PER CENT. 

 I. II. III. 



Moisture at ioo°C-, _ .43 .50 1.17 



Potassium oxide, 50-04 47-5^ 49-7o 



DISSOLVED BONK l^^LACK AND ACID PHOSPHATE. 



1622-1626. r. Dissolved bone black, received from Sunderland. 



n. Dissolved bone black, received from North Hat- 

 field, Mass. 



HI. Acid phosphate, received from \\'hately, Mass. 



IV. Acid phosphate, received from Great Harrington. 



V. Acid phosphate, receiv'ed from North Hatfield. 



Moisture at 100° C, 

 Total phosphoric acid . 

 Soluble phosphoric acid, 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid, 



DRY GROUND FISH AND TANKAGE. 



1627-1631. I. Dry ground fish, received from Sunderland. 



II. Dry ground fish, received from North Hatfield. 



III. Tankage, received from Agawam, Mass. 



IV. Tankage, received from Fall River, Mass. 



V, Tankage, received from Great Barrington, Mass. 



Moisture at 100° C, 

 Total phosphoric acid, 

 Available phosphoric acid. 

 Insoluble phosphoric acic, 

 Nitrogen 



