ch as very fast. No. 1 Vermont marble losing % of an inch. will cause the shoe to be applied to the wheel slightly screwed into the upper end of the sleeve, and by its T—T" above its axis, caus- removal the engi- ing a wedge-like ac- neer may readily tion between the tire discover at what and the… … useful for oiling the work in Philadel- valve. DIAQRAU SHOWING WEARING aUALITIES OF FLOORING MATERIALS. phia, and they were 11897 SCIENTIFIC AMERICAN, INC.
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