TRACTOR PRINCIPLES

THE ACTION, MECHANISM, HANDLING, CARE, MAINTENANCE AND REPAIR OF THE GAS ENGINE TRACTOR

BY

ROGER B. WHITMAN

AUTHOR OF “MOTOR CAR PRINCIPLES,” “GAS ENGINE PRINCIPLES,” “MOTOR-CYCLE PRINCIPLES,” ETC.

FULLY ILLUSTRATED

D. APPLETON AND COMPANY NEW YORKLONDON 1920

COPYRIGHT, 1920, BY D. APPLETON AND COMPANY

PRINTED IN THE UNITED STATES OF AMERICA