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Showing results for 1 - 50 of 348 1960s 1920s 1910s 1980s

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  1. 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
  2. Scripps Institution of Oceanography Letters, Clippings, Ships' Logs

    • Images of historical documents about Scripps expeditions.
    • Creation Date: 1873-1987
  3. Total Annual Landings and Shipments into California of Commercial Fish, Mollusks, and Crustaceans; includes Sardine Deliveries to Reduction Ships During 1879 through 1986

    • Collection: Fish Catch Statistics. California Department of Fish and Game
    • Name: California. Bureau of Marine Fisheries
    • Date: 1879-1986
    • Format: data
  4. 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
  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. 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
  7. 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
  8. 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
  9. 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
  10. [Biology (G-30)]

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  11. [Biology (G-31)]

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  12. [Biology (K-12)]

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  13. [Biology (R-35)]

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  14. [Biology (S-68)]

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  15. A-miscellaneous - Correspondence

    • Collection: Leo Szilard Papers
    • Name: Szilard, Leo -- correspondence
    • Date: between 1898 and 1998
    • Format: text
  16. A.E.C. (Atomic Energy Commission) 

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  17. Account of the Chicago Project 

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

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  19. Aging (S-48) 

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  20. Airline Conference

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

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  22. American Academy of Arts and Sciences

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  23. American Arbitration Association

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  24. American Institute of Biological Sciences. (A.I.B.S.)

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

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

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  27. Antibody letters (V-83) 

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

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  29. Association for Scientific Collaboration, Inc.

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

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  31. Atomic Energy Commission

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  32. Atomic Energy Control Conference

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  33. B- miscellaneous - Correspondence - part 1

    • Collection: Leo Szilard Papers
    • Name: Szilard, Leo -- correspondence
    • Date: between 1898 and 1998
    • Format: text
  34. B- miscellaneous - Correspondence - part 2

    • Collection: Leo Szilard Papers
    • Name: Szilard, Leo -- correspondence
    • Date: between 1898 and 1998
    • Format: text
  35. B-Miscellaneous - Correspondence

    • Collection: Leo Szilard Papers
    • Name: Szilard, Leo -- correspondence
    • Date: between 1898 and 1998
    • Format: text
  36. Bethe Chicago (G-29)

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  37. Bibliographic materials 

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  38. Biographical notes and sketches

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  39. Biographical publications

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  40. Biographical References 

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  41. Biographical References for Extension of Leo Szilard Biography 

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  42. 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
  43. Biology 2 (Chicago)

    • Collection: Leo Szilard Papers
    • Name: Szilard, Leo
    • Date: between 1898 and 1998
    • Format: text
  44. Biology 3 (Chicago)

    • Collection: Leo Szilard Papers
    • Name: Szilard, Leo
    • Date: between 1898 and 1998
    • Format: text
  45. Biology 4 (Chicago)

    • Collection: Leo Szilard Papers
    • Name: Szilard, Leo
    • Date: between 1898 and 1998
    • Format: text
  46. Biology 6

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

    • Collection: Leo Szilard Papers
    • Name: Szilard, Leo
    • Date: between 1898 and 1998
    • Format: text
  48. Biology (Aging G-27) 

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  49. Biology Algae (E-33) 

    • Collection: Leo Szilard Papers
    • Date: between 1898 and 1998
    • Format: text
  50. Biology (B-1) 

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