composition of two elliptic tides with speeds y-<r-w and y -<r + w. The genesis of this compound.-.! 

 tide is explained in the Report to the British Association for 1883. 



18 20 



MAY 29 



22 NOON 



MAY 30'-" 



Fig, 



I accordingly thought it worth while to evaluate the MI tide for each of the twelve months under 

 reduction. The results come out sufficiently discordant to render it impossible to assign any definite value 

 to the tide, yet there appears to be some sort of method in the phases. Thus the phases for the twelve 

 months come out for 1902, 9, -3, -45, 6", -32, 70, 12', and for 1903, 6, -159, -179' 

 -42, -10. 

 Two of the phases, those for the 9th and 10th months, are very discordant, but for these months the 



C 



