/ 
45 
9. On the Geographical Distribution of Fishes, as bearing 
upon their Affinities and Systematic Classification, by 
Louis Agassiz. 
. On the Discussion of Magnetic Observations made at 
Girard College Observatory in the Years 1840-1845, 
Parts VIL, VIIL, and IX.; Vertical Force; Inves- 
tigation of the Eleven-year Period of the Solar Diur- 
nal Variation and Annual Inequality, and of the 
Influence of the Moon. 
11. Description of an Anemograph designed for the Univer- 
sity of Mississippi, by F. A. P. Barnard. 
12. On Materials of Combustion for Lamps in Light-houses, 
by Joseph Henry. 
13. On Photographs of the Solar Spectrum, by Lewis M. 
Rutherfurd. 
14. On Tangencies of Circles and Spheres, by J. G. Bar- 
nard, 
15, On Observations of the Planet Venus near the Times of 
her Inferior Conjunction, September 28, 1863, and 
subsequently, by Stephen Alexander. 
16. Brief Note on the Forms of Icebergs, by Stephen 
Alexander. 
17. Memoir of the late Henry Fitz, by Lewis M. Ruther- 
: furd. : 
18. On the Distribution of certain important Diseases in the 
United States, by Augustus A. Gould. 
19. On the Integration of Differential Equations of the first 
Order and higher Degrees, by Theodore Strong. 
Criticism on the Forms of Ships, by Captain J. Cole. 
(Presented by Theodore Strong.) 
On the Light visible on the Moon’s Surface, and that 
- seen adjacent to her Edge, when the Sun is either 
partially or totally eclipsed, by Stephen Alexander. 
— 
J) 
