'.mi:).] 



PUBLIC DOCUMENT — \o. 31. 



179 



ivprcsoiitiiij^ them p-a])hic'ally. In Fig. 3 arc shown three 

 curves, each representing the variation in one of the lots meas- 

 ured for annual growth. These enrves hring out more foreil)ly 

 than the ai'ilhnietieal averages the remarkable differences in 



Fig. 3. 



growth between the different lots, more especiallj between the 

 trees on ^larianna and those on the other two stocks. 



Just in ])assing it may be observed that the two lots on Amer- 

 icana and on Waylaud have behaved nmch alike in all respects 

 from the beginning, while the lot on Marianna roots has shown 

 the most marked changes. 



