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Nautical Publications
In recent years tidal theory has developed very rapidly and methods of analysis and predictions of tides have been improved to such a degree that the need has arisen for an exposition of these modern developments in a form suitable for instruction as well as general reading. This Manual has therefore been compiled with a view to the exposition fo these matters, particularly for the benefit of hydrographic surveyors and naval officers in general. The adoption of the Admiralty method of predicting tides and tidal streams has made the need for such a book even more evident, and the authors of that method were therefore requested to prepare a general Manual, which would be intermediate in character between books too elementary for service needs and books which are too mathematical for officers with normal attainments in mathematics.