Note 203 — FOURTH VOYAGE OF COLUMBUS.
Richard Henry Major translation
The “line” of Columbus implies fifteen degrees, or one hour of longitude; and the twelve lines which describe the distance of Catigara from the meridian of Ptolemy, equal one hundred and eighty degrees. Marinus of Tyre, reckoned two hundred and twenty-five degrees to the same space, which is equivalent to the fifteen lines stated by Columbus.