64 A. Gray—Memorial of George Engelmann. 
physician, in large and general practice, who even in age and 
failing health was unable—however he would have chosen— 
to refuse professional services to those who claimed them ; that 
he devoted only the residual hours, which most men use for 
rest or recreation, to scientific pursuits, mainly to botany, yet 
not exclusively. He was much occupied with meteorology. 
On establishing his home at St. Louis, he began a series of 
thermometrical and barometrical observations, which he con- 
tinued regularly and systematically to the last, when at home 
his maximum and minimum thermometers. His latest publica- 
tion (issued since his death by the St. Louis Academy of Sci- 
ences) is adigest and full representation of the thermometrical 
pat of these observations for forty-seven years. He apologizes — 
or not waiting the completion of the half-century before sum- 
ming up the results, and shows that these could not after three 
more years be appreciably different. 
ist of Dr. Engelmann’s botanical papers and notes, collected 
De Antholysi Prodromus), is a treatise upon -teratology in its 
relations to morphology. It is a remarkable production for | 
the time and for a mere medical student with botanical. predi- — 
lections. There is an interesting recent analysis of it in 
“ Nature,” for April 24, by Dr. Masters, the leading teratolo- _ 
gist of our day, who compares it with Moquin-Tandon’s more — 
elaborate Tératologie Végétale, published ten years afterwards, 
and who declares that, ‘‘ when we compare the two works from 
in Coulter's Botanical Gazette for May, 1884, contains about — 
one hundred entries, and is certainly not quite complete. His — 
earliest publication, his inaugural thesis already mentioned 
a Wied 52 
by his friend and associate, Professor Sargent, and published — 
a philosophical point of view, and consider that the one was a— 
mere college essay, while the other was the work of a professed _ 
botanist, we must admit that Engelmann’s treatise, so far as it 
goes, affords evidence of deeper insight into the nature and 
eauses of the deviations from the ordinary conformation of — 
plants than does that of Moquin.” 
Transferred to the valley of the Mississippi and surrounded — 
by plants most of which still needed critical examination, Dr. — 
Engelmann’s avocation in botany and his mode of work were 
marked out for him. Nothing escaped his attention; he drew — 
with facility ; and he methodically secured his observations by 
notes and sketches, available for his own after use and for that i 
of his correspondents. But the lasting impression which he — 
has made upon North American botany is due to his wise habit _ 
of studying his subjects in their systematic relations, and of ; 
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