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Page 20
... sulphate of baryta , which occurs in nature as a mineral , and is called heavy spar or barytine . It is prepared by heating this mineral with charcoal to a dull red heat , or by the process of Margraf , in which the mineral is powdered ...
... sulphate of baryta , which occurs in nature as a mineral , and is called heavy spar or barytine . It is prepared by heating this mineral with charcoal to a dull red heat , or by the process of Margraf , in which the mineral is powdered ...
Page 21
... sulphate of potash , nitre , crystallized carbonate , borate , or sulphate of soda , rock salt , witherite , radiating heavy spar from Bologna , marienglas , fibrous gypsum , alabaster , artificial sulphate of lime , common fluor spar ...
... sulphate of potash , nitre , crystallized carbonate , borate , or sulphate of soda , rock salt , witherite , radiating heavy spar from Bologna , marienglas , fibrous gypsum , alabaster , artificial sulphate of lime , common fluor spar ...
Page 114
... sulphate of quinine in tar- taric acid become curiously self - luminous when the rays passed through blue or , better still , violet glass are allowed to fall upon them . A little sulphur burnt in a jar of oxygen emits rays which render ...
... sulphate of quinine in tar- taric acid become curiously self - luminous when the rays passed through blue or , better still , violet glass are allowed to fall upon them . A little sulphur burnt in a jar of oxygen emits rays which render ...
Page 143
... sulphate of lime , from which plaster of paris can be made by driving off the water of crystalli- zation . This mine- ral , split into thin films , and cut under water , or oil , or turpentine , is laid upon glass with Canada bal- sam ...
... sulphate of lime , from which plaster of paris can be made by driving off the water of crystalli- zation . This mine- ral , split into thin films , and cut under water , or oil , or turpentine , is laid upon glass with Canada bal- sam ...
Page 144
... sulphate of soda , oxalic acid , oxalate of ammonia , sulphate of copper , borax , ferrocyanide of potassium , & c . , may be exhibited in the polariscope . The lovely rings obtained by using uniaxial and biaxial crystals are well shown ...
... sulphate of soda , oxalic acid , oxalate of ammonia , sulphate of copper , borax , ferrocyanide of potassium , & c . , may be exhibited in the polariscope . The lovely rings obtained by using uniaxial and biaxial crystals are well shown ...
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Common terms and phrases
action angle antimony apparatus arrangement Atomic Atomic weight ball battery bismuth body boiling brass called carbon carbonic acid cause charcoal charge chemical chloride circuit coating coil colour condenser conductor connected containing copper crystal cylinder decomposed diameter disc discharge effect electric current electrical machine electro-magnet electroscope engine equal experiments flame fluid force galvanometer gases glass gold gun cotton heat hydrogen inch instrument insulated iron latter length Leyden jar light liquid magnetic mercury metal mirror motion needle negative nitric acid obtained ordinary oxide oxygen paper particles pass phosphorus piece piston placed plate platinum polarized pole position pressure prism produced quantity rays refraction resistance salt screw shown side silver sodium solid solution sound spark specific gravity spectrum steam substance sulphate sulphuric acid surface temperature thermometer tinfoil tion tourmaline tricity tube vapour vessel vibrations voltaic weight whilst wire zinc
Popular passages
Page 428 - Farewell, a long farewell, to all my greatness ! This is the state of man ; to-day he puts forth The tender leaves of hope, to-morrow blossoms, And bears his blushing honours thick upon him : The third day comes a frost, a killing frost ; And,— when he thinks, good easy man, full surely His greatness is a ripening, — nips his root, And then he falls, as I do.
Page 191 - I have seen the wild stone-avalanches of the Alps, which smoke and thunder down the declivities with a vehemence almost sufficient to stun the observer. I have also seen snow-flakes descending so softly as not to hurt the fragile spangles of which they were composed ; yet to produce, from aqueous...
Page 170 - ... the particles move round their own axes, and separate from each other, penetrating in right lines through space. Temperature may be conceived to depend upon the velocities of the vibrations; increase of capacity on the motion being performed in greater space; and the diminution of temperature, during the conversion of solids into fluids or gases, may be explained on the idea of the loss of vibratory motion, in consequence of the revolution of particles round their axes, at the moment when the...
Page 170 - It seems possible to account for all the phenomena of heat, if it be supposed that in solids the particles are in a constant state of vibratory motion, the particles of the hottest bodies moving with the greatest velocity...
Page 205 - If an engine be such that, when it is worked backwards, the physical and mechanical agencies in every part of its motions are all reversed, it produces as much mechanical effect as can be produced by any thermodynamic engine, with the same temperatures of source and refrigerator, from a given quantity of heat.
Page 51 - The eye being necessarily placed at one end, some of the cement which had been pressed through between the plates appeared to be arranged into a regular figure. The symmetry of this figure being very remarkable, Dr B.
Page 348 - There is no substance better fitted, under ordinary circumstances, to be the indicating body in such an instrument than water ; for it is decomposed with facility when rendered a better conductor by the addition of acids or salts; its elements may in numerous...
Page 345 - On the absolute Quantity of Electricity associated with the Particles or Atoms of matter...
Page 346 - THE theory which I believe to be a true expression of the facts of electro-chemical decomposition, and which I have therefore detailed in a former series of these Researches, is so much at variance with those previously advanced, that I find the greatest difficulty in stating results, as I think, correctly, whilst limited to the use of terms which are current with a certain accepted meaning. Of this kind is the term pole, with its prefixes of positive and negative, and the attached ideas of attraction...
Page 52 - B. of giving motion to objects, such as pieces of coloured glass, 8<c. which vere either fixed or placed loosely in a cell at the end of the instrument. When this idea was carried into execution, the kaleidoscope in its simple form was completed.