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 10
... washed , was , for the greater part , dissolved by a pure acid of nitre , which , by the operation , acquired volatility . This solution I precipitated again by means of sal - ammoniac into horn silver . Hence it follows that the ...
... washed , was , for the greater part , dissolved by a pure acid of nitre , which , by the operation , acquired volatility . This solution I precipitated again by means of sal - ammoniac into horn silver . Hence it follows that the ...
Сторінка 32
... washed by being placed upon an inclined plane , over which a stream of water is carefully poured . It should be observed that the Light solidifies the varnish , and renders it less soluble than the parts upon which the shadows have ...
... washed by being placed upon an inclined plane , over which a stream of water is carefully poured . It should be observed that the Light solidifies the varnish , and renders it less soluble than the parts upon which the shadows have ...
Сторінка 60
... washed with the solution of nitrate of silver already mentioned , was placed still damp in the proper po- sition , and in few a minutes a good chemical image resulted . The colour of the impressed spectrum on this paper is , at first ...
... washed with the solution of nitrate of silver already mentioned , was placed still damp in the proper po- sition , and in few a minutes a good chemical image resulted . The colour of the impressed spectrum on this paper is , at first ...
Сторінка 61
... washed over with a solution of 100 grains of the salt in a fluid ounce of distilled water , and dried at a little distance from a warm fire , we form a paper which , for copying lace - work , feathers , and articles of which a perfect ...
... washed over with a solution of 100 grains of the salt in a fluid ounce of distilled water , and dried at a little distance from a warm fire , we form a paper which , for copying lace - work , feathers , and articles of which a perfect ...
Сторінка 63
... washes of the nitrate of silver , have given me , when the sunshine has been favourable , a range of colours very nearly corresponding with the natural hues of the prismatic spectrum . Under favourable circumstances the mean red ray ...
... washes of the nitrate of silver , have given me , when the sunshine has been favourable , a range of colours very nearly corresponding with the natural hues of the prismatic spectrum . Under favourable circumstances the mean red ray ...
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absorption actinic ammonia appears Becquerel bleaching blue rays bodies brown calorific rays calotype camera obscura carbonic acid chemical action chemical change chemical rays chloride of silver chromate colour combination copper Daguerreotype dark darkened dissolved distilled water dried effect employed evident experiments exposed exposure ferrocyanide fluid formed gallic acid germination gold green rays heat hyposulphite of soda impression influence intensity invisible iodide of silver iodine iron least refrangible Light luminous rays mercury metallic minutes Niepce nitrate of silver nitric acid observed obtained oxide oxygen paper peculiar phenomena photographic picture placed plants plate portion potash potassium precipitate prepared prism prismatic spectrum produced quantity quinine radiations red rays refrangible rays remarkable rendered 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 washed yellow ray