G. Chieffi, G.B. Chieffi Baccari, L. Di Matteo, M. d'Istria, S. Minucci, and B. Varriale, Cell Biology of the Harderian Gland.J.-L. Guan and H.-C. Chen, Signal Transduction in Cell-Matrix Interactions.N.A. Belyavskaya, Calcium and Graviperception in Plants: Inhibitor Analysis.E.M. Plisetskaya and T.P. Mommsen, Glucagon and Glucagon-like Peptides in Fishes.C.F. Beck and M.A. Haring, Gametic Differentiation of Chlamydomonas.M. Schneider, P. Schweizer, P. Meuwly, and J.P. Metraux, Systemic Acquired Resistance in Plants.Chapter References.Index.