ENTE EX. : : a eke 
+ 
" Saecharine principlé convertible into gum, 368. 
Saturn, obfervations on the fatellites of, 198, 282. 
Scarlatina anginofa, a cure for, 334. 
Scarlet colour anciently procured from the coccus, 211. 
Schinus molle, phenornenon concerning; 188. 
i : pes 
Schroeter, Dr. aftrohomical obfervations by, 197, 282. 
Scurvy aviles from a privation of oxygen, 123. 
—— the utine fhould be examined in cafes of, 250. 
Sefamum, the two of Linnzus, and Sc/. trifoliatum of Miller, only 
Sioa 187. 
Sheldrake’s differtation on painting in oil, 302. 
Shooting flars, Profeffor Chladni’s obfervations on, 2, 225, 338+ 
Smaill- “pox, the ufe of mercury recommended in, 108. 
a fubftitute and preventive for, 194. 
propofal for extirpating, 219. 
Smyth's, Dr. procefs for deftroying contagion, 68, 
Soft folder, metals employed in the preparation of, 375. 
Ssafmodic affections, {tate of the urine in cafes of, 249. 
Spiveries, a {ubftitute for various, 106. 
Spider, obfervations on the garden, 272. 
Springs, the properties of metal and wooden, 67. 
Stains, to remove from books and prints, 28, 30. 
Starch, propofal to improve the manufacture of, 187. 
Steam-engine, remarks on Mr. Cartwright’s, 221. 
Steel, on the choice of, and methods of hardening and tempering, 
53, 178. 
Steel, caft, a new procefs for preparing, 219. 
Stel and iron, on the principles of, 9, 155. 
Stone in the bladder, a cure for the, note, 108. 
— — experiments on, 38, 130, 263, 386. 
Sugar contained in diabetic urine, 245, 247. 
+-—— experiments and obfervations on, 364. 
Sugar of milk, Mr. Cruickfhank’s experiments on, 246, 371. 
Sumach, not a fit fubMitute for galls in dycing cotton red, 6c. 
Swedifb Academy, prize queftions by, 196. 
Tea, a fubflitute for, 106. 
Teeth, improved inftrument for extraCting, 72. 
Telegraphs, a treatife on, and a new cornfiruction of one, 324. 
Telefcopes, remarks on refleéting and achromatic, 19, 170, 177- 
Tellurium, experiments on, by Gmelin, 200. 
Thermometer, account of Mr. Keir's improved, 61. 
——_——— account of Count Rumford’s cylindrical paffage, 35g." 
Thornton, Dr. communication from, on pneumatic medicine, 429. 
Tin mixed with lead and bifmuth, very fuiible, 375. 
Tooth-ache, on infeéts that cure the, Siz! 
Traéors, experiments at Copenhagen with, 188. 
Travels of Bruguiere and Olivier in Greece, Turkey; Perfia, &¢c. 312. 
Tungfien, the oayd of, better than the oxyds of other metals for pro- 
ducing lakes with vegetable colours, 128. 
Unguentum 
