Modern printing processes : gum bichromate and platinotype papers (1900)
Abbott, Henry G., 1858-1905 · Chicago : Geo. K. Hazlitt · leaf 17
d, otherwise the sizing will be uneven and will show in the finished print. It is also well to size both sides of the paper, so that either side can be coated at will. By immersing the sheet in the bath it will also prevent all curling and if the sheet is a heavy or medium weight it will hang out… … A Clip. marked with a lead pencil so that the proper side be sensitized or coated. At this point it is well to note that gelatine, when treated with chrome alum, is nearly if not quite insoluble in hot water and it is well to mix these ingredients in some open vessel which can be readily cleaned…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
