210 PROCEEDINGS OP THE GEOLOGICAL SOCIETY. [Apr. B, 



tain-limestone, ironstone, Carboniferous sandstone containing plants, 

 grit, yellow magnesian limestone, rounded boulders of older rocks, 

 including granite, and a large block of Syenite. This detritus was 

 of all sbapes, angular and rounded, the edges often being scratched 

 and striated. The flints were little worn. The pieces of Oolite 

 were flat and not rounded. I carefully searched the adjacent fields, 

 but could detect no chalk in any of them, though there are flints ; 

 and the only way to account for this limited and local distribution 

 of broken fragments of chalk and other materials seems to be that 

 an ice-block discharged its load at this spot. 



In no case, in the Drift hereabouts, have I seen so many traces of 

 fossiliferous rocks, which are seldom met with in this district. In 

 a contiguous field there was a deposit of brown clay, not usual 

 in this neighbourhood, in which were many large and small boul- 

 ders intermixed with slightly abraded chalk-flints. The gravel-pits 

 in the district average from six to eight feet in thickness, or more, 

 in different places, and consist of the same materials, but with fewer 

 flints, which are intermingled with sand. At one spot, but of limited 

 extent, there is a thick accumulation of fine sand with few pebbles of 

 any kind. The gravel is finer and more sandy in some places than 

 others. "Where the Keuper comes close to the surface, as it often 

 does, the superimposed Drift is of no great thickness. The gravel 

 for the most part is made up of ancient metamorphic rocks, which 

 probably were derived from the north, and is therefore usually 

 termed " Northern Drift ; " but although the fragments of the fossili- 

 ferous rocks are few, those which I have met with seem to have 

 travelled from various points of the compass ; for it is reasonable to 

 suppose that icebergs were often borne in different directions by 

 adverse currents. The larger flints in the greatest profusion in 

 the tract referred to seem to occupy a line of no great breadth, 

 running from the north for some miles, a little to the west of south, 

 which would include the parishes of Hazeley, Hatton, and "Wotton 

 Wawen, with Edstone. The Lias outlier at Brown's "Wood, near 

 Wotton W^awen, is covered with Northern Drift ; and a deep gravel- 

 ]Dit on the summit of the hill contains some very large boulders. 

 For a long time I considered the abundant quartzose pebbles to be 

 altogether unfossiliferous ; but owing to the improvement in pre- 

 paring the materials for the road under the ruew Act, they are now 

 broken up, and occasionally, though very rarely, a few fossils are to 

 be met with. Among these I was much struck with the resemblance 

 of some of the shells to some lately discovered by Mr. Vicary in the 

 Lower Silurian pebbles of the New Red Sandstone at Eudleigh Salter- 

 ton, and described by Messrs. Salter and Yicary in their interesting 

 paper in the 20th vol. of the Journal of the Geological Society *. 

 OrtJiis rediLvf is the most abundant fossil, usually occurring in groups 

 as at Eudleigh ; Lingula Lesneuri, a few specimens, one full-grown, 

 about the size of the largest from Devonshire ; Trachyderma serrata 



* Page 283. 



t Calymene Tristani and OHhis rcdux are found in the Lower Silurian 

 quartz-rock at Caerhayes, in Cornwall. 



