310 Mr. N. Wood on the Geology of Northumberland, ^c. 



Feet. 



Slaty micaceous Sandstone, quarried for Slates, — 



Black Dent, full of Cockle Shells, 4 



Limestone, ... 4 



Black Shale, 5 



Shelly Limestone, used for Lime, 8 



Thin bed of Coal, ... ... .. ... ... ... — 



Hard Sandstone, 20 



Black Shiver, or Bituminous Shale, ... ... ... 5 



Limestone, ... ... ... ... ... ... 4 



Seam of Coal 2ft. 4in. workable, thickens to the west, 

 but the general thickness is 30 inches. 



Sandstone, ... 30 or 40 



Blue Shiver, ... ... ... ... ... ... 4 



Sandstone, ... 5 



Shiver, ... ... 4 



Hard Grit Rock, 15 



Shivery Shale, .. 4 



Reddish Grey Limestone, ... 4 



Shiver, ... ... 4 



Hard Sandstone, ... ... ... ... ... ... 6 



Plate, 4 



Various beds of Reddish Sandstone, ... ... 50 to 60 



Shiver, or Plate, ... 10 



Hard Shelly Limestone, ... 6 



Bed of Coal and Shale, .. 1 



Plate Beds, 50 to 60 



Shelly Limestone, ... ... ... ... ... 6 to 8 



Hard reddish Sandstone rock, stretching along the coast 

 for about a quarter of a mile, the inclination of which 

 gradually alters, and finally becomes quite flat, pro- 

 bably the effect of some Slip Dykes. 



After passing a flat sandy beach of about a quarter of a mile, we find 

 a series of beds of Sandstone, Shale, and Limestone, apparently part of 

 the preceding, thrown down by the Slip Dykes previously noticed, 

 viz. : — 



Sandstone, ... 

 Hard Limestone, 



Feet. 



. 4 



. 5 



