The S in the line of numerals represents the usual symbol for 20. The sum of the black numbers is 65, the interval between the days 65, and the last red numeral the same as that over the day column, thus agreeing in plan with those in the other codices.
The following double column series is found in the middle division of Plate 30:
| XI | XI | ||
| Ahau | Ymix | } | |
| Eb | Been | 20 + 6, XI; 20 + 6, XI. | |
| Kan | Caban | ||
| Cib | Chicchan | ||
| Lamat | Manik |
The number 20 is denoted by the usual symbol. The sum of the black numbers is 52 and the interval between the days in each column 52, but in this case there does not appear to be any connection between the columns, there being, in fact, two distinct series.
In the upper division of the same plate is this series:
| XI | |||
| Ezanab | { | VI 8 | XI 5 |
| Oc | { | VI 8 | XI 5 |
| Ik | { | VI 8 | XI 5 |
| Ix | { | VI 8 | XI 5 |
| Cimi |
The order in which these numerals are to be read is as follows: 8, VI; 5, XI; 8, VI; 5, XI, &c., which gives, as the final red number of the series, XI, the same as that over the column. The sum of the black numbers is 52 and the interval between the days 52.
Taking for granted that the correctness of the theory advanced is conceded, some attempts at its further application, especially its use in making restorations and corrections in defective series and in settling doubtful questions relating thereto, will now be presented.
In the upper division of Plate 32, Dresden Codex, are the four day columns and lines of numerals over them here represented:
| 1 | |||
| 4 | 13 | 9 | 4 |
| 15 | 13 | 2 | 11 |
| XIII | XIII | XIII | XIII |
| Manik | Cib | Chicchan | Ix |
| Chuen | Ahau | Muluc | Ezanab |
| Men | Kan | Been | Ik |
| Cauac | Lamat | Caban | Cimi |
| Akbal | Eb | Ymix | Oc |