| XIII | ||
| Men | } | |
| Manik | 20, VII; 20 Ⓘ; 1, II; 4, VI; 7, XIII. | |
| Cauac | ||
| Chuen | ||
| Akbal |
In this, I, the second red number of the series, has the circle of dots around it. The number over the column is partially obliterated, but is readily restored, and should be XIII.
If we select, on our calendar, the Cauac column, or series, a reason for this distinction will appear. The sum of the black numbers is 53, which is also the interval between the days. As has heretofore been shown, the red numbers of the series refer to certain days selected by the priests, for special reasons unknown to us, which occur between the days of the column.
In this case the intermediate days are as follows:
Between 13 Manik and 13 Cauac: 7 Manik, 1 Manik, 2 Lamat, and 6 Eb.
Between 13 Cauac and 13 Chuen: 7 Cauac, 1 Cauac, 2 Ahau, and 6 Kan.
Here we find the explanation for which we are seeking, as in the interval between 13 Cauac and 13 Chuen is 1 Cauac, which, if the Cauac column of the calendar be selected, is the first day of the year 1 Cauac, the first year of an Indication. As this occurs only when a year commencing with Cauac is selected, we infer that the series is based upon the system with the four year series.
The best illustration of this peculiarity and the strongest evidence of its signification is probably found in the series contained in the middle division, Plate XI, same manuscript. This, when written out and the numbers properly arranged, is as follows:
| Ⓘ | Ⓘ | ||
| Oc | Ahau | } | |
| Cib | Cimi | 1, II; 2, IV; 2, VI; 5, XI; 2, XIII; 4, IV; 9(?) Ⓘ. | |
| Ik | Eb | ||
| Lamat | Ezanab | ||
| Ix | Kan |
The last black number of the series is 9, but should be 10 to render the series complete. Making this correction, the series is of the usual type; the sum of the black numerals is 26, the interval between the days of the columns is 26, and the final red numeral is the same as that over the columns.