Printer's device on title-page. With this are bound the author's Specimina philosophiæ and Passiones animæ, (Amstelodami, 1672) together comprising the fifth ed. of his Opera philosophica; Willems, ...
"The history and purpose of the edition are explained at length in the companion volume, Introduction to Newton's Principia [by I. B. Cohen] published simultaneously with these two text volumes" ...