The Electronic Periodic Table of the Elements program has been complied and tested on VMS and IRIX operating systems using the standard compilers. The main issue of portability is the definition of screen attribute symbols such as those for BOLD and REVERSE which seem to differ depending on the curses application. Also the implementation of BELL is variable and sometimes so is the method by which single character input is achieved (in setinput.c). Changing these aspects is trival with the proper documentation and the compiler will point them out. The implementation may find it difficult to interpret arrow keys for terminals which are not vt series. A direct character by character interpetation of the arrow key sequences is used. H,J,K,L keys provide the same functions. Any comments, improvements or suggestions can be sent to: Todd M. Miller Chemistry Department Brandeis University Waltham, MA 02254 USA or tmiller@jbh.chem.brandeis.edu