Darwin-Hooker Letters : Letter from Darwin, C. R. to Hooker, J. D. on 10 May 1848 : 1r
'Darwin, C. R.'
Confident of species theory as result of applying it to cirripede sexual systems. Darwin's opinion of E. Blyth. Hooker should meet Blyth, inquire about domesticated varieties, study insular flora, solve coal-plant problem.