96 TRANS. OF THE ACAD. OF SCIENCE. 
tical rod; and the loss = ve ability of the fly-wheel to resist, in 
a greater de ee, the force of gravity, as it losgs its velocity, is 
beautifully espns ee the increased velocity of the revolu- 
tions of the ring, which thus ee an increase of centrifugal 
force to aid in sustaining it.” 
Messrs. F. B. Meek, of Albany, N. Y., and Henry Pratten, of 
Springfield, Ills., were elected Corresponding Members. 
August 25, 1856. 
Vice President Houmes in the chair. 
A letter was read from W. G. Binney, Esq., of Germantown, 
Pa., requesting an exchange of the Land Shells of Missouri and 
the eager States for the Marine Shells of the Atlantic coast. 
eterred: ie * Lg’ ne hens that the rans be 
tates 9 | were feel = from 2 Pier: ‘ L. Riddell, ett Or- 
eans, La, and Mr. ‘ones Reine sf, exinghell Bs. elected 
