162 TIMBER 



but is good for interior work. Its produce is too valuable 

 as a fruit for the tree to be much used as timber, but much 

 of the wood, especially of its roots, is a cabinet wood of 

 great beauty, extremely hard and difficult to work. The 

 tree grows to a height of 60 ft. and more ; the wood is a 

 yellowish white colour with irregular dark blotches occa- 

 sionally in the heartwood. The medullary rays are very 

 fine and numerous. 



Weight 54 Ibs. per cubic foot. 



Jackwood (Artocarpus integrifolia) , or Jack tree, attains a 

 height of 80 to 100 ft., grows throughout India, and is also 

 found in the Antilles and Brazil, where it goes by the name 

 of Jaqueira. It is a large evergreen producing a coarse, 

 yellowish brown wood, light at first and darkening in colour 

 with age, sometimes known as Jacqueria wood. It is very 

 durable, fairly hard, and used for a variety of purposes, 

 chiefly for the manufacture of cheap furniture, and in 

 Great Britain for cabinet work, backs of brushes, marquetry, 

 etc. Eesistance to shear along fibres 672 Ibs. per square 

 inch. Crushing strength 3'4 tons, transverse strength 

 3'04 tons, and coefficient of elasticity 445 tons per square 

 inch (Prof. Unwin, Impl. List. Journal, Vol. V.). 



Weight about 43 Ibs. per cubic foot. 



Hamileel or Hamillila (Berrya ammonilla) is one of the 

 most durable and useful timbers of Ceylon, but is chiefly 

 used for making casks. The medullary rays are broad, 

 the colour varies from light to dark red, and the heartwood 

 is well defined, hard and close grained, but apt to split ; it 

 is very durable. The tree is also found in Burma and 

 Southern India and goes by the general name of Trincomali 

 wood. Resistance to shear along fibres 830 Ibs. per square 

 inch, crushing strength 3*4 tons, coefficient of transverse 



