POTASH COMPOUNDS. 



2077-2080. I. Carbonate of potash, received from Hattield. 



II. Carbonate of potash, received from Easthampton. 



III. Carbonate of potash, received from Amherst. 



IV. Sulphate of potash-magnesia, received from Amherst 



PER CENT. 

 I. II. III. IV. 



Moisture at 100° C, 5.29 none. 6.25 3.61 



Potassium oxide, 62.50 63.69 58.80 28.08 



2081-2084. I. High grade sulphate of potash, received from 

 Amherst. 

 II. High grade sulphate of potash, received from 

 Hatfield. 



III. High grade sulphate of potash, received from Feed- 



ing Hills. 



IV. Muriate of potash, received from Amherst. 



I'ER CENT. 

 I. 11. HI. IV. 



Moisture at 100° C, .88 .51 .53 none. 



Potassium oxide, 49.86 50.30 53-60 50.69 



PHOSPHORIC ACID COMPOUNDS. 



2085-2089. I. Dissolved bone black, received from Amherst. 

 II. Acid phosphate, received from Amherst. 

 III. Basic slag, received from Amherst. 

 IV. South Carolina rock phosphate, received from 



Amherst. 

 V. Dissolved bone, received from Amherst. 



Not determined. 



