The SciencesFebruary 8, 1908
A New Ball Worm Gear
A Device for the Direct Driving of Automobiles
Stories by W. H. Booth
The SciencesJanuary 25, 1908
Safeguarding Machinery
The SciencesJanuary 11, 1908
The Gas-Engine Cycle
A Consideration of the Two and the Four Cycle Motor