., is 28 days; 28x13 = 364, x5 =
1820. That both of these products are multiples of 260 is a truism, and
cannot in any way require us to see a tonalamatl reckoning as the basis
of this passage. Nor is each separate day-column a tonalamatl in fifths,
as so often found.

Finally, if we should assume that the series went on across page 25, to
a full katun-round of 20 terms, the circuit would be broken; line 2
would not regularly follow line 1, and so on. The probabilities then, as
derived from the succession of the days, seem almost conclusive that
this is a section of 65 terms, to be read horizontally, in whichever
direction. And then, since the subdivision of 15,080 days (or 1820, if
read right to left) into 65 terms, _necessarily_ gives us successive
day-_numbers_ decreasing (or increasing) by 2, the likeness to the
katun-series may be only apparent--a simple truism. Or, on the other
hand, in view of the glyph similarities (a point which I think should
always be given close attention), there _may_ be some relation to the
katun-series--all in spite of the right-left or left-right difficulties.

What part the blue[34-*] number series plays, I cannot say. Dr.
Seler,[34-[+]] suggests that they are "corrections," to set each term
ahead 20 days. This states a fact, but does not give any explanation.
Each blue number is 6 less than its red column, and 7 Kan _is_ of course
20 days later than 13 Kan.

FOOTNOTES:

[24-*] Dr. Foerstemann (_Comm. z. Par. Mayahds._) speaks of the background
to the central figure on page 16 as black, instead of red; he also
describes the number columns as made up of red and black numerals only.
There are many similar errors in his Commentary, due to his ignorance of
the colors, and to the obscurity of the photographic reproductions.

[28-*] Where to place the Tro.-Cort., in view of the _apparent_ Kan,
Muluc[TN-3] Ix, Cauac years indicated on pages 34-37, and the 13 Cumhu
immediately next to 13 Ahau on page 73 (13 Ahau 13 Cumhu falling only
possibly in a year 12 Lamat) I am not ready to say.

[29-*] Mr. Bowditch suggests to me that the numbers 1 2 3 3 5 6 6 are to
be read with each of the day signs in their respective columns, and,
being placed in the middle, may apply both to the upper and lower sets.
The strongest objection I can see to this is that the numbers are black,
instead of the usual red. In this case, instead of intervals of 8 and
16, giving rounds of 5x8=40 and 5x16=80 days, we wo