Popular scientific lectures

A Complete Classified List of Books, Pamphlets, Etc., Published Exclusively by The Open Court Publishing Co.

How to tell the Birds from the Flowers, and other Wood-cuts A Revised Manual of Flornithology for Beginners

The Author's Printing and Publishing Assistant Comprising Explanations of the Process of Printing; Preparation and Calculation of Manuscripts; Choice of Paper, Type, Binding, Illustrations, Publishing, Advertising, &c.; with an Exemplification and Descrip

The War and Unity Being Lectures Delivered At The Local Lectures Summer Meeting Of The University Of Cambridge, 1918

Lectures on Popular and Scientific Subjects