The Lettsomian Lectures 1900-1901

Mr. President and Gentlemen,—My first duty this evening is to thank you, which I do most heartily and gratefully, for the honour you have done me by selecting me to deliver the Lettsomian Lectures for the present year. My second duty is to spend as little time as possible on preliminary remarks, for—as you, Sir, know, having yourself occupied this distinguished place on a former occasion—three hours are all too brief for useful presentation of material which one has collected for a purpose ...