26 Index. 



Ridge, Warm Spring and Alleghany, Vol. IV. p. 216 — otlier oblerva- 



tions thereon by Mr JefFerlbn, 222. 

 Mud-Inguanu. See higuana. 

 MMcnhurgh (Henry) his Index flors Lancaftrienfis, Vol. III. p. 157 — his 



Supplementum indicls flors Lancaft. Vol. IV. p. 235. 

 Mulatto boy, with a pyed fkin. Vol. II. p. 392. 

 Mulberry tree (native) the leaves of it unpleafant to the native filk-worm, 



Vol. I. p. 253. 

 Muriatic and fulphuric acids, of the folution of iron in, Vol. IV. p. 457. 

 Miijic, a new notation of, Vol. III. p. 139. 

 MuJkiKgiim river, defcription of ancient remains of art there. Vol. III. p. 



214. 



N 



Naked-bear, account of, Vol, IV. p. 260. 



Names of the officers and members of the Amer. Philof. Soc. Vol. I. p. 

 xii. — Vol. II. p. xxiii. — Vol. III. p. xxviii. — Vol. IV. p. xiv. 



Natchez,, obfervations for determining the lat. and Ion- of die town of, Vol. 

 IV. p. 447. 



Nancarroiv (John) his calculations relating to grift and faw-mills, for deter- 

 mining the quantity of water neceifary to produce tlie defired efFeft, 

 when the head and fall are given in order to afcertain the dimenfions of 

 a new-invented fteam engine, intended to give motion to water-wheels 

 in places where there is no fall, and but a very fmall ftream or fpring. 

 Vol. IV. p. 348. 



Natural hijlory, method for preferving fubje<5ts of, Vol. I. p. 244. 

 enquiries in. Vol. III. p. xv. 



meado'ws, fome account of. Vol. III. p. 219. 



Naval Jlores, combination between Ruffia and Sweden to raife tlieir price. 



Vol. I. pref. p. xiv. 

 Navigation, improvements in. Vol. I. p. 289, 293. 

 inland, propofed improvements in. Vol. I. p. 293 — Vol. IV. p. 



299. 

 Negro girl, with a mottled fkin. Vol. II. p. 392. 

 Negroes, their dark hue afcribed to the leprofy, Vol. IV. p. 289 — curious 



eifeds produced by their marrying with white women, 294 — their fkin 



turned white, 295 — propofal to excite among them a fimilar change of 



colour by artificial means, 297. 

 Nenvcajlle court-houfe (Delaware) its diftance from Philadelphia, Vol. I. p. 



93, 96. 

 New-England, population of. Vol. III. p. 43. 

 Newfoundland banii, fuperior degree of cold in tlie water there, Vol, III. p. 



93. '94: 

 Nei\}-Jerfey, its population. Vol. III. p. 35. 

 Niagara, account of an earthy fubftance there, called tlie fpray of the falls 



— with remarks on tlie catarad. Vol. III. p. 17 — EUicott's defcription 



of the fame, Vol. IV. p. 227. 



Nicola 



