2()9 



Cowles, H. C. 



'99. The Ecological Relations of the Vegetation on the Sand- 

 dunes of Lake Michigan. Bot. Gaz., Vol. XXVII., pp. 95- 

 117, 167-202. 281-308. 361-391. 

 '01. The Physiographic Ecology of Chicago and Vicinity ; a 

 Study of the Origin, Development, and Classification of 

 riant Societies. Bot. Gaz., Vol. XXXI., pp. 73-108, 145-182. 

 Daecke, Erich. 



'05. Notes on Prionapteryx nel)ulifera Steph. Ent. News, Vol. 

 XVI., pp. 12-14, PI. il., 1 lig. in text. 

 Dodge, G. M. 



'78. Variations in the Wing Expanse of Pezotettix. Can. Ent., 

 A^ol. X., pp. 103-105. 

 Garman, H. 



'92. A Synopsis of the Reptiles and Amphibians of Illinois. 

 Bull. 111. State Lab. Nat. Hist., Vol. III., pp. 215-388, PL 

 IX-XV. 

 Gillette, Clarence P. 



'04. Annotated List of Colorado Ortlioptera. Part I. Colo. 

 Exper. Station Bull., 94 (Tech. Ser., No. 6). pp. 17-56. 

 Gleason, H. A. 



'04. A New Sunflower from Illinois. Ohio Nat., Vol. V., 

 p. 214. 

 Graebner, P. 



'01. Die Heide Norddeutschlands. 

 Hancock, J. L. 



'06. On the Orthopteran Genus Ageneotettix, with a Descrip- 

 tion of a New Species from Illinois. Ent. News, Vol. XVII., 

 pp. 253-256. 

 Hart, C. A. 



'06. Notes of a Winter Trip in Texas, with an Annotated List 

 of the Orthoptera. Ent. News, Vol. XVII., pp. 154-160. 

 Hoppner, Hans. 



'01. Die Bienenfauna der Diinen und Weserabhiinge zwischen 

 Uesen und Baden. Abhandl. Nat. Ver. Bremen, Bd. 

 XV., pp. 231-255. Abstr. in Illustr. Zeitsch. f. Ent., Bd. 

 VI., p. 157. 

 King, F. H. 



'04. Some Results of Investigations in Soil Management. 

 Yearbook, U. S. Dept. Agr.^ 1903, pp. 159-174. 



