Card of Invitation. You are cordially invited to be present at, and to take part in the exercises of, a SANITARY CONVENTION to be held in the City Hall, in the city of Flint, Michigan, January 25 and 26,1881. T Jie sessions will begin at 2 P. M. and 7 P. M., January 25 and at 10 A. M., 2 P. M., and 7 P. M., January 26. During each session of the Convention there will be one or more addresses or papers on some subject of general interest per- taining to public health, each paper to be followed by a discussion of the subject treated. This Convention is held under the auspices of the State Board of Health, in accordance with invitation received from citizens of Flint, arrangements having been made by a local committee of citizens, acting with a committee of the State Board of Health. On behalf of the committees of arrangements. EEL^. COOSH^EL, ZxZC. ID., Secretary of the Convention, Flint, Mich.