"Sonic Flocculation Machine"

Item — Box: 1, Folder: 3

Staff Only

Scope and Contents

From the Collection: The Hillary W. St. Clair photograph collection contains 1 box of 215 negatives, slides, and photographs depicting imges of and data about mines and mining in America produced and collected by St. Clair throughout his career as a metallurgist for the United States Bureau of Mines.

Dates

1880-1980

Language of Materials

From the Collection: Collection materials are in English.

Conditions Governing Access

Twenty-four hour advanced notice encouraged. Materials must be used on-site. Access to parts of this collection may be restricted under provisions of state or federal law.