C 531 ] 
A N 
INDEX 
TO THE 
SEVENTY - FIRST VOLUME 
OF THE 
PHILOSOPHICAL TRANSACTIONS. 
Acids . It is harder to find the point of faturation with the vegetable than the 
mineral acids, and why, p. 33. 
Adair , James, Efq. amazing effects of lightning on, p. 42. 
Adanfon • Mr. See Smeathman, 
AdfeBed Equations . See Stanhope t Wales , 
Air, The abfolute weight of many forts of, accurately determined by Mr. Fontana, 
p. 9. Of its fpecific gravity in its fixed date, p. 33. See Kirvoan . 
Aldrovandus. Draws his arguments, in relation to the Turkey, from the fame fourae 
as Belon, p. 73. 
Algebra and Geometry, Really but one fcience, differently treated, p. 457. 
Alkali , fixed vegetable. See Kirwan. 
Amazons, river. Its medium rate of motion nearly equal to that of the Ganges, p. 93> 
The tide perceptible there 600 miles, p. 109. 
Angles, Taken at fea by Hadley’s quadrant, P.J396. See Atwood, 
Animals producing Cold. See Crawford. 
Antelopes and Gbazels , about twenty different kinds of, to be found in Africa, p. r. 
AJlronomy . No fcience has advanced fo near perfection, in fo fhort a time, fince the 
invention of the telefcope, p. 115. 
Athenaus , ;, his account of the Meleagrides, which Belon miflook for the Turkey, p. 73. 
A. 
C E TO U S acid. See Kirwan, 
Atvjoo v 3 
V 
