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Scientific American, Vol. 40, No. 3 (1879) (1879)

leaf 3

An illustration from Scientific American, Vol. 40, No. 3 (1879), 1879, leaf 3
!—— ss +0 oe _—_ —————_—____ +0 + STRAUB’S SCIENTIFIC GRAIN MILL. vand smoothness have attracted much attention to it as a A Canadian Gold Mine. We give herewith engravings representing in different: lubricator. The use of graphite for lubricating is not new. Dr. Laflamme, of the University of… … paint, which is known as Straub’s Scientific Grain Mill. i Fig. 3—STONES IN POSITION FOR DR£SSiNG, \ weighing 88 ounces, lately found in the gdld mine worked is claimed by the manufacturers of this mill that burr stones: revolving ina vertical plane are more effective than hori-| by Messrs. L.…

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