PLATE 8 



Representative plates from i to 40,000 bacterial dilution of acid black peaty sand 

 kept at different moisture contents: 



A,.— Aerobic plates from soil kept one-fourth saturated. 



H,. — Anaerobic plates from soil kept one-fourth saturated. 



C,.— Aerobic plates of carbon-dioxid-surviving organisms from soil kept one-fourth 

 saturated. 



A2. — Aerobic plates from soil kept one-half satiirated. 



Ho. — Anaerobic plates from soil kept one-half saturated. 



C2. — Aerobic plates of carbon-dioxid-siu-viving organisms from soil kept one-half 

 saturated. 



A3. — Aerobic plates from soil kept fully saturated. 



H3. — ^Anaerobic plates from soil kept fully saturated. 



Cg. —Aerobic plates of carbon-dioxid-surviving organisms from soil kept fully 

 saturated. 



