G2 
MR. LUBBOCK ON TIDE OBSERVATIONS 
Table B. 
Showing a comparison of the observations of the Heights of High Water made at the 
London Docks, increased by five feet, and those at the St. Katherine Docks. 
The observations marked with an * appear doubtful. 
Date. 
1835. 
July. 
August. 
September. 
October. 
November. 
December. 
xmdon 
Docks. 
-f 5 a. 
't.Katli. 
Docks. 
Differ- 
ence. 
London 
Docks. 
+ 5 ft. 
St.Kath. 
Docks. 
Differ- 
ence. 
London 
Docks. 
+ 5 ft. 
St.Kath. 
Docks. 
Differ- 
ence. 
London 
Docks. 
+ 5 ft. 
St.Kath. 
Docks. 
Differ- 
ence. 
London 
Docks. 
+ 5 ft. 
St.Kath. 
Docks. 
Differ- 
ence. 
London 
Docks. 
+ 5 ft. 
St.Kath. 
Docks. 
Differ- 
ence. 
a. 
in. 
ft. 
in. 
in. 
in. 
ft. 
in. 
in. 
a. 
in. 
ft. 
in. 
in. 
ft. 
in. 
ft. 
in. 
in. 
ft. 
in. 
ft. 
in. 
in. 
ft. 
in. 
ft. 
in. 
in. 
1. 
10 
0 
20 
0 
0 
20 
7 
20 
8 
— 
i 
25 
i 
25 
i 
0 
23 
7 
23 
8 
— 
i 
25 
2 
25 
2 
0 
26 
8 
26 
10 
— 
2 
>0 
8 
20 
9 
— 
1 
20 
4 
26 
5 
— 
i 
25 
4 
25 
3 
+ 
1 
24 
8 
24 
10 
_ 
2 
27 
3 
27 
2 
+ 
i 
2. 
26 
9 
20 
9 
0 
20 
3 
26 
3 
0 
24 
3 
24 
4 
1 
23 
7 
23 
6 
+ 
1 
26 
6 
26 
7 
— 
i 
20 
1 
20 
7 
— 
0 
26 
6 
20 
1 
+ 
5 
25 
0 
25 
O 
0 
25 
8 
25 
9 
1 
20 
i 
26 
2 
— 
l 
26 
5 
26 
5 
0 
a. 
20 
1 
20 
8 
— 
7 
20 
3 
26 
4 
1 
24 
7 
24 
6 
+ 
1 
26 
5 
20 
5 
0 
27 
0 
27 
0 
0 
27 
7 
27 
8 
— 
1 
25 
4 
25 
5 
— 
1 
25 
6 
25 
7 
— 
1 
25 
6 
25 
5 
+ 
1 
26 
6 
20 
7 
— 
i 
27 
5 
27 
6 
— 
1 
4. 
25 
9 
25 
9 
0 
25 
3 
25 
2 
+ 
1 
25 
1 
25 
1 
0 
27 
0 
27 
9 
_ 
3 
26 
4 
20 
5 
— 
l 
27 
3 
27 
4 
— 
1 
25 
.5 
25 
5 
0 
25 
4 
25 
5 
1 
26 
1 
20 
1 
0 
26 
4 
26 
6 
— 
2 
26 
9 
26 
10 
_ 
1 
5. 
26 
0 
25 
2 
+io 
25 
4 
25 
5 
— 
1 
20 
0 
26 
6 
0 
27 
5 
27 
4 
+ 
1 
26 
10 
20 
9 
+ 
1 
27 
1 
27 
0 
+ 
1 
25 
o 
25 
n 
- 
9 
20 
0 
25 
9 
+ 
3 
26 
6 
20 
6 
0 
27 
0 
27 
1 
1 
27 
3 
27 
4 
— 
1 
27 
8 
27 
8 
0 
<>. 
25 
8 
25 
8 
0 
25 
4 
25 
6 

