Federico Delpino’s book has very nearly all that THF has found and a great deal more.

Sympathises with THF at being forestalled by Delpino, but urges him to publish confirmation.

On the fertilisation of Tacsonia and Passiflora.

Encloses a poem, "The Biological Teleologist", written after reading Delpino.

Sends notes on observations of Passiflora and Tacsonia; Hooker thinks they would be worth reading at Linnean Society.

Comments on notes made by THF on Passiflora and Tacsonia. Suggests he examine more species. Recalls his own observations on P. princeps and Tacsonia.

Observations on Passiflora.

Hildebrand on geraniums.