[Report 1930] / School Medical Officer of Health, Hertfordshire County Council.

  • Hertfordshire (England). County Council. n 50062101.
Date:
1930

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: [Report 1930] / School Medical Officer of Health, Hertfordshire County Council. Source: Wellcome Collection.

    5/64 (page 5)