BIBLIOGRAPHY OF THE MORE IMPORTANT WORKS 

 CONSULTED 



Adams, C. C. 



1909. The ecological succession of birds. An ecological survey of 

 Isle Royal, Lake Superior, pp. 121- 154. (Published by the 

 Mich. State Biol. Surv. as part of the Rep. of the Board of 

 the Geol. Surv. for 1908.) 



Clements, F. E. 



1904. The development and structure of vegetation. Botanical 

 Survey of Nebraska, 7:3-175. 



1905. Research methods in ecology. Lincoln, Nebraska. 



Cowles, H. C. 



1899. The ecological relations of the vegetation on the sand 

 dunes of Lake Michigan. Bot. Gaz. 27:95-117, 167-202, 281- 

 308, 361-391, /. 1-26. 



1901. The physiographic ecology of Chicago and vicinity; a 

 study of the origin, development, and classification of plant 

 societies. Bot. Gaz. 31 : 73-108, 145-182, /. 7-55. 



Drude, Oscar. 



1889. Uber die Prinzipien in der Unterscheidung von Vegeta- 

 tions formationen, erlautert an der centraleuropaischen Flora. 

 Engler's Jahrb., 11 : 21-51. 



Engler, A. 



1902. Die ])flanzengeographische Gliederung Nordamerikas. 

 Notizbl. d. Konigl. Bot. Gart., Appendix IX. (Map showing- 

 floral provinces.) 



Gleason, H. A. 



1910. The vegetation of the inland sand deposits of Illinois. 

 Bull. 111. State Lab. Nat. Hist. 9:23-174, pi. 1-20. 



Goldthwait, J. W. 



1907. The abandoned shore lines of eastern Wisconsin. Bull. 17, 

 Wis. Geol. and Nat. Hist. Surv. 



1908. The records of the extinct lakes. Bull. 7, 111. State Geol. 

 Surv. : 54-68, pi 6, 7, /. ?o-j(5. 



Harper, R. M. 



1906. A phytogeographical sketch of the Altamaha grit region 

 of the coastal plain of Georgia. Ann. N. Y. Acad. Sci. 17: 

 1-415, pi. 1-28, f. 1-17, map. 



