INDEX. 



145 



Nitrate of silver, economical mode of preparing, ix. 405 



■ on the use of, in epilepsy, xii, 189 



■ experiments on the compound of cyanogen with, xix. 159 



(native), of soda, xiii. 436 



Nitre of plants, observations on, ix. 422 



Nitric-acid (liquid), experiments to determine the constitution of, 

 and the law of progression followed in its densities at succes- 

 sive terms of dilution, iv. 291 



experimental researches on, with carbonate of lime, 



vi. 250. With sub-carbonate of soda, 252. With sub-carbonate 

 of potash, 254. Observations on the composition of, vii. 171 



and charcoal, action of, xviii. 180 



• — ether, on the preparation of, viii. 369 



Nitrogen of sulphureous mineral waters, observations on, xii. 409 



action of, in the process of respiration, xv. 386 



— - means of testing the presence of minute portions of, in 



certain cases, xix. 16 



Nitro-muriatic acid, observations on, i. 67. Effects of in syphi- 

 litic affections, 205. How administered, 208 



Nitrous oxide, effects of, vi. 360 



Nixon (Dr.) on the effects of electricity in[aplionia, ii. 204 



NoBiLi (Mr.) on a new galvanometer, xx. 170 



Noehden (Dr.), observations of, on the meteoric stones in the im- 

 perial museum at Vienna, ii. 314 



Nomenclature of mineralogy, strictures on, iv. 69 ; and on that 

 of chemistry, 389. Of pharmacy, xiv. 364 



Nordhausen, researches on the sulphuric acid of, xviii. 145 



North Pole, remarks on the hazard of attempting to reach it, i. 

 223. North-East passage, probability of, iv. 378. Notice of 

 a new voyage of discovery to, ix. 430. Rewards for discoveries 

 in the, xii. 432 



Northern Expedition, instructions for the use of the instruments 

 intended for, v. 202 



Norton's Ordinale of Alchymy^ extract from, ix. 236 



Nubia, notice of Mr. Belzoni's operations and discoveries in, vii. 

 344 



h 



