Moisture at ioo° C, 



Nitrogen, 



Ash, 



Potassium oxide, 



Phosphoric acid, 



Calcium oxide, 



I908-I9II. I. 



II. 

 III. 



IV. 



Mud from tlie decomposition of seaweed, received 



from Milford, Mass. 

 Granulated tobacco stems, received from Hol- 



yoke, Mass. 

 Peruvian Guano, received from Boston, Mass. 

 Pigeon manure, received from Harwich, Mass. 



COMPLETE FERTILIZERS. 



1912-1915. 



I and TI. Received from Sunderland, Mass. 



III. Received from Hatfield, Mass. 



IV. Received from Weir, Mass. 



Moisture at 100° C, 

 Total phosphoric acid. 

 Soluble phosphoric acid, 



•15 



^•75 



Not determined. 



