INDEX. 



Sulphur, foiutions of in alcohol and the 



varloui kinds of ether, 68 

 Sulphureous acid gas condenfed by pref- 



fure, 236 



Sutures, their ufe in the IkuUs of aaimals, 



343 



Swisten, Van, 47 



T. 



Tan, artificial, 23. — Correiaion of ifs 

 name in a former volume of this work, 

 jb. — Is nearly indeftruftible by nitric 

 acid, ib. — Attempt to form it by oxi- 

 muriatic acid unfuccefsful, 27. — Might 

 be formed from uncharred fubftances, 

 ib. — Obtained from aimoft every vege- 

 table body when repeatedly diftilled with 

 nitric acid, 28. — Three varieties of, 33 



Teeth, enamel of, does not contain flu- 

 oric acid, 214 



Temperature of water, 189 



Tennant, Mr. his difcoveries in the ore of 

 platina, 119 



Thermometer raifed by a blafl; of air from 

 beilows, 73 



Thorftfon, Dr. on falivary concretions, 

 37S*— On the melting point of fperma- 

 ceti, 376. 



T. I.'s aftronomical inflrument, 372 



Time keepers, explanation of thofe in- 

 vented by Mr. Eain/haw, 419. 



"Torpedo, the ihock of different from that 

 of eleftricity, and inferior to that of 

 the gymnotus of South America, and 

 can only be excited by irritating the 

 animal, 181. — Has no influence on the 

 eleftrometer, 18a, — Is condudled by 

 water, but tot by flame, 183 — Cannot 

 be obtained without immediate contaift 

 with the fi/h, 183. 



Tradition, Ind'an, relative to the fafcina- 



ting power of ferpents, 30T 

 Training pugilifts, Jcckics, horfes, ^c. 

 309 



Tranfit inflrument, eafy and corrciS me* 



thod of verifying the portion of, 53 • 



** Traveller, a," 'letter from, concerning 



a library eftablifhed at Aberde-rn, 203 

 Trees, method of tranfporting to great 



diftances, 48 

 Trie!, M. his chart, 220 

 Troelhstte, (in Sweden) account of Its 



catarafts and canal, 39 

 Trudaine, M. 223 



Turf, carbonifed, 36. — Has no unplea- 

 fant odour, 37. — Yields more heat than 

 wood charcoal, 38 

 Turin Imperial Academy of Sciences, me- 

 moirs of, 369 

 Turkifli almanack, 274 

 Turkiih edia in favour of fcience, 9a 

 Turnips, method of ftackuig, to preferve 

 them in winter, 26S 



V, 



Veau dc Launi, M. on the porcelain, ef 

 Reaumur, 439. 



Valmont de Bonare's diftionary, 144 



Varniih of Genoa, for glazing cups, re- 

 ceipt for making, 327 



Vauquelin, M. on the phenomena, &c. 

 of animal matter, when afted upon by 

 nitric acid, 340. — His analyfis of gu- 

 ano, or natural manure of the coaft of 

 Peru, 323 



Vegetables, diforders of, prize quefliiom 

 on, 185 



Ukraine, efl:ablifhments In, for natural 



philofophy, 275 

 Uran- glimmer, two fpecies of, found in 



Cornwall, analyfed, 257 

 Utrel's ftatue of Louis XIV. 129 



W. 



Walter's anatomical cabinet, purchafed fey 

 the king of Pruflia, 91 



WaUire 