2 
27 
8 
27 
9 

1 
28 
1 
28 
2 
_ 
1 
27 
6 
27 
7 

1 
27 
2 
27 
4 

2 
26 
0 
20 
1 
_ 
1 
27 
0 
27 
0 
0 
28 
1 
28 
1 
0 
27 
6 
27 
7 
— 
1 
27 
3 
27 
3 
0 
7. 
26 
4 
24 
0 
2 
20 
i 
20 
2 
— 
i 
27 
3 
27 
4 
— 
1 
27 
11 
28 
0 
_ 
1 
26 
8 
20 
8 
0 
27 
6 
27 
6 
0 
26 
1 
20 
3 
— 
2 
20 
0 
20 
7 
— 
7 
27 
5 
27 
6 
— 
1 
28 
1 
28 
2 
_ 
1 
26 
1 
26 
1 
0 
27 
2 
27 
4 
— 
2 
s. 
20 
0 
20 
1 
— 
i 
27 
10 
27 
8 
+ 
2 
27 
10 
27 
5 
+ 
5 
27 
11 
27 
11 
0 
20 
1 
26 
2 
— 
1 
27 
1 
27 
1 
0 
27 
n 
28 
0 
+ 
i 
27 
8 
27 
10 
— 
2 
27 
10 
27 
9 
+ 
1 
20 
7 
26 
7 
0 
26 
7 
26 
6 
+ 
1 
27 
3 
27 
4 
— 
i 
28 
2 
28 
3 
i 
27 
4 
27 
5 
— 
1 
27 
1 
27 
1 
0 
26 
10 
27 
0 
— 
2 
26 
0 
26 
2 
— 
2 
20 
11 
20 
10 
+ 
i 
27 
9 
27 
9 
0 
27 
8 
27 
9 
— 
1 
27 
4 
27 
4 
0 
27 
2 
27 
2 
0 
27 
7 
27 
8 
— 
1 
10. 
27 
2 
27 
3 
— 
i 
27 
9 
27 
8 
+ 
1 
28 
1 
28 
1 
0 
28 
6 
28 
6 
0 
26 
8 
26 
7 
+ 
1 
25 
3 
25 
4 
— 
1 
27 
2 
27 
1 
+ 
i 
27 
6 
27 
5 
+ 
1 
26 
6 
26 
7 
— 
1 
28 
4 
28 
4 
0 
26 
4 
26 
3 
+ 
1 
25 
5 
25 
6 
- 
l 
in 
28 
i 
28 
1 
0 
27 
9 
27 
8 
+ 
1 
25 
6 
25 
7 

1 
27 
0 
27 
3 
3 
25 
1 
25 
1 
0 
24 
6 
24 
6 
0 
28 
i 
28 
0 
+ 
1 
27 
8 
27 
10 
— 
2 
20 
8 
26 
8 
0 
27 
3 
27 
4 
— 
1 
25 
8 
25 
3 
+ 
5 
24 
3 
25 
6 
- 
15 
12. 
27 
9 
27 
10 
1 
27 
5 
27 
0 
— 
1 
20 
6 
20 
7 
— 
1 
28 
1 
28 
1 
0 
24 
9 
24 
8 
+ 
1 
24 
6 
24 
8 
— 
2 
27 
0 
27 
0 
0 
27 
5 
27 
4 
+ 
1 
26 
5 
20 
5 
0 
25 
10 
25 
9 
+ 
1 
25 
3 
25 
5 
2 
24 
6 
24 
7 
— 
1 
13. 
27 
4 
27 
7 
_ 
3 
27 
0 
27 
7 
— 
1 
20 
2 
26 
4 
— 
2 
25 
9 
25 
9 
0 
23 
2 
23 
2 
0 
24 
0 
24 
2 
— 
2 
27 
3 
27 
3 
0 
27 
4 
27 
4 
0 
20 
3 
20 
3 
0 
25 
8 
27 
9 
_ 
1 
23 
9 
23 
10 
— 
1 
24 
7 
24 
10 
— 
3 
11. 
27 
6 
27 
7 
— 
1 
20 
5 
20 
5 
0 
25 
3 
25 
3 
0 
25 
8 
25 
7 
+ 
1 
22 
7 
22 
7 
0 
24 
0 
24 
1 
— 
1 
27 
2 
27 
2 
0 
20 
0 
20 
7 
— 
1 
25 
1 
25 
4 
— 
3 
25 
9 
25 
8 
+ 
1 
23 
11 
23 
11 
0 
25 
2 
25 
4 
— 
2 
15. 
27 
0 
27 
i 
— 
] 
25 
0 
25 
6 
0 
24 
1 
24 
3 
— 
2 
23 
2 
23 
1 
+ 
1 
22 
9 
23 
10 
— 
1 
24 
4 
24 
3 
+ 
1 
20 
3 
20 
5 
- 
2 
25 
10 
25 
10 
0 
24 
2 
24 
2 
0 
23 
3 
23 
3 
0 
24 
5 
24 
6 
— 
1 
25 
0 
25 
1 
1 
10. 
20 
5 
20 
6 

