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 and oppor- 
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 every-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 simphcity 
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- 
' Professor George Lefevre, University of Missouri. 
