UNIVERSITY OF ILLINOIS 



May 30, too 2 



TUTS IS TO CERTIFY THAT THE THESIS PREPARED UNDER MY SUPERVISION BY 



Elmer Try on Ebersol 



ENTITLE I) 



"Water as a Factor in Plant Growth" 



IS APPROVED BY ME AS "FULFILLING THIS PART OF THE REQUIREMENTS FOR THE DEG llEE 



OF Bachelor of Arts in the College of Science 



0J> ^JtetL 



HEAD OF DEPARTMENT OF 



554 1 3 



