118 



The author has defined the whole of the base line of the new red 

 sandstone from May Hill in Gloucestershire to the Oswestry coal- 

 field, and has made some changes in its direction, particularly in 

 the country between Newent and the Malvern Hills, and between 

 Kidderminster and Bridgnorth. He further describes the occur- 

 rence of several conglomerates along this base line, the most notable 

 of which are Haffield Camp near Ledbury, Rosemary Rock near 

 Knightwick bridge on the eastern flanks of the AbberJey Hills, 

 and on the sides of Stagbury and Warshill Hills near Bewdley. 

 These conglomerates resembling that of Heavitree in Devonshire, 

 are subordinate to red sandstone, and the fragments of trap which 

 they contain have been derived from hills in their immediate vicinity. 

 Felspathic trap rocks of this character have been formerly described 

 in the Malvern and Abberley Hills, and similar rocks have this year 

 been discovered by the author in Stagbury and Warshill Hills 

 resembling in composition the rocks of the Clent and Abberley 

 Hills. The conglomerates, however, which rest upon their flanks, 

 include fragments of quartz, greywacke, old red sandstone, &c. 

 Though occupying the base line of the series of new red sandstone, 

 the author does not pledge himself that the conglomerates of 

 these districts are the precise equivalents of the lower red sand- 

 stones which overlie and pass down into the coal-measures of 

 Shropshire, for he shows that in the south of Worcestershire and in 

 Gloucestershire there is not a sufficient expansion of the system to 

 admit of such proofs. He is, however, disposed to think that the red 

 sandstone which overlies the small patches of coal at Newent, may 

 prove to be the representative of the lower new red. At two or 

 three places on the eastern slopes of the Malvern Hills the conglo- 

 merates have been observed in inclined positions, and at some height 

 above the adjoining plain. At Great Malvern they adhere in one 

 spot to the steep flank of the sienite in a dislocated form, dipping 

 east at an angle of 30° to 35°. This fact not having been previously 

 noticed is considered to be worthy of record, as leading to the in- 

 ference, that this chain of trappean hills may have undergone a 

 movement oi' elevation subsequent to the deposit of the new red 

 sandstone. 



A letter was also read from Thomas Weaver, Esq. F.G.S. ad- 

 dressed to George Bellas Greenough, Esq. P.G.S. 



In a communication read before the Society on the 4th of June 

 1830, Mr. Weaver stated that all the coal of the province o£Mun- 

 ster except that of the county of Clare, belonged to the transition 

 series*. In this letter, he says, " having devoted between three 

 and four months continuous service to further research in the south 

 of Ireland, I have to retract that statement, having been led to too 

 rapid an inference by the apparent connexion between the southern 

 portion of the coal-field and the transition series ; and especially by 

 finding the limestone, which there underlies the coal measures, to 



* Geol. Proceedings, vol. i. p. 232. 



