Aggressive behaviour of a bullfinch toward new arrival in JJW’s aviary.

Sexual differences in goldfinches: size of beaks.

Sexual selection in Lepidoptera.

Thinks Dr Alex Wallace’s observations on Bombyx not conclusive in proving that no preference is shown by females.

Quotes information from Dr Power on colour of sexes of Crustacea in Mauritius [see Descent 1: 335].

Asks CD to collect from the Jermyn Street Museum a box containing a skull and bones which belong to Mr Cumberbatch.

Now quite understands Pangenesis. Satisfaction given by it, as CD says, may depend on one’s mental constitution. In all cases of descent JDH has always thought "all the properties of the parents are transmitted in the one cell and were diffused to every part of the future offspring".

Tyndall believes he feels atoms as firmly as St Paul believed he saw Christ.

JM offers a note for 400 guineas as author’s payment on sale of 1250 copies of 2d issue of Variation.