Researches on Light in Its Chemical Relations: Embracing a Consideration of All the Photographic Processes |
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Page 9
... obtained . A large amount of curious facts was col- lected - effects depending on very diversified causes were recorded , all of which were attributed to that element which the author was inclined to regard as the most im- portant and ...
... obtained . A large amount of curious facts was col- lected - effects depending on very diversified causes were recorded , all of which were attributed to that element which the author was inclined to regard as the most im- portant and ...
Page 17
... obtained by Ritter and Wollaston : " In order to complete the com- parison of their properties ( the chemical rays ) with those of visible Light , I was desirous of examining the effect of their reflection from a thin plate of air ...
... obtained by Ritter and Wollaston : " In order to complete the com- parison of their properties ( the chemical rays ) with those of visible Light , I was desirous of examining the effect of their reflection from a thin plate of air ...
Page 39
... obtain this proof in the following manner : -If the screen upon which the spectrum is received is brought nearer the ... obtained . However careful we may be as to the proportions in which the powders are mixed , and in selecting those ...
... obtain this proof in the following manner : -If the screen upon which the spectrum is received is brought nearer the ... obtained . However careful we may be as to the proportions in which the powders are mixed , and in selecting those ...
Page 43
... obtained which will be pure , the very trifling quantity of diffused light by which it may be accompanied being too feeble to be taken into account . The results obtained by this method support the Newtonian law of the strict relation ...
... obtained which will be pure , the very trifling quantity of diffused light by which it may be accompanied being too feeble to be taken into account . The results obtained by this method support the Newtonian law of the strict relation ...
Page 48
... obtain a spectrum in which we have not some error arising from this cause . In our future examination of the heating ... obtaining a pure spectrum described . ( 62. ) Howsoever pure the spectrum may be , it is not an uninterrupted line ...
... obtain a spectrum in which we have not some error arising from this cause . In our future examination of the heating ... obtaining a pure spectrum described . ( 62. ) Howsoever pure the spectrum may be , it is not an uninterrupted line ...
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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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