296 
OBITUARY NOTICES. 
American Association for the Advancement of Science in 
1881, 1885, and its President in 1893. He was a member of 
several scientific societies in the United States and Europe. 
It is evident from this long and honorable record that the 
Philosophical Society has reason to be proud of this distin¬ 
guished career of one of its most devoted members. 
Frank H. Bigelow. 
ADOLPH LINDENKOHL. 
1833-1904. 
[Read before the Society, February 18, 1905.] 
Mr. Adolph Lindenkohl, the senior draftsman in the 
Coast and Geodetic Survey, died on June 22, 1904, after a 
faithful and distinguished service covering half a century. 
Mr. Lindenkohl was the son of George C. F. and A. E. 
Lindenkohl and was bom at Niederkaufungen, Hesse Cassel, 
Germany, on March 6, 1833. He was educated at the Real- 
schule (Cassel, 1844-1849) and the Polytechnische Schule 
(Cassel, 1849-1852), graduating at the latter institution in 
1852. Soon after graduating he came to the United States 
and engaged in teaching for two years. In 1854 he was 
appointed draftsman in the Coast Survey, and held this 
position with distinguished ability until the day of his death. 
In 1857 he became a citizen of his adopted country. 
Mr. Lindenkohl was a man of marked ability in his pro¬ 
fession. He was not only a draftsman ; his studies had led 
him through a range of subjects that prepared him for the 
discussion of data passing through his hands, but not always 
content with this, he would search independently for miss¬ 
ing links until he might have sufficient facts to formulate a 
theory. It was the good fortune of the writer to have close 
association with him for many years, during which time he 
could observe his methods and realize what a vast fund of 
