THE SUPPLEMENTARY SERIES. 559 
As yet what period these deities presided over is doubtful. Indeed, before 
suggesting what appears to be the most likely period in this connection from the 
limited evidence available, it is necessary to describe first the closest parallel 
afforded by Aztec mythology to the Maya practice, which we are supposing may 
be indicated by these head-elements in Glyph C, namely, the so-called Nine Lords 
of the Night of the Aztec pantheon. 
Bowditch has shown that, as portrayed in the Codex Borbonicus, the Nine 
Lords of the Night are there associated with a series of tonalamatls or 260-day 
periods, each Lord presiding in turn over a day thereof, the tenth day having the 
same Lord as the first day, the eleventh day the same Lord as the second day, and 
so on, each sequence being continuous, with but one exception. Since 9 and 260 
contain no common factors, and since the latter is divisible by the former with a 
remainder of 8, it follows that if the Nine Lords of the Night were applied to the 
days of the succeeding tonalamatls without a break in either series, each tonal- 
amatl would begin with a different lord, and not until the tenth tonalamatl came 
around would the First Lord, Xiuhtecuhtli, coincide with the beginning day of a 
tonalamatl again. ‘That is, all of the other eight lords would preside over the begin- 
ning days of tonalamatls before the First Lord would occupy that position again. 
As a matter of fact this is not the case, since the First Lord, Xiuhtecuhtli always pre- 
sided over the first day of all tonalamatls, and this could only be achieved by drop- 
ping the Ninth Lord, Quiahuitl, at the end of each tonalamatl, and having the 
Eighth Lord, Tepeyollotli, who always presided over the two hundred and sixtieth 
day, be followed by the First Lord in this one position alone. Bowditch clearly 
sums up the situation in the Codex Borbonicus as follows: 
“Apparently, therefore, the Tonalamatls succeeded each other, continuously lapping 
over from one year [365-day year] to the other, while the Lords of the Night accompanied 
the Tonalamatls and lost one of their number [always the Ninth Lord, Quiahuitl] with the 
ending of each Tonalamatl.’”! 
Let us next apply this general idea, namely that of a fixed series of deities, 
(not necessarily limited to g in number, however) presiding over a series of consec- 
utive time-periods (not necessarily the day), to this element of Glyph C, and see 
how it agrees with the data recorded. 
In the writer’s study of the Supplementary Series in 1916 he found 11 pairs 
(one a triplet) of Initial Series, the members of each pair of which record the same 
date, as follows: 
Pair 1. Stela 2, Copan 9.10.15.0. O Pair 6. Stela 24, Naranjo 262 03025. 12 
Stela 12, Copan i), Hoveniistel, (@ Stela 29, Naranjo Oulee1osss12 
Pair 2. Stela 13, Copan OpliaOLOngO Pair. -7.  Stea7,2. La Honrades, 9.37% 6: 0.0 
Stela 3, Copan 0), Ils, 0.0.) 0 Stela E, Quirigua Gal 70 an O 
Pair 3. Stela 1, Piedras Negras 0.12. 2.0.16 Pair 8. Stela 13, Naranjo Os 17 utOcOn O 
Stela 3, Piedras Negras Byers, Dfol sis Zoéph. B, Quirigua Ql 710.070 
Pair 4. Stela 11, Yaxchilan oy Fiey,. Veier ake Pair g. Stelai, Ixkun 0,186 0,0..0 
Stela 11, Yaxchilan GriGl% 00.0 Zooph.O, Quirigua onisl, OE, Io) 
Trip. 5. Stela 1, Yaxchilan 9.16.10.0. O Pair 10. Stela 8, Naranjo g.18.10.0. 0 
Stela F, Quirigua OulOnloLor oO Stela I, Quirigua 9.18.10.0. oO 
Stela N, Copan 9.16.10.0. 0 Pair 11. Stela J, Quirigua OS. 167 80 O 
Stela M, Copan 9.16, 5:0; 0 
Now, if these deities, presided over the successive days of the Maya chronologi- 
cal era, under the assumption that the head-element of Glyph C declares which 
deity it was that presided over the day recorded by the accompanying Initial Series, 

1Bowditch, 1900, p. 152. 
