CHAPTER VIII.
THE STONE AGE—PAST AND PRESENT.
The Stone Age is that period in the history of mankind during which stone is habitually used as a material for weapons and tools. Antiquaries find it convenient to make the Stone Age cease whenever metal implements come into common use, and the Bronze Age, or the Iron Age, supervenes. But the last traces of a Stone Age are hardly known to disappear anywhere, in spite of the general use of metals; and in studying this phase of the world's history for itself, it may be considered as still existing, not only among savages who have not fairly come to the use of iron, but even among civilized nations. Wherever the use of stone instruments, as they were used in the Stone Age proper, is to be found, there the Stone Age has not entirely passed away. The stone hammers with which tinkers might be found at work till lately in remote districts in Ireland,[1] the huge stone mallets with wooden handles which are still used in Iceland for driving posts and other heavy hammering,[2] and the lancets of obsidian with which the Indians of Mexico still bleed themselves, as their fathers used to do before the Spanish Conquest,[3] are stone implements which have survived for centuries the general introduction of iron.
Mere natural stones, picked up and used without any artificial shaping at all, are implements of a very low order. Such natural tools are often found in use, being for the most part slabs, water-worn pebbles, and other stones suited for hammers and anvils, and their employment is no necessary proof of a very
