A. P. Niblack Co-operation of the International Hydrographic Bureau with other International Organisations PDF (English)
The Flow of Water through the Straits of Dover as gauged by continuous current metre observations at the Varne Light Vessel PDF (English)
United States of America, Tide Stations where three or more years of observations have been obtained (1927) PDF (English)
Harvey L. Curtis, Robert C. Duncan A method for the accurate measurement of short-time intervals PDF (English)