1. In addition, soil organic matter, alkali- hydrolyzable -N, available potassium and available phosphorus were main factors of energy and nutrition for growth and activities of microorganism.

2. Exceptions did exist, especially with alkali-hydrolyzable N, readily available P, readily available K, and micro-elements, which sometimes altered inconsistently with the above-said patterns.

3. Benzidine, monoacetylBenzidine, diacetylBenzidine, 4-aminobiphenyk, and alkaline hydrolyzable conjugates of Benzidine and 4-aminobiphenyl in Syrian golden hamsters.(6) The dye was administered to the animals in a single dose by stomach intubation