Sub-series 4. Publications, 1918-2005, undated

Arranged alphabetically by subject, this sub-series contains chemistry and textiles related publications collected by Herbert T. Pratt. Publications printed by chemical companies (most notably Betz Laboratories, Incorporated and E.I. du Pont de Nemours & Company, Incorporated) and professional organizations make up the largest components of the materials in this sub-series. Publications printed by scientific instrument manufacturers (Finnigan Corporation and Finnigan MAT), a museum, professional conferences, historical researchers, and an antiques firm are also present here.

The contents of this sub-series consist of a variety of different types of publications. Corporate annual reports are the most common items preserved in this sub-series. Other miscellaneous types of publications, including, but not limited to, programs, handbooks, member directories, membership booklets, and catalogs are found here as well.