This section is from the book "Facts Worth Knowing", by Robert Kemp Philip. Also available from Amazon: Inquire Within for Anything You Want to Know.
Tabular view of the number of gallous contained in the clear between the brick work for each ten iuches of depth:
Diameter. | Gallons. |
2 feet | equals 19 |
2 1/2 | " 30 |
3 | " 44 |
3 1/2 | " 60 |
4 | " 78 |
4 1/2 | " 97 |
5 | " 122 |
5 1/2 | " ]48 |
6 | " 176 |
6 1/2 | " 207 |
7 | " 240 |
7 1/2 | " 275 |
8 | " 313 |
8 1/2 | " 353 |
9 | " 396 |
9 1/2 | " 461 |
10 | " 489 |
11 | " 592 |
12 | " 705 |
13 | " 827 |
14 | " 959 |
15 | " 1101 |
20 | " 1958 |
25 | " 3059 |
 
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