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XXII. On the Tides of the Arctic Seas. 



By the Rev. Samuel Haughton, M.T)., F.B.S., Fellow of Trinity College, Dublin. 



Part III. On the Semidiurnal Tides of Frederiksdal, near Cape Farewell, in Greenland. 



Eeceivod April 12,— Read April 26, 1866. 



I AM indebted, for the opportunity of laying the following observations and their dis- 

 cussion before the Royal Society, to the kindness and courtesy of Chamberlain General 

 Adjutant Ieminger, of the Royal Danish Navy, who undertook (in 1862) to have Tidal 

 observations made by the Missionaries and Government officers at certain stations on 

 the coast of Greenland, for the purpose of completing the observations, on the Tides of 

 the Arctic Seas, made by several officers of Her Majesty's Navy during the search for 

 Sir John Feanklin ; some of which I have already laid before the Society, in Parts I. 

 and II. of these papers ; of others I hope to be able to complete the discussion, and to 

 forward them in due course to the Royal Society. 



The observations recorded and discussed in the present paper were made in 1863-64, 

 at Frederiksdal, near Cape Farewell, by Missionary Asboe, to whom and to Admiral 

 Ibminger I beg leave to return my warmest thanks for their uniform courtesy and 

 attention to a request proceeding from a total stranger. 



Frederiksdal is situated in the South of Greenland, about 37 miles W. and by N. from 

 Cape Farewell, and is the nearest station to this Cape at which tidal observations can 

 be made. It is in lat. 60° N., and long. 45° W. from Greenwich. 



The observations were made on one High and one Low water each day, from August 

 1863 to August 1864, with occasional interruptions caused by ice and by more pressing 

 public duties. They have proved to be abundantly sufficient for the determination of 

 the laws of the Semidiurnal Tides, and of the important inferences deducible from them. 



My first step in the discussion was to form the following Tables, which contain the 

 materials used subsequently in the paper. 



MDCCCLXVl. 4 T 



