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
... Germination and the Growth of Plants , with the practical applications which have been made of my discoveries , I can refer to with satisfaction . * I have used the labours of other men no further than they were neces- sary to ...
... Germination and the Growth of Plants , with the practical applications which have been made of my discoveries , I can refer to with satisfaction . * I have used the labours of other men no further than they were neces- sary to ...
Сторінка 207
... germination , and Ingenhouz and Sennebier found that seeds germinated more rapidly even beneath the soil in the shade than in sunshine . This fact has been now established beyond all doubt . ( 365. ) Priestley's Experiments * on the ...
... germination , and Ingenhouz and Sennebier found that seeds germinated more rapidly even beneath the soil in the shade than in sunshine . This fact has been now established beyond all doubt . ( 365. ) Priestley's Experiments * on the ...
Сторінка 215
... germination and vegetable growth , as affected by solar radiations . The title heading to each of my former reports has been the " Influence of Light , " & c . I have now changed that form of expression and adopted the above . My ...
... germination and vegetable growth , as affected by solar radiations . The title heading to each of my former reports has been the " Influence of Light , " & c . I have now changed that form of expression and adopted the above . My ...
Сторінка 219
... germinate under the influence of Light deprived of that principle on which chemical change depends . This state- ment has been objected to by Dr. Gardner ( American Journal of Science , Jan. 1844 , vol . xlvi . ) , on the results of ...
... germinate under the influence of Light deprived of that principle on which chemical change depends . This state- ment has been objected to by Dr. Gardner ( American Journal of Science , Jan. 1844 , vol . xlvi . ) , on the results of ...
Сторінка 220
... germination of seed , and consequently we should not ex- pect that ray in which the maximum of Light is found to facilitate germination , but on the contrary , as in Mr. Hunt's experiments , to retard it . " This , however , is not the ...
... germination of seed , and consequently we should not ex- pect that ray in which the maximum of Light is found to facilitate germination , but on the contrary , as in Mr. Hunt's experiments , to retard it . " This , however , is not the ...
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absorption actinic ammonia appears Becquerel bleaching blue rays bodies brown calorific rays calotype camera obscura carbonic acid chemical action chemical change chemical rays chloride of silver chromate colour combination copper Daguerreotype dark darkened dissolved distilled water dried effect employed evident experiments exposed exposure ferrocyanide fluid formed gallic acid germination gold green rays heat hyposulphite of soda impression influence intensity invisible iodide of silver iodine iron least refrangible Light luminous rays mercury metallic minutes Niepce nitrate of silver nitric acid observed obtained oxide oxygen paper peculiar phenomena photographic picture placed plants plate portion potash potassium precipitate prepared prism prismatic spectrum produced quantity quinine radiations red rays refrangible rays remarkable rendered 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 washed yellow ray