The SciencesSeptember 5, 1914
Exploding Mines by Wireless Telegraphy
Stories by Charles Forbes
The SciencesMay 2, 1914
Exploding Mines by Wireless Telegraphy, A New Experiment to Determine the Earth's Rigidity
The SciencesOctober 7, 1911
Why the Earth Appears Concave
An Optical Illusion Observed from Balloons
TechnologySeptember 17, 1910
Foucault's Pendulum Electrically Propelled
The SciencesFebruary 8, 1908
Foucault's Pendulum Experiment Repeated at Columbia University