The Academy of Natural Sciences 



OF 



Philadelphia 



PROCEEDINGS OF THE MEETING 



HELD MARCH 19, 20 AND 21, 1912, IN COMMEMORATION OF THE 



ONE HUNDREDTH ANNIVERSARY OF THE FOUNDING 



OF THE ACADEMY 



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tfSTITCTEJ^ 

 MDCCCXH 



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.MDCCCXVII 



PHILADELPHIA 



Published by the Academy 



1912 



