), which, as we shall see presently, is the essential element of the head for 8 (fig. [52], a-f). Except for their forehead ornaments the heads for 1 and 8 are almost identical, and great care must be exercised in order to avoid mistaking one for the other.
The head for 2 (fig. [51], f, g) has been found only twice in the inscriptions—on Lintel 2 at Piedras Negras and on the tablet in the Temple of the Initial Series at Holactun. The oval at the top of the head seems to be the only element these two forms have in common, and the writer therefore accepts this element as the essential characteristic of the head for 2, admitting at the same time that the evidence is insufficient.
Fig. 52. Head-variant numerals 8 to 13, inclusive.
The head for 3 is shown in figure [51], h, i. Its determining characteristic is the fillet, or headdress.
The head for 4 is shown in figure [51], j-m. It is to be distinguished by its large prominent eye and square irid (*
