Jour. Proc. Linn. Soc., vol iii., 1859, pp. 45-62.
On the variation of organic beings in a state of nature; on the natural means of selection; on the comparison of domestic races and true species.
Linn. Soc. Jour., vol iii., 1859, (Zool.) pp. 46-53;
Halle, Zeitschr. Gesell. Nat. Bd. xvi., 1860, pp. 425-459.
Fertilisation of Vincas.
Gardeners’ Chronicle, 1861, pp. 552, 831, 832.
On the Two Forms, or Dimorphic Condition, in the species of Primula, and, on their remarkable Sexual Relations.
Linn. Soc. Jour., vol. vi., 1862 (Bot.), pp. 77-96.
On the three remarkable sexual forms of Catasetum tridentatum, an Orchid in the possession of the Linnean Society.
Linn. Soc. Jour., vol. vi., 1862 (Bot.), pp. 151-157.
Observations sur l’hétéromorphisme des fleurs et ses conséquences pour fécondation.