Speaking in terms of general principles, we have the following indications for the use of the quarantine in abdominal surgery: 1.1. Infected organs which tend to produce a peritonitis by contact or discharge but which organs are not to be entirely removed.2.2. Intra-abdominal abscess so located that the wall is exposed to the intra-abdominal viscera and where the discharge must be conducted across the free peritoneal cavity after drainage is established.3.3. An open viscus which because of the presence of infection or for other reason it is impractical or undesirable to close at the time.4.4. Large denuded bleeding or infected areas which it is impossible to cover with peritoneum.5.5. Extensive recurrent adhesions which disturb the function of the abdominal organs.6.6. Drainage of retroperitoneal or extraperitoneal areas which are so located that the drainage material must pass through the peritoneal cavity.7.7. Areas which are set apart for continued or subsequent therapy such as the cautery or radium.