The twenty-two papers published in this volume were originally presented at the American Chemical Society, Division of the History of Chemistry symposium held on September 12-17, 1982. Individual papers are abstracted separately: 21-1241, 21-1242, 21-1251, 21-1425, 21-1431, 21-1450, 21-1467, 21-1469, 21-1476, 21-1606, 21-1752, 21-1859, 21-1943, 21-2003, 21-2016, 21-2024, 21-2028, 21-2041, 21-2164, 21-2210, 21-2242, and 21-2365. -- AATA