al fol a be —s Te os Se uy feOU!vh UY OO hee, Se lL eee
Pendulum.
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. e.
This card was printed at the Boston 5 Pxblic Library, March 30, 1926.
382 — Pendulum.