Researches on Light in Its Chemical Relations: Embracing a Consideration of All the Photographic Processes |
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Page 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 ...
Page 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 ...
Page 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 ...
Page 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 ...
Page 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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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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