[ IS ] 
the bafaltine hills of Auvergne and Velay. Whole cities 
are built upon them; a remarkable inftance of which, 
among others, occurs in the epifcopal city of St. Flour in 
Upper Auvergne, which covers the fummit of a bafaltine 
hill, and boalts a Giants Caufeway for its foundation. 
This is more particularly feen at the fouth-eaft corner of 
the hill, above the bridge, and on the outfide, under the 
wall of the town; which circumilances I mention, in cafe 
the lame curiolity fliould ever lead any other traveller 
into thofe parts. As St. Flour is confined to the ifolated 
lummit of a hill,, and is very ciofely built, the circumfe- 
rence of the walls fcarcely exceeds much above a mile ; 
but the fame caufeway continues from under the town, 
on the north fide, to a confiderable diftance through the 
remaining lower part of the fame hill, upon which the 
hofpital of the town is built. Under this hofpital to the 
weft, and by the fide of a road leading down into the 
valley from the town, the caufeway is quite open to view, 
for a great extent, prefenting the m.oft confiderable fuit, 
or continued range, of high columns, that! faw through- 
out the whole tour. Including the continuation of this 
caufeway, under the town, and the remaining part of the 
hill, it forms an aggregate of columns, which, for extent 
and importance, may almoft be compared with the fa- 
mous Giants Caufeway in Ireland; with this fignal ad- 
vantage in favour of the Auvergne, group, that it affords 
the foundation to a confiderable city. The columns of 
St. Flour differ alfo from any I have yet feen.. Among, 
other fingularities, which I flrall not confider at prefent, 
I obferved,; 
