ser's Magazine."
-on elevation and earthquakes.
-on mountain-building.
-researches in physical geology.
-mentioned.

Horner, Leonard, F.R.S. (1785-1862): was born in Edinburgh, at the age
of twenty-one he settled in London, and devoted himself more
particularly to Geology and Mineralogy, returning a few years later to
Edinburgh, where he took a prominent part in founding the School of Art
and other educational institutions. In 1827 Mr. Horner was invited to
occupy the post of Warden in the London University,a position which he
resigned in 1831; he also held for some years an Inspectorship of
Factories. As a Fellow of the Royal Society, Mr. Horner "took an active
part in bringing about certain changes in the management of the Society,
which resulted in limiting to fifteen the number of new members to be
annually elected..." In 1846 Horner was elected President of the
Geological Society; and in 1860 he again presided over the Society, to
the interests of which he had long devoted himself. His contributions
to the Society include papers on Stratigraphical Geology, Mineralogy,
and other subjects.--"Memoirs of Leonard Horner," edited by his
daughter, Katherine M. Lyell (privately printed, 1890).
-letters to.
-memoirs of.
-address to Geological Society.
-on coal.
-on Darwin's "Geological Observations."
-visits Down.
-mentioned.

Horner, Mrs. L.

Horse, ancestry.
-Arab-Turk and English race-.
-hybrids between Quagga and.
-in N. and S. America.
-equality of sexes in race-.

Horsfall, W., letter to.

Hottonia, dimorphism of.

Hounds, gestation of.

Howard, L.O.

Hoya carnosa, Darwin's work on.

Humble-bees, as agents of fertilisation of orchids.

Humboldt, Bates' description of tropical forests compared with that by.
-conversation with.
-on heath regions.
-on migration and double creation.
-"Personal Narrative."
-on violet of Teneriffe.
-Darwin's opinion of.
-on elevation and volcanic activity.
-mentioned.

Humboldt and Webb, on Zones on Teneriffe.

Hume, Darwin on Huxley's "Life" of.

Humming-birds, agents of fertilisation.

Hunger, expression by sheldrakes of.

Husbands, resemblance between wives and.

Hutton, Frederick Wollaston, F.R.S., formerly Curator of the Canterbury
Museum, Christchurch, New Zealand, author of "Darwinism and Lamarckism, Old
and New," London, 1899.
-letter to.
-review of "Origin."

Hutton, James, (1726-9