Volume 1

An introduction to the study of chemical philosophy ... a view of the forces which concur to the production of chemical phenomena / [J. Frederic Daniell].

John Frederic Daniell

Date:: 1839

Credit: An introduction to the study of chemical philosophy ... a view of the forces which concur to the production of chemical phenomena / [J. Frederic Daniell]. Source: Wellcome Collection.

581/600 page 559

$Potassium, 282 apparatus for its evolution, 282 bromide of, 356 combustion of, in oxygen, 269, 271 decomposition of water by, 276 selenuret of, 374 sulphuret of, 366 PoviILLEt, on electrical conducting power of solutions, 464 on thermo-electricity, 471 Power of voltaic batteries, how sustained, 438 Powers of nature, 1 Precipitated copper, diffusion of, 424 platinum, 391 Precipitation, 67 Pressure, 9 of atmosphere upon the human body, 35 —— of fluids, 41 of sand, 43 PRIESTLEY discovers oxygen, 269 — protoxide of nitrogen, 292 Primary coils, 495 and secondary character of decom- positions by electro-chemical action, 454 Primitive form of calcareous spar, 74 — of crystals, 71 — — fluor spar, 76, 80 Prism, six-sided, formed of oblate sphe- roidical particles, 83 Prismatic colours, rotating wheel of, 159 spectrum, colours of the, 158, 166 —— — refrangibility of the rays of, 158 system of crystals, 85 Prisms, 157 hollow, filled with different liquids, 188 Progressive dilatation of solids by heat, 101 specific heat, 119 Projectile forces, 10 Protective influence of metals, extent of, 42] ef seq. Protectors for copper sheathing of ships, 422 Proto-carburet of nitrogen, 335 Proto-chloride of carbon, 355 Protoxide of nitrogen, 290 Protoxides, action of muriatic acid upon, 347 Proximate principles, 302 Prussian blue, 333 Prussic acid, 336 Pure zinc, action of diluted sulphuric acid upon, 415 Pyramidal system of crystals, 85 Pyrometers, 97 Pyrometric scales, 100 559 Pyrophorie state of metals, 389 Pyrophosphoric acid, 380 Pyroxilic spirit, 330 QuADRANT electrometer, 225 Quadri-hydro carbon, 328 —- forms a compound with chlorine, 355 Qualitative analysis of the classical ele- ments, 265 Quantitative relations of the components of the classical elements, 285 Quicksilver, action of, upon square bars of tin, 78 RapianT heat, 145, 180 —— — decreases as the square of the distance from the source of the rays, 161 : —— — mirrors for experiments on, 181 —— — passage of through translucent substances, 189 —— — separated from light, 195 — true glass of, 192 Radiation of cast and polished silver, 184 of cold, 186 of heat, 145, 180 —— — — by polished and cast metal surfaces, 183 —— — — in vacuo, 187 ——- — — in nature, importance of, 185 of light, 151 Radiating powers of bodies for heat, 183 Radicals, meaning of the term, 342 Radius of the earth, 20 Rate of evaporation, 134 Ratio of scales of thermometers to each other, 95 Ray of light, 149 Rays of heat, 180, 193 — pencil of, 149 — refrangibility of, in the spectrum, 158 — solar, examined by the prism, 157, 188 REAUMUR’s thermometer, 94 Reduction of metallic salts by current affinity, 418 — of oxides, 282 Reflection of light, 151 — polarization by, 171, 173 Refraction, double, of Iceland spar, 168 — index of, determined, 155 — of heat, 188 —-~ of light, 151 Refractive powers of solids, liquids, gases, and vapours, 156 Refrangibility of the rays of the spec- trum, 158 Refrigeration increases the power of a magnet, 263$