Dr. Ballard's interim report to the Local Government Board on an inquiry at Middlesbrough and its neighbourhood, as to an epidemic of so called "pneumonia", but which was infact a specific "pleuro-pneumonic fever" / [Edward Ballard].

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Dr. Ballard's interim report to the Local Government Board on an inquiry at Middlesbrough and its neighbourhood, as to an epidemic of so called "pneumonia", but which was infact a specific "pleuro-pneumonic fever" / [Edward Ballard]. Public Domain Mark. Source: Wellcome Collection.