168 MR JOHN BUSKIN. [l862. 



so common at Abbeville. A long list of localities is 

 given where, by diligent search, flints fashioned by the 

 hand of man are likely to be found. 



The third paper, also published in the Geological 

 Society's Journal, is " On the Occurrence of Cyrena 

 fluminalis, together with Marine Shells of Recent 

 Species, in Beds of Sand and Gravel over Beds of 

 Boulder - clay, near Hull ; with an Account of some 

 Borings and Well-sections in the same District." This 

 memoir doubtless embodied his observations when on 

 the Yorkshire tour in the preceding year. 



A note of thanks from Mr Huskin for a copy of the 

 Flint Implement paper is expressed in quaint terms : 



DENMARK HILL, 6th January 1862. 



MY DEAR SIR, Eeturning on the last day of last year from 

 Switzerland, I find on my table your most interesting account of 

 the flint implements of the French Tertiaries, inscribed, " With 

 the author's compliments." Pray accept my best thanks. I 

 wish we were all reduced to " flint implements " once more 

 and could only fight with arrow-heads and hadn't chemistry 

 enough to poison them. Most truly yours, J. EUSKIN. 



The geological memoir which was read at the Royal 

 Society this year, and published in 1864, was one in 

 which its author widely generalised, and was entitled : 

 " Theoretical Considerations on the Conditions under 

 which the (Drift) Deposits containing the Remains of 

 Extinct Mammalia and Flint Implements were accum- 

 ulated, and on their Geological Age. On the Loess 

 of the Valleys of the South of England, and of the 

 Somme and the Seine." 



The following letter apparently refers to this 

 Memoir : 



