INDEX. 
quantity of matter, to that of the earth how exa&Iy 
found, 33. Remarks upon this theory, 34. The ratio of 
the force of gravity to the earths attractive power over 
the moon, 35 — Her force in raifing tides, compared with 
the like power of the fun, 36. — Her equatorial diameter 
as feen in the fun during aneclipfe, 143. Her diameter 
taken during a folar edipfe, by the College of Jefuits at 
Rome, 256. Her diameter taken when not in con- 
junction with the fun, 257. A rule for nearly finding 
her diftance from a zodiacal ffar, 274. How the Lon- 
gitude is to be found out by her at Sea, 329. How 
her parallax is to be alcertained in a fixed obfervatory, 
363. How her horary parallax is to be found, 371. 
. Eclipfes of obferved, 107 117. 161. 369. 
Morris , Michael, M. D. his obfervations upon different 
extracts of hemlock, p. 172. 
Mummy , an account of one infpeCted at London, p. r. 
How much injured by time, 3. Second covering of 
dcfcribed, 5. Its filliting, 6. Its thorax, 7. Its 
power of preserving roots, 8. Its cavities how filled 
up, 11. The principal matter ufed, and what, 12. 
How different in different mummies, 14. 
Murdoch , Mr. D. D. and F. R. S. his letter concerning 
the moon’s diftance and parallax, p. 29. 
N. 
Nahathi , a Phoenician word, meaning of, p. 420. 
Needle , Magnetic. See Declination. 
Nerves , their ufes how unknown, p. 183. See Gang- 
lions. 
Nervous^ diforders. See Ailments Nervous. 
Newfoundland , fiery metors feen there, p. 19. An ac- 
count of the late tranfic of Venus oblerved there, by 
Mr. Wenthorpe, p. 279. See Venus , IVenthorpe. 
Newton , Sir Ifaac, his method of inveftigating the law of 
gravitation, p. 29. 
1 Oaks % 
