274 MASS. EXPEKIMENT STATION BULLETIN 171. 



Composition of Dry Matter. 



Summer Tops, 

 11 Samples. 



Fall Tops, 

 7 Samples. 



Ash, 



Protein, . 



Fiber, 



Fat, 



Nitrogen-free extract, 



Sugars, 



Pentosans, 



Lignin, etc.. 



Total nitrogen. 



Protein nitrogen, 



Amino nitrogen, 



9.34 

 17.47 

 33.04 



2.71 

 37.44 



5.29 



15.58 

 16.57 



2.79 

 1.63 

 1.16 



8.65 

 7.94 



43.75 

 3.49 



36.17 



20.90 

 15.27 



1.27 

 1.27 



Progressive Changes in Composition of the Asparagus Plant. 

 The following table has been arranged in order to compare the compo- 

 sition of the successive stages of growth which have been studied: — 



Autumn 

 Roots, 

 1910. 



Summer 

 Roots, 

 1911. 



Young 

 Stalks. 



Summer 

 Tops. 



Autumn 

 Tops. 



Water, . 

 Dry matter. 



78.90 

 21.10 



81.38 

 18.62 



92.30 

 7.70 



73.44 

 26.56 



70.73 

 29.27 



Composition of Dry Matter. 



