PUBLICATIONS AND REPORTS MEETING PAPERS PRESENTED Symposium on Spectroscopy, Ohio State University, Columbus June 13-17, 1955 D. Kivelson, Theory of internal rotations (invited paper). Meeting of the Acoustical Society of America, Pennsylvania State University July 2, 1955 G. W. Hughes and M. Halle, Spectral properties of stop and fricative consonants. 1955 August Meeting of the American Physical Society, University of Mexico, Mexico City, August 29-31, 1955 W. B. Nottingham, Application of space-charge theory to the determination of electron emitter properties. American Physiological Society, Tufts College, September 6-9, 1955 Medford, Massachusetts L. S. Frishkopf and W. A. Rosenblith, Studies of population responses in the peripheral auditory nervous system. Third London Symposium on Information Theory, The Royal Institution, September 12-17, 1955 P. London Elias, Coding for two noisy channels. D. A. Huffman, The synthesis of linear sequential coding networks. J. C. R. Licklider, Auditory frequency analysis. P. D. Wall, J. Y. Lettvin, W. S. McCulloch, W. H. Pitts, Factors limiting the maximum information-carrying capacity of an afferent system of nerve fibers. V. H. Yngve, The translation of languages by machine. A. C.M. Meeting, Moore School of Electrical Engineering, University of Pennsylvania, Philadelphia, September 14-16, 1955 D. A. Huffman, The design and use of hazard-free switching networks. Conference on Line Broadening, University of Pittsburgh September 15-17, 1955 M. W. P. Strandberg, Microwave spectroscopy with molecular beams. Connecticut Valley Section, IRE, September 22, 1955 M. W. P. Strandberg, New Haven, Connecticut Microwave spectroscopy clock. Physiological Society, Dundee, Scotland September 23-24, 1955 A. M. Andrew, Action potentials from the frog colliculus. viii JOURNAL ARTICLES ACCEPTED FOR PUBLICATION (Reprints of these and previous articles still in print are available from the Document Room, 20-B-221, Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge 39, Massachusetts) P. Elias, Predictive coding - Part I P. Elias, A review of three papers on semantic information by Carnap and Bar-Hillel (J. Symbolic Logic) P. Elias, Coding for two noisy channels Information Theory) J. M. Goldey and S. C. Brown, Microwave determination of the average masses of electrons and holes in germanium (Phys. Rev.) E. A. Guillemin, A new approach to the problem of cascade synthesis PGCT) (Trans. IRE, PGIT) (Proc. of the Third London Symposium on D. A. Huffman, The synthesis of linear sequential coding networks Third London Symposium on Information Theory) (Trans. IRE, (Proc. of the J. Y. Lettvin, W. S. McCulloch, W. H. Pitts, and P. D. Wall, Central effects of strychnine on spinal afferent fibers (Archives of Neurology and Psychiatry) P. M. Lewis II, The concept of the one on voltage transfer synthesis PGCT) J. C. R. Licklider, Auditory frequency analysis, Symposium on Information Theory) W. S. McCulloch, (Acta biotheor.) C. Brown, Electron loss processes in the hydrogen afterglow M. Peter and M. W. P. (Proc. IRE) R. (Proc. of the Third London Toward some circuitry of ethical robots K. B. Persson and S. (Phys. Rev.) (Trans. IRE, Strandberg, Phase stabilization of microwave oscillators A. Silverman, On binary channels and their cascades (Trans. IRE, R. A. Silverman, Some remarks on scattering from eddies M. Tinkham and M. W. P. Strandberg, microwave cavities (Proc. IRE) PGIT) (Proc. IRE) The excitation of circular polarization in P. D. Wall, J. Y. Lettvin, W. S. McCulloch, and W. H. Pitts, Factors limiting the maximum impulse transmitting ability of an afferent system of nerve fibers (Proc. of the Third London Symposium on Information Theory) P. D. Wall, W. S. McCulloch, J. Y. Lettvin, and W. H. Pitts, Effects of strychnine with special reference to spinal afferent fibers (Epilepsia) P. D. Wall, W. S. McCulloch, J. Y. Lettvin, and W. H. Pitts, The terminal arborisation of the cat's pyramidal tract determined by a new technique (Yale J. Biology and Medicine) C. M. Witcher, The blind make safer machinists (American Machinist) V. H. Yngve, The translation of languages by machine Symposium on Information Theory) (Proc. of the Third London LETTERS TO THE EDITOR ACCEPTED FOR PUBLICATION C. (Phys. Rev.) Schwartz, The hyperfine structure anomaly in atomic P-states SPECIAL PUBLICATIONS W. P. S. C. Allis, Motions of ions and electrons, Handbuch der Physik, 1955. Brown, High-frequency gas-discharge breakdown, Handbuch der Physik, C. R. Hurtig, Directly coupled amplifiers, McGraw-Hill Book Co., Inc. Chapter 3, 1955. Handbook on Transistors, W. B. Nottingham, Thermionic emission, Handbuch der Physik, 1955. V. H. Yngve, Syntax and problems of multiple meaning, Chapter 14, Machine Translation of Languages, John Wiley and Sons, Inc. and Technology Press, page 208.