[7] This line, but for the passage in H describing the building of the wall, would naturally imply that the wall had been put round the ships from the first, as an essential precaution. It is likely enough that this was the original idea; the explanation in H that it was built in a sudden emergency being an afterthought when the whole stratum containing the wall came to be incorporated with the Menis and Diomedeia, which know nothing of it.