138 THE INSCRIPTIONS AT COPAN. 
the latter sign being Glyph A of the Supplementary Series, here shown 
with a coefficient of to. Unfortunately, the next glyph resem- O 
bles none of the known forms for the month-signs and it has, a 
moreover, a coefficient of 9: As the month coefficient correspond- © 
ing to any day Ahau can only be 3, 8, 13, or 18, it is probable that the sign 
in B7a 1. h. is not the month-sign of the Initial Series terminal date. Although 
a slight digression will here be necessary to prove this point, it seems best to 
introduce the matter at this time. 
The usual position of the month-sign in Initial Series terminal dates is 
immediately following the last glyph of the Supplementary Series, for which, 
on the basis of this regularity, the writer at one time suggested the name 
“‘month-sign indicator,’ but which is now generally known as Glyph A of 
the Supplementary Series.’ If it is not found here, it usually follows the day 
of the Initial Series terminal date, wherever that may be. In a very few 
texts the month-sign of the Initial Series terminal date is suppressed alto- 
gether, and there is recorded in its place a glyph unlike any of the known 
month-signs, but which has a coefficient. This last seems to be the case here 
on Stela 2. 
O 
O 
a 
Fic. 23.—Glyphs used in place of the month-signs of the Initial Series terminal dates on: a, Copan, Stela 2; d, 
Copan, Stela 3; c, Copan, Altar H’; d, Yaxchilan, Stela 1; ¢, Yaxchilan, Stela 11; f, Yaxchilan, Lintel 29. 

Figure 23, a, is the sign immediately following Glyph A of the Supple- 
mentary Series on Stela 2. This sign is a grotesque head with a coefficient 9, 
and can not be the month-sign of the Initial Series terminal date, as we have 
seen. The second example, figure 23, b, is from Stela 3, also here at Copan, 
where it occurs immediately after Glyph A of the Supplementary Series, 
the month-sign of the Initial Series terminal date again being suppressed, as 
in the case of Stela 2. Here again both the grotesque head and its coefficient 
are the same. A third possible case on Altar H’, also here at Copan, is shown 
in figure 23, c. The grotesque head appears to be the same and the coefficient 
is again 9, but this glyph does not replace the month-sign, which occurs in 
its regular position after Glyph A of the Supplementary Series, but it follows 
the day of the Initial Series terminal date, for which reason it is offered only 
as a doubtful case in the present connection. 
The only other parallel elsewhere of which the writer is aware occurs 
at Yaxchilan (see plate 1) on Stele 1 and 11 and Lintel 29, figure 23, d, ¢, and f, 
respectively. In these three cases the glyphs replacing the month-signs of the 
Initial Series terminal dates occur immediately after their respective Glyphs 

'The month-sign of the Initial Series terminal date follows Glyph A of the Supplementary Series, the so-called 
“month-sign indicator,” in about four out of every five Initial Series; any other position, therefore, is exceptional 
(Morley, 1916, p. 368, note 1). 
