Chicago's Population

Chicago, Feb. 19.- In answor to a letter trom the socretary of the Board of Trado tsking lor an estímate of the city's populatlon, Dr. Do Wolf wroto that the school census of 1886 stiowed the city to be piinIng at the rato of 3,076 a month, f rom which he estímulos the populatiou at the present time to be 723,813.