11 



SALTrfs su~estions, that they will do the Club a great seiyce it 

 tv ^1 hS. the .Laps on which the facts have been so noted, to 

 :S MeeW. i.> »de. that the. not. - -^XT - 

 and criticised, and the result recorded on a map bclon„m„ 



't twithsta^ding aU the attention which ha, '^^^^iTl 

 raid to the subject ot the Old Bed Sandstone ofHerefords me 

 !tiU remains an object tor our careful invesbgation J"* "^ 

 "are continu^y throwing a new Ught on the relaUons o^e 

 Herefordshire beds to those ot Scotland The ^^^ 

 fia«i proved on a comparison of the srmdar, although va. J m 

 "irof fossUs which at the same t'- ^^ ^jr^l art no' 

 Downtonbeds. to be the cciuivalcnts of the latter "-"!-« "^"^ 

 knownt to be overlaid by red shales in ^'■''f f'— ^ 

 occurs-the relation of the passage be<ls of the Ludlow radw^y 

 cutting to the Old Eed have recently been elucdatcd "J ^'J^ 

 invest^tions of Mn. Sv«Kns,} in the Led ury ^'n" tnr^s 

 a ,n Jual succession fr-om the Aymestiy limestone through tl^e 

 Ifer Ludlow and the Do^ton sandstone, which has there scarcely 

 upper Ludlow an ; ,^„j, <,t the Ludlow passage beds, 



:,Z17T2 oJ™^^ *t- "f Auchcuaspis and Ptcrygotus 

 ™ ^d he finds that these beds pass upwards mto a screes o 

 ^d rnXwitb yellowish, grey, and p^ sandstones, contarnmg 



"rSy:t^"":^-^»y. «. P-^n. has found in the 

 eo^toTcepUspis Lyellii and Pteraspis Uoydn, and m the 



v,.„n Silurians " Quarterly Journal, Geological Society, 

 * Miu-cMson's "Lesmahago Silurians, ^^u y u TQcstones 



110 I'! Salter's "Himantopterus," ibid, p. 26. mnks 

 vol. 12, p. If • ^f f ^! ^ I F.G.S., remarks that tliis last paper 



vol.16, p. 214. 



t SymoBcls " On Passage Beds at Ledbury, ibid, p. 193. ^ 



