204 Marine Microbiology 



6. Genovese, S.: Osservazioni sul ciclo bacterico dello zolfo. Giorn. 



Microbiol, 5:165-175, 1958. 



7. Genovese, S., Pichinoty, F., and Senez, J. C: Sui batteri solfato- 



riduttori del Lago di Faro (Messina). Ric. Scient., 28:131-140, 1958. 



8. Grossman, J. P., and Postgate, J. R.: The estimation of sulphate re- 



ducing bacteria (D. desulphuricans) . Proc. Sac. appl. Bad., i6:l-9, 

 1953. 



9. Senez, J. C., Pichinoty, F., and Geoffray, C.: Role des bacteries sul- 



fato-reductrices dans la pollution des gazometres. Assoc. Tech. Ind. 

 Gaz, France, Af -102: 1-21, 1956. 

 10. Van Niel, C. B.: On the morphology and physiology of the purple 

 and green sulphur bacteria. Arch. f. Mikrobiol., 3:1-112, 1932. 



