42 BULLETIN 1436, U. S. DEPARTMENT OF AGRICULTUEE 
pregnation of less valuable woods to develop in them a finish simi- 
lar to that of dogwood and persimmon in their natural state. 
Textile and shuttle manufacturers at present display undue con- 
fidence in the sufficiency of the supply of raw material for shuttles. 
Although it is true that curtailment may not be imminent, some organ- 
ized action and research on the part of those especially interested 
will not only go far toward postponing future curtailment of the 
woods at present used, but may also make available certain native or 
foreign species not now used, and thus increase the supply of woods 
suitable for shuttles. 
