PREVENT LIFE-WASTE— UPBUILD NATIONAL VITALITY
Directors Hon. William H. Taft Henry H. Bowman Francis R. Cooley Robert W. de Forest Irving Fisher Eugene Lyman Fisk Harold A. Ley Elmer E. Rittenhouse Charles H. Sabin Frank A. Vanderlip	HON. WILLIAM H. TAFT Chairman, Board of Directors ELMER E. RITTENHOUSE President GEN. W. C. GORGAS Consultant, Sanitation PROF. IRVING FISHER Chairman, Hygiene Reference Board EUGENE L. FISK, M.D. Director of Hygiene HAROLD A. LEY Vice-president and Treasurer JAMES D. LENNEHAN Secretary

The Institute was established by a group of scientists, publicists, andbusiness men, who desired to provide a self-supporting centralinstitution of national scope devoted to the science of diseaseprevention—a responsible and authoritative source from which the publicmight draw knowledge and inspiration in the great war of civilizationagainst needless sickness and premature death.

LIFE EXTENSION INSTITUTE, Inc.
25 WEST 45th STREET :: NEW YORK CITY

HOW TO LIVE

COPYRIGHT MOFFETT STUDIO

Hon. William Howard Taft
Chairman, Board of Directors Life Extension Institute, Inc.

HOW TO LIVE

RULES FOR HEALTHFUL LIVINGBASED ON MODERN SCIENCE

AUTHORIZED BY AND PREPARED IN COLLABORATION
WITH THE HYGIENE REFERENCE BOARD OF THE
LIFE EXTENSION INSTITUTE, INC.

BY
IRVING FISHER, Chairman,
PROFESSOR OF POLITICAL ECONOMY, YALE UNIVERSITY
AND
EUGENE LYMAN FISK, M.D.,
DIRECTOR OF HYGIENE OF THE INSTITUTE

NINTH EDITION

FUNK & WAGNALLS COMPANY
NEW YORK AND LONDON
1916

Copyright, 1915, by
FUNK & WAGNALLS COMPANY
(Printed in the United States of America.)

Published, October, 1915
Second Edition, November, 1915
Third Edition, December, 1915
Fourth Edition, March, 1916
Fifth Edition, April, 1916
Sixth Edition, May, 1916
Seventh Edition, June, 1916
Eighth Revised Edition, September, 1916
Ninth Edition, September, 1