142 TIMBER 



grain and very heavy, used for door frames, wheel hubs, 

 spokes, shafts, pulley blocks, etc., and resists moisture 

 well. It is only to be had in lengths up to 20 ft., for the 

 tree only grows to a height of 15 to 20 ft., with a diameter 

 of 12 to 18 inches. A small sample has been tried for 

 paving in Liverpool. 



Weight about 72 Ibs. per cubic foot. 



Guayacan and lapacho are the only native timbers 

 which rival the quebracho, but they are not so plentiful. 



Curupay and Urunday produce a very similar class of 

 timber, which has been a good deal used for piles and 

 jetty work in the Argentine and in such situations has 

 lasted over 30 years. In some situations Curupay has 

 lasted twice as long as Urunday or even Quebracho ; neither 

 is, however, so stiff as Quebracho. Curupay is a hard red 

 wood of great strength, stands damp well, and a good deal 

 of it is used for masts and some for sleepers. Curupay- 

 ria' is the heavier kind, but rather inclined to split when 

 exposed to the sun. The tests show Curupay to be rather a 

 stronger timber than Quebracho Colorado ; it is particularly 

 strong in tensile strain. These two timbers come chiefly 

 from Paraguay, to the north of Argentina, which furnishes 

 it with a considerable quantity of timber. 



Weight about 60 Ibs. per cubic foot. 



Quebracho, Lapacho, and Curupay are the timbers most 

 used in Argentina. 



Palo Blanco (Calycopln/Uum multiflorum) is a tree of 20 to 

 30 ft. in height and about 2 ft. diameter. The wood is 

 almost white the name means " white wood" with a 

 close grain and is rather expensive. Used for beams, 

 scantlings, planks, etc. 



Weight about 62 Ibs. per cubic foot. Palo Amarilla and 

 Palo Santo are other kinds used for sleepers. 



