-on Acropera and Gongora.
-Darwin on his classification of orchids.
-letters to.
-on Melastomaceae.
-on orchids.
-Hooker reviews Darwin's Orchid book in style of.
-mentioned.

Lingula, persistence of.
-Silurian species.

Link, on Alpine and Arctic plants.

Linnaeus.

Linnean Society, Bentham's address.
-Collier's picture of Darwin in rooms of.
-Darwin's paper on Linum.
-Darwin advises Bates to give his views on species before.
-Wallace's paper on the Malayan papilionidae.

Linnet, a migratory bird.

Linope, E. Hackel on.

Linum, Darwin's work on.
-dimorphism of.
-interaction of pollen and stigma.
-mucus in seeds of.

Linum flavum.
-L. grandiflorum, two forms of.
-L. Lewisii, experiments on.
-L. trigynum.
-L. usitatissimum, circumnutation of.

Lister, Lord, on spines of Hedgehog.

Listera, fertilisation of.
-L. cordata, fertilisation of.
-L. ovata, fertilisation of.

Litchfield, Mrs. (see Darwin, Henrietta).
-criticism of Huxley.

Littoral shells, glacial period and.

Liverpool, British Association meeting at (1870).

Livingstone, D., on the distribution of thorny plants.

Lobelia, Darwin's experiments on.
-fertilisation mechanism of.
-fertility of.
-L. fulgens, Scott's experiments on.

Lochaber, Parallel Roads of (see also Glen Roy).
-evidence of ice-action.

Lochs, Laggan (Loggan), ice-action in.
-Roy, Darwin disbelieves in existence of.
-Spey, shelves of.
-Treig, ice-action in.
-Milne's account of.

Locust grass, germination of.

Locusts, blown out to sea.
-plants from dung of.

Logwood, leaf-movement of.
-See Haematoxylon.

Loiseleuria procumbens.

London clay, supposed germination of seeds from.

"London Review," Darwin's opinion of.
-correspondence between Owen and editor in reference to "Origin."

Longchamps, L. de, on crossing in Gramineae.

Longevity, Darwin on animals' and man's.

Lonsdale, William (1794-1871): obtained a commission in the 4th Regiment
at the age of sixteen, and served at Salamanca and Waterloo. From 1829
to 1842 he held the office of Assistant-Secretary and Curator of the
Geological Society. Mr. Lonsdale contributed important papers on the
Devonian System, the Oolitic Rocks, and on palaeontological subjects.
("Quart. Journ. Geol. Soc." Volume XXVIII., page xxxv., 1872.)
-mentioned.

Lopezia, fertilisation of.

Lophura viellottii, colour of.

Loss, nature of.

Love,