Although these Works are not specially designed for the instruction of beginners, still, as they are intended to address the non-scientific public, they are, as far as possible, explanatory in character, and free from technicalities; the object of each author being to bring his subject as near as he can to the general reader.

The Volumes already Published are:—

Third Edition.

THE FORMS OF WATER IN RAIN AND RIVERS, ICE AND GLACIERS. By J. Tyndall, LL.D., F.R.S. With 26 Illustrations. Crown 8vo. 5s.

“One of Professor Tyndall’s best scientific treatises.”—Standard.

“With the clearness and brilliancy of language which have won for him his fame, he considers the subject of ice, snow, and glaciers.”—Morning Post.

“Before starting for Switzerland next summer every one should study ‘The forms of water.’”—Globe.

“Eloquent and instructive in an eminent degree.”—British Quarterly.

Second Edition.

PHYSICS AND POLITICS; or, Thoughts on the Application of the Principles of “Natural Selection” and “Inheritance” to Political Society. By Walter Bagehot. Crown 8vo. 4s.