TechnologyJanuary 4, 1913
An Interesting Static Electric Motor
Stories by H. B. Dailey
The SciencesFebruary 25, 1911
An Easily Made Leyden Jar Charger, How Clouds Get Their Fringes, and more
The SciencesNovember 19, 1910
Water-Jet Pump for Home Use, Method of Duplicating a Tapered Spindle, and more
The SciencesFebruary 10, 1906
A Convenient Hydrogen Generator
TechnologyJune 25, 1898
A Beautiful Experiment