Page:Primitive Culture Vol 1.djvu/33

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or habits or beliefs being developed one out of another, for development in Culture is recognized by our most familiar knowledge. Mechanical invention supplies apt examples of the kind of development which affects civilization at large. In the history of fire-arms, the clumsy wheel-lock, in which a notched steel wheel revolved by means of a spring against a piece of pyrites till a spark caught the priming, led to the invention of the more serviceable flint-lock, of which a few still hang in the kitchens of our farm-houses for the boys to shoot small birds with at Christmas; the flint-lock in time passed by modification into the percussion-lock, which is just now changing its old-fashioned arrangement to be adapted from muzzle-loading to breech-loading. The mediæval astrolabe passed into the quadrant, now discarded in its turn by the seaman, who uses the more delicate sextant, and so it is through the history of one art and instrument after another. Such examples of progression are known to us as direct history, but so thoroughly is this notion of development at home in our minds, that by means of it we reconstruct lost history without scruple, trusting to general knowledge of the principles of human thought and action as a guide in putting the facts in their proper order. Whether chronicle speaks or is silent on the point, no one comparing a long-bow and a cross-bow would doubt that the cross-bow was a development arising from the simpler instrument. So among the fire-drills for igniting by friction, it seems clear on the face of the matter that the drill worked by a cord or bow is a later improvement on the clumsier primitive instrument twirled between the hands. That instructive class of specimens which antiquaries sometimes discover, bronze celts modelled on the heavy type of the stone hatchet, are scarcely explicable except as first steps in the transition from the Stone Age to the Bronze Age, to be followed soon by the next stage of progress, in which it is discovered that the new material is suited to a handier and less wasteful pattern. And thus, in the other branches of our history, there will come again