FOR TME Scientific American« ««manufacturers Index This index 1b sent gratuitously to prospective purchasers, both in this country f\ and abroad, wbo inquire for the addresses of dealers and manufacturers of the •% ^ goods and machines classified therein. It is also tsent, to reliable Export Mer- *… … CRUDE ASBESTOS AND ASBESTOS FIBRE R.H.MARTIN, OFFICE, ST.PAUL BUILDING, 220 Bway, New York. MINES and WORKS,THETF0RD, P. Q. CANADA. ♦ ff =w-6jn.MICROMETERS ^ jm ^^L will measure by thous- ♦ ^ fi^L f^^^a andths round work to ^ A lr=^ c , , * \ *\4, in. and flat work ^ X ^ 1 -gfara/fl-Sr-^aH to 6 in.…
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