The SciencesNovember 10, 1917
Radio-Active Halos
Minute Rock Markings of Importance to our Views on the Physical History of the Earth
Stories by J. Joly
The SciencesAugust 11, 1917
Methods of Estimating Distances at Sea in Fog or Thick Weather
The SciencesJanuary 30, 1915
The Birth-Time of the World
Methods of Determining Its Age
The SciencesMarch 1, 1913
Halos in Minerals
Markings Due to Radium in Rocks, and their Significance
The SciencesAugust 18, 1894
On Color Photography