RECORDS OF MEETINGS. 533 



to attend its centenary, and presenting to the Academy the 

 volume, "The History of the Geological Society of London"; 

 from the Acaddmie des Sciences, Agriculture, Arts et Belles- 

 Lettres, of Aix, requesting delegates from the Academy to 

 attend the celebration of the centenary of its Reconstitution ; 

 from the Gesellschaft von Freunden der Naturwissenschaften, 

 notifying the Academy of its fiftieth anniversary. 



The Chair announced the following deaths : — 



Asaph Hall, Class I, Section 1 ; Israel C. Russell, Class H, 

 Section 1; Augustus St. Gaudens, Class HI, Section 4; E. C. 

 Stedman, Class HI, Section 4, Associate Fellows. 



Tlie Chair appointed for Nominating Committee : — 



Charles R. Cross, of Class I. 



Charles S. Minot, of Class II. 



Morris H. Morgan, of Class HI. 



It was 



Voted, To meet on adjournment on the second Wednesday in 

 April. 



Dr. G. H. Parker presented the communication: — 



" The Influence of Light on the Daily Activities of Animals." 



The following papers were read by title : — 



"The Damping of the Quick Oscillations of a Twisted Fibre 

 by the Resistance of the Air and by the Torsional Forces." By 

 B. O. Peirce. 



" Notes on Superheated Steam : I, Its Specific Heat ; II, Its 

 Total Heat ; III, Its Joule-Thomson Effect." By Harvey N. 

 Davis. Presented by W. C. Sabine. 



" The Sensory Reactions of Amphioxus." By G. H. Parker. 



" On Delays before apayvcoplaea in Greek Tragedy." By 

 W. P. Dickey. Presented by M. H. Morgan. 



Nine hundred eighty-first Meeting. 



April 8, 1908. — Adjourned Stated Meeting. 



The Academy met by invitation of Professor Elihu Thomson 

 at the Algonquin Club, 217 Commonwealth Avenue. 

 Vice-President Trowbridge in the chair. 

 There were present forty-nine Fellows and four guests. 



