AnnualReport-1911

## Table I. Errors of the Time Ball in 1911 | Date | Jan. | Feb. | Mar. | April | May | June | July | Aug. | Sept. | Oct. | Nov. | Dec. | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | 0.1 | ... | 0.1 | 0.1 | +0.4 | -0.3 | -0.2 | -0.3 | -0.2 | | | | | 2 | 0.1 | 0.1 | ... | +0.4 | 0.1 | +0.2 | 0.1 | +0.4 | | | | | | 3 | 0.1 | 0.1 | 0.1 | 0.1 | +0.5 | +0.3 | +0.2 | | | | | | | 4 | 0.1 | -0.2 | +0.3 | 0.1 | +0.5 | 0.1 | 0.1 | 0.1 | +0.8 | 0.1 | 0.1 | 0.1 | | 5 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | -0.2 | 0.1 | | | | | | | 6 | 0.1 | -0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | -0.4 | 0.1 | +0.2 | | | | 7 | +0.2 | -0.2 | 0.1 | 0.1 | -0.3 | -0.2 | +0.2 | 0.1 | -0.3 | 0.1 | +0.5 | | | 8 | 0.1 | 0.1 | 0.1 | +0.2 | 0.1 | 0.1 | +0.2 | 0.1 | 0.1 | 0.1 | | | | 9 | 0.1 | 0.1 | +0.2 | 0.1 | 0.1 | 0.1 | -0.2 | 0.1 | 0.1 | 0.1 | | | | 10 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | -0.2 | | | | 11 | 0.1 | 0.1 | +0.2 | +0.2 | 0.1 | +... | -0.2 | -0.2 | -0.4 | -0.2 | 0.1 | 0.1 | | 12 | 0.1 | 0.1 | 0.1 | 0.1 | -0.3 | 0.1 | -0.2 | 0.1 | ... | 0.1 | | | | 13 | +0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | -0.4 | ... | 0.1 | 0.1 | 0.1 | 0.1 | | 14 | +0.3 | 0.1 | 0.1 | 0.1 | -0.5 | 0.1 | -0.2 | 0.1 | 0.1 | 0.1 | | | | 15 | +0.2 | 0.1 | 0.1 | +0.2 | 0.1 | 0.1 | -0.3 | 0.1 | 0.1 | | | | | 16 | 0.1 | 0.1 | +0.2 | 0.1 | 0.1 | 0.1 | -0.2 | +0.2 | -0.2 | -0.2 | | |

- means too late.

+ means too early.