Darwin-Hooker Letters : Letter from Hooker, J. D. to Darwin, C. R. on 24 July 1862 : 48r
'Hooker, J. D.'
Wife's health improved by trip. Heer's collections convince Hooker that Miocene vegetation was Himalayan, not American, as Heer supposed. Zurich promises to be a good natural history school. Review of Natural History Review in Parthenon 1 (1862): 373–5.