154 GEOLOGICAL EXCURSIONS. [i860. 



when sections and notes record the most interesting 

 features. Thence he proceeded to Devizes to visit the 

 collection of his friend Mr W. Cunnington. On 3rd 

 June he was at Yeovil and Sherborne. The obser- 

 vations on Wells and Banwell are voluminous, as are 

 likewise those on Weston-super-Mare. Every exhibi- 

 tion of drift that was observed is carefully noted on 

 the route from Exeter to Barnstaple, and again from 

 Exeter to Sidmouth, &c. It was his habit when on a 

 journey to alight at some small station, scan and 

 interpret the geology of its district, and proceed by a 

 later train. 



On the way back to Bristol he had been struck at 

 Maiden Newton by traces of flint gravel on the hills. 

 He also observes that " the clay beds seem to have 

 caught the gravel (flint) more than the sandstones 

 and oolites, which are bare. Stop at Bruton station 

 next time." 



On this occasion the geological features of Clifton 

 Down and Durdham Down were studied ; later on 

 one of many visits was paid to Watford and to a 

 certain gravel-pit at Bushey. A few sentences copied 

 at random from a note-book, or a catalogue of names 

 of places visited, give a totally inadequate idea of the 

 amount of field work accomplished on one geological 

 journey. 



A second expedition to the Abbeville district is 

 noticed as having been made this year on July 5, 

 when Mr Prestwich went the round of several gravel- 

 pits, accompanied by M. Boucher de Perthes. Intent 

 on ascertaining the levels at which different flint im- 

 plements had been found, he sought information from 

 every available source. He emphasised a fact com- 

 municated to him by Pierre Halatre, jardinier, Rue 



