The two similar hieroglyphs 5 and 9, which have the following form, are especially worthy of consideration:-- [Illustration] The part on the right recalls by its trisection the sign _r_, which I regard as the week of 13 days and, in fact, the interval between the two hieroglyphs is 13 days. On the left is the inverted figure of a person in a squatting attitude, the head surrounded by stars as on pages 57b and 58b and a sign on the back which may be a suggestion of the sun-glyph. In this figure, which occurs also in the Tro-Cort. and in the inscriptions, I see the planet Mercury and I believe that that planet's retrogression (which lasts 17-18 days) or disappearance into the light of the sun during this week, is the subject of this passage. 7 and 8 are the sign for D with the usual Ahau, and 11 and 12 are the hieroglyphs of the death-god A. Instead of three pictures there is only one here, viz:--a woman with nose-peg, sitting on a mat and apparently waiting for something. We also find figures sitting on mats elsewhere, for example on pages 7b and 68b. Page 21b. VII VII 7 I 7 VIII 7 II 5 VII Oc Ahau Cib Cimi Ik Eb Lamat Ezanab Ix Kan. This is also a Tonalamatl of 10 parts (10 × 26). The first column should be read first from top to bottom and then the second. The days are exactly the same as on page 21a, and here too Cimi and Eb have changed places. The hieroglyphs run thus:-- 1 5 6 9 13 2 7 8 10 14 3 11 15 4 12 16. The signs forming the hieroglyphs into groups are, in addition to the cross in 2, 6, 10 and 14, the heads in 1, 5, 9 and 13 with an Akbal sign (indistinct in 9) which, by the lock of hair in 5, 9 and 13, refer to a woman. This lock of hair is replaced by a hand in 1. Sign 3, with which _m_ in 4 is associated as a determinative, shows that the first group ought to have a picture of the black god L grouped with a female figure. The second group is the only one with a picture. On the right there is a female figure, which, judging by the headdress, we have already met on page 19a. Opposite her sits the dog which we saw on page 13c. Here (in sign 7), as on page 13c, the hieroglyph of the dog is combined with a Cimi sign, and this hieroglyph is repeated in 8 with the sign _c_, which is so closely allied to Cimi. For the third group the god A should have been represented with the woman, as is proved by sign 11 so peculiarly combined with _r_ as a superfix. To this hieroglyph _a_ is added, doubtless referring to the good days, as if merely to fill space. The hieroglyphs of the fourth group do not, I think, convey a clear idea as to which deity belongs here. His sign is 15, which is compounded of Manik and Chuen with a superfix, nor does the Cimi added in 16 shed light on the subject. As for 15 we have already found it on page 13c with the prefixed 4, which I find prefixed in this way in at least 12 different signs.