HUGHES : INGLEBOROUGH. 
281 
Liihostrotion irregular e (PhilL). 
L. hasaltiforme (C. and Ph.). 
L. junceum (Flem.). 
Oyathophyllum turhinaium. 
Dibunophyllum sp. 
Syringopora ramulosa (Goldf.) 
Clisiophyllum. 
Pinna flexicostata. 
P. flahelliformis (Mart.). 
Lamellibranch like Anthracosia. 
Fenestella quadridecimalis. 
F. Morrisii. 
Spirobis carhonarius. 
Bcllerophon. 
Naticopsis. 
Orthoceras. 
In the bed of the stream above Hall Pot Producta 
gigantea occurs in great abundance and of great size, and 
there is also the same variety of P. costata, with very 
strong longitudinal ribs, which we noticed about the same 
horizon in the bed of the stream below Farrer's Shooting Box. 
We have here also, near the mouth of the chasm, the same 
thin band of almond-like concretions coating organisms which 
we found below Farrer's Shooting Box. Above Hull Pot the 
black limestone, with Producta gigantea, is exposed in the bed 
of the stream, and the large white shells lying back downward 
in the black shaley rock explain the local name, " horse shoe 
limestones," by which this and similar beds are known in the 
dales, and remind us of the " Rocca delle Stampe " above Tre- 
mezzo, on the Lake of Como, where sections of the great Megalodon 
produce a similar effect, or of the " Versteinerte Herzen " or 
" Hirsch tritte " of the German Dachstein. 
In Fell Close Sike, 700 yards north of Farrer's Shooting Box, 
and due west of Simon Nook, we find 35 feet of black limestone 
with chert and large Productas, below which shale is seen to six 
feet in thickness, and then more black limestone just above where 
the water enters the swallow hole. Many years ago Townsend, 
M. Hall and I collected a large number of fossils from the black 
