1. Precipitation membranes: III. Reversible changes of membrane properties induced by alterations in ionic concentrations

   • Paul Hirsch-Ayalon

   OriginalPaper Pages: 1 - 6

2. Precipitation membrane effects in biologic membranes: The role of calcium

   • A. Ayalon
   • G. Bähr
   • P. Hirsch-Ayalon

   OriginalPaper Pages: 7 - 14

3. Effects of external sodium and cell membrane potential on intracellular chloride activity in gallbladder epithelium

   • Luis Reuss
   • Timothy P. Grady

   OriginalPaper Pages: 15 - 31

4. Interactions of Folch-Lees proteolipid apoprotein with planar lipid bilayers

   • H. P. Ting-Beall
   • Marjorie B. Lees
   • J. David Robertson

   OriginalPaper Pages: 33 - 46

5. Partial purification of the sugar carrier of intestinal brush border membranes. Enrichment of the phlorizin-binding component by selective extractions

   • Amira Klip
   • Sergio Grinstein
   • Giorgio Semenza

   OriginalPaper Pages: 47 - 73

6. Development of electrical coupling and action potential synchrony between paired aggregates of embryonic heart cells

   • Dirk L. Ypey
   • David E. Clapham
   • Robert L. DeHaan

   OriginalPaper Pages: 75 - 96

7. Microelectrode artifacts and frog skin potentials

   • B. Lindemann

   Letters to the Editors Pages: 97 - 100