n at school of.

Cassia, Darwin's experiments on.
-sleep-movements of leaves.
-two kinds of stamens.
-Todd on flowers of.

Cassini, observations on pollen.
-on ovaries of Compositae.

Cassiope hypnoides.

Castes, Galton on.

Catalpa.

Catasetum, fertilisation of.
-Huxley's scepticism as to mechanism of.
-morphology of flower.
-aerial roots.
-sexual forms of.
-C. saccatum, flower of.
-C. tridentatum, three sexual forms.

Caterpillars, colour and protection.
-experiments by Weir.

Cats, Belgian society to encourage homing of.
-habits of.

Cattell, on crossing sweet peas.

Cattleya, Darwin suggests experiments on.
-self-fertilisation.

Caucasus, wingless insects of.

Cauquenes, baths of.

Cave-fish, reference in the "Origin" to blind.

Cave-rat.

Caves, animals in Australian.

Cavia, specimens collected by Darwin.

Ceara Mountains, L. Agassiz on glaciers of.

Cebus, expression when astonished.

Cecidomyia, ancestor of.

Cedars, Hooker on.

Celebes, geographical distribution in.

Cellaria.

Celosia, experiment on.

Celts, Bree on.

Centipedes, luminosity of.

Centradenia, two sets of stamens in.
-position of pistil.

Cephalanthera, flower.
-single pollen-grains.
-C. grandiflora, fertilisation mechanism.

Cephalopods, Hyatt on embryology of.
-Hyatt on fossil.

Cephalotus.

Cervus campestris, of La Plata.

Cetacea, Lyell on.

Ceylon, Malayan types in.
-plants.
-former connection with Africa.
-dimorphic plants of.

Chaffinch, courtship of.

Chalazal fertilisation, Miss Benson on.
-foreshadowed by Darwin.
-Treub on.

Chalk, occurrence of Angiosperms in.
-as oceanic deposit.

"Challenger" (H.M.S.), reports reviewed by Huxley.
-account of sedimentation in.

Challis, Prof.

Chambers, Robert (1802-71): began as a bookseller in Edinburgh in 1816, and
from very modest beginnings he gradually increased his business till it
became the flourishing publishing firm of W. & R. Chambers. After writing
several books on biographical, historical and other subjects, Chambers
published anonymously the "Vestiges of the Natural History of Creation" in
1844; in 1848 his work on "Ancient Sea Margins" appeared; and this was
followed by the "Book of Days" and other volumes. ("Dict. Nat. Biog."
1887; see also Darwin's "Life and Letters," I., pages 355, 356, 362, 363.)
-announced as author of "Vestiges of Creatio