P RE F AC E 



THE essays included in this volume are a selection of 

 occasional addresses which have been given during the 

 last fifteen years on some of the topics that confront a 

 man of science engaged in a modern university. They 

 may be of interest in showing one aspect of the educa- 

 tional campaign that is being carried on in these newer 

 centres of learning. Like any collection of addresses, 

 this one may weary by its repetitions and reiterations ; 

 but on consideration it seemed better, and it has 

 certainly been easier, to reprint the essays individually 

 without alteration, than to attempt to combine them 

 into a more systematic treatise on science and educa- 

 tion. The concern of the author, it will be seen, has 

 been to raise his voice equally against pedantry and 

 Philistinism, the'Scylla and Charybdis through which 

 our Universities need to-day such careful steering. 



A. S. 

 LEEDS, Jan. 1921. 



