Philadelphia, April 15, 1861. To the president of the United States. : The unparalleled event of the past week has revealed to the citizens of the United States, beyond question or possibility of doubt, that a peaceful reconciliation under the form of our Constitution, is repelled and scorned, and that secession means, in the hearts of its supporters, both treason and war against our country and nation. We, therefore, the undersigned, loyal citizens of the United States and inhabitants of the city of Philadelphia, responding to the proclamation of the president of the United States, hereby declare our unalterable determination to sustain the government in its efforts to maintain the honor, the integrity and the existence of our national union ...