H. J. GILKEY, S. J. CHAMBERLIN and R. W. BEAL; Reinforced Concrete Hinges of Mesnager Type G. C. ERNST; Relations Between Curvature and Speed, M. L. FOX; Discussion, W. C. JOHNSON and R. A. MOYER; Stresses in Concrete Pavement Slabs, M. G. SPANGLAR and F. E. LIGHTBU RN; Discussion, R. K. BERNHARD, and R. D. BRADBURY; Structural Design of Flexible Pipe Culverts, M. G. SPANGLER; Discussion, G. E. S HAFER; Experimental Determination of Variation in Pressure Intensity Over Contact Area of Tires, L. W. TELLER and J. A. BUCHANAN; Discussion, G. M. SPROWLS; Highway Design Research as Related to Safety of Vehicle Operation, C. M. NOBLE; Discussion, B. MARSH and A. R. LAUER; Joint Committee on Roadside Development of American Association of State Highway Officials and Highway Research Board, H. J. NEALE; Highway Cross-Section, W. H. SIMONSON; Discussion, W. W. M ACK and W. H. SIMONSON; Highway Design, its Relation to Landscape Objectives, A. R. NICHOLS; Discussion, O. L. KIPP, F. LAVIS, and W. H. SIMONSON; Report of Department of Materials and Construction, C. H. SCHOLER; Committee on Methods of Handling and Placing Concrete, Symposium on Vibration of Pavement Concrete! Discussion, F. H. JACKSO N; Vibration of Concrete According to French Practice, J. S. CRANDELL; Placement of Concrete by Vibration on Federal Aid Project 425-E in Wisconsin, G. H. LARSON and W. H. ZAMZOW; Experience with Concrete Pavement Vibrators in Kansas, R. D. FINNEY; Investigation of Vibratory Method of Finishing Concrete Pavement in Illinois, V. L. GLOVER; Discussion, B. MYERS, R. B. GAGE, A. A. LEVISON, C. H. CHOLE R; Report of Committee on Characteristics of Asphalts, E. F. KELLEY; Durability Tests of Certain Portland Cements, I. PAUL, P. H. BATES, C. H. SCHOLER, M. O. WITHEY, R. B. GAGE, L. C. MEDER, M. HIRSCHTHAL, H. S. MATTIMORE; Committee on Fillers and Cushion Courses for Brick and Block Pavements, J. S. CRANDALL; Filler Characteristics Observed on Hocking County Filler Test Road, H. Z. SCHOFIELD; Committee on Correlation of Research in Mineral Aggregates, R. R. LITEHISER; Relation Between Los Angeles Abrasion Tests Results and Service Records of Coarse Aggregates, D. O. WOOLF; Significance of Early Heat Liberation of Cement Paste, R. W. CARLSON; Study of Translucent Asphaltic Films, J. R. BENSON; Committee on Maintenance Costs, H. K. BISHOP; Discussion, H. C. DICKINSON and H. K. BISHOP; Report of Department of Traffic, C. J. TILDEN; Committee on Traffic Regulation in Municipalities -- One-Way Streets, W. S. CANNING; Discussion, M. O. ELDRIDGE, R. L. MORRISON and W. S. CANNING; Perception and Visibility of Automobile License Plates, M. H. ALDRICH; Discussion, J. BARNETT, C. M. JOHNSTON and A. R. LAUER; Dispersion of Highway Traffic by Timer Periods, W. A. SHELTON; Seeing on Highway, K. M. REI D; Discussion, H. C. DICKINSON, R. L. MORRISON, A. R. LAUER, B. D. GR EENSHIELDS, M. HOLLAND, V. J. BROWN, K. M. REID; Accident Records and Traffic Regulation, E. W. JAMES; Discussion, L. W. McINTYRE, B. M ARSH, J. S. BURCH, R. L. MORRISON, E. W. JAMES; Detection of Accident-Prone Drivers, H. M. JOHNSON; Discussion, A. R. LAUER, C. M. JOHNSTON, R. L. MORRISON and H. M. JOHNSON; Highway Safety Problem, R. W. CRUM; Discussion, M. HOLLAND and C. M. JOHNSTON; Report of Department of Soils Investigations, C. A. HOGENTOGLER; Committee on Exploring Surveying and Sampling Soils for Highway Purposes, F. J. CO NVERSE; Design of Cellular Cofferdam, H. EPSTEIN; Improvement of Subgrades, H. C. PORTER; Materials and Design of Stabilized Soil Road Mixtures, G. A. RAHN; Principles of Soil Mechanics Involved in Fill Construction, L. A. PALMER and E. S. BARBER; Discussion, D. P. K RYNINE; Summary of Symposium on Cement-Soil Stabilization, W. H. MILL S; Discussion, A. A. LEVISON and W. H. MILLS; Sand-Bituminous Stabilization, H. C. WEATHERS.