We know that in a great number of cases a mere symbol was taken to serve the purpose of something of actual, material use. Thus, the Chinese draw little coats and hats on paper and burn them, and suppose that by this means they are transmitting actual coats and hats to their ancestors in the world of spirits. In Rome, at certain periods, statuettes were thrown into the Tiber: these were substitutes for the human sacrifices formerly offered to the river. Probably the custom of giving food and drink to the dead gradually died out among the palæolithic men, but that of making the cups for the reception of the gifts remained, and as their purpose was forgotten, the stones graven with the hollows were set up anyhow. The question has been often raised whether the rock-basins found on granite heights are of artificial origin. It is perhaps too hastily concluded that they are produced by water and gravel rotating in the wind. No doubt a good many have this origin; but I hardly think that all are natural, and it is probable that some have been begun by art and then enlarged by nature, and also that natural basins may have been used by the palæolithic men as drink or food vessels for the gods or spirits in the wind. [Illustration: _Fig. 55._--MENHIR, LEW TRENCHARD.] About twelve years ago I dug up a _menhir_ that had lain for certainly three centuries under ground, and had served on one side as a wall for the “leat” or conduit of water to the manorial mill. There was no mistaking the character of the stone. It was of fine grained granite, and had been brought from a distance of some eight miles. It was unshaped at the base, and marked exactly how much of it had been sunk in the ground. It stood when re-erected 10 feet 10 inches above the surface. The singular feature in it is this. At the summit, which measures 15 inches by 12 inches, is a small cup 3 inches deep sunk in the stone, 4½ inches in diameter, and distinctly artificial. Now, that the monolith had been standing upright for a vast number of years, was shown by this fact, that the rain water, accumulating in the artificial cup, driven by the prevailing S.W. wind, had worn for itself a lip, and in its flow had cut itself a channel down the side of the stone opposite to the direction of the wind to the distance of 1 foot 6 inches. [Illustration: _Fig. 56._--THE CUP ON THE TOP.] [Illustration: _Fig. 57._--SECTION OF THE CUP.]