144 



INDEX 



New York historical society, notice of tlie publications of, i. 301 



Newman (Mr. John), on a new blow-pipe, i. 65. On a new mer- 

 curio- pneumatic apparatus, 185 



description of his new machine to measure a ship's way 



by the log-line, ii. 90. Account of experiments made with his 

 blow-pipe, by inflaming a highly- condensed mixture of the 

 gaseous constituents of water, 104. Observation on its singular 

 utility, 124. Account of his improved blow-pipe, 379 



description of a mountain-barometer, with an iron 



cistern, xvi. 277 

 Newry pitch-stone, observations on, xiv. 382 

 Newton (Sir Isaac), table of atmospherical refractions, xviii. 



358. Remarks thereon, 359 

 Nice, geology of the country around, v. 173 

 Nickel, phenomena attending the process of the solution of, i. 29 

 ' process for separating from cobalt, vii. 181 



' process for obtaining pure, viii. 16 1 



— carburet of, xii. 173 



analysis of the ores of, by means of chlorine, xiii. 1 56 



' protoxide of, xv. 151. Deutoxide of, ibid; sulphuret of, 



ibid ; chloride and iodide of, 152 ; and cobalt, amalgamation of, 



by arsenic, xvi. 166 

 experiments on the oxides of, xvii. 140 



NiEBUHR (Baron), notice of ancient MSS. discovered by, x. 201 



Niger (river), conjectures relative to the source of, i. 265. 

 Opinion of Major Rennell concerning its source and termi- 

 nation, ib. Hypothesis of Mr. Maxwell and M. Reichard, 

 266, Of Mr. Hugh Murray and Mr. Jackson, 267. The evi- 

 dence adduced by Ali Bey for the existence of a Mediterranean 

 Sea in the centre of Africa, 267, v. 155. Objections to its 

 supposed identity with the river Zaire, or Congo, v. 157. 



NiMMo (Dr. John), experiments and observations on the chemical 

 composition of the seeds and oil of the Croton Tiglium, xiii. 62. 



Niobe, observations on the original composition of the statues of, 

 and her children, v. 99 



Nitrate of strychnia, vii. 396 



