Mr. W.H. Power's report to the Local Government Board on an outbreak of diphtheria in the Hendon ward of the Hendon urban sanitary district / [W.H. Power].

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Mr. W.H. Power's report to the Local Government Board on an outbreak of diphtheria in the Hendon ward of the Hendon urban sanitary district / [W.H. Power]. Public Domain Mark. Source: Wellcome Collection.