[ 877 ] 
Gold, , great quantities found in the kingdom of Thibet, p. 486, 487. 
Good Hope, Cape of, Mr. De la Caille’s barometrical obfervations there, p. 784. 
Gottingen in the Hartz, its height above Hanover determined by barometrical obfervations, 
p. 429, 444—449. 
Gravities. An experiment to determine hydroftatically the fpecific gravities of air 
and quickfilver, with a given temperature and preffure ; and remarks thereon, p. 
^ 57 — 570 . 
' Great River, in the kingdom of Thibet, fome account of it, p. 481, 482. Great quan- 
tities of gold found in its fands, p. 486. 
Greenvoich and Paris, concerning the difference of longitude there, refulting from the 
eclipfes of Jupiter’s firfl fatellites, obferved during the lad ten years ; with a compa- 
rative table of the correfponding obfervations of the firtt fatellite, made in the prin- 
cipal obfervatories, p. 162— 186. 
Groin. An account of a hard fubdance extradled from a woman’s groin, p. 461 — 46.3. 
Caufed by fwallovving a peg of wood fixteen years before, p. 462. n. 
Groot Vaaders Bofch , a wood in the interior part of Africa, a curious fpecies of cuckow 
there, p. 43. See Cuckovo. 
Grovjtb of trees, increafed by wafhing and rubbing, p. 12 — 14. 
H. 
Hadley , Mr. remarks on the defedls in his method of polifhing the fpeculum for reflec- 
ting telefcopes, p. 318—320. A mote perfect method of polifhing and giving a 
corredt parabolic figure to the metal at the fame time, p. 327 — 335, 
Hales , Dr. his advice of wafhing the flems of trees to increafe their growth, put in 
pradlice, p. 12. The defign anfwered, p„ 12—14. Dr. Hale’s calculation of the 
annual evaporation in England, p. 253. 
Halley , Dr. his obfervations on the exhalation of water in London, p. 252. 
Hanover. The heights of Gottingen, Claudhal, Oder-brucke, and Brocken, above 
Hanover, determined by barometrical obfervations, p. 429. 444 — 449, 
Hare s-fkin, a coated phial may be charged with eledlrical (parks from one, fumciently- 
to pierce a hole through a card with its difcharge, p. 396. 
Harris, Mr. an account of him and his two brothers, neither of whom could difiinguifh 
colours, p. 260 — 263. 
Hartz , barometrical obfervations on the depths of mines there, p. 401. See Barometrical 
obfervations. 
Haf ings, Mr. governor of Bengal, grants a peace to the Boutaners, p. 468 ; and enters 
into a treaty of commerce with them, p. 469. Tranflation of the letter he received 
from the Tayfhoo Lama, foliciting for peace, p.489 — 492. 
Heat , a caufe of the evaporation of water, p. 257. 
Heights of mines meafured by the barometer, p* 401 — 449* The fubterraneous geo- 
meter’s method of finding thefe heights, p. 423, 424.. Precepts and tables for cal- 
culating 
