Sends advice on naturalist matters.

W. H. Harvey’s work [with Wilhelm Sonder, Flora capensis (1859–65)],

and Robert Brown’s publication ["On the organs and mode of fecundation in Orchideae and Asclepiadeae", Trans. Linn. Soc. Lond. 16 (1833): 685–745].

Writes of having seen in S. America a Hymenopteran with tarsi covered with pollen-masses of Asclepias.

Interested in JPMW’s researches in South American caverns.

Mentions poor health.

Thanks for tracings.

Discusses JPMW’s paper on Bonatea [see 5411].

Mentions Robert Brown’s views on pollen.

Has forwarded JPMW’s papers to the Linnean Society [four articles by J. P. M. Weale, J. Linn. Soc. Lond. (Bot.) 13 (1870–2): 42–58].

Comments on JPMW’s findings concerning flowers and their fertilisation.