GEOGRAPHY.
By Dr. JOHN SCOTT KELTIE, F.R.G.S., F.S.S., F.R.S., and O. J. R. HOWARTH, M.A.
GEOLOGY.
By HORACE B. WOODWARD, F.R.S., F.G.S.; late Assistant-Director of Geological Survey of England and Wales.
BIOLOGY.
By Professor L. C. MIALL, F.R.S., formerly Professor of Biology, Leeds University, 1876–1907; Fullerian Professor, Royal Institute, 1904–5.
ANTHROPOLOGY.
By A. C. HADDON, M.A., D.Sc., F.R.S.
PSYCHOLOGY. In two vols.
By Professor J. MARK BALDWIN.