Contents (Volume 7B). List of Contributors. Preface (E.E. Bittar and N. Bittar). Mechano-Sensitive Channels (C.E. Morris). Patch Clamping Methods and Analysis of Ion Channels (N.B. Standen, N.W. Davies, and P.R. Stanfield). Functional Expression of Ionic Channels and Membrane Transporters in Xenopus Oocytes (S.M. Jarvis). The Plasma Membrane as A Transducer and Amplifier (D.A. Severson and M.D. Hollenberg). G-Protein Couples Receptors and Hormone Secretion (G.J. Law, M. Rupnik, R. Zorec, P.M. Lledo, and W.T. Mason). The Role of ras in Signal Transduction (A. Hall). The Polyphosphoinositide Signaling System (A.A. Abdel-Latif). Other Lipids as Second Messengers (Y.A. Hannun). The Role of Intracellular Calcium as a Regulatory System (J.R. Dedman and M.A. Kaetzel). The Role of Guanylyl Cyclases as Signal Transducing Enzymes (D. Koesling). Stimulus-Response Coupling in Secretory Cells (O.H. Petersen). Cell INteractions with Extracellular Matrices (L.A. Culp, K.L. O'Connor, and S.D. Walker). Intercellular Communication (W.H. Evans). Index.