^^ 



Transactions of The Acadimy of Science of St. Louis. 



VOIi. XX. No. 7. 



TITLE-PAGE, PREFATORY MATTER AND INDEX. 

 RECORD FROM JAN. 1, 1911, TO DEC. 31, 1911. .; 



PAPERS CONTAINED IN VOLUMES XI TO XX. 



Issued April 17, 1912. 



