PECORDS OF MEETINGS. 745 



The following papers were read by title : — 



"• On Isothermal Systems of Conies with Parallel Axes." B}- 

 B. O. Peirce. 



"On the Magnetic Properties of Hardened Cast Iron." By 

 B. O. Peirce. 



" The Atomic Weight of Strontium." By Theodore W. 

 Richards. 



Nine hundred and fifty-fifth Meeting. 



February 8, 1905. 



The Academy met at Ellis Hall. 



The President in the chair. 



The Corresponding Secretary read the announcement of the 

 opening of the competition for the De Candolle Prize, for the 

 best monograph on a genus, or- a family of plants. 



The following communications were read: — 



Biographical Notice of the late George Frisbie Hoar. By 

 T. W. Higfcrinson. 



" Swan Island in the Caribbean Sea, with a List of Plants 

 found upon it." By S. P. Sharpies. 



"A Machine for Averaging Curves for the Purpose of Har- 

 monic Analysis." By H. H. Clayton. 



The following papers were presented by title : — 



"Temporal Clauses in Herodotus." By H. D. Brackett. 

 Presented by H. W. Smyth. 



Contributions from the Gray Herbarium of Harvard University, 

 New Series, No. XXIX. " New Plants from the Islands of 

 Margarita and Coche, Venezuela." By J. R. Johnston. Pre- 

 sented by B. L. Robinson. 



Nine hundred and fifty-Sixth Meeting. 



Stated Meeting. — March 8, 1905. 



The President in the chair. 



The Corresponding Secretary read letters from John R. 

 Freeman, "On the Subsidence of the Land in Boston Harbor and 



