Contents of Volume 53 No. 1 W.T. Peake and J.J. Rosowski (U.S.A.) Impedance matching, optimum velocity, and ideal middle ears B. Canlon and L. Brundin (Sweden) Mechanically induced length changes of isolated outer hair cells are metabolically dependent D.P. Phillips and S.A. Sark (Canada.) Separate mechanisms control spike numbers and inter-spike intervals in transient responses of cat auditory cortex neurons P.M. Backoff and B.M. Clopton (U.S.A.) A spectrotemporal analysis of DCN single unit responses to wideband noise in guinea pig S.M. Shapiro (U.S.A.) Binaural effects in brainstem auditory evoked potentials of jaundiced Gunn rats L. Schermuly, G. Topp and R. Klinke (F.R.G.) A previously unknown hair cell epithelium in the pigeon cochlea: The papilla chaotica R.B. Patuzzi and C.L. Bull (Australia) Electrical responses from the chicken basilar papilla J.F. Willott, K. Parham and K.P. Hunter (U.S.A.) Comparison of the auditory sensitivity of neurons in the cochlear nucleus and inferior colliculus of young and aging C57BL/6J and CBA/J mice K.K. Karlsson, M. Ulfendahl, S.M. Khanna and A. Flock (Sweden, U.S.A.) The effects of quinine on the cochlear mechanics in the isolated temporal bone preparation G.M. Gerken, J.M. Solecki and F.A. Boettcher (U.S.A.) Temporal integration of electrical stimulation of auditory nuclei in normal-hearing and hearing-impaired cat S. Rydmarker and K.C. Horner (France) Atrophy of outer hair cell stereocilia and hearing loss in hydropic cochleae P.K. Plinkert, H.P. Zenner and E. Heilbronn (Sweden, F.R.G.) A nicotinic acetylcholine receptor-like a-bungarotoxin-binding site on outer hair cells E.M. Relkin and R.L. Smith (U.S.A.) Forward masking of the compound action potential: Thresholds for the detection of the N, peak E. Zwicker and G.B. Henning (F.R.G.) On the effect of interaural phase differences on loudness Short Communications R. Rajan, D.R.F. Irvine and J.F. Cassell (Australia) Normative N, audiogram data for the barbiturate-anaesthetised domestic cat 314 No. 2 C. Collinge and L. Schweitzer (U.S.A.) Details of the central projections of the cochlear nerve in the hamster revealed by the fluorescent tracer Dil Y. Raphael (U.S.A.) Pure-tone overstimulation protects surviving avian hair cells from acoustic trauma D.J. Franklin, B.L. Lonsbury-Martin, B.B. Stagner and G.K. Martin (U.S.A.) Altered susceptibility of 2/, — f, acoustic-distortion products to the effects of repeated noise exposure in rabbits J.C. Meurice, J. Paquereau and A. Marillaud (France) Same location of the source of Pl of BAEPs and N, of CAP in guinea pig L.I. Hellstrom and R.A. Schmiedt (U.S.A.) Rate/level functions of auditory-nerve fibers in young and quiet-aged gerbils K.M. Khan, J.S. Hatfield and D.G. Drescher (U.S.A.) Carbohydrates associated with the cell coat surrounding cells of the rainbow trout saccular macula as revealed by lectin probes S.C. Marks, D.E. Mattox and R.A. Casero (U.S.A.) The effects of DFMO on polyamine metabolism in the inner ear H. Pratt, M. Zaaroor, N. Bleich and A. Starr (/srael, U.S.A.) Effects of myelin or cell body brainstem lesions on 3-channel Lissajous’ trajectories of feline auditory brainstem evoked potentials B.J. Dannhof and V. Bruns (F.R.G.) The organ of Corti in the bat Hipposideros bicolor M.L. Whitehead (U.K.) Slow variations of the amplitude and frequency of spontaneous otoacoustic emissions F.P. Fischer, J. Brix, I. Singer and C. Miltz (F.R.G.) Contacts between hair cells in the avian cochlea G.P. Richardson and I.J. Russell (U.K.) Cochlear cultures as a model system for studying aminoglycoside induced ototoxicity Announcements Contents to Volume 53 Author Index Subject Index