Encloses seeds.

Lecoq’s work mentions instances of apparent dimorphism. [H. Lecoq, Études sur la géographie botanique de l’Europe, 9 vols. (1854–8).]

Estimates seven weeks and £10 to compute JH's nebulae data. Suggests JH use new 'Skeleton Form.'

Is preparing a volume of his articles [Essays on scientific and other subjects (1862)], to one of which he would like to add a postscript referring to CD’s Origin [pp. 100–1]. Sends proposed postscript for CD’s approval.

Is JDH sure it is a Bletia, just received? Its pollen very different from any Epidendreæ he has seen. If it is Bletia, Lindley’s grand divisions are fanciful.

Accepts JDH’s offer to collect cases of dimorphism.

James Bateman has sent a lot of orchids with Angraecum sesquipedale. What a proboscis the moth that sucks its 11½ inch nectary must have!

Discusses manuscript by H. W. Bates [Naturalist on the river Amazons (1863)].

Mentions CD’s forthcoming book [Orchids].