,262 



Van Hise, C. R. 



'04. A treatise on metamorphism. U. S. Geol. Surv. Monogr., 

 Vol. 47. 1286 pp. 



Veatch, A. C. 



'06. Geology and underground water resources of northern 

 Louisiana and southern Arkansas. U. S. Geol. Surv., Pro- 

 fessional Paper No. 46. 422 pp. 



Vestal, A. G. 



'15a. Local distribution of grasshoppers in relation to plant as- 

 sociations. Biol. Bull., 25 : 141-180. 

 '13b. An associational study of Illinois sand prairie. Bull. 111. 



State Lab. Nat. Hist., 10: 1-96. 

 '14. Internal relations of terrestrial associations. Am. Nat, 48: 

 413-445- 

 Walsh, B. D. 



'64. On the insects, coleopterous, hymenopterous and dipterous, 

 inhabiting the galls of certain species of willow. Proc. Ent. 

 Soc. Phil., 3 : 543-644- 



Warming, E. 



'09. Oecology of plants: an introduction to the study of plant 

 communities. 422 pp. Oxford [Eng.]. 



Webb, J. L. 



'09. The southern pine sawyer. U. S. Dept. Agr., Bur. Ent., 

 Bull. No. 58, Pt. IV, pp. 41-56. 



Webster, F. M. 



'80. Notes upon the food of predaceous beetles. Bull. 111. State 

 Lab. Nat. Hist., Vol. I, No. 3, pp. 149-152; reprint (1903), 

 pp. 162-166. 



'90. Report of observations upon insects affecting grains. U. S. 

 Dept. Agr., Div. Ent., Bull. No. 22 : 42-72. 



'93. Insects affecting the blackberry and raspberry. Bull. Ohio 

 Agr. Exper. Sta., No. 45: 15 1-2 17. 



'03a. Some insect inhabitants of the stems of Blymus canaden- 

 sis. U. S. Dept. Agr., Div. Ent., Bull. No. 40, n. s., pp. 92-93. 



'03b. Some insects attacking the stems of growing wheat, rye, 

 barley, and oats, with methods of prevention and suppression. 

 U. S. Dept. Agr., Div. Ent., Bull. 42. 62 pp. 



