REPORT ON THE COMPOSITION OF OCEAN-WATER. 
135 
Table III. 
Giving the difference between the Alkalinity of Bottom and “Surface” Waters. 
Station. 
153 
1 
309 
335 
354 
347 
339 
353 
291 
213 
102 
143 
222 
137 
97 
b — s. 
- -015 
- -010 
0 
+ ■002 
•002 
•003 
•004 
•005 
•006 
•009 
•010 
•Oil 
•013 
•014 
•019 
15 cases. 
We see that in 12 out of 15 cases the alkalinity was greater at the bottom than 
at points not deeper than 100 fathoms. But these are only 30 out of 130 determina- 
tions. To ascertain the bearing of the rest upon this point, I abstracted from Table II. 
the following Table (IY. ), which, as is seen, for each of four categories of waters, shows 
the number of cases in which the alkalinity lies within the interval named in the first 
Column. 
Table IY. 
Giving the number of cases in which different values of the Alkalinity occur. 
The alkalinity 
is within 
±•002 of 
Depth not greater than 100 
fathoms. 
Bottom. 
Not B 
Depth var 
150-400 
ottom ; 
les between 
500-1000 
Of the 36 cases. 
Per Cent. 
Of the 63 cases. 
Per Cent. 
Cases counted. 
•142 
7 
19 
0 
0 
2 
0 
T46 
17 
47 
10 
16 
5 
2 
150 
7 
19 
18 
29 
11 
4 
T54 
’ 1 
2-7 
16 
25 
2 
0 
•158 
1 
2-7 
11 
17 
0 
0 
T62 
0 
0 
3 
5 
1 
0 
•166 
2 
5 
1 
1-6 
0 
0 
•170 
0 
0 
3 
5 
0 
0 
T72 to -208 
1 
2-7 
1 
1-6 
1 
0 
i t 
*3 p 
