652 Marine Microbiology 



place on the bottom, in part because of the settUng of the larger 

 portion of the organics, but primarily because of the far greater 

 efficienc)' of mineralization processes on the bottom. It was also 

 found that nitrification commenced immediately in the receiving 

 water, resulting in a 28 per cent decrease in NHa-N concentra- 

 tions during the first four hours. 



ACKNOWLEDGMENTS 



I am indebted to Dr. S. C. Rittenberg, University of Southern 

 California, for suggesting this study, and for his assistance in 

 its pursuit. I am also grateful to Mr. W. F. Garber, City of Los 

 Angeles, for his support during the original investigations of 

 Santa Monica Bay, 



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