DEGENERATION.
NATURE SERIES.
DEGENERATION.
A
CHAPTER IN DARWINISM.
BY
PROFESSOR E. RAY LANKESTER, F.R.S.,
FELLOW OF EXETER COLLEGE, OXFORD.
London:
MACMILLAN AND CO.
1880.
The Right of Translation and Reproduction is Reserved
LONDON:
R. CLAY, SONS, AND TAYLOR,
BREAD STREET HILL, E. C.