80 ANALYSES OF THE GRASSES. 



Analysis of the ash. 



Per centum. 



Silex 27-000 



Phosphates of lime, iron and magnesia - - 16'SOO 



Carbonate of lime 5 - 450 



Magnesia 0-100 



Potash 1-610 



Soda 24-120 



Chlorine 3-360 



Soluble silica 1-000 



Sulphuric acid 11-880 



Carbonic acid 0-710 



Organic matter ...... 5-260 



97-290 



In this analysis, we find large amounts of soda and sulphuric acid, and only a small 

 quantity of potash. It is an unimportant grass, and it is not sought after by any kind of 

 stock, though it is occasionally eaten. If it can be obtained, however, for the litter of the 

 barn yard, or for the compost heap, it would form a valuable addition. 



X. BLACKISH-GREEN CLUBRUSH (Scirptis atrovirens). 



Gathered three miles south of Albany : cut June 22; height 30-36 inches, just out of 

 flower. One stalk weighed 112-62 grs., and gave 



Per centum. 



Water ; 40-881 



Dry matter 59-119 



Ash 2-353 



Ash calculated dry 3 • 980 



Organic matter calculated dry ... 96-020 



Ash saline. The percentage of inorganic matter in these two last species of Scirpus 



is greater than in the Juncus effusus, and less than in the Glyceria ftuil ans, and the 



other grasses given. 



