Sends a draft of memorial to Admiralty [to be signed by geologists and palaeontologists] requesting that an expedition to survey Strait of Magellan collect fossils discovered by Admiral B. J. Sulivan [see 5142].

Has taken memorial to G. H. Richards, the Hydrographer. He favours the proposal and will instruct Capt. Mayne. THH will communicate with Dr Cunningham, the naturalist for the expedition.

Thanks for 4th ed. of Origin.

What a basting CD gives "our mutual friend" [Owen].

Glad he argrees with THH on Jamaica affair [Gov. Eyre and the "rebellion"].

First impressions of Haeckel’s Generelle morphologie.

Has received THH’s [Lessons in elementary] Physiology [1866]

and reread Man’s place.

Asks THH to read revised "Hybridism" chapter in new edition of Origin. Hopes it will change THH’s view.

Convinced of P. S. Pallas’ view of loss of sterility under domestication.