Journal of the Philadelphia College of Pharmacy (1829)
Philadelphia College of Pharmacy · Philadelphia, The College · leaf 109
Professor Hare's Improved Syphon. 93 over, and fill the syphon. After this, on releasing the neck of the bottle, the current continues, as when established in any other way. … in its place by a brass band or clasp, made to embrace both it, and the circumference of the plate, and to fasten by means of a screw. Before applying the caoutchouc, it was softened by soak- ing it in ether, and a hole, obviously necessary, was made in the centre, by a hollow punch. There is no…
Pharmacy
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