Note 10 — NEGRO SERVITUDE IN THE UNITED STATES[A]
Reading edition
"This practice of holding negroes for a longer term than white persons, which lasted for a longer time than had originally been contemplated, since it was allowed to apply to negroes brought into Pennsylvania from other states, bade fair to perpetuate itself and last longer still." Turner, The Negro in Penn., pp. 93, 95, 99-100.