Studies on Hemagglutination and Hemolytic Test Part. 4. On the hemolytic test by ricin agglutinated red blood cells and on ricin and antiricinserum

1. The agglutination by ricin occurs more slowly than immune reaction. 2. The agglutinated red cells by ricin are not completely dissolved, in spite of sufficient haemolysine and complement added. 3. The antiricin of rabbit neutralizes the hemagglutination of ricin and toxity to mouse, according to precipitin test by Ramon.