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- Correspondence Details
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Sent From (Definite): Charles Howard UsherSent To (Definite): Karl PearsonDate: 24 Dec 1913
- Current Holder(s)
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Holder (Definite): University College London: Special Collections
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Sent from Charles Howard Usher
24 Dec 1913
Description:[sending specimens of sections of irides, advice re: observation of them]
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Sent to Karl Pearson
24 Dec 1913
Description:[sending specimens of sections of irides, advice re: observation of them]