118 



The plots upon which the sulphate of ammonia was used 

 suffered more horn, field-fire or Ulster than any of the others. 

 To sum up the results of this experiment, it appears that 

 the unmanured plots gave the poorest returns, that nitrogen 

 was most effective in the form of nitric acid in nitrate of 

 soda and in the form of organic nitrogen in dried blood, and 

 was least effective in the form of ammonia in sulphate of 

 ammonia. 



Owing to circumstances, it was impossible to have all the 

 plots of the same variety of tobacco. 



Table No. 2, attached, gives the experiment in full. Figure 

 No. 2, which follows this table, shows the appearance of 

 several kinds of tobacco before harvesting. 



