360th day of the year 19 Cumhu last day of the month Cumhu. 361st day of the year 0 Uayeb first day of Uayeb. 362d day of the year 1 Uayeb 363d day of the year 2 Uayeb 364th day of the year 3 Uayeb 365th day of the year 4 Uayeb last day of Uayeb and of the year. 1st day of next year 0 Pop first day of the month Pop, and of the next year. 2d day of next year 1 Pop 3d day of next year 2 Pop 4th day of next year 3 Pop 5th day of next year 4 Pop 6th day of next year 5 Pop 7th day of next year 6 Pop 8th day of next year 7 Pop 9th day of next year 8 Pop 10th day of next year 9 Pop 11th day of next year 10 Pop 12th day of next year 11 Pop 13th day of next year 12 Pop 14th day of next year 13 Pop 15th day of next year 14 Pop 16th day of next year 15 Pop 17th day of next year 16 Pop 18th day of next year 17 Pop 19th day of next year 18 Pop 20th day of next year 19 Pop last day of the month Pop. 21st day of next year 0 Uo first day of the month Uo. 22d day of next year 1 Uo etc. etc. The signs for the first four months, Pop, Uo, Zip, and Zotz, show a convincing similarity in both the inscriptions and the codices. The essential elements of Pop (figs. 19, _a_, and 20, _a_) are the crossed bands and the _kin_ sign. The latter is found in both the forms figured, though only a part of the former appears in figure 20, a. Uo has two forms in the inscriptions (see fig. 19, _b_, _c_),[32] which are, however, very similar to each other as well as to the corresponding forms in the codices (fig. 20, _b_, _c_). The glyphs for the month Zip are identical in both figures 19, _d_, and 20, d. The grotesque heads for Zotz in figures 19, _e_, _f_,[33] and 20, _e_, are also similar to each other. The essential {49} characteristic seems to be the prominent upturned and flaring nose. The forms for Tzec (figs. 19, _g_, _h_, and 20, _f_) show only a very general similarity, and those for Xul, the next month, are even more unlike. The only sign for Xul in the inscriptions (fig. 19, _i_, _j_) bears very little resemblance to the common form for this month in the codices (fig. 20, _g_), though it is not unlike the variant in _h_, figure 20. The essential characteristic seems to be the familiar ear and the small mouth, shown in the inscription as an oval and in the codices as a hook surrounded with dots. [Illustration: FIG. 19. The month signs in the inscriptions.] {50} [Illustration: FIG. 20. The month signs in the codices.]