95 



8 Colonics from L and B agar to 



Na. asp. agar 



Soil ext. (unheated) v 



Soil ext. (autoclaved) 



Agar alone 



Agar and soil 



5 Days. 



14 Days. 



{I- 



7g. 



1 — 



feg. 



5 g. 



12- 



3 — 



}5 g. 



6g. 



13- 



2 — 



(4g. 



6g. 



U- 



2 — 



}4g. 



4g. 



14- 



4 — 



8 Colonies from Na. asp. agar to 



L and B agar 



Soil ext. (unheated) . 



Soil ext. (autoclaved). 

 Agar alone 



Agar and soil. 



5 Days. 



14 Days. 



S g. 



8g. 



j7g. 



6g. 



Il- 



2 — 



8g. 



S g. 



Sg. 



8 g. 



fSg. 



6g. 



1 



2 — 



Summary 5 Days. 



8 transfers to L and B agar 8 made growth. 



8 transfers to Na. asp. agar 7 made growth. 



16 transfers to Soil ext. (unheated) 13 made growth. 



16 transfers to Soil ext. (autoclaved) 13 made growth. 



16 transfers to Agar alone 12 made growth. 



i 



16 transfers to Agar and soil 12 made growth. 



Summary 1J/. Days. 



8 transfers to L and B agar 8 made growth. 



8 transfers to Na. asp. agar 7 made growth. 



16 transfers to Soil ext. (unheated) 11 made growth. 



16 transfers to Soil ext. (autoclaved) 14 made growth. 



16 transfers to Agar alone 14 made growth. 



16 transfers to Agar and soil 10 made growth. 



