This book contains private recipes and formulas not known to the average workman. It contains some of the best secrets known to mechanical skill. The ambitious workman is always in search of knowledge — in search of new ideas. Any person wishing to thoroughly master any art must be to a certain extent capable of self instruction. The repair man'is often called on to do all kinds of odd jobs, especially in country towns. It would be next,to im possible for the Workman to remember all the various 1hingsihe has read or heard about. The author believes that such persons will Welcome this volume, and that it will prove valuable for all mechanics. L I have put in twenty hye ve'ats of my life doing such work as this book contains.