Mr. Winch on the Geology of the Banks of the Tweed. 



129 



and blue Limestone in the vicinity of Edinburgh* to the same se- 

 ries of rocks. In the Newcastle coal-field, where no Limestone is 

 interstratified with the measures, Red Sandstone differing in no respect 

 from those just mentioned may be noticed near the sea coast of Nor- 

 thumberland at Cresswell, Ellingham, Woodhorn, Newbiggin, Tyne- 

 mouth ; also at Burrowdon, in the neighbourhood of Gosforth. 



As investigation advances, the lines of demarcation between different 



Brought forward 

 White Freestone, 



Coal, the Seam probably may be the Cancer Coal 



Grey Metal, 



Limestone, 



Grey Metal, 



COALj .«• ••• ••• ••> •■- ••• 



Grey Metal, 



White Freestone, 



Limestone, 



White Freestone, 



Limestone, 



FA. 1 FT. 



IN. 



FA. 



FT. 



IN. 



14, 



1 

 2 



5 



41 

 14 



1 



2 



3 

 3 



3 

 1 



9 

 5 



2 

 2 





3 



4 



6 

 6 

 8 

 6 





1 

 3 



4 

 3 



4 

 9 

 6 

 5 



2 









59 



3 



6 



OBSERVATIONS ON THE SEAMS OF COAL IN THE BERWICK DISTRICT. 



The seams of Coal near the sea coast in this district, generally dip nearly due east, at 

 an inclination of one yard in three ; to the westward, their dip is to the southward of the 

 east, with an inclination of one yard in ten or twelve. 



1st. The Muckle Howgate Seam is the first workable bed on the Scremerstone estate, 

 and in its vicinity ; it lies at various depths below the surface, and is about two feet six 

 inches in thickness ; it is considered an inferior Coal in quality, and used only for burning 

 Limestone. 



2nd. The Caldside Seam, supposed to be about sixty fathoms below the Muckle How- 

 gate Seam, is generally used for the same purpose, though rather of a better quality than 

 No. 1. 



3d. The Scremerstone Main Coal, supposed to be about sixty fathoms below the Cald- 

 side Seam, is four feet in thickness, but with a thin band of stone near its bottom. This 

 seam is reputed the best coal for house use, except the portion nearest the bottom, which 

 is sold for Lime burning. 



4th. The Stony Coal lies from two to three fathoms under the Scremerstone Main Coal 



* Mr. Dunn's MS. Section of Gilmerton Colliery. 



