ler of the 

 ance of Life 

 the Globe. 



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f Bala Group. 





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Llandeilo 

 Group. 



[Zfc/awp. 192.] 



Arenig 



Group. 



Trfmadoc 

 Grol t p. 



}'■ 



ozoa 



libranchiata 



rioidea, 



.eroidea, 



shalopoda, 



ntaj? 



f\ 



LlNGULA- j 



flag Group 



Menevian 



Group. 



longmynd 

 Group. 



LALTRENTIAN ? 



tyopoda 



]Jopoda 



f I idea 

 II 



I pods 



a. 

 ida. 

 jit a. 



nostra ca. 

 liopoda. 

 oa. 

 Lida. 



Localities where the 

 Formations are Exposed. 



Caradoc, Horderley, Eala, 

 Snowdon, Llandeilo, and 

 East Pembrokeshire. 



Builth and St. David's. 



Llandeilo, Builth, Lampeter 

 Velfrey, Musclewick Bay, 

 Aber-eiddy. 



Aran, Arenig, and Ffesti- 

 niog mountains, Shelve, 

 Builth, and St. David's. 



West of Arenig, Shelve, 

 and St. David's. 



Carnarvonshire, Stiper 

 stones, and St. David's. 



Portmadoc and St. Dav 



Neighbourhoods of Port- 

 madoc and Dolgelly. 

 North Wales ; and 

 Ramsey Island and St. 

 David's, in South Wales. 



Neighbourhoods of Port- 

 madoc and Dolgelly, 

 North Wales ; and Mal- 

 vern. 



Near Maentwrog and 

 Dolgelly, North Wales ; 

 St. David's and Malvern. 



Maentwrog and Dolgelly, 

 North Wales ; and St. 

 David's and Solva, South 

 Wales. 



St. David's in South Wales, 

 and neighbourhoods of 

 Dolgelly and Maent- 

 wrog, North Wales. 



St. David's, Harlech, 

 Bangor, Llanberis, and 

 the Longmynds. 



St. Davids. 



* These sledded ash and tuff, 

 t Theblacl 



