THOMAS] TABLET OF THE CROSS 759 
(8 Ben), the date following the second numeral series. These agree- 
ments can scarcely be accidental, and if not, they establish two 
facts: First, that Goodman’s interpretation of the face glyphs giving 
the date 8 Ahau 18 Tee is correct, or at least brings a correct 
result; and, second, that the emendation of the first numeral series by 
adding 2 days is also correct. Other relations of dates on the left 
slab have been given, besides which no further connection by using 
the differences of the numeral series can be obtained. 
Turning to the right slab, if, as has been suggested, we assume the 
first date (11 — ? 20 Pop) to be 11 Ik 20 Pop (year 5 Akbal), and sub- 
tract series 2 and 3 (4,749 and 123) from the first series (8,034), the 
remainder, 3,162, counting forward from 11 Ik 20 Pop (5 Akbal) will 
bring us to 1 Kan 2 Kankin 13 Akbal, the date following the first 
numeral series, if the month symbol is interpreted Kankin instead of 
Kayab. This result, however, is not so satisfactory as that of the left 
slab, as the day in (11 — 4 20 Pop) does not appear to be Ik, though 
indeterminable by inspection; but it has been referred to in connection 
with the reckoning in regard to the inscription onthe left slab, as it 
may tend to show that these minor series are to be deducted in 
tracing connection of the dates. 
After a somewhat lengthy and careful study of the inscription on 
this tablet, testing the relation of the series by calculation in every 
possible way, I have failed to find any satisfactory evidence of connec- 
tion ina continuous line. The indications point rather to two or more 
parallel lines. There are, however, difficulties in the way of obtaining 
a clear understanding of the plan adopted by the original artist which 
Ihave been unable to overcome, so great, in fact, that were it not for 
other evidence, the correctness of Goodman’s theory in this respect 
would be left in doubt. It was probably on account of these difticul- 
ties that this author omitted any reference to the inscription on the 
right slab, the best known and most accessible to students of all the 
Central American inscriptions. Some indications of different lines of 
series are found in the overlapping of reckonings in the inscription of 
the left slab already given. 
At glyph U2 of the right slab, immediately after the date 8 Ahau 
13 Ceh which follows numeral series 3 of this slab (see list of series 
above), is the symbol for 9 cycles, which, as we have stated, is not con- 
nected with any numeral series. This is, as will be found in other 
instances, probably intended to indicate that at this point 9 cycles have 
been completed from + Ahau 8 Cumhu, the date following series 1 of 
the left slab. The day 8 Ahau 13 Ceh is the first day of the 10th cycle 
as given in Goodman’s chronological calendar. It is, however, cer- 
tain that all the numeral series preceding it on the tablet fall short of 
amounting to 9 cycles. Moreover, some of them appear, as has been 
shown, to reach back over others, thus lessening the number to be 
