JBT. 35.] BAGSHOT SANDS. 63 



was subsequently lost). 5thly, A leg of a poulet a la jardiniere 

 (this was considered trifling with one's appetite). 6thly, Ponding 

 au biscuit sauce d'abricots (admitted to be good, and eaten accord- 

 ingly). 7thly, Filet de chevreuil pique (excellent, but considered 

 to be very tardily served). Sthly, Gateau de pommes. 9thly, 

 Dessert of grapes accompaniments, four petits pains and three 

 tumblers of water. Now you will, I am sure, my dear sister, 

 be as much pleased with your husband's performance as I was, 

 indicating, as I believe it does, an excellent state of health. 

 My own satisfaction I expressed half an hour after dinner, and 

 what do you think ? Why, he doubted whether he had really 

 made a good dinner. He thought he could eat some more. In 

 fact he seemed to consider my opinion as rather unreasonable. 

 I must tell you, however, that my own proceedings were in keep- 

 ing with his, with the exception of a limitation in the soup, the 

 bouilli, the vegetables, and the bread. . . . 



I regret much I have not my calotype with me. What a 

 picture for the children their papa packed ! Adieu, my dearest 

 Isabella. My best love to my mother ; kisses to the dear children. 

 Your affectionate brother, Jos. PRESTWICH, Jr. 



In 1847 two important memoirs appeared, both of 

 which were published in the ' Geological Society Journal/ 

 vol. iii., for 1847. One was " On the Main Points of 

 Structure and the Probable Age of the Bagshot Sands, 

 and on their presumed equivalents in Hampshire and 

 France," after the discussion on which the Palseon- 

 tographical Society was formed. In this paper the 

 author pointed out the immediate superposition of the 

 Bagshot Sands on the London Clay, and their division 

 into three series, of which the central one was syn- 

 chronous with the Bracklesham beds and the Calcaire 

 Grossier. The other was also one of his early correl- 

 ation papers, " On the Probable Age of the London 

 Clay, and its Relations to the Hampshire and Paris 

 Tertiary Systems," in which he showed that the previ- 

 ously received opinion of the age of the clays of Sheppey, 



