17 
(14) A dark grey limestone, consisting of beds alternately fine and coarse 
grained. The latter become friable upon weathering and increase in thickness 
and number downwards. This includes a foot bed of cross bedded sandstone 
with a dolomitic cement. A few scattered chert nodules occur. 75 feet 
Fossils are rare, though in the lower part of this succession of beds is a 
rather persistent bed of Litho&trotion pennsyhanicum. 
(15) Grey limestone, partly concealed, with scattered chert concretions. 
The middle of this is conspicuous for its 3-foot bed of strongly crossbedded, fine- 
grained sandstone, cemented by a calcareous cement and with many calcareous 
rhombs 55 feet 
The surface upon which the crossbedded stratum rests is very irregular 
and hummocky, the irregularities rising to a height of from 1 to 3 inches. 
In the lowest part especially are many rounded pebbles of limestone, 1 to 2 
inches in diameter, over which the laminae arch conspicuously. A few 
fossils were found in this crossbedded material, mostly in pockets. Stylolites 
are present in the limestone but were not noted in the sandstone. 
(16) Alternating fine and coarse-grained limestones, the former the more 
abundant. Partly concealed 50 feet 
Some small limestone concretions occur and in the middle beds are 
scattered chert nodules. Immediately below the lowest chert-bearing bed 
is a 2-foot bed of coarsely granular limestone very full of cup corals, lying 
at all angles but mostly parallel with the bedding plane. 
(17) Alternating fine and coarse-grained limestone down to and including a 
6-foot bryozoan bed 43 feet 
This basal bdd is very rich in Bryozoa, especially Fenestelloids, but it 
is almost impossible to secure identifiable specimens. They give to the edge 
of the bed a finely corrugated appearance. Few brachiopods were noted. 
(18) A dark grey limestone, where exposed 400 feet 
Much of the lower half of this locality is concealed. Slightly below the 
middle is a succession of beds containing much chert which causes them 
to form a prominent ridge. About 100 feet below the top of the locality is 
a 4-foot bed very full of Spirifers and bryozoans, a few of which continue 
to the base of the locality. The majority of the beds are very coarse 
grained, a typical calcarenite, being composed largely or entirely of frag- 
ments of crinoid joints; no calices were found though search was made for 
them. These calcarenites are pockety, with many irregular cavities 
averaging a half inch in length and an eighth or sixteenth in depth; the 
rock, however, is not dolomitic as it disappears entirely with rapid efferves- 
cence in cold dilute hydrochloric acid. Stylolites are abundant in both 
the finer and the coarser beds. 
(19) Alternating beds of fine and coarse-grained, dark grey limestone and 
chert concretions. These concretions occurring directly beneath the friable, 
granular beds of locality 18 cause the formation of a prominent ridge, both below 
the western limb of the anticline upon the southern face of mount Astley and 
directly east of the fold 75 feet 
The following gives this locality in greater detail. The subdivision, 
as heretofore, is from above downward. 
(a) Fine-grained limestone with scattered chert concretions 21 feet 
(b) Coarse-grained. No chert. 27 feet 
(c) Fine-grained. Chert concretions rather abundant. Fossils very few. . . 15 feet 
(d) Coarse-grained limestone, composed mostly of crinoid joints. No chert. 7 feet 
(e) Fine-grained, with rather numerous chert nodules 6 feet 
