"The names of the eighteen months of the Yucatecos, together with such interpretations as Don Pio Perez has given us, their order and their correspondence with our year, new style, appear in the following table:
TABLE OF YUCATESE MONTHS.
| 1 Pop, Poop | Mat of Reeds | begins on 16th July, N. S. |
| 2 Uo | Frog | " 5 August |
| 3 Zip | Tree | "25" |
| 4 Zodz | Bat | "14 September |
| 5 Zec | "4 October | |
| 6 Xul | End | "24" |
| 7 Dzeyaxkin | Summer | "13 November |
| 8 Mol | To unite | "3 December |
| 9 Chen | A Well | "23" |
| 10 Yax | First | "12 January |
| 11 Zac | White | "1 February |
| 12 Quej | Deer | "21 " |
| 13 Mac | Lid, cover | "13 March |
| 14 Kankin | Yellow Sun | "2 April |
| 15 Moan | "22" | |
| 16 Pax | Musical instrument | "12 May |
| 17 Kayab | Song | "1 June |
| 18 Cumku | Noise | "21" |
| {Uayebhaab | Bed of year } | the 5 supplementary days} |
| {Xma kaba kit | Days without name} | from 11th to 15th July} |
"The Mexicans counted only by cycles; they designated the termination of a cycle by a hieroglyphic representing a bundle of reeds tied up; and they sometimes designated, by an equal number of small circles, the number of cycles which had elapsed, since the beginning of their era corresponding with the year 1091. But the Yucatecos, besides their cycle of 52 years, had another, containing thirteen periods of twenty or twenty-four years each. These last mentioned periods were called Ajau or Ahau."