74 ANALYSES OF THE GRASSES. 



IV. QUACK-GRASS {Triticum repens). 



1. First specimen. Growii in the rear of the Old Stale House : cut May 1; height 11 



inclios. Five whole plants weighed 124 grs., and gave the following percentages : 



Water 79-355 



Dry matter 20-645 



Ash 2-528 



Ash calculated dry 12-245 



Organic matter calculated dry ... 87-755 S. 



2. Second spfchneii. From the same place : ciil June 8; height 46-48 inches, just be- 



ginning (o hend out. Five sinlks weighed 361 grs., and gave the following per- 

 centages : 



"Water 80-232 



Dry matter 19-768 



Ash 2081 



Ash calculated dry 10-527 



Organic matter calculated dry ... 89-473 S. 



3. Third specimen. From the same place : cut June 21 ; height 50 inches, in flower. Two 



stalks weighed 174' 20 grs.. and gave the perc«n(nges following : 



Water 7J-618 



Dry mnttpr 2S-3S2 



Ash 2-612 



Ash calculated dry 9-203 



Organic matter calculated dry - • • 90 797 S. 



The above shows — excluding the water — a gradual decrease of inorganic, and a 

 corresponding increase of organic matter as the plant advances in age. 



4. Fourth specimen. 

 ash ffave 



From I he same place : cul May 1 ; height 11 inches. 100 grains of 



Carbonic ocid 

 Silicic acid - 

 Phosphates - 

 Lime 

 Magnesia 

 Potash 

 Soda • 

 Sodium 

 Chlorine 

 Sulphuric acid 

 Organic acids 



Per centum. 



1-455 

 27 150 

 17-250 



0-112 



trace. 



7-350 

 26-785 



3-565 



5-425 



4-811 



5-200 



99- 103 S. 



