STUDIES ON SOIL PROTOZOA 



TABLE XX 



63 



Effect of seven different strains of Monas (sp.?) upon the numbers of bacteria in 



soil 



To verify the results of Table XIX, another test was made 

 in which seven strains of the organism, isolated from as many 

 different soils, were employed. A comparison was then made 

 with five control pots which were free of protozoa. The results 

 from this test (Table XX) agree entirely with the data given in 

 the preceding tables. 



Results with Flagellate A 



This organism, Hke Dimorpha radiata, does not appear to be 

 antagonistic to the soil bacteria as is shown by the tests both in 

 soil and in soil extract. 



TABLE XXI 

 Effect of Flagellate A upon the number of bacteria in soil extract 



