QC 
432 [Feb, 15, 
Ruschenberger,] 
uary, 1836 ; a resident member of the Philadelphia College of 
Pharmacy, December, 1838; a fellow of the College of Physi- 
cians of Philadelphia, July, 1842; and he was chosen a mem- 
ber of the American Philosophical Society, January 19th, 1844. 
He was a councillor of the Society from January, 1855; 
chairman of its publication committee six years, from 1860, 
and served on many special committees. 
His first work in the Academy of Natural Sciences was the 
preparation, in conjunction with Dr, Paul B. Goddard, of an 
Index of the genera of the Herbarium, which was presented 
August, 1835. He served on the Botanical Committee twenty- 
one years, from January, 1836. In May, 1848, he presented a 
new Index of the Academy’s Herbarium, and an Index of 
Menke’s Herbarium, works which were long the main guides 
to the Academy’s botanical collections. 
He was librarian from June, 1836, till May, 1839, when he 
resigned. The thanks of the Society were presented to him 
for “his able and efficient discharge” of the duties of the 
office. 
He served as Recording Secretary five months in 1839 and 
40; and as Corresponding Secretary from May, 1840, till De- 
cember, 1841. He was an Auditor six years, from December, 
1843, one of the Vice- Presidents more than fourteen years, from 
September, 1850, and was elected President, December, 1864. 
He declined re-election December, 1865. 
He served twenty-three years on the Publication Committee, 
declined re-election in 1872; twenty-nine years on the Library 
Committee, from December, 1842; seven years on the Com- 
mittee on Proceedings; five years on the Committee on Finance; 
seventeen years on the Committee on Entomology and Crusta- 
cea. He labeled and arranged anew the collection of crustacea 
according to the nomenclature and classification accepted at 
the time as the best. He was a member of the Committee on 
Herpetology and Ichthyology nine years, from January, 1857 ; 
on Physics ten years, from January, 1866; on Chemistry five 
years, from December, 1870, and a member of the Council more 
than five years, from December, 1869. ‘ 
