"All that supposition is based on her telling you the truth," Cynthia pointed out.
This is a pure supposition inconsistent with chronology, and based only on a misinterpretation of a passage in an old book.
Corroborative facts have been gathered from other parts of the country, and, although more evidence is required, such as we have is strongly in favour of the supposition that the London Stone is a prehistoric monument.
This supposition was shown to be incorrect, and the nature of the new element was ascertained.
There is, however, some evidence in favour of the supposition that the wall was built at a much earlier date.