522 INDEX. 
Mountains, method of finding their height barometrical- 
] y, p. 153. 
Mount ayne, Mr. William, Letter from him, giving an 
account of the variations of the Needle, obferved 
aboard his Majefty’s fhip the Montagu, by Mr. David 
Rofs, p. 216. 
Mud-Inguana , the Indian name of an amphibious Bipes, 
p. 1S9. 
Mur ana ^ name of afpeciesof Animals, p. 189. 
Murdoch , Reverend Mr. a Journal of the weather com- 
municated by him, p. 291. 
Mufca , name of a conltellation, near which a comet was 
feen, p. 60. 
Mufeum at Oxford, a cake of native Tin lodged there, 
p. 36. tee Tin. 
Britijh , two large Egyptian ftones, brought from 
Alexandria, lodged in the Court Yard, p. 287. 
N. 
Nantes , a fpecies of animals that has both lungs and 
gills, p. 191. 
Naples , account of fome Microfcope Glafles made by Fa- 
ther Di Torre of that place, p. 67. fee Di Terre. 
Natural Hiltory, of Birds, by Mr. Edwards, p. 20 7. 
Needle , magnetic, obfervations of fome variations made 
by Mr. David Rofs, Surgeon on board the Montagu, 
p. 218. — a remarkable circumftance relating thereto,, 
p. 219. — table of variations, p. 220. 
O. 
Obfervations of an Eclipfe of the Sun, Auguft 16, 1765. 
p. 1. p. 30. p. 262. — Auguft 5, 1766. p. 259. p. 2 68. 
— of two Comets, p. 57. — of the Tranfit of Venus, p. 
72. — of the variations of the needle, p. 220. — of the 
Eclipfes of the firft Satellite of Jupiter, p. 285. 
0//, ProfelTor, account of a coin formerly in his hands 
