. Annual report of the Bureau of American Ethnology to the Secretary of the Smithsonian Institution. ers attached. It may as well be stated here, to prevent confusionor misunderstanding in regard to our use of terms, that for conveniencein our comparisons Mr Goodmans names of these several symbols andthe time periods he supposes them to represent will be used, although 714 MAYAN CALENDAR SYSTEMS [ 19 I am tirmly convinced, for reasons which will be shown hereafter,that they are nothing more than orders of units or , when they are spoken of as time periods, or by th
. Annual report of the Bureau of American Ethnology to the Secretary of the Smithsonian Institution. ers attached. It may as well be stated here, to prevent confusionor misunderstanding in regard to our use of terms, that for conveniencein our comparisons Mr Goodmans names of these several symbols andthe time periods he supposes them to represent will be used, although 714 MAYAN CALENDAR SYSTEMS [ 19 I am tirmly convinced, for reasons which will be shown hereafter,that they are nothing more than orders of units or , when they are spoken of as time periods, or by the namesgiven, this must be borne in mind. The typical and usual form of the ahau is shown in the first threeglyphs of figure 9 {a, i, c). This symbol denotes 360 days, whichmust be multiplied hj the numeral—usually at the side—to olitainthe full number of days indicated. The name ahau as here used nuistnot be confounded with tlie day-name Ahau. The use of the samename for two diflerent purposes is unfortunate and confusing. The usual form of the katun is shown in the first two glyphs of fig-. Iax Kayiib Cumhu Fig. 14—The month symbols. Uayeb ure 1(1 ((/, h). The attached numeral, if 1 or 2, is frequently at thetop, though usually at the side. As this symbol represents 7,200days, the numl)er of dajs indicated is 7,200 multiplied by the attachednumeral. The usual cycle symbol is shown by the first glyph of figure 11 (a).As the cycle is 144,000 days, 144,000 must be multiplied l)y theattached numeral to obtain the total number of days. The great cycle will be referred to hereafter, and the other forms ofthe chuen, ahau, katun, and cjcle will ))e discussed as the series bywhich their values are determined are examined. 1 The day name is always written with a capital, the ahau denoting a period with a small letter. THOMAS] NUMERAL SYSTEMS 715 TIME SERIES IN THE CODICES AND INSCRIPTIONSThe Dresden Codex As the Dresden codex is now so generally known, it will be madethe point of
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