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IMPLEMENTS OF THE PALÆOLITHIC PEEIOD.
CHAPTER XXII.
CAVE IMPLEMENTS.
In this second division of my subject, I must pass in review a class of implements of stone, which, though belonging to an earlier period than those already described, it appeared to me to be better to take second rather than first in order. My reasons for thus reversing what might seem to be the natural arrangement of my subject, and ascending instead of descending the stream of time, I have already to some extent assigned. I need only now repeat that our sole chronology for measuring the antiquity of such objects is by a retrogressive scale from the present time, and not by a progression of years from any remote given epoch; and that though we have evidence of the vast antiquity of the class of implements which I am about to describe, and may at the present moment regard them as the earliest known works of man, yet we should gravely err, were we for a moment to presume on the impossibility of still earlier relics being discovered. Had they been taken first in order, it might have been thought that some countenance was given to a belief that we had in these implements the first efforts of human skill, and were able to trace the progressive development of the industrial arts from the very cradle of our race. Such is by no means the case. The investigators into the early history of mankind are like explorers in search of the source of one of those mighty rivers which traverse whole continents: we have departed from the homes of modern civilization in ascending the stream, and arrived at a spot where traces of human existence are but few, and animal life has assumed strange and unknown forms; but further progress is for the moment denied, and though we may plainly perceive that we are nearer the source
