Opera philosophica.
Edition: Ed. 2, ab auctore recognita.
Publisher: Apud L. Elzevirium
Published: 1650
Place of publication: [Amstelodami
Language: lat
Notes: Half title.

A collection of separate works, each with special t.p. and separate paging, with the addition of 1 prelim. leaf (general half title, with list of contents on verso).

The Epistola ad Voetium has special half title and separate paging.  Cf. Willems, p. 255, no. 1008, note.
Table of contents: value: [t. 1]  Meditationes de prima philosophia.  1654.  Appendix, continens obiectiones qvintas & septimas in Renati Des-Cartes Meditationes de primâ philosophiâ, cum ejusdem ad illas responsionibus & duabus epistolis, vna ad patrem Dinet ... altera ad celeberrimum virum D. Gisbertvm Voetivm.  1654.-  [t. 2]  Principia philosophiae.  1650.-  [t. 3]  Specimina philosophiae; sev, Dissertatio de methodo rectè regendae rationis, & veritatis in scientiis investigandae: Dioptrice et Meteora. 1650.-  [t. 4]  Passiones animae.  1650.