I N D E X. 
37 ^ 
Man, furprifingly recovered from a fever, p. 1S9. 
Map of the Voigt, p.214. 
Marbles and precious (tones, probably the produce of 
volcanos, p. 12. 
Mars , when and how its menftrual parallax is to be ob- 
ferved, p. 162. 
Maryland, limits between that province and Pennfyl- 
vania fettled by MetTicurs Mafon and Dixon, p. 270. 
Mojkelyne , Rev. Mr. his introduction to two papers of 
Mr. Smeaton, p. 154, 155. Communication of agro- 
nomical oblervations made at Greenwich in 1762, 1763, 
and 1764, p. 20i, Introduction to the account of the 
meafure of a degree in Pennfylvania, p. 270. His de- 
duction of the length of the degree from the obferva- 
tions of Meflieurs Mafon and Dixon, p. 323. Ob- 
ferves the tranfit of Venus, 1769, p. 355. 
Mafon , Mr. employed to fettle the limits between Mary- 
land and Pennfylvania, p. 270. Meafures a degree of 
latitude in that province, p. 274. Agronomical ob- 
fervations, p. 326. 
Mayer, Father, his agronomical oblervations at Swetzin- 
.gen, p. 345. 
Menjlrual parallax of the fun, what it is, p, 157. How 
to be determined from folar oblervations, p. 158, 149. 
Its quantity, p. 160. Mud be more accurately de- 
duced from the menltrual parallaxes of Mars and Ve- 
nus, p. 162. The properelt time for obferving that of 
Mars, p. 163, 164. And of Venus, p. 165. May 
be determined within a 24th part of the whole, p. j 68, 
1 69. 
Mercury, its tranfit over the fun, in 1743, obfrved at 
Naples, p. 1 99. 
Mefenteric glands, are not to be found in birds, p. 221. 
Nor in turtles, p. 223. 
Meteorological observations, made at Bridgewater, for iy 6 y, 
p. 87, 88. At Mountfbay in Cornwall, p, 89. At 
Plymouth, p. 136. 
Method 
