It may be well to enumerate the various tools which would have formed a complete outfit for a neolithic household. The kinds which were made from a block of stone were celts, which comprised hatchets and adzes, and of which some may have been used as chisels and knives; axes perforated for the insertion of a handle; chisels and gouges; hammer-stones, pestles, and whetstones. Most readers are familiar with the term ‘celt’; but not every one is aware that it has no connexion with the name of the people who were the latest prehistoric invaders of these islands, and is simply an Anglicized form of a Latin word, meaning a chisel, which does not occur except in the Vulgate.[260] Some celts were ground or polished only on the edge; some over their whole surface; and a few are so exquisitely finished on both sides that the labour which was devoted to them would have seemed excessive unless it had been a labour of love.[261] On the other hand, many were neither ground nor polished; and some of the ruder ones may have been used as agricultural implements.[262] Several have been found with pointed butts and extremely elongated oval sections, which have the closest resemblance to celts from the West Indies, and illustrate the truth of the observation that identity in form of implements, weapons, and other objects belonging to widely separated lands does not necessarily prove community of origin, but as a rule merely shows that similar wants in similar circumstances produce similar results.[263] Although those celts which were used as hatchets or adzes were evidently mounted, there are some that show grooves on both sides or notches on one side, which seem to have been intended to enable them to be easily grasped.[264] Most of the handles, having been made of wood, have naturally perished; but two hatchets, now in the British Museum, have been found with their handles complete,--one in Solway Moss by a man digging peat for fuel,[265] the other in the bed of a Cumbrian lake called Ehenside Tarn.[266] Unlike the Swiss lake-dwellers, who had learned to fix their blades in deer-horn sockets, which were sufficiently elastic to prevent the wooden hafts from being injured by concussion,[267] the makers of these hatchets had simply mounted them in a hole which fitted the butt, but which, by the jar of repeated blows, must soon have become split.[268]