The Prolongation of Life: Optimistic Studies

by Elie Metchnikoff

THE PROLONGATION OF LIFE

OPTIMISTIC STUDIES

BY

ÉLIE METCHNIKOFF

SUB-DIRECTOR OF THE PASTEUR INSTITUTE, PARIS

THE ENGLISH TRANSLATION

EDITED BY

P. CHALMERS MITCHELL
M.A., D.SC. OXON., HON. LL.D., F.R.S.
Secretary of the Zoological Society of London; Corresponding Member
of the Academy of Natural Sciences of Philadelphia

G. P. PUTNAM’S SONS
NEW YORK & LONDON
The Knickerbocker Press
1908

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