720 



Index. 



Ascaris nigrovenosa, propagation 

 of, 90. 



Askenasy, on limits of variability, 

 114, 



Atavism and arrested growth, 587. 



Africa meUagris,CQ\O\ii variations 

 of, 8. 



Atoms, actions of, 710; sensibility 

 of, 714. 



Axolotl, transformation into Am- 

 blystoma, 555 ; experiments with, 

 558 ; duration of transformation, 

 563 ; conditions of metamorphosis 

 of, 564 ; distinguishing characters, 

 575- 



B. 



BAER, Karl Ernst von, on the 

 mechanism of nature, 639 ; on the 

 vital force, 641 ; on the theory of 

 selection, 694 ; on causality and 

 purpose, 708. 



Baird, Prof., on the development of 

 species of Amblysloma, 623. 



Balbiani, reproduction of Aphides, 



97- 

 Baltour. F. M., on insect phylogeny, 



485, 494. 

 Bates, H. W., local variation in 



Amazonian Lepidoptera, 69. 

 Bees, embryological development 



of, 483- 



Belt, i homas, on coloured frogs. 

 294 ; on the glaciation of North 

 America, 622. 



Biogenetic law, corollary of, 611. 



Birchall, E., local variation in 

 British Lepidoptera. 60. 



Blanchard, on oviposition of Am- 

 blystoma, 594. 



Boisduval, figures of larvae referred 

 to, 216, 218, 245 ; on snake-like 

 appearance of the larva of D. 

 niccea, 342 ; on the relationship 

 of Eitchloe belia and E. ausonia, 

 48. 



Bombycida, early stage of larvae, 

 1 66. 



Bombyx. B. cynthia, colour changes 

 in larva, 7 ; B. nenstria, cater- 

 pillar refused by lizards, 336; 



B. Rubi, caterpillar eaten by 

 lizards, 338. 



Boscher, h. , dimorphism of larva 

 of S. ocellatus, 241, 306. 



Brauer, insect phylogeny, 493. 



Burmeister, figures of larvae referred 

 to, 195, 190, 224, 232, 255, 261, 

 26 3> 43 6 > 437 ; early stages of 

 larvae of Argentine butterflies, 

 1 66. 



Butler, A. G., affinities of genus 

 Acronycta, 169 ; genera of Charo- 

 campince, 190, 192, 194, 196 ; 

 genera of Smerinthince, 233, 243, 

 244 ; genera of Macroglossince, 

 2 53> 2 54 ; species of Pterogon, 

 256 ; genera of Sphingince and 

 Acherontiina , 262 ; on coloured 

 larvae being rejected, 336 ; 

 affinities of Sestuttf, 370 ; de- 

 scriptions and figures of new 

 Sphinx-larvae, 524, 526. 



Biitschli, embryology of bees, 483. 



Butterflies, action of warmth in 

 producing changes in colour and 

 marking, 58 ; summer and winter 

 larvae and pupae alike in season- 

 ally dimorphic species, 64 ; 

 seasonally dimorphic species 

 hibernate as pupae, 73 ; odori- 

 ferous organs, 102 ; early stages 

 of larvae, 165 ; di- and poly- 

 morphism of, 250 ; crepuscular 

 habits of certain species, 475. 



C. 



Callosune eupompe, polymorphism 

 of female, 251. 



Cameron, P., on larva of S. ocellatus 

 241, 282 ; protective habits of 

 saw-fly larvae, 290, 294. 



Carlin, W. E., on Siredon liche- 

 noides, 630. 



Caterpillars, origin of markings- 

 161 ; means of defence, 289; de- 

 fensive habits, 290 ; food of 

 brightly coloured species, 294 ; 

 habit of concealment by day, 291, 

 296 ; phytophagic variability, 305, 

 531 ; seasonal variability, 305 ; 

 experiments with ocellated species, 



