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Credit
A text-book of bacteriology : a practical treatise for students and practitioners of medicine / by Philip Hanson His and Hans Zinsser ; with one hundred and fifty-six illustrations in the text, some of which are colored. Public Domain Mark. Source: Wellcome Collection.
Provider
This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.