Mechanical

Tractor Principles

The Steam Engine Familiarly Explained and Illustrated

How to Make Electrical Machines Containing Full Directions for Making Electrical Machines, Induction Coils, Dynamos, and Many Novel Toys to Be Worked by Electricity

HVAC Basics for Beginners

Watch and Clock Escapements

Steam Locomotive Construction and Maintenance

The Jacquard Machine Analyzed and Explained