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Between this ridge and the next one north is a gully, 
spanned by aniron bridge. The gully represents a fault by 
which the cherty crinoid beds are again downthrown on 
the north side. In the lowest layers on the north side of 
the iron bridge, crinoids may be obtained from the shale 
between the layers of limestone. 
PARLIAMENT HILL. 
Faults in the Trenton.—In descending to the water’s 
edge from the Supreme Court at the western end of Par- 
liament hill, the first outcrop is an exposure of the rather 
thin-bedded limestone of the Cystid zone. Following the 
shore westward other outcrops of the Cystid beds appear, 
but instead of being horizontal, as at the first outcrop, 
they dip to the south. One hundred feet (30 m.) beyond 
the pier, a fault, with an upthrow on the western side, 
brings the cherty Crinoid beds up against the Cystid beds. 
This fault is probably the continuation of one of several 
faults which are visible on the north side of the river, and 
is probably the same fault which can be traced through 
Hull into the Axe Factory quarry near Hull station. This 
fault, which brings up the Cystid layers again, has a four- 
foot crushed zone, full of fragments of limestone cemented 
by very coarse calcite, at the contact of the two zones. 
TETREAUVILLE AND “THE HEAP.”’ 
Lowville, Black River, and Trenton.—From Tetreauville, 
which is a station on the Hull Electric Railway, a road leads 
down to Ottawa river. The strata to the right of the end 
of this road are mostly Lowville with Tetradium cellulosum 
and opposite the end of the road the basal beds of the Black 
River with Columnaria halli may be seen. 
Following these beds down stream for a few rods they 
are seen to be very fossiliferous, and good specimens may 
be obtained by breaking up the limestone. Subulites elon- 
gatus, Trochonema umbilicatum, Bumastus miller, Illenus 
conradi, and Thaleops ovata are some of the more common 
fossils. 
This outcrop is interrupted by the Hull-Gloucester 
fault, which crosses at this point. Beyond the first fault 
and along the shore, the cherty beds of the Trenton are ex- 
posed. 
