88 REPORT— 1875. 



10. Very few of the boulders are found at the surface. 



In that which is most characteristically a houlder-de'posit (between Plum- 

 tree and (Stanton) the boulders are covered entirely by a later drift-deposit, 

 composed mainly of red marl, as if from the Xeuper, mingled with a smaller 

 proportion of Lias clay, and containing a few specimens of rolled Gryplicea. 

 Here the boulder- deposit fills up a hollow in the Ehsetie beds, the erosion of 

 the strata having gone entirely through the Avicula-contorta beds into the 

 blue-grey marls below. At the tunnel and further south the boulder-clay 

 rests upon the Lias. 



Leicestekshibe. 



Mr. J. Plant reports the following : — 



Bloclc of ijorphyritic granite at SJwkcrstone, near Gopsall Parle. 5x4x1^ 

 feet. Height above the sea about 350 feet. No scratches or striae are at 

 present visible, the block having been greatly worn by human agency. 

 Identical in composition with the porphyritie greenstone of Whitwick, near 

 ColviUc, at the N.E. end of Charnwood Porest, 7 miles from its present site. 

 At the same village great numbers of blocks of all sizes (granite, syenite, 

 greenstone, basalt) are to be found in the foundations of old houses, wells, 

 and churches. 



Numerous Charnivood-Forest hoidders, 7 miles due north of Mt. Sorrel, at 

 Normanton, on spar. 



There is no doubt (as pointed out in a previous Eeport) that Charnwood 

 Porest was a centre of distribution by ice of blocks of all sizes. 



BJoel- of Milhtone-ffrii at Holy, iiear Melton, about 3x3x3 feet. This 

 grit is of peculiar composition, and full of large rounded pieces of quariz. It 

 must have come from Durham and Northumberland, 



WoECESTEESHIEE. 



Bromsgrove district. — Ninety-three boulders have been examined in this 

 district, many of them of considerable size. In addition to a few derived 

 from local rocks, they appear to consist of three varieties of fclspathic rock — 

 (1) one variety compact, (2) one with small porphyritie crystals, and (3) 

 one a decided ash. The colour of the rock is dark grey to light grey, some- 

 times with a greenish tinge, but generally bluish. Evidences abound of a 

 very great destruction of boulders in this district from time immemorial. 

 Many have been buried to get them out of the way, and many broken up 

 for building-purposes. It is impossible, therefore, to generalize upon their 

 distribution ; but in the mean time it is very noticeable that no specimens 

 of granite boulders have yet been observed in the Bromsgrove district, 

 although they occur so abundantly around Wolverhampton. The following 

 is a list of the principal boulders in this locality. The Committee are 

 under great obligations to Mr. G. Dipple, of Pord House, for his invaluable 

 assistance. 



Compact felstone (C. P. below), 2x2x 3ft., 275 feet above sea, corner of 

 new road near station. 



Pelstoue with quartz, 272 feet above sea, three fragments close to railway 

 bridge. 



C. P., 2x2x2 ft., 276 feet above sea, three boulders with fragments near 

 Pinstal House. 



Pclspathic ash (P. A. below), 5 X 3| X 3 ft., 280 feet above sea. Another 

 100 yards up the E. road, 3x2 x 1| ft., with four smaller. 



P. A., 3i X 3i X U ft., Webb's farm. 



