404 BUREAU OF AMERICAN ETHNOLOGY [bull. 28 



eighth day of the eighteenth month in the year 9 Ix it is, moreover, 6 

 years and 10 days; consequently 2,200 days, and, as we saw above, 

 this 2,200 surrounded by a circle is actuall}^ set down with the three 

 dates, and designates the difference between the two large numbers, 

 which are found above it. 



On page 31, lowest line of the upper third, IV 17; 18th month is 

 twice given, the Avriter having evidently forgotten the 8 before the 

 month sign. As far as we now see, only the known zero point for the 

 large numbers occurring above it is given. Here, as in many cases, we 

 should obtain more exact knowledge if the upper line of the page had 

 not been destroyed. 



Pages 4G to 50, of which I have spoken more particularly in my 

 Erlauterungen, pages 34 to 35 and 65 to 66 (although there are still 

 several errors in the statements of the days and the months in the 

 last-named passage), contain no fewer than 780 such calendar dates, 

 which woidd seem at first sight quite impossible, but is actually the 

 case. For at the top, on the left, each page contains fifty-two simple 

 entries of da^^s, consisting of the number of the week day and the day 

 sign, but underneath, in three lines separated from each other, are 

 twelve dates in all, consisting of the month sign wnth the jjreceding 

 day number. Each of these fifty-two day entries, together with each 

 of the three entries standing directly beneath, constitute a complete 

 and perfectly appropriate calendar date, and these separate dates show 

 the correct interval of 90, 250, 8, and 236 days, demonstrated in my 

 Erlauterungen to represent the apparent revolution of Venus. Each 

 page, therefore, contains 52X3, or 156 calendar dates, and the five 

 pages together have 780. These are arranged in thirty-nine lines 

 having four dates on each page; but the lines are always to be read 

 straight through all the five pages. As I am not able to reproduce the 

 thirty-nine lines here, I will, at least, give the first one, consisting of 

 twenty terms : 



III 13; 4, 7th month. XII 5; 6, 17th month. II 5: 6, 2d month. 

 II 3; 14, 11th month. I 1; 17, 10th month. X 13; 14, 2d month. 

 V 13; 19, 5th month. XIII 11; 7, 15th month. XII 9; 10, 14th month. 



XIII 1; 7, 6th month. Ill 1; 12. 9th month. XI 19: 20, 18th mcnth. 



II 17; 3, 18th month. XI 9; 0, 10th month. - I 9; 5, 13th month. 



I 7; 8, 4th month. XIII 5; 11, 3d month. IX 17: 13, 13th month. 



IV 17; 18, 16th month. XII 15; 1, 8th month. 



The item 0, 10th month, probably erroneously written for 20. 10th 

 month, in the twelfth place, is, of course, the same as 20, 9th month. 

 NoAv let the years be calculated in which these twenty dates must 

 occur and we have the following: 



11 Ix, 11 Ix, 12 Cauac, 12 Cauac, 12 Gauac, 13 Kan. 13 Kan, 13 Kan. 1 

 Muluc, 1 Muluc, 2 Ix, 2 Ix, 3 Cauac, 3 Cauac, 4 Kan, 4 Kan, 4 Kan, 4 Kan, 

 5 Muluc, 5 Muluc. 



