The Influence of External Conditions 27 



Morphologische und physiologisch chemische Untersuchungen ueber 



die Pigmente der Lepidopteren, I. Die gelben und roten Farb- 



stoffe der Vanessen. Arch. f. d. Ges Physiol. XCVIII. 1903. 

 Die Ergebnisse der experimentellen Lepidopterologie. Biol. Centralb, 



xxiv. 1904. 

 MERRIFIELD, F. Report of Progress in Pedigree Moth-Breeding. Trans. 



Entomol. Soc. London. 1888. 



Incidental Observations in Pedigree Moth-Breeding. Ibid. 1889. 

 Systematic Temperature Experiments on Some Lepidoptera in 



all Stages. Ibid. 1890. 

 Conspicuous Effects on the Markings and Colouring of Lepidoptera. 



Ibid. 1891. 

 The Effects of Artificial Temperature on the Colouring of Several 



Species of Lepidoptera with an Account of Some Experiments on 



the Effects of Light. Ibid. 1892. 

 The Effects of Temperature in the Pupa Stage on the Colouring of 



Pieris napi, Vanessa atalanta, Chrysophanus phlceas, and Ephyra 



puctaria. Ibid. 1893. 

 Temperature Experiments in 1893 on Several Species of Vanessa and 



Other Lepidoptera. Ibid. 1004. 

 Recent examples of the effect on Lepidoptera of extreme Temperature 



applied in the Pupal Stage. Proceedings of the South London En- 

 tomol. and Nat. Hist. Soc. 1897. 

 PARKER, G. H., and STARRATT, S. A. The Effect of Heat on the Color 



Changes in the Skin of Anolis Carolinensis (Cuv.). Proc. of the 



Amer. Acad. of Arts and Sci. XL. 1904. 

 PICTET, A. LTnfluence des changements de nourriture sur les chenilles 



et sur la formation in sexe de leurs papillons. Compt. Rend. Soc. 



de phys. et d'hist. Nat. Geneve, XIX. 1902. 

 L'influence des changements de nourriture des chenilles et sur le 



developpement de leurs papillons, I. Compt. Rend. Soc. Hebret. 



sc. Nat. Geneve. Arch. sc. phys. et nat. 

 Variations des papillons provenant des changements d'alimentation 



de leurs chenilles et de 1'humidite". Arch. sc. phys. et nat. Geneve. 



XVI. 1903. 

 Notes complementaires sur les variations des papillons provenant de 



1'humidite'. Soc. de Phys. et d'hist. Nat. Bull. d. stances, I. 1903. 

 POULTON, E. B. The Essential Nature of the Coloring of Phytophagous 



Larvae (and their Pupae), with an Account of Some Experiments 



upon the Relation between the Color of such Larvae and that of 



their Food Plants. Proc. of the Roy. Soc. 1885. 

 A Further Enquiry into a Special Color-Relation between the Larva 



of Sinerinthus ocellatus and its Food Plants. Proc. of the Roy. 



Soc. 1886. 

 An Inquiry into the Cause and Extent of a special Color-Relation 



between certain exposed Lepidopterous Pupae and the Surfaces 



which immediately surround them. Proc. of the Roy. Soc. XLII. 



1887. 



The Experimental Proof of the Protective Value of Color and Mark- 

 ings in Insects in reference to their Vertebrate Enemies. Proc. 



of the Zool. Soc. of London, 1887. 

 Further Experiments upon the Color- Relation between certain Lepi- 



