The Levenshuhne Limestones, 293 



clearly shewn. Many other small organisms are crowded 

 into the field of view. 



These three limestones are succeeded by a ^in. band of 

 yellow marl, and again by 1 1 inches of purple marl, after 

 which we have a (4th) bastard limestone, 6in. thick, which 

 has not been carefully examined. This is followed by 

 purple marl, abounding with "fish-eyes," and then a (5th) 

 bastard limestone. Sin. thick. A mass of variegated marls, 

 4ft. thick, follows, much mixed with hematite, the lowest 

 bed being of a deep red. 



Summary of No. j Group. 







ft. 



in. 



(i) Limestone ... .'^. 





... 



5 



marl parting 





... 



0% 



(2) Purple limestone 





... 



5 to 



marl parting 





... 



0% 



(3) Limestone 









7 



Yellow marl... 





... 



7 



Purple marl... 





... 



II 



(4) Bastard limestone 





... 



6 



Deep purple fracture 













Purple marl with " fish- 



-eyes " 







2 



(5) Bastard limestone 





... 



8 



Marls with hematite 





... 4 







The /^th Group of Limestones. 



Immediately under the red marls, the 4th group com- 

 mences with 



ft. in. 



(i) Limestone 



... I 2 to I 



Green and purple shale 



... i^ 



(2) Limestone (purple fracture) ... 



- ... 41^ 



Purple marl... 



... 3 



(3) Limestone 



... 9 



which form a small compact group, being separated from 

 the next by a mass of marls and shales. These limestones 

 are very rough in surface, as they are also in substance, and 

 they will not take a good marble polish, being much pitted 



