INDEX. 387 



DESCENT. 



139 ; in the Times , iii. 139 ; in the 

 Saturday Review ', iii. 139 ; in the 

 ' Quarterly Review,' iii. 146. 



Descent with modification, primary 

 importance of the doctrine of, ii. 

 371. 



Descriptive work, blunting effect of, 



". 379; 

 Design in Nature, i. 315, iii. 353, 373, 



377> 378, 382 ; argument from, as to 



existence of God, i. 309. 



, evidence of, ii. 312. 



Devonian strata, insect with stridula- 



ting apparatus in the, iii. 97. 

 Devonshire caverns, pre-glacial remains 



in, ii. 365. 

 ' Dichogamy ' of C. K. Sprengel, iii. 



303- 



Dicotyledons, chief development of, 

 dependent on the development of 

 sucking insects, iii. 285 ; develop- 

 ment of the mammalia dependent on 

 that of, iii. 285 ; importance of the 

 study of fertilisation in the most 

 ancient forms of, iii. 285. 



Dieffenbach, Dr., translation of the 

 'Journal ' by, i. 323. 



Dielytra, iii. 259. 



Diet, i. 1 1 8, 123. 



Differences, individual, and single varia- 

 tions, relative importance of, iii. 107, 

 109. 



, sexual, iii. 135. 



'Different Forms of Flowers,' publica- 

 tion of the, i. 97 ; iii. 309 ; review 

 of the, in ' Nature,' iii. 310. 



Digestion in Drosera, iii. 322, 223, 



325. 

 , process of, in Pinguicula, iii. 



324. 

 Dimorphism and trimorphism in plants, 



papers on, i. 91. 

 ' Dicecio-dimorphism,' iii. 303. 

 Dioncea, dissolution of albumen and 



gelatine by, iii. 323. 

 Direction, supposed sense of, in animals, 



iii. 221. 



Diseases, infectious, origin of, iii. 234. 

 Dispersion of animals, iii. 182. 

 Dissecting, i. no. 

 Distribution of organisms, evidence 



from the, as to former continental 



DUBOIS-REYMOND. 



extensions, ii. 77 ; means of, ii. 



82. 

 , geographical, ii. 79, 149 ; iii. 



230. 



Divergence, principle of, i. 84 ; ii. 124. 

 Dogs, fondness for, i. 30, 113. 

 , Mongrdisation of, in Bey rout, 



iii. 252. 

 , supposed multiple origin of 



domestic, ii. 230, 346. 

 Dohrn, Dr. Anton, letters to, on the 



reception of the ' Descent of Man,' 



iii. 133 ; on the Naples Zoological 



Station, iii. 198 ; offering to present 



apparatus to the Zoological station at 



Naples, iii. 225 ; on F. M. Balfour's 



illness, iii. 251. 

 ' Dolomit-Riffe,' by E. von Mojsis- 



ovics, iii. 234. 



Domestication, variation under, ii. 29. 

 Don, Mr., i. 275. 

 Donders, Prof., letter to, on election to 



the Royal Society of Holland, iii. 



163. 



, letter to, on Drosera^ iii. 325. 



Donkey, stripes on the legs of the, ii. 



112. 



Down, residence at, i. 78-79, 318 ; 

 daily life at, i. 108 ; local influence 

 at, i. 142 ; sequestered situation of, 

 i. 319, 321. 



Dragon-flies,attracted by bright colours, 

 iii. 94. 



Dragoon, funeral of a, i. 30. 



Draper, Dr., paper before the British 

 Association on the "Intellectual de- 

 velopment of Europe," ii. 321. 



Dress, i. 112. 



Droscra, observations on, i. 95 ; iii. 

 317-327 j action of glands of, iii. 337 ; 

 action of ammoniacal salts on the 

 leaves of, iii. 318, 319, 324, 325, 

 326 ; dissolution of albumen and 

 gelatine by, iii. 323 ; effect of very 

 light objects on the hairs of, iii. 

 319. 



Dryness, villosity of plants due to, ii. 

 98. 



Dryopithecus, iii. 163. 



Dublin Hospital Gazette, review of the 

 ' Origin ' in the, ii. 375. 



Du Bois - Reymond, Prof., ii. 354 ; 



2 C 2 



