Aids to the Study of the Maya Codices / Sixth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1884-85, Government Printing Office, Washington, 1888, pages 253-372

by Cyrus Thomas

Twenty year periods.			Years.			Months.			Days.
				15			3			0
				5			1			0
	1			0			4			0
										2
	2			0			8			0		Third column lower division, Plate 71.
	1			0			4			0
	3			0			12			0		Second column, lower division, Plate 71.
	1			0			4			0
	4			0			16			0		First column, lower division, Plate 71.
	1			0			4			0
	5			1			2			0		Sixth column, lower division, Plate 70.
	1			0			4			0
	6			1			6			0		Fifth column, lower division, Plate 70.

This series does not end at this point, but is continued in the lines immediately above, which are as follows:

Table XXV.—Table showing relations between Plates 70 and 71.

Plate 70.		Plate 71.
5th column.	6th column.	1st column.	2d column.	3d column.	4th column.	5th column.
1
0	8(?)	15	13	10	9	7
				XII
12	1	3	2	2	2	1
				II
3	10	6	16	4	0	10
				XII
0	0	0	0	(?)	0	0
IV Eb.	IV Eb.	IV Eb.	IV Eb.	IV Eb.	IV Eb.	IV Eb.

Adding the difference, 1, 0, 4, 0, to the final result of the preceding addition we obtain the figures of the right hand column (fifth column, Plate 71) of this series:

	6			1			6			0
	1			0			4			0
	7			1			10			0

To obtain the figures of the fourth column this difference must be doubled, thus

	7			1			10			0
	2			0			8			0
	9			2			0			0

To obtain the black numbers of the next (third) column, the lower cipher symbol of which is wanting, we add the former difference:

	9			2			0			0
	1			0			4			0
	10			2			4			0