THE WORK OF CHRISTIAN

HUYGENS

OF ZUYLICHEM, SON OF CONSTANTIJN

THE PENDULUM

CLOCK

GEOMETRIC DEMONSTRATIONS

CONCERNING THE MOTION OF PENDULUMS

AS APPLIED TO CLOCKS.

FROM THE ROYAL LIBRARY original: "BIBLIOTHECÆ REGIÆ"; likely a library acquisition stamp or ownership mark.

AT PARIS,

From the shop of F. MUGUET, Printer to the King and to the Most Illustrious Archbishop,

on the Street of the Lyre original: "viâ Citharæ"; referring to the Rue de la Harpe, a famous center for printing and bookselling in 17th-century Paris, at the sign of the Three Kings.

1673.

BY ROYAL PRIVILEGE.

A "privilege" was a legal monopoly granted by the King (Louis XIV) to a printer or author, protecting the work from piracy for a set number of years.