^titniiiU ^mmun. June 21, 1890.] 399 VALUABLE BOOKS After being on the Market Five Years NOW READY. The "AC ME "still Leads! POD Experimental ^ciei^ce, Sheet Metal Workers. Sizes One, Two, Three, and Four Horse Power. Arranged for either Natdral Oas or Kerosene OH fire, as ordered. No extra… … Steel Rules, Steel Caliper Rules, Universal Bevels. Bevel Protractors, 91 & 92 WATER STREET, By Geo, M. Hopkins. Depth Gauges. Screw Pitch and Cen- Plitsburgh, Pa., Tre Gauges, Hardened Steel Squares, Manufacturers of everytning needed for Graduated Steel Squares, Spring Calipers, Hardened Straight…
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