GROUP OF CHACMAS. 
BABOONS, OR DOG-HEADED MONKEYS. 
A WELL-MARKED group of animals now comes before us, popularly known by the 
name of BaBoons. In more learned language they are entitled “Cynocéphali,” or Dog- 
headed animals, on account of the formation of the head and jaws, which much resemble 
those of the dog tribe. 
One distinguishing characteristic of these creatures is that the nostrils are situated at 
the extremity of the muzzle, instead of lying nearly flat upon its base, and just under 
