Philadelphia College of Pharmacy, Philadelphia College of Pharmacy and Science · Philadelphia : Philadelphia College of Pharmacy · leaf 227
the will of the workman, set at an angle like that of a carpenter's plane, and which ex- tends from one to the other. A seat for the driver, and a staple for a whiffle, complete the machine. The shaving trimmed off by this plane is three inches thick, and if clear ice is not reached by once going… … LARGE ICE PLOW. PLOW AND GUIDE. The right ice having been reached, the process of cutting now commences in good earnest. The hand plow renews its groove, and the swing guide marker follows, until the surface has been marked as before. The large ice plow then follows, and extends the depth of the…
Pharmacy · Pharmacology
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
