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Scientific American, Vol. 56, No. 19 (1887) (1887)

leaf 6

An illustration from Scientific American, Vol. 56, No. 19 (1887), 1887, leaf 6
rubber band or other fasten- spindle, and will hold a 3g round drill, or the ordinary a flat surface from which it rebounds, and the angles ing it must be secured with its back firmly against square tapered shank or brace drill. The balance the flat surface of the pin. It should correspond are… … posed that 300,000 more shall be, taken in hand by wire or delicate plumb line is held in front of it near STEARNS’ NEW BENCH DRILL. means of 120 miles of canals and dikes. It is further the line of the circle, and is shifted until it covers its reported that upward of 600,000 acres of once useless…

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