CONTINUOUS PROCESS OF ADJUSTMENT 143 



Fourth Annual Rep. Mo. Bot. Garden, pp. 181- 

 226. 

 BEUTENMULLER, W. 



1904. The Insect-Galls of the Vicinity of N. Y. City. Am. 



Mus. Jour., Vol. IV, pp. 89-124. 



A descriptive illustrated catalogue. Beutenmiiller 

 has published several important papers on galls in 

 the Bull. Amer. Mus. Nat. History. 

 ABLER, H. (Trans, by C. R. STRATON.) 



1894. Alternating Generations. A Bibliogical Study of Oak 



Galls and Gall Flies, pp. 198. Oxford. 

 COOK, M. T. 



1905. The Insect Galls of Indiana. Twenty-ninth Ann. 



Rep. Dept. Geol. and Natural Resources of Indiana, 

 1904, pp. 801-867. 

 Descriptive illustrated catalogue. 

 HOUARD, C. 



1908-1909. Les Zoocecidies des Plantes d'Europe et du 

 Bassin de la Mediterranee. Tome I, pp. 569 ; II, 

 pp. 573-1247. Paris. 



KlRCHNER, O. VON. 



1911. Blumen und Insekten, ihre Anpassungen aneinander 



und ihre Gegenseitige Abhangigkeit. pp. 436. 



Leipzig. 

 KUSTER, E. 



1911. Die Gallen der Pf lanzen. Ein Lehrbuch fur Botaniker 



und Entomologen. pp. 437. Leipzig. 

 Ross, H. 



1911. Die Pflanzengallen (Cecidien) Mittel- und Nord Europas 



ihre Erreger und Biologic und Bestimmungstabellen. 



pp. 350. Jena. 



b. Subterranean and Cave Associations 



BANTA, A. M. 



1907. The Fauna of Mayfield's Cave. Carnegie Inst. Pub. 

 No. 67. pp. 114. 



