COMPOSITION OF RECTIFIED GUANO. 



309 



Peruviun giiano into our markets, will eventually not only 

 pecuniarily benefit both the manufacturers and the consumers, 

 but for obvious reasons also exert a beneficial influence on the 

 character of the entire trade in fertilizers. 



I visited the works of Messrs. Hobson, Hurtado & Co., in 

 Brooklyn, during the mouth of August, and saw their arrange- 

 ments for the manufacture of the rectified Peruvian orn^no. 



The entire manajjement is under the direction of an ex- 

 perienced chemical engineer. 



The following analytical results were obtained from a 

 sample taken from a ton ordered by Pres. W. S. Clark of the 

 Massachusetts Agricultural College for experimental purposes 

 on his private grounds. It is but fair to state, that it came 

 from one of the first lots manufactured. 



Rectified Peruvian Guano. 



Manufactured by Messrs. Hobson, Hurtado & Co., of New York City. 



Represented. 



Total phosphoric acid, .... 

 Soluble " " . . . . 



Reduced " " . . . . 



Insoluble " " . . . . 



Total nitrogen, ..... 

 Being found present as actual ammonia, 

 And potential ammonia, 



Potassium oxide, 



Moisture, 



10.50 



10..50 

 2.00 



Rectified Peruvian Guano. 



{^Valuation per ton of 2,000 pounds.'] 



211.0 pounds soluble phosphoric acid, $26 34 



24.0 " reduced " " 2 40 



17.0 " insoluble " " 85 



187.2 " nitrogen, 46 75 



39.8 " potassium oxide, 3 14 



Total, 179 48 



One ton of 2,000 pounds of this fertilizer is offered for sale 



at $60 currency. The mechanical condition of the article 



was good, — being of a dry, pulverulent form, it was fit for 

 immediate application. 



