Report of the Medical Officer of Health for the years 1922-23 and 1923-24, and review (1902-25) of the public health conditions and progess of Johannesburg.

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Report of the Medical Officer of Health for the years 1922-23 and 1923-24, and review (1902-25) of the public health conditions and progess of Johannesburg. Credit: Wellcome Collection. Public Domain Mark