n."
-on derivation of marine from land and fresh-water organisms.
-Darwin visits.
-on Glen Roy.
-on land-glaciation of Scotland.
-letters to.
-letter to Milne-Home from.
-on scepticism of scientific men.
-mentioned.

Chance, use of term.

Chandler, S.E. (see Farmer, J.B.)

Changed conditions, Schmankewitsch's experiments on effect of.

Charles Island, Darwin's plants from.

Charlock, germination of old seeds.

Chatham Island, Darwin's collection of plants from.
-Travers on.

Checks, use of artificial.

Chemotaxis, foreshadowed by Carter.

Chiasognathus Grantii.

Childhood, Charles Darwin's.

Children, Darwin on.
-experiment on emotions of.
-colour-sense.
-coloured compared with white.
-comparison between those of educated and uneducated parents.
-expression.
-development of mind.
-intelligence of monkeys and.

Chili, elevation of coast.
-geology of.
-plants common to New Zealand and.
-Carabus of.
-Darwin on earthquakes and terraces in.

Chillingham cattle, Darwin and Hindmarsh on.

Chiloe, description of.
-forests.
-geology.
-plants on mountains.
-boulders.

China, expedition to.

Chinese, explanation of affinities with Mexicans.

"Chips from a German Workshop," Max Muller's.

Chloeon dimidiatum, Lord Avebury on.

Chlorite, segregation of.

Chlorophyll, Darwin's work on action of carbonate of ammonia on.

Chonos Islands, Darwin's collections of plants from.
-Darwin's account of.
-geology of.
-potato.

Christy, H.

Christy, Miller, on oxlip.

Chrysosplenium oppositifolium.

Chthamalus, in the chalk.

Cicada, experiments on eggs.
-Muller on rivalry of.
-Walsh on.
-C. septendecim, Sharp's account of.

Cinchona, Hooker on different rates of growth in seedlings.

Circumnutation, F. Muller's observations on.

Cirripedes, see Barnacles.

Cistus, hybridism of.

Citrus, unequal cotyledons.
-polyembryonic seeds.

Civilisation, effect on savages.

Claparede, convert to Darwin's views.
-and Mdlle. Royer.

Clapperton's "Scientific Meliorism," letter of Gaskell in.

Clark, on classification of sponges.

Clark, Sir James (1788-1870): was for some years a medical officer in
the Navy; he afterwards practised in Rome till he moved to London in
1826. On the accession of Queen Victoria he was made Physician in
Ordinary and received a baronetcy; he was elected into the Royal Society
in 1832. ("Dict