(1) ‘Philosophia Universalis, vulgo Metaphisica a Magistro Hugone Smith dictatæ et a me Roberto Trott[ero' scriptæ].’ (2) 'Philosophia moralis vulgo Ethica, a Magistro Hugone Smith et a me Roberto Trottero diligenter conscriptæ.’ These works, begun Dec. 12, 1664, and ended June 15, 1665, are divided into books, and contain many disquisitions, De summo bono, De ente possibili et actuali, De signo et signato, De gaudio et tristitia, De lege positiva humanæ, De justitia, etc. (3) 'Summa Ethicorum Aristotelis.’ The Summa ends with Book v. c. 11 of the Ethics.