34 TIMBERS AND THEIR USES 



lustrous surface. " Splits with great difficulty 

 and takes a natural polish." Yellowish or 

 brownish in colour and a sapwood tree. " For 

 the most delicate articles, the wood is soaked 

 for twenty-four hours in fresh very clean water, 

 then boiled for some time. When taken out of 

 the boiling water, it is wiped perfectly dry and 

 buried, till wanted for use, in sand or bran." 

 Used since the fifteenth century for wood en- 

 graving, the best wood for scientific instruments. 



Box, Yellow, Eucalyptus melliodora (Fig. 5), 

 also known as Red Gum, Yellow Jacket, Honey- 

 scented Gum, occurs in Eastern Australia. A 

 hard, heavy close-grained timber, very durable 

 and tough. Yellow in colour. 



Cedar, Australian Pencil, Dysoxylum 

 Fraseranum (Fig. 18), also known as Australian 

 Mahogany, Bog Onion, Rosewood. An open- 

 grained wood which is said to be used for wood 

 engraving, but Bailey's reference to its use for 

 backing electros is probably more correct. Its 

 open grain renders it unsuitable for engraving 

 upon. Light red in colour. 



DoawooD, American, Cornus florida, also 

 known as Cornel, Flowering Dogwood, Box- 

 wood, Cornelian wood, "Western Dogwood, occurs 

 in United States. A very fine, close-grained, 

 lustrous timber. Very heavy, hard and strong. 

 Brownish in colour. 



