35 
resemblance. Dr. Harley, who has microscopically 
examined the bone bed near Ludlow, has shown that 
nearly one half of its fossil contents are fragments of 
crustaceans ; he has also observed a minute kind of 
organism, the same as the Conodonts of Pander. The 
I remainder are the usual fish defences or spines; portions 
of Pteraspis, and fish jaws with the teeth affixed to 
them, have also been found, but are rare. The Norton 
bone bed is overlaid by about three feet of Upper 
Ludlow rock. I have not observed either the Pterygotus 
or Platyschisma beds here. A very thin section of 
Down ton covers the Upper Ludlow at this spot, contain- 
: ing Lingula cornea , and Beyrichia Klodini , which 
thickens out lower dowm, until, as in the quarry, at the 
lowest end of the lane, it is in sufficient quantity to be 
i extensively worked for building purposes. 
In the main road, about fifty yards from the bone bed, 
is a small quarry from whence I have collected Homa~ 
lonotus , and it contains a stratum full of Pterinea 
retroflexa, very perfect; here, too, are found in the upper 
beds, occasional specimens of Calymene Blumenbachii , 
and frequently large Ling idee something like L. Lewisii. 
There are several other profitable sections near the 
village, containing an abundance of fossils. 
Ride No. II. 
Near to Aymestry, a small village about ten miles 
from Ludlow, are several quarries of the limestone 
named after this village, containing the corals Favosites 
alveolaris , Stenopera fibrosa , Petraia bina , and Palceo- 
cychus porpita ; also the shells Spirifer plicatellus and 
Athyris tumida, besides nearly all the usual kinds. 
This formation can be readily distinguished by the 
honeycomb structure of the face of the rock, where it has 
been exposed for some length of time, and is* probably 
