The Practical photographer; an illustrated monthly of technical photography (1904)
Boston [etc., Photo era publishing company] · leaf 82
oughly powder this in a mortar, and sift through medium mesh canvas. Take a 4 oz. graduate, and put in it 2J oz. of lukewarm water. Take a bit of fine clean muslin, about six inches square, dip this in hot water and squeeze dry. Lay the muslin M on the top of the graduate, Fig. 33, and with a… … Fig. 33. on the muslin at a time, but only just enough to keep the part under water well covered. Bichromate Solution. — Make a saturated solution of potassium bichromate in warm water, and allow to stand until cool. Pour off the clear part into another bottle, and add liquid ammonia drop by drop…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from Solis e puteo emergentis: sive dissertationis chymiotechnicae libri tres. In quibus totius operationis chymicae methodus practica: materia lapidis philosophici, et nodus [sic] solvendi ejus, operandique, ut et clavis operum Paracelsi qua abstrusa explicantur, deficientia supplentur. Cum praefatione chymiae veritatem asserente ... (1613)](https://img.insideoutlibrary.com/img/200/ia-b30761955-42-0.webp)
![An illustration from Solis e puteo emergentis: sive dissertationis chymiotechnicae libri tres. In quibus totius operationis chymicae methodus practica: materia lapidis philosophici, et nodus [sic] solvendi ejus, operandique, ut et clavis operum Paracelsi qua abstrusa explicantur, deficientia supplentur. Cum praefatione chymiae veritatem asserente ... (1613)](https://img.insideoutlibrary.com/img/200/ia-b30761955-50-1.webp)
