tLECTKO-MKTALLUBOY.] 



INDEX TO VOL. I. 



1223 



Intensity of the voltaic current, 187. 

 Iron and other conductors, 177. 

 Iron batteries, 190. 

 Iron, cast, batteries, 190. 



JAR, Leyden, 178. 

 KITE, electrical, 183. 



LEVDEN jar, a simple, 180. 



Leyden jar and battery, 178. 



Leyden jar, to charge a, by the electro- 



phorus, 180. 



Lightning, accidents from, 184. 

 Lightning, cause of, 183. 

 Lightning-conductors, 184. 

 Lime-light, 194. 

 Luminous effects of electricity, 181, 191. 



MACHINES, electrical, 170. 

 Management of electrical machines, 171. 

 Management of voltaic batteries, 187. 

 Mechanical effects of electricity, 181, et teg. 

 Melting of steel wire, 182. 

 Mesmerism, 197. 

 Minerals, production of, 196. 



NEGATIVE and positive electricity, 177. 

 Negative and positive plates, 186. 

 Nerves and muscles, electriccurrenUio, 185. 

 Nubili's rings, 196. 



PASLEY'S experiments, 193. 

 Physiological effects of electricity, 184. 

 Physiological effects of voltaic electricity, 

 196. 



ACETATE of zinc, how obtained, 201. 

 Acid and basic affinities, 205. 

 Acierage process of Joubert, 239. 

 Adhesive depositions, 229. 

 Adhesive deposits, 216, 229. 

 Adhesive liquids, 216. 

 Affinities, chemical, of metals, 204. 

 Alloy solutions, 217. 

 Alternation of chemical affinities, 206. 

 Alternations of the electric circuit, 208. 

 Amalgamation of zinc, 215. 

 Anions denned, 209. 

 Anodes denned, 209. 

 Antimony easily deposited, 219. 

 Antimony solutions, 218. 

 Applications of copper deposition, 233. 

 Arrangement of the depositing vat, 215. 

 Atomic weights of elements, 211. 



BASIC affinities of acids and metals, 205. 

 Batteries, management of, 232. 

 Batteries, various voltaic, 186, 214. 

 Battery cells, 214. 

 Battery liquids, 2 1 6. 

 Battery power, to regulate, 230. 

 Becquerel's gilding liquid, 228. 

 Bichloride of platinum in solution coats 



platinum in contact with zinc, 201. 

 Binary theory of electrolysis, 212. 

 Bismuth salts, 219. 

 Bismuth solutions, 219. 

 Blacklead as a conductor, 216. 

 Blackleading the mould, 230. 

 Boilers and furnaces, 213. 

 Brandeley's silvering process, 223. 

 Brassing processes and solutions, 222. 

 Briant's solution for gilding, 228. 

 Bright silvering solution, 225, 

 Bright solution of silver, management of, 



235. 

 Brunel'i formula for brassing solutions, 



222. 



Pile, the voltaic, 188. 



Plate-machine, 170. 



Plates of voltaic batteries, 1S6. 



Pointed bodies, electrical effects of, 175. 



Poles of a battery, 194. 



Positive and negative electricity, 177. 



Positive and negative plates, 186. 



Power of voltaic batteries, 187, 190. 



QUANTITY of the voltaic current, 187. 



REPULSION, electrical, 170, 175. 



Resinous electricity, 178. 



Russian voltaic infernal machines, 193. 



SALTS, neutral decomposition of, 195. 



Shock, the electrical, 184, 196. 



Silurus electricus, the, 185. 



Simmonds* electrical machine, 171. 



Single electrical theory, 178. 



Smee's battery, 190. 



Spark, electric, various eiperiments with, 



174. 



Spark in gases, 174. 

 Spark in vacuo, 173. 

 Spark, the electric, 173. 

 Steam, electricity from, 172. 



THEORIES, electrical, 177. 

 Thermo-electricity, 241. 

 Thermo-electric batteries, 241, 242. 

 Thermo-electric currents, 241, 242. 

 Thunder, cause of, 184. 

 Torpedo, the, 185. 



Trees, general electrical conducting power 

 of, 184. 



CADMIUM solutions, 220. 



Cast-iron and zinc articles, to prepare, 229. 



Cathodes defined, 209. 



Cations defined, 209. 



Cells, battery, 215. 



