opism, Darwin on.

German, Darwin's slight knowledge of.

Germany, converts to evolution in.
-opinion on the "Origin" in.
-Englishmen rejoice over victory of.

Germination of seeds, Darwin's experiments on effect of salt water.

"Germs and Vestiges of Disease," Dobell's.

Gesneria, Darwin on dimorphism of.

Gestation of hounds.

Gibraltar, elevation and subsidence of.

Gilbert, Sir J.H.: of Rothamsted.
-letter to.
-on nitrogen in worms' casting.
-and Sir J. Lawes, Rothamsted experiments.

Glacial period, absence of phanerogams near polar regions in N. America
during.
-Bates on.
-climatic changes since.
-conditions during.
-continental changes since.
-Darwin's views on geographical changes as cause of.
-destruction of organisms during.
-destruction of Spanish plants in Ireland.
-distribution of organisms affected by.
-duration of.
-effect on animals and plants.
-and elephants.
-S.E. England dry land during.
-Greenland depopulated during.
-introduction of Old World forms into New World subsequent to.
-migration during.
-mundane character of.
-subsidence of Alps during.
-Croll on.
-existence of Alpine plants before.
-Hooker on.
-Glen Roy and.
-Lyell on.
-extinction of mammals during.
-Wallace on.
-movement of Europe since and during.

Glaciers, Agassiz on.
-Lyell on.
-Tyndall's book on.
-as agents in the formation of lakes.
-Darwin on structure of.
-Hooker on Yorkshire.
-Moseley on motion of.
-physics of.
-Parallel Roads of Glen Roy formed by.
-rock-cavities formed by cascades in.
-in S. America.
-in Wales.

Gladstone, Herbert Spencer on criticisms by.

Glass, Dr., on grafting sugar-canes.

Glen Collarig, absence of terminal moraines.
-terraces in.

Glen Glaster, absence of terminal moraines.
-barriers of detritus.
-Milne on.
-shelves of.

Glen Gluoy, shelves of.

Glen Roy, Parallel Roads of.
-L. Agassiz on.
-Darwin on.
-Darwin's mistake over.
-Darwin on ice-lake theory of Agassiz and Buckland.
-glacier theory of.
-history of work on.
-Hooker on.
-marine theory of.
-Milne-Home's paper on.
-investigated by Geological Survey.
-coincidence of shelves with watersheds.
-measurement of terraces.

Glen Spean.

Glen Turret, MacCulloch on.

Gloriosa, Darwin's experiments on leaf-tendrils.

Glossotherium Listai.

Gloxinia, peloric forms of.

Gnaphalium.

Gneiss, Darwin on.

God, Darwi