Thacher's Calculating Instrument, Or Cylindrical Sliderule Containing Complete and Simple Rules and Directions for Performing the Greatest Variety Rapidity and Accuracy Classic Reprint - Taschenbuch

Excerpt from Thacher's Calculating Instrument, or Cylindrical Slide-Rule: Containing Complete and Simple Rules and Directions for Performing the Greatest Variety of Useful Calculations With Unexampled Rapidity and Accuracy

By the use of this instrument the drudgery of calculation is avoided, and the relief to the mind may be compared with the most improved mechanical appliances in overcoming the wear and tear of manual labor.

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