continuous line of day
symbols and red and black numeral characters as follows, the numbers and
names below the characters being explanatory and of course not on the
original:

[Illustration: FIG. 359. Lines of day and numeral symbols.
Pl. 36 10 XI Men | 15 XII Oc | 9 IX Cauac

Pl. 37 11 VII Oc | 20 I Oc | 10 XI Ahau]

As colors are not used in these figures the red numerals are indi
cated[TN-2] by hollow or outline dots and lines and the black numerals by
solid lines and dots.[272-1]

In order further to assist those unacquainted with the symbols the same
line is here given in another form, in which the names of the days are
substituted for the symbols, Roman numerals for the red numbers, and
Arabic for the black: 10, XI Men; 15, XIII Oc; 9, IX Cauac; 11, VII Oc;
S, I Oc; 10, XI Ahau.

The S is introduced to represent a numeral symbol different from the
lines and dots and will be explained when reached in the course of the
illustration.

Starting from 11 Men, found in the twelfth figure column of Table I, and
counting forward fifteen days, we come to 13 Oc of the thirteenth figure
column, the second day of the above quoted line. Counting nine days from
13 Oc[273-1] brings us to 9 Cauac, the third day of the line; eleven days
more, to 7 Oc, the fourth day of the line. Following this day in the
line, instead of a black numeral of the usual form, is this symbol:
[Illustration: Hieroglyph] represented by S in the second form, where the
names and numbers are substituted for the symbols. Taking for granted,
from the position it occupies in the line, that it is a numeral
character, it must represent 20, as the day which follows is 1 Oc, and
counting twenty days from 7 Oc brings us to 1 Oc. Counting ten days more
we reach 11 Ahau, the last day of the line given above.

In this example the black numerals appear to have been used simply as
counters, or as numbers indicating intervals; for example, 15 is the
interval between 11 Men and 13 Oc.[273-2]

This furnishes a clew which, if followed up, may lead to important
results. That it explains the signification of one symbol undetermined
until this relation of the numerals to one another was discovered, is now
admitted. In the work of Dr. Foerstemann before alluded to the discovery
of the symbol for 20 is announced. Although I was not aware of the
signification of this symbol until after my second paper, "Notes on
certain Maya and Mexican manuscripts," w