84 HATCH EXPERIMENT STATION. [Jan. 



crusting substancies, which have been shown by various 

 investigators to seriously interfere with the digestibility of 

 the several fodder groups. ^ Naturally, no positive conclu- 

 sions should be drawn from the present single investigation. 

 Knowing, however, the physiological and chemical character 

 of the galactan, as well as the digestion coefEcients obtained 

 with starch and with the pentosans, — Ijodies of similar 

 character, — it is reasonably safe to conclude that the results 

 secured give a fairly correct idea of the ability of the animal 

 to utilize the galactan group. 



I The pentosans, fifteenth report of the Hatch Experiment Station, p. 118. 



