ProQposed Round Tbln ý)Icusaion of 
              Bird and~ Kamwdl Me~iaatir* 
        (C7;oloaical Society -         Dhoo  ~oc. J9-31, U47q) 
 
                   Aldo Ieopold, CO!;har 
 
 
 
 
 
2, The Poilation Cycle in Albeeta. 
 
3- Tie Us of Sex and     e ti    in i;i A 
 
 
 
4. to~imaC~l dleaios to Reoatio. 
 
 
5. The Inveme Relation of Ansit, n Xeproctive 
   .Suocess. 
 
 
  AieLeopold 
 
 
 
  *1.s, Krtbait, Thompson~, 
 
 
 
('re-ented by (Aesen) 
 
 
P  2rrInton and 
Jo~n TQ. 1lien