COLSON, Nathaniel. The Mariners New Kalender. Containing the principles of arithmetick and geometry; with the extraction of the square and cube roots. Also rules for finding the prime, epact, moon's age, time of high water, with tables for the same, London: for Thomas Page and William Mount, 1729, 4°, new edition, woodcut illustrations (dampstained and soiled), later boards (rubbed), bookplate of Mark Dineley. With Andrew Wakely The Mariner's Compass Rectified (London, 1761, lacking volvelle on F8). (2)