238 BOULOGNE. [1872-73. 



sively used during the preparation of later papers 011 

 the Westleton Beds and more recent deposits. 



His connection with City life had been severed on the 

 1st of August, and on the 12th September he started 

 for Boulogne with his two friends, Mr Godwin-Austen 

 and Mr H. B. Mackeson of Hythe, both of whom have, 

 alas ! since passed over to the majority. Never losing 

 sight of special points he had in view, the route was a 

 part of the programme planned for the Easter excur- 

 sion, which, owing to the state of his health at the 

 time, he had been unable to join. The notes and sec- 

 tions of this Boulogne expedition are voluminous. The 

 three friends proceeded to Cape Gris Nez by Vimereux, 

 Ambleteuse, and Andrecelles, and a careful analysis is 

 given of the subangular gravel near Wissant. 



" Between Wissant and Cape Blanc Nez we found 

 Dunes, but under them in places cropped out the Lower 

 Greensand (Sandgate and Folkestone Beds), capped 

 by angular white Drift, same as that which overlies 

 the raised beach at Sangatte ; but no beach occurred 

 here." 



This angular Drift at Wissant did not extend far 

 inland, but near Equihen he found the strata covered 

 by a greater thickness of flint Drift. In short, he was 

 noting every trace of Drift and Loess, and there are 

 forty-five pages of notes and sections on this one ex- 

 pedition. M. Rigaux of Boulogne informed him " that 

 the fragments of elephant's tusk, and tooth of rhino- 

 ceros, were found in the rail way -cutting through the 

 Kimmeridge Clay between Boulogne and Wimille, at a 

 height of about 60 m., and in a pocket of Drift." 



Wimille was visited with M. Rigaux just a year later, 

 when another of the many expeditions to the Boulon- 

 nais was made. 



