[ S3i ] 
I 
N 
A N 
D 
TO THE 
E 
X 
SEVENTY-FIRST VOLUME 
OF THE 
PHILOSOPHICAL TRANSACTIONS, 
A. 
TO US acid. See Kir wan. 
Acids. It is harder to find the point of figuration with the vegetable than tha 
mineral acids, and why, p. 33. 
Adair , James, Efiq. amazing effeds of lightning on, p. 42. ■. 
Ada 7 ifon. Mr. See Smeathman. 
Adfedled Equations. See Stanhope, Wales, 
Air. The abfolute weight of many forts of, accurately determined by ; Mr. Fontana, 
p. 9. Of its fpecific gravity in its fijted ftate, p. 33. See Kirwan. 
Aldro'vandus. Draws his arguments, in relation to the Turkey, from the fame fourse 
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.^396. See Atwood. 
Animals producing Cold. See Crawford. 
Antelopes and Gbazels , about twenty different kinds of, to be found in Africa, p. 1. . 
AJlronomy. No fcience has advanced fo near perfe&ion, in fo fhort a time, lince the 
invention of the telefcope, p. 115. 
Atheneeus, his account of the Meleagrides, which Belon miflook for the Turkey, p. 73. 
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