STUDIES ON THE OXIDATION AND REDUCTION OF IMMUNOLOGICAL SUBSTANCES : VII. THE DIFFERENTIATION OF TETANOLYSIN AND TETANOSPASMIN.

Tetanolysin and tetanospasmin possess in common the immunological properties of the group of "antitoxinogens." Both of them are contained in undeteriorated culture fluids of the tetanus bacillus, but each of them represents a distinct and separate antigenic substance. Experimental data illustrating points of difference in their properties are presented in this paper.