88 MAINE AGRICULTURAL EXPERIMENT STATION. I9OI. 



as it may have been made finer. This disintegration or the 

 working down of the bone is undoubtedly important in render- 

 ing the mineral matters of the bone more available. A mixture 

 of equal weights of ground, lightly steamed bone and good hard 

 wood ashes would carry about two per cent nitrogen, ten per 

 cent phosphoric acid, and three per cent of potash. 





