BIBLIOGRAPHY. 



In the following bibliography I have given only the more important refer- 

 ences. Some of the smaller references are printed in the text, but a far 

 larger number, amounting to several hundred, do not appear at all. 



Adams, C. C. 



1902. Southeastern United States as a center of Geographical Distribution of Fauna 

 and Flora. Biol. Bull., vol. in, No. 3, pp. 115-131. 



Agassiz, Iv. 



1848-1849. Twelve Lectures on Comparative Bnibryology. Boston, Lowell Institute. 



Ai,i,EN, J. A. 



1877. The Influence of Physical Conditions in the Genesis of Species. The Radical 

 Review, pp. 107-140 ; May. 



Bates, H. W. 



1862. Contributions to an Insect Fauna of the Amazon Valley. Lepidoptera : Heli- 

 conidae. Trans. Linn. Soc. London, vol. xxiii, pp. 495-566, pis. 55-58. 



Bateson, W. 



1894. Materials for the Study of Variation, Treated with Special Regard to Discon- 

 tinuity in the Origin of Species. London, 598 pp. 



BEMMEI.EN, J. F. Van. 



1889. Ueber die Entwicklung der Farben und Adern auf den Schmetterlingsfliigeln. 



Tijdsch. der Nederland. Dierkundige Vereeniging, Ser. 2, Deel 2, pp. 



235-247. 

 BoTTi^ER, Max. 



1894. Die animalischen Faserstoffe. Bin Hilfs- und Handbuch fiir die Praxis, umfas- 



send Vorkommen, Gewinnung, Kigenschaften und technische Verwendung 

 sowie Bleichen und Farben tierischer Faserstoffe, nach dem gegenwartigen 

 Standpunkte der Wissenschaft bearbeitet. viii 4-215 pp., 16 figs. Wien : 

 A. Hartleben. 



BUMPUS, H. C. 



The Variations and Mutations of the Introduced Sparrow, Passer domesticus, 

 Biol. Lect., Woods Holl, in 1896. pp. 1-15. Boston. 



BURKII,!,, I. H. 



1895. On Some Variations in the Number of Stamens and Carpels. Jour. Linn. Soc. ' 



Bot., vol. 31, pp. 216-245. 



Burt, H. 



1865. Potato Beetle. Coleman's Rural World, Sept. 15, 1865. 



C01.1.INS, C. C. 



1870. Colorado Potato Beetle. Am. Ent. and Bot., vol. 2, p. 341. 



Cope, K. D. 



1904. The Primary Factors of Organic Evolution, pp. viiH-547. Chicago. 



COSTE, F. H. P. 



1890-1891. Contributions to the Chemistry of Insect Colors. The Entomologist, vol. 

 XXIII, pp. 128-132, 155-168, etc. Continued and concluded in vol. xxiy. 



CrampTon, H. E. 



1904. Experimental and Statistical Studies upon Lepidoptera. I, Variation and 

 Elimination in Philosamina cynihia. Biometrika, vol. iii, pp. 1 13-130. 



315 



