Moisture at 100° C, 

 Potassium oxide, 



1873-1876. I. Muriate of potash, received from New Bedford. 



II. Muriate of potash, received from Dighton. 



III. Double manure salts, received from Hatfield. 



IV. Kainit, received from Dighton. 



PER CENT. 



I. 

 Moisture at 100° C, 

 Potassium oxide, 



PHOSPHORIC ACID COMPOUNDS. 



1877-1880. I. Dissolved bone black, received from Whately. 

 II. Dissolved bone black, received from Bradstreet. 



III. Plain superphosphate, received from North 



Amherst, Mass. 



IV. Dissolved bone, received from Raynham, Mass. 



GROUND BONE, TANKAGE AND DRY GROUND FISH. 



1881-1884. I. Ground bone, received from Easthampton, Mass. 

 II, III and IV. Ground bone, received from Concord Junction. 



PER CENT. 



* Not determined. 



