116 COMMON VETCH. 



100 parts of the grass dried at 212 Fahr. 



Albuminous or flesh forming principles 23.61 



Fatty matter 3.06 



' Heat producing principles, starch, sugar,gum, etc. . .. 39.45 



Woody fibre 27.38 



Mineral matter or ash 6.50 



100.00 



From its tall, close, hardy growth, and succulent 

 nature, this plant is capable of being introduced with 

 considerable advantage after the manner of artificial 

 ".grasses, between different kinds of grain crops, with- 

 out exhausting the land of its fertility ; at the same 

 time, it will afford a useful supply of green or other 

 provender for the cpnsumption of different sorts of 

 cattle. Writers on [agriculture distinguish two spe- 

 cies of the common tare, namely, the spring and win- 

 ter tare. Probably one is only a variety of the other. 

 The former is much less hardy than the latter or 

 winter tare, the plants of which are capable of 

 resisting the effects of the most inclement seasons. 



Several experiments have been made in order to 

 ascertain the difference of the two, relative to their 

 hardiness, which has always resulted in showing 

 that there is an important difference in the constitu- 

 tion of these two kinds of tares. The seeds of the 

 spring and winter tares being nearly alike in every 

 characteristic, are not easily discriminated ; but the 

 distinction is at once evident on the appearance of 

 the blade. The spring tare vegetates with a grassy 

 spear of a dusky brown color,, whereas, the winter 

 tare comes up with a seed leaf of a fresh, green 

 color. 



With respect to soil, this plant is almost with- 

 out limitation, as it will grow on all the varieties, 



