 A Second Edition of the work was completed by a legal scholar and contemporary of Cooley's, Alexis C. Angell, in August, 1891.A third edition was published in Boston by Little, Brown and Company in 1898.In 1868 Cooley published "A Treatise on the Constitutional Limitations Which Rest Upon the Legislative Power of the States of the American Union", in which he analysed the creation of state constitutions and the enactment of laws.