Impressed by JS’s attempts to fertilise Gongora.

CD has large collection of notes on orchids, but does not know when he will publish on them again.

Asks for JS’s papers on sterility of individual orchids and on Drosera.

Supports, in his orchid paper, CD’s view that sterility occurs at random [Trans. Bot. Soc. Edinburgh 7 (1863): 543–50].

Cannot get his Drosera paper published [abstract in Edinburgh New Philos. J. 2d ser. 17 (1863): 317–18].

J. H. Balfour has arranged a position for him at a Cinchona nursery. Reluctant to take this position in part because of his experiments for CD.

Asks CD’s advice and solicits his aid in finding a better colonial position. James McNab mistreats him.

Has written to Hooker for his advice about the Darjeeling position. JS should not refuse the position on account of his experiments.

CD does not think he could be wrong about the stigma of Bolbophyllum.

Will not write up Drosera for years.

Praises JS’s experiments. Invites him to send a paper to Linnean Society.

L. C. Treviranus says all species of Primula present two forms except P. longiflora.

Discusses Darjeeling position. Thanks CD for advice.

Will send orchid paper [see 4087].

Sends abstract from Edinburgh Courant of his orchid sterility paper [see 4087]. Balfour altered title to obscure its theoretical nature.

Sends specimens showing curious variation.

Thanks JS for abstract of orchid sterility paper from Edinburgh Courant. His case of individual sterility will be of highest use to CD. Criticises JS’s writing. Points out weaknesses in the organisation of his argument and the use of inflated, imprecise language.