28 A. Morlot on Archeology. 
most difficult discovery, and must at all events have been pres 4 
ceded by a knowledge of the use of fire, as derived from the 
effects of lightning or from voleanic action. 
The stone-age was therefore probably preceded by a period, — 
perhaps of some length, during which man was unacquainted — 
with the art of producing fire. This, according to Mr, Flourens, 
indicates that the cradle of mankind was situated in a warm cli- 
mate.* 
The art of producing fire has been perhaps the greatest achieve- 
ment of human intelligence. The use of fire lies at the root 
essential, 
In Europe the stone-age came to an end by the introduction of 
bronze. This metal is an alloy of about nine parts of copper and 
h 
called this second great phase in the development of European 
civilization the bronze-age 
e bronze articles of this period, with a few trifling excep- 
tions, have not been produced by hammering, but have been reg- 
arly cast, often with a considerable degree of skill. Even the 
sword-blades were cast, and the hammer (of stone) was only used 
s: Del vi 
struction of his teeth, his stomach, and his intestines, is primitively frugivorous, like 
the monkey. But the frugivorous diet is the most unfavor. because i i 
‘owers perpetually to abide in those countries which produce frui 
consequently in warm climates. But, when once the art of cooking was in 
and appli to FP RMR. ERIS ea a ae eS 
man } si. 
a two diets; the first is primitive, natural 
ous, the second is artificial, being due en- 
and ivorous.” 
ronze is still used for casting bells, cannon, and certain portions of machinery. 
ou mmon which is a compound of copper and 
