1. Symposium: The Biology Of The Colonic Mucosa

   • Thomas P. Almy

   EditorialNotes Pages: 831 - 832

2. Renewal of the colonic epithelium of the rat

   • B. Messier

   OriginalPaper Pages: 833 - 835

3. Normal human rectal mucosa and its mechanism of repair

   • George Lumb

   OriginalPaper Pages: 836 - 840

4. The germ-free animal

   • Helmut A. Gordon

   OriginalPaper Pages: 841 - 867

5. Experimental hypersensitivity reactions in the colon and the problem of ulcerative colitis

   • Joseph B. Kirsner

   OriginalPaper Pages: 868 - 879

6. The effect of histamine on pepsin secretion

   • D. W. Piper

   OriginalPaper Pages: 880 - 888

7. Ulcer of the stomach in Hodgkin's disease

   • S. Germanos
   • W. J. Grace
   • A. Rottino

   Case Reports Pages: 889 - 898

8. Leucine aminopeptidase; its nonspecificity as a test for carcinoma of the pancreas

   • Robert M. René
   • Sherman M. Mellinkoff

   Case Reports Pages: 899 - 904

9. Books

   • Sherman M. Mellinkoff
   • Archie H. Baggenstoss
   • E. Clinton Texter Jr.

   BookReview Pages: 905 - 910