316 



PEOF. T. G. BONNET AND EEV. E. HILL ON THE [Aug. 1 899, 



not determined by post-Glacial earth-movements.^ It also shows a 

 tripartite division of the Drift, inexplicable by folding and uncon- 

 nected with faulting. 





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to 



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ft 



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II ll 



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 II II II 



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(2)lWe pass from this rather elevated section to one where the 

 tripartite Drift is almost at sea -level. The well-known section 



' Similar evidence is afforded bj sections such as that near the Blockhouse 

 {p. 320) and that south of the Leuzerbach, The not unfrequent general 

 concordance between the base of the Drift and the flint-bands in the Chalk 

 may be due to the influence of the^hard material in determining the surface of 

 the latter rock. 



