PLATE 3 



Representative plates from i to 400,000 bacterial dilution of acid black peaty sand, 

 cropped and held under optimum moisture conditions: 



A.— Aerobic plates, untreated. 



B. — ^Aerobic plates, treated with 2 tons of calcium carbonate. 



C. — ^Aerobic plates, treated with complete fertilizer. 



D. — ^Aerobic plates, treated with complete fertilizer and 2 tons of calcium carbonate. 



E. — ^Aerobic plates, treated with complete fertilizer and 6 tons of calcium carbonate. 



F. — ^Anaerobic plates, treated with complete fertilizer. 



G. — ^Anaerobic plates, treated with complete fertilizer and 2 tons of calcium car- 

 bonate. 



H. — Anaerobic plates, treated with complete fertilizer and 6 tons of calcium car- 

 bonate. 