i 
21 
10 
24 
10 
0 
23 
4 
23 
4 
0 
22 
3 
22 
3 
0 
24 
9 
24 
7 
+ 
2 
25 
0 
25 
1 

1 
20 
5 
20 
6 
— 
i 
24 
11 
24 
10 
+ 
1 
23 
10 
23 
8 
+ 
2 
23 
3 
23 
4 
— 
1 
25 
7 
25 
6 
+ 
1 
25 
8 
25 
5 
+ 
3 
17. 
25 
7 
25 
8 
— 
i 
24 
0 
24 
5 
+ 
1 
22 
11 
22 
10 
+ 
i 
22 
11 
22 
11 
0 
25 
2 
25 
1 
+ 
1 
25 
3 
25 
3 
0 
25 
0 
24 
11 
+ 
i 
24 
1 
24 
0 
+ 
1 
23 
6 
23 
6 
0 
24 
2 
24 
2 
0 
20 
8 
26 
8 
0 
26 
10 
26 
9 
+ 
1 
IS. 
25 
2 
25 
2 
0 
23 
6 
23 
7 
1 
23 
3 
23 
3 
0 
24 
0 
24 
0 
0 
26 
3 
26 
4 
— 
1 
21 
7 
24 
8 
— 
1 
23 
11 
23 
5 
+ 
6 
24 
3 
24 
3 
0 
25 
0 
25 
4 
_ 
4 
26 
8 
26 
9 
— 
i 
19. 
24 
3 
24 
0 
+ 
3 
23 
3 
23 
rt 
0 
23 
3 
23 
3 
0 
28 
11 
28 
ii 
6 
29 
1 
29 
1 
0 
21 
3 
24 
3 
0 
21 
0 
23 
10 
+ 
2 
25 
11 
25 
10 
+ 
1 
25 
6 
25 
i 
_ 
i 
28 
3 
28 
4 
— 
i 
29 
4 
29 
3 
+ 
l 
20. 
23 
4 
23 
4 
0 
24 
3 
24 
3 
0 
26 
3 
20 
4 
— 
1 
27 
11 
27 
11 
0 
29 
4 
29 
3 
+ 
l 
21 
5 
24 
5 
0 
24 
4 
24 
6 
— 
2 
25 
3 
25 
5 
- 
2 
26 
4 
20 
6 
- 
2 
27 
3 
27 
4 
— 
l 
29 
0 
29 
1 
l 
21. 
21 
n 
21 
ii 
0 
20 
2 
26 
2 
0 
28 
0 
28 
0 
0 
27 
11 
27 
10 
+ 
l 
28 
4 
28 
5 

