Airy, Sir George Biddell. No. 5 in **E,182.12 On the disturbances of pendulums and balances, and on the theory of escapements. From the Transactions of the Cambridge Phi- losophical Society. Cambridge [Eng.]. Printed by J. Smith. 1828. 24 pp. Plate. 8°.
This card was printed at the Boston Pxbdlic Library, March 30, 1926. 382 — Pendulum.