May go to Paris next summer about barnacles.
Unable to appreciate second volume of Alexander von Humboldt’s Cosmos [1848].
Recommends review by Sir John Herschel [Edinburgh Rev. 87 (1848): 170–229].
Recommends book by Mary Somerville [Physical geography (1848)].
Mentions article [on species] by M. E. Chevreul [Ann. Sci. Nat. (Bot.) 3d ser. 6 (1846): 142–214].