OF ARTS AND SCIENCES. 333 



same income to assist Professor B. O. Peirce in his investi- 

 sration on the conduction of heat in the interior of sohd 

 bodies. It was accordingly 



Voted, That the Treasurer be authorized to pay these ap- 

 propriations from the income of the Rumford Fund. 



Voted, That the sum of two hundred dollars be appropri- 

 ated to defray the expenses of the social meetings of the 

 Academy for the present year. 



Professor Amos E. Dolbear read a paper on Electro-mag- 

 netic Waves. 



Professor W. G. Farlow presented, by title, a paper by 

 Roland Thaxter, entitled, " Supplementary Notes on North 

 American Laboulbeniacese." 



I^ight hundred and thirty-ninth Meeting. 



February 11, 1891. ^Monthly Meeting. 



The President in the chair. 



The Corresponding Secretary read the following letters : 

 from the National Society of Horticulture of France, invit- 

 ing the Academy to send delegates to the Seventh Horti- 

 cultural Congress, to be held at Paris in 1891 ; from the 

 Secretary of the Society of Natural Sciences at Milan, an- 

 nouncing the death of Professor Antonio Stoppani ; from 

 Professor Charles E. Munroe, acknowledging his election as 

 a Fellow of the Academy ; and from Mr. William C. Collar, 

 resigning his Fellowship. 



Professor Mark presented, by title, " A Preliminary Notice 

 on Budding in Bryozoa." 



Eight hundred and fortieth Meeting. 



March 11, 1891. — Stated Meeting. 



The President in the chair. 



In the absence of the Recording Secretary, Professor 

 Haynes was appointed Secretary pro tern. 



