All Things Change: Nature's rhythms, from sprouting seeds to shining stars

Political Sketches; Twelve Chapters on the Struggles of the Age

The Pleasures and Duties

The Planting of the Cross

Plain Mary Smith; a Romance of Red Saunders

Pipes From Prairie-Land, and Other Places

Pilgrimages to the Spas in Pursuit of Health and Recreation; With an Inquiry Into the Comparative Me

Philological Proofs of the Original Unity and Recent Origin of the Human Race

The Philanthropic Results of the war in America: Collected From Official and Other Authentic Source