OF ARTS AND SCIENCES. 417 



Voted, To appoint Professor Alplieus Hyatt a delegate to 

 represent the American x'Lcademy at tlie meeting of the Royal 

 Society of Canada. 



The President aitnoimced informally that, at the annual 

 meeting of the Academy, the Rumford Committee would 

 recommend that the Rumford Medal be awarded Professor 

 Henry A. Rowland for his researches on light and heat. 



The following papers were presented : — 



On the Collection of Meteorites at Harvard College. By 

 Josiah P. Cooke. 



Photographs of the Infra Red Portion of the Spectrum. 

 By William H. Pickering. 



The following papers were presented by title : — 



Contributions to American Botany. 1. Characters of and 

 Notes upon North American and INIexican CompositcC. 

 2. Characters of various other North American Gamopetalse. 

 By Asa Gray. 



A Simple Method of Correcting the Weight of a Body for 

 the Buoyancy of the Atmosphere when the Volume is un- 

 known. By Josiah Parsons Cooke. 



On the Vapor Density of the Chloride, the Bromide, and 

 the Iodide of Antimony. By C. P. Worcester. 



Notes on some Species in the Third and Eleventh Centuries 

 of Ellis's North American Fungi. By William G. Farlow. 



Contributions to American Botany. By Sereno Watson. 



On the Heat produced in Iron and Steel by Reversals of 

 Magnetization. By John Trowbridge and Walter N. Plill. 



On the Heat produced in Iron and Steel by Reversals of 

 Magnetization. By John Trowbridge and Charles Bingham 

 Penrose. 



Influence of Magnetism upon Thermal Conductivity. By 

 John Trowbridge and Charles Bingham Penrose. 



Papers on Thermo-Electricity. No. 1. By John Trow- 

 bridge and Charles Bingham Penrose. 



The Electromotive Force of Alloys. By John Trowbridge 

 and E. K. Stevens. 



The Potential of a Shell bounded by Confocal Ellipsoidal 

 Surfaces. By Frank Nelson Cole. 

 VOL. xviii. (n. s. X.) 27 



