168 BUREAU OP AMERICAN ETHNOLOGY [bull. 57 



and is followed by a head-variant glyph in A2, to which is prefixed a 

 bar and dot coefficient of 9. By its position, immediately following 

 the introducing glyph, we are justified in assuming that A2 records 

 9 cycles, and after comparing it with d-f, figure 25, where the head 

 variant of the cycle sign is shown, this assumption becomes a cer- 

 tainty. Both heads have the same clasped hand in the same position, 

 across the lower part of the face, which, as explained on page 68, is 

 the essential element of the cycle head; therefore, A2 records 9 

 cycles. The next glyph, A3, should be the katun sign, and a com- 

 parison of this form with the head variant for katun m e-h, figure 27, 

 shows this to be the case. The determining characteristic (see p. 

 69) is probably the oval in the top of the head, which appears in 

 both of these forms for the katun. The katun coefficient is 15 (3 

 bars). The next glyph, A4, should record the tuns, and by comparing 

 tliis form with the head variant for the tun sign in e~g, figure 29, this 

 also is found to be the case. Both heads show the same essential 

 characteristic — the fleshless lower jaw (see p. 70). The coefficient is 

 (compare fig. 47). The uinal head in A5 is equally unmistakable. 

 Note the large curl protruding from the back part of the mouth, 

 which was said (p. 71) to be the essential element of this sign. 

 Compare figure 31, d~f, where the head variant for the uinal is given. 

 The coefficient of A5 is like the coefficient of A4 (0), and we have 

 recorded, therefore, uinals. The closing period glyph of the Initial 

 Series in A6 is the head variant for the kin sign. Compare this form 

 with figure 34, e-g, where the kin head is figured. The determining 

 characteristic of this head is the subfixial element, wliich appears 

 also in the normal form for the kin sign (see fig. 34, a). Again, the 

 coefficient of A6 is like the coefficient of A4 and A5, hence we have 

 recorded here kins. 



The number recorded by the head-variant period glyphs and 

 normal-form numerals in A2-A6 is therefore 9.15.0.0.0; reducing this 

 by means of Table XIII, we have : 



A2= 9X144,000 = 1,296,000 



A3 = 15 X 7, 200 = 108, 000 



A4= OX 360= 



A5= OX 20= 



A6= OX 1= 



1,404,000 

 Deducting from this number all the Calendar Rounds possible, 73 

 (see Table XVI), it may be reduced to 18,460. Applying to this 

 number rules 1 and 2 (pp. 139 and 140, respectively), the day reached 

 will be foimd to be 4 Ahau. Applying rule 3 (p. 141), the position of 

 4 Ahau in the year \\dll be found to be 13 Yax. Therefore the terminal 

 date determined by calculation will be 4 Ahau 13 Yax. 



