"Embrown" Quotes from Famous Books
... appears to me that the paper will absorb its proper dose of iodine better when dry, and the glacial acetic acid will set free any small amount of alkaline potash there may be on the surface; so that it will not embrown on applying gallic acid. By using the ammonio-nitrate of silver in iodizing, and proceeding as above, I find it all I can wish as far as regards the power of my camera. With this paper I can use an aperture of half an inch diameter, and take anything in the shade and open air in ... — Notes and Queries, No. 181, April 16, 1853 • Various |