1. Two components of extracellularly-recorded photoreceptor potentials in the cephalopod retina: Differential effects of Na⁺, K⁺ and Ca²⁺

   • R. B. Clark
   • G. Duncan

   OriginalPaper Pages: 263 - 300

2. Proteolysis and flash photolysis of bacteriorhodopsin in purple membrane fragments

   • K. Rosenheck
   • M. Brith-Lindner
   • S. R. Caplan

   OriginalPaper Pages: 301 - 313

3. Transport of lipids through water as exchange mechanism between two liposome populations

   • G. Duckwitz-Peterlein
   • H. Moraal

   OriginalPaper Pages: 315 - 326

4. Stacking interaction of nucleobases: NMR investigations

   • H. Sapper
   • W. Lohmann

   OriginalPaper Pages: 327 - 335