772 



BOARD OF AGRICULTURE. 



Sea-weed Ashes. 



Moisture at 100° C, 

 Calcium oxide, 

 Magnesium oxide, 

 Potassium oxide, . 

 Sodium oxide, 

 Phosphoric acid, . 

 Suli)hunc acid, 

 Sulphur, 

 Chlorine, 



Magnesium chloride, 

 Insoluble matter, . 



Per cent 



1.47 

 6.06 

 4.37 



.92 

 8.76 



.30 

 2.98 



.14 

 6.60 



.14 

 63.65 



Hockweed. 



[I. Collected in May. II. Collected in December 



