Stephen R. Heller
Washington DC 20460

EPA/NIH Mass Spectral Database Supplement

An EPA/NIH mass spectral database supplement contains 8807 mass spectra and a completely new index that covers the first four volumes of 25,556 spectra as well. Each spectrum is presented in bar graph format over the full mass range and is accompanied by a Chemical Abstracts Index subject name, molecular formula, and Chemical Abstracts Registry registry number. The supplemental set is available for $42 from the U.S. Government Printing Office. The stock order number is SN-003-003-22268-3.