Thirty adult healthy male mice were divided randomly into five groups of Ⅰ?Ⅱ?Ⅲ?ⅣandⅤ,with Ⅰ?Ⅱ?Ⅲ groups drunk each day for five days by the solution of ammonoum molysdate,dosage 365.0mg/kg body weight (1/2LD 50 ) ,176.5 mg/kg(1/4 LD 50 )and 94.5 mg/kg(1/8 LD 50 ) respectively,and Ⅳgroup (the positive contrast) injected 3 mg/kg body weight of colchicum plain into abdomimal cavityes one and a half to six hours before putting them to death , and Ⅴgroup the negative contrast to study the chang of th...