the eighth day of the
line; line; 20 (S) more to 1 Chicchan, the ninth day of the line; 10 more
to 11 Men, the tenth day of the line, and so on to the end.

[Illustration: FIG. 360. Line of day and numeral characters.
Pl. 33 XIII Ahau IX Muluc
Pl. 34 11 VII Ahau | 20 I Ahau | 10 XI Oc | 15 XIII Chicchan
Pl. 35 9 IX Ix | 11 VII Chicchan | 20 I Chicchan
Pl. 36 10 XI Men | 15 XIII Oc | 9 IX Cauac
Pl. 37 11 VII Oc | 20 I Oc | 10 XI Ahau
Pl. 38 15 XIII Men | 9 IX Kan | 11 VII Men
Pl. 39 20 I Men(?) | 10 XI Chicchan | 15 XIII Ahau]

That the order of the series may be clearly seen the numbers are given
here as they stand in the line, omitting the days: XIII; 9, IX; 11, VII;
20, I; 10, XI; 15, XIII; 9, IX; 11, VII; 20, I; 10, XI; 15, XIII; 9, IX;
11, VII; 20, I; 10, XI; 15, XIII; 9, IX; 11, VII; 20, I; 10, XI; 15,
XIII.

By adding together a black numeral and the preceding red one and casting
out thirteen (or thirteens, as the case maybe), when the sum exceeds this
number, we obtain the following red one, thus: XIII + 9 - 13 = IX; IX +
11 - 13 = VII; VII + 20 - 13 - 13 = I; I + 10 = XI, and so on through the
entire series. Attention is also called to the fact that the sum of the
black (Arabic) numbers 9, 11, 20, 10, 15, 9, 11, 20, 10, 15, 9, 11, 20,
10, 15, 9, 11, 20, 10, 15, is 260, a multiple of 13.

If this relation of days and numerals holds good as a general thing
throughout the codex, it is apparent that where the break is not too
extensive it will enable the student to restore the missing and defective
numerals and day symbols, to detect the errors of both copyists and
original artists, and to determine the proper relation of the plates to
one another. By it he learns, as before stated, that the symbol (see page
273) denotes 20, and if phonetic probably stands for the Maya word _Kal_.

Comparing Plates 42 and 43 with Plates 1 and 2, the resemblance is found
to be so strong as to lead to the belief that they belong together. It is
apparent from the figures, numerals, and characters[277-1] in the middle
division (_b_) of Plates 1 and 2 that they belong together, as they now
stand in Kingsborough's work and Foerstemann's copy; that Plates 42 and 43
are properly placed in regard to each other is also apparent from the
figures and numerals in divisions _a_ and _b_.

Taking for granted that the lines are to be read