A scheme for a general taxation on property, income, and trade, and for saving expence in its collection : and to afford the means of bringing about reciprocal free trading : to which is added, a proposal addressed to Mr. Secretary Stanley, on the subject of the abolition of Negro slavery : with a plan for carrying that object into effect, to the satisfaction of the abolitionist, the planter, and the slave population. - Bull, John (Printed for the author, 1833)