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 22
... prepared paper , to produce black profiles by the action of Light , but he died without disclosing the preparation which he employed ; indeed his countryman the Abbé Moigno admits that Charles left " no authentic document to attest his ...
... prepared paper , to produce black profiles by the action of Light , but he died without disclosing the preparation which he employed ; indeed his countryman the Abbé Moigno admits that Charles left " no authentic document to attest his ...
Сторінка 23
... prepared leather . * *** The images formed by means of a camera obscura have been found to be too faint to pro- duce , in any moderate time , an effect upon the nitrate of silver . To copy these images was the first object of Mr ...
... prepared leather . * *** The images formed by means of a camera obscura have been found to be too faint to pro- duce , in any moderate time , an effect upon the nitrate of silver . To copy these images was the first object of Mr ...
Сторінка 31
... prepared in the following manner : I about half fill a wine - glass with this pulverised bitumen . I pour upon it , drop by drop , the essential oil of lavender , till the bitumen can absorb no more . I afterwards add as much more of ...
... prepared in the following manner : I about half fill a wine - glass with this pulverised bitumen . I pour upon it , drop by drop , the essential oil of lavender , till the bitumen can absorb no more . I afterwards add as much more of ...
Сторінка 34
... preparing the paper was given , and the process by which the design was fixed described . In these , however , there will be found but little advance upon the process of Mr. Wedgwood : the mode of fixing , which was the only novelty ...
... preparing the paper was given , and the process by which the design was fixed described . In these , however , there will be found but little advance upon the process of Mr. Wedgwood : the mode of fixing , which was the only novelty ...
Сторінка 57
... prepared by precipitating it in the dark , from a solution of nitrate of silver , by pure potash is , when applied to paper in a pasty state and dried , of a very dark green colour ; if it be exposed for a few hours to good sunshine ...
... prepared by precipitating it in the dark , from a solution of nitrate of silver , by pure potash is , when applied to paper in a pasty state and dried , of a very dark green colour ; if it be exposed for a few hours to good sunshine ...
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Загальні терміни та фрази
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 Daguerreotype dark darkened distilled water dried Edition effect Engravings evident experiments exposed exposure ferrocyanide 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 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 solution of nitrate space sun's rays sunshine surface tint tion uranium glass vapour vegetable violet rays visible vols washed Woodcuts yellow ray
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