D6 NEW, YORK .ZOOLOGICALSOCIERY: 
his odd charge across the Atlantic in midwinter, and landing it 
in perfect health. There is good reason to expect that this pair of 
rhinoceroses will eventually breed here. 
During the summer of 1906, our female rhinoceros developed 
a swelling in the muscle of its left lower jaw, which eventually 
became so obstinate and troublesome that a severe operation 
was necessary to open the affected part quite to the bottom. The 
operation was entirely successful, and did not in any way affect 
the health of the animal. In January, 1907, the drainage opening 
closed naturally, and the whole affected part is now healed. 
A fine young male hippopotamus, now three years old, was pur- 
chased of the Park Department of the Borough of Manhattan, 
and safely installed temporarily in the Antelope House, wherein 
a pool had been provided to meet just such a contingency. This 
very desirable specimen is the gift of Mr. Samuel Thorne, and its 
arrival is most opportune. With the addition of a pair of young 
East African elephants, which will be delivered during the coming 
spring, the collection of animals for the Elephant House will be 
quite assured. 
The flock of five white mountain goats, procured in British 
Columbia, in October, 1905, remains intact, and in perfect health. 
All of these animals are growing about as rapidly and satisfac- 
torily as wild animals of the same age, and unless the low altitude, 
and the dense, salty air of New York eventually causes a prema- 
ture physical breakdown, they soon will be sufficiently mature to 
breed. The buffalo herd, the European bison, the ell herd and all 
the Asiatic and tropical deer are, without exception, in fine condi- 
tion. The Asiatic deer are breeding so rapidly as to cause some 
embarrassment, for it is difficult to sell the increase as rapidly as it 
is produced. The following is a list of the most important births 
in the Mammal Department during the year: 
MAMMALS BORN IN 1900. 
t Grizzly bear, 2 AiseDeets 
1 Syrian Bear. 2 Sika Dees: 
3 Buffalo. 5 Red Deer: 
1 Grant’s Zebra. 2 Fallow Deer. 
t Angora Goat. 4 Mule Deer. 
2 Spanish Ibex. 2 Barasinga Deer. 
3 Elk. 1 Malay Sambar Deer. 
1 Altai Wapiti. t Indian Sambar Deer. 
T Pidis Weer 5 Eskimo Dogs. 
40 Specimens. 
