220 APPROACH TO PARNASSUS. 
CHAP, perhaps originally a tower of observation and 
. defence, upon the frontier of Pliucis. It is of a 
circular form ; built, like the walls of Tiryns, 
in the Cyclopean style of structure, with huge 
stones which the Antients had the art of 
placing together upon the acclivities of rocks, 
without any cement, in the most regular 
manner. We ascended to examine it nearer, 
and were struck with the enterprise and skill 
manifested in the workmanship. It agrees, in 
all its circumstances, with what Pausanias hag 
said of the place where (Edipus murdered his 
father ; for this happened upon the frontier of 
Phocis, near to a spot where three roads met 
— the roads leading from Daulis, Lebadea, and 
Delphi; just before entering the military pass, 
or defile of Parnassus, called Schiste, or the way 
cut\ Upon the left hand, in descending, is an 
an tient fountain. The building upon the rock, 
although very near to this fountain, is not 
visible from it; because the rock only is seen 
on this side : but the traveller vv ishing to find it, 
may be guided by its bearing from the fountain, 
which is E. X. e. ; the road from Lebadea to 
Delphi continuing, as before, north-west. 
After we had crossed this valley, we began to 
