Movement in plants.

Dimorphism.

Would welcome FM’s opinion of Pangenesis.

Asks for [John?] Smith’s exact count of seeds of the crossed and self-fertilised Victoria water-lily. Similar question on Euryale seed and seedlings.

JDH’s coming [BAAS] Presidential Address.

Otto Staudinger’s catalogue shows prices of female Lepidoptera to be higher than those of males.

Thanks for Variation.

CD must be happy about the tendency toward acceptance of his views, though it is regrettable that France is backward in this regard.

His own work goes slowly, but he still hopes his work on artificially produced monstrosities will help to answer the question of the origin of species.

Discusses apes and their relationships to each other. Writes particularly of the gibbon, its structure and well-developed legs giving it the ability to walk without using its hands.

Thanks CD for sending him copy of Variation.

Describes results of his brother’s [August Müller] experiments on effect of climate on maize.

Like ancestors of horses, young tapir is also striped.

Discusses how they might enquire about any provisions in the laws of partnership concerning lunacy.

In Dec. 1867, JH offered small theodolite to Pierce Butler for survey of Sinai peninsula, and agreed to serve as co-trustee of Sinai Survey Fund with Henry James. Heard nothing until news of Butler's death and announcement that F. W. Holland and George Williams would take leadership and that RM was involved. Renews JH's offer, but health prevents JH from attending meetings.

Proposes a principle for the establishment of musical scales to satisfy musicians, not mathematicians, as JH had apparently done.

Has made arrangements to have copies of solar autographs sent. Discusses sunspots. Inquires whether JH knows of the University of Lund in Sweden.