littlt I . 



723 



Gtfltriton fuscus, habits, 617. 



Glacial epoch ; butterflies mono- 

 goneutic during, 19, 72 ; in N. 

 America, 622. 



Gooch, \V. U., description of larvae 

 refcrretl to, 436 ; crepuscular 

 butterflies, 476 ; sexual dimor- 

 phism of caterpillars, 535. 



Gooseberry, not increased in size, 

 654. 



Goss, H., larva of C.porcellus, 188. 



Gossc, P. H., embryonic larva of 

 P. Homer us, 167. 



Grapta interrogations, experiments 

 with, 149. 



Green colour of caterpillars, 293, 

 310. 



Growth, law of, 655. 



Gynandromorphism in butterflies, 

 249. 



Gynanisa Jsis, young larva, 166. 



HAF.CKEL, Prof., on metagenesis, 

 80, 83 ; on ontogeny, 270 ; on 

 adaptation, 281, 589 ; on the 

 biogenetic law, 611; on repro- 

 duction and growth, 664 ; the 

 plastidule theory, 667. 



Hare, white variation of, 660. 



Hartmann, E. von ; his views exa- 

 mined, 645 ; on variability, 646, 

 652, 655. 664; on heredity, 657 ; 

 his " Philosophy of the Un- 

 conscious," 670 ; on correlation, 

 670, 673 ; on the nature of species, 

 671 ; on design in nature. 696 ; 

 on the sensibility of atoms, 714. 



Helmholtz, Prof., on natural laws. 

 668 ; on the senses, 711. 



Ht-nitiris hylat, larva, 255. 



Heredity, alternating and con- 

 tinuous, 24 ; cyclical, 66 ; homo- 

 chronic, 63, 431 ; not mechanical, 

 657 ; nature of, 667. 



Herrich-Schaffcr, wing neuration 

 of butterflies, 449. 



Hertwig, on teeth of Amphibia, 

 376. 



Heterogcnesis, definition of, 82, 96 ; 

 parallelism between and meta- 



morphosis, 86 ; origination of, 

 89. 

 Heyden,Von, reproduction of Aphis, 



97- 



Hil^endorf, on fossil shells, 109. 



Hipparchia semele, colour varia- 

 tions, 8. 



Hoffmann, Ernst, on immigration 

 of European butterflies. 77. 



Horsneld and Moore, figures of 

 caterpillars referred to, 193, 195, 

 196, 243, 253, 261. 



Hiibner, figures of caterpillars re- 

 ferred to, 193, 208, 211, 218, 231, 

 267. 



Humboldt, Baron, on the Lake of 

 Mexico, 608, 621 



Huxley, Prof., " Anatomy of In- 

 vertebrated Animals " referred 

 to. 498. 



Hydromcdusa, alternation of 

 generations in, 83 ; want of 

 parallelism in different genera- 

 tions of, 395. 



Hydrozoa, asexual reproduction and 

 polymorphosis. 83. 



Hymenoptera, incongruence among, 

 48! ; imnginal characters, 481 ; 

 causes of incongruence, 486. 



ICHTHYODEA, characters of, 577, 



T 579- 



Incongruence; in Lcpidopterous 

 families, 437 ; genera, 446, 449 ; 

 species, 451 ; varieties, 456 ; two 

 kinds of, 458, 502 ; in Hymen- 

 optera, 481 ; in Diptera. 488 ; 

 different forms of, 503 ; depen- 

 dent upon action of environment, 

 505, 507, 508. 



Inheritance ; homochronic, 63, 

 431 ; definition of cyclical, 66; 

 limited by sex, 68. 



Insects, ancestry of, 493. 



Intermaxillary gland of Axolotl, 

 623. 



J. 



JULLIEN, on Lissotriton purutatus, 

 591- 



