Philadelphia College of Pharmacy, Philadelphia College of Pharmacy and Science · Philadelphia : Philadelphia College of Pharmacy · leaf 107
take care of itself until the process is finished ; and the writer, in a slow percolation, for saturated tinctures, for instance, has often had, it to run on eight or nine days untouched. Another convenient form of percolator, which the writer con- trived, and has often used on various scales from… … ordinary faucet in any low portion of the barrel ; or, more simply, as the writer has done, by using a small India-rubber tube for a feeding syphon, inside of the large one for air, allowing the small one to project two inches below the larger one, where they pass through the funnel opening at g ;…
Pharmacy · Pharmacology
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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