The Geology of Cincinnatt. 77 
building stone; they do not dress well, and are usually so 
situated as not to be worked with profit. In Newport, Ken- 
tucky, they are about 300 feet above the Cincinnati city 
datum, low-water mark of the Ohio river, which is 432 feet 
above tide. | 
The horizon of the Strophomena planoconvexa, which has a 
very limited vertical range, is regarded as marking the 
boundary between the Mt. Hope beds and the succeeding 
Fairmount beds. Limestones are more abundant than in the 
upper Utica, but not so abundant as in the Fairmount beds, 
and these, and the intervening shales as well, are often 
inclined to be sandy. Occasionally there are layers showing 
the fossils as casts upon weathering. The few feet of lime- 
stones and intervening shales capping the upper Utica beds 
are crowded with bryozoa of about the same kinds as the 
beds just below them, but fossils soon become scarcer, and as 
a whole these beds appear to have a rather meager fauna. 
This may be only apparent, however, due to their rarely 
being exposed. The name Mt. Hope beds has been given 
from.an exposure found on the southeastern slope of Price 
Hill, known as Mt. Hope, where the strata are more clayey 
and less sandy than usual and the fossils better preserved. 
Although the Amplexopora septosa occurs rather sparingly in 
the upper Utica, it is very characteristic and abundant and 
finely developed in these beds, and so has been selected for 
the faunal designation. 
In addition to the species ranging through the Lorraine, 
the following are found in these beds: 
SPONGIZA. 
Anomalospongia reticulata Ulrich. 
BRYOZOA. 
Amplexoporaseptosa (Ulrich).(c) | Constellaria constellata-prominens 
Batostomia sp. Ulrich. 
Callopora dalei (Edwards and Dicranopora emacerata (Nichol- 
Haime). (c) son). 
Callopora nodulosa (Nicholson). Heterotrypa sp. 
“ . subplana Ulrich. Monticulipora mammiulata D’Or- 
Constellaria coustellata-plana bigny. 
Ulrich. Peronopora vera Ulrich. (c) 
29 
