Chart for Jan. includes oceanography conference proceedings, chart for Mar. includes map on path of lunar eclipse, and chart for Dec. includes data on drift of released bottles in Atlantic Ocean, by ship.
Monthly weather chart of Indian Ocean showing isotherms and isobars, shipping routes, fog occurrence, radio telegraph stations, storm tracks and dates, shipwrecks, drift of derelict ships, and prevailing winds and currents, by ocean. Charts also include narrative review of weather conditions, and key to weather symbols and other information for navigators.