Exhibit: Figs. 4 and 5. Photographs of the solar spectrum after having submitted it to the absorbing action of sulphate of quinine. The only rays which this substance allows to pass are those below the violet; limiting the photographic action in the case of iodide of silver (fig. 4) to a narrow band around G, about the centre of the indigo; and in the case of bromide of silver (fig. 5) to the upper portion of the green, the blue and indigo rays.

You found 20453 exhibits created using the process:
Collodion, ordered by EXHIBITION NAME

Record 3040 of 20453

Exhibition:	1854, London, Photographic Society	More from this exhibition >
Exhibit number:	540.04

Photographer:	Crookes, Sir William (1832-1919)	More by this photographer >
Full title:	Figs. 4 and 5. Photographs of the solar spectrum after having submitted it to the absorbing action of sulphate of quinine. The only rays which this substance allows to pass are those below the violet; limiting the photographic action in the case of iodide of silver (fig. 4) to a narrow band around G, about the centre of the indigo; and in the case of bromide of silver (fig. 5) to the upper portion of the green, the blue and indigo rays.
Process:	Collodion [Collodion]	More by this process >

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Exhibitor:	Not Listed

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