2. Slavery exists in most of the southern states. In Pennsylvania, by the act of March, 1780, for the gradual abolition of slavery, it has been almost entirely removed in Massachusetts it was held, soon after the Revolution, that slavery had been abolished by their constitution; 4 Mass. 128; in Connecticut, slavery has been totally extinguished by legislative provisions; Reeve's Dom. Bel. 340; the states north of Delaware, Maryland and the river Ohio, may be considered as free States, where slavery is not tolerated. Vide Stroud on Slavery; 2 Kent, Com. 201; Rutherf. Inst. 238.