t 474 D 
A N 
INDEX 
TO THE 
SEVENTY - SEVENTH VOLUME 
* 
1 
OF THE 
♦ 
PHILOSOPHICAL TRANSACTIONS. 
A. 
/ iCID , vitriolic, experiments of the aCUon of, on fieel and iron, p. 17. Expert- 
^ menis on the congelation of, p. 26;. 
Air, depklogijlicatcd , experiments on the production of, from water with various 
iubftances, p. 84. Effett of light on the production of, p. 91, 
Air hepatic, fur les gas hepatiques, p.305. 
Algebra , on finding .the values of algebraical quantities by converging feriefes and 
demonftrating extending propofitions, p. 71. Demonllration of fome proportions of 
Pappus, p. 75. Some improvements in, by Defcartes, Harriot, Sciioolen, Newton, 
Campbell, and Maclaurin, p . Si. 
Anatomy , difficulties of obtaining knowledge of the larger marine animals, p. 371. 
Animal bodice, their power of refilling heat and cold, p. 31 1. 
Arteries of Whales, p. 415. 
Avrora borealis , efl'eCt of, on the magnetic needle, p. 24. 
E. 
