25 



These beds are almost vertical, and the shale lying aljove them is 

 ■well worth a close examination, as it contains, with abundance of 

 Trinucleus concentricus, several other rare ov new Trilobites, — and 

 abundance of Beyrichia coniplicata. There has since been found 

 here a new Beyrichia, which Mr. Rlpeut Jones has called B. 

 "WilkinsonL "We then crossed the Onny, and after passing the 

 thick hard beds of Horderley Sandstone, which in some of its 

 layers contains abundantly BcUerophon bilobatus, Leptaina serricea, 

 Strophomena grandis, and Modiolojisis orbicularis, — and, growing 

 among the loose stones, great quantities of the lovely Polypodium 

 dryopteris, or oak fern, — we came to a road cutting leading to 

 Cheney Longueville, where in one stratum is found the curious 

 Sphajrospongia hospitalis, so named by Mb, Salter in commemora- 

 tion of the hospitality displayed by the kind hearted DupPjV Duppa, 

 Esq. a little lower down the river, we came to the Trinucleus 

 sliales, at the well-known Onny section, where the slight uncon- 

 formableness of the superimposed Llandovery beds is seen. These 

 shales are full of heads and tails of Trinucleus, with rarely an 

 entire one, and also occasionally a head of Amphyx pennatus, and 

 part of the head of Eemopleurides radians. The Upper Llandovery 

 beds overlying these shales were inaccessible without a wetting. 

 They are very thin here, and are succeeded by the Purple shales, 

 forming here the lowest part of the Wenlock shale. In them have 

 been found tails of Cheirurus bimucronatus, but our party were 

 not so fortunate as to find any. It was now time to return to 

 Ludlow after a very pleasant day. 



On the 24th we took carriages to Mocktre, where thorc is a 

 remarkably fine section through the L^pper Ludlow and Ayracstiy 

 Limestone, down into tlie Lower Ludlow — in which latter bed sucli 

 fine specimens of Lituites and Phragmoceras, and also Ischadites 

 Konigii have been found. Our labours were not, however, well 

 rewarded, and we went on to Leintwardine. Here we dropped 

 some of our party, who went to look for Star-fish in the celebrated 

 Church-hill quarry, but I am grieved to sny, that, partly from \\aut 



