Huxley, T.H., and Darwin.—and the Duke of Argyll.—on Embryology.—on Geographical Distribution.—on Lamarck.—Letter to J.W. Judd from.—on Lyell.—on Man.—on "The Origin of Species".—on Selection.—on Teleology.—on transmission of acquired characters.—various.
Hybridisation.
Hybrids, Sterility of.
Hyracodon.
Iberis umbellata.
Ikeno.
Imperfection of the Geological Record.
Ingenhousz, on plant physiology.
Inheritance of acquired characters.
Insects and Flowers.