opologist".--on Colour.--and
Darwin.--on the Descent of Man.--contributions to Evolution by.

Haeckel, E., on Lamarck.--on Language.--a leader in the Darwinian
controversy.--on Lyell's influence on Darwin.--various.

Hacker.

Hagedoorn, on hybridisation.

Hales, S.

Hansen.

Harker, A.

HARRISON, J.E., on "The Influence of Darwinism on the Study of
Religions".

Hartmann, von.

Harvey.

Haupt, P., on Language.

Haycraft.

Hays, W.M.

Hegel.

Heliconius narcaea.

Heliotropism in animals.

Henslow, Rev. J.S. and Darwin.

Hensen, Van.

Herbst, his experiments on sea urchins.

Heracleitus.

Herder.

Heredity and Cytology.--Haeckel on.--and Variation.--various.

Hering, E., on Memory.

Herschel, J.

Hertwig, R.

Hertwig, O.

Hertz.

Heteromorphosis.

Heterostylism.

Heuser, E.

Hewitt.

Heyse's theory of language.

Hinde, G.J., his work on Funafuti.

Hipparion.

Hippolyte cranchii.

Hirase.

History, Darwin and.

Hobbes, T.

Hobhouse.

HOFFDING, H., on "The Influence of the Conception of Evolution on Modern
Philosophy".

Hofmeister, W.

Holmes, S.J., on Arthropods.

Holothurians, calcareous bodies in skin of.

Homo heidelbergensis.

Homo neandertalensis.

Homo pampaeus.

Homo primigenius.

Homunculus.

Hooker, Sir J.D., and Darwin.--on Distribution of Plants.--on
Ferns.--Letter to the Editor from.

Horner, L.

Horse, Geological history of the.

Huber.

Hubert and Mauss.

Hubrecht, A.R.W.

Hugel, F. von.

Humboldt, A. von.

Humboldt, W. von.

Hume.

Hutcheson.

Hutton.

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.

Instinct.

Instincts, experimental control of animal.

Ipomaea purpurea.

Irish Elk, an example of co-adaptation.

Jacobian figures.

Jacoby, "Studies in Selection" by.

James, W.

Janczewski.

Jeans, J.H.

Jennings, H.S., on Paramoecium.

Jentsch.

Jespersen, Prof., Theory of.

Johannsen, on Species.

Jones, Sir William, on Language.

Jordan.

JUDD,