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Henderson & Hamlin's Lightning Calculator is an unchanged, high-quality reprint of the original edition of 1872. Hansebooks is editor of the literature on different topic areas such as research and science, travel and expeditions, cooking and nutrition, medicine, and other genres... Read Full Overview

Henderson's Intellectual and Practical Lightning Calculator is a book written by John Alexander Henderson and originally published in 1873. The book is a comprehensive guide to mental calculations and mathematical shortcuts, designed to help readers perform complex calculations... Read Full Overview