Note 420 — TREATISE OF NAVIGATION OF THE CHEVALIER ANTONY PIGAFETTA.
Henry Edward John Stanley Stanley translation
Supposing that the surface of the globe under the equator were half land and half sea, and then giving to each league three and a half miles, we should have 22,050 miles for the circumference of the earth: a measure very little differing from that which results from giving to each degree at the equator sixty Italian miles, by which the circumference is 21,600 miles. Note, Milan edition.