We must now endeavor to learn the origin of bronze. The impulsive energies of this newer race found vent not only in conquest over the neighboring tribes, but it is extremely probable that they are the ones who first compelled nature to yield up her metallic stores to be of service to man. If the knowledge of fire was the starting point of human advancement, surely the knowledge of metals, their useful properties, and how to extract them from their ores, may lay claim to being the starting point of our present enlightenment. We have but to glance around us to see how many of our daily comforts are dependent on the use of metals. Should we, by any mischance, become deprived of the use of iron, or of the useful alloys, bronze and brass, our civilization would be in great danger of reverting to Savagism. Man, destitute of metals, can do but little to improve his surroundings; but grant him these, and victory over his environment is secured. We can not retrace the exact steps of this beautiful discovery; we are not sure to what family it is to be ascribed. Perhaps not to any one alone. Nature may have taken her children by the hand, and kindly guided their feeble steps in the line of experiments leading up to this knowledge, and, finally, one family, more fortunate than the others, succeeded in the attempt. All great discoveries have been approached in different directions, by different people. No sooner is it made than this fact appears, and people widely separated by time and place are found to be on the verge of the same great truth. It was probably so at the discovery of metallurgy. The Turanian tribes, who had so long inhabited Europe, were suddenly confronted by the victorious hosts of the Celts, the vanguard of the Aryans, the precursors of a higher culture. The movements of these primitive people could not fail to have a great effect on the human mind. It would become alert, keen, and active. Such was the state of ancient society when a knowledge of bronze was introduced—a discovery which consigned stone, hitherto the substance most commonly made use of to advance human interests, to a subordinate position, and opened up for man the exhaustless mineral stores of nature.