Researches on Light in Its Chemical Relations: Embracing a Consideration of All the Photographic Processes |
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Page vi
... present time . Many of the Photographic processes described were the reward of my experiments . The analyses of the solar beam , determining the relation between the Light and the chemical power of the solar rays are almost entirely ...
... present time . Many of the Photographic processes described were the reward of my experiments . The analyses of the solar beam , determining the relation between the Light and the chemical power of the solar rays are almost entirely ...
Page xiii
... presents itself , and naturally the dis- coverer seeks to find the cause to which this phenomenon is due . The salt of silver remains perfectly white so long as it is kept in darkness ; but it blackens when it is exposed to sunshine ...
... presents itself , and naturally the dis- coverer seeks to find the cause to which this phenomenon is due . The salt of silver remains perfectly white so long as it is kept in darkness ; but it blackens when it is exposed to sunshine ...
Page 17
... present state is sufficient to complete the analogy of the invisible with the visible rays , and to show that they are equally liable to the general law , which is the principal subject of this Paper , " that is , the interference of ...
... present state is sufficient to complete the analogy of the invisible with the visible rays , and to show that they are equally liable to the general law , which is the principal subject of this Paper , " that is , the interference of ...
Page 68
... present case ) a larger quantity of salt in some places than in others : and when we apply the nitrate of silver , portions of the paper will become covered with the chloride of silver , having the required excess of the nitrate of ...
... present case ) a larger quantity of salt in some places than in others : and when we apply the nitrate of silver , portions of the paper will become covered with the chloride of silver , having the required excess of the nitrate of ...
Page 69
... present the hyposulphite changes it to a sul- phuret , the brown colour of which is destructive to the beauty of the picture , and prevents its being used for multiplying originals . When nearly dry , it is to be brushed over , first on ...
... present the hyposulphite changes it to a sul- phuret , the brown colour of which is destructive to the beauty of the picture , and prevents its being used for multiplying originals . When nearly dry , it is to be brushed over , first on ...
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Common terms and phrases
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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