William F. Foshag papers, circa 1935-1949

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This accession consists of records documenting William F. Foshag's studies in the geology of Central America, notably on the geology of Mexico and on jades of Guatemala. Foshag's notes on literature about Mexican geology make up a large portion of the accession. Also included are illustrations and photographs for published papers, manuscripts, maps of stratigraphic sections, contour maps, and field notebooks (including some observations of the Paricutin Volcano). Notebooks on Foshag's 1949 study of Central American jade objects include rubbings of objects and also small samples of jade taped into the notebooks. The collection also includes notes and sketches on minerals observed in California, and studies of ores in various mining areas in California and Mexico.

Date Range

circa 1935-1949

Access Information

Many of SIA's holdings are located off-site, and advance notice is recommended to consult a collection. Please email the SIA Reference Team at osiaref@si.edu.



  • Paricutín, Volcá
  • Guatemala
  • Mexico
  • California


Collection record

Accession #

SIA Acc. 91-144


2 record storage boxes

Physical Location

Smithsonian Institution Archives