Audels Engineers and Mechanics Guide

This book is one of the best physics primers that I have ever seen. In addition the highly detailed desrcriptions and drawings of all components of a vast variety of steam engines is far beyond the extent of anything that I have seen before. I purchsed a 1930 edition (part II) of this book which drew me to this site and the earlier version. Scanning is of very high standard with magnificently clear drawings. Every steam buff should read this book.