Note 193 — CHAP. XII. Of St. Foin.

For large St. Foin, being single, has large Roots, and very long, which probably descend Twenty Feet deep: Now, if we allow Four or Five Inches the Depth of the Staple, to afford a Supply equal to Two Feet below it, taking the lower Nineteen Feet Seven Inches together, upon this Computation, the Part below the Staple gives the St. Foin about Nine Parts in Ten of its Sustenance.