Mr. Editor: mucli about bouthern aggression, and the spread of slavery, &c. History tells us that at the comtnenccment of our General ïoverument there were twelve slave States, and one frce State. The slavc States have added threo States to their original nuinbcr, making in all fifteen. - The freo State has added seventeen Status to its original number, making eightcen free States to fifteen slave títatcs. How long at tho abovc rate will it take the slave States to get a majority? Will some of the Republicaus figure this sum out and give us the answer? Perhaps sorae of tho Wide-Awakes will trj thcir hands at it. Try it Boys.