Possibly the last 7 glyphs in line a9 are to be considered as the beginning of what follows:

Ca9-21	Ca9-22
November 25 (329)	26

Ca9-23	Ca9-24	Ca9-25	Ca9-26
November 27	28	29	30

Ca9-27

December 1 (335)

Ca10-1 (256)	Ca10-2	Ca10-3
December 2	3	4

A complicated set of 10 groups arrives, possibly a 'calendar' with 10 periods related to the positions of Sun. It streches from Ca10-4 (glyph 259) to Ca12-8 and covers 65 glyphs (or counting from the heliacal rising of Antares for 75 days):

1
	Ca10-4	Ca10-5 (260)
	December 5	6 (340)

Ca10-6	Ca10-7	Ca10-8	Ca10-9 (264)	Ca10-10	Ca10-11	Ca10-12
December 7	8	9	10 (344)	11	12	13

The dot in Ca10-6 is probably meant to point out where the 1st day beyond number 260 (counted from equinox) is beginning. North of the equator full stops mark ends and south of the equator it could be the opposite.

2
	Ca10-13 (268)	Ca10-14
	December 14 (348)	15

Ca10-15	Ca10-16	Ca10-17 (272)	Ca10-18	Ca10-19
December 16	17	18	19	20 (354)

3
	Ca10-20 (275)	Ca10-21
	December 21 (355)	22

Ca10-22	Ca10-23	Ca10-24	Ca10-25 (280)	Ca10-26	Ca10-27
December 23	24	25	26 (360)	27	28

The form of the front central element in Ca10-24 resembles that in Ca7-23 (where 72 * 3 = 216):

Line Ca10 has 29 glyphs and the last 2 belong in period 4 - see next page.