I. Dynorphin-containing neurons (J.H. Fallon and P. Ciofi). II. Growth hormone releasing hormone (P.E. Sawchenko and L.W. Swanson). III. Angiotensin (R W. Lind and D. Ganten). IV. Pancreatic polypeptide, neuropeptide Y and peptide YY in central neurons (M.E. de Quidt, H. Kiyama and P.C. Emson). Neuropeptide receptors. V. Opioid peptide receptors (B. Adler, R.R. Goodman and G.W. Pasternak). VI. Tachykinin receptors in the central nervous system (T.L. O'Donohue, C.J. Helke, C.W. Shults, S.H. Buck and E. Burcher). VII. Neurotensin receptors (G.R. Uhl). VIII. Cholecystokinin receptors (T.H. Moran and P.R. McHugh). IX. TRH receptors (D.R. Burt and N.A. Sharif). X. Immunocytochemistry of neuronal phosphoproteins in dopaminoceptive brain regions (C.C. Ouimet and P. Greengard). Subject index.