Darwin-Hooker Letters : Letter from Darwin, C. R. to Hooker, J. D. on 1 July 1857 : 1r

'Darwin, C. R.'

Darwin-Hooker Letters

George Henslow's curtness to Hooker: 'an attack of religion'. Embryonic leaves. Adaptive functions and taxonomic significance of cotyledons. Asa Gray. Separation of sexes in U. S. trees.

University of Cambridge Cambridge Digital Library