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.
