1486. Report of the State Board of Health and Vital Statistics of Minnesota (Twelfth Report, Fourth Biennial)
1487. Report of the State Board of Health and Vital Statistics of Minnesota (Thirteenth Report, Fifth Biennial)
1488. Report of the State Board of Health and Vital Statistics of Minnesota (Fourteenth Report, Sixth Biennial)
1489. Report of the State Board of Health and Vital Statistics of Minnesota (Fifteenth Report, Seventh Biennial)
1490. Report of the State Board of Health and Vital Statistics of Minnesota (Sixteenth Report, Eighth Biennial)