## Table I. Errors of the Time Ball in 1910.
- means too late.
+ means too early.
| Date | Jan. | Feb. | Mar. | April | May | June | July | Aug. | Sept. | Oct. | Nov. | Dec. |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | -0.2 | +0.6 | 0.1 | +0.4 | 0.1 | 0.1 | 0.1 | 0.1 | | | | |
| 2 | | 0.1 | 0.1 | +0.2 | 0.1 | 0.1 | +0.6 | 0.1 | 0.1 | 0.1 | | |
| 3 | -0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | -0.2 | 0.1 | -0.3 | 0.1 | |
| 4 | 0.1 | +0.3 | +0.4 | 0.1 | 0.1 | +0.3 | | | | | 0.1 | 0.1 |
| 5 | 0.1 | -0.2 | 0.1 | 0.1 | 0.1 | +0.2 | 0.1 | +0.3 | 0.1 | +0.4 | -0.2 | |
| 6 | 0.1 | 0.1 | 0.1 | +0.6 | 0.1 | 0.1 | +0.3 | 0.1 | | -0.2 | | |
| 7 | 0.1 | 0.1 | +0.4 | 0.1 | 0.1 | +0.3 | +0.2 | +0.2 | 0.1 | +0.2 | -0.2 | |
| 8 | +0.2 | 0.1 | 0.1 | 0.1 | 0.1 | +0.2 | +0.3 | 0.1 | 0.1 | -0.2 | | |
| 9 | 0.1 | 0.1 | 0.1 | +0.2 | +0.2 | +0.2 | +0.2 | +0.4 | 0.1 | 0.1 | | |
| 10 | 0.1 | 0.1 | 0.1 | +0.3 | +0.2 | +0.4 | -0.2 | -0.2 | 0.1 | | | |
| 11 | +0.3 | 0.1 | +0.3 | 0.1 | 0.1 | 0.1 | +0.2 | -0.2 | 0.1 | | | |
| 12 | +0.4 | +0.5 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | -0.2 | 0.1 | +0.4 | |
| 13 | +0.8 | 0.1 | 0.1 | 0.1 | +0.2 | 0.1 | 0.1 | 0.1 | 0.1 | | | |
| 14 | +0.6 | 0.1 | +0.3 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | |
| 15 | +0.3 | +0.3 | -0.2 | -0.2 | 0.1 | +0.2 | 0.1 | 0.1 | 0.1 | -0.2 | 0.1 | |
| 16 | -0.2 | 0.1 | 0.1 | +0.2 | 0.1 | 0.1 | -0.3 | 0.1 | | | | |
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