So far no great harm was done; but Dr. Stukeley, who next appeared in the controversy, was one of the most imaginative of men and one of the wildest of theorists. His studies had made him familiar with the Druids, whom classical authorities describe as the all-powerful priests of the Celtic race, but who had no temples; on the other hand, his travels made him acquainted with Stonehenge and Avebury, to the latter of which attention had just been called by the researches of his friend Aubrey. Here, then, were temples without priests. What could be so natural as to join these two, though in most unholy matrimony. Our stone circles must be temples of the Druids! But there was still one difficulty. What divinities did they worship therein? Cæsar tells us that the Celts or Celtic Druids principally worshipped Mercury and some other Roman gods whom he named;[3] but no images of these gods are found in these temples, nor anything that would indicate a dedication to their worship. Unfortunately, however, Pliny[4] tells a very silly tale, how in Gaul the snakes meet together on a certain day and manufacture from their spittle an egg (_Anguinum_), which, when complete, they throw aloft, and if any one wants it, he must catch it in a blanket before it falls to the ground, and ride off with it on a fleet horse, for if the snakes catch him before he crosses a running stream, a worse fate than Tam o' Shanter's may befall him! He then goes on to add that this egg was considered as a charm by the Druids. From this last hint Dr. Stukeley concluded that the Druids were serpent-worshippers, and consequently that Stonehenge, Avebury, &c., were serpent temples--Dracontia, as he calls them, daringly assuming that a word, which in the singular was only the name of a plant, was actually applied by the ancients to serpent temples, of the form of which, however, they were as ignorant as the Doctor himself. Having advanced so far, it only remained to adapt the English circles to this newly discovered form of worship, and Avebury was chosen as the principal illustration. There was a small circle on Hakpen Hill, which had a stone avenue formed by six or eight stones running east and west; between West Kennet and Avebury there was another avenue leading to the circles, but trending north and south. By introducing a curved piece between these fragments, Hakpen became the head of the snake, the avenue its body; Avebury a convoluted part of it, and then a tail was added, a mile long, on the authority of two stones in the village, and a dolmen, called Long Stone Cove, about halfway between Avebury and the end of the tail! Stanton Drew and other circles were treated in the same way; curved avenues, for which there is not a shadow of authority, except in the Doctor's imagination, were added wherever required, and serpents manufactured wherever wanted. It never seems even to have occurred to the Doctor or his contemporaries to ask