44 
Vill. 
LIST OF PAPERS PRESENTED TO THE 
ACADEMY, 
TO JANUARY 26, 1867. 
1. On the Individuality among Animals, with Reference % 
the Questions of Varieties and Species, by Lous 
Agassiz. 
2. On the Elements of the Mathematical Theory of Quan- 
tity, by Benjamin Peirce. ee 
3. On the Discussion of Magnetic Observations made at 
Girard College Observatory, in the Years 1840-1845, 
Parts IV., V., and VI.; Horizontal Force; Investiga- 
tion of the Eleven-year Period of the Solar Diurnal 
Variation and Annual Inequality, and of the Influence 
: of the Moon, by A. D. Bache. 
4. On the Force of Fired Gunpowder, and the Pree 
to which Heavy Guns are actually subjected in Firing, 
by F. A. P. Barnard. 
5. Reduction of the Observations of the Fixed Stars made 
by J. Lepaute d’Agelet at Paris, during the ef a 
© 1783-4785, with a Catalogue of the corresponding 
, Mean Places referred to the Equinox of 1800, by 
B. A. Gould. 
6. On the Metamorphoses of Fishes, by Louis Agassiz. 
7, On the Saturnian System, by Benjamin Peirce. ae 
_ 8. Notes on the Parallelogram of Forces and on Virtual 
Velocities, by Theodore Strong. 
