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coolchicksfromhistory: A 1963 photograph of laboratorian Gail Wathen performing an examination of an agar culture Petri dish inoculated with Salmonella typhi and typed using bacteriophage methods.
coolchicksfromhistory: A 1963 photograph of laboratorian Gail Wathen performing an examination of an agar culture Petri dish inoculated with Salmonella typhi and typed using bacteriophage methods.