ARCTIC SEAS. — PART VI. PORT KENNEDY. 
359 
Combining (23) and (24) we find, after a few reductions, 
tan 2 B= v/M " 2 — s " 2 sin 2i m + S" cos 2 i m / 2 5 ) 
^/M" 2 — S" 2 cos 2i m — S" sin 2 i m 
If we assume 
g n 
sin 2<p, 
the equation (25) will reduce to the following: — 
tan 2B=tan 2 (<p+?' m ), 
or 
B =<p+v, (26) 
The Maximum and Minimum values of B, or of the Lunitidal Interval, are found 
from Tables VIII. and IX., and are as follows : — 
Maximum Values of Lunitidal Interval. 
h 
m 
s 
d 
h 
m 
High Water 
25 
5 
0 
at 
14 
1 
0 
55 
.24 
46 
0 
„ 
26 
21 
0 
Low Water 
25 
58 
0 
55 
11 
5 
30 
24 
35 
0 
55 
27 
17 
0 
Half-Flood 
25 
57 
0 
55 
11 
21 
o 
O 
55 
24 
28 
0 
55 
27 
7 
34 
Half-Ebb . 
25 
9 
0 
55 
12 
2 
37 
55 
25 
1 
0 
55 
27 
14 
21 
Mean=25 
7 
22— 
Minimum Values of Lunitidal Interval. 
h 
m 
s 
d 
h 
m 
High Water 
23 
0 
0 
at 
6 
17 
0 
„ 
22 
55 
0 
25 
7 
0 
Low Water 
....... 23 
12 
0 
55 
6 
11 
0 
55 
22 
38 
0 
55 
24 
12 
0 
Half-Flood 
23 
16 
0 
55 
6 
1 
46 
„ 
22 
58 
0 
55 
22 
1 
28 
Half-Ebb . 
22 
12 
0 
55 
6 
7 
51 
55 • 
23 
5 
0 
55 
21 
19 
23 
Mean =22 
54 
0 
From equation (26) we see that the value of B ranges above and below that of i m by 
