Early Work In Photography
A Text-book For Beginners

100 Early Work lu Photography. Prints toned in this bath are rarely, if ever, permanent; it is very wasteful, and we do not recommend it. It is made thus : A.—Sodium tungstate.. .. • • 18o grains Ammonium sulphocyanide .. .. 300 » Sodium thiosulphate (hypo).. • • 6 ounces Water .. .. • • • • 20 » B.—Gold Chloride* .. .. • ■ 73 grains Water .. • • • • 4 ounces When quite dissolved, pour solution B, a little at a time witli constant stirring, into solution A; more water may be added if the bath tones too quickly. 1. 1 This will give rich purple tones upon prints trom plucky negatives. Prints must be deep in color, and are to be im- mersed without previous washing; they change to a dirty yellow and gradually work back again to purple. They must be well washed after toning. ,. Some combined baths contain alum and acetate of lead, but as they are infinitely worse than the foregoing, we refrain from inflicting them on beginners. Lead tones are beautiful in the extreme while they last, but they can be obtained without the use and waste of gold. 1, As a warning to avoid lead, we give a formula that will yield exquisite results for a time. All we ask is that a beginner will not try it until he has mastered the separate toning and fixing baths. He will then be interested 111 toning some prints with lead, and exposing them for a week to strong daylight and the open-air. When lie sees the re- sult he must recollect that we did not advise the use of the bath. The following is the formula: Lead Toning and Fixing Bath. Lead acetate .. • • • ■ 280 grains IT .. 4 ounces Hypo.. Water • ■ • • • • 20 ” Print deeply and do not wash before toning. Famish for Negatives. Shellac .• •• 960 grains Sandarac .. • • ■ • 600 » Camphor .. • • • • 10 ” Alcohol (methylated) .. • • 20 ounces Filter before use. “The 15-gr. tubes of gold and sodium contain only 74 grs. of gold chloride unless guaranteed on the label.