Cytogenetic studies are carried out in twelve cases of intersex swine. Eleven cases have a normal female karyotype (38, XX), irrespective of their genital organs showing various abnormalities. One case has an abnormal chromosome set (37, XX) characterized by an autosomal translocation. The sex-chromosomes of all cases are of a normal female type with the XX mechanism. The sex of all cases studied is genetically female.
Tetrasaccharides, having blood group A and B activities, were obtained from A and B substances, respectively. When the A-active tetrasaccharide was acted on by α-N-acetylgalactosaminidase from hog liver and the B-active tetrasaccharide by α-galactosidase from Cl. sprogenes Maebashi, N-acetylgalactosamine and galactose were liberated from these sugars, respectively, and they turned into trisaccharides having H activity.