INDO