al
between the successive days of the column, taking the week numbers into
consideration, which is always to be understood in speaking of these
intervals unless the contrary is expressly stated.

[Illustration: FIG. 361.]

In the middle division of Plate 8 is a short series connected with a day
column containing the following days, reading downwards, as usual: Manik,
Cauac, Chuen, Akbal, Men. The symbol for Akbal (Fig. 361), is a very
unusual one, reminding us strongly of a skull, which may possibly have
given origin to the symbol. The numerals of the series are as follows: 20
+ 6, VIII; 20 + 6, VIII; the number over the column, VIII; and the
interval between the days, 52.

In Plate 15, division _c_, is the following series, which differs from
those given in having two day columns instead of one:

III III
Lamat Ix
Ahau Cimi }
Eb Ezanab } 12, II; 14, III.
Kan Oc
Cib Ik

The final number is the same as that over the columns; the sum of the
black numbers is 26, which is a multiple of 13; but in this case in
counting the intervals the days are to be taken alternately from the two
columns.

Commencing with 3 Lamat on our calendar and counting 26 days brings us to
3 Ix; 26 more to 3 Ahau; 26 more to 3 Cimi, and so on to the end.

In the lower division of Plate 9 is a series arranged as follows:

III III VI VIII
Cauac Been 3 2
{XI II
Chuen Chicchan { 3 4
{VI VII
Akbal Caban { 4 1
Men Muluc I III
Manik Ymix 7 2

The sum of the black numerals is 26 and the final red number is III, the
same as that over the columns. The interval between the days, taken
alternately from the two columns, as in the preceding example, is 26. The
numbers are also to be taken alternately from the two number columns.

It is apparent that these examples sustain the theory advanced. This will
also be found true in regard to all the series of this type in this and
the other codices where the copy is correct. Brasseur's copy of the
Manuscript Troano is so full of mistakes that no satisfactory examination
of this codex can be made until a photographic copy is obtained;
nevertheless a few examples are given as proof of the above statement.

In the third division of Plate XI* is the following series:

IV
Ahau }
Eb } 17, VIII; 13, VIII; 10 V; 12, IV.
Kan }
C