1. Action of steroids on H⁺ and NH ₄ ⁺ excretion in the toad urinary bladder

   • Loy W. Frazier
   • N. Y. Zachariah

   OriginalPaper Pages: 297 - 308

2. Ca²⁺ translocation in Ehrlich ascites tumor cells

   • R. Hinnen
   • H. Miyamoto
   • E. Racker

   OriginalPaper Pages: 309 - 324

3. Zinc-dependent action potentials in giant neurons of the snail,Euhadra quaestia

   • Kazuyoshi Kawa

   OriginalPaper Pages: 325 - 344

4. Intracellular ionic activities and transmembrane electrochemical potential differences in gallbladder epithelium

   • Luis Reuss
   • Steven A. Weinman

   OriginalPaper Pages: 345 - 362

5. On the cross-reactivity of amiloride and 2,4,6 Triaminopyrimidine (TAP) for the cellular entry and tight junctional cation permeation pathways in epithelia

   • R. S. Balaban
   • L. J. Mandel
   • D. J. Benos

   OriginalPaper Pages: 363 - 390