iMn:\ 



4v>t 



(illus.), ISO, JUl; jlyii,^ (illu.s.;, 

 .'^35; migrations of, 340, 



Fish louse (illus.), 359. 



Fission, reproduction by, 213; (il- 

 lus.), 211. 



Fitte.st, survival of, 62. 



Flatwonn, regeneration of (illus.), 

 285; (illus.), 2.s«). 



Flounder, development of (illus.), 

 240. 



Flower bug, variation in pattern of 

 (illus.), 135. 



Flowers, varieties originated by 

 Burbank, 98. 



Focke, 192. 



Fol, H., theory of protoplasmic 

 structure, 250. 



Foot, of horse, evolution of (illus.), 

 177; of human embryo (illus.), 

 460; of mammals, hology of 

 digits of (illus.), 178. 



Forel, A., 394. 



Fossils, 17, 290. 



Fowls, skulls of (illus.), 88. 



Friedenthal, 460. 



Frog, male carrj'ing eggs on back 

 (illus.), 73. 



Galls (illus.), 341; (illus.), 342. 



Galton, F., 165. 



Gasterosteus, 207; cataphradus (il- 

 lus.), 209. 



Gastrula, 228. 



Gaudry, A., 298. 



Gauss, 141, 



Goddes, P., 1. 



Gelasimus sp. (illus.), 38. 



Genealogy of animals, 36. 



Generation, 211; spontaneous, 12, 

 212. 



Geography, relation of species to, 

 311. ^ 



Geology, table of ages of, 298. 



Georgine, variation in inflorescence 

 of (illus.), 161. 



Geranium, improvQinent in (illus.), 

 103. 



(iiTiii cfll.N, tluHtrj' of the jnirity of, 



191. 

 (iillx-rt.C. H., :J03. 

 Gill .slitw of vertebrati'**, 179. 

 CMX'the, W. von, 1. 4.S. 103, 289. 

 Gongtflus (jotujjflouitM (illiw. ), 415. 

 ('lonimn fnctoralf (illu«.), 34; (illiut.), 



2()1. 

 Gorilla (illu.s.). l.^O; face of (illus.). 



457; head of (illus.), 457; young 



(illus.), 458. 

 Gray, A., 197, 320. 

 Grcgarina poli/morj)ha (illus.), 210. 

 Gregarinida-, reproduction in (illus.), 



21(). 

 Gregariousness, 380. 

 Grus amerirana (illus.), 20. 

 Grosbeak, cardinal, iliagram of 



variation in. !3(i. 

 GryUolaljxi (illus.), 314; (illus.), 315. 

 Gulick, J. T.. 123. 



Haa.<^e. K.. 423. 



Haeckel, K., 32, 197. 2*^0 l."? UVl 



404, MM\, 4(i7. 

 Hair covering of human ombr>'«» 



(illus.), 174; covering of Ku.v<ian 



dog-man (illus.), 174. 

 Hawaii, cla.ssification and tli.»*tnbu- 



tion of Dn'panidii' of, 124; 



distribution of land snaih of, 



123. 

 Henneguy. L., 2*V0. 

 Henslow, (J.. 124. 

 Hennlity. 53. 103; defuml. 10,1; 



laws of. 1S4; Mendrl'ti law «if, 



1H7. 

 Herlitzkn. 279. 

 nt'nnaphnHliti.'<m, 223. 

 Heron, flying (illu.««.), 24. 

 Hertwig, ().. 27S. 

 Hcterogenewij*, 54; iheorirsi of. 114; 



tlu'onk' of, 15<). 

 Jlipjxntarnia rotr 



oi, 1.30; \'jiriaii"ii III j'.i <iw'i 



(illuM^. 132: (ilhw \ i:t:i. 

 Hbp. wild .'ind domr?«ir 'illus \ 89. 



