282 PHOTOGRAPHIC FACTS AND FORMULAS 
PALLADIOTYPE PAPER.—This paper gives a very visible 
printing image, and exposure should be carried on until all 
details are visible. Immerse the prints face up in: 
Sodium citrate 232.5'e 10 oz. 
Citric acid 23.25 ¢ 1 oz. 
Water 1000 ccm 43 oz. 
For black prints the temperature should be kept between 7° 
and 16° C. (45° to 60° F.). For sepia paper use: 
Sodium citrate 50 g 6 oz. 
Citric acid 2.62 150 gr. 
Water 1000 ccm 120 oz. 
Heating the developer to 38° C. (100° F.), not beyond, gives 
warmer tones. Clearing bath for both papers: 
Sodium citrate 2325 ¢ 10 oz. 
Citric acid 93 g 4 oz. 
Water 1000 ccm 43 oz. 
For use mix 1 part with 7 parts water. Three baths should 
be used, with 10, 15, and 20 minutes in the first, second, and 
third baths respectively. For brilliant prints add from 4 to 6 
drops of a 10 per cent solution of potassium bichromate to 
the developer. Wash the prints in running water for 10 or 
15 minutes or in several changes of 10 minutes each. 
SATISTA PAPER.—Print until a faint image appears, and 
develop in: 
Potassium oxalate 200 g 8 oz. 
Oxalic acid 522 100 gr. 
Water 1000 ccm 40 oz. 
Temperature about 21° C. (70° F.); for warmer tones heat 
to 38° C. (100° F.). Clear the prints in: 
Sodium citrate 4g 1Y4 oz. 
Water 1000 ccm 75 02. 
Three baths are advisable of 5, 10, and 15 minutes respec- 
tively, followed by a short washing for 10 minutes, not 
