Inventions

Linotype Manual

Improvement in Fire-Arms and in the Apparatus Used Therewith

The Romance of Modern Invention

History of electric light

The Miner's Friend; Or, An Engine to Raise Water by Fire

The Century of Inventions of the Marquis of Worcester

Earth 2030

Elementary cryptanalysis

Experiments with Alternate Currents of High Potential and High Frequency

The Next Big Thing

The Steam Engine Familiarly Explained and Illustrated

Makers of Many Things

Origin of modern calculating machines

Giant brains; or, Machines that think

The Invention of the Track Circuit

Made in Ohio

How to become an inventor

English and American tool builders

Hephæstus; or, The soul of the machine