PROCEEDINGS 



or THE 



vVASHINGTON ACADEMY OF SCIENCES 



Vol. XI, No. 2, pp. 47-178 April 28, 1909 



STUDIES IN THE AMERICAN 

 BUPRESTIDiE 



BY 

 THOS. L? CASEY 



Published Quarterlt by thl 

 WASHINGTON ACADEMY OF SCIENCES 



Offjce or Publication 



WILLIAMS & WILKINS COMPANY 



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Baltimore, Md. 



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