A Manual of the Slide Rule

2023 Reprint of the 1930 Edition. Full facsimile of the original edition and not reproduced with Optical Recognition Software. The present manual is intended to supply in a uniform presentation an account of the history, principles, and practical uses of the slide rule. Among its specific aims are: to show the unity of the principle of operation of all slide rules, to explain this principle in a manner which shall be easily understood, to give in clear and simple language explicit and inclusive instructions for the use of all the standard forms, and to supply a fairly complete account of the history of the slide rule and a description of the more usual of the special forms of the rule.