1. Primary adult lactose intolerance and the milking habit: A problem in biologic and cultural interrelations

   • Frederick J. Simoons

   OriginalPaper Pages: 695 - 710

2. Hydatid cyst disease

   • Frederick F. Whitcomb Jr
   • Navin K. Parikh
   • Cornelius E. Sedgwick

   OriginalPaper Pages: 711 - 718

3. Gastric and duodenal motility, food intake and hunger measured in man during a 24-hr period

   • Peter B. Bloom
   • Ross D. L. Filion
   • Eliot Stellar

   OriginalPaper Pages: 719 - 725

4. Balantidium colitis

   • Leon Baskerville
   • Yusufuddin Ahmed
   • Subash Ramchand

   Case Reports Pages: 727 - 731

5. Hepatic coma associated with methoxyflurane anesthesia

   • Seymour Katz

   Case Reports Pages: 733 - 739

6. Infiltrative diseases of the small bowel and malabsorption

   • Joel D. Levinson
   • Joseph B. Kirsner

   Progress Report Pages: 741 - 766

7. Pancreatic carcinoma

   • David W. Watson

   Clinical Seminar Pages: 767 - 773

8. Hill-climbing and medical care

   • John T. Farrar

   Editorial Pages: 775 - 778

9. Letters to the editor

   • Johnson L. Thistle

   Letter Pages: 779 - 780

10. Letters to the editor

    • Henri Sarles

    Letter Pages: 780 - 780

11. Letters to the editor

    • O. Roger Hollan

    Letter Pages: 781 - 781

12. Letters to the editor

    • Peter R. Holt

    Letter Pages: 781 - 782

13. Letters to the editor

    • Frederick Shuster

    Letter Pages: 782 - 782