EDITED BY
SIR HENRY E. ROSCOE, D.C.L., F.R.S.

John Dalton and the Rise of Modern Chemistry.
By Sir Henry E. Roscoe, F.R.S.

Major Rennell, F.R.S., and the Rise of English Geography.
By Sir Clements R. Markham, C.B., F.R.S., President of the Royal Geographical Society.

Justus von Liebig: his Life and Work (1803–1873).
By W.A. Shenstone, F.I.C., Lecturer on Chemistry in Clifton College.

The Herschels and Modern Astronomy.
By Agnes M. Clerke, Author of “A Popular History of Astronomy during the 19th Century,” &c.

Charles Lyell and Modern Geology.
By Rev. Professor T.G. Bonney, F.R.S.

James Clerk Maxwell and Modern Physics.
By R.T. Glazebrook, F.R.S., Fellow of Trinity College, Cambridge.

Humphry Davy, Poet and Philosopher. By T.E. Thorpe, LL.D., F.R.S., Principal Chemist of the Government Laboratories.

In Preparation.

Michael Faraday: his Life and Work.
By Professor Silvanus P. Thompson, F.R.S.

Pasteur: his Life and Work.
By M. Armand Ruffer, M.D., Director of the British Institute of Preventive Medicine.

Charles Darwin and the Origin of Species.
By Edward B. Poulton, M.A., F.R.S., Hope Professor of Zoology in the University of Oxford.

Hermann von Helmholtz.
By A.W. RÜcker, F.R.S., Professor of Physics in the Royal College of Science, London.

MACMILLAN & CO., Limited, New York.