360 ON THE TIDES OE THE AECTIC SEAS— PART YI. PORT KENNEDY. 
a quantity equal to <p, which, is half the difference between the maximum and minimum 
values of B. Hence we find 
h m s 
Maximum value of B = 25 7 22^ 
Minimum ,, „ = 22 54 0 
2<p = 2 13 221 
2<p = 33° 20i'. 
^=-.sin2<p = 0-549 (27) 
Collecting together the foregoing results, we have the following 
Constants of the Semidiurnal Tide at Port Kennedy in July 1859. 
Lunar Semidiurnal Tide. 
True Lunitidal Interval 
23 h 48 m I s . 
Ratio of^r, 
tO -412 (Heights). 
(0-549 (Times). 
(Uncorrected for Declination or Parallax.) 
