remember this, and strive here in the first place for the advancement of Pure Science.
Scientific investigations we may divide into two classes. Those in pure science which are directed solely to the advancement of natural knowledge, the discovery of Nature's laws; and those which have for their aim the application of these discoveries to the processes of our everyday life in art, or commerce, or manufacture. There is no need to lay stress in this room on the paramount importance of the first class. The Cavendish Professor, speaking recently in London, said truly "the discoveries in applied science may produce a reformation, those in pure science lead to revolutions."
The book Science and the Nation, to which I have already referred, written, according to the preface of the Master of Downing, to enable the reader to grasp in its true perspec-
