  In his final years, Gassendi relented to pressure from friends and released a major portion of his Epicurean studies to the public, publishing his Latin translation of Diogenes Laertiius's Book X on Epicurus, along with ample commentary, in his Animadversiones of 1649. He continued to work on this interpretive material, however, steadily incorporating philosophical and scientific insights, until his death in the Paris apartment of Montmor in 1655. Montmor, acting as executor, collected this material in manuscript form and with Gassendi's other Parisian friends arranged to have it published as the posthumous Syntagma Philosophicum. The Syntagma is more systematic than the Animadversiones, largely eschewing the sometimes philological character of the earlier commentary and principally discussing logic, the natural sciences, psychology, and ethics from the perspective of what Gassendi deems philosophically, historically, and theologically supportable. His interests in Epicurus are ever-present, not least in the structure of the work, which is divided into a Logic (including his textbook-format Institutio Logica), Physics, and Ethics.  Happily, we have a rather well-rounded picture of Gassendi's intellectual pursuits, on top of his Epicurean projects. Montmor and company had the good sense to bundle the Syntagma together with the better part of Gassendi's other writings (the Animadversiones notably excepted) in six volumes of collected works, the Opera Omnia (Lyon, 1658; Florence, 1727), which includes as well earlier letters on optics and the free fall of bodies, a portion of his voluminous astronomical observations, and a great deal of his correspondence.