22 I N D 



M 



Machine for regulating the heat of furnaces and temperature of the air, Vol, 

 I. p. 286 — for pumping vefTels at fea, without manuallabour 289 — for 

 cutting files 300. 



for mealuring a fhip's way, invented and defcribed. Vol. III. p. 



239- 

 for faving perfons from the upper ftories of a houfe on fire. Vol. IV- 



p. 14^. 



M.idiigafcar Jheep dsicxihed, Vol. IV. p. 149. 



Maiz, [zea] tlie only grain found by the firft fettlers in N. America, Vol, I. 

 pref. p. iii. 



M'Cau/lin (Rob.) his account of an earthy fubftance at Niagara ; with re- 

 marks on the cataraft tliere, Vol. III. p. 17. 



Madeira, proportion of deaths in. Vol. III. p. 41, 59 — encreaCng popula- 

 tion of, 43. 



Madifon (Rev. J.) his letter to D. Rittenhoiife containing obfervations on 

 the climate atWilliamfburgh, Virginia, Vol. II. p. 141 — his experiments 

 and obfervations on the fweet-fprings of Virginia, 197 — his obfervations 

 on a lunar eclipfe and the tranfit of mercury over the fun, Nov. 1789, 

 Vol. III. p. 150 — his experiments on magnetifm. Vol. IV. p. 323. 



Magellan (I. H. de) his donation to the American Philofophical Society, Vol. 



II. p. xix. 



Magellanic prize, how and in what cafes to be awarded. Vol, II. p, xix — VoL 



III. p. 336 — on whom beftowed, p. 262, 321, 331. VoL IV. p. 519» 

 Majnf//V variation at the town of Erie in 1795, Vol. IV. p. 232, 

 tieedle (umverfal) Vol. I. p. 54. 



Mai'«f//fti/ obfervations much wanted in America, Vol. I. p. 254. 



made at Cambridge (Malfachufetts) Vol. III. p. iij'. 



Afagnetifm, experiments on. Vol. 11. p. 178 — Vol. IV. p. 324 — deftroyed 

 by heat, 180 — produced by friftion of two pieces of fteel againfl each 

 other, ib. — how communicated to a foft fteel ramrod, ib. — curious 

 thoughts on. Vol. III. p. 3. 



and the dieory of die eartli, queries and conje&ires concerning. 



Vol. III. p. 10. 



Magnolia and fpice-wood excellent in fome difeafes. Vol. I. pre/, p. viii. 



Magotty-bay-bean (caffia chamichrifta) an excellent manure, Vol. III. p. 226 

 — botanical defcription of it, 228. 



Mammoth-boner, Buffon's opinion of them, Vol. IV. p. 257 — memoir con- 

 cerning them, 510 — whence their name, ib. — abundant beyond the 

 mountains, and why, 51 1 — a popular opinion concerning the animal re- 

 jefted, ib. — the remains of more dian one fpecies of a huge non-defcript, 

 512 — obfervations as to the probable volume of the mammoth, 511 — 

 arguments againft his now-Lxiftence, 516 — Indian tradition reipe<Sing 

 him, ib. — remarkable appearances at die great-bone-lick in Kentucky,. 

 5 1 7 — conjedures as to his nature and purfuits, ib. 



Mankind, 



