Flowers of the Primrose destroyed by birds.

Nature, vol. ix., 1874, p. 482; vol. x., p. 24.

Sexual Selection in relation to Monkeys.

Nature, vol. xv., 1876, pp. 18, 19.

Testimonial to Mr. Darwin. Evolution in the Netherlands. Letter of Mr. Darwin.

Nature, vol. xv., 1877, pp. 410-412.

A Biographical Sketch of an Infant.

Mind, vol. ii. (No. 7, July 1877), pp. 285-294.
Les Débuts de l’intelligence; Esquisse biographique d’un petit enfant, Revue Scientifique, tom. 13, 1877, pp. 25-29.

The Contractile Filaments of the Teasel.

Nature, vol. xvi., 1877, p. 339.