:3i2 



TOURNAL OF FORKSTRV 



Temperature and rainfall are of paramount importance in controlling 

 the growth of plants. The daily records of each of these were ob- 



tained from the station of the IT. S. Weather Bureau at Ithaca and are 

 shown graphically. 



To show the relation existing between temperature and rainfall and 

 the height growth of the grades of young trees, the accompanying 

 curves and graphs are presented (figures i and 2). 



