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 vi
... Glass in accelerating Germination ; " and No. IV . , “ On the Glass in the Palm House at the Royal Botanical Gardens at Kew . " PREFACE TO SECOND EDITION . vii In submitting this Volume vi PREFACE TO SECOND EDITION .
... Glass in accelerating Germination ; " and No. IV . , “ On the Glass in the Palm House at the Royal Botanical Gardens at Kew . " PREFACE TO SECOND EDITION . vii In submitting this Volume vi PREFACE TO SECOND EDITION .
Сторінка xv
... glasses have no effect on chloride of silver . 4th . The rays which pass through very dark blue glasses rapidly change the colour . The yellow glasses obstruct scarcely any Light ; the blue glasses may be so dark as to admit of the ...
... glasses have no effect on chloride of silver . 4th . The rays which pass through very dark blue glasses rapidly change the colour . The yellow glasses obstruct scarcely any Light ; the blue glasses may be so dark as to admit of the ...
Сторінка 18
... glass . Dr. Herschel was , however , led to suspect that this was not the fact , from the following circumstances ... glasses . What appeared re- markable was , that when I used some of them , I felt a sensation of heat , though I had ...
... glass . Dr. Herschel was , however , led to suspect that this was not the fact , from the following circumstances ... glasses . What appeared re- markable was , that when I used some of them , I felt a sensation of heat , though I had ...
Сторінка 19
... glass . In the blue glass , combination took place instantly when the mixture was exposed to daylight , but without explosion . The mixture in the red glass was exposed by twenty minutes without apparent change . When , however , the ...
... glass . In the blue glass , combination took place instantly when the mixture was exposed to daylight , but without explosion . The mixture in the red glass was exposed by twenty minutes without apparent change . When , however , the ...
Сторінка 22
... glasses , acts upon it with different degrees of intensity . Thus it is found that red rays , or the common sunbeams passed through red glass , have very little action upon it ; yellow and green are more efficacious , but blue and ...
... glasses , acts upon it with different degrees of intensity . Thus it is found that red rays , or the common sunbeams passed through red glass , have very little action upon it ; yellow and green are more efficacious , but blue and ...
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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