_Dragons_ (Vol. iii., p. 40.).--I think the _Draco_ of the Crusaders' times
must have been the _Boa constrictor_. If you will look into St. Jerome's
_Vitas Patrum_, you will find that he mentions the trail of a "draco" seen
in the sand in the Desert, which appeared as if a _great beam_ had been
dragged along. I think it not likely that a crocodile would have {158}
ventured so far from the banks of the Nile as to be seen in the Desert.