I ALTOS KLOl k HILLS.- -('apt. Sparks* addition to hi* mills will increase their capacity from to 760 barrels per day. The capacity of the now ItolJer mill is ‘260 barrels per day, these two improvements, therefore, add 600 barrels per day to the capacity •»f Alton flour mills. The total capacit y of all the mills in the city is over 2.0UU barrels per day.