Significance of Microorganisms of Upper Sediment Layer 719 



4. Fedosov, M. v.: Details of hydrochemistry of the North Caspian Sea 



and the Volga delta (Russian). Papers of the Cent. Inst. Marine Fish 

 & Oceanography (VNIRO), i: 136-143, 1952. 



5. Fedosov, M. V.: Intensity of sedimentation in the Azov Sea. Papers of 



the Acad, of Sci. of the USSR. 34:551-555, 1952. 



6. GoRSHKOVA, T. I.: Organic substance of the Azov Sea and Taganrog 



Bay sediments (Russian). Papers of the Cent. hut. of Marine Fish. 

 6- Oceanography, 31:123-145, 1955. 



7. IsACHENKO, B. L.: Microbiological analysis of the Azov and Black Sea 



sediments (Russian). Proceeding of the State Hydrological Inst., 10: 

 377-384, 1933. 



8. KuzNETSOV, S. I.: Significance of microorganisms in the rotation of sub- 



stance in lakes. Acad. Sci. of tlie USSR, 1952. 



9. OsNiTSKAYA, L. K. : Distribution of putrefactive, desulphurating, meth- 



ane-oxidizing and hydrogen-oxidizing bacteria in the North Caspian 

 sediments. Microbiology, 22:399-408, 1953. 



10. Skopintsev, B. a.: On decomposition rate of organic substance of de- 



funct plankton. (Russian). Papers of the Acad, of Sci. of the USSR, 

 8:1797-1800, 1947. 



11. Skopintsev, B. A.: On regeneration rates of biogen elements in bacterial 



decomposition of plankton organisms (Russian). Microbiology, 7: 

 755-766, 1938. 



12. Skopintsev, B. A. and Bruk, E. S.: Investigation into the regeneration 



of nitrogen and phosphorus compounds in the process of the decom- 

 position of defunct phytoplankton (Russian). Papers of the Acad, of 

 Sci. or the USSR, 26:814, 1940. 



13. Sorokix, J. I.: On bacterial chemosynthesis in silt sediments (Russian). 



Microbiology, 24:393-400, 1955.' 



14. Speranskaya, T. A.: Data from the investigation from organic sub- 



stances in upper silt layers of lakes. Papers Limn. Stanzii w Kossine, 

 V. 20., 1935. 



15. Zhukova, a. I.: Biomass of microorganisms of the North Caspian sedi- 



ments (Russian). Microbiology, 24:321-324, 1955. 



16. Zhukova, A. I.: Distribution and biomass of microganisms in the Azov 



Sea sediments (Russian). Microbiology, 28:581-585, 1959. 



