TRANSACTIONS 



OF 



THE ACADEMY OF SCIENCE 

 OF ST. LOUIS. 



VOL. XX. 

 JANUARY, 1911, TO DECEMBER, 1911. 



PUBLISHED UNDER DIRECTION OF THE COUNCIL. 



LIBRARY^ 



NEW YORK 



BOTANICAL 



GARDEN 



ST. LOUIS. 

 NIXON-JONES PRINTING CO. 



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