The SciencesJune 29, 1918
Locating Submarine Faults
Stories by Otto Klotz
The SciencesJune 22, 1918
The Earth and Population
The SciencesMarch 9, 1918
The Rainbow
The SciencesJuly 15, 1916
Aurora
Earth Currents and Magnetic Disturbances
The SciencesMarch 13, 1915
Deformation of the Earth by the Moon
Methods of Solving the Problem and Its Difficulties