42 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 6l 



only female, number 164590, found without a calf was a quite young 

 individual in which the milk molars were only partially worn. She had 

 apparently not yet reached the breeding age. The next oldest speci- 

 men, number 164587, in which the fourth milk molars were still in use, 

 was accompanied by a large calf. This specimen had doubtless very 

 recently become sexually mature. An old adult female, number 164592, 

 which showed considerable wear on her last molars, was accompanied 

 by a large calf which appeared to be somewhat less than three years 

 old. Upon dissection this female was found to contain a large fcetus 

 with fully formed hoofs, to which she would have soon given birth. 

 The fcetus, which had a length of 3^2 feet, was so far advanced that 

 we were able to skin the specimen in the regular way and preserve 

 both the skin and skeleton in a dried state. It is evident that at least in 

 this female no great time would elapse between the weening of one 

 calf and the birth of another. The two other specimens of mature 

 females shot were accompanied by large calves. Seven females 

 shot by Major Powell-Cotton, add further evidence of the rapid 

 breeding of the Lado rhinoceroses. Four of these females were 

 accompanied by calves and one of the others contained a large fcetus. 

 Two of these parents were still quite immature, not having yet shed 

 any of their milk molars. There is no definite breeding season, the 

 young being produced at any time of year. The calves collected were 

 of divers ages, and the condition of foetal specimens showed similarly 

 wide variation in ages. 



HABITS, AND SHOOTING OF LADO SPECIMENS. 



No mere technical description of the specimens of white rhinoce- 

 roses secured by Colonel Roosevelt in the Lado Enclave, would be 

 complete without the graphic account of their habits and the shooting 

 of them, from his " African Game Trails." 



" The morning after making camp we started on a rhinoceros hunt. 

 At this time in this neighborhood the rhinoceros seemed to spend the 

 heat of the day in sleep, and to feed in the morning and evening, and 

 perhaps throughout the night ; and to drink in the evening and morn- 

 ing, usually at some bay or inlet of the river. In the morning they 

 walked away from the water for an hour or two, until they came to a 

 place which suited them for the day's sleep. Unlike the ordinary 

 rhinoceros, the square-mouthed rhinoceros feeds exclusively on grass. 

 Its dung is very different; we only occasionally saw it deposited in 

 heaps, according to the custom of its more common cousin. The big, 

 sluggish beast seems fond of nosing the ant-hills of red earth, both 



