ADAMSON: THE YORKSHIRE BOULDER COMMITTEE. 309 



No. 2 measures 2 ft. 5^ in. x 2 ft. 6 in. x 1 ft. 8 in. Greatest 

 girth, 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 sixty-four miles N.W. of Marton. 



REPORTS UPON BOULDERS AT STAVELEY, ARKENDALE, AND 



CLARO HILL. 



Rev. E. P. KNUBLEY, M.A., 



Rector of Staveiey ; yoint Hon. Secretary to tJie Yorkshire Naturalists' Union. 



At Staveiey, 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 Carboniferous 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 polished, the larger sub-angular. 

 The latter show numerous fine striations, which run parallel with the 

 longer axis. The lower Wensleydale series to which the larger 

 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 four miles due south of Boroughbridge, 

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

 Carboniferous Limestone. The largest of these, which lies by the 

 road-side, within 20 ft. of the east end of the church, is 3 ft. 8 in. x 

 3 ft. 2 in. x 2 ft. 6 in., and is sub-angular. 



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

 composed entirely of glacial drift of the same character as that found 

 at Staveiey, 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 Clareton with that which 

 runs from Wetherby to Boroughbridge. The summit is about 230 ft. 

 above sea-level. The largest boulder at Claro Hill is of Mountain 

 Limestone, sub-angular, and is about 4 ft- square. 



Oct. 1889. 



