THE WHYS AND WHEREFORES OF NAVIGATION
THE
WHYS AND WHEREFORES
OF
NAVIGATION
BY
GERSHOM BRADFORD 2d
Navigating Officer and Senior Instructor New York State Nautical
Schoolship “Newport,” Late Nautical Expert,
Hydrographic Office, U. S. N.
ILLUSTRATED
NEW YORK
D. VAN NOSTRAND COMPANY
25 Park Place
1918