
donic & drusy quartz before mentioned, in great quantities _ It also weathers into a great number of small arches which gives the small low round bluffs much the appearance of towers pierced for cannon from some points of view.
Above this stratum and 5 [[in?]] thicker where this is thinnest is another bed of conglomerate (CN no.  ) from 20 to 60 feet thick like No 3 but harder especially toward the top where some argillaceous bands occur. Several miles SE a square topped hill of this rock owes its peculiarly formed apex to the presence of beds (S) of sandstone like those