[Forssman's heterogenetic antigen and its demonstration in sheep muscle tissue].

Preparation of Forssman's antiserum by means of hyperimmunization of rabbits with multiple injection of guinea-pig kidney emulsion i.v. in the course of 36 days is presented in the paper. The titre of the antiserum of rabbits utilized varied in the range between 1:1600 and 1:3200, using the antiserum to prove Forssman's antigen. On the basis of the Sachs-Georgi reaction, the presence of the Forssman's heterogenous antigen was recorded in all samples of meat collected from different parts of the slaughtered ewes. The experiments resulted, unlike the statement of Tanaka, in proving the incidence of the Forssman's antigen in many parts of the muscle tissue, not only in the connective tissue.