XX 



ILLUSTRATIONS. 



DIAGRAM 



CXCVIII. Ammonites varians 



CXCIX. Turrilites tuberculatus .. ,.. .. .- .. 



CC. Section of Eocene beds in the Vale of Thames at London 



CCI. Section of Eocene beds in the Vale of Kennet 



CCII. Section across the Vale of Thames at Gray's-Thurrock 



CCIIL Flint Implements of early type (Wittenham and Hounslow) 



CCIV. Mint Implements of later type (Wittenham) 



CCV. Flint Implement ground over all the surface (Wittenham) 



CCVI. , Greenstone Implement from Wittenham 



CCVIL Stone Implement from Shotover Hill 



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443 



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477 



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