The Slide Rule

Once more, Astragal Press has rescued an old and rare book from obscurity, allowing for the broad circulation of information previously limited to the select few who could afford access. This book, first published in 1881, was written about the use of the first standard slide rule made in the United States: a Mannheim-type slide rule made by Stephens Co., a mjor rule manufacturer. Included in Riddell’s book, aimed primarily at carpenters and joiners, is a wealth of fascinating instruction on…