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HATCH EXPERIMENT STATION. 



[Jan. 



The goods must be sold on a guaranteed analysis, stating 

 their percentages of potash and of phosphoric acid present, 

 and this analysis must be fastened to each package or car 

 that contains them. As the dealer is obliged only to fur- 

 nish a guarantee of the amount of potash and of phosphoric 

 acid present in the ashes, no objection can be raised regard- 

 ing the amount of moisture, so long as the specified amount 

 of these two elements is present. 



Wood ashes ought to be bought and sold by weight, and 

 not by measure, for both moisture and general character of 

 the foreign matters are apt to seriously affect the weight of a 

 given volume. The following table shows the general char- 

 acter of the wood ashes, so far as their chemical composition 

 is concerned, that have appeared in the general markets dur- 

 ing the season of 1900 : — 



Analysis of Wood Ashes. 



CONSTITUENTS. 



Number op Samples. 



Moisture below 1 per cent., 



Moisture from 1 to 10 per cent., 



Moisture from 10 to 20 per cent., 



Moisture from 20 to 30 per cent 



Moisture above 30 per cent., 



Potassium oxide above 8 per cent. 



Potassium oxide from 7 to 8 per cent., 



Potassium oxide from 6 to 7 per cent 



Potassium oxide from 5 to 6 per cent 



Potassium oxide from 4 to 5 per cent , 



Potassium oxide from 3 to 4 per cent 



Potassium oxide below 3 per cent., 



Phosphoric acid above 2 per cent., 



Phosphoric acid from 1 to 2 per cent 



Phosphoric acid below 1 per cent 



Average per cent, of calcium oxide (lime), 



Per cent, of mineral matter insoluble in diluted hydrochloric 

 acid : — 

 Below 10 per cent 



Between 10 and 15 per cent., 



Between 15 and 20 per cent., 



Above 20 per cent., 



