Off the Table

Welcome to this month’s crossword, constructed by Charles M. Deber, professor emeritus of biochemistry at the University of Toronto and senior scientist at the Hospital for Sick Children; and George Barany, professor emeritus of chemistry at the University of Minnesota Twin Cities. They thank Irene Cesa for test solving and editorial suggestions. C&EN thinks that puzzle solvers will be delighted to learn about elements that were missed by chemists from Mendeleev to the present.