216 AGRICULTURAL EXPERIMENT STATION. [Jan. 



Seorweed Ashes. 



Moisture at 100° C, 

 Calcium oxide, 

 Magnesium oxide. 

 Potassium oxide. 

 Sodium oxide, 

 Phosphoric acid, 

 Sulphuric 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 



Bockweed. 

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



I. 



ir. 



Fresh wet rockweed lost, in air, of water, . 



Fresh wet rockweed lost, at 100° C, of water, . 



Air-dried rockweed contained, of vegetable matter, . 



Air-dried rockweed contained, of water, . 



The filled pods left, at 100° C, of solid organic matter. 



The fresh stems left, at 100° C, of solid organic 

 matter, 



The slime of the pods, dried at 100° C, contained, of 

 nitrogen, 



Rockweed, entire plant with filled pods, dried at 100' 

 C, contained, of nitrogen, .... 



Rockweed, air-dried, contained, of nitrogen, 

 " fresh (wet), contained, of nitrogen, . 



" dried at 100° C, contained, ashes, . 



" air-dried, contained, ashes, 



" fresh (wet), contained, ashes, . 



The slime of the pods contained, ashes. 



78.700 

 90.400 

 88.220 

 11.780 

 7.360 



30.650 



2.920 



2.286 



2017 



.487 



28.930 

 6.220 

 3.770 



49.356 



65.920 

 76.920 

 89.000 

 11.000 



1.721 



1.432 



.397 



24.890 



22.150 



5.825 



