WE have already described a haemagglutination reaction between erythrocytes treated with cold tannic acid and guinea-pig serum (diluted to about 1 : 100). We have also observed a marked increase in ...
VOLUNTEERS were injected with conjugates of 2,4-dinitro-phenyl–human serum albumin (DNP–HSA) 1. Sixty per cent of subjects developed rising titres of agglutinating activity to DNP coupled red cells ...