Chemistry and Physics of Lipids, 57 (1991) 407—408 Elsevier Scientific Publishers Ireland Ltd. Contents Volume 57 (1991) No. 1 J. Wang and A. Pullman (Paris, France), /nteractions and packing of lipids around a helical hydrophobic polypep- tide. The system gramicidin A/glycerylmonooleate E. Baruch, D. Lichtenberg, P. Barak and S. Nir (Tel Aviv and Rehovot, Israel; St. Paul, MN), Calcium binding to bile salts M. Colleau, P. Hervé, P. Fellmann and P.F. Devaux (Paris, France), Transmembrane diffusion of fluorescent phospholipids in human erythrocytes N. Kimura, R. Tsuneta, T. Araiso, T. Koyama, N. Hasegawa, T. Ishii and K. Mukasa (Sapporo, Tochigi and Yokohama, Japan), Fluorescence depolarization to define wobbling motion of oriented molecules in Langmuir-Blodgett films A.R. Venkitaraman, J.E. Baatz, J.A. Whitsett, S.B. Hall and R.H. Notter (Rochester, NY and Cincinatti, OH), Biophysical inhibition of synthetic phospholipid-lung surfactant apoprotein admixtures by plasma proteins K.K. Eklund, J.E. Takkunen and P.K.J. Kinnunen (Helsinki, Finland), Cation-induced aggregation of acidic phospholipid vesicles: the role of fatty acid unsaturation and cholesterol N. Yoshimoto, M. Suzuki and K. Sato (Hiroshima and Amagasaki, Japan), Polymorphic transformation in asclepic acid (cis-w7-octadecenoic acid) R.M. Epand, R.F. Epand, N. Ahmed and R. Chen (Ontario, Canada), Promotion of hexagonal phase forma- tion and lipid mixing by fatty acids with varying degrees of unsaturation B. Egelandsdal, K. Fretheim and O. Harbitz (Lillestr@m and Oslo, Norway), The denaturing action of lysophosphatidylcholine as studied by calorimetric and rheological techniques W.D. Ehringer, D. Belcher, S.R. Wassall and W. Stillwell (Indianapolis, IN), A comparison of a-linolenic acid (18:33) and y-linolenic acid (18:326) in phosphatidylcholine bilayers Short Communications E. De Fabiani, M. Crestani, L. Fasoli and E. Bosisio (Milan, Italy), Effect of natural and structurally modified bile acids on cholesterol metabolizing enzymes in rat liver microsomes. II S.O. Leung and J.T. Ho (Buffalo, NY), Effect of membrane phase transition on long-time calcium-induced fusion of phosphatidylserine vesicles Nos. 2,3 Special Issue: Phospholipid Phase Transitions D. Marsh (Gottingen, F.R.G.), General features of phospholipid phase transitions P. Laggner and M. Kriechbaum (Graz, Austria), Phospholipid phase transitions: kinetics and structural mechanisms M.W. Tate, E.F. Eikenberry, D.C. Turner, E. Shyamsunder and S.M. Gruner (Princeton and Piscataway, NJ), Nonbilayer phases of membrane lipids B. Tenchov (Sofia, Bulgaria), On the reversibility of the phase transitions in lipid-water systems O.G. Mouritsen (Lyngby, Denmark), Theoretical models of phospholipid phase transitions A. Watts and P.J.R. Spooner (Oxford, U.K.), Phospholipid phase transitions as revealed by NMR H.H. Mantsch and R.N. McElhaney (Ottawa and Alberta, Canada), Phospholipid phase transitions in model and biological membranes as studied by infrared spectroscopy 408 R.M. Weis (Amherst, MA), Fluorescence microscopy of phospholipid monolayer phase transitions J.R. Silvius (Quebec, Canada), Thermotropic properties of phospholipid analogues A. Blume (Kaiserslautern, F.R.G.), Phase transitions of polymerizable phospholipids M. Caffrey, D. Moynihan and J. Hogan (Columbus, OH), A database of lipid phase transition temperatures and enthalpy changes G. Ceve (Munich, F.R.G.), /sothermal lipid phase transitions H. Hauser (Ziirich, Switzerland), Effect of inorganic cations on phase transitions H. Tournois and B. de Kruijff (Wageningen and Utrecht, The Netherlands), Polymorphic phospholipid phase transitions as tools to understand peptide-lipid interactions K. Lohner (Graz, Austria), Effects of small organic molecules on phospholipid phase transitions W. Knoll, G. Schmidt, H. R6tzer, T. Henkel, W. Pfeiffer, E. Sackmann, S. Mittler-Neher and J. Spinke (Mainz and Garching, F.R.G.), Lateral order in binary lipid alloys and its coupling to membrane functions P.K.J. Kinnunen (Helsinki, Finland), On the principles of functional ordering in biological membranes... . Subject Index — Volume 57 Author Index — Volume 57 Contents — Volume 57