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" The fibres of cotton must be well separated as in the preceding mode. The two acids are first mixed, and the requisite proportion of cotton added as quickly as possible, and well stirred with two glass rods for not more than fifteen seconds : the gun-cotton... "
THE JOURNAL OF THE PHOTOGRAPHIC SOCIETY OF LONDON. - Page 67
by HUGH W. DIAMOND, M.D., F.S.A. - 1866
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Photography

Robert Hunt - 1853 - 356 pages
...of cotton. " The fibres of cotton must be well separated as in the preceding mode. The two acids are first mixed, and the requisite proportion of cotton...the collodion would be injured by any remaining." To Prepare the Collodion. — Thirty grains of gun-cotton prepared as described should be taken and...
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Notes and Queries, Volume 7

1853 - 748 pages
...and add to them eighty grains of cotton; well stir," &c., "for not more than FIFTEEN SECONDS," &c. " It will be seen that the cotton is not exposed to...further, the solubility of the cotton is entirely lost." Not only is the order of manipulation different (a point probably not material), but the time between...
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A Manual of Photography

Robert Hunt - 1852 - 380 pages
...washings, &c. as in the former recipe. " It will be seen that the cotton is not exposed to the action oi the mixed acids, in this last mode, longer than is...must not be spared in washing the cotton, for not n trace of acid should be left ; the collodion would be injured by any remaining." To Prepare the Collodion....
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A Manual of Photography

Robert Hunt - 1854 - 396 pages
...from the acids, and plunged into water to undergo the same washings, &c., as in the former receipt. " It will be seen that the cotton is not exposed to...the collodion would be injured by any remaining." The substance lignine — which, is the true wood of every variety of plant, and has the composition...
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