TIDAL OBSERVATIONS. 287 



Solax" annual tide (elliptic and meteorological) 



Solar semiannual tide (declinational and meteorological) .. 



Limar monthlj tide (elliptic) 



Lunar fortnightly tide (declinational) 



Lunisolar fortnightly tide (synodic) 



The results of three years' tide-observations taken at "West Hartlepool, 

 England (Lat. 54° 41' N., Long. 1° 12' W.), by a self-registering tide-gaiige, 

 from 1858, July 1, to 1801, July 5 :— 



Year ... 1858-59. 1859-GO. 18G0-61. 



