56 NOTE-BOOKS. [1842-46. 



shire Street, Portland Place, which was then the family 

 home. Early in 1842, when the scope of his geological 

 work had opened out, and when several important 

 memoirs were in contemplation, his business responsi- 

 bilities became heavier. His father had always been 

 speculative, and it was decided, as being best for the 

 interests of the firm, that Joseph Prestwich, senior, 

 should withdraw, and that our geologist should take 

 the head of affairs. Aided by a partner, he agreed to 

 this arrangement. Thus henceforward business journeys 

 were at an end, and travellers were appointed in his 

 place. But this increased responsibility did not stem 

 the tide of geological papers, which flowed on apace. 

 His business residence in 1843 was 20 Mark Lane, and 

 here he continued until 1855. 



His note-books 1840-1850 show the extraordinary 

 industry with which he investigated the Tertiary 

 deposits in every locality of our southern and eastern 

 counties, in order to make out their detailed structure 

 and origin, and to compare and correlate , them with 

 the foreign Tertiaries. He literally went over every 

 acre of ground. The index in one note-book gives 133 

 places, the observations on each locality being frequently 

 illustrated by sections. An entry of quite a different 

 character in a note-book for 1846 may be quoted, as it 

 throws light on his frugal mode of life. " 1846, 'The 

 Three Crowns,' at Walton near Sarum a capital house, 

 excellent ale, home-brewed. Dinner off a loin of South 

 Down mutton, household bread, 1 pint ale, and butter 

 9d. Conscience forbid, so paid Is. Id." 



His habits, in short, were of the simplest. He never 

 indulged in smoking, but this probably arose from a 

 dislike to tobacco in any form. He scarcely ever rode 

 on horseback, preferring to go to his sections every- 



