Threescore years and ten : reminiscences of the late Sophia Elizabeth De Morgan to which are added letters to and from her husband, the late Augustus De Morgan, and others / edited by her daughter Mary A. De Morgan.

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Threescore years and ten : reminiscences of the late Sophia Elizabeth De Morgan to which are added letters to and from her husband, the late Augustus De Morgan, and others / edited by her daughter Mary A. De Morgan. Public Domain Mark. Source: Wellcome Collection.