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Darwin, C. R. in correspondent 
Mason, P. B. in correspondent 
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DCP-LETT-7615

From:
Charles Robert Darwin
To:
Philip Brookes Mason
Date:
24 Mar [1871]
Source of text:
Cleveland Health Sciences Library (Robert M. Stecher collection)
Summary:

Interested in occurrence of hair on backs of weakly children. Asks PBM if he would report particulars of any case he observes during next 6–12 months.

Contributor:
Darwin Correspondence Project

DCP-LETT-7641

From:
Philip Brookes Mason
To:
Charles Robert Darwin
Date:
29 Mar 1871
Source of text:
DAR 90: 72–3
Summary:

More details on children with hairy backs;

reasons for greater mortality rate of male children.

Contributor:
Darwin Correspondence Project
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DCP-LETT-7647

From:
Charles Robert Darwin
To:
Philip Brookes Mason
Date:
31 Mar [1871]
Source of text:
American Philosophical Society (Mss.B.D25.391)
Summary:

Thanks him for information on children with hairy backs.

Discusses paper by J. M. Duncan on the relative weights of male and female infants.

Contributor:
Darwin Correspondence Project
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