substances found by the analysis of each ash. This wheat 

 was all grown from one lot of seed in different parts of Min- 

 nesota. (47) 



Eote that the heavy seed has more potash and phosphoric 

 acid. 



Composition of the Ash of Heavy and light Weight Wheat. 



In Minnesota Snyder (48) has divided small kernels of 

 wheat into two classes; those small because shrunken, and 

 those well filled though small. As "between small, shrunken 

 kernels and those large end well filled he finds that the 

 former contain the higher per cent of nitrogen. But be- 

 tween small well filled and large well filled kernels 

 the latter contain the higher per cent of nitrogen. 



A balancing of the foregoing results and opinions 

 seems to leave little room for the contention that there is 

 no advantage in large seed. Conceding this, we come to the 

 question as to the reason for the superiority of large heavy 

 seed. 



Endeavoring to answer this several writers make certain 

 statements as if the reasons given were established but none 

 submit experimental proof. The reason given is that it is 

 on account of the larger supply of nutrients for the young pla.n1. 



