NATURAL HISTORY OF AFRICA. 449 
one horn placed on the middle of the forehead. 
The oryx of Africa, having cloven hoofs, the hair 
placed reversely to that of other animals, # its height 
equal to that of the bull, t or even of the rhinoce- 
ros, X and said to resemble deer and goats in its 
form ; § the Indian ass, having solid hoofs ; and 
the monoceros, properly so called, whose feet are 
sometimes compared to those of the lion, II and 
sometimes to those of the elephant, and is there- 
fore considered as having divided feet. The horse 
unicorn P*. and the bull unicorn are doubtless both 
referable to the Indian ass, for even the latter is 
described as having solid hoofs, tt We may 
therefore be fully assured that these animals have 
never really existed, as no solitary horns have ever 
found their way into our collections, excepting 
those of the rhinoceros and narwal. 
" After careful consideration, it is impossible that 
we should give any credit to rude sketches made 
by savages upon rocks. Entirely ignorant of per- 
spective, and wishing to represent the outlines of a 
* Aristot. Anim. II. 1. and III. 2.— Plin. XI. 46. 
| Herodot. IV. 192. 
X Oppian, Cyneg. II. vers. 551. 
§ Plin. VIII. 53. 
]| Philostrog. III. ii. 
f Plin. VIII. 21. 
** Onesecrit. ap. Strab. lib. XV.— ^lian. Anim. XIII. 43. 
ff See Pliny and Solinus. 
VOL. IT. F f 
