9J 



VOLUMES XXXI-XL. 



513 



Chejiistrt — 



Nitrates in plants, ii, 75. 



Nitrogen, atmospheric, fixation of by 

 soils, i, 391. 



density of liquid, iv, 224. 

 dioxide, preparing, i, 151 ; and 

 tetroxide, density of, at —100°, iv, 

 395. 



peroxide, molecular weight, Ram- 

 say, vi, 1 ?>0. 



in uraninite, Hillebrand, xl, 384. 



Nitrosyl chloride, emission-spectrum, 

 Magnanini, ix, 518. 



Nitryl chloride, existence of, i, 469. 



Oil, paraffin, alkaloid-like bases in, iv, 

 398. 



Organic compounds, absorption spec- 

 tra and composition, vii. 233. 



Osmium, atomic mass, vii, 74. 



Oxygen carriers, Lothar Meyer, v, 250 ; 

 percentage of, in air, Hempel, v, 76. 

 continuous production of, i, 39! : 

 density of liquid, iv, 224; dissolved 

 in water, Thresh, ix, 398 ; evolution 

 of, iv, 225; spectrum, Janssen, vi, 

 385; valence, Heyes,vi, 385; oxygen, 

 and nitrogen, combination in gaseous 

 explosions, vii, 225; oxygen, nitro- 

 gen and hydrogen, compressibility, 

 vii. 225. 



Ozone, boiling point, iv, 63, viii, 326; 

 production of, from oxygen, iv, 394 ; 

 ozone and formation of nitrates in 

 combustion, Ilosvay. xl, 251. 



Periodic law, Mendeleeff, ix, 147. 



Permanganates, ammonico-cobaltic, iv. 

 482. 



Phenol constituents of blast furnace 

 tar, i, 220. 



Phenylthiocarbamide, use in optical 

 work, Madan, vi, 388. 



Phosphoric chloride, 'iii, 422. 



Phosphorus, action of light on, Pecl- 

 ler, xl, 492 ; phosphorus, arsenic and 

 antimony at white heat, iv, 396 ; 

 phosphorus in Iron Mt., Michigan. 

 Browne, vii, 299. 



pentafluoride, iii, 305. 

 tetroxide, iii, 306. 



Platinic fluoride, preparation, Moissan, 

 ix, 315. 



Potassium chlorate, decomposition, iii, 

 508. 



chloride, decomposition by heat, 

 McLeod, viii, 158. 



hydroxide, new hydrates of, iv, 64. 

 and sodium, combination with 

 ammonia, Joannis, ix, 315. 



wave-length of red lines of, Des- 

 landres, v, 413; vi, 467. 



2 



Chemistry — 



Raffmose in barley, i, 220. 



Raoult's molecular depression of the 

 freezing point, vii, 406. 



Regnault's weights of gases,' correc- 

 tion of, vii, 495. 



Scale, analysis of crystalline, ii, 318. 



Selenic acid, Cameron and Macallan, 

 xl, 494. 



Selenium chlorides, Chabrie, ix, 231. 



Seminose and mannose, identity of, 

 Fischer and Hirschberger, viii, 159. 



Silicates, natural, constitution of, Clark 

 and Schneider, xl, 303, 405, 452. 



Silicium phosphate, hydrated, iii, 306. 



Silicon, atomic weight of, iv, 397; in- 

 fluence on properties of iron and 

 steel, iii, 509. 



Silico-carbonate, artificial, iii, 80. 



Silver, allotropic forms of, Lea, vii, 

 4.76; viii, 47, 129, 237, 241, 476. 



chloride, bromide, iodide, Lea, iii, 

 349 ; protosalts of, Lea, iii, 480, 

 489 ; chloride, combinations of, Lea, 

 iv, 384 ; silver chloride, darkened, 

 not an oxy-chloride, Lea, viii, 356. 

 nitrate, heat produced by reaction 

 on solutions of metallic chlorides, ii, 

 319. 



silicate, formation, Hawkins, ix, 

 311. 



Sodium carbonate, conversion into 

 hydrate by lime, i, 219; made by 

 electrolysis, ix, 232. 



Solids, chemical action between, Hal- 

 lock, vii, 402. 



Solubility and fusibility, Carnelley and 

 Thomson, vi, 383. 



Solution, character of, iv, 483. 



Solutions, concentration of, by gravity, 

 Gouy and Chaperon, v. 75; nature 

 of, Pickering, ix, 397, xl, 163. 



Stalagrnometer, Traube, v, 248. 



Stannic acid, new, vii, 408. 



Sugar yielded by hesperidin and nar- 

 ingin, iv, 65. 



Sulphur, phosphorus, bromine and 

 iodine in solution, molecular mass, 

 vii, 74. 



volatility of, i, 308. 



Sulphuric acid, with water, magnetic 

 rotation of, ii, 477; vapor tension, 

 Perkins, xl, 301. 



Sulphurous oxide, evolution of, iv, 225. 



Synthesis of the glucoses and mannite, 

 vii, 493. 



Tartrate solutions, circular polariza- 

 tion of, Long, viii, 264; xl, 275. 



Tellurium, antimony and copper, new 

 element in, Griinwald, xl, 250. 



