by Chicago (Ill.). Department of Health

1911

by Chicago (Ill.). Department of Health

1911

by Chicago (Ill.). Department of Health

1911

by Chicago Public Library

1924

by Chicago. Department of Health

1919

by Chicago (Ill.). Dept. of Health. School of Sanitary Instruction

1907

by Chicago School of Sanitary Instruction

1908

by Chicago Public Library

1913

by Chicago Public Library

1915

by Chicago (Ill.). Board of Health

1919

by Chicago (Ill.). Bureau of Statistics

1914

by Chicago Dental Society (Ill.)

1928