CRITICAL EVALUATION OF CHEMICAL AND PHYSICAL STRUCTURAL INFORMATION.

Proceedings includes papers on the problems of the accuracy and reliability of chemical and physical structural information derived from different types of measurements. Topics include analysis of experimental data, molecular geometry of free molecules, molecular geometry in the solid and liquid states, protein structure, vibrational force fields, large-amplitude motions, and electronic charge distribution by resonance and other methods. Following is a list of titles and authors: Introduction to Today's Data Analysis. By John W. Tukey. Comments on the Fitting of Power Series. By Albert E. Beaton and John W. Tukey. Some Monte Carlo Results on Robust/Resistant Regression. By D. F. Andrews. Some Revised Approaches to X-Ray Crystal Structure Analysis Calculations. By W. L. Nicholson. Data Analysis for Molecular Structure: Today and Tomorrow. By John W. Tukey. Definitions and General Theory of Interatomic Distances. By Victor W. Laurie. Critical Evaluation of Structural Information from Gaseous Electron Diffraction. By Kenneth Hedberg. Structural Parameters from Rotational Spectra. By R. H. Schwendeman. Critical Evaluation of Molecular Constants from Optical Spectra. By D. A. Ramsay. Molecular Structure from NMR in Liquid Crystalline Solvents. By Lawrence C. Snyder and Saul Meiboom. Well-Behaved Crystal Structure Determinations. By David P. Shoemaker. Problem Crystal Structures. By James A. Ibers. Incorrect Crystal Structures: Can They Be Avoided? By Jerry Donohue.