Philadelphia College of Pharmacy, Philadelphia College of Pharmacy and Science · Philadelphia : Philadelphia College of Pharmacy · leaf 57
of sulphuric and sulphurous acids. The retorts used for distilling the phosphorus are similar to those used for distilling sulphuric acid from sulphate of iron. They are made of fire clay, about eighteen inches long, and four inches wide in the bulb. The furnace used for the distillation is like-… … A slab of sandstone, i i, covers the fireplace, and has square holes through which the flame passes to the iron plate, I I, upon which the leaden evaporating pans rest. At the back of the furnace the channel K is connected with the chimney, and the draught is regulated by a damper.
Pharmacy · Pharmacology
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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