Piltdown Man i r 
reasonable to suppose that Piltdown man dates back to the 
beginning of the Pleistocene period. 
Fig. 2.- — Bone Implement from Piltdown, made from the thigh-bone of an 
Elephant, and retaining part of the concave inner wall of the marrow 
cavity (A), the smooth hinder outer surface (B), and the outer edge (C) 
including the " third trochanter " ; nearly one-third nat. size. b. = acci- 
dentally broken hollow ; c. = natural break by pressure in the gravel ; 
p. = inner wall of perforation from which outer wall has been broken 
away; x. = beginning of another perforation. 
C 
