114 The Rev. Dr. Haughton on the Tides of the Arctic Seas. 



Aggregate values of all disturb- 

 ances exceeding 1'4 in the 

 several years from 1859 to 

 1865 inclusive. 



Ratios of disturbance in the 

 several years from 1859 to 

 1864 inclusive to the mean 

 aggregate disturbance in the 

 six years taken as unity. 



Years. 



AggTegate 

 values. 



Years. 



Ratios. 



1859 

 1860 

 1861 

 1862 

 1863 

 1864 

 1865 



1532-1 

 1421-6 



951-8 

 1240-5 



691-1 ' 



595-9 



906-8 



1859 

 1860 

 1861 

 1862 

 1863 

 1864 



1-43 

 1-33 



0- 89 



1- 16 

 0-64 

 0-56 



The ratio of the maximum in 

 1859 to the minimum in 1864 

 is as 2-6 to 1. 



IV. " On the Tides of the Arctic Seas.— Part III. On the Semi- 

 diurnal Tides of Frederiksdal, near Cape Farewell, in Greenland. 

 By the Rev. S. Haughton, F.R.S. Received April 12, 1866. 



(Abstract.) 



The observations discussed in this paper by the Rev. Dr. Haughton 

 were made for him (in 1863-64), at the request of Admiral Irminger of 

 the Royal Danish Navy, by Missionary Asboe, at Frederiksdal, near Cape 

 Farewell in Greenland. 



They proved amply sufficient for the complete discussion of the semi- 

 diurnal tide of that interesting locality ; and the following results were 

 obtained : — 



1. Eccentricity of lunar orbit 0*06786 



2. Mass of earth as compared with mass of moon. . . . 64*638 



3. Depth of Atlantic deduced from heights 10*03 miles, 



4. Depth of Atlantic deduced from times 3*30 miles. 



OCT. 8, 



