Sanitary and prventative measures, disinfectants and how to use them [microform] : what may be done by the public to guard against contagious and infectious diseases
Cover title "Issued by the Board of Health of Halifax, N.S., for the use and information of the Citizens." Filmed from a copy of the original publication held by the Izaak Walton Killam Memorial Library, Dalhousie University 43
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