J. C. P. R. says he made some paper according to formula given for plain paper, but in a day or two it had discolored so as to be unfit for use. He says he dried the paper by a gentle heat, wrapped it in brown paper, and put it in a tin box. If there was only a slight discoloration the paper would make good prints which would give clear whites when printed, toned, and washed. A yellowish brown tint does not affect the printing qualities of the paper. The paper gives best results if it can be used the day it is made. If made at night, it should be used the next day. Three days is the longest it can be warranted to keep.