4S'2 PROCEEDINGS OF 



Exercises of the Seveiith Meeting, Friday Morning, April 5. 



Hon. Benjamin F. Butler, of New York, in the cliair. 

 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. — Capt. W. A. Swift, U. S. 

 'Army. 



On the Design of the Medical Department of the National Institute, — 

 Thomas Seivall, 31. D., fVashinglon. 



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. 



Exercises of the Eighth Meeting, Saturday Morning, April 6. 

 (^lield 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 tlie 



Philosophy of History. — F. J. Grund, of Philadelphia. 

 Notes on Anierican Polyihalamia. — Professor J. IV. Bailey, of the 



Military Academy, (Vest Point. (^Read by A. D. Bache.) 

 On the Scientific Character and Researches of the late James Smithson. 



— Projessor Walter R. Johnson, of Philadelphia. 

 On the Eflects of Large Doses of Sulphate of Quinine on the Human 



System, as a Remedial Agent. — Dr. IV. H. fan Burcn, U. S. 



Army. 

 Description of a Meridian Circle for the Observatory of Georgetown 



College, D. C. — Rev. Professor James Curlcy, of the College. 



(Read by A. J). Bachc.) 



