Sends some historical data to illustrate the elevation of the coast at Valparaiso in recent times.

Gives details of his observations which lend support to the view that Chile is rising with respect to the sea. Reports some observations and opinions with regard to earthquakes and volcanic action in the area.

Forwards list of questions from CD relating to GNS’s paper on Caldy [see 576].

Sends MS of his paper, "On the coloration of flowers and fruits", filling a gap in CD’s theory relating to these structures, and asks for CD’s comments.

Plans a book on colour sense.

Thanks for comments on paper and references to related works. Clarifies points on colour distinction between energy-absorbing (green) and energy-expending (bright-hued) portions of plants and on the influence of flower colour in modifying the insect organism.

Has sent copy of his new book, Colour-sense [1879]; in anticipation of criticism, he justifies his reliance on recorded observations rather than experiments, by the heavy demands of his career as a journalist.

Thanks for criticisms of Colour-sense.

Clarifies his views that actions desirable for species result in development of nervous organs capable of pleasurable stimulation.

Believes that all "tastes" occurring in nature are explicable with reference to ancestral habits and that none is purely arbitrary.

Thanks for postcard informing him of Delboeuf’s review of his book; he had already seen review.

Is recuperating well in France.

Thanks for compliments on Evolutionist at large.

Reports on his improving health.

Thanks for copy of Origin with its flattering inscription.

Hopes some day to have leisure to do original research.

CD and other friends who got up fund for GA in 1879 have now bought him a microscope; thanks CD, especially as the idea came from him; plans to take up original observations with it.

Explains that it was his son, Grant, who sent JAA’s article defending Darwinian origins of morality.

Comments on CD’s Canadian admirers

and asks whether Grant may visit CD at Down.

Encloses draft bill about vivisection; CD and friends may have influence enough to get it introduced in Commons or Lords; TA and the Cruelty Society do not. The Society, however, can pay for preparation of bill.

Encloses extract which suggests that CD and friends oppose any restriction on vivisection; asks CD to state his principles. Another bill is being sketched for Cruelty Society.

Learned of CD’s interest in new facts bearing on origins of specific forms and sends proof sheets of his Monograph on tubularian hydroids [1871–2] stating his views on the descent of existing hydroids from ancient graptolites.

Thanks for sending translation of A. W. Malm’s paper ["On flatfishes", K. Svensk. Vetensk. Akad. Handl. N. F. 7 (1867–8) no. 4]; thinks it establishes that eye migrates across surface of head rather than through the skull.

Considers the relationship between direction of locomotion and the presence of stalked eyes in Crustacea.

On Royal Society Council’s deliberations on awards. GJA argues that older men should be given first claim lest they die neglected; CD had stressed importance of encouraging younger men.

In his admirable work on expression CD has left out influence of fifth pair of cerebral nerves on the portiodura and on physiognomy; sends reference to his paper on this subject ["On certain points in the physiology and pathology of the fifth pair of cerebral nerves", Med.-Chir. Trans. 52 (1869): 27–42].

Asks for autographs.