84 wilson : marine bands in millstone grit. 
Lamellibranchiata. 
Chcenocardiola Footii. 
Aviculopecten carboniferus. 
Pterinopecten papyraceus. 
Pseudamusium fibrillosum. 
Posidoniella Icevis. 
Posidoniella Kirkmani. 
Cephalopoda. 
Glyphioceras hilingue. 
Glyphioceras micronotum. 
Orthoceras [striatulum) ? 
Orthoceras Morrisianum. 
Another locality where I have found marine bands is near 
Fewston. Here a tunnel has lately been driven from Kettlesing 
Bottom to Swinsty Reservoir for the purpose of bringing the 
Colsterdale water to Swinsty, whence it is conducted to Leeds. 
The tunnel is about three miles long and passes tlirough 
rocks of Millstone Grit age for the whole of the distance, the 
general structure of the country being that of a broad anticline 
whose axis is at right angles to the direction of the tunnel. 
The tunnelling has been carried out from both ends and also 
from a series of intermediate shafts. From the spoil heaps at 
these places I have obtained a large number of fossils. 
Number 1 Shaft, at the south end of the tunnel. — Here the 
material exposed was a dark blue shale, which rapidly weathered 
to a friable mass, and contained a large number of Clay Ironstone 
nodules, which often enclosed fossils. 
From the general mass of the shale I obtained the following 
fossils : — 
Brachiopoda. 
Lingula mytiloides. 
Lamellibranchiata. 
Posidoniella Icevis. 
Myalina peralata. 
Pseudamusium fibrillosum. 
