As was to be expected, a work of that nature, and which attacked the established faith in the Druids, has been exposed to a considerable amount of hostile criticism, but nothing has yet appeared that at all touches the marrow of the question, or invalidates any of the more important conclusions therein arrived at. On the other hand, everything that has since come to light has tended to confirm them in a most satisfactory manner. Colonel Brunon’s researches, for instance, at and around the Madras’en, in Algeria, have proved that the tumuli in that cemetery belong to Roman times.[2] In India sculptured and inscribed dolmens have been dug up and photographed, so that their age is no longer doubtful, and others, as archaic in form as any, are found belonging to reigning families of chiefs, and still used by them. Last, not least, Dr. Schliemann’s explorations at Hissarlik have deprived the prehistoric advocates of one of their most plausible arguments. At a depth of 8½ metres from the surface he found the remains of a walled city, with paved streets, and rich in gold, silver, and copper, with their alloys electron and bronze, and every sign of a high civilization. Above this, through four or five metres of successive deposits, indicating probably a duration of twice as many centuries, no trace of metal was found, but, as he expresses, an “ungeheure menge,” and, in another place, a “kolossale menge,” an unlimited number of rude stone implements of every sort. Above this again, the remains of the Greek city of Ilium Novum. If this were the case in Asia Minor in historic times, it is in vain to argue that, when the imported civilization of the Romans passed away, the Britons may not have returned to their old faith and old practices, and adhered to them till a new conquest and a new faith led to their being finally abandoned. It may, or it may not, have been so, but till some better argument than has yet been brought forward is adduced to prove that it was not so, the _à priori_ argument of improbability will not now avail much. Whenever the facts, as stated in the ‘Rude Stone Monuments,’ are admitted, or any better set of conclusions substituted for them, their history may be added as a fifth volume to this work. Till then, people must be content with the hazy nihilism of the prehistoric myth. FROM THE PREFACE TO THE FIRST EDITION.