220 
THE ANTIQUITY OF MAN 
preserved in the same stratum. At the horizon at which 
the human skeleton lay no animal remains have been 
found at Bolton and Laughlin's pit. In the glacial sands, 
however, bones of Pleistocene animals occur, and in 
ETFT rl^ND. 
LErT FOREARM. 
RIGHT HUMERUS. 
RIGHT FOREARM. 
LCFT FEMUR. 
PEBBLE 
Fig. 76. The parts of the Ipswich skeleton replaced in po.sition. 
many cases the condition of these bones is very similar 
in their state of preservation to the bones of the Ipswich 
skeleton. The substance of the bones is grey and chalky 
in appearance, crumbling to a white dry dust on pressure. 
The bones, when dissolved in hydrochloric acid, leave 
