1884, | 441 [Ruschenberger, 
part of it annually to create resources sufficient for invalid days 
and old age, even after continuous toil during thirty or forty 
years. Possibly better than increased remuneration for these 
beneficent servants of the people would be a college fund from 
which those professors who have become incapable of perform- 
ing their official duties, by age or otherwise, might receive a 
moderate pension or retired pay ; at any rate the emeritus pro- 
fessor should have a salary. 
When the professorship of chemistry in the Jefferson Medi- 
cal College was vacated, in 1864, by the death of the incum- 
bent, Dr. Bache, Dr. Bridges was one of séven candidates for 
the vacancy. It was filled by the election of Dr. B. Howard 
Rand. 
While discharging, efficiently and most acceptably, his duties 
at the Academy of Natural Sciences, and in the Philadelphia 
College of Pharmacy, he found time to teach medical chemistry 
in the Philadelphia Association for Medical Instruction, to 
attend the meetings of the American Philosophical Society, 
and of the College of Physicians of Philadelphia, and render to 
it valuable service. He was one of its delegates to the National 
Medical Convention held in Philadelphia, May, 1847, and sub- 
sequently was one of the representatives of the college in the 
American Medical Association. 
He analyzed the collection of one hundred and eighty-five 
urinary-calculi in the Miitter Museum, which belongs to the 
college, and made a catalogue of them, 
In January, 1867, he was elected a member of the library 
committee and appointed librarian. The duties of the office 
occupied him daily from 11. o’clock, A.M., till. 8--o’clock, 
P.M. In January, 1879, he declined re-election to the library 
committee, and failing health induced him to resign the office 
of librarian, January, 1881, having filled it during fourteen 
years. Then, on motion of Dr. DaCosta, it was unanimously 
resolved “that the thanks of the college be tendered to Dr. 
Bridges, for his long, faithful and intelligent services to the 
college, and that they deeply regret that failing health will 
deprive the college of his labors; that as a slight token of ap- 
PROC. AMER. PHILOS, 80. XxI. 115. 83D, PRINTED MAY 8, 1884, 
