INDEX. 
Grifchoiv ( Augujline Nathaniel) Obf. of two Parafelenes , 
Oft. 20, 1747. N. S. at Paris, with an Account of the 
Obf. of the Eclipfe ot the Sun , July 14, 1748. O. S. as 
taken at Berlin , n. 485), p. 524. 
Gums , their fpecific Gravity, 488, p. 460. 
Gunnery , the Motion of projectile, by V/&0. Simpfon , #. 
486, p. 137. 
Gunter (Edmund) of the fpecific Weights of Metals, 
». 488, p. 423. 
H. 
Hales (R.ev. Stephen ) D. D. 1'ome eleCtrical Experiments, 
#. 488, p. 4 op. His Ventilators, p. 410. a Pro- 
polal to check the Progrefs of Fires, n. 487, p. Tjp. 
Hair of Animals fparkling in the dark, by Mr. Ccoke, 
n. 488, p. 394. 
Harris ( John) D. D. of fpecific Gravities, #.488, p. 428. 
Hartfoeker fir ft difeover’d the fpermatic Animals, n. 490, 
p. 616. 
HaJJel ( Richard ) Efq; of a Piece of Lath thruft into a 
Man’s Eye, n. 489, p. 520. 
Hauksbec (Mr. Francis) of fpecific Gravities, n. 488, 
P- 43 °. 
Haymcuth , Eclipfe of the Sun, July 14, 1748. obf. near 
it, n. 490, p. 592. 
Hearing oiFifh , of it, by Mr. Ardtron , n. 48 < 5 , p. 149. 
Hearing of Men under Water, by Mr. Ar heron , n. 48 < 5 , 
P* L 54 * 
Heat , great at Charles-tmn , to i 2<5 Deg. n. 487, p. 338. 
Height of Mountains taken by a Barometer, ». 486, p. 255. 
/#// (Mr. pp/D/) Obf. on the Semen of a Dog, ?/. 490, 
p. 632. 
Hodgfon (Mr. James) of the Immerfions and Emerfions 
ol Jupiter s Satellites for 1750, n. 48 7, p. 373. 
Homberg (M.) of the Expanfion and Contraction of Bo- 
dies, n. 488, p. 4215. 
— — ol the Proportion of the fpecific Weights of 
certain Fluids in the Winter and Summer, n. 488, 
p. 481. 
Hu sham 
