. Annual Report of the State Board of Health of Maryland for the Year Ending December 31, 00was 67 per 100,000. Taking the twenty-one grand groupsinto which the country is divided on a basis of physiog-raphy, and arranging them according to their popula-tion density one finds that the typhoid mortality risesas population density decreases, until we reach a popula-tion density of 50 persons per square mile. Below thatpoint the relations of typhoid to population density are,as might be expected, quite irregular. (See Table II.) The experience of Maryland supports the general indica-tions
. Annual Report of the State Board of Health of Maryland for the Year Ending December 31, 00was 67 per 100,000. Taking the twenty-one grand groupsinto which the country is divided on a basis of physiog-raphy, and arranging them according to their popula-tion density one finds that the typhoid mortality risesas population density decreases, until we reach a popula-tion density of 50 persons per square mile. Below thatpoint the relations of typhoid to population density are,as might be expected, quite irregular. (See Table II.) The experience of Maryland supports the general indica-tions of these figures. There is but one large city in theState. The inhabitants of Baltimore are half of the totalpopulation of the State. There are but two other townshaving as many as 8,000 inhabitants. It may be fairly saidthat the population of the State is equally divided betweenrural and urban conditions. The ratio of typhoid mortalityis 1 to in favor of Baltimore, a poorly-sewered city, sup-plied with unfiltered water from an extensive and unprotectedwater-shed. 64 ANNUAL REPORT OF THE. >u>.ini, 5T «a 3 *~ 0 :r »» !.l m .-<^.w «?«•-• <*?• % 5 ?* w £&» 1--X I? V* ©Soo 2/ S l* s Co 0° , ! V <« ^) AtElage Population plioi^ MovTaltft, An- TV /l/lo-T. 3^ .
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