mammals of 164 species.) 
Hartman, Carl G. Studies in the development of the opossum Didelphys 
virginiana L. V. The phenomena of parturition. Anatomical Record, vol. 
19, no. 5, pp. 1-11 (of separate), October (September 13), 1920. (This impor- 
tant contribution seems to settle all controversy as to how the newly-born 
marsupial reaches the pouch. Ten-day old opossum embryos, after release 
by the mother from the liquid medium of ‘‘birth,’’ immediately crawl the 
full three inches to the pouch, without aid, and attach themselves to nipples.) 
The free-martin and its reciprocal: opossum, man, dog. Science, n. s., 
vol. 52, pp. 469-471. November 12, 1920. 
Hausman, Leon Augustus. Mammal fur under the microscope. Nat. Hist., 
vol. 20, pp. 434-444, 9 figs. September-October, 1920. (A study of the 
structures and identification characteristics of hairs of mammals. Zoologi- 
cal and industrial importance of methods of determining hairs.) 
Hinton, Martin A. C. Note on the duikers hitherto referred to Cephalophus 
maxwelli. Ann. and Mag. Nat. Hist., ser. 9, vol. 6, pp. 529-533. December, 
1920. 
Hogg, John Edwin. Boar hunting on Santa Cruz. Outers’ Recreation, vol. 63, 
pp. 194-196, 238-240. September, 1920. (These pigs are said to be descended 
from stock placed on the island in 1582. Other mammals mentioned.) 
Holland, R. P. How much does a wild deer weigh? Outers’ Recreation, vol. 
62, p. 340, May, 1920. (White-tailed deer killed near Trout Creek, Michi- 
gan, weighed 354 pounds, dressed.) 
The spread of the coyote. Outers’ Recreation, vol. 62, p. 453, June, 
1920. (Report of a coyote, suspected to be an escaped animal, shot near 
Ithaca, New York.) 
Wolf, fox, or dog? Outers’ Recreation, vol. 63, p. 99. August, 1920. 
(Account of an animal of doubtful relationships, possibly a hybrid, taken at 
Rosedale, Winchester County, New York.) 
Elk swim the Columbia. Outers’ Recreation, vol. 63, p. 421. Decem- 
ber, 1920. 
Hollister, N. Popular guide to the National Zoological Park. Published by 
the Smithsonian Institution, pp. 1-60, pis. 1-46. Price, 35 cents. October, 
1920. 
Report on the National Zoological Park. Report of Smithsonian Inst., 
Appendix 4, pp. 75-89. December, 1920. (On June 30, 1920, the collection 
of animals in the National Zoological Park at Washington included 496 
mammals of 166 species.) 
Hopkins, L. S. The hoary bat in Ohio. Ohio Journ. Science, vol. 20, no. 2, 
pp. 35-37. December, 1919. (Account of a specimen taken at Kent, Ohio, 
August 12, 1919.) 
