...from Gov. Letcher to Lewis D. Vail, Esq., of Philadelphia, upon Pennsylvania's nullification of the fugitive slave law. Gov. Letcher felly demonstrates that the unconstitutional and obnoxious laws of Pennsylvania are still in full effect and force, and that, not withstanding Mr. Vail is "proud that he is a citizen of this good old State, the keystone of the arch, "yet he is lamentably ignorant of the legislat...