210 BROWELL AND ELRKBY ON MAGNESIAN LIMESTONE 



ANALYSIS. 



Carbonate of lime 49-06 



magnesia 36-40 



Oxide of iron and alumina 2 - 93 



Silica soluble in dilute acid 0-46 



Sand, &c 5-53 



"Water, &c 4-40 



98-78 



No. 9. Locality— EYHQPE PIT. 



Lithological Characters. — Greyish, approaching yellow, rather 

 hard, laminated Marl-slate, containing scales of Palceonisci. 



Highest laminae. 



ANALYSIS. 



Carbonate of lime 48'48 



magnesia 30-16 



Oxide of iron and alumina 4 - 32 



Silica soluble in dilute acid 0-80 



Sand, &c 13-28 



Water, &c 2-96 



10000 



Iron chiefly as protoxide. A little organic matter. 



No. 10. Locality— MIDDEEIDGE. 



Lithological Characters. — Yellowish grey, moderately hard 

 Marl-slate. 



ANALYSIS. 



Carbonate of lime 41-28 



magnesia 15 - 68 



Oxide of lime and alumina 12-64 



Silica soluble in dilute acid 2-08 



Sand and clay 21-60 



Water, &c 6-72 



100-00 

 No. 11. Locality— FUL WELL WATER WOEKS 



(SHAFT OF). 



Lithological Characters. — Dark grey Marl-slate. Lowest 1am- 

 inse, close to the Lower Eed Sandstone. 



