'Defining one's position' is a political practice of modern days, generally resorted to either by gentlemen who have no other good chance or prospect of bringing themselves to the special notice of the public, as a sort of advertisement that they are in the market, or by other gentlemen who contemplate making a dodge from one side in politics to the other. It is done either orally or in writing; by a speech in Congress or at some public meeting; or by a long letter, published in some newspaper, the editor of which is always glad of something to fill his columns. The highest art in 'defining one's position' is to leave it more indefinite than it was before, so that any future contingency may be taken advantage of. [J. Inman.]
The Barnburners' Mass Meeting, to non-respond to the nominations of Cass and Butler, will take place in the Park at 5 this afternoon, and be addressed by John Van Buren, B. F. Butler, Sedgwick, Field, Gen. Nye, &c. &c. We regret that unavoidable absence at Philadelphia will deprive us of the pleasure of hearing these gentlemen "define their position," especially Prince John, who has the reputation of being the most straight-forward, plain-spoken, flat-footed 'Burner in the country. It is a rare treat to hear a man speak who actually means something, and isn't afraid to say it. Let us hear what the Barnburner platform is; and when Gen. Cass comes along (probably to-morrow or next day), the Hunkers will, have a chance to set forth their notions. We shall endeavor to report both.--N. Y. Tribune, June 6, 1848.