13 



RKSULTS OF MEASUREMENTS. 



These measurements indicate that the superiority early shown by 

 the plots which received nitrate of soda was not maintained through- 

 out the season. Thus on July 19, No. 2 is considerably better than 

 No. 5, but by Aug. 21, this difference has nearly disappeared; and 

 again on the earlier date No. 7 is better than No. 9, but on the latter 

 date No. 9 is the better. 



COMPOSITION OF MANURE. 



Moisture at 100° C, 

 Organic and volatile matter, 

 Ash, 



Phosphoric acid. 

 Calcium oxide, 

 Magnesium oxide, 

 Potassium oxide. 

 Nitrogen, 

 Insoluble matter, 



70.160 per cent. 



86.553 " 



13.447 " 



0.553 " 



0.323 " 



0.271 " 



0.614 " 



0.486 " 



11.991 " 



This manure is in composition considerably superior to most of the 

 others used in our experiments which undoubtedly accounts for its 

 relatively better effect on the crop. 



