elf to
research for the rest of his life. At the time of his father's death,
in 1841, seven volumes of the "Prodromus" had appeared: Alphonse
completed the seventeenth volume in 1873. In 1855 appeared his
"Geographie botanique raisonnee," "which was the most important work of
his life," and if not a precursor, "yet one of the inevitable
foundation-stones" of modern evolutionary principles. He also wrote
"Histoire des Savants," 1873, and "Phytographie," 1880. He was lavish
of assistance to workers in Botany, and was distinguished by a dignified
and charming personality. (See Sir W. Thiselton-Dyer's obituary in
"Nature," July 20th, 1893, page 269.)
-on influence of climate.
-on Cupuliferae.
-on extinction of plants in cultivated land.
-"Geographie botanique."
-letters to.
-on introduced plants.
-on naturalised plants and variation.
-review by Asa Gray of.
-on relation of size of families to range of species.
-on social plants.
-mentioned.

Candolle, C. de, on latent life in seeds.

Canestrini, on proportion of sexes in Bombyx.

Canna, fertilisation of.

Cape of Good Hope (see also Africa).
-Australian flora compared with that of.
-flora.
-variable heaths of.
-Darwin's geological observations on metamorphism at.
-European element in flora.
-Meyer and Doege on plants of.

Cape Tres Montes, the "Beagle's" southern limit.

Caprification, F. Muller in "Kosmos" on.

Capsella bursa-pastoris, cross-fertilisation of.

Carabus, origin of.
-in Chili.
-A. Murray on.

Carbon dioxide, percentage in atmosphere.

Carboniferous period, glacial action.
-subsidence during.

Cardamine, quasi-bulbs on leaves.

Carduelis elegans, length of beak.

Carex.

Carices, of Greenland.

Carlisle, Sir A., on Megatherium.

Carlyle, Mrs., remark on Owen.

Carmichael, on Tristan d'Acunha.

Carmichaelia.

Carnarvonshire, Darwin on glaciers of.

Caroline Islands, want of knowledge on flora.

Carpenter, Dr., on influence of blood in crossing.

Carrier-pigeon (see Pigeon), preference for certain colours in pairing.

Carrot, flowers of.

Carruthers, W., on potato experiments.

Carter, H.J., on reproduction of lower animals and foreshadowing of
Chemotaxis.

Carus, Professor Victor: translated several of Mr. Darwin's books into
German (see "Life and Letters, III., page 48).
-letters to.

Casarea, a snake peculiar to Round Island.

Case, G., Darwi