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Showing results for 1 - 50 of 346 1920s 1980s 1940s 1900s

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  1. SIO Photographs Collection

    • A diverse assortment of photographic images acquired by the former SIO Archives and collated into one collection. Images include SIO staff and faculty, the campus, and scientific expeditions.
    • Creation Date: between 1900 and 2006
  2. 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
  3. 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
  4. 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
  5. 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
  6. 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
  7. 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
  8. Baja California and the West Postcard Collection

    • Postcards depicting California, Baja California, and the Southwest, mostly from the early 1900s. Images of Tijuana, Ensenada, Balboa Park, and the California missions are well-represented in this collection.
    • Creation Date: 1900-1989
  9. Scrapbook of clippings #4

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  10. Atomic bomb development

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  11. Arms Control

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  12. Scrapbook of clippings #3

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  13. Angels Project

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  14. Scrapbook of clippings #2

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  15. Amino Acid Charts

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  16. Aging

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  17. Scrapbook of clippings #1

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  18. Miscellaneous Materials

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  19. University of Colorado Medical Center

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  20. Miscellaneous - General Materials - 3

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  21. University of Chicago - Miscellaneous

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  22. Miscellaneous - General Materials - 2

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  23. Miscellaneous - General Materials - 1

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  24. University of Chicago - Council of the University Senate

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  25. University of Chicago - Board of Trustees

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  26. U.S. War Department

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  27. U.S. Senate

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  28. Patents 

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  29. Freedom of Information Act - Miscellaneous 

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  30. Freedom of Information Act - U.S. Office of Personnel Management 

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  31. Freedom of Information Act - General Services Administration 

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  32. Freedom of Information Act - Federal Bureau of Investigation (FBI) - 3

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  33. Freedom of Information Act - Federal Bureau of Investigation (FBI) - 2

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  34. Freedom of Information Act - Federal Bureau of Investigation (FBI) - 1

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  35. Freedom of Information Act - Department of the Navy 

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  36. Freedom of Information Act - Department of the Army - 2

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  37. Freedom of Information Act - Department of the Army - 1

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  38. Freedom of Information Act - Department of State 

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  39. Freedom of Information Act - Atomic Energy Commission 

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  40. Freedom of Information Act - Freedom of Information Act 

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  41. Outline for Proposed Leo Szilard Biography: Roladex chronology of events in Leo Szilard's life

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  42. Outline for Proposed Leo Szilard Biography: Material from History Box Folders not Used in Bailyn Set 

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  43. Outline for Proposed Leo Szilard Biography: "From Jacob Marshak" 

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  44. Outline for Proposed Leo Szilard Biography: For possible addition to Bailyn materials 

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  45. Collected Works of Leo Szilard: Proposed Format for Volume II 

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  46. Collected Works of Leo Szilard: Notes - 5

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  47. Collected Works of Leo Szilard: Notes - 4

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  48. Collected Works of Leo Szilard: Notes - 3

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  49. Collected Works of Leo Szilard: Notes - 2

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  50. Collected Works of Leo Szilard: Notes - 1

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