* * * * * {x} List of Tables Page TABLE I. The twenty Maya day names 37 II. Sequence of Maya days 42 III. The divisions of the Maya year 45 IV. Positions of days at the end of a year 48 V. Relative positions of days beginning Maya years 53 VI. Positions of days in divisions of Maya year 55 VII. Positions of days in divisions of Maya year according to Maya notation 55 VIII. The Maya time-periods 62 IX. Sequence of katuns in u kahlay katunob 80 X. Characteristics of head-variant numerals 0-19, inclusive 103 XI. Sequence of twenty consecutive dates in the month Pop 111 XII. Comparison of the two methods of numeration 133 XIII. Values of higher periods in terms of lowest, in inscriptions 135 XIV. Values of higher periods in terms of lowest, in codices 135 XV. The 365 positions in the Maya year 141 XVI. 80 Calendar Rounds expressed in Arabic and Maya notation 143 XVII. Interrelationship of dates on Stelæ E, F, and J and Zoömorph G, Quirigua 239 {xi} ILLUSTRATIONS