_Treatment of the Paper Positive after fixing._--1. Is it absolutely
necessary for the preservation of the picture, that the size should be
wholly removed from the paper? It seems to me that the hot-water treatment
materially injures the tone. {142}
2. In re-sizing, what is the kind of size and degree of strength generally
made use of, and mode of application? I have tried gelatine and isinglass
size, of various degrees of strength, without satisfactory results.
3. Should the hot iron, used for improvement of tone, be applied previous
to the picture being re-sized, or as a finishing operation? I find much
difficulty from the liability of the paper to shrivel under it.
4. Is the glossy appearance, observed in finished photographs, attained
solely by use of the burnisher?
5. What is albumenized paper? used, I believe, by some in printing; and the
mode of its preparation?