Main content Williams Haynes Portrait Collection, 1800s-1960s (inclusive) Extent: 1700 photographic prints ((16 boxes)) Abstract: Portraits of chemists, chemical industrialists, and notable individuals from chemical-related fields dating from the 1800s to the 1960s. Held at: Science History Institute Archives [Contact Us]
Main content Tiers-Frasch Collection, 1843-1919 (inclusive) Extent: 1.0 linear feet (2 boxes) Abstract: The Tiers-Frasch Collection consists of the business records from the firm of Tiers & Company, especially as they pertain to Herman Frasch's process for extracting sulfur. Held at: Science History Institute Archives [Contact Us]