Ruttner, Franz. 1953. Fundamentals of Limnology. Trans, Frey, D. G. and F. E. J. Fry. Toronto. 

 The University Press. 



Schiller, J. 1930. Kulturversuche uber den Temperature influss auf die Producttivitat des Wassers. 

 Zeltschr. f. Bot . 23:132-149. 



Schumacher, G.J, A qualitaUve and quantitative study of the plankton algae in southwestern Georgia. 

 Amer. Midi, Nat. 56:88-115. 



Smith, G. M. 1920. Phytoplankton of the inland lakes of Wisconsin. Parts I, II. Wis. Geol . and 

 Nat. Hist. Surv. Bui. 57. 



Str;5m, K. M. 1924. Studies in the ecology and geographical distribution of fresh-water algae and 

 plankton. Rev. Algol . 1:127-155 . 



Symoens, J. J. 1951. Esquisse d'un systeme des associations algales d'eau douce. Verh . Int. Ver. 

 Theoret. Ang , Lim. 11:395-408. 



Tiffany, L, H. 1936. Willie's collection of Puerto Rican fresh-water algae. Brittonia 2:165-176, 



Tiffany, L. H. 1951. Ecology of fresh-water algae . In Smith, G. M., Ed. 1951. Manual of Phycology . 

 Chronica Botanica Co., Waltham, Mass. 



Tiffany, L. H. 1957. The Oedogoniaceae III. Bot. Rev. 23:47-63 , 



Tllden, J. E. 1935. The algae and their life relations. Univ. Min. Press. 



Transeau, E. N. 1916. The periodicity of fresh-water algae. Amer. J, Bot, 3:121-133. 



Wade, W. E, 1949, Some notes on the algal ecology of a Michigan lake. Hydrobiologica 2:109-117. 



Welch, P. S. 1947. Eutrophication of lakes by domestic drainage. Ecol . 28:383-395. 



Welch, P. S. 1952. Limnology. McGraw-Hill. 



West, G. S. 1904. A treatise on the British fresh-water algae. Cambridge. 



West, G. S. 1909. The algae of the Yan Yean Reservoir Victoria . J. Lin. Soc . of London 39:1-88 . 



West, W. and G. S. West. 1912. Periodicity of the phytoplankton of some British lakes. J. Linn. Soc, 

 Bot, 40:395 , 



Whitford, L. A. 1943. The fresh-water algae of North Carolina. J. Elisha Mitch. Sci . Soc. 59:131-170. 



Whitford, L. A. 1956. The communities of algae in the springs and spring streams of Florida. Ecol. 

 37:433-442, 



Wien, Janet D. 1959. The study of the algae of irrigation waters. 2nd. annual progress report, 

 (mimeographed) Arizona State University, Tempe . 



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