162 
longer time. The gravel beds of Amiens and Abbeville 
appear to furnish evidence of higher antiquity for the flint 
implements found there, for they lie at the bottom of the 
deposit, twenty feet or more in depth." The evidence of 
the contemporaneousness of man with some of the extinct 
mammalia, is strikingly confirmed by the researches of 
M. Lartet, who has found on various parts of their skeletons 
in the drift, marks of wounds inflicted by flint weapons. 
Not only do these wounds correspond with the traces which 
experiment on recent bones shows that flint implements 
would leave, but even with the marks which such flint 
implements as accompany the mammalian bones would pro- 
duce. And M. Lartet finds that the edges of metallic imple- 
ments would not produce such incisions.* The argument 
may be carried yet further. In Suffolk, the teeth of a 
Macacus have been found along with those of the extinct 
elephant and rhinoceros. The Ifacactis might have been 
brought over as &pet; but the others must have come hither 
while Britain was still joined to the Continent. The same 
gigantic animals have been found in Sicily and in Malta, 
whose distance from the Mainland of Africa is such that but 
for this evidence, the idea of their former union would have 
been thought an extravagance. Geological phenomena, 
referred to by the President of the Geological Society, in his 
anniversary address of the present year, make it probable 
that the separation of England from the Continent did not 
take place till after the deposit of the rolled diluvial pebbles, 
from among which the hatchets of Abbeville and Amiens 
have been obtained. In contemplating such stupendous 
changes on the earth's surface as these facts imply, and 
* See the Duke of Argyll's Address to the Eoyal Society of Edinburgh. 
His Grace accedes to the conclusion " That the discoveries in the Valley of 
the Somme furnish important collateral evidence of the necessity of assuming 
for the development of our race, a number of years far exceeding what the 
common chronology allows." 
