The lower three lines of figures in the table show the 

 chemical composition of the material used on the various plots, 



► 



w 



ft) 



N 



S 

 ft) 



C| 



35 



« 



o 

 o 



6 

 •a 

 w 



M 

 t> 



!*) 

 T3 

 B 



ft) 



a 



H 



thus No. 13 had a mixture which by analysis showed 10.5% 

 of phosphoric acid, 10% of potash and 2.8% of nitrogen. 



5 



