ON THE EEUATIC ULOCKS OF ENGLA>D, TVALES, AND IRELAND. 125 



The boulders of the second and third group have been exposed by the 

 washing away of the boaldor clay, and in some cases have evidently rolled 

 down from slightly higher elevations to their present positions. 



The following Shap granite boulders at Marton-cum-Graftou are 

 reported upon by Rev. E. P. Knubley, M.A. (Vicar of Stavcley) : — 



At Marton-cum- Grafton, 3 miles S.E. by S. from Boroughbridgc, are 



two Shap granite boulders. 



No. 1 measures 3 ft. 3 in. x 3 ft. 1 in. x 2 ft. 6 in. ; greatest girth 9 ft. 9 in. 

 No. 2 „ 2 ft. 5i in. x 2 ft. 6 in. x 1 ft. 8 in. ; „ 8 ft. 



Both are rounded ; no grooves or striations ; they have been moved 

 from a narrow lane leading to Scruddle Dyke Pond, at the bottom of the 

 village, to the Vicarage Gardens. Their former position is about 100 ft. 

 above sea-level. There are long ridges of gravel in the parish. 



Note. — Shap Fells are 64- miles N.W. of Marton. 



Reports upon Boulders at Staveley, Arkendale, and Claro Hill are given by 



Rev. E. P. Kndblet, M.A. 



At Staveley, which is three miles S.W. of Boroughbridge, and 100 ft. 

 above sea-level, there are on either side of the church, ridges of gravel, 

 which run parallel to the Ure on the one hand, and the Nidd on the 

 other. The gravel, which covers about ten acres, consists for the most 

 part of rounded sandstone, interspersed with a small proportion of Car- 

 boniferous limestone, ranging from the size of a small pebble to a block 

 2 ft. 5 in. X 2 ft. X 2 ft. The smaller of these are rounded and polislied, 

 the laro-er subangular. The latter show numerous fine striations which 

 run parallel with the longer axis. The lower Wensleydale series, to which 

 the laro^er rocks belong, is about 25 miles to the N."W. I have found one 

 piece of Shap granite which was round and about a foot long. 



At Arkendale, which lies 4 miles due south of Boroughbridge, and 

 about 180 ft. above sea-level, there are several erratic blocks of Car- 

 boniferous limestone. The largest of these, which lies by the road-side, 

 within 20 feet of the east end of the church, is 3 ft. 8 in. x 3 ft. 2 in. x 

 2 ft. G in., and is subangular. 



Claro Hill, the mound from which the wapentake is named, is composed 

 entirely of glacial drift of the same chai'acter as that found at Staveley, 

 except that the pebbles of mountain limestone are more numerous and 

 more polished. This mound, which is rather more than four miles south 

 of Boroughbridge, is situated at the angle formed by the junction of the 

 road from Clarcton with that which runs from Wetherby to Borough, 

 bridge. The summit is about 230 ft. above sea-level. The largest 

 boulder at Claro Hill is of mountain limestone, subangular, and is about 

 4 ft. square. 



Mr. William Gregson, Baldersby, Thirsk, reports upon York.shire 

 coast boulders : — 



On the West CliflP Sands, Whitby, is a boulder of Shap Fell granite. 

 No strioe ; subangular ; 4 ft. X 2 ft. X 2 ft. 3 in. Is on the shore. Rests 

 upon Lower Oolite. 



In Runswick Bay, north of Whitby, are four boulders, three of which 

 are composed of Shap Fell granite, the fourth being of grey granite. 

 They are on the shore ; are rounded ; without any strise ; and are about 

 4 ft. across each way ; they rest upon Middle Lias. 



Mr. Robert Mortimer, of Fimber, reports that at Southburn, near 



