bring us to 1
Ymix. In like manner we find the fourth day to be 1 Cib and the fifth 1
Ymix. The numbers in the figure columns are to be taken alternately,
thus: 5, VI; 8, I; 5, VI; 8, I, &c.

These examples are sufficient to show that the series of the Manuscript
Troano are arranged upon the same plan and based upon the same system as
those of the Dresden Codex. The following examples from the Codex
Cortesianus prove the same thing to be true in reference to the series
found in it.

The first is taken from the lower division of Plates 10 and 11, Rosny's
reproduction:

XIII
Ahau } 11, XI; 5, III; 5, VIII; 5, XIII; 9, IX; 3, XII; 6, V;
Chicchan } 1, VI; X, XIII.
Oc
Men

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 XI
{ 8 5
Oc { VI XI
{ 8 5
Ik { VI XI
{ 8 5
Ix { VI XI
{ 8 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