354 Mr. Weaver's Geological Observations on 



tractj in which the strata are more distinctly exposed. In the ridge to the 

 north, between Perrystone hill and Much Marcle, the strata appear disposed 

 in the form of an arch ; and this arrangement is traceable further south : but 

 no where in this range is the variation in the position of the strata so well 

 observable, as in the line of the public road leading from Huntley to Mitchel 

 Dean. The repeated undulations of the transition beds, more or less 

 abrupted at the surface, may there be traced, in continuation, from the western 

 flank of Huntley hill, nearly to their junction with the old red sandstone. 1 

 have represented this disposition of the strata in Section 4.* 



§ 34. If we advert to the general characters of the series, we find them in 

 most respects corresponding with those described in the Tortworth district. 

 The chief difference consists in the frequent occurrence in May hill, Huntley 

 hill, and Nott's hill, of beds of red conglomerate and coarse sandstone, with 

 sandstone of finer grain passing into granular quartz or quartz rock, — in 

 no wise different, as far as respects mineralogical character, from many varie- 

 ties of the first or old red conglomerate and sandstone of the sedimentary class ; 

 but the former are distinguished by the occasional appearance of such organic 

 remains as distinctly prove them to belong to the transition period, e. g. near 

 the summit and in the flanks of May hill f . 



The sandstone predominates to the western flank of Huntley hill, beyond 

 which blueish gray limestone, marly slate-clay, and marly clay, prevail ; in 

 these, however, beds of magnesian limestone, and thin beds of fine-grained 

 sandstone, may be occasionally observed. 



In some quarters also, the limestone beds acquire the conglomerated aspect, 

 nodules of limestone being enveloped and cemented by a clayey or marly 

 paste, more or less firmly consolidated, as near Ledbury. These marly shales 

 and clays are provincially known by the names of waterstone and die-earth. 



* May hill, according to the Ordnance Survey, is 965 feet above the level of the sea. 



f The prevailing constituents of these conglomerates and coarser sandstones, are, rounded and 

 angular grains of quartz (some being as large as nuts), with rounded and angular fragments of 

 reddish and yellowish decomposed slate, and grains of felspar of the same colours, in a partial 

 state of disintegration, passing into white earth. Quartz is the more common connecting medium 

 of the whole, but occasionally the cement is argillaceous ; while the interstices that sometimes 

 occur are partially filled with yellow or red oxide of iron. The same composition may be traced 

 from the coarse red conglomerate to the finest grained sandstone, until the particles become 

 almost imperceptible to the eye. Very fine grained grayish white sandstone also occurs, consist- 

 ing of grains of pellucid quartz, more or less approximated, with minute grains of felspar inter- 

 spersed, and sometimes connected by a basis of crystalline carbonate of lime. And, while the 

 reddish hue predominates, the series in general may be said to exhibit the same varieties of colour, 



