Harmonic tidal constants for certain Australian and Chinese ports

The tidal observations made at these five ports have been reduced by the aid of certain sums placed at my service by the Government Grant Committee of the Royal Society, and I am indebted to Professor G. H. Darwin for the loan of the apparatus he devised to facilitate the summation of hourly tidal heights, and to the; Hydrographer, Admi­ral Sir W. J. L. Wharton, who supplied me with the observations. The whole of the observations were reduced by the methods devised by Professor G. H. Darwin.*