PROCEEDINGS 



OF THE 



AMERICAN ACADEMY 



OF 



ARTS AND SCIENCES. 



NEW SERIES. 

 Vol. XV. 



WHOLE SERIES. 

 Vol. XXIII. 



FROM MAY, 1887, TO MAY, 1888. 



SELECTED FROM THE RECORDS. 



BOSTON: 

 UNIVERSITY PRESS: JOHN WILSON AND SON. 



1888. 



