Note 5 — Philippine Ships and Shipbuilding

That is, the cubit; a measure of length equal to the distance from the elbow to the end of the middle finger. The codo real, or royal cubit, is three fingers longer than the ordinary codo. The geometrical codo is equivalent to 418 mm., and the codo real to 574 mm. See Velásquez: New Dictionary of Spanish language (New York, 1902).