NATIVES OF BRITISH CENTRAL AFRICA 405 
heads, and perform some very passable clowning. The natives dwelling in the 
vicinities of lakes or rivers almost invariably swim from childhood. They can 
swim long distances without becoming unduly exhausted. When swimming at 
great speed they proceed hand over hand, otherwise they move their arms and 
legs simultaneously. 
Briefly, it must be said in regard to exercises of the body there is almost 
nothing that the Central African negro will not rapidly learn. In no exercise of 
skill or speed that we have yet tried (whether it be native or foreign) is the 
SKETCH OF MUSCULAR DEVELOPMENT IN A YAO 
