cover image: Journal of the Asiatic Society of Bengal  Part II  Natural Scince  1893

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20.500.12592/dgfnz5

Journal of the Asiatic Society of Bengal Part II Natural Scince 1893

1894

In this species there are four small equal-sized ocelli and one large ocellus to the forewing the ocelli of the hindwing prominent ; the inner band of the hindwing strongly outwardly angled in the middle ; the outer band is twice outwardly angled once in the middle and once whore it is crossed by the second subcostal nervule this feature being only found in the otherwise quite distinct species [...] 1 silver chloride iodide or bromide precipitated in a thin layer on sheets of platinum or gold was exposed to light as above the exposed plate was positive and that the initial action was much stronger with the bromide than with the chloride ; though the intensity of the currents observed was variable and depended on the thickness of the film of brmide moreover the electrical action was [...] If the light remained of the same intensity and the plate was again exposed the electrical effect was the same as before always provided that the sensbility of the plate remained the same for which purpose the sensitive coating should be sufficiently thick. [...] 1 an emulsion of silver sulphide in potassic sulphate the exposed plate was positive the direction of the currents being the same for all rays; the strength of the current being least for the rays passing through the green glass. [...] Also that this point was regulated by the distance of the plates from the source of light ; the nearer the plates the higher the concentration point of the solution and vice versa.
history
Pages
41
Published in
India
SARF Document ID
sarf.120250
Segment Pages Author Actions
I.—On Erites an orienlal genus of satyrid Butterflies:—by Lionel De Niceéville F. E. S. C. M. Z. S.
1-7 The Natural History Secretary view
Two species of Pedicularis.—By D. Prain
7-9 The Natural History Secretary view
Some Observations of the Electrical action of Light upon Silver and its Haloid Compounds :—By Colonel J. WaterHuose I. S. C. Assistant Surveyor General of India
10-29 The Natural History Secretary view
Novieiæ Indieæ VI. A review of the genus Colquhounin.— by D. Prain
30-38 The Natural History Secretary view
Backmatter
i-ii The Natural History Secretary view

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