INDEX. 
M. 
Macclesfield (Earl of) Remarks upon the Solar and Lu- 
nar Years, &c. n. 495, p. 417—434. 
Mackenzie (Mr. Murdock ) of the Tides in Orkney , n. 492, 
p. 149. - v ' ' 
— of Earthquakes at Smyrna, n. 497, p. 700. 
Mairc (Mr. Chrijlopher ) Obf. of the Eelipfe of the Moon, 
Dec. 23, 17493 and that of the Sun, Jan. 8, 1750, n. 
494, p. 321. 
Manna , the Method of gathering it near Naples , n. 495, 
p. 470. 
Mariners Compafs, contrived by Gowin Knight, n. 49 5, 
p. 505. 
propofed by Dr. Knight, improved by 
J. Smeaton , n. 495, p. 513. 
Mark, a Weight, n. 491, p. 6 5. 
Martis £3 Luna Occultatio Pekini, Dec. 6, 1747, n. 494, 
■p. 312. 
Martis & Veneris Con j unci io Pekini, menfe Martio 1748. 
ibid. p. 314. 
Marty n, M. D. (John) of an Aurora Aujlralis, Den at 
Chelfea, Jan. 23, 1749-50. n. 494, p. 319. 
of an Aurora Borealis, Feb. 16, 1749-50, n. 494, 
P- 34 L 
of an Earthquake at Chelfea, Feb. 8, 1749-50,;/. 
497, //. 609. — March % , 1749-50, ib.p.6 30. 
EZra of Penfthania, by Mr. JoZw Bertram, n. 494, 
p. 401. 
Mys*, the E feels of the Mixture of its Farina, n. 493, 
p. 206. 
Meafures of Capacity, of the Englijh, by Mr. Reynardfon, 
n. 491, p. 54. Roman , /£. p. 70. 
dry, n. 491-, p. 65. 
Medals of Pefcennius Niger , Reflections on; n. 495. p.452. 
Meridian of a Place, how to find, ;/. 493, p. 244. 
- — Line or Sum of the Secants, analogous to Loga- 
rithmic Tangents, ;/. 496, p. 559. 
Meteor , an extraordinary, feen in Rutlandjhire, 1749, #. 
493,//. 248. M/w, 
