44. 



The following table represents with tolerable accuracy the rela- 

 tive and gross numbers of named species contained ijj the Society's 

 collection : — 



Crag 



f Upper freshwater formation . 

 Upper marine formation 

 Lower freshwater formation 

 London clay 



Chalk and chalk marl 



Upper green sand 



Gault 



Lower green sand 



Green sand, hlack 



Weald clay 



Hastings sand 



Purbeck stone 



Portland oolite 



sand 



Kimmeridge clay 



Coral Rag 



Calcareous grit 



Oxford clay 



Kelloway rock , 



Cornbrash 



Forest marble 



Bradford clay 



Great oolite 



Fuller's earth 



Liferior oolite 



Alum shale 



Marl stone 



[Lias 



Coal measures 



Carboniferous limestone. 



Upper Ludlow 



Aymestry limestone 



Lower Ludlow 



Wenlock limestone 



— shale 



120 



Caradoc sandstone 

 Llandeilo flagstone 



1 



2 



6 

 46 

 21 + 6 

 23 

 16 

 47 

 39 



6 

 11 



5 

 13 

 13 



7 

 22 

 17 

 12 



5 

 23 



6 



5 

 29 

 23 

 38 



2 

 14 

 30 



2 

 38 

 26 

 11 

 11 

 18 

 24 

 48 

 13 



11 

 12 

 11 

 100 

 5+10 

 10 

 37 

 10 

 14 



4 



4 



3 



9 



4 



10 

 9 

 5 

 3 

 2 

 1 



2 



28 

 6 

 8 



35 



23 

 15 



5 

 24 

 13 



5 

 14 



11 



9 

 15+1 



Vide S. Wood's Catalogue. 

 Many drawers not named. 



f Includes the Bagshot sand. 



§ These should not be kept distinct. 



