COMMERCIAL FERTILIZERS. 219 



Reverted phosphoric acid 



Iiisohible phosphoric acid ..... 

 Potassium oxide in muriate of potash . . . 

 Potassium oxide in kaiuit ..... 

 Potassium oxide in high grades of sulphate of potassa 



Cents. 



9 

 6 



4.5 

 6 



7 



In case of inferior mechanical condition of the fertilizers, 

 the customary lower rates have been adopted. Whatever 

 effect the late rise in the price of the crude stock of the 

 various materials used for the manufacture of fertilizers may 

 have on the cost of our standard fertilizers during: the cominof 

 year must be left to future developments. 



New-Yorh and Boston Marhet-Prices for the Year 1880 



(^Marcli). 



I. 



Price per pound, 

 In cents. 

 I. Nilrocjen. In form of nitric acid ...... 24 



In form of ammonia ........ 24 



In form of dried ground meat and blood, finely pulverized 

 steamed bones, finely ground fish-guano, Peruvian guano, 

 urates, poudrettes, and artificial guano . . . .20 



In form of finely ground bones, fine-ground horn, M'ool-dust, 



bat-guano, etc 18 



In form of coarsely ground bones, horn-shavings, and wool- 

 len ragg, human excretions and barnyard manure, fish- 

 scraps, animal-refuse matter from glue-factories and 

 tanneries, etc. ......... 15 



II. Phosphoric Acid soluble in water. As contained in alkaline 



phosphates and superphosphates . . . . .12 



In Peruvian guano and urates ...... 9 



In form of so-called reduced or reverted acid ... 9 

 In precipitated bone phosphate, steamed fine bones, fish- 

 guano, according to size and disintegration, from . 6 to 6.5 

 In form of bone-black waste, wood-ash, Caribbean guano, 

 ground bone-ash, coarsely ground bones, poudrette, barn- 

 yard manure, etc. ........ 5 



In form of finely ground South- Carolina and Nevassa phos- 



III. Potassium Oxide. In form of muriate of potash or chloride 



of potassium ......... 4.5 



In form of sulphate of potassa in natural and artificial 

 kainits ......... 5.5 to 6 



lu form of higher grades of sulphate of potassa . 7 to 7.5 



