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Jethro Tull (agriculturist) - Wikipedia
Jethro Tull and the Invention of the Seed Drill - ThoughtCo
Jethro Tull’s seed drill | All About History
The pre-history of soil science: Jethro Tull, the invention of the …
Jethro Tull’s Seed Drill and the Agricultural Revolution
Agricultural Revolution, Seed Drill & Inventor - Britannica
Jethro Tull's Seed Drill - YouTube
BBC - History - Historic Figures: Jethro Tull (1674 - 1741)
Jethro Tull - ASME
JETHERO TULL AND THE INVENTION OF THE SEED DRILL