spector of Mines Pennsylv complete assistant for merchants, mechanics and farm- Superintendent of Coal pines A new, revised, an ers. For the purpose of showing at aglance the amount enlarged edition, illustrated by 114 engravings, in one and value of any quantity of merchandise, from a quar- F YOU… … Box I., Windsor Locks,.Conn. cloth. illustratlons. 200 pages. 12mo. —By F.R. Hutton. A paper pointing out the advan- if pos: Ideal Surface Gauges, Depth Gauges, and $3.00 THOMPSON IMPROVED INDICATOR tages of oneaing refined and crude petroleum for boiler 4g Fine machining Tools. firing. ontained in…
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