BIBLIOGRAPHY. 493 



Sebnandeb, R. 1894. Studier ofver den Gotlandska Vegetationens Utvecklingshistoria. Bot. 



Cent. b. 6 : 164 : 1896. 

 . 1895. Ueber den Bau einiger in der Provinz Upland gelegenen Torfmoore. Bot. Cent. 



63:46:1895. 

 . 1898. Studien fiber die Vegetation der Mittelskandinavischen Hochgebirgsgegenden. 



1. Ueber Tundraformationen in den sohwedisohen Hochgebirgsgegenden. 



Vet. Akad. Forh. 1898 : 325. Bot. Cent. b. 8 : 442 : 1898. 

 . 1899. II. Hoohgebirgapflamien in der Nadelwald Region. Bih. Sven. Vet. Handl. 24 : 3 : 



1899. Bot. Cent. 81 : 308 : 1900. 



. 1901. Die skandinaviska vegetationens spridningsbiologi. Bot. Cent. 38 : 380. 



. 1901. Omdebuskartadelafvameshapterer. Bot. Not. 1901. Bot. Cent. 38 : 293 : 1901. 



. 1908. On the evidence of postglacial changes of climate furnished by the peat mosses of 



northern Europe. Geol. Poren. Forh. 30 : 465. Bot. Cent. Ill : 611 : 1909. 



. 1908. Stipa pennata i Vastergotland. Sv. Bot. Tid. 2 : 49. Bot. Cent. Ill : 151 : 1909. 



. 1908. Ueber den Mensohen der Ancylus-Zeit vind die Kieferperiode im stidhchen Skandi- 



navien. Geol. Foren. Forh. 30 : 388. Bot. Cent. Ill : 313 : 1909. 

 . 1910. Ausstellung zur Beleuchtung der Entwickelungsgeschichte der schwedischen Torf- 

 moore. Compt. Rend. XI Cong. Geol. Inter. 203. 

 . 1910. De skanodaniska torfmosarnas stratigrafi. Geol. Foren. Forh. 31 : 423. Bot. 



Cent. 114:189:1910. 

 . 1910. Vegetation und Entwickelungsgeschichte des Sees Hederwicken. Bot. Tids. 4 : 58. 



Bot. Cent. 114 : 319 : 1910. 

 . 1910. Excursion B 3, Orsmossen. Compt. Rend. XI Cong. Geol. Inter. 1292. Bot. Cent. 



117:163:1911. 

 . 1911. Ueber Zeitbestimmungen in den scano-danischen Torfmooren. Geol. Foren. Forh. 



33 : 111. Bot. Cent. 117 : 164; 1911. 



. 1912. Studier ofver lavaines biologi I. Nitrofila lafvar. Sv. Bot. Tids. 6 : 803. 



, and K. Kibllmabk. Eine Torfmooruntersuchung aus dem nordUchen Nerike. Bull. 



Geol. Inst. Upsala 1895. Bot. Cent. b. 6 : 517 : 1896. 

 Sewabd, A. C. 1898. FossU plants, I, 1898; II, 1910. 

 Shalee, N. S. 1886. The swamps of the United States. Science 7 : 232. 

 . 1890. General account of the freshwater morasses of the United States, with a description 



of the Dismal Swamp District of Virginia and North Carolina. U.S. Geol. 



Surv. 10:261. 

 Shantz, H. L. 1906. A study of the vegetation of the Mesa Region east of Pikes Peak; the 



Bouteloua Formation. Bot. Gaz. 42 : 16. 

 . 1907. Biological study of the lakes of the Pikes Peak Region — Preliminary report. 



Trans. Am. Mic. Soc. 27 : 75. 

 . 1911. Natural vegetation as an indicator of the capabilities of land for crop production 



in the Great Plains Area. Bur. PI. Ind. BuU. 201. 

 Shaw, C. H. 1902. The development of vegetation in the morainal depressions of the vicinity of 



Woods Hole. Bot. Gaz. 33 : 437. 

 Shblfoed, v. E. 1912. Ecological succession. IV. Vegetation and the control of land animal 



communities. Biol. Bull. 23 : 59. 



1912. V. Aspects of physiological classification. lb. : 331. 

 1914. A comparison of the responses of sessile and motile plants and animals. Am. Nat. 



43:641. 

 1914. Animal communities in temperate America. 

 Shebff, E. E. 1912. The vegetation of Skokie Marsh, with reference to subterranean organs and 

 their inter-relationship. Bot. Gaz. 53 : 415. 



1913. Evaporation conditions in Skokie Marsh. Plant World 16 : 154. Joiir. Ecol. 



1: 195: 1913. 

 Shimee, B. 1903. Living plants as geological factors. Trans. la. Acad. Sci. 10 : 41. 



1908. The genesis of loess: a problem in plant ecology. Proc. la. Acad. Sci. 15:57. 



Bot. Cent. 113:655:1910. 

 1911. The prairies. Bull. Lab. Nat. Hist. Univ. la. 6 : 169. 

 Shkeve, F. 1909. Establishment behavior of the Palo Verde. Plant World 12 : 289. 



1910. The ecological plant geography of Maryland: Coastal zone, Eastern Shore Dis- 

 trict. Plant Life of Maryland 101. 



1910. The rate of establishment of the Giant Cactus. Plant World 13 : 235. Bot. Cent. 

 117:252:1911. 



1911. The influence of low temperatures on the distribution of the giant cactus. Plant 

 Worid 14 : 136. 



1914. The r61e of winter temperatures in determining the distribution of plants. Am. 

 Jour. Bot. 1 : 194. 



Shull, G. H. 1914. The longevity of submerged seeds. Plant World 17 : 329. 



