24 INDEX. 



Mfgalonyx, or great claw. See Bones. 



Megatherium of Paraguay, JefFerfon's obfervations on its fkclclon, Vol. IV. 



p. 259. 

 Memlcrs of the A. P. S. a lift of,— Vol. I. p. xii.— Vol. II. p. xxiv.— Vol. 



III. p. xxviii. — Vol. IV. p. xiv. 



Mefjioir on the difcovery of America, Vol. II. p. 263. 



concerning the fafcinating fiiculty which has been afcribed to the 



rattlc-fnake and other American ferpents, Vol. IV. p. 74. 

 on the fubjeift of a new plant, growing near Philadelphia, Vol. IV. 



P- I73- 



on a new fpecics of firen, Vol. IV. p. 277. 



on the difcovery of the remains of a new non-defcript quadruped, Vol. 



IV. p. 246 — with obfervations on the megatherium of Paraguay, 259. 

 — on the extraneous folfils denominated mammoth bones ; principally 



defigned to fliew, that they are the remains of more than one I'pecies 

 of non-defcript animal. Vol. IV. p. 510. 



" — on the diltillation of perfimons, Vol. I. p. 231. 



■ on amphibia. Vol. IV. p. 362. 



on the fand hills of Cape Henry (V.) Vol. IV. p. 439 — fupplement 



thereto, 444. 



Mercury precipitated from oxygen gas, Vol. IV. p. \\G. 



Mercury, his diftance from the fun, Vol. I. p. 62 — account of his tranfit 

 over the fun in 1769, p. 82, appendix 50 — Vol. II. p. 249 — in 1782, p. 

 260. 



I — affords with Venus's the befl: opportunity for deter- 

 mining the longitude, Vol. I. p. 82 — his horary movement, 86 

 — projc(ftion of his tranfit, 88 — his diameter afcertained, appendix, 

 52 — a remarkable period i.n this planet's motion, appendix 53 — when 

 firft obferved on the fun's diic, ib. 



Meridian mark, a new method of placing it, Vol. II. p. 181 . 



, line, a new way to find the true one, Vol. II. p. 251. 



MeJJier's account of the comet of 1770, as it appeared in France, Vol. I. 

 appendix p. 41 . 



Metallic conduSors of lightning, a propofed addition to, Vol. III. p. 125 — an 

 improvement on, 321. 



Metals, conftitution of. Vol. IV. p. 452. 



Meteor, or falling ftar, defcribed. Vol. II. p. 174, 175. 



Meteorological obfervations made at Philadelphia in 1 7 70-1 , Vol I. appendix p. 70 

 — at Bradford, (N. England) in 1772, Vol. II. p. 122 — at WiUiamf- 

 burgh (Virginia) in 1777 and part of 1778, p. 141 — at various places 

 between Richmond and the Alleghany mountains in Bottetourt, in 1791, 

 Vol. IV. 219 — at fea and on ihore, 272 — at fort Wallnngton (Cincin- 

 nati) 329. 



enquiries. Vol. III. p. xxv. 



Mexican Indians, or Aztecas, fome account of. Vol. IV. p. 183, 199, 204, 

 210, 213. 



Mexico, inftances of great longevity in, Vol. III. p. 50. 



Mica 



