He had made many discoveries which were unknown to his Old Stone predecessor. Instead of always hunting for his food, like an animal, he found out that the earth would give him corn with which he could make bread, if only he took the trouble to cultivate it. Instead of always slaying animals, he found that some were quite ready to be his servants, and give him milk and wool and food. He brought with him to our shores cows and sheep and goats, horses and dogs. Moreover he made pottery, moulding the clay with his hand, and baking it in a fire. He had not discovered the advantages of a kiln. He could spin thread, and weave stuffs, though he usually wore garments of skins. His dwellings were no longer the caves and forests, for he made for himself rude pit huts, and surrounded himself, his tribe, and cattle with a circular camp. Traces of his agricultural operations may still be found in the "terraces," or strips of ground on hillsides, which preserve the marks of our early Neolithic farmers. [Illustration: BARBED AND LEAF-SHAPED ARROW-HEADS] Their implements are far superior to those of the Old Stone men, and are found on the surface of our fields, or on hillsides, where they tended their flocks, or dug their rude pit shelters. Their weapons and tools are highly polished, and have evidently been ground on a grindstone. They are adapted for an endless variety of uses, and are most skilfully and beautifully fashioned. There are finely wrought arrowheads, of three shapes--barbed, tanged and barbed, and leaf-shaped; axes, scrapers for cleansing and preparing skins for clothing, hammer stones, wedges, drills, borers, knives, and many other tools. In the Reading Museum may be seen a heavy quartzite axe and chipped flint hatchet, which were found with some charred timber on an island in the Thames, and were evidently used for scooping out the interior of a boat from a tree with the aid of fire. So this New Stone man knew how to make boats as well as a vast number of other things of which we shall presently speak more particularly. His descendants linger on in South Wales and Ireland, and are short in stature, dark in complexion, and narrow-skulled, like their forefathers a few thousand years ago. [Illustration: NEOLITHIC AND BRONZE IMPLEMENTS] Another wave of invaders swept over our land, and overcame the long-headed Neolithic race. These were the Celtic people, taller and stronger than their predecessors, and distinguished by their fair hair and rounded skulls. From the shape of their heads they are called Brachycephalic, and are believed to have belonged to the original Aryan race, whose birthplace was Southern Asia. At some remote period this wave of invaders poured over Europe and Asia, and has left traces behind it in the languages of all Indo-European nations.