Cold Lymphocytotoxins

Abstract
A chromatographical study was made of eight antisera containing either anti‐HL‐A antibodies, cold lymphocytotoxins, or a mixture of both types of antibodies. The results vary according to the sera obtained. Usually cold lymphocytotoxins are sited in the IgM peak and anti‐HL‐A antibodies in the IgG peak, but there are some sera where anti‐HL‐A reactivity is IgM and cold lymphocytotoxic reactivity is IgG.