ARCTIC SEAS. — PART VI. PORT KENNEDY. 
349 
or, Age of Lunar Diurnal Tide, d h m 
= 1 4 14£ (4) 
We now proceed to determine the value of the Solar Coefficient S f , which may be 
readily found as follows : — 
We may throw the expression (2) for the Diurnal Tide into the following form, 
writing 
S"=S' sin 2<r, 
M"=M' sin 2j&, 
D =A cos (s — B), ........ (5) 
where 
A=Vs " 2 + M ,/2 + 2S"M" cos ( (6) 
-p, S" sin i s + M 7 ' sin (s — m + i m ) . 
S" cos i s -f- M" cos (s — m + i m ) ' ' 
The Solar Diurnal Tide will occur alone when M"=0 or ^ = 0. 
The values of A are given from Table I., and are as follows, in Table V. 
Table V. — Heights of High and Low Water of Diurnal Tide at Port Kennedy 
in July 1859. 
Time. 
High Water. 
Low Water. 
Time . 
High 
Water. 
Low Water. 
h 
m 
ft. in. 
ft. 
in. 
h 
m 
ft 
. in. 
ft. 
in. 1 
July 5. 
17 
0 
1 
9 \ 
July 17. 
4 
0 
2 
01 
6. 
5 
0 
1 5 h 
17- 
16 
0 
1 
111 
6. 
17 
0 
1 
\\ 
IS. 
5 
0 
1 
71 
2 
7. 
5 
0 
1 2J 
18. 
18 
0 
1 
7 1 
7. 
15 
0 
1 
os 
19. 
6 
0 .... 
1 
6f 
8. 
2 
30 
1 oj 
19- 
17 
30 
1 
41 
8. 
14 
0 
1 
i 
20. 
5 
0 .. 
1 
31 
9- 
1 
30 
1 1 
20. 
17 
0 
1 
3f 
9. 
12 
0 
1 
Ol 
21. 
5 
0 
1 
1 1 
10. 
3 
0 
1 2 
21. 
17 
0 
1 
<0 
10. 
13 
0 
1 
2 
22. 
3 
0 
1 
ji 
11. 
0 
0 
] 3 b 
22. 
16 
0 .... 
1 
0 j 
11. 
13 
0 
2 
1 
61 
23. 
3 
30... . 
1 
3J 
12. 
3 
0 
l ii 
23. 
15 
30. 
1 
11 
12. 
16 
0 
1 
lOf 
24. 
2 
20 
1 
41 
13. 
4 
0 
2 21 
24. 
14 
0 
1 
4 
13. 
14 
0 
2 
H 
25. 
2 
30... 
1 
6 
14. 
30 
2 5l 
25. 
13 
0 .. 
] 
g 
14. 
14 
30 
2 
41 
26. 
1 
0 . 
1 
1 ft 4 
15. 
4 
0 
1 111 
26. 
15 
30 
1 
1 1 j 
15. 
16 
0 
1 
7 J 
27. 
1 
0 
2 
6£ 
16. 
4 
0 
1 10J 
27. 
13 
0 ... 
2 
101 j 
16. 
15 
30 
2 
si 
If we add the age of the Lunar Diurnal Tide to the times of the Moon’s Declination 
vanishing, we shall have the times when M"=0 : — 
3 a 
MDCCCLXXV. 
