ON HARMONIC ANALYSIS OF TIDAL OBSERVATIONS. 341 



1886. G. H. Darwin, 'Instructions for the Reduction of Hourly Tidal Observations 

 . . .' Admiralty Scientific Miuiual, 'Tides.' [Sci. Papers, v. 1, pp. 122-139.] 



1889. G. H. Darwin, 'Second Series of Results of the Harmonic Analysis of Tidal 

 Observations,' Proc. Roy. Soc, v. 45, pp. 55(1-611. 



1890. G. H. Darwin, ' On the Harmonic Analj'sis of Tidal Observations of High and 

 Low Water,' Proc. Roy. Soc, v. 48, pp. 278-340. [Sci. Papers, v. 1, pp. 157-215 ] 



1892. G. H. Darwin, ' On an Apparatus for Facilitating the Reduction of Tidal 

 Observations,' Proc. Roy. Soc, v. 52, pp. 345-389. [Sci. Papers, v. 1, 

 pp. 216-257.] 



1902. T. Wright, ' Harmonic Tidal Constants for certain Australian and Chinese 

 Ports,' Proc. Roy. Soc (A), v. 71, pp. 91-96. 



1904. J. N. Shoolbred, ' The Tidal Regime of the River Mer.sey,' Rrit. Assoc. Report. 



1906. J. N. Shoolbred, ' The Tidal Regime of the River Mersey . . ,' Proc. Roy. 

 Soc. (A), V. 78, pp. 161-166. 



1907. Sir G. H. Darwin, ' On the Antarctic Tidal Observations of the " Discovery," ' 

 Sci. Papers, v. 1, pp. 372-388. [JVat. Antarctic Exp. 1901-1904, Phys. Ohs., 

 pp. 3-12.] 



1908. F. J. Selby and J. de G. Hunter, ' Tidal Observations of the ' ' Scotia," 1 002- 

 1904,' Nat. Antarctic Exp., 1901-1904, Phys. Ohs., pp. 13-14. 



1909. T. Wright, 'Harmonic Tidal Constants for certain Chinese and New 

 Zealand Ports,' Proc Roy. Soc. (A), v. 83, pp. 127-130. 



1910. Sir G. H. Darwin, ' The Tidal Observations of the British Antarctic Expedition 

 1907,' Proc. Roy. Soc (A), v. 84, pp. 403-422, 



1911. F. J. Selby, 'Analysis of Tidal Records for Brisbane for the year 190S,' Proc 

 Roy. Soc. (A), V. 86, pp. 64-66. 



1913. B. Roberts, ' Re-reduction of Dover Tidal Observations for 1883-4, &c.,' Proc. 

 Roy. Soc (A), v. 88, pp. 230-233. 



1914. D'Arcy W. Thompson, ' On Mean Sea Level and its Fluctuations,' Fishery Bd. 

 Scotland, Sci. Invest, iv. 



British Work on Harmonic Analysis of Tidal Currents. 



The work has all been done in connection with the ' Conseil Permanent Inter- 

 national pour I'Exploration de la Mer,' and the results published in the Bulletin 

 Hydrographiqiie for 1911, 1912, 1913. 



Harmonic constants are given for the northerly and easterly components of the 

 current and also for the current-ellipses, at various depths at each station. 



The English observations have been made on steamships and lightships under 

 instructions from the Board of Agriculture and Fisheries. The Scottish observations 

 were taken on board the ' Goldseeker ' by the ' North Sea Investigation Committee,' 

 under instructions from Prof. D'Arcy Thompson. 



Indian Work on Harmonic Analysis of Tidal Heights. 



The work has all been done by the ' Survey of India,' a Government institution. 

 The results are published in the annual volumes of the ' Records of the Survey of 

 India'; prior to 1908 these volumes were called ' Extracts from Narrative Reports 

 of the Survey of India.' 



In 1901, vol. 16 of the 'Great Trigonometrical Survey of India' was published, 

 being written by Mr. J. Eccles. It deals exclusively with tidal work and gives full 

 accounts of methods used, work done and results obtained up to 1892. 



Canadian Work on Harmonic Analysis of Tidal Heights. 



A few results are published in the annual ' Eeports of Progress' of the 'Survey 

 of Tides and Currents in Canadian Waters.' 



Australian Work on Harmonic Analysis of Tidal Heights. 



Bibliography. 



1892. R. W. Chapman and A. Inqlis, ' The Tides of the Coast of South Australia, 



iust. Assoc. Report, iv., pp. 230-232. 

 1894 . R. W. Chapman and A. Inglis, ' The Tides of Port Adelaide,' Awst. Assoc. 



Report, V. 



