Darwin-Hooker Letters : Letter from Hooker, J. D. to Darwin, C. R. on 14 Aug 1873 : 167r
'Hooker, J. D.'
Has observed Darwin's points. Except for leaves of Nelumbium, would have supposed both wax and hairs were connected with absorption or respiratory functions. May subserve some function connected with rays of sun. Watering most prejudicial in the hot sun: a splendid subject for experiments. Adam is a good man.