v^ 



This book is due on the date indicated 

 below and is subject to an overdue 

 fine as posted at the circulation desk. 



EXCEPTION: Date due will be 

 earlier if this item is RECALLED. 



NATURAL R 



LI3F 



[SOURCES 

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DEC 1 ^ ^^^B 



m . 



DEC . . .., 

 Otto 



150M/01 -92— 941680 



