[cont.] "..."That Cornwall once extended further west may be inferred from hence, that about midway between the Land's End and Scilly are rocks called in Cornish Lethowsow; by the English, Seven-stones.
"The Cornish call the places within the stones Tregva, -- i.e., a dwelling;--and it has been reported that windows and other stuff have been fished up, and that fishermen still see tops of houses under water. From the Land's End to Scilly, a tract of thirty miles, is an equal depth of water, and the bottom of the sea a plain, level surface. St Michael's Mount is called in Cornish, Careg cowse in clowse--i.e., the hoary rock in the wood. Large trees with roots and bodies have been driven in by the sea of late years between St Michael's Mount and Penzance; and tradition says that at the time of the inundation which made the separation, one Trevelyan swam from thence on horseback; and in memory thereof the family, now in Somersetshire, bears gules a horse argent, from a less wavy argent, and azure, issuing out of a sea proper,"--Gough's Camden, vol. 1. p. 15...... [cont.]"