Researches on Light in Its Chemical Relations: Embracing a Consideration of All the Photographic ProcessesLongman, Brown, Green, and Longmans, 1854 - 396 стор. |
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Сторінка 14
... acid was absorbed by the plant , that under the influence of Light it was decomposed , and that its oxygen was again li- berated . Upon the publication of Priestley's researches , a great number of naturalists and chemists took up the ...
... acid was absorbed by the plant , that under the influence of Light it was decomposed , and that its oxygen was again li- berated . Upon the publication of Priestley's researches , a great number of naturalists and chemists took up the ...
Сторінка 17
... acid . The same observer found that ammonia and phosphorus exposed to the sun's rays were rapidly converted into phosphuretted hydrogen and a black powder - phosphuret of ammonia . C Vogel also noticed that the red rays of the prismatic.
... acid . The same observer found that ammonia and phosphorus exposed to the sun's rays were rapidly converted into phosphuretted hydrogen and a black powder - phosphuret of ammonia . C Vogel also noticed that the red rays of the prismatic.
Сторінка 43
... acid , had often excited attention . The solution is transparent and colourless , when we look through it ; but when looking See Article Light , Encyclopedia Metropolitana , and On the Che- mical Action of the Rays of the Solar Spectrum ...
... acid , had often excited attention . The solution is transparent and colourless , when we look through it ; but when looking See Article Light , Encyclopedia Metropolitana , and On the Che- mical Action of the Rays of the Solar Spectrum ...
Сторінка 62
... acid , or aqueous chlorine , does not carry the darkening beyond the lilac to which the pure chloride of silver changes by expo- As far as my experiments have gone , it appears that this difference of colour is owing to the admixture of ...
... acid , or aqueous chlorine , does not carry the darkening beyond the lilac to which the pure chloride of silver changes by expo- As far as my experiments have gone , it appears that this difference of colour is owing to the admixture of ...
Сторінка 71
... in a so- lution of twenty grains of nitric acid in 300 grains of water , was acted on in precisely the same manner ; the oxide being entirely removed from the unexposed portion of the glass plate , whilst the changed part appeared F 4.
... in a so- lution of twenty grains of nitric acid in 300 grains of water , was acted on in precisely the same manner ; the oxide being entirely removed from the unexposed portion of the glass plate , whilst the changed part appeared F 4.
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actinic ammonia appears Becquerel bleaching blue rays bodies brown calotype camera obscura carbonic acid chemical action chemical change chemical rays chloride of silver chromate colour combination copper crown 8vo Daguerreotype dark darkened distilled water dried effect Engravings evident experiments exposed exposure fluid formed gallic acid germination glass gold green rays heat hyposulphite of soda impression indigo influence intensity iodide of silver iodine iron least refrangible Light luminous rays mercury metallic minutes morocco Niepce nitrate of silver nitric acid observed obtained orange oxide oxygen paper peculiar phenomena photographic picture placed plants plate portion Post 8vo potash potassium precipitate prepared prism prismatic spectrum produced quantity quinine radiations red rays refrangible rays remarkable salts of silver sensitive Sir John Herschel solar rays space sun's rays sunshine surface tint tion uranium glass vapour vegetable violet rays visible vols washed Woodcuts yellow ray