Old age : the results of information received respecting nearly nine hundred persons who had attained the age of eighty years, including seventy-four centenarians / by George Murray Humphry.

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Old age : the results of information received respecting nearly nine hundred persons who had attained the age of eighty years, including seventy-four centenarians / by George Murray Humphry. Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.