2 The American Geologist. July, 1905 
post-graduate students Denison ever had. Prof. Jones de- 
voted his life to the study of Botany, contributing several 
important articles to science. He taught science in the pre- 
paratory department of his Alma Mater for several years, 
was assistant botanist at Harvard for a time, resigning to 
accept the professorship of Botany at Oberlin college, 
where he served but one year, when called from his labors 
by Death, at the very opening of his career. It was because 
we two boys were first on his long list of devoted pupils 
that we were held with special regard by him. Yet in 
spite of the intimacy of my relations with him through all 
these years that have intervened it is with misgiving that 
I undertake the sad task of presenting this tribute to his 
life and character. 
In order that my views may not be colored too much 
by my own personal feeling and sense of personal apprecia- 
tion it is my purpose to express myself largely through the 
words of others and to present such views as have been 
given by them as will in my judgment bring out the salient 
features of Dr. Herrick's life and work. In a letter written 
to Rev. J. L. Cheney, Cleveland, Ohio, Sept. 27, 1904, his 
brother C. J. Herrick says : "His was a life very difficult for 
any one person to estimate, for his work was in so diverse 
fields that few men have even a speaking acquaintance with 
all of them. His life may be roughly divided into four 
periods. Very early in his career he seems to have laid out 
at least in a rough way a rather ambitious plan of action 
including for the first part of his life miscellaneous research 
and study in the broad held of general natural history — a 
general broad foundation. Then was to follow a period of 
intense specialization in the circumscribed field of zoological 
work leading up to a mastery of anatomy, and physiological 
and comparative psychology on the basis of the mechanism 
of the nervous system and to the philosophical correlation. 
So far as I am aware my brother never announced this or 
any other program, and I doubt if such a thing was ever 
definitely formulated even in his own mind ;. yet from some 
of his conversations which I remember years ago I believe 
that some such plan was in his mind. While the four peri- 
ods referred to above were marked bv extraneous events. 
