THE late Admiral Wharton's “Hydrographical Surveying,” which has been for so many years a standard work and one of the best books for surveyors that has ever been published, has now been brought up to ...

THE recently published “Mean Values of Observations from Danish Light-Vessels” is a pamphlet issued as a special reprint from the Nautical Meteorological Annual, 1932, of the Danish Meteorological ...