There yet remains a subject which, though often urged, still continues to demand our serious attention; we allude to the most proper means of extending the principles of just and equal liberty amongst mankind: and as we profess to assume no other powers than those of persuasion and convincement, founded on the unerring basis of truth and justice, we wish you duly to advert to the magnitude of the cause in which we are engaged, to persevere with patience and fortitude in your applications to legislative bodies and courts of justice, for the relief of our unfortunate African brethren, and to continue to enlighten the public mind, by spreading as much as possible, all kind of useful information on the subject: that thus we may, in every form, and on every occasion, be ready to plead the cause of the oppressed, in the language of persuasion and of truth. And then we shall have done our duty; and then we may, in humble confidence, look up for the blessing and protection of the great Father of all, _whose ways are just and equal, and who hath made of one blood all nations of men_.[5] _To the Society for promoting the Abolition of Slavery, &c._ THE Convention of delegates from the Abolition Societies established in different parts of the United States, assembled at Philadelphia, congratulate their constituents on the general progress of their objects since last meeting, and on the union of sentiment, and harmony of deliberation, which has prevailed in all their proceedings. The assembling in Convention, at proper intervals, has produced so many advantages in combining the views and operations of the friends of emancipation throughout the United States, that we are persuaded you will unite with us in opinion, that it is expedient that another Convention of delegates from the several Abolition Societies, be held in this city on the first Wednesday of June, in the year one thousand eight hundred. The alteration in the period of meeting we have adopted under a consideration of the peculiar situation of our country, and the state of the objects which have hitherto occupied our attention; but, we earnestly request, that a general representation, and a punctual attendance, may take place at the time recommended.