DR. ALFRED RUSSEL WALLACE'S NEW BOOK.
MAN'S PLACE IN THE UNIVERSE. A study of the results of scientific research in relation to the unity or plurality of worlds. By Alfred Russel Wallace, LL.D., D.C.I., F.R.S., author of “Natural Selection,” “Darwinism,” etc., etc. With Diagrams. Demy 8vo, 12s. 6d. net.
This volume is an amplification and extension of the much-discussed article contributed by Dr. Wallace to the Fortnightly Review for March 1903, and presents the whole subject in a more complete and systematic manner, besides containing many new and forcible arguments which a more careful consideration of the whole problem has suggested.
In the course of the work the various astronomical and other criticisms of the article are considered and replied to.
A NEW THEORY OF GRAVITATION.
AETHER AND GRAVITATION. By W. G. Hooper, F.S.S. With Diagrams. Demy 8vo, 12s. 6d. net.
This work seeks to offer an acceptable solution of the greatest scientific problem that has puzzled scientists for the past 200 years. Ever since the discovery of universal gravitation by Sir Isaac Newton, the question has arisen, over and over again, as to what is the physical cause of the attraction of gravitation. Is it due, as Newton himself suggested, to the properties and qualities of the universal aether, or is it due to some still unknown and undiscovered medium?
By the theory propounded in this work, the author has for the first time brought aetherial physics into harmony with all observation and experiments; so that the inertia, the density, and the elasticity of the aether are brought into harmony with all experience by philosophical reasoning based on Newton's Rules of Philosophy.
LIFE AND TOPOGRAPHY OF DICKENS.
THE REAL DICKENS LAND. With an outline of Charles Dickens's life. By H. Snowden Ward and Catharine Ward, authors of “Shakespeare's Town and Times.” With a Steel Plate Portrait of Dickens, Three Photogravures, and nearly 300 full-page and other Illustrations. Crown 4to, 10s. 6d. net.