36 



Skey, ^V. — coutinttid. 



Cyanide-solutions, Rapid Action of Strong, on 

 "Qold superficially, 30, 512. 



Cyaniding Gold, Liberation of Hydrogen in a 

 certain Variation of the Apparatus used for, 

 30, 510. 



Cyanogen, Analogy of, to Oxygen, 7, 379. 



Cyanogen, Free : Further Results showing 

 that it does not dissolve or even attack 

 Cold, 29, 576. 



Cyanogen : the Position it holds in relation to 

 the Simple Radicals, and its Inability to 

 combine directly with Silver or Gold, 29, 

 574. 



Desilvering of Argentiferous Gold, New ^Nlode 

 for Direct, 1, 103 [2nd ed., 47]. 



Earthy Carbonates : Degree of Solubilitv in 

 Pure Water, 10, 452. 



Electricity, Conducting-powcr of Metallic Sul- 

 phides and Oxides for, 4. 311. 



Electro-capillarv Theory, Fallacy of the, 21, 

 363. 



Electro-deposition of Gold u])on the Gold of 

 our Drifts, 30, 498. 



Electro-motive Order of certain Metals in 

 Cyanide of Potassium, 8, 334. 



Electro-motive Power of Gold and Platina in 

 Sulphides, 4, 313. 



Electro -motive Power of Metallic Sulphides, 

 3, 232. 



(ialvanic Circuit or Battery, Capability of 

 certain Sulphides to form Negative Pole of, 

 3, 222. 



Gold, Absorption of Sulphur by, and its Effects 

 in retarding Amalgamation, 3. 216. 



Gold, Alleged Nuclear Action of, 5, 372. 



Gold Nuggets in Drift, Formation of, 5, 377. 



Gold, Oxidation of, in Presence of Air and 

 Water, 25, 381. 



Hot Blast, Application of, to Blow-pipe Pur- 

 poses, 2, 148. 



Hydration of Clay-slate, Claj% and Coal, 

 Evolution of Heat during the, 7, 384. 



Iodine and Bromine, Application of, for De- 

 tection of Gold in Minute Quantities, 2, 156. 



Iodine, Manufacture of. Substitution of Ace- 

 tate for Sulphate of Copper in, 5, 376. 



Karaka Nut, Isolation of the Bitter Substance 

 of, 4, 316. 



Lead, A Periodide and an lodo-carbonate of, 

 13, 388. ^J1 



Lead, Native, Occurrence at Collingwood of, 

 and its Association with Gold, 21, 367. 



Magnesia, Dimorphism of, 13, 389. 



Manganese-oi'es : Examination fo"^' Cobalt, 10, 

 448. 



Mercuro-iodide Test for Detection of Alka- 

 loidal or Albumenous Matters. Modification 

 of the, 9, 553. 



Mineral Oils of N.Z., 6, 252. 



Mineral Waters of N.Z., 10, 423. 



Mode in which Oil acts as a Nucleus in Super- 

 saturated Saline Solutions, 12, 407. 



Osomose [Osmose] as the Cause of the Persist- 

 ent Suspension of Clay in Water, 11, 485. 



Oxidation of Gold and Mereurv by Oxygen in 

 Presence of Water, 8, 339. 



Skev, W. — coiitiituid. 



Oxidation of Mercury in Air and Water, also 



of Iron, in Alkaline Solution, 29. 582. 

 Oxidation of Silver and Platinum bv Oxygen 



in Presence of Water, 8, 332. 

 Oxygenized Graphite and Platinum. Cliemical 



Effects of, 8, 347. 

 Paraffin - deposit at Waiapu, Su])posed, 14, 



397. 

 Petroleum, Hydrocarbons of Benzol Scries in, 



11, 469. 



Photographic Effects produced with Silver 



Salfs : New Theory of the Mode, 14, 403. 

 Platinum, Absorptive Properties of. 3, 221. 

 Platinum, Fusibility of, in the Blov.pipe- 



flame, 2, 155. 

 Potassium-cyanide Solution, Action of, upon 



Gold : Notes on Mr. J. S. Maclaurin"s 



Paper, 28, 708. 

 Precipitate formed by certain Mercuric Salts 



in Presence of Essential Oils, Nature of, 



12, 412. 



Property possessed by Essential (Jils of 

 whitening Precipitate produced by mixing 

 Solution of Moi'curo-iodide and Mercuric 

 Chloride, 11, 470. 



Reduction of certain Metals from their Solu- 

 tions by ]\Ietallic Sulphides, 3, 225. 



Seismograph for indicating or registering 

 Minute Shocks, Electro-magnetic, 4, 330. 



Silica, Absorptive Properties of, and its Direct 

 Hydration by Contact with Water, 2, 151. 



Silver-ore of Richmond Hill, Comj>osit)on of 

 the, 9, 556. 



Simplest Continuous ^lanifoldness of Two 

 Dimensions and of Finite Extent : Notes 

 upon Mr. Frankland's Paper, 13, 100. 



Stinkstone (Anthraco7iite), Nature of, 25, 379. 



Sulpho-cyanide of Potassium, New Process 

 for ilatuifacture of, 4, 330. 



Sulphuretted Hydrogen Gas, (4eneration of, 

 4, 321. 



Sulphur from Carbon bv Voltaic Action, Evo- 

 lution of. 7. 389. 



Suspension of ( 'lay in Water, Cause of, and 

 its Precipitation, 4. 380. 



Tonalinson's Cohesion Figures, Nature and 

 Cause of, 11, 490. 



Torbanite. Formation and Constitution of, 

 7, 387. 



Tutu Plant, Extraction of the Poisonous Prin- 

 ciple of, 2, 153. 



Voltaic Cell, Replacement of Metals in a, 8, 

 343. 



Water, Decomposition of, by Tannic Acid in 

 Conjunction with an Alkali, 30. 509. 



Writing-ink, A I'seful Modification of Com- 

 mon, 9, 557. 



Zinc and Cobalt Salts, AUotropic Form of, 



13, 387. 



Skey, W., and McK.\y, A. 



Minerals. Rare, associated with the Tin-ore 

 of Stewart Island ; with Notes on their 

 Mode of Occurrence, 22, 415. 



Skinner, W. H. 



Marsland Hill, Notes on, 37, 211. 



