CONTINUOUS PROCESS OF ADJUSTMENT 127 



1903. Notes on Insectivorous Coleoptera. Bull. 111. State 

 Lab. Nat. Hist., Second Edition, Vol. I, pp. 167-176. 



1883. The Food Relations of the Carabidae and Coccinellidse. 

 Bull. HI. State Lab. Nat. Hist., Vol. I, No. 6, pp. 

 33-64. 



FORBUSH, E. H. 



1907. Useful Birds and their Protection. Mass. State Board 

 Agr. pp. 437. Boston. 



FOREL, A. 



1896. Ants' Nests. Smithsonian Report for 1894, pp. 



479-505. 

 Ants' nests, and symbiosis between plants and ants. 



GAMBLE, F. W., and KEEBLE, F. 



1903. The Bionomics of Convoluta roscoffensis with Special 

 Reference to its Green Cells. Quart. Jour. Micros. 

 Sci., Vol. XLVII, pp. 363-431. 

 A study of the ecology of a Turbellarian worm, its 

 food, habitat, and behavior. 



HEIM. 



1898. The Biologic Relations Between Plants and Ants. 

 Smithsonian Report for 1896, pp. 411-455. 



HOPKINS, A. D. 



1909. Insect Depredations in North American Forests 

 and Practical Methods of Prevention and Control. 

 U. S. Dept. Agr., Bur. Ent., Bull. No. 58, pp. 

 57-101. 



Contains many facts of much ecological value showing 

 the interrelations existing between forests and in- 

 sects. Good examples of insects as initiators of 

 successions and changes in insect associations. 



HUBBARD, H. G. 



1897. The Ambrosia Beetles of the United States. U. S. 



Dept. Agr., Div. Ent., Bull. No. 7, N. S., pp. 9-80. 

 The relations of bark beetles to fungi. 



