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 12
... covered with a thin coating of the most beautiful purple enamel , which , in the sun , had a degree of brilliancy that was some- times quite dazzling . Whatever material was saturated with the solution of gold , the same stain was ...
... covered with a thin coating of the most beautiful purple enamel , which , in the sun , had a degree of brilliancy that was some- times quite dazzling . Whatever material was saturated with the solution of gold , the same stain was ...
Сторінка 23
... covered with a thin coating of fine varnish , but this has not destroyed their susceptibility of becoming coloured ; and even after repeated washings , sufficient of the active part of the saline matter will still adhere to the white ...
... covered with a thin coating of fine varnish , but this has not destroyed their susceptibility of becoming coloured ; and even after repeated washings , sufficient of the active part of the saline matter will still adhere to the white ...
Сторінка 26
... covered plate . These early productions prove , that the No. 3 . Kew , le 30me Novembre , 1827 . Monsieur , Je m'empresse de vous faire passer plus tôt que plus tard mes essais de dessin et de gravure d'après mes procedés ...
... covered plate . These early productions prove , that the No. 3 . Kew , le 30me Novembre , 1827 . Monsieur , Je m'empresse de vous faire passer plus tôt que plus tard mes essais de dessin et de gravure d'après mes procedés ...
Сторінка 30
... covered in some parts with minute brown spots . 3. A design 4 by 5 inches upright , on a pewter plate 8 by 51 inches , from a print , the subject " Christ bearing the Cross : " every line is beautifully distinct . 4. A copy from a print ...
... covered in some parts with minute brown spots . 3. A design 4 by 5 inches upright , on a pewter plate 8 by 51 inches , from a print , the subject " Christ bearing the Cross : " every line is beautifully distinct . 4. A copy from a print ...
Сторінка 31
... covered and sub- mitted to a gentle heat , until the essential oil is fully impregnated with the colouring matter of the bitumen . If this varnish is not of the required consistency , it is to be allowed to evaporate slowly , without ...
... covered and sub- mitted to a gentle heat , until the essential oil is fully impregnated with the colouring matter of the bitumen . If this varnish is not of the required consistency , it is to be allowed to evaporate slowly , without ...
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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