1912J NATURAL SCIENCES OF PHILADELPHIA. 129 



CELEBRATION 



OF THE 



ONE HUNDREDTH ANNIVERSARY 



OF THE 



FOUNDING OF THE ACADEMY. 



March 19. 



The President, the Hon. Samuel Gibson Dixon, M.D., LL.D., 



in the Chair. 



Three hundred and eighty-two persons present, including delegates 

 from American and foreign corresponding societies and institutions. 



The President introduced the Hon. Rudolph Blankenburg, 

 the Mayor of Philadelphia, who welcomed the delegates and 

 guests to the city. 



After brief instructions from the Recording Secretary, the dele- 

 gates responded to the names of the societies and institutions repre- 

 sented by them as they were called by the Corresponding Secretary } 

 their letters and addresses being handed to the President. 



After announcements by the Recording Secretary, the President 

 read an Historical Address. 1 



The routine of a stated meeting was then proceeded with in the 

 belief, as was explained by the President, that an illustration of the 

 formula by means of which the Academy had transacted its business 

 as a society for one hundred years would be of interest to those 

 familiar with the results which made the present celebration worth 

 while. 



The minutes of the last meeting and the minute of the first Record- 

 ing Secretary, Dr. Camillus Macmahon Mann, dated March 21, 1812, 

 defining the foundation, were read. 



Additions to the museum and library were announced. 



The Corresponding Secretary reported on letters received in 

 connection with the centenary and others. 



1 The Mayor's Welcome, the President's Address, and other contributions to 

 the sessions will be published in the quartc Commemorative Volume (the 

 fifteenth of the Journal). 

 9 



