Parr V. Sucr. ii. § 1.) RECENT OR HUMAN PERIOD. 903 
were in use until quite recently. It is obvious also that, as there 
are still barbarous tribes unacquainted with the fabrication of metal, 
the Stone Age is not yet extinct in some parts of the world. In 
this instance we again see how geological periods run into each 
other. The nature or shape of the implement cannot therefore be 
always a very satisfactory proof of antiquity. We must judge of it 
‘by the circumstances under which it was found. From the fact that 
in north-western Europe the ruder kind of stone weapons occurs in 
what are certainly the older deposits, while others of more highly 
finished workmanship are found in later accumulations, the Stone 
Age has been subdivided into an early or Paleolithic and a later or 
Neolithic epoch. There can be no doubt, however, that the latter was 














Wh 
\ i A AY 
y } WS Ni ‘ul 
Uf 7s 
LLY im—s ity 
: Ly a 
/) AY ~ 
fp mi 
f li f i 
Fic. 427.—PaLmoLiruic FLINT IMPLEMENT. 
in great measure coeval with the age of bronze, and even to some 
extent of iron.! | 
The deposits which contain the history of the Human Period are 
cavern-loam, brick-earth, river-alluvia, lake-bottoms, peat-mosses, 
sand-dunes, loess, and other superficial accumulations. 
PaL#ouitHic.— Under this term are included those deposits which 
have yielded rudely-worked flints of human workmanship associated 
with the remains of mammalia, some of which are extinct, while 
others no longer live where their remains have been obtained. An 
association of the same mainmalian remains under similar conditions, 
but without traces of man, may be assigned to the same geologica! 
1 The student may profitably consult Dr. Arthur Mitchell's Past tr the Present, 
1880, for the warnings it contains as to the danger of deciding upon the antiquity of an 
implement merely from its rudeness. 
