64 SILUEIA. [Chap. IV. 
and altered rocks, indeed, constitute some of the highest points of the 
Caradoc Hills. The annexed view, taken from the eastern flank of the 
The Lawley. Caer Caradoc. Hope Bowdler. Broccard's Castle. Eagleath. 
The Caradoc Eange (sketched by Mrs. Stackhouse Acton). 
Longmynd, will convey to the reader a good idea of the outline of this 
eruptive ridge, which trends from the hill of Eagleath on the S.S.W., to 
the Lawley on the N.N.E., the intermediate hills being those of 
Hazier and Helmeth ; whilst the chief and loftiest mass, or that of Caer 
Caradoc, gives its name to the whole range. No stronger proof of the 
great break which here occurs can be given than that on the western 
flanks of the eruptive ridge, or between the Caradoc formation and the 
Longmynd, a large mass of Upper Silurian (Wenlock) limestone has been 
thrown into a vertical and insulated position at Botville* : it is thus 
wedged in between the Caradoc Sandstone and the Longmynd rocks — the 
base of the whole sedimentary series (see the following woodcut). 
Eelations of Caradoc Sandstone to the Upper Silurian Eocks in Shropshire. 
W.W. S.E. 
Botville. Caer Caradoc. Wenlock Edge. 
d* Mr c * c * * c * c d e f 
Mr Eruptive rocks, c*. Caradoc Sandstone altered by eruptive rocks, c. Caradoc 
Formation, surmounted by Llandovery Limestone, d. Wenlock rocks, e. Ludlow 
rocks. /. Old Eed Sandstone, d*. Vertical Wenlock Limestone (Botville). 
Striking masses of the altered sandstone are exposed at Cardington, 
Hope Bowdler, and other places ; and this small general section explains 
the facts. 
But, notwithstanding all the disorder and change resulting both from a 
* See Sil. Syst. p. 231, and pi. 31. f. 4. 
