Summary

Declares himself CD’s defender; but he is a "teleologist".

Sends CD three more papers.

His research confirms his faith and belief in variability of species.

Summary

Acknowledges receipt of CD’s Primula paper [J. Linn. Soc. Lond. (Bot.) 10 (1869): 437–54].

Nectar-sucking birds fertilise tropical flowers.

Writing a "Dualistic apologia for Pangenesis" [see translation in Sci. Opin. 2 (1869): 365–7, 391–3, 407–8].

Homology of the orchid rostellum.

Summary

Comments on Hermann Crüger’s paper, sent by CD, on fertilisation of orchids [J. Linn. Soc. Lond. (Bot.) 8 (1865): 127–35].

Observations on dichogamy in grasses (wheat, rye, barley).

Has not yet read CD’s reply to his article on Pangenesis [Collected papers 2: 158–60].