This handbook is intended to furnish the reader with practical help for the every — day handling Of shafting, pulleys and belting. These are allied in the Operation of plants and it is a pretty generally con ceded fact that all three are much neglected by many operators. A close perusal of these pages will enable the reader to determine the best course to pursue in the most common instances and in various troubles, and in all articles there are suggestions for similar cases which may arise.