THE HYDROGRAPHIC YEAR 1930

Abstract

For some years past the work of the Hydrographic Service of H.M. Navy afloat has been carried out by eight of H.M. Surveying Vessels. These ships, of which four are employed abroad and four in home waters, work at sea for about eight months in the year and are refitted during the remaining four months, usually during the winter or bad-weather season. Whilst the ships are being refitted for further service the officers are employed in drawing the fair charts of the season's work and in preparing Sailing Directions and other work in connection with the Survey.