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Start Over Copyright Copyright may apply ✖Remove constraint Copyright: Copyright may apply Publication Year 1950 to 1959 ✖Remove constraint Publication Year: <span class="from" data-blrl-begin="1950">1950</span> to <span class="to" data-blrl-end="1959">1959</span>

31. Letter from Francis Crick to Joshua Lederberg

Publication:
Produced: 7 January 1959
Archival Collection:
The Francis Crick Papers (Profiles in Science)

32. Letter from Joshua Lederberg to Francis Crick

Publication:
Produced: 10 December 1958
Archival Collection:
The Francis Crick Papers (Profiles in Science)

33. Letter from Francis Crick to Cy Levinthal

Publication:
Produced: 5 April 1957
Archival Collection:
The Francis Crick Papers (Profiles in Science)

34. Letter from Cy Levinthal to Francis Crick

Publication:
Produced: [ca. March 1957]
Archival Collection:
The Francis Crick Papers (Profiles in Science)

35. Letter from Francis Crick to Cy Levinthal

Publication:
Produced: 1 February 1957
Archival Collection:
The Francis Crick Papers (Profiles in Science)

36. [Notebook entry on] "DNA"

Publication:
Produced: 14 December 1951
Archival Collection:
The Francis Crick Papers (Profiles in Science)

37. [Notebook entry on] "Model Building"

Publication:
Produced: [18-19 January 1954]
Archival Collection:
The Francis Crick Papers (Profiles in Science)

38. [Notebook entry on] "Egg White Column"

Publication:
Produced: [5-8 February 1955]
Archival Collection:
The Francis Crick Papers (Profiles in Science)

39. [Notebook entry on] "Centrifuging Egg White"

Publication:
Produced: 20 January 1955
Archival Collection:
The Francis Crick Papers (Profiles in Science)

40. [Notebook entry on] "Cell Wall Prep"

Publication:
Produced: 21 January 1955
Archival Collection:
The Francis Crick Papers (Profiles in Science)

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