On tlie Manurial Effect of Calcium Cyanainide. 



lOI 



The plants were harvested May 2 1 with the following result, g. : 



Average of four parallel pots. 



i). With sandy soil the maximum harvest was obtained from the pots B. In the pots B, the 

 average weight of one plant was 2.5 g. (20/8=2.5) and average yield from one kilo, soil amounted to 

 1.27 g. (20/15.75= 1,27), while one plant of the corresponding pots in the preceding e.xperiment with 

 a large supply of nitrogen amounted to 3.1 g. (21.6/7 = 3.1) and one kilo, soil produced 1.51 g. 

 (21.6/14.27 = 1.51). 



