| Central Nervous System Synapses in Cell Culture P. G. Nelson    359  Synapse Formation and Neurotrophic Effects on Muscle Cell Lines Y. Kido-     koro, S. Heinemann, D. Schubert, B. L. Brandt and F. G. Klier    373 Biochemical Studies on the Development of Primary Sympathetic Neurons in     Cell Culture P. H. Patterson, L. F. Reichardt and L. L. Y. Chun    389  	 Physiological and Morphological Studies on Developing Sympathetic Neurons  in Dissociated Cell Culture P. H. O'Lague, P. R. MacLeish, C. A. Nurse,  P. Claude, E. J. Furshpan and D. D. Potter    399 The Formation of Neuromuscular Synapses M. R. Bennett and A. G. Pettigrew    409 Formation and Elimination of Synapses in Skeletal Muscles of Rat  J. K. S. Jansen, D. C. Van Essen and M. C. Brown    425 Physiological Properties of Nerve-Muscle Junctions Developing In Vivo  M. J. Dennis and C. A. Ort    435 Cell Junctions in Development, with Particular Reference to the Neural  Tube J.-P. Revel and S. S. Brown    443 LONG-TERM CHANGES AND SPECIFICITY OF CONNECTIONS Responses of Spinal Motor Neurons to Section and Restoration of Peripheral  Motor Connections M. Kuno    457 A Common Presynaptic Locus for the Synaptic Changes Underlying Short-term  Habituation and Sensitization of the Gill-withdrawal Reflex in Aplysia  E. R. Kandel, M. Brunelli, J. Byrne and V. Castellucci    465 Modification and Regeneration of Synaptic Connections in Cultured Leech  Ganglia S. Miyazaki, J. G. Nicholls and B. G. Wallace    483 Repair of Specific Neuronal Pathways in the Leech D. Van Essen and  J. K. S. Jansen    495 Topographic Polarity of the Optic Tectum Studied by Reimplantation of the  Tectal Tissue in Adult Goldfish M. G. Yoon    503 RETINA AND VISUAL SYSTEM Ultrastructural Analysis of Functional Changes in the Synaptic Endings of  Turtle Cone Cells S. F. Schaeffer and E. Raviola    521 Transmission of Signals from Photoreceptors of Ganglion Cells in the Eye of the  Turtle D. A. Baylor and R. Fettiplace    529 Synaptic Transmission from Photoreceptors to Bipolar and Horizontal Cells in  the Carp Retina A. Kaneko and H. Shimazaki    537 Receptor Coupling in the Toad Retina G. L. Fain, G. H. Gold and J. E.  Dowling    547 Signal Transmission from Photoreceptors to Ganglion Cells in the Visual Sys-   tem of the Giant Barnacle S. Ozawa, S. Hagiwara, K. Nicolaysen and  A. E. Stuart    563 Synaptic Chemistry of Identified Cells in the Vertebrate Retina D. M. K. Lam    571 Functional Architecture of Area 17 in Normal and Monocularly Deprived Ma-  caque Monkeys D. H. Hubel, T. N. Wiesel and S. LeVay    581 The Functional Organization of Projections from Striate to Prestriate Visual   Cortex in the Rhesus Monkey S. M. Zeki    591 Synaptic Competition in the Kitten's Visual Cortex C. Blakemore, R. C. Van  Sluyters and J. A. Movshon    601 Adaptive Synaptic Connections Formed in the Visual Pathways in Response to   Congenitally Aberrant Inputs R. W. Guillery and V. A. Casagrande    611 MODEL SYSTEMS Basilar Membrane Motion G. Zweig    619 Nonlinear Interactions Underlying Visual Orientation Behavior of the Fly  T. Poggio and W. Reichardt    635 Analyzing Natural Images: A Computational Theory of Texture Vision D. Marr    647 Peripheral Feedback in the Leech Swimming Rhythm W. B. Kristan, Jr. and  G. S. Stent    663 						SUMMARY The Synapse C. F. Stevens    675 
 
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