During the successive Glacial periods which seem to have occurred at regular intervals and of increasing or diminishing intensity, what were the climatic conditions in the present tropical regions?

This is dated from Southern India, where I am endeavouring to visualise and imagine some of the climatic conditions in which ancient man at some of these periods may have lived, and in which the implements, of which I am finding some beautiful examples, may have been made and used and subsequently abandoned, being now found in certain positions and horizons.

Cuddapah is the chief town of a district where I have found most of the implements of palæolithic type of which I have given series to, I suppose, more than a hundred museums. If I include African and Egyptian implements, then the number of museums and institutions is 246 in all. Cuddapah is pretty well searched out now as regards implements, as there is a native whom Mr. McLeod, the late Collector of Cuddapah, trained as a searcher, and who has usually been with me and who is with me on the present occasion, who has searched most of that district in my company. Dr. Sturge has very beautifully and clearly applied the Draysonian theory to certain questions in prehistorics. While man in Northern Europe was being driven backwards and forwards, and alternately scorched and frozen for thousands of years, alternating with long periods of comparative climatic repose such as we are now enjoying, what, I ask, was happening to his confrère in India? As far as I can ascertain from the evidential positions and surroundings of such palæolithic implements as I have myself picked up, the climate in this part of the world was devoid of those catastrophic floods and alternating Arctic and Tropical climates which must have made life so exciting in other latitudes.