432 
PROCEEDINGS OF 
Exercises of the Seventh Meeting, Friday Morning, April 5. 
Hon. Benjamin F. Butler, of New York, in the chair. 
Prayer, by the Rev. Dr. Bacon. 
On Lake Superior, embracing an Account of Miscellaneous Observa¬ 
tions on the Geology, Mineralogy, Topography, Scenery, Climate, 
Meteorology, &c., &c., of the Lake.— Professor J. Locke, of 
Cincinnati. 
On the Nebular Hypothesis.— Professor W. A. Norton, of Dela¬ 
ware. 
On the Measurement of Base Lines.— Capi. W. A. Swift , U. S. 
Army. 
On the Design of the Medical Department of the National Institute.— 
Thomas Seivall, M. D., Washington. 
On the evening of Friday, the guests and members assembled at 
the library hall of the Treasury Department, from whence they pro¬ 
ceeded in a body to pay their respects to the President of the United 
States. 
i f . ■- v * : 
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Exercises of the Eighth Meeting, Saturday Morning, April 6. 
(Held at the Unitarian Church , near the, City Hall.) 
Hon. Joseph R. Ingersoll in the chair. 
Prayer by the Rev. Septimus Tuston, Chaplain U. S. Senate. 
On the Modern Historical Schools of France and Germany, and the 
Philosophy of History.— F. J. Grund, of Philadelphia. 
Notes on American Polythalamia .—Professor J . W. Bailey , of the 
Military Academy , West Point. (Read by A. D. Bache.) 
On the Scientific Character and Researches of the late James Smithson, 
—Professor Walter R. Johnson , of Philadelphia. 
On the Effects of Large Doses of Sulphate of Quinine on the Human 
System, as a Remedial Agent.—Dr. W. PL Van Buren, U. S . 
Army. 
Description of a Meridian Circle for the Observatory of Georgetown 
College, D. C .—Rev. Professor James Curley , of the College. 
(Read by A. D. Bache.) 
