INDEX. 
Signs, -f- and — , their signification, 
Sign s/— 1, its signification, - 
description of position, geometric, 
Signs , expressive of inclination, 
Smeaton , experiments on mechanic force referred to, 
Smithson, James, Esq,. Account of a discovery of native 
minium, - - 
Solar motion, investigation of its velocity, 
confirmed by observations on 36 stars, 
-effects of its increase and decrease, 
calculations for delineating, 
Stars , declination of some principal, 
proportional distances of, 
proportional velocities, — 
direction of their motions, - 
causes of their motions examined, 
— calculations of the attractive power, 
- calculations of figures to represent their motions, 
remarks on their motions, ... 
proper motions probably not constant, 
Stomachs of bullocks, - 
-, first, .... 
, second, - 
-, third, - 
— , fourth, - 
, of camel, - - 
Sulphuric acid , its action on resins, - 
— — on linseed oil, 
— - — on wax, - 
*— — — on animal fat, 
Sumatra worm- shell, - 
Sun, velocity of its motion examined, 
— — determined, 
Suppression of urine , from an enlargement of the prostate gland, 20 3 
page 
23 
27 
2 9 
73 
IS 
2 67 
205 
2 19 
208 
22 2 
454 
207 
209 
215 
224 
227 
213 
2 17 
433 
362 
3 62 
363 
364 
365 
365 
109 
111 
111 
112 
269 
205 
232 
Tannin , substance resembling, - ~ 109 
— * .- I n ' produced from pit-coal, - 116 
— — — ■ ■ — — from roasted vegetables, 118—123 
— — — from peat, - » 128 
from submerged woods, - 127 
