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How to Modify a Common Plough for Proper Tillage
Jethro Tull
It is a lamentable fact that most men who work the land do so by blind tradition. The common plough is a clumsy instrument,...
How to Modify a Common Plough for Proper Tillage
Jethro Tull
It is a lamentable fact that most men who work the land do so by blind tradition. The common plough is a clumsy instrument,...