The Library of Work and Play_ Working in Metals

The Library of Work and Play_ Mechanics, Indoors and Out

The Library of Work and Play_ Gardening and Farming.

A Critical Examination of the Position of Mr. Darwin's Work, "On the Origin of Species," in Relation to the Complete Theory of the Causes of the Phenomena of Organic Nature Lecture VI. (of VI.), "Lectures to Working Men", at the Museum of Practical Geolo