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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Результати 1-5 із 61
Сторінка 22
... paper is used . After the colour has been once fixed on the leather or paper , it cannot be removed by the application of water , or water and soap , and it is WEDGWOOD'S PROCESS . 23 in a high degree permanent . 22 RESEARCHES ON LIGHT .
... paper is used . After the colour has been once fixed on the leather or paper , it cannot be removed by the application of water , or water and soap , and it is WEDGWOOD'S PROCESS . 23 in a high degree permanent . 22 RESEARCHES ON LIGHT .
Сторінка 33
... removed all the varnish from it , he exposed the tablet to the vapour of petroleum , by which a much more certain effect was produced . ( 36. ) A correspondence between M. Niepce and M. Da- guerre has been published , which sufficiently ...
... removed all the varnish from it , he exposed the tablet to the vapour of petroleum , by which a much more certain effect was produced . ( 36. ) A correspondence between M. Niepce and M. Da- guerre has been published , which sufficiently ...
Сторінка 50
... removed by consider- ing the feeble photographic action in that part of the spectrum . " These fixed lines are so uniform that they are employed with the highest advantage in marking the spaces of the spectrum , instead of referring as ...
... removed by consider- ing the feeble photographic action in that part of the spectrum . " These fixed lines are so uniform that they are employed with the highest advantage in marking the spaces of the spectrum , instead of referring as ...
Сторінка 69
... removal of the unchanged salt from the plate or paper employed : some solvent is therefore required . The best solvent for the chloride or iodide of silver is the hyposul- phite of soda , for which we are indebted to Sir John Herschel ...
... removal of the unchanged salt from the plate or paper employed : some solvent is therefore required . The best solvent for the chloride or iodide of silver is the hyposul- phite of soda , for which we are indebted to Sir John Herschel ...
Сторінка 71
... removed very slowly , by means of a small glass siphon , so that the powder on the glass plates might not be disturbed . With- out being removed from the vessel in which the precipi- tation was effected , the oxide was dried at a very ...
... removed very slowly , by means of a small glass siphon , so that the powder on the glass plates might not be disturbed . With- out being removed from the vessel in which the precipi- tation was effected , the oxide was dried at a very ...
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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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