Chapter headings and selected papers: Muscle Receptors. Recent work on the development and reinnervation of muscle spindles, D. Barker. Development of spindles following nerve crush in newborn rats, J. Kucera et al . Muscle history dependence of responses of muscle spindles to stretch, U. Proske et al . Induction of adrenergic excitation of nociceptive sense organs by nerve injury, E. R. Perl. Late peripheral and spinal cord reflex changes following neonatal nerve crush in rats, P. Hnik et al . Spinal Motoneurones and Motor Units. Some comments on the organization of motoneurons, R. E. Burke. Changes in motor unit properties and composition during postnatal development in the rat, H. -J. Gates et al . Gaze Muscle Afferents. The need for eye muscle proprioception, M. J. Steinbach. The origin of horizontal eye signals in neck muscles during orienting, A. Berthoz et al . Spinal Circuits. Patterns of group Ia projections in the upper limb in man, P. Cavallari. Distribution of heteronymous recurrent inhibition in man, A. Creange et al . Central actions of muscle spindle secondaries: via which neuronal pathways are they evoked?, E. Jankowska. Presynaptic inhibition in dystonia, B. L. Day. Author index. Subject index.