Dr. F. A. F. C. Went, Pro- 

 fessor of General Botany, Uni- 

 versity of Utrecht, Holland. 

 Tropisms; Growth hormones. 



Dr. W. J. V. Oster- 

 hout, Member of the 

 Rockefeller Institute for 

 Medical Research, New 

 York City. Injury, re- 

 covery, and death in rela- 

 tion to conductivity and per- 

 meability. 



