viii PROCEEDINGS OF THE CENTENARY MEETING. 



Entertainment. 



Robert G. LeConte, M.D. Daniel M. Barringer 



Albert P. Brubaker, M.D. Herbert Fox, M.D. 



Edwin I. Simpson Henry Winsor, M.D. 



Henry Tucker, M.D. Francis X. Dercum, M.D., Ph.D. 



Hon. Charlemagne Tower William D. Winsor 



Roland G. Curtin, M.D. Thomas G. Ashton, M.D. 



Francis E. Bond Walter Horstmann 



Witmer Stone, A.M. Charles Z. Tryon 



Finance. 



Hon. Samuel Gibson Dixon, M.D., LL.D. 

 George Vaux, Jr. Walter Horstmann 



Edwin S. Dixon Henry G. Bryant, LL.B. 



George S. Morris John Cadwalader, A.M., LL.D. 



A formal announcement of the occasion was mailed in January, 1912, to 

 correspondents and scientific institutions throughout the world by the Corre- 

 sponding Secretary, J. Percy Moore, Ph.D. : 



The Academy of Natural Sciences of Philadelphia founded in the year eighteen hundred and twelve 

 for the cultivation of the natural sciences, in March, nineteen hundred and twelve, will have completed 

 one hundred years of active devotion to this purpose. 



For the adequate celebration of its centenary anniversary the Academy will call in convention at its 

 Hall the learned men and institutions of the world its collaborators. 



The Academy has the honor to invite to be present at this event, which will take 



place at Philadelphia on Tuesday, Wednesday, and Thursday, the nineteenth, twentieth, and twenty-first 

 of March, nineteen hundred and twelve. 



As will be seen from the letters published in connection with the proceedings, 

 the responses have been most gratifying. Many of these documents are beautiful 

 specimens of illumination and chirography. The appointment of one hundred 

 and forty-seven delegates by corresponding societies and institutions was also 

 a demonstration of the practical interest taken by the scientific world in the 

 occasion. 



Cablegrams and letters of congratulation and appreciation continued to be 

 received after the commemorative meeting had adjourned. 



On the recommendation of the Publication Committee it was decided to 

 issue in connection with the celebration an Index to the complete series of the 

 Proceedings and Journal, a detailed history of the Academy, and a com- 

 memorative quarto volume (the fifteenth of the Journal) to consist of the 

 Proceedings of the Sessions and a collection of adequately illustrated memoirs 

 contributed by members and correspondents. 



The sessions extended over three days: the 19th, 20th, and 21st of March. 

 The first was held on the evening of Tuesday, the 19th, because that was the 

 time of the stated meeting of the Academy, but the 21st was the actual date of 

 the anniversary. 



