Howarfh : The Ice-home Boulders of Yorkshire. 249 



' It is a curious fact that all Shap Granite boulders found in this 

 district occur only in the valley of the Lune. In the adjoining 

 Valley of the Tees none are to be seen, &c., &c.' — Bell to Y.B.C. 

 Larkrigg, Westmorland. See Kendall. 



Long Xabb, several (four at least) on the N. side of the Nab. One measures 



8 cubit iQQt.—Dahyns, B.A.R., 1879. 

 Low Coniscliffe, in bed of Tees. See Manson ist year, p. 23, Y.B.C. 

 Luhan, Parish of Edenhall, Westmorland. Several blocks on a farm at 



about three miles E. of Dutton (Hindrig). B.A.R., 1876. 

 Luddington. 4^'X3'X2^'; 2^'X2'X2'; 6' X 5' X 5'. Immediately N. 



of Long Nab ; half way between Long Nab and Hundale point. — 



Stather, Y.B.C, 1898. 

 ' Serving as a guard to the corner of the gateway of Smith's farm.' — 



Cooke, Lincolnshire. 

 Marton-cum-Grafton. 3 miles S.E. by S. from Borobridge. 3' 3^X3' 1" 



X 2' 6". Greatest girth, 9' 9" 

 2' 5|-"X2' 6"xi' 8". Greatest girth, 8'. Rounded N.S. or G. Moved 



from narrow lane leading to Scruddle Dyke Pond to Vicarage Gardens. 



Former position S.L., 100'. There are long ridges or gravel in the 



Parish. 



Note. — Shap Falls are 64 m. N.W. of Marton. See Claro Hill. — - 

 Kniihley, 3rd Report, Y.B.C. 

 Milnthorpe, Westmorland. See Kendal. 



Morcambe. On shore near Battery Inn, West End. — Speight, Y.B.C, 

 1898-1899. 



Mount Grace Priory. 7 miles N.E. of Northallerton. 24" x 12" x 10" sub. 

 ang. No striae. — Gvegson, Y.B.C, 1898. 



Mulgrave Park, near Whitby. 4 miles N.W. of Whitby, on N. side of 

 stream running east between the old castle of Mulgrave, and a spot 

 known as the Hermitage. 3' in dia. No striae. S.L., 100'. Isolated 

 in rivulet probably rolled down from clay above. Stream cut through 

 Lias Shale. — Manson, Y.B.C. 



Murley Moss, Westmorland. See Kendal. 



Natland, Westmorland. See Kendal. 



North Sea. 20 to 40 miles off coast. North of Flamborough Head. 

 Large number of boulders are found strewing the bottom of the North 

 Sea, but they are arranged very much in a belt, which is approximately 

 parallel to the existing coast at a distance of 20 to 40 miles from the 

 land. The outer or eastern edge of this belt is not well defined, but 

 on the western side it would appear to have a sharper boundary, as 

 the marks used by trawlers to avoid the boulders shew that the line 

 is well marked. 



While preserving a line parallel to the existing coast, it is curious 

 to note that just opposite to the mouth of the Tees the inner edge of 

 the ' rough ground ' by which name this belt is known to the fishermen, 

 makes a sharp bend to the eastward, coinciding almost exactly with 

 a line drawn down the Tees Valley. I venture to suggest that this 

 large belt of erratic blocks is connected with the history of the giant 

 glacier which descended the Tees Valley, bringing among other stones 

 masses of the well-known Shap Granite. The boulders I have seen 

 brought on shore, having been trawled up by the smacks, are either 

 of Shap Granite or Carb. Limestone, and of those I have examined 

 some sixty to seventy specimens, the rough ground, as far as I am 

 aware, extends from the coast of Northumberland to the mouth of the 

 Humber. While the boulder clay on the coast line contains blocks 

 of Carb. Limestone and Shap Granite, the glacial deposits in the 

 Valleys of the Rye and Derwent, south of the Cleveland Moor District, 

 are composed of Oolitic and Liassic detritus, and are very different 

 from those on the coast, though only a few miles distant from each 

 other. — Woodall, B.A.R., 1882. 



1908 July I, 



