62 



JAMES M. SHERMAN 



Results with Monas sp. 



In the case of Monas sp. very interesting results were ob- 

 tained. This organism, as has been shown, is active in soil. 

 The findings reveal a very strikingly harmful effect upon bac- 

 teria in soil extract while in soil this action did not appear to take 

 place. The reason for this is not clear, but it has been noted 

 within recent years that the behavior of micro-organisms appar- 

 ently differs, in many cases, in soil and in solution. 



TABLE XVIII 

 Effect of Monas (sp.?) upon the number of bacteria in soil extract 



NUMBER OF BACTERIA PER CUBIC CKNTIMBTEB 



2 days 



5 days 



8 days 



Control 



Control 



Monas (sp.?) 

 Monas (sp.?) 



100,000,000 



128,000,000 



200,000,000 



46,000,000 



140,000,000 



142,000,000 



6,500,000 



6,800,000 



144,000,000 



100,000,000 



5,500,000 



6,000,000 



TABLE XIX 

 Effect of Monas (sp.?) tipon the number of bacteria in soil 

 Test 1 



Test 2 



440,000,000 

 360,000,000 

 460,000,000 



420,000,000 



380,000,000 

 240,000,000 

 260,000,000 



293,300,000 



Tests 



240,000,000 

 170,000,000 

 160,000,000 

 245,000,000 



204,000,000 



240,000,000 

 165,000,000 

 220,000,000 

 260,000,000 



221,000,000 



