In former parts of these “Proceedings” Dr. W. Allen Sturge, M.V.O., has put forward views concerning the striæ on surface implements, views which are so opposed to the canons of geology and archæology, and involve so great an upheaval of accepted beliefs, that but for the skill with which the facts and conclusions were marshalled, they would not have received a moment's consideration. Few archæologists have the material on which to form a reliable judgment, and fewer still are prepared to accept the upheaval of current views rendered necessary by the adoption of the theory that minor glaciations occurred after the deposition of the chalky boulder clay. Even more revolutionary was the view as to the occurrence of a glacial period at all and this was strenuously fought for many years, and even now is by no means accepted by all geologists. The drift deposits were referred to by old writers as “Extraneous Rubbish,” and were sometimes divided into Diluvium and Alluvium. It was not until 1840, when Agassiz read his paper before the Geological Society on “Glaciers, and the Evidence of their having once existed in Scotland, Ireland, and England,” that this momentous explanation of a vast and difficult problem was given to geologists, and years elapsed before it was generally accepted.