1879.] 127 [Bouvé. 
pathology rather than in natural history. He became Pro- 
fessor of Pathological Anatomy in the Medical School of 
Harvard University in 1847, and was ever after a most dili- 
gent laborer in its interests, investigating with great patience 
and with keenness of observation arising from constant 
experience, the morbid effects of disease upon the organs, 
and writing out fully and carefully the results of his ex- 
aminations, which have been of invaluable service in the 
cause of medical science. Much of his work for many years 
was in the building up the Cabinet of the Society of Medi- 
cal Improvement and its arrangement for study, and in the 
care and arrangement of the Warren Museum. Of these 
two fine collections Dr. Jackson published descriptive cata- 
logues, containing much matter of great interest to students 
in medicine and surgery. Others can write and speak more 
wisely and instructively of these great services than can the 
writer, who has only been associated with him in our So- 
ciety of Natural History and as a personal friend. His work 
for the Society has been spoken of, but what he did for it 
in labor and through publication was but a small part of 
the aid he was able to render it. No member ever felt more 
interest in its welfare, and if this was not manifested to 
the same degree in actual devotion to work upon its col- 
lections and to investigations in Natural History subjects, 
it was only because his valuable time was preoccupied by 
the duties owed to his official position. He has always 
been in the habit of attending the meetings of the Society, 
and always exhibited a strong desire that they should be 
made as instructive as possible to younger members, to 
such particularly as were entering the paths of science. 
He was ever urgent, too, that all the specimens of the col- 
lections of the Society should be so distinctively and fully 
arranged and labelled that all visitors might clearly under- 
stand their character and relations. He indeed sometimes 
felt impatient that this was not already accomplished, so 
important did he regard it as a means of education; though 
