“…Macnab (1948), however, implies that peritonitis is almost invariable in untreated intussusceptions. White and Dennison (1952) state that they have never seen death from peritonitis in an unreduced intussusception, but the bowel may not recover after forcible reduction and the child die of ileus or peritonitis. Ravitch and McCune (1950) have cultured faecal bacteria from the outside of what appeared after reduction to be only severely congested bowel.…”