836 



BOARD OF AGRICULTURE. 



KAME OF MATERIAL. 



Price per ton 



of 

 2,000 pounds. 



In dollars. 



Trice per pound 



in case of from 



100 to 200 pounds, 



fn cents. 



Bone-black (waste material), containing from 

 30 to 34 per cent of phosphoric acid 



South- Carolina Phosphate (ground), contain- 

 ing from 25 to 28 per cent of phosphoric 



RCIQ ■•••••• 



Navassa Phosphate (ground), containing from 

 25 to 28 per cent of phosphoric acid 



Canadian Apatite (ground), containing from 

 30 to 35 per cent of phosphoric acid 



No. 2 Superphosphate of Lime, containing from 

 15 to 16 per cent of soluble phosphoric 

 acid ....... 



Acid Phosphate, containing from 12 to 14 per 

 cent of soluble phosphoric acid 



Lohos Guano, yielding from 4 to 6 per cent of 

 ammonia, and containing from 18 to 20 

 per cent of phosphoric acid 



Peruvian Guano (guaranteed), yielding from 

 6 to 8 per cent of ammonia, and containing 

 from 12 to 14 per cent of phosphoric acid, 



Muriate of Potash, containing from 80 to 85 

 per cent of that compound, equal to from 

 50 to 53.7 per cent of potassium oxide . 



Muriate o/ Po^asA (Do uglasshall), containing 

 80 per cent of that compound, equal to 50 

 per cent of potassium oxide and about 10 

 per cent of sulphate of magnesia 



Sulphate of Potassa, containing 80 per cent of 

 that compound, which is equal to 43.3 

 per cent of potassium oxide 



Sulphate of Potassa, containing from 60 to 65 

 per cent of that compound, which is equal 

 to from 32.3 to 35 per cent of potassium 

 oxide ....... 



German Potash-Salt, containing from 28 to 

 32 per cent of sulphate of potassa, which 

 is equal to from 15 to 17.3 per cent of 

 potassium oxide ..... 



Kainit (low grade), containing 22 to 26 per 

 cent of sulphate of potassa, which is 

 equal to from 11 9 to 14 per cent of 

 potassium oxide ..... 



Sulphate of Mar/nesia (Kieserite), containing 

 from 60 to 70 per cent of that compound. 



Sulphate of Magnesia, containing from 50 to 

 55 per cent of that compound . 



Fine-ground Gijpsum, containing from 95 to 

 98 per cent of that compound . 



30-35 



55-60 

 60-65 

 42-45 



45-50 

 65 



55-60 



18-20 



1.75-2 



3-3 5 

 3.25-3.5 

 3 



2.5 

 4 



3.5 



1.25 



