48 institttp: notes. 



Pennsylvania Railroad as rodman and worked his way up 

 until in 1891 he was made Superintendent of the Central Divi- 

 sion of the P., B. & W. R. R. Mr. Bechdolt was elected a 

 member of the Institute in 1896. 



A member hands in the following : The crushed and lifeless 

 body of a firefly was found to emit light for fully fifteen min- 

 utes after it was killed. At the time of death the fly was 

 emitting almost constant light in its wild efforts to escape. 

 How does this fit in with the various theories of the light of 

 the firefly ? 



The Herbarium of the Institute is in process of revision 

 and rearrangement. This is being done in conjunction with 

 the preparation of a List of Delaware County Plants which 

 will be published in the next number of the Proceedings. 



As will be seen by the Minutes of Meetings the Institute 

 is in the midst of its winter campaign of scientific work, 

 which so far has been eminently successful. The good attend- 

 ance at our meetings is a source of satisfaction. 



The veiy mild Winter we have so far experienced is in 

 striking contrast with that of two, three and four years ago. 

 Although the swing of the pendulum may not be very regular, 

 its average is practically constant. 



The sun dial presented to the Institute by Jacob B. Brown 

 has been mounted as a permanent improvement on the south 

 side of the building. It attracts much attention and is both 

 useful and ornamental. 



The Chimney Swift ( Chcctura pclagica ) was observed near 

 Media during the past season until October 13th. Dr. B. H. 

 Warren has seen these birds in Chester county as late as the 

 20th of that month. 



KRRATX^M : 

 Page 24, 13th line from holtom — 



For " Brings ns to the 46th day," read " Brings lis to the 4Stli day." 



