1910] Tracy: White Markings in Birds. 311 



LITKRA'iTRE CITED. 



Bailey, F. M. 



1902. Handbook of birds of the western United States. Boston, 



1902; 8vo., pp. 1-512, 33 pis. and 601 text figures. 



Chapman, F. M. 



19(17. The warblers of North America. New York, 1907; 8vo., pp. 

 i-viii, 1-306, 24 pis., 12 half-tone pis. 



Coues, E. 



1903. Key to North American Birds. Boston, 1903; roy. 8vo., pp. i-xli, 



] 1152, v. 1 and 2, :i ids., 747 text figures. 



Cunningham, J. 



L900. Sexual dimorphism in the animal kingdom. London, 1900; 8vo., 

 pp. i-xi, 1-317. 



Jones, L. 



1900. Songs of the warblers. Oberlin College Lab. Bull. no. 10, pp. 

 1-56. 



Marshall, G., and Poulton, E. B. 



1902. Five years' observations and experiments on the Bionomics of 

 South African insects; chiefly directed to the investigation 

 of mimicry and warning coloration. Trans. Entom. Soc. 

 London, 1902, pp. 287-541, 23 pis. 



Piepers, M. C. 



1907. Nock einmal Mimicry, Selection, Darwinismus, Leiden, 1907, 



8vo., pp. 1-481. 



Poulton, E. B. 



1890. The colors of animals. London, 1890. Svo., pp. i-xv, 1-360, 1 pi., 

 66 text figures. 



Eiddle, O. 



1908. The genesis of fault bars and the cause of alternating light 



ami dark fundamental bars. Biol. Bull., v. 14, no. 6, pp. 327- 

 370, 4 pis., 5 text figures. 



Reighard, J. 



1908. An experimental field study of waruing coloration in Coral 

 Beef Fishes. Washington, D. C, Carnegie Inst. Papers from 

 Tortugas Lab., pp. 261-331, 5 pis. 



