===================================================== THE JOURNAL OF ASTRONOMICAL DATA -- Volume 24 -- 2018 ===================================================== [1] Photometric data by the Delta Scuti Network I. 4 CVn M. Breger & P. Lenz [2] BOOK REVIEW: In Memoriam Hilmar Duerbeck A. Verdun [3] Optically Variable Quasars in the AllWISE and Pan-STARRS1 Data M. Usatov [4] CCD photometry of CY Aquarii V. The 2016-2017-2018 seasons. C. Wiedemair, C. Sterken, T. Eenmäe, T. Tuvikene, D. Moser, L. Niederbrunner, V. Oberhauser, M. Komar, P. Franzinelli and J. Enz