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Transactions of The Academy of Science of St. Louis. 



VOL. XVI. XO. 2. 



[No. 1, soon to appear, contains report ol 50th anniversary.] 



NOTES ON A COLLECTION OF MOLLUSKS FROM 

 THE VICINITY OF ALPENA, MICHIGAN. 



FRANK COLLINS BAKER. 



Issved, May 21, 1906. 



