TIDAL OBSERVATIONS. 



289 



the long-period tides to be satisfactory, although the quantities of some are 

 within reasonable limits. The values for rj, as usual, show an undoubtedly 

 genuine annual tide of about three inches with its maximum about the end 

 of October or beginning of November, which agrees with the time given for 

 other English ports. Of the other long-period tides, the synodic fortnightly 

 [2((r — t])'] gives a fair agreement between the values deduced from the separate 

 j'ears. 



Results of Hourly Tide-observations taken at Port Leopold, Arctic Archi- 

 pelago, by Sir James Clark Ross, from 1848, Nov. 1, to 1849, July 31. 

 (Lat. 74° N., Long. 91° W.) 



Speed. . , 

 B. 



I, or inclination of moon's orbit to earth's equator, — i8°7. 



S 

 2(y-r,) 

 ft. 



o'ojoS 

 26°-5s 

 o'6434 

 28°-78 

 o'oo65 

 256°-84 



M 



2(y-<T) 



ft. 



o'044i 

 269°-i9 



2-0736 

 338°-88 



o'oi6o 

 203°'o3 



L 



(2y— (T- 

 ft. 



N 



(27— 3(T+w) 



ft. 



i89°-i8 



0-4345 

 3o6°-36 



Speed 



E, 



O 



(y-2c7) 



0-3632 



69°-64 



P 



o-2i6i 



i27°-55 



Coincidence of phase of S and M. 

 Coincidence of phase of P and O. 

 Coincidence of phase of M and N. 

 Opposition of phase of L and M . 



days. 

 = 2 



K 



(2y) 

 ft. 

 07997 



309°-62 

 o'i325 

 34°-99 



_ ,.?!', I > After New or Full Moon. 



— 2 37S^j 



= 2-tiQ2 I ^^^^ moon's perigees. 



Results of Hourly Tide-observations taken at Beechey Island, Erebus Ray, 

 Arctic Archipelago, by Captain PuUen, for 119 days, commencing 1858, 

 Nov. 2. (Lat. 74° 43' N., Long. 91° 54' W.) 



I, or inclination of moon's orbit to earth's equator, = 28°-o. 



1876 



days. 



Coincidence of phase of S and M = i-g6oi 1 , », „ -,,„,, 



Coincidence of phase of P and O = 2-3080 | ^•*^'" ^^^ <"• ^"U Moon. 



Coincidence of phase of M and N = 2-4807 1 .,., 



Opposition of phase of L and M = 3-2981 / ^'*«i' °^^o" ^ perigees. 



V 



