Third International Conference on Small‐Angle Scattering. Grenoble, 4‐8 September 1973

The following 58 papers and abstracts (pp. 95-239) represent presentations at the Third International 'SAS' conference. This collection of papers differs from the usual proceedings of a conference in two important aspects; all of the contributed papers have been subjected to normal refereeing procedures and no effort, beyond the advance announcements of the opportunity for possible publication in one place, was made to get all conference authors to submit these manuscripts for publication. Many authors did not choose to submit manuscripts; abstracts of their papers are included here.* Some readers will recall that the edited abstracts of the second meeting in this series, held on 26-29 August 1970 in Graz, were published [J. Appl. Cryst. (1971). 4, 406-427] along with a critical review of the meeting written by Guinier and Brumberger (ibid. pp. 405-407). In the present case we again have to thank Professor Guinier both for his services in organizing the meeting and, particularly, for his extensive service~ as the Coeditor handling these papers. He managed to get all of the contributed papers received by the deadline through the normal multi-step refereeing and modification process in an unusually short time so that all of those found acceptable could appear together in an early issue, this one. This third meeting in the SAS series was a vigorous and well focused meeting which was attended by more than 150 persons from several continents in spite of a direct schedule conflict with the First European Crysstallographic Meeting in Bordeaux. The scientific interactions that characterize a good meeting were particularly strong. The vigorous discussions among the principal practitioners, following some of the presentations were notably substantive and penetrating. Be-