ntific and Educational," by Sir William Dawson, 1901.
-antagonism to Darwinism.
-criticism of "Origin" by.
-criticism of Hooker's arctic paper.
-Hooker on.

Dayman, Captain, on soundings.

De la Beche, Sir Henry Thomas (1796-1855): was appointed Director of the
Ordnance Geological Survey in 1832; his private undertaking to make a
geological survey of the mining districts of Devon and Cornwall led the
Government to found the National Survey. He was also instrumental in
forming the Museum of Practical Geology in Jermyn Street.

Death, Darwin on immortality and.

Decaisne.

Decapods, Zoea stage of.

Dedication of Hackel's "Generelle Morphologie" to Darwin.

Dedoublement, theory of.

Deep-sea soundings, Huxley's work on.

Degeneration, in ammonites.
-of culinary plants.
-and parasitism.

Degradation.

Deification of Natural Selection.

Deinosaurus, and free-will.

Delboeuf's "La Psychologie," etc.

Delpino, F., on Asclepiadeae and Apocyneae.
-on crossing.
-on dichogamy.
-on fertilisation mechanism.
-letter to.
-praises Axell's book.
-mentioned.

Demosthenes, quoted by Darwin.

Denudation, Dana on.
-Darwin on marine.
-comparison of subaerial and marine.
-Ramsay and Jukes overestimate subaerial.

Deodar, Hooker on the.

Deposition and denudation as measure of time.

Derby, Lady, letter to.

Descent, Falconer on intermediate forms.
-from single pair.
-Owen's belief in doctrine of.
-resemblance due to.

Descent of Man.

"Descent of Man," reference in, to effect of climate on species.
-reviewed by John Morley.
-transmission of characters dealt with in.
-Darwin's work on.
-Sir W. Turner supplies facts for.
-Wallace on.

Descent with modification, Wallace on.

Desert animals, and protective colouring.

Design, Darwin on.
-examples of.
-Lord Kelvin on.

Deslongchamps, L., on fertilisation of closed flowers.

Desmodium gyrans, Darwin's experiments on.
-leaf movements.

Development, acceleration and retardation in.
-floral.
-importance of, in classification.
-rate of.
-sudden changes during.

Devonshire Commission, report on physiological investigation at Kew.

Devonshire, flora of.

Dewar, Prof., and Sir Wm. Thiselton-Dyer, on vitality of seeds in liquid
hydrogen.

Diaheliotropism, F. Muller's observations.

Dialogue, title of paper by Asa Gray.

Diatomaceae, beauty of.
-conjugation in.

Dicent