The SciencesMarch 10, 1917
The Earth's Magnetism
The Discoveries of Halley's Expedition and Recent Investigations
Stories by L. A. Bauer
The SciencesJuly 8, 1911
Ocean Maǵnetic Work—II
Some of its Problems
EngineeringJuly 1, 1911
Ocean Maǵnetic Work
Some of its Problems
The SciencesMarch 19, 1910
Instruments and Methods of the Ocean Magnetic Work of the Carnegie Institution of Washington
The General Principles Followed.
The SciencesAugust 8, 1903
The Magnetic Observatories of the United States Coast and Geodetic Survey in Operation on July 1, 1902