Autograph Letter Signed, sending a proof sheet of one his works, discussing marginal corrections. 1 page 9 x 7 inches, laid down on album page, minor defects only. Faversham, 10 March 1841. Joshua Trimmer (1795-1857), geologist. He published memoirs on the Origin of the Soils which cover the Chalk of Kent; On the Geology of Norfolk, as Illustrating the Laws of the Distribution of Soils (1847); and Proposals for a Geological Survey, specially directed to Agricultural Objects (1850); in this respect he was a pioneer in agricultural geology. He was also the author of another useful work Practical Geology and Mineralogy (1841).