An Explanation of the Underlying Principles, with Tables and Instructions for Ascertaining the Present Value of Dower and Curtesy Rights, Life Estates, Annuities, Vested and Contingent Remainders, Upon the Northampton, Carlisle, Actuaries, American Experience, American Men Ultimate and Other Tables of Mortality at Various Rates of Interest, with a Brief Analysis of the Inheritance Tax Laws of the Various States and Territories