No. 31 is another maiden, advancing slowly to the right, bearing on her head a seat similar to that carried by No. 30. The foremost leg of the seat still exists, being of marble. The position of the hinder leg is marked by a rivet hole. On each of these stools is a circular object, probably a thick cushion. These two figures have been called Arrhephori, or Ersephori, on the assumption that they are carrying those mystic objects, the nature of which it was forbidden to divulge; but it is doubtful whether the Arrhephori took part in the Panathenaic festival. There is evidence that the priestess of Athenè had two attendants, of whom one was called [Greek: kosmô] (Adorner), and the other [Greek: trapezophoros] (Table-bearer, Harpocration), or [Greek: trapezô] (Hesychius emended), and it has been suggested that Nos. 30, 31 may have these titles, and a corresponding ritual significance. Neither figure, however, carries a table. (Miss Harrison, _Class. Rev._ iii., p. 378; cf. _ibid._, p. 423; and Waldstein, _Journ. of Hellen. Studies_, xi., p. 143). The same names were proposed by C. O. Müller in 1820, but merely on the supposition that two of the Ersephori were thus styled. (Müller, _Minervae Poliadis Sacra_, p. 15.) On the other hand, Diphrophori are mentioned by several ancient authors as being in attendance on the noble Athenian maidens. They were the daughters of aliens, and perhaps inferior rank as well as youth is indicated by the scale on which they are represented. No. 31 is confronted by a large and matronly woman (No. 32), who raises her right hand to the under side of the chair. Archæologists have been uncertain whether the woman (No. 32) has just placed the chairs on the heads of the maidens, or is just about to remove them. There can be little doubt, however, that No. 31, if we consider the position of her feet, has hardly ceased approaching to No. 32, who is just raising her hands to lift down the chair (cf. Flasch, _Zum Parthenonfries_, p. 83). The left hand instinctively prevents the himation being displaced by the raising of the right arm.