Search Results       Your search for [subject]Mask, Proper -- Protection against pneumonic plague returned 1 record.           Studies on pneumonic plague and plague immunization.  IX. Protective inoculation against pneumonic plague. by Strong, Richard P.; Subject: Medical Sciences; Pneumonic plague -- Manchuria Expedition -- Protec tive inoculation -- 1910-1911; Mask, Proper -- Protection against pneumonic plague.          Add to Book Cart   |    Digital Copy Available Relevance: 56.81%