Too many uncertainties makes it impossible (at least for the moment) to make a definite statement as to the structure of the beginning of side a of H. It should be noted, however, that Ha5-18 is a unique variant (both in H and G) of the no-legs-honu which, we have learnt, probably indicates solstice. Of the 45 honu glyphs in H listed in the catalogue there are 9 (redmarked below) such 'solstice honu' glyphs:

Ha1-9	Ha1-13	Ha1-22	Ha5-18	Ha6-102	Ha6-125
Ha6-144	Ha7-5	Ha7-13	Ha7-104	Ha8-14	Ha8-34
Ha10-5	Ha10-6	Ha10-35	Ha10-109	Ha11-106	Ha11-109
Ha11-112	Ha11-121	Ha11-129	Hb2-2	Hb2-35	Hb3-3
Hb5-10	Hb5-54	Hb6-4	Hb6-6	Hb6-45	Hb7-7
Hb7-10	Hb7-13	Hb7-32	Hb7-39	Hb7-50	Hb8-114
Hb8-117	Hb8-136	Hb9-1	Hb9-2	Hb10-4	Hb11-7
Hb11-47	Hb11-48	Hb12-45

It ought to be valuable if we could use these 'solstice honu' to map the overall structure of the H text, and we will therefore make a little detour for that purpose here.