Mr. Spear's report to the Local Government Board on the continued prevalence of diphtheria in the Aylesbury urban sanitary district.

  • Spear, John.
Date:
1888

Licence: Public Domain Mark

Credit: Mr. Spear's report to the Local Government Board on the continued prevalence of diphtheria in the Aylesbury urban sanitary district. Source: Wellcome Collection.

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