BLOOD GROUPS IN ANTHROPOID APES AND BABOONS.

Tests on chimpanzees, orangutans, gibbons, baboons, and a gorilla, with blood grouping reagents prepared for human red cells, have disclosed patterns of reactions characteristic of each primate species. Determinations have been made of A-B-O groups and subgroups, M-N types, Rh-Hr types, secretor status, and Lewis types. Immunization experiments with ape and monkey blood are in progress.