1. Health map of Montreal: showing the annual death rate per thousand for the average of the years 1876, '77, and '78, resulting from smallpox, typhoid fever, and diphtheria Author(s): Hovey, Mr., cartographer Publication: [Montreal?] : [publisher not identified], [1879?] Subject(s): Smallpox -- mortalityDiphtheria -- mortalityTyphoid Fever -- mortalityQuebec
