Nothing is more surprising to the student of antiquity than to find at what seems the very beginning of civilisation such monuments as the Pyramids and the great sculptures of Egypt and Mesopotamia. But a moment’s reflection makes it clear that man must have learned to house himself, as well as to clothe himself, before he can have started on that tour of conquest of the world which was so far advanced before the dawn of history. Doubtless the original home of man must have been in a tropical or subtropical climate, and he cannot well have left these pampering regions until he had made a considerable development, almost the first step of which required that he should gain the means of protecting himself from the cold. The idea of such protection once acquired, its elaboration was but a question of time. It is amazing to observe how closely, both as regards attire and building, man had approximated to the modern standards at the time when he first produced monumental or other records that have come down to us. _Third. The Use of Fire._ Quite as fundamental as the matter of housing and clothing, and even more marvellous, considered as an invention, was the recognition of the uses of fire, and the development of the methods of producing fire at will. It is conceivable that some individual man at a relatively early stage of human progress developed and elaborated this idea, becoming the actual inventor of fire as applied to human uses. If such was really the case, no greater inventor ever lived. But the wildest flight of speculative imagination does not suffice to suggest where or when this man may have lived. It cannot well be doubted, however, that the use of fire must have been well known to the earliest generations of men that attempted to wander far from the tropics. Clothed, housed, and provided with fire, man was able to undertake the conquest of all regions, but without fire he dare not have braved the winters even of the middle latitudes, to say nothing of Arctic regions. No doubt the earliest method of producing fire practically employed was by friction of dry sticks, much after the manner still in use among certain savage tribes. Obviously the flint and steel, which for so many thousands of years was to be the sole practical means of producing fire among the civilised races, could not have come into vogue until the age of iron. The lucifer match, which was finally to banish flint and steel, was an invention of the nineteenth century. _Fourth. Implements of Peace and War._