CONTENTS 



PAGE 



SCIENCE AND LIFE . . . . . i 



From an Article originally contributed to The Candid Quarterly 

 Review^ and republished in abbreviated and revised form in The 

 Studtnt Movement, Dec. igiS-Feb. 1919. 



PHYSICAL FORCE MAN'S SERVANT OR HIS MASTER? . 25 



Address to the Aberdeen Branch of the Independent Labour 

 Party, Nov. 1915. 



CHEMISTRY AND NATIONAL PROSPERITY . . .43 



Remarks to the Aberdeen Chamber of Commerce, Annual 

 Meeting, Feb. 1916. 



SCIENCE AND THE STATE . . . . -49 



Address to the Aberdeen Branch of the Independent Labour 

 Party, Oct. 1916. 



THE FUTURE OF SCIENCE, AND WHAT BARS THE WAY . 65 



Presidential Address to the Aberdeen University Scientific 

 Association, Nov. 1916. 



THE EVOLUTION OF MATTER . . . .85 



Contributed to the Aberdeen University Review, Feb. 1917. 



THE CONCEPTION OF THE CHEMICAL ELEMENT AS EN- 

 LARGED BY THE STUDY OF RADIOACTIVE CHANGE 1 1 1 



Address to the Chemical Society, London, Dec. 1918 ; published 

 iu the Journal of the Chemical Society , Transactions, Jan. 1919. 

 zi 



