A SKETCH OF HIS LIFE 13 



pert biologist; and if the observation happened to be foolish the 

 reaction was often equally illuminating. In this breadth of inter- 

 est we are reminded of Darwin. 



It is strange that Brooks never published particularly on ani- 

 mal behavior. He was constantly alive to the interest anchoppor- 

 tunities presented by this field, and urged several students to 

 follow such studies; but the trend was, then, too strongly set 

 toward morphological work to permit of their diversion into this 

 other channel. I believe that his very special interest in the trans- 

 formations and life-histories of echinoderms, liver-flukes, and in- 

 sects, which has not been generally emphasized in accounts of 

 his life, was greatly affected by the charm of observing the living 

 larvae and their reactions. His enthusiasm induced several men 

 to work on these groups, as can be seen in a number of papers by 

 students whose publications are not enumerated in these ac- 

 counts. 



It seems to me that it was this e very-day intimacy with living 

 things, and his insistent reflections on their adaptive responses, 

 that attracted and held his students: This combined with a 

 single-hearted devotion to a high standard of scientific work and 

 thought. 



1888-98* During my residence of ten years at the Johns Hop- 

 kins University, as undergraduate, graduate, and assistant, suc- 

 cessively, I was thrown by fortunate circumstances into relations 

 with Professor Brooks which ultimately assumed an intimate 

 and personal character, and it is with deep appreciation and grat- 

 itude that, as I now look back upon those years, I realize the 

 influence which he exerted upon me. He was one who set by his 

 example the ideals which he wished his students to follow in scien- 

 tific work. Many for the first time learned from him the real 

 meaning of the " search for truth" as day by day in simplicity 

 and sincerity he taught us through his own truth-loving nature 

 veracity of thought and action. Many, too, learned under him- 

 for the first time to take a philosophic outlook on zoological phe- 



B Professor George Lefevre, University of Missouri. 



