12 



correctly assigned. A considerable thickness of Caradoc sandstone 

 and conirlonierate, umlistinguii^liable from the Malvern conglo- 

 morato in its mineral and organic structure, is observed at Corton, 

 and in Ca:n Wood, here highly charged vvitli characteri'stic fos-iis of 

 the up|)er portion of the lower Silurian rocks, and affording evidence 

 of the very slow nature of the deposit itself, in the repetition of fine 

 strata, distinctly marked by' regular lines of small well-rounde'^ 

 quartz pebbles, with orgunics, (ividencing the recurrence of floods 

 and flushes at short and unequal intervals. 



From the summit of Nash Hill or Cam Wood a view was obtained 

 northward to the small outliers of old red sandstone, showing the 

 former continuity of that formation, over the older rocks of Siluria, 

 traces of which are found many miles to the north in Shropshire. 



With this imperfect sketch, our notice of the last year's excur- 

 sions must terminate. Radnor and S.annar and the immediate 

 neighbourhood of Kington demand an early visit. We do not 

 a|)peal to these notices of our excursions as having contributed any 

 considerable advance in science, but more modestly, as evidence of 

 the industry with which some of our members at lea'^t are actuated, 

 and of the utillity of such associations as our little club, in opening 

 and rendering popular such researches ; and we are confident that 

 we shall not be unsuccessfully or uselessly employed, if in the 

 progress of future years we follow up our enquiries with a little in- 

 creasing interest and perseverance. 



Tiie strata of Herefordshire are now, as regards position, very 

 well known. There is no longer a doubt, that the old red sand- 

 stone, which forms so great a part of its area, dipping in the south 

 under the coal formation of the Forest of [>ean, is of enormous 

 thickness, and rests upon the deposits called Silurian, which are 

 brought up from below in the country extending fn-m the left 

 bank of the Severn, near the Wrekin, to Ludlow ; tlienci b/ Richard's 

 Castle, Croft, Shobdon, Kington, along the north-western parts of 

 Herefordshire, to Hay, and so on to the sea coast of Pembrokeshire, 

 6ui>porting the great coal field of South Wales, and Teposing-ite«tf'J^fe^< 

 on the Cambrian or older rocks of that country; again, along the 

 eastern border from ASberley to Malvern, and are thrust through 

 it at Tinker's Hill and Cainham Camp, near Ludlow; at Saucknell, 

 and Hagley, near Lugwardine ; nioro remarkably round Woolhope, 



