ray, Dr. John Edward, F.R.S. (1800-75): became an assistant to the
Natural History Department of the British Museum in 1824, and was
appointed Keeper in 1840. Dr. Gray published a great mass of zoological
work, and devoted himself "with unflagging energy to the development of
the collections under his charge." ("Ann. Mag. Nat. Hist." Volume XV.,
page 281, 1875.)
-and British Museum.

Greatest Happiness principle.

Grebes, as seed-eaters.

Greenland, absence of Arctic Leguminosae.
-connection with Norway.
-flora of.
-introduction of plants by currents.
-as line of communication of alpine plants.
-migration of European birds to.

Greg, W.R.: Author of "The Enigmas of Life," 1872.
-Darwin on his "Enigmas of Life."
-letter to.

Grey, Sir G., on Australian Savages.

Grinnell expedition, reference to the second.

Grisebach, A.

Grisebach, A.W.

Grossulariaceae.

Grouse, Natural Selection and colours of.
-Owen describes as distinct creation.

Grypotherium Darwini.
-G. domesticum.

Guiana, Bates on.

Gulf-weed, Darwin on.

Gully Dr.

Gunther, Dr., visit to Down.

Gurney, E., articles in "Fortnightly" and "Cornhill."
-"Power of Sound."

Gymnadenia, course of vessels in flower of.
-Asa Gray on.
-penetration by pollen of rostellum.

Gynodioecism in Plantago.

Haast, Sir Julius von, (1824-87): published several papers on the
Geology of New Zealand, with special reference to glacial phenomena.
("Quart. Journ. Geol. Soc." Volume XXI., pages 130, 133, 1865; Volume
XXIII., page 342, 1867.)
-on glacial deposits.

Habenaria, Azorean species (see also Peristylus viridis).
-course of vessels in flower.
-Lord Farrer on.
-morphology of flower.
-H. bifolia, flowers.
-a subspecies of H. chlorantha.
-H. chlorantha, considered by Bentham a var. of H. bifolia.
-structure of ovary.

Hackel, E., convert to Darwin's views.
-"Generelle Morphologie."
-Die Kalkschwamme.
-"Freedom in Science and Teaching."
-letters to.
-on pangenesis.
-proposed translation of his book.
-on reviews of "Origin" in Germany.
-on sponges.
-substitutes a molecular hypothesis for pangenesis.
-visits Down.
-on absence of colour-protection in lower animals.
-on change of species.
-on Linope.
-on medusae.

Haematoxylon, bloom-experiments on.
-sleep-movements.

Halictus, Fabre's paper on.

Halimeda, Darwin's description of.

Halleria, woody nature of.