Opera mechanica, geometrica, astronomica et miscellanea

...and, having accepted this from nature, he cultivated his intellect beautifully with diligence while still a young man.

If you add to this collection the volume of the posthumous works of Huygens, and the two treatises on Light and Gravity, you will have all the works of Huygens, dear reader original: "B. L." (Benevole Lector).

These items, which are missing here, will be published shortly in the same format as these by the Amsterdam booksellers, the Waesbergiis.