ce of photography to a very large extent as a pastime, and by the artistic talent which is so generally tected by a strainer, and is for the purpose of receiving ing its image upward against a ground glass, arranged inherent in their nature often produce results which and storing the oil to be… … moved and easily cleaned. To cause the oil to flow box looking from the rear to the front), which operates freely, the second chamber is connected with an open through a slot in the tube cut half way through it; THORNTON’S APPARATUS FOR CLEANING OILS, pipe extending above the upper tank; steam may…
Internet Archive · Public domain (published before 1931). Free to use for anything.