ON THE ERRATIC BLOCKS OF ENGLAND, WALES, AND IRELAND. 26^ 



Sinderby, near Thirsk : altitude about 90 feet — 



Carboniferous limestone, 30 x 20 x 18 in. j subangular ; oa Keuper sand- 

 stone ; strife, N.E. and S.W., in the direction of its long axis. 



Bejaorted by Thos. Tate, F.G.8., Hon. Secretary to the Yorkshire Boulder 



Committee. 



Itihhlesdale : altitude 350 feet. — Swanside Beck (rigbt bank), east of 

 Sawley Abbey — 



I. ' BrocVram,' somewhat bleached, 14 x 17 x 6 in. ; rounded. May be 

 from the Permian conglomerate of Black Burton (the Leek beds 

 brockram), which is indistinguishable from that of the Vale of Eden. 



II. Black limestone breccia, richly veined with calcite and limonite, 

 12 X 6 X 6 in. ; very angular. Parent rock unknown. 



Ingleton. — I. Dale Beck (right bank), above Phillips' dyke : altitude 

 470 feet— 



Helmsgill lamprophyre, 72 x 39 x 19 in. ; subangular. 



IT. Dale Beck (right bank), near Mealbank limekilns : altitude 

 400 feet— 



Helmsgill lamprophyre, 72 x 60 x 42 in. ; angular. 



Microscopic sections of these boulders are described and figured in 

 ' Proc. of Yorks. Geol. and Poly. Society,' vol. xi. p. 311, plates xiv., xv. 



Dewsbury. — Gas works, Savile Town : altitude 125 feet — 



I. Ennerdale granophyre, 7 x 4 x 4 in. ; well worn. 



II. Buttermere granophyre, 12 x 8 x 6 in. ; rounded. 



Church Street (near County Court, in main drainage) : altitude 

 325 feet— 



Shap (?) granite, 16 x 7 x 5 in. ; oval ; very much worn. 



Horbury Bridge : altitude 100 feet — 



Ennerdale granophyre, 7 x 5 x 5 in. ; rounded. 



Wakefield. — Thornes Lane, below suspension bridge: altitude 76 feet — 

 Ennerdale granophyre, 6 x 4 x 3 in. ; well rounded. 



All the above Calder Valley erratics, as well as those from Ribbles- 

 dale, are now in the possession of the Yorkshire Boulder Committee. 



Teeside. — Shap granite, Armboth quartz, felsite, and Carrock Fell 

 gabbro have been seen by the reporter in boring operations, ranging from 

 30 ft. to 120 ft. in depth, at North Ormesby and South Bank, as well as 

 north of the Tees estuary. 



Lancashire. 

 * Second List of Erratics recorded by Mr. S. S. Platt, of Boclidale. 



The first was given in the Report of the Committee last year, in 

 which the following errata have to be corrected. 



No. 205 should be 217, and the locality should be * 85 yards west of 

 the Rochdale Town Hall.' It is now placed in the park near the Esplanade, 

 and within a few yards of the place where it was originally found. 



