824 PROCEEDINGS OF THE AMERICAN ACADEMY 



Six hundred and eighty-eighth Meeting. 



February 9, 1876. — Monthly Meeting. 



Professor Peirce in the chair. 



The Corresponding Secretary announced that the Rumford 

 IMedal would be ready for presentation to Dr. Draper at the 

 next meeting. He also called attention to the Statutes as 

 revised, copies of which he presented in print. 



The following papers were presented : — 



" On the Effect of Thin Plates of Iron as Armatures to 

 Induction Coils." By Professor John Trowbridge. 



" On a New Form of Mirror Galvanometer." By B. O. 

 Peirce. 



" On the Solar Motion and Stellar Distances." By Pro- 

 fessor T. H. Safford. 



" On some New Forms of Iron Viaducts." By Professor 

 William Watson. 



" On two New Machines used in the Construction of Tidal, 

 Coast, and Harbor Works." By Professor Watson. 



" On the Occurrence of Odoriferous Glands in the Walk- 

 ing-stick." By Professor S. H. Scudder. 



" On the Equal Roots of the Principal Equations of the 

 Circular Perturbations of the Planets as not affecting the Sta- 

 bility of the System." By Professor Benjamin Peirce. 



Six hundred and eighty-ninth Meeting. 



March 8, 1876. — Stated Meeting. 



The Academy met at the house of Mr. John A. Lowell. 



The President in the chair. 



The Corresponding Secretary read letters from Messrs. 

 Ramsay, Sclopis, Godkin, and Adams, accepting their elec- 

 tion as members of the Academy. 



Voted, To adjourn this meeting at its close to the second 

 Wednesday of April, and to postpone the stated business of 

 the meeting until then. 



The Chairman of the Ruraford Committee then introduced 



