TORONTO
Jethro Tull
Founder of the Principles of Dry-Farming. 1674-1740.
MAKERS OF MODERN AGRICULTURE
BY
WILLIAM MACDONALD, D.Sc.
Editor, "Agricultural Journal," Union Department of Agriculture,
South Africa; and Corresponding Secretary for the
International Dry-Farming Congress
MACMILLAN AND CO., LIMITED
ST. MARTIN'S STREET, LONDON
1913