Summary

Various,  Notes and Queries, Number 216, December 17…

“ Upon the goodness of your iodized paper of course depends your future success. Although it is not requisite to prepare it by candle-light (which in fact is objectionable from your inability to see if the yellow tint is equally produced) , I think it should not be exposed to too strong a light; and as the fly-fisher in the dull winter months prepares his flies ready for the approaching spring, so may the photographer in the dull weather which now prevails, with much advantage prepare his stock of iodized paper ready for the approach of fine weather. ”
Source: Gutenberg

Various,  Notes and Queries, Number 216, December 17…

“ The great fault of Turner's paper consists in the frequent occurrence of spots, depending upon minute portions of brass coming from the machinery, or from the rims of buttons left in the rags when being reduced to pulp, and thus a single button chopped up will contaminate a large portion of paper; occasionally these particles are so large that they reduce the silver solutions to the metallic state, which is formed on the paper; at other times they are so minute as to simply decompose the solution, and white spots are left, much injuring the effect of the picture. ”
Source: Gutenberg

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