4Q,21 As) Wroth, Lawrence Counselman, 1884- F Some American contributions to the art of navigation, 1519-1802, Providence, Associates of the John Carter Brown Library, 1947, 41 p, maps (1 fold.) facsims, 25 om, “Read before the Massachusetts Historical Society on April 11, 1946,,, Here separately published,,,in advance of its scheduled ap- pearance in volume 68 of the society's Pro=
ceedings,"
NAVIGATION—-EARLY WORKS TO 1800, |