POTASSIC MANURES 125 



ments that have been made along the line as 

 described for the sunflower plant, show that 

 from 50 tons of kelp weed, five tons of 20 per 

 cent potash content have been realized. If this 

 process was practiced in the United States 

 under the present stringency of potash shipments 

 from Europe due to the embargo laid on potash 

 on account of the European War, it might have 

 an effect in relieving the farming conditions in this 

 country as they exist at present due to the high 

 price of fertilizers. No experiments that have 

 come under the observation of the writer give 

 any data of the expense of recovering the kelp 

 weed from the sea. It may be that future data 

 will be forthcoming that will make this an 

 industry in the United States of a permanent 

 character. 



