21. [Unpublished index of corn specimens] (section 2, image 4)

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22. [Unpublished index of corn specimens] (section 2, image 3)

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23. [Unpublished index of corn specimens] (section 2, image 2)

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24. [Unpublished index of corn specimens] (section 3, image 10)

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25. [Unpublished index of corn specimens] (section 3, image 9)

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26. [Unpublished index of corn specimens] (section 3, image 8)

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27. [Unpublished index of corn specimens] (section 4, image 7)

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28. [Unpublished index of corn specimens] (section 4, image 10)

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29. [Unpublished index of corn specimens] (section 4, image 9)

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30. [Unpublished index of corn specimens] (section 4, image 8)

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31. Chromosomes

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32. Chromosome Structure in the Salivary Glands of Sciara

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33. Chromosomes

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34. Barbara McClintock receiving honorary doctorate from Yale University

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35. Barbara McClintock

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36. Barbara McClintock

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37. Barbara McClintock with an unidentified man at the Rosenstiel Awards

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38. Barbara McClintock at Cold Spring Harbor

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39. McClintock with George P. Redei at the Stadler Genetics Symposium, University of Missouri-Columbia

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40. McClintock with staff at Centro Internacional De Agricultura Tropical

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