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 2
... appears to have given form to the chaotic earth , as it chased the darkness from the face of the deep . ( 2. ) An agent influencing every form of animate and inanimate creation , would necessarily excite the attention of mankind from ...
... appears to have given form to the chaotic earth , as it chased the darkness from the face of the deep . ( 2. ) An agent influencing every form of animate and inanimate creation , would necessarily excite the attention of mankind from ...
Сторінка 14
... appears to have investigated this subject with much care , and he determined the fact , that several of the salts of mercury were reduced by the Light , and not by the heat of the sun's rays . * ( 18. ) In 1775 B. C. Méese first ...
... appears to have investigated this subject with much care , and he determined the fact , that several of the salts of mercury were reduced by the Light , and not by the heat of the sun's rays . * ( 18. ) In 1775 B. C. Méese first ...
Сторінка 15
... appears to have observed that the two ends of the solar spectrum produced dissimilar effects on phosphorus . ‡ ( 21. ) In 1801 , Ritter , of Jena , repeated the experi- ments of Scheele , and rose the question of the existence ...
... appears to have observed that the two ends of the solar spectrum produced dissimilar effects on phosphorus . ‡ ( 21. ) In 1801 , Ritter , of Jena , repeated the experi- ments of Scheele , and rose the question of the existence ...
Сторінка 24
... appears to have discouraged any further experiments of this kind at that time in England . It must not , however , be forgotten that their progress in this path was stopped only by the want of a solvent for the chloride of silver ...
... appears to have discouraged any further experiments of this kind at that time in England . It must not , however , be forgotten that their progress in this path was stopped only by the want of a solvent for the chloride of silver ...
Сторінка 30
... appear are metallic , but are blacker , and reflect more light than the under pewter surfaces ; the colour appears to be that of lead or platinum . No. 1. has experienced no injury . No. 2. is covered in some parts with minute brown ...
... appear are metallic , but are blacker , and reflect more light than the under pewter surfaces ; the colour appears to be that of lead or platinum . No. 1. has experienced no injury . No. 2. is covered in some parts with minute brown ...
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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