788 MAYAN CALENDAR SYSTEMS [ETH. ANN. 19 
at the bottom of the fifth column, is 5 Kan 13 Uo, between which and 
the preceding is the counter 4 days, 3 chuens, equal 64 days. As 6 
Ahau 13 Kayab falls in the year 12 Lamat, we count forward 64 days 
from this date, which brings us to 5 Kan, twelfth day of the second 
month (Uo) in the year 13 Ben. This is correct, as Kan may be the 
twelfth day of the month but not the thirteenth. 
The date glyphs in this inscription are of the usual form found in 
the Dresden codex, and the minor numerals the ordinary dots or balls 
and lines; and with the slight and evidently necessary corrections 
noted, the series conform to the rule. However, there is a break in 
the interpretation and calculation which remains unexplained, From 
5 Ben 11 Muan, which is in the year 1 Akbal, as the preceding date, 
to 6 Ahau 13 Kayab in the year 12 Lamat, there is a forward jump of 
37 years and 42 days unaccounted for. This appears to indicate that 
the 17 katuns passed over (bottom of third column) and possibly some 
other nuimber glyphs should be brought into the count. Mr Good- 
man merely says (page 134): 
An unintelligible reckoning follows [5 Ben 11 Muan], succeeded by a 17th katun 
sign and 6 Ahau 13 Kayab, the date probably being indicated by the one begin- 
ning the 5th ahau of the 17th katun of the 9th cycle. 
ALTAR S$ 
We refer next to Maudslay’s Altar S, the initial series on which, as 
given by Goodman, is 54-9-15-20-18-20—4 Ahau 13 Yax, or as we 
write. it, fifty-fourth great cycle, 9 cycles, 15 katuns, 0 ahaus, 0 chuens, 
0 days, to 4 Ahau 13 Yax. These numbers appear to be correct 
except the katuns, Maudslay’s drawing showing 13 or 11. ‘There are 
two short lines and three balls or dots, but the two outer ones are 
darkened with lines indicating that they may possibly be loops. Mr 
Goodman appears to have changed the number of katuns in this case 
to form connection with 4 Ahau 8 Cumhu, beginning day of his fifty- 
fourth great cycle, without explanation. 
On this altar we find very distinctly shown these dates, 4 Ahau 13 
Yax and 7 Ahau 18 Zip. Between the two are four glyphs, one of 
which indicates 5 katuns. This count (86,000 days) precisely connects 
the two dates. 
We have now noticed all the series of the Copan inscriptions which 
afford any means of testing Mr Goodman’s discoyeries, following his 
explanations so far as this was necessary. 
INSCRIPTION AT PrrpRAS NkEGRAS 
Before concluding reference to the inscriptions, | call attention to one 
more recently discovered by Mr Teobert Maler at Piedras Negras on 
the Usumacinta river. This, as copied from Mr Maudslay’s drawing, 
which he made from the photograph, is given in our figure 20. As 
Mr Maudslay has subjected it to Mr Goodman’s theory, we give here 
