51. [John Shaw Billings] Publication: [ca. 1911] Subject(s): PhysiciansLibrariansUnited StatesBillings, John S. (John Shaw), 1838-1913.
58. Internationale Hygiene-Ausstellung Publication: Dresden, Germany : [Exhibition Palace], 1911 Subject(s): EyeAnniversaries and Special EventsInternational Hygiene Exhibition