74 



AMERICAN FORESTRY 



DilLGLAS i-'IR FUK INll-.RlciK Dl-A (JKATIU.X 



This is the reception room of the Pan American Building at Washington, 

 D. C. It is finished in Douglas fir, given by the Oregon and Wash- 

 ington Douglas Fir Dealers' Association. The room was one of the 

 show places in the Pan American Building, which attracted much 

 attention from the delegates during the recent Pan American Scientific 

 CoP-gress. 



pipe of wood in the world was made in the same manner 

 to conduct water for hydroelectric purposes a distance of 

 one mile. This pipe is one hundred and sixty-two inches 

 inside diameter, and was erected in the State of Wash- 

 ington not far from Portland, Oregon. 



Tanks and silos require big amounts of this wood 

 annually, and almost all mills cutting Douglas fir carry 

 stock known as "silo stock." Douglas fir is peculiarly 

 fitted to use for stave tanks for holding acids. Concerns 

 which have to use a considerable amount of acids in their 

 manufactories prefer Douglas fir for these tanks because 

 of their extreme resistance to oxidation by acids. The 

 wood stave silo has proven to be quite superior, due to 

 its ease of construction, its strength and durability, and 

 low initial cost. It is estimated that a wood stave silo is 

 from twenty to sixty per cent cheaper than silos made 

 from substitute materials, such as cement, brick, tile, etc. 

 The wooden construction can be done by unskilled work- 

 men, sa\ing C|uite an item in construction expense. More- 

 over, the wood keeps the temperature of the ensilage 

 more nearly uniform than materials which are good con- 

 ductors of heat. 



FURNITURE 



Although being a little too soft for the construction 

 of the finest furniture, yet the furniture business every 

 year consumes several million feet in the manufacture of 

 moderate-priced furniture. For work tables, shelving, 

 counters, cabinets, cupboards, and like equipment it an- 

 swers well the requirements, and, in addition to its initial 

 cost, is so much below that of hardwoods that it finds 

 quite general use for such purposes. 



MISCELLANEOUS USES 

 In the construction of boats, 

 such as sailing vessels, the 

 smaller-sized steamers, auxiliary- 

 power schooners, and the smaller 

 craft manufactured on the Pa- 

 cific Coast, Douglas fir is used 

 almost exclusively. It is es- 

 pecially desirable for such con- 

 struction, because the long, clear 

 timbers required are so easily 

 obtainable. 



Many novelties and by-prod- 

 ucts of the general lumber 

 manufacture are now made 

 from Douglas fir. Since the 

 war makes German toys no 

 Idiiger available, there has been 

 a marked increase in the num- 

 ber of toys manufactured from 

 the western woods, and an in- 

 teresting feature of this change 

 in source of supply is the change 

 in the character of the tovs. The 



DOUR OE DOLT.LAS FIR 



The beauty of the finish makes this wood particularly desirable for in- 

 teriors and its use for this purpose is steadily increasing. 



