SECRETARY'S REPORT 189 



STAFF CHANGES 



Scientists who joined the staff during the year are Austin Long, 

 geochemist in the carbon-14 laboratory, and Dr. Adolf Steiner, visit- 

 ing plant physiologist from the University of Freiburg, Germany. 

 Dr. Peter A. J. deLint, visiting plant physiologist, returned to 

 Wageningen, Holland. Kesignations : Dr. R. L. Latterell, cytogeneti- 

 cist, and J. Sigalove, geochemist. 



On Jmie 30, 1964, the Division staff numbered 32 members. 



Respectfully submitted. 



Fred L. Whipple, Z>^recifor. 

 S. Dillon Ripley, 

 Secretary, Smithsonian Institution. 



