HAWN—TRIAS OF KANSAS. 171 
these iy, reponse’ fires and heated ashes underlying bones 
could be partially burned, is self-evident. But the Indians, 
like many Ptoe primitive nations, are also in the habit of pre- 
paring sometimes their food, especially their meat, in holes 
dug in the ground and filled up with alternate layers of heat- 
ed stones, meat and embers. Such underground kitchen work 
would, of course, exert a still more powerful and speedy effect 
in partially burning underlying bones, and would account, at 
presence might al o be accounted for by the Indian custom 
of covering the nel end of their tents with stones, to keep 
them closer to the ground. In a deserted Indian camp these 
stones will, for a long time afterwards, indicate the places 
where their lodges were fixed. 
That in P course of centuries, after the spot was left un- 
vial grcund could have accumulated over it to 
the te depth of ety or nine feet, burying both the mastodon 
h its p tiall burne d bones _ om traces of the Indians, 
a 
"hacen of intelligent apes. 
e same am 
a other % evidence 
) he found 
