Megalithic monuments are perhaps the most interesting of all the witnesses of the remote past, into the history of which we are now inquiring, and of which so little is known. From the shores of the Atlantic to the Ural Mountains, from the frontiers of Russia to the Pacific Ocean, from the steppes of Siberia to the plains of Hindustan, we see rising before us monuments of the same characteristic form, built in the same manner. This is a very important fact in the history of humanity, and of which it is difficult to exaggerate the importance. What is.
