8 



No. 9. Bone-black and muriate of potash. 

 " 10. Nitrate of soda, bone-black and muriate of potash. 

 " 1] . Land plaster. 

 " 12. Nothing. 

 " 13. Barnyard manure. 

 " 14. Lime. 

 " 15. Nothing. 



To each plot where used the following quantities were supplied: 

 nitrate of soda, 8 pounds ; dissolved hone-black, 16 pounds ; muriate 

 of potash, 8 pounds; land plaster, 8 pounds; lime, 8 pounds; barn- 

 yard manure, 32 cubic feet. 



The composition of the barnyard manure used was of necessity 

 unknown at the time of use. It was, however, carefully sampled 

 by throwing one side every tenth fork-full in loading, thoroughly 

 mixing what was thus thrown out, and taking in each case about a 

 solid cubic foot for analysis. The results of each analysis so far as 

 samples have been secured will be found under the appropriate 

 experiment. The weights-^used were not determined as facilities for 

 weighing were not available in most cases. The manure was used 

 at the rate of five untrodden cords per acre. 



The fertilizers used were carefully sampled and analyzed with 

 results shown in the tables below : 



Nitrate of Soda. 

 Moisture at 100° C, 3.22 per cent. 



Nitrogen, 15.03 



Sodium oxide, 53,44 " 



Insoluble matter, .19 " 



Dissolved Bone-black. 

 Moisture at 100° C, 

 Organic and volatile matter, 

 Total phosphoric acid, 

 Soluble, 



Reverted " " 

 Insoluble " " 

 Insoluble matter, 



Muriate of Potash. 

 Moisture at 100° C, 

 Potassium oxide, 

 Sodium oxide. 

 Chlorine, 

 Insoluble matter, 



