318 



AIDS TO THE STUDY OF THE MAYA CODICES. 



This being ascertained, the next step is to determine the true 

 interval between the first days of these columns, taking the numbers 

 attached to them into consideration. Eef erring to our calendar 

 (Table II) and (for reasons which will be given hereafter) using the 

 Muluc column and counting from 4 Ik, as heretofore explained, we 

 find the interval between this and 12 Cauac to be 8 months and 17 

 days; counting in the same way from 13 Cauac, 8 months and 17 

 days more bring us to 7 Cib; 8 months and 17 days more to 10 Oc. 

 So far the iiitnvals liavc bot'n the same: l)ut at this point we find a 

 variation frmii Wn- riili'. as tln' interval hetween 10 Oc and 2 Ezanab 

 (first of the next eolunni) is 7 iiKniths and S days. 



These intervals furnish tlie explanation of the red and black numer- 

 als below the day columns. 



These luimerals. as the reader will observe by reference to Fig. 363 

 (ir the written iiiteiiiretatioii thereof in Table VI, are 8 and 17 under 

 the first live edluiuns. Imt ; and Sunder the sixth column, the red (8 

 under the first five and 7 vmder the sixth) indicating the months and 

 the black (17 under the first five and 8 under the sixth) the days of 

 the intervals. This holds good throi;ghout all that portion of the 

 series running through the lower divisions of Plates 51 to 58, with 

 three exceptions, which will now be pointed out. 



In order to do this it will be necessary to repeat here a part of the 

 series on Plate 516 and part of that on Plate 52b; that is, the two 

 right hand columns of the former and the two left hand columns of 

 the latter, between which is the singular picture shown in the lower 

 left hand corner of our Fig. 364: 



As before stated, the interval between 10 Oc and 2 Ezanab is 7 

 months and 8 days, as indicated by the red and black numerals under 

 the latter. According to the red and black numbers under the column 

 commencing with 11 Cib, the interval between 2 Ezanab and 11 Cib 

 should be 8 months and 17 days, the usual diiference, when, in fact, 

 as we see by counting on the calendar, it is 8 months and 18 days. 

 That this variation cannot be attributed to a mistake on the part of 

 the author or of the artist is evident from the fact that the interval 

 between 11 Cib and 6 Been (first of the next column) is 8 months and 

 17 days and that the difference throughout the rest of the series fol- 

 lows the rule given; that is to say, each is 8 months and 17 days, except 

 at two other jioints whei-e this variation is found and at the regular 



