320 



BOARD OF AGRICULTURE. 



and soluble phosphoric acid, in decomposing animal excre- 

 tions, seems to engage gradually a deserved attention. 



Sulphate of Ammonia. 



Per cent. 



II. 



Ammonia 

 Sulphuric acid 

 Moisture 

 Sand, &c. 



Both samples are good representatives of the kind gen- 

 erally noticed in our markets. No. I. was secured of Messrs. 

 W. H. Bowker & Co. in Boston ; No. II. was stated to be 

 obtained from Mr. G. "White of New York. The peculiar 

 odor of the latter indicated that it was obtained, as by prod- 

 uct, in the charring of animal matter. The former, like 

 most of our articles of this substance, came from the ammo- 

 niacal waters of the gas-works. Sulphate of ammonia of the 

 above description has sold in the wholesale trade as low as 

 eighty dollars per ton of two thousand pounds. In the re- 

 tail trade the price, at the beginning of the spring, has been 

 recorded from eighty -five to ninety dollars per ton ; in case 

 of small quantities, not exceeding from one hundred to two 

 hundred pounds, from four cents and a half to five cents per 

 pound. 



Crude Nitrate of Soda (Chili saltpetre"). 



Kitric acid 

 Sodium oxide 

 Clilorine 

 Moisture 

 Calcium oxide 

 Sulphuric acid 



Per cent. 



60.67 



35.00 



1.70 



1.10 



Traces. 



Traces. 



These analytical statements prove that the article fully 

 corresponds with the adopted standard — 95 per cent of 

 nitrate of soda — of the Peruvian Government. Nitrate of 

 soda, containing 95 per cent of that compound, has been 

 sold at from seventy to seventy-eight dollars per ton : from 

 four to four and a quarter cents has been asked for the pound. 

 As 95 per cent of that compound contains 15.6 pounds of 

 nitrogen, the latter has been sold at twenty-five cents per 

 pound. Judging from previous observation, it seems that 