Cells, porous, 215. 



Chemical affinities of metals, 204. 



Chemical affinity of metals and liquids, 



204. 



Chemical affinity, difference of, 204. 

 Chemical character of cyanide of silver, 



226. 



Chemical conditions of deposition, 203. 

 Chloride of antimony coats a piece of 



antimony in contact with zinc, 200. 

 Chloride of antimony coats a piece of 



platinum in contact with tin, 200. 

 Chloride of bismuth coats antimony, 



201. 

 Chloride of bismuth coats brass in contact 



with zinc, copper in contact with tin, and 



German silver in contact with iron, 200. 

 Chloride of gold, 226. 

 Chloride of bismuth in a solution of hydro- 

 chlorate of bismuth, bismuth is deposited 



on several metals, 200. 

 Chloride of nickel and ammonia coats 



copper, in contact with zinc, with nickel, 



221. 



Chloride of zinc, 201. 

 Circulation of chemical affinities, 206. 

 Cloth, to copper, 234. 

 Cobalt solutions, 221. 

 Compound deposition, 203. 

 Conditions of deposition, 203, 210. 

 Conducting, to render moulds, 230. 

 Conductivity, electrical, 209. 

 Connecting surfaces must be clean, 233. 

 Connecting wires, 212, 216. 

 Copper, and platinised silver for batteries, 



215. 

 Copper, immersed in dilute sulphuric acid, 



UNIVERSAL discharger, 180. 



VACUO, spark in, 173. 



Vitreous electricity, 178. 



Voltaic batteries, 186. 



Voltaic batteries, negative and positive 



plates of, 186. 



Voltaic batteries, theories of, 186. 

 Voltaic battery, Bunsen's, 189. 

 Voltaic battery, Callan's, 190. 

 Voltaic battery, calorific effects of the, 



192. 



Voltaic battery, carbon, 189. 

 Voltaic battery, cast-iron, 190. 

 Voltaic battery, chemical effects of the, 193. 

 Voltaic battery, Darnell's, 188. 

 Voltaic battery, gas, 191. 

 Voltaic battery, Grove's, 189. 

 Voltaic battery, luminous effects of the, 



191. 



Voltaic battery, simple, 186. 

 Voltaic battery, Smee's, 190. 

 Voltaic battery, Wollaston's, 188. 

 Voltaic current, direction of the, 186. 

 Voltaic electricity, 186. 

 Voltaic electricity, medical uses of, 196. 

 Voltaic electricity, physiological effects of, 



196. 

 Voltaic pile, the, 188. 



WATER, decomposition of, 194. 

 Water, electricity from, 172. 

 Winter's electrical machine, 171. 

 Wollaston's battery, 188. 

 Wylde's modification, of Grove'* battery, 

 189. 



ELECTRO-METALLURGY. 



and silver in sulphate solutluu, placed in 

 contact, the copper dissolves, and the 

 silver is coated with copper, 199. 



Copper immersed in sulphate solution 

 and dilute sulphuric acid, that part im- 

 mersed in the sulphate solution will be 

 coated with copper, 198. 



Copper-plates, to etch, 235. 



Copper salts, 221. 



Copper solutions, 222. 



Copper solutions, management of, 233. 



Copper strongly acted on by nitric acid, 

 204. 



Coppering cloth, 234. 



Copying models, flowers, &c., 234. 



Copying type, &c., 234. 



Copying woodcuts, kc., 233. 



Current affinity, 206. 



Cyanide of gold, 227. 



Cyanide of gold by chemical process, 227. 



Cyanide of potassium, 225, 226. 



Cyanide of silver solution, 224, 226. 



DAGCERREOTYPES copied by deposition, 



234. 



Daniell's battery, 214. 

 Decomposition, electrical, 209. 

 Definite electro-chemical action, 211. 

 Deposit, quality, quantity, spread of, &c. t 



231. 



Depositing liquids, effect of light on, 233. 

 Depositing liquids, 217, 218. 

 Depositing liquid, to test and select, 217. 

 Depositing solutions, 217. 

 Depositing vessels and vats, 215. 

 Deposition by magnet and coil, 202. 

 Deposition by one metal and one liquid, 



199. 

 Deposition by one metal and two liquids, 



201. 

 Deposition by two metals and one liquid, 



200. 



