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 5
... mercury , and transmuted them into the earths and metals , or the myriad forms of organic matter . A notion , indeed , somewhat similar to this prevailed amongst the ancient philosophers , for Democritus speaks of minute atoms in swift ...
... mercury , and transmuted them into the earths and metals , or the myriad forms of organic matter . A notion , indeed , somewhat similar to this prevailed amongst the ancient philosophers , for Democritus speaks of minute atoms in swift ...
Сторінка 6
... mercury , whose small particles are every way pierced and filled with the sulphureous prin- ciple , or the matter of Light , which links and binds the whole mass together . " " Gold differs from silver in nothing but in having the ...
... mercury , whose small particles are every way pierced and filled with the sulphureous prin- ciple , or the matter of Light , which links and binds the whole mass together . " " Gold differs from silver in nothing but in having the ...
Сторінка 14
... mercury were reduced by the Light , and not by the heat of the sun's rays . * ( 18. ) In 1775 B. C. Méese first published some experi- ments upon the influence of Light on plants ; and in 1779 Dr. Priestley gave his experiments on the ...
... mercury were reduced by the Light , and not by the heat of the sun's rays . * ( 18. ) In 1775 B. C. Méese first published some experi- ments upon the influence of Light on plants ; and in 1779 Dr. Priestley gave his experiments on the ...
Сторінка 18
... mercury ) in ether , but that the blue rays rapidly decomposed it . He also observed that the decomposition of several metallic compounds was gra- dually brought on by the same class of rays . Dr. Davy much more recently repeated these ...
... mercury ) in ether , but that the blue rays rapidly decomposed it . He also observed that the decomposition of several metallic compounds was gra- dually brought on by the same class of rays . Dr. Davy much more recently repeated these ...
Сторінка 105
... mercury , so arranged that the heat of a spirit - lamp may be applied until the temperature of the mercury is about 167 ° Fahr . The lamp is then removed ; and the plate , which is watched through a glass in the side of the box , by the ...
... mercury , so arranged that the heat of a spirit - lamp may be applied until the temperature of the mercury is about 167 ° Fahr . The lamp is then removed ; and the plate , which is watched through a glass in the side of the box , by the ...
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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