Obituary. - 165 
this was substantially affirmed by the report of the Committee of 
the American Academy Arts and Sciences, at Boston, which, 
after an impartial review of Dr. Draper’s work, recommended the 
award by the Academy of ‘ie Rumford Medals for the year 1875 
(one of gold and one of silv er) to Dr. Draper for his “ Researches 
on Radiant Energy.”* This was only the sixth award of the 
Rumford Medal in about sixty years. The previous five awards 
were (1) to “Fete (1839) for the jaieeihin of the oxy-hydrogen 
blowpipe and improvements in voltaic apparatus; (2) to Ertcsson 
(1862) for his piri engine; (3) to TreapweLt 1865) for im- 
provements in management of heat; (4) to Arvay CLark (1867) 
improvements in the lenses of ra aasatins telescopes; (5) to 
Coruiss (1870) for improvements in me steam engine. ‘This 
enumeration shows that the award to Dr. Draper was for. impor- 
tant discoveries in science, while the others, excepting in the case 
r. Hare, were for inventions and improvements, It rarely 
falls to the lot of any one investigator in physical research to add 
so largely to the triumphs of science over the unknown 
ur admiration, however, of the author’s ability and industry 
is increased, when we review the considerable number of impor- 
tant memoirs which he has contributed to the departments of 
chemistry, electricity and physiolo e have to regret that 
the autbor did not find nine ee in his declining years, to give to 
the world his memoirs on chemical, electrical and physiological 
must reserve.” But it is a great satisfaction that he has left, as 
his literar ry executors, sons whose names are well known in the 
annals of science, from whom we may look for the aie of 
moirs so reserved. A full list of Dr. Draper’ $ papers, ¢ 
by himself, will be found in the writer’s address tinted ** Con- 
ae to Chemistry,” 1874, pages 78-82 
r. Draper was not simply an experimental i investigator of 
deen phenomena. e was an earnest and also a deep thinker in 
the department of the philosophy of “aie and human progress, 
and his works in this direction were among his most elaborate 
eHorts. He says: “ From the study of individ man it is but a 
step to the uitep ying of him in his social ce and this, 
accordingly, had been done in the second par my work on 
Physiology. But ry subject being too poor ae $s be dealt with 
satisfactorily in that a I have published the materials Se 
I had collected in a se e book uncer the title of ‘A History 
of the Intellectual Develoninent of Europe.’” The view ipurtne he 
aimed to illustrate in this work is that the ageless progress of 
nations proceeds in the same course as the intellectual develop- 
ment of the individual; that the eee ae ic of both is not fortu- 
aw. 
yea ee of America,” his elaborate “ History of the Ameri- 
ivil War,” in three volumes, and his “ History of the Con- 
Haig American Academy, IJ, xi, 313, 325, May 25, 1875, March 8, 1876, 
