from left to right and
the plates to follow each other in the same order, our next step is to
ascertain on which side of the pair (Plates 42 and 43) Plates 1 and 2
should be placed.

The series of days and of numbers in Plate 43_b_ and Plate 1_b_, which
evidently belong together, can only be brought into proper relation by
placing the latter to the right of the former. Yet, strange as it may
appear, the days and numerals in this division are to be read from right
to left, while all the other numeral series of these four plates are to
be read as usual, from left to right. This change in the order of the
pages also brings together the similar figures in the upper division of
these plates. That Plate 42 properly follows Plate 41 is apparent from
the line of alternate red and black numerals in division _b_. As shown in
a previous work[278-1] and as will appear hereafter, these horizontal
lines of alternate red and black numerals without day symbols
interspersed are usually, if not always, connected at the left with a
column of days over which there is a red numeral, as in the Codex Troano.
Running back along the line of numerals in the middle division of Plates
42 and 41, the day column with which it is connected is found at the left
margin of Plate 38. Unfortunately the red numeral over this column is
obliterated, but can easily be restored. Starting with the first black
numeral to the right of this, the entire line, which ends in the second
column of the middle division of Plate 43 (representing the black
numerals by Arabic numbers and the red by Roman numbers), is as follows:
16, IX; 8, IV; 11, II; 10, XII; 1, XIII; 12, XII; 6, VI(?); 12, IV; 11,
II; 11, XIII; 6, VI; 12, V; 7, XII; 6, V; S + 1, XIII; 6, VI.

The number over the day column, Plate 38, must have been VI, as VI + 16 -
13 = 9, a conclusion which is sustained by Foerstemann's copy, which shows
here very plainly the red character for VI.

By adding the black (Arabic) numeral to the preceding red (Roman) one and
casting out the thirteens, as heretofore explained, we obtain the
following red (Roman) numerals, thus: VI + 16 - 13 = IX; IX + 8 - 13 =
IV; IV + 11 - 13 = II; II + 10 = XII; XII + 1 = XIII; XIII + 12 - 13 =
XII; XII + 6 - 13 = V.

Here the result differs from what is found at this point in the line, as
we obtain V instead of VI. In this case the mistake, if one has been
made, cannot be attributed to Lord Kingsborough's copyist; the Maya
artist must