170 AGRICULTURAL EXPERIMENT STATION. [Jan. 



Soap-grease Residue. 



[Sent on from South Lincoln, Mass.] 



Moisture at 100° C, . . . . 

 Total phosphoric acid (5 cents per pound) , 

 Insoluble phosphoric acid, . 

 Reverted jshosphoric acid, . 

 Potassium oxide (4-J cents per pound) , 

 Niti'ogen (12 cents per pound), . 

 Insoluble matter, 



Valuation per 2,000 pounds. 



Per cent. 



3879 

 11.04 

 8.93 

 2.11 

 0.14 

 2.21 

 1.20 



$16 24 



8oup from Horse-rendering Establishment. 



[Sent on from Arlington, Mass.] 



Per cent. 



Moisture at 100^ C, 92.14 



Total ijhosjjlioric acid (6 cents per pomid), .... 0.14 



Nitrogen (15 cents per pound), 1.12 



Valuation jjcr 2,000 jjounds. 



P 53 



Fish. 



p. Dried Fish ; sent on by Svvartzey Farmers' Club, Swanzey, Mass. II. Fish and 

 Potash ; sent on from Medfleld, Mass. III. Fish Bone and Potash ; sent on from 

 Concord, Mass.] 



