The co-evolution of social behavior and cranial morphology in sheep and goats (Bovidae, caprini) [by] William M. Schaffer and Charles A. Reed.

v.61(1971)

Ticks (Ixodoidea) from wild sheep and goats in Iran and medical and veterinary implications / Harry Hoogstraal, Raul Valdez.

n.s. no.6(1980)

Crocodile hunting in Central America / by Karl P. Schmidt, Chief Curator, Dept. of Zoology.

no.15(1952)

The man-eating lions of Tsavo / by Lieut.-Col. J.H. Patterson, D. S. O.

no.7(1925)