The Soul of John Brown

Europe—Whither Bound? / Being Letters of Travel from the Capitals of Europe in the Year 1921

A Tramp's Sketches

The Challenge of the Dead A vision of the war and the life of the common soldier in France, seen two years afterwards between August and November, 1920

Europe—Whither Bound

With Poor Immigrants in America

In Quest of El Dorado

A Tramp's Sketches

The Way of Martha and the Way of Mary

Through Russian Central Asia

Russia in 1916