96 POPULAR OFFICIAL GUIDE. 
HIPPOPOTAMUS. 
The Indian One-Horned Rhinoceros is the largest of all liv- 
ing rhinoceroses. A full-grown male is about 5 feet, 6 inches 
in shoulder height, and 10 feet 6 inches long from end of 
nose to root of tail. The length of the horn is not great, 
rarely exceeding 12 inches. The skin is very thick, and lies 
upon the animal in great rigid slabs which are divided by 
articulating areas of thinner skin. 
The ‘‘White’’ or Square Mouthed Rhinoceros.—At this 
moment (June 1, 1911), an expedition is now in the Lado 
District, on the left bank of the upper Nile, in quest of two 
of these rare and almost extinct animals for the Zoological 
Park. Ifthe venture is successful, those most rare specimens 
should arrive at the Park about September, 1911. 
The Hippopotamus, (Hippopotamus amphibius), is more 
frequently seen in captivity than any of the large rhinoce- 
roses, or the African elephant. In the lakes and large rivers 
of central East Africa it still exists in fair numbers, and 
still is killed for ‘‘sport.’’ 
Strange as it may seem, this very inert and usually leth- 
argic monster can, under what it deems just provocation, 
become very angry, and even dangerous. Four years ago, 
in one of the rivers of Uganda, a hippopotamus not only 
overturned a boat, but killed one of its native occupants by 
biting him. 
The Hippopotamus breeds readily in captivity, even under 
poor conditions, and the supply for the zoological gardens 
