iNi)i:x 



I7«» 



Chipmunks of California, chuisifica- 

 tion of, 117; (illus.), 11^. 



Chroniosonics, (Icfmcd, 2.53. 



Cliri^sojHi, e^^s of (illus.), 22(). 



Cicada, variation in til)ial spines of, 

 134; septcTulccein, variation in 

 tibial spines of, 136. 



Cladonoius Immhcrlianus (illus.), 

 409. 



Classes of animals, 35. 



Classification, dotermincd hy lioinol- 

 ogies, 173; of animals, 33. 



Cleavage, 22S. 



Coccidiiim liOwbii, life cycle of 

 (illus.), 352. 



Coccidium ovijorme (illus.), 21G. 



Cock, white-crested black Polish 

 (illus.), 81. 



Cockerel, silver-laced Wyandotte 

 (illus.), 82. 



Cockroach, egg case of (illus.), 340; 

 showing variation in number of 

 tarsal segments (illus.), 149. 



Color, in animals, 398; in organisms, 

 how produced, 403; in protec- 

 tive resemblance, 400; in .sexual 

 selection, 400; u.ses of, 399. 



Coloration, directive, 419, 



Colors, warning, 410; table of insect, 

 405. 



Commensal ism, 370. 



Communism, 309, 385; advantages 

 of, 397; basis and origin of, 395. 



Conditions, primar}', of life, 38. 



Conjugation, of nodiluva (illus.), 

 220; of Vorticdla nebidifvra 

 (illus.), 221. 



Conklin, E. G., 70, 199, 201. 203. 



Convergence of characters, 204. 



Cope, E. D., 55, 197. 



Cordyceps, growing on a cater|)illar 

 (illus.), 3()3. 



Corn, showing results of hybridi/a- 

 • tion, 194. 



Correns, K., 192, 



Coues, E., 24, 119. 



Crab, fiddler (illus.), 3.8; hermit. 



comnicnHal life with ixilyps 

 (illuw.), 373; (illuH.^ 374; im'ltt- 

 inori>luwiH of (illiiM.), 2.'«. 



Cramer, F., 1 1. 



Crieket, mole (illu-s), 3Jl: (illus.), 

 345. 



Crotalwf adnmnnteus (ilhffi.), 10. 



Cni.stacea and their larNu (ilhin.), 

 .%5; para-sitic, .'i58. 



Cryf)tomcrui jnjtonirn, atavistic vari- 

 ation of (illus.), 100. 



Cucuinaria sp. (illus.;, 19. 



Cucumbers, sea (illus.), 19. 



Cuenot, L., 185, 191, 192, 



Cunningham, J. T., 201. 



Cyanoritta rristaia, nestlings of 

 (illus.). 442. 



Cycle of life, 240, 



Cyclops, maturation in. 272; niatuni- 

 tion of eggs of fillu.s.), 203, 



Cyp.sclurus (illus.), 3.'i5. 



Cyrtophyllus crcpUans (illus.). 401. 



Dall. W., 197, 205. 



Darbishire. \V.. 192. 



Darwin, C, 9. 22. 4.S. tiO. <i3. 07. ' - 



71. 70. 80. 137. 141. VM, 2.>>, 



311, KiO, 407. 40.S. 

 Darwinisni, defiruii. 48, 

 Davenport, C, B., 192. 

 I)(>ath, 241. 

 DeeapiKJ. showing extnionlin.Tnk' n*- 



genenition (illu.H.). 147. 

 Det^r, he.'ul of. shcnvinj; variation in 



horns (illus.). 140; hor--^ ■■'" 



interliK-k»il (ilhis.>, 43S. 

 Degenenition, 347; hy f|ui«'sr<'nrc. 



•MV.\. 



Delage, V., 29, 40. 252 



De.seent, tlw'or}' of, 10; th^•^»ri<•^ ol 



control of. 10^. 

 Determinants of \N'einn> •"" 251. 



IX'velo|)ment. 224; d 't in. 



230; einbr>'onir. 



mental. 244; fir in 



cml>ry«>nir (ihiix.). 227: of 



HtMinder (ilhiM.). 240 of Mon- 



