The proliferation of Meth-A and AH60C fibrosarcoma inoculated intraperitoneally was suppressed in all mice given Eubacterium lentum (TYH-11) intraperitoneally. The proliferation of MH 134 hepatoma and L1210 lymphoid leukemia was also suppressed in some of the mice receiving this strain. Among forms of solid tumors, this bacterial strain cured some mice with MH134 hepatoma. The survival times of…