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SACE END< 



The date shows when thls volume was taken. 



To rcnew Ihls book copy tlic call No. and give to 



the Hbrarian^ 



HOME USE RULES. 



All Books subjeet to Racsll 



All books must be 

 returned at end of col- 

 lege year for inspec- 

 tion and repatrs. 



Students must re- 

 turn all books before 

 leaving town. Officers 

 should arrauge for 

 the return of books 

 wanted during their 

 absence from town. 



Books needed by 

 more than one person 

 are heldon the reserve 

 list. 



Volumes of periodi- 

 cals and of pamphlets 

 are held in the hbrary 

 aa much as possible. 

 Por special purposes 

 they are given out for 

 a limited time. 



Borrowers should 

 not use their library 

 privileges f or the bene- 

 fit of other persons. 



Books of special 

 value and gift books, 

 when the giver wishes 

 it, are not allowed to 

 circulate. 



Readers are asked 

 to report all cases of 

 books marked or muti- 

 lated. 



Do not deface books by merks and wrltlns. 



\Xlt*i. 





Clavls novl hymenopterorum systematis, a 



■ 3 1924 018 337 976 



