""A New General Theory of the Teeth of Wheels"" is a book written by Edward Sang in 1852. The book is a comprehensive study of the design and mechanics of gear teeth. Sang presents a new theory on the shape and spacing of gear teeth, which he argues will improve the efficiency and durability of gears. The book covers a wide range of topics related to gear design, including the history of gears, the mathematics of gear ratios, and the practical considerations of manufacturing gears. Sang's theory is based on the idea that the shape of gear teeth should be optimized for the specific application, rather than using a standard shape for all gears. The book includes detailed diagrams and illustrations to help readers understand the concepts presented. Overall, ""A New General Theory of the Teeth of Wheels"" is a valuable resource for anyone interested in the design and mechanics of gears, and a significant contribution to the field of mechanical engineering.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.