l 
21 
7 
2 1 
8 
— 
1 
25 
0 
25 
1 
— 
i 
20 
8 
20 
8 
0 
27 
2 
27 
2 
0 
27 
8 
27 
9 
i 
28 
9 
28 
10 
— 
i 
OO 
25 
7 
25 
7 
0 
25 
11 
25 
9 
+ 
2 
28 
0 
28 
1 
— 
1 
28 
2 
28 
1 
+ 
1 
28 
3 
28 
1 
+ 
2 
28 
3 
28 
2 
+ 
l 
24 
9 
25 
9 
— 
12 
27 
7 
27 
7 
0 
28 
1 
28 
1 
0 
28 
0 
28 
0 
0 
28 
3 
28 
4 
i 
23. 
25 
2 
25 
2 
0 
20 
0 
20 
0 
0 
27 
7 
27 
7 
0 
28 
2 
28 
3 
— 
1 
27 
8 
28 
0 
— 
4 
27 
2 
27 
4 
— 
2 
25 
8 
25 
7 
+ 
1 
20 
2 
20 
1 
+ 
1 
26 
7 
20 
9 
— 
2 
28 
0 
28 
1 
_ 
1 
29 
0 
29 
0 
0 
27 
11 
27 
11 
0 
21. 
25 
5 
25 
0 
1 
27 
i 
27 
1 
0 
28 
5 
28 
5 
0 
28 
2 
28 
3 
— 
1 
27 
11 
27 
11 
0 
26 
11 
26 
9 
+ 
2 
20 
3 
i ; 
3 
0 
27 
i 
27 
2 
— 
1 
28 
6 
28 
7 
_ 
1 
28 
2 
28 
1 
+ 
1 
27 
5 
27 
6 
— 
1 
27 
0 
27 
1 
i 
25. 
20 
1 
l2fi i 
1 
0 
27 
ii 
27 
11 
0 
29 
2 
29 
2 
0 
27 
8 
27 
10 
2 
20 
8 
26 
9 
— 
1 
26 
4 
26 
4 
0 
20 
11 
-7 
0 
- 
1 
27 
8 
27 
9 
— 
1 
28 
4 
28 
5 
— 
1 
28 
10 
28 
11 
- 
1 
27 
1 
27 
2 
— 
1 
26 
9 
26 
10 
- 
1 
20 
20 
9 
20 
11 

2 
27 
4 
27 
5 

I 
27 
8 
27 
11 
_ 
3 
20 
4 
20 
4 
0 
20 
7 
26 
7 
0 
25 
8 
26 
5 

9 
27 
4 
27 
5 
— 
1 
27 
4 
27 
4 
0 
28 
O 
28 
2 
+ 
1 
27 
3 
27 
3 
0 
20 
ii 
26 
11 
0 
25 
6 
25 
5 
+ 
1 
27. 
27 
■.’7 
3 
— 
1 
27 
8 
27 
8 
0 
28 
0 
28 
8 
2 
2f> 
7 
20 
8 
— 
1 
25 
7 
25 
7 
0 
24 
8 
24 
7 
+ 
1 
27 
3 
27 
4 
— 
1 
27 
10 
28 
1 
— 
3 
28 
2 
28 
2 
0 
27 
7 
27 
7 
0 
25 
8 
25 
5 
+ 
3 
25 
4 
25 
5 
1 
2K. 
27 
4 
27 
5 
— 
1 
27 
10 
27 
10 
0 
27 
0 
27 
0 
0 
25 
8 
25 
9 
— 
1 
20 
3 
26 
5 
— 
2 
24 
3 
21 
3 
0 
27 
0 
27 
8 
_ 
2 
28 
0 
28 
0 
II 
27 
7 
27 
8 
_ 
1 
26 
0 
20 
2 
_ 
2 
20 
8 
26 
10 
— 
2 
22 
8 
22 
8 
(t 
20. 
27 
11 
28 
0 
— 
I 
27 
5 
27 
4 
+ 
1 
21 
6 
20 
5 
_ 
23 
21 
9 
24 
8 
+ 
1 
25 
2 
25 
3 
— 
1 
24 
10 
24 
8 
+ 
2 
27 
1 
27 
2 
_ 
i 
27 
0 
27 
0 
0 
25 
2 
25 
i 
+ 
1 
21 
5 
21 
0 
1 
20 
8 
26 
10 
— 
2 
26 
0 
25 
9 
+ 
3 
30. 
27 
4 
i 
+ 
3 
27 
(1 
27 
0 
II 
20 
i 
20 
i 
0 
21 
10 
24 
10 
0 
20 
2 
26 
1 
+ 
1 
24 
8 
24 
11 
3 
27 
2 
27 
0 
27 
8 
27 
4 
— 
1 
25 
3 
25 
5 
- 
2 
25 
6 
25 
8 
- 
2 
20 
5 
26 
3 
+ 
2 
25 
0 
24 
7 
f 
5 
31. 
27 
7 
27 
7 
ii 
20 
1 
20 
4 
0 
21 
5 
24 
4 
+ 
1 
24 
6 
1 
27 
7 
27 
7 
0 
20 
2 
20 
O 
+ 
2 
20 
8 
20 
8 
0 
24 
10 
24 
9 
+ 
1 
