Alcohol 10 ounces
Ether 20 ounces
Pyroxyline 220 grains
SENSITIVE COLLODION
Plain collodion 12 drams
Sensitizing solution 6 drams
Nitric acid 2 or more drops
Keep this collodion in the dark, as it is quite sensitive.
PREPARATION OF THE PAPER
Arrowroot, pulverized 1 ounce
Water 32 ounces
Solution of acetate of 10 drops
lead
Heat to 100 deg. Fahr. and then add four ounces of albumen. The paper is
floated on this solution for five minutes and hung up to dry. The sizing
may also be applied with a sponge in the manner often described.
The proofs should be slightly over-printed and, before toning and fixing,
placed for about ten minutes in the following solution:
Distilled water 40 ounces
Acetic acid 1 ounce
Hydrochloric acid 1 ounce
After washing in several changes of water, the proofs may be toned in any
toning bath, and then fixed with sulphocyanide of potassium, washing
afterwards in the usual manner.