Radium and Radio-Active Substances Considered as a Conceived Source of Perpetual Motion.
Perpetual Motion Devices Attempting Its Attainment by a Misconception of the Relation of Momentum and Energy.
to which is added—
"A Discussion of the Alleged Inventions of the very eminent Edward Sommerset, Sixth Earl and Second Marquis of Worcester, and Jean Ernest Eli-Bessler Orffyreus.
Also—
"A Discussion by the Author of the 'Doctrine of Conservation of Energy, and Its Relation to the Possibility of Perpetual Motion.'"
And—
"A Discussion by the Author of 'Will Perpetual Motion Ever Be Accomplished?'"