Ernest Tompkins 
Knitting Calculations 
A Cross-Indexed Text Book of Practical Problems in Flat and Rib Knitting on the Interrelation of Yarn Number; Diameter; Needles Per Inch; Stitches; Needle Sp; Eed, Production in Pounds, Square Yards, Linear Yards and Dozens of Garments Inch; Weight of Fab

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. This book enables the knitter to shape his course by basing it on the experience of others. The rules given herein are derived from voluminous notes made during many years and from extensive experimental work with different gages, yarns and stitches in order to round out the information collected in the various mills of the country.