A treatise by Salmasius (Saumaise) in defense of Usury. 8vo. 1638 The treatise of Comenius entitled “A golden method for the mastery of four languages” (Latin, German, French, and Italian). 8vo. 1642 This had a great popularity. The complete works of Grotius. 8vo. 1642 Various reissues of the different works of Heinsius. 12mo. 1642 The Greek Commentaries of Salmasius. 8vo. 1643 “L’Illustre Théâtre de Corneille.” This edition, printed in 1644, bears the Elzevir imprint. It is probable, however, that like the “Jouxte” issue of the “Cid,” it was unauthorised. 12mo. 1644 “De la Sagesse,” by Charron. 12mo. 1646 This had been issued in Paris in 1592. The author died in 1603. “Lettres Choisies du Sieur de Balzac. Suivant la copie imprimée à Paris.” 12mo. 1648 A Greek version (attributed to Hierotheus, abbot of Cephalonia) of the Confession of faith of the Reformed Church. 4to. 1648 Further Treatises of Saumaise. 8vo. 1648 “Defensio Regio pro Carolo I.” by Saumaise. 8vo. 1649 A third edition, revised by the author, was issued in 1652, by the Amsterdam House. “Histoire du ministère d’Armand Jean du Plessis, Cardinal Duc de Richelieu,” etc. 4 vols. 12mo. 1650 “Les Oeuvres Diverses” du Sieur de Balzac. 12mo. 1651 The firm of John and Daniel Elzevir continued for three years, from 1652 to 1655, during which time it published fifty-four works. The list includes an increasing proportion of light literature. I cite a few titles: