Obituary Notices: Admiral Sir Mostyn Field (1855-1950), Commodore H. O. Ravn (1868-1949), Professor Martin Knudsen (1871-1949) PDF
Luang Joldhan Brudhikrai Development of Hydrographic Work in Siam from the beginning up to the present PDF
Silvio Ballarin Geometric Properties of Position Lines in Hyperbolic Navigation and their Layout on the Reference Ellipsoid PDF
Regulations prescribed by the "Service Hydrographique” of the French Navy for the Carrying-out of Soundings to be used for further Improvement of the Chart PDF
