Note 212 — CHAP. XIV. Of Change of Species.

’Tis certain that Turneps, when they stand for Seed, suck and impoverish the Ground exceedingly: For though they are of a cold Constitution, and consequently consume less Food than Plants of an hotter Constitution, and of the same Bulk; yet these Seed-turneps being of so vast a Bulk, as sometimes Eighty Quarters of their Roots grow on an Acre, and their Stalks have been measured Seven Feet high, and their Roots having continued at near their full Bigness for about Ten Months together, and then carried off, they drain the Land more than a Crop of other Vegetables of a less Bulk, and an hotter Constitution, and which live a less time; or than Wheat, which, though it lives as long, is very small, except in the Four last Months.