Whatever may be the difficulties, however, we are already able to come to certain definite conclusions. We cannot connect the megalithic monuments with any one of the ancient religions known. They were certainly not set up in honor of Odin or of Osiris, of Astarte or of Athene, the Phoenician or the Egyptian, the Greek or the Roman gods; their erection seems to have had but one end in view, to do honor to the dead. Beneath none of them do we find the remains either of the cave-bear or of the reindeer, still less of the mammoth or of the rhinoceros; whereas we do constantly meet with the bones of animals characteristic of Neolithic times. It is therefore to that period that we must attribute the more ancient of these mysterious monuments. And the setting up of such memorials continued throughout the intermediate time between the Stone and Bronze ages, and through the Bronze and Iron periods. It was, indeed, still practised now and then in the earlier centuries of the Christian era. More than that, such monuments are even now occasionally erected. The Khassias of India make cromlechs of large, flat unhewn stones, some six to seven feet high, and the Angami-Nagas of the extreme north of British India set up extensive alignments of menhirs, similar to those of France. Inscriptions in the old Irish cipher writing, known as ogham, prove that megalithic monuments were erected in Ireland after the time of St. Patrick; and, as we have already remarked, some of the Breton menhirs are surrounded by crosses. In India, too, we find the symbol of the Christian faith, and in 1867, were discovered on the shores of the Godavery between Hyderabad and Nagpore, a few dolmens made of four upright stones surmounted by one or two slabs of sandstone, and encircling a cross which is said to date from the same age as the dolmens themselves. We must add, however, that the most competent archæologists are of opinion that this form of the cross was not introduced into India until about the sixth or seventh century of our era. Probably the erection of megalithic monuments was not discontinued in England or in France until towards the eighth or ninth century after Christ; and the menhirs set up later in Scotland and in Scandinavia prove how fondly the people of those countries clung to ancient traditions. These rude stone monuments were handed down from one race to another, from invaders to invaded, from conquered to conquerors.