508 



INDEX 



Willows, Walsh on galls of, i. 261 ; 

 Wichura on hybrid, i. 261 



Wilson, A. S., letters to, ii. 419-22 ; 

 on Russian wheat, ii. 419-22 



Wind-fertilised trees and plants, abund- 

 ant in humid and temperate regions, 

 i. 492 



Wingless birds, transport of, i. 475 



Wings of ostrich, i. 162 



Wire-bird, of St. Helena, i. 484, 487 



Witches' brooms, ii. 422 



Wives, resemblance to husbands, i. 320 



Wollaston, T. V., biographical note, i. 

 481 ; catalogue of insects of Canary 

 Islands, i. 482 ; Darwin and Royal 

 medal, i. 255 ; in agreement with 

 Falconer in opposition to Darwin's 

 views on species, i. 455 ; Insecla 

 Maderensia, i. 482 ; on rarity of 

 intermediate varieties in insects, i. 

 430 ; review on the Origin by, i. 

 141 ; on varieties, i. 94 ; mentioned, 

 i. 167, 172, 176 



Wolverhampton, abrupt termination of 

 boulders near, ii. 168 



Wood, fossil, i. 23, 24, 26 



Wood, T. W., drawings by. ii. 101 



Woodcock, germination of seeds carried 

 by, ii. 4, 5 ; protective colouring of, 

 ii. 87 



Woodd, C. H. L., letter to, ii. 132, 133 



Woodpecker, adaptation in, i. 156; 

 and direct action, i. 306 ; form of 

 tail of, i. 191 



Woodward, A. S., on Neomylodon, 

 ii. 361 ; and C. D. Sherbom, Cata- 

 logue of British Fossil Vertebrata, 

 i. 206 



Woodward, S. P., biographical note, i. 

 96 ; letters to, i. 96, 97, 145 ; ii. 231 



World, age of the, ii. 7, 163, 211, 212 



Worms, Darwin's work on, ii. 212-17, 

 447 ; destruction by rain of, ii. 214, 

 215 ; intelligence of, ii. 213, 214 



Wrangel's Travels in Siberia, i. 385 



Wreck of the Favourite, Clarke's, it. 2 



Wright. C., on bees' cells, i. 124 ; letters 

 to, i. 355, 356 ; ii. in, 112 ; review 

 by, i. 332 ' 



Wright, G. F., extract from letter from 



Asa Gray, to, ii. 415 

 Wydler, on morphology of cruciferous 



flower, ii. 287 

 Wyman, J., biographical note, i. 169 ; 



letter from, i. 169 ; on spontaneous 



generation, i. 321 ; mentioned, i. 242 



XENOGAMY, term suggested by Kerner, 

 ii. 413 



Xenoneiira antiquorum, Devonian in- 

 sect, ii. 82 



Xerophytic characters, not confined to 

 dry-climate plants, ii. 251 



YANGMA Valley, Hooker's account of 



dam in, ii. 152 

 Yeo, Prof. Gerald, ii. 438 

 Yew, origin of Irish, i. 52 

 York, British Assoc. meeting (1881), 



ii. 24 (1844), 120; Dallas in charge 



of museum, ii. 353 

 Yorkshire, Hooker on glaciers in, ii. 



156 

 Yucca, fertilisation by moths, ii. 386 



ZACHARIAS, Otto, letter to, i. 38, 367 

 Zante, colour of Polygala flowers in, 



i. 102 

 Zea, Gartner's work on, i. 218, 230, 



231 ; hermaphrodite and female 



flowers on a male panicle, ii. 308 ; 



varieties received from Asa Gray, 



ii. 314 

 Zeiller, R., " Le Marquis G. deSaporta, 



sa Vie . . ., " i. 376 

 Zinziberacese, ii. 400 

 Zittel, Karl A. von. Handbuch der 



Pal ff onto logic, i. 206 

 Zoea stage, in life-history of decapods, 



i. 342, 345, 347 



Zoological Gardens, dangerous to sug- 

 gest subsidising, i. 112 

 Zoological nomenclature, i. 68, 69 

 Zoologist, Darwin as, i. 254 

 Zoonomia, Erasmus Darwin's, i. 125 

 Zygana (Burnet-moth), mentioned by 



Darwin in his early recollections, i. 5 



Printed by Hazell, Watson &> Viney, Ld. } London and Aylesbury. 



