invited.A mathematical problem. If a letter put in the postoflice at Saunemin, 111. 4o minutes before train time requires 80 hours to reach Forrest 10 miles south,! when it ought to reach there in 80 minutes; how long would it take the) present Administration, with her representatives, to get a letter to the moon had we a postal car running to that point, allowing 2 hours in each 24 hours for stopping and drinkin g. i