112 AGRICULTURAL EXPERIMENT STATION. [Jan. 



The difference in the moisture and in the mechanical condi- 

 tion of the above-stated articles controls largely their market 

 value. Samples I. and III. consisted of large pieces of fish 

 meat with fatty matter ; the valuation is based in these cases 

 on that of coarse fish scrap. Sample II. corresponds well 

 with a fair- specimen of fish guano. 



Dried Fish. 



[Sent on from North Hatfield, Mass.] 



Peruvian Guano. 



[Sent on for examination, Taunton, Mass.] 



Moisture at 100° C, . 

 Total phosphoric acid. 

 Soluble phosphoric acid, 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid 

 Potassium oxide. 

 Nitrogen (total). 

 Actual ammonia (equal to 

 Organic nitrogen, 

 Insoluble matter. 



5.48 



per cent, nitrogen). 



Valuation per 2,000 lbs 



Apparently an artificial product. 



Per cent. 



10.13 

 14.31 

 1.66 

 491 

 7.74 

 2.16 

 7.20 

 6.C0 

 1.77 

 4.66 



$42 6 



