Abstract

<h2>Acta Crystallographica Section A</h2><h3>Crystal Physics, Diffraction, Theoretical and General Crystallography</h3><h3>0567-7394</h3> <h2>book reviews</h2> Volume 35 Part 2 Pages 344-345 March 1979 <h2> Topics in applied physics. Vol. 22. X-ray optics. Applications to solids edited by H. J. Queisser</h2> M. Schlenker Acta Cryst. (1979). A35, 344 Eleventh International Congress of Crystallography Communicated Abstracts Supplement to Acta CrystaUographica The abstracts of papers communicated to the Eleventh International Union of Crystallography, Warsaw, Poland, 3-12 August 1978, have been published as a Supplement to Acta Crystallographica, Section A. Defects in the binding of many copies of the Supplement have delayed its publication considerably. Although the Supplement is numbered Part $4 of Volume A34 and is dated 1 August 1978, the copies were not received from Poland by Munksgaard for distribution to subscribers until 15 January 1979. One copy of the Supple- ment has now been sent to every subscriber to the Union's journals, whether they subscribe to one or both journals. The Union regrets any inconvenience caused by the delay in publication of the Supplement. Acta Cryst. (1979). A35, 344 Dimensions of Material Deposited under the Supplementary Publication Scheme The specification of the dimensions of material for deposit, given in Notes for Authors