glued laminated building panels and 

 other commodities for local and general 

 markets. Selective logging investiga- 

 tions and the development of portable 

 power pruning equipment offer to the 

 small owner possibilities of early and 

 sustained yield of merchantable lumber 

 from his holdings. The turning of gum- 

 collecting cups from southern pine trees 

 that have been "worked out" in turpen- 

 tining operations indicates the possibil- 

 ity of replacing metal cups, at a con- 

 siderable saving to woods owners. Util- 

 ization of the worked-out timber for 

 rosin barrels and for fruit and vegetable 

 crates is also being studied. 



Machining studies 



Many American hardwoods, particu- 

 larly those from the lowlands and river 

 bottoms, are rejected by users on ac- 

 count of difficulties in seasoning and 

 woodworking. To aid in converting 



■■■■>■■■■' ■■ ' ' .. ..:..:■:<■■:■'■:: .■:■ > '' . ' v 



M-26966-F 



Woodworking tests determine machining 

 qualities o£ woods now little used. 



such material from a liability to an 

 asset, a broad program of research is 

 maintained. In addition to chemical 

 seasoning, studies of typical machining 

 operations are carried on together with 

 investigations of physical and mechan- 

 ical properties of the woods and their 

 adaptability to varied commercial uses 

 such as furniture, automobile bodies, 

 and food containers. 



Measuring power required in boring various woods affords one index of 

 woodworking properties. 



re 



M-26772-F 



1 



