1882. 107 Trans. N. Vo ACSC. 
were graduated. The existence of the school was imperiled in 1865, 
when fire destroyed its building, with the museum and apparatus; but 
Dr. Draper succeeded in obtaining temporary accommodations, and 
the exercises went on without the loss of a single day. Dr. Mott re- 
signed the Presidency of the Medical Faculty in 1850, and was suc- 
ceeded by Dr. Draper, who retained the position until 1873, when he 
resigned it in order to devote himself wholly to his duties in the Colle- 
giate Department. 
Dr. Draper’s lectures on physiology were as eloquent as they were 
original, and reflected well his daily work as an investigator. They 
were published in 1856 as a 7veatzse on Human Physiology, which 
was recognized at once asa substantial contribution to the rapidly de- 
veloping science of whichit treated. This work was the record of ob- 
servations covering more than twenty years. 
The Hestory of the Intellectual Development of Europe was but 
the outgrowth of the work on physiology—a grand expanding of its 
second portion. Itis familiar to most of us, and needs neither descrip- 
tion nor discussion here. Soon after the publication of this work, Dr. 
Draper began the preparation of a Aéstory of the Civil War in 
America, which was published in three large volumes. During its 
preparation he enjoyed exceptional advantages. 
After completing the /Z/7stor-y of the Czvzl War, Dr. Draper re- 
turned to those physical studies of which the continuity had been in- 
terrupted by his literary labors. During the last ten years of his lite 
he revised his earlier publications, and gave them in condensed form 
under the title of Sczentzfic Memozrs. In these he included also the 
results of investigations conducted during the preparation of this vol- 
ume, some of which were of cardinal importance. 
It would be difficult to over-estimate the value of Dr. Draper’s 
labors, which are interwoven with the progress of scientific discovery 
during the last forty years. Hewas the first to take the human por- 
trait by light, and he was the first to discover and to photograph the 
lines below the red in the spectrum. He laid the foundation on which 
Bunsen and Kirchoff reared a noble superstructure, without much re- 
gard to the master builder who had preceded them in the work. Of 
his discoveries in physiology, the most important were made so long 
ago that they have now become incorporated into the science so fully 
that the name of the discoverer is rarely mentioned in connection with 
them. 
This Academy should hold the memory of Dr. Draper dear to it. 
Soon after reaching New York he became an active member of the 
Academy, then the Lyceum of Natural History. Many of his earlier 
results were first announced in its meetings, and the proofs of his dis- 
