The doctrine of annuities and reversions : deduced from general and evident principles, with useful tables shewing the values of single and joint lives, &c., at different rates of interest : to which is added, a method of investigating the value of annuities by approximation, without the help of tables : the whole explain'd in a plain and simple manner, and illustrated by great variety of examples / - Simpson, Thomas, (Printed for J. Nourse,, 1742)