The SciencesOctober 29, 1910
Cosmical Evolution
A New Theory
Stories by T. J. J. See
The SciencesMarch 26, 1910
The Origin of the Lunar Craters
A Consideration of the Impact Theory
The SciencesJanuary 15, 1910
Venus and its Problems
Its Rotation and its Possible Life
The SciencesSeptember 18, 1909
The Origin of the Satellites
A New Theory
The SciencesDecember 7, 1907
The Age of the Earth's Consolidation
How Scientists Estimate Periods of Time
The SciencesFebruary 9, 1907
Significance of the Spiral Nebulæ. A Criticism of the Theory that they are the Beginnings of Stars
The SciencesMay 18, 1895
The Services of Nathaniel Bowditch to American Astronomy
The SciencesFebruary 23, 1895
The Study of Physical Astronomy—Suggestions to Students and Amateurs