He published Elementa jurisprudentiae (1629), Descriptio juris et judicii feudalis, secundum consuetudines Mediolani et Normanniae, pro introductione ad juris prudentiam Anglicanam (1634), Descriptio juris tt judicii temporalis, secundum consuetudines feudales et Normannicas (1636), Descriptio juris et judicii ecclesiastici, secundum canones et consuetudines Anglicanes (1636), Descriptions juris et judicii sacri, . . . militaris, . . . maritimi (1640), Juris et judicii fecialis sive juris inter gentes . . . explicatio (1650), and Solutio quaestiones de legati delinqusntis 'judice competente (1657). In virtue of the last two he has the distinction of being one of the earliest systematic writers on international law. He was also the author of a poem, The Dove, or Passages of Cosmography (1613).