DESERT VEGETATION OF AMERICA 161 



LITERATURE USED 



Briggs, Lyman J. and Belz, J. O. : Dry farming in relation to rainfall and evapo- 

 ration (U. S. Dept. of Agric, Bur. of PI. Ind. Bull. No. 188) Washing- 

 ton, 1911. 



Coulter, John M. and Nelson, Aven: New manual of botany of the central 

 Rocky Mountains. Now York, Cincinnati, Chicago, 1909. 



( Iarrett, A. O. : Spring flora of the Wasatch region. Lancaster, Pa., 1912. 



Kearney, T. H., Briggs, L. J., Shaxtz, H. L., McLane, J. W. and Piemeisel, 

 R. J. : Indicator significance of vegetation in Tooele Valley, Utah. 

 (Journ. agric. research I No. 5) Washington, 1914. 



Parish, S. B.: A catalogue of plants collected in the Sal ton Sink. (Publ. 193 

 Carnegie Inst, of Washington) Washington, 1913. 



Paulsen, Ove: Studies on the vegetation of the Transcaspian lowlands (the 

 second Danish Pamir exp. conducted by O. Olufsen) Copenhagen, 

 1912. 



Raunkiaer, C. : Types biologiques pour la geographie botanique (Bull. Ac. 

 Roy. Sc. Danemark 1905) Copenhague. 



Raunkiaer, C. : Livsformernes Statistik som Grundlag for biologisk Plante- 

 geografi (Botanisk Tidsskrift 29). Kobenhavn, 1908. Translated in 

 Beih. Bot. Centralbl. 87. 1910. ("Statistik der Lebensformen als 

 Grundlage fur die biologische Pflanzengeographie"). 



Raunkiaer, C: Formationsundersogelse og Formationsstatistik (Botanisk 

 Tidsskrift 30). Kobenhavn, 1909. Abstracted in English in Bot. 

 Centralblatt, Vol. 113, p. 662. 



Shantz, H. L. : Natural vegetation as an indicator of the capabilities of land 

 for crop production in the great plains area. (U. S. Dept. of Agric, 

 Bur. of PI. Industry, Bull. No. 201) Washington, 1911. 



Spalding, Volney M. : Distribution and movements of desert plants (Publ. 

 113 Carnegie Inst, of Washington) Washington, 1909. 



For the study of Raunkiaer's methods the following papers might be con- 

 sulted: 



Smith, W. G. : Raunkiaer's Life-forms and statistical methods. (Journal of 



Ecology, 1), 1913. 

 de Forest, H.: Recent ecological investigations. (Proceed. Soc. American 



Foresters), 1914. 



