The Physical Papers of Henry Augustus Rowland, Johns Hopkins University, 1876-1901: Collected for Publication by a Committee of the Faculty of the University

On the Mechanical Equivalent of Heat: With Subsidiary Researches on the Variation of the Mercurial from the Air Thermometer, and on the Variation of the Specific Heat of Water

The Path of Life

Preliminary Table of Solar Spectrum Wave-lengths

Elements of Physics