Bibliography 765 



Uden, N. van and Castelo Branco, R.: Metschnikowiella zobellii n. sp. 

 and Metschnikowiella krisii n. sp. two yeasts from the Pacific Ocean with 

 experimental pathogenicity for Daphna magna. J. Gen Microbiol. 26:141- 

 148, 1961. 



Uden, N. van and Farinha, M.: On the significance of temperature rela- 

 tions and vitamin deficiency patterns in the determination of yeast species. 

 Poring., Acta. Biol (B) 6:161, 1958. 



Uden, N. van., Carmo Sousa, L. and Farinha, M.: On the intestinal yeast 

 flora of horses, sheep, goats, and swine. /. Gen. Microbiol, 19:435, 1958. 



Uklonski, a. S.: Paragenesis des Schwefels und des Erdols. Veroffent- 

 lichungen der Usbekischen Filiale der Akad. Nauk SSSR, Taschkent, 1940. 



Updegraff, D. M. and Bovey, F. A.: Reduction of organic hydroperoxides 

 by microorganisms and animal tissues. Nature, i -SI: 890-893, 1958. 



Updegraff, D. M. and Wren, Gloria: The release of oil from petroleum- 

 bearing materials by sulfate-reducing bacteria. Appl. Microbiol, 2:309- 

 322, 1954. 



Utermohl, H. : Quantitative methoden zur Untersuchung des Nannoplank- 

 tons. Handb. biochem. arbeitsmethoden, 9:1879-1934, 1931. 



Valik.\ngas, I.: Planktologische Untersuchungen im Hafengebiet von 

 Helsingfors I. t)ber das Plankton insbesondere das Netz-zooplankton des 

 Sommerhalbjahres. Acta zool fcnn., 1:1-298, 1926. 



Vallentyne, J. R.: The molecular nature of organic matter in lakes and 

 oceans, with lesser reference to sewage and terrestrial soils. /. Fish. Res. 

 Bd. Canada, 14:33-82, 1957. 



ViSHNiAC, H. S. and Riley, G. A.: Cobalamin and thiamine in Long Island 

 Sound: patterns of distribution and ecological significance. Limnol and 

 Oceanogr., 6:36-41, 1961. 



ViSHNiAC, W., and Santer, M.: The Thiobacilli. Bacteriol Rev., 21:195- 

 213, 1957. 



Vodjanitsky, v. a.: On the Problem of biological productivity of waters 

 and in particular of the Black Sea one. Works of the Sevastopol Biol. 

 St., 8:347-433, 1954. 



VoLKMANN, C. and Oppenheimer, G. H.: The microbial decomposition 

 of organic matter in surface sediments. Pitb. hhst. Mar. Sci. (in press) 

 1962. 



VoROSHiLOVA, A. A. and Dianova, E. V.: The plankton importance in re- 

 production of bacteria in the isolated samples of sea water, m. Micro- 

 biology, 6:741-744, 1937. 



Wade, H. E. and Morgan, D. M.: Fractionation of phosphates by paper 

 ionophoresis and chromatography. Biochem. J., 60:264, 1955. 



Waksman, S. A.: Principles of Soil Microbiology. Williams & Wilkins, Bal- 

 timore, 1927. 



