"The work ... consists of a translation of the entire fifth volume of Gerhardt's Die philosophischen schriften von G.W. Leibniz, subentitled 'Leibniz und Locke', consisting of an introduction by Gerhardt, several short pieces on Locke's Essay and the New essays on human understanding; and of an appendix containing a translation of other short pieces of Leibnitz bearing on the subjects discussed in the New essays or referred to therein."--Translator's pref.