INDEX. 437 
Colouring matter of vegetables, a&tion of metals and oxyds on, 126. 
Comets, diftance of, from the earth, 335. 
Concretions, experiments on urinary, 38, 130, 263, 380. 
Contagion, Dr. Smyth's procefs for deftroying, 68. 
Copper, to harden, 320. 
Corn, plants produced from pounded, 187. 
Corpulency, Dr. Coindet on the caufes of, 121. 
Cotton, the ufe of the oxyds of iron in dyeing, 55. 
Cow-pox, account of Dre. Jenner and Pearfon’s work on, 193. 
Cream, a curious phenomenon in regard to, 109. 
Crell’s, Dr. experiments on vegetation, 327. 
Cruick/bank, Mr. experiments on urine by, 240. 
Cruickfoank’s, Mr. experiments on fugar, gums, &c. 364. 
Cryftallography, method of noting by thort figns, 398. 
Cuthbertfon's, Mr. apparatus for combining hydrogen and oxygen, 
317. 
Delametherie on the fyftem of forces, 277. 
Diabetes mellitus, the urine contains fugar in cafes of, 245, 247. 
-—————_ account of Dr. Rollo’s work on the, 191. 
_ Difcoveries, Ruffian expedition for making, 141. 
———_ a new voyage for, 434. 
Difeafes, todiftinguith, by the urine, 240, 
Dog, account of the Irith wolf, 168. 
Drama, propofal to improve the, 212. 
Dropfy, to dete&, by the ftate of the urine, 248. 
Dhriggetai of middle Afia, defcription of the, 113, 234. 
Duckweed (lemna), phenomenon concerning, 187. 
Dyeing, the fruit of the privet recommended for, 186. 
ufe of the oxyds of iron in, 55. 
enquiry into the ancient mode of, 211. 
experiments in, with lichens, 323. 
Dy/fentery, a cure for, 334. 
Dy/pepfia cured by oxygenating remedies, 420, 
Earth, experiments to determine its denfity, 213. 
a new one found in the black ftone of Ytterby, 322. 
Earthquake, account of one in South America, 332. 
Ecliptic, prize quefiion on the obliquity of, 98. 
Egypt, letters from French men_ot {cience in, 414. 
Egyptian Infliiute, proceedings of the, 425. 
Elediorgl Academy at Erfort, proceedings of, 105. 
EleGiric fluid, giafs permeable to, 147. 
Equus bemionus, defcription of, 113, 234. 
Eupbon, an account of, 391. 
——— on the new mufical inftrument fo called, 315. 
Eye, the retina of, tranfparent, not opaque, 215. 
Fabbroni’s procefs for making floating bricks, 180. 
Fat, Coindet’s obfervations on animal, 121. 
Fevers, ftate of the urine in, 249. Medicine for yellow, 334. 
We Ff3 Fire-balls, 
