Now We are Positive Here's a Rascal Jackson, the foreman in Sickles' Cooper Shop, who discharged young Rockman because he was a Democrat, and dared avow his preference for Douglas, has hired some penny-a-liner to write a communication for him, which he publishes in Saturday's Gazette. We have taken the trouble to make some enquiries regarding this chap, and have yet to see the man who is prepared to say anything good of him. We have talked with the coopers Davenport who are acquainted with this Jackson, and they all give him the reputation of being an ignorant, selfish, quarrelsome and treacherous scamp, who delights to play the tyrant whenever the opportunity is offered him. The foreman of the coopershop in which Rockman is at work, informs us that the young man makes a very superior barrel, fully equal those of any man in the shop. We think we have the real cause for the charge that Rockman was an inferior workman. Mr. Sickles is a gentleman who would not allow of any man being discharged from his employ because he happened to differ from him in politics, and Jackson, knowing Mr. Sickles would be offended and probably kick him out of the shop, got up the false excuse that Rockman could not make a good barrel. And now for that hot paragraph. Jackson's amanuensis says: If again an occasion shall unwelcomely occur, when I may feel called upon to lay down my "adze" to take up the pen for this purpose of defending myself against the dastardly attack of this scurrilous journal, I will put on my armor, and its manager shall be thrice welcome to the quill of T.A. JACKSON." Good Lord deliver us! -what a blood thirsty threat. The gallant Knight of the "Adze" is going to buckle on his "armor," and arming himself with "quill" (from the back of a fretful porcupine, we suppose,) give us a devil of a thrashing. We'd a little rather you would not, Tom! (Excuse our familiarity-we suppose you enjoy the euphonious cognomen of Tom, short for Thom-ass.) Take it lightly. my boy. We have only been in the newspaper business ten or twelve years, and may not be able to defend ourselves against such experienced writers as your Knighthship. But, Tom, we do not know that we can afford the space to notice your "crusher" if there, and will therefore close our article with request that you will let us down easy.