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Showing results for 1 - 20 of 361 1890s 1940s

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  1. Compressor at La Dificultad mine, Pachuca, Hidalgo

    • Collection: José Villegas Collection on Mining
    • Name: Compañía Real del Monte y Pachuca
    • Date: between 1895 and 1983
    • Topic: Mining machinery
    • Format: image
  2. Hacienda de Beneficio Loreto, Pachuca, Hidalgo

    • Collection: José Villegas Collection on Mining
    • Name: Compañía Real del Monte y Pachuca
    • Date: between 1895 and 1983
    • Topic: Silver mines and mining
    • Format: image
  3. La Dificultad mine steam engine house chimney, Pachuca, Hidalgo

    • Collection: José Villegas Collection on Mining
    • Name: Compañía Real del Monte y Pachuca
    • Date: between 1895 and 1983
    • Topic: Silver mines and mining
    • Format: image
  4. La Dificultad mine steam engine house, Pachuca, Hidalgo

    • Collection: José Villegas Collection on Mining
    • Name: Compañía Real del Monte y Pachuca
    • Date: between 1895 and 1983
    • Topic: Silver mines and mining
    • Format: image
  5. Casa de la máquina de vapor y chimenea Real del Monte

    • Collection: José Villegas Collection on Mining
    • Name: Compañía Real del Monte y Pachuca
    • Date: between 1895 and 1983
    • Topic: Silver mines and mining
    • Format: image
  6. Hacienda de Beneficio del Carmen, Zacatecas

    • Collection: José Villegas Collection on Mining
    • Date: between 1895 and 1945
    • Topic: Silver mines and mining
    • Format: image
  7. Hacienda de Beneficio de Begoña, Guadalupe, Zacatecas

    • Collection: José Villegas Collection on Mining
    • Date: between 1895 and 1945
    • Topic: Silver mines and mining
    • Format: image
  8. José Villegas Collection on Mining

    • Documents and photographs relating to silver mining operations in Mexico, principally Real del Monte and Pachuca during the periods of British (1824-1849) and Mexican (1849-1906) capitalization and management.
    • Creation Date: circa 1825-1983
  9. Handwritten genealogical notes on the Hubon family

    • Collection: Hubon Family Papers
    • Date: circa 1889-1950
    • Topic: Hubon family
    • Format: text
  10. Handwritten genealogical notes on the Hubon family

    • Collection: Hubon Family Papers
    • Date: circa 1890-1966
    • Topic: Hubon family
    • Format: text
  11. Hubon Family Papers

    • The Hubon Family Papers contain the correspondence of San Diego early settler Frederick Hubon (1827-1882), and include letters from three generations of Hubons, in addition to transcriptions, genealogical notes, and a carte-de-visite portrait.
    • Creation Date: circa 1801-1966
  12. Scientific Voyages & Expedition Reports

    • This collection contains 90 oceanographic voyages and scientific expedition reports from various countries and institution from around the world dating from the 19th and 20th centuries. They were collected by the former Scripps Institution of Oceanography Library.
    • Access: Restricted to UC San Diego use only
    • Creation Date: 1881-1971
  13. Leo Szilard Papers

    • A selection of documents, photos, and audio-visual materials of the nuclear physicist and inventor Leo Szilard.
    • Access: Some items restricted
    • Creation Date: 1898-1998
  14. San Diego History Center Photographs

    • Over 3,000 images from the San Diego History Center that document the rise and decline of the California fishing industry. These historical photographs from the 1870s to the 1980s represent the work of many important San Diego photographers.
    • Creation Date: 1880-1980
  15. Scripps Institution of Oceanography Letters, Clippings, Ships' Logs

    • Images of historical documents about Scripps expeditions.
    • Creation Date: 1873-1987
  16. Biology "Immunity II." (Chicago)

    • Collection: Leo Szilard Papers
    • Name: Szilard, Leo
    • Date: between 1898 and 1998
    • Format: text
  17. Biology 1 (Chicago). Includes draft of "Science is my racket" and "Chemostat"

    • Collection: Leo Szilard Papers
    • Name: Szilard, Leo
    • Date: between 1898 and 1998
    • Format: text
  18. Biology 7

    • Collection: Leo Szilard Papers
    • Name: Szilard, Leo
    • Date: between 1898 and 1998
    • Format: text
  19. Notebook 3

    • Collection: Leo Szilard Papers
    • Name: Szilard, Leo
    • Date: between 1898 and 1998
    • Format: text
  20. Patents - Liquid/Liquid extractor

    • Collection: Leo Szilard Papers
    • Name: Szilard, Leo
    • Date: between 1898 and 1998
    • Format: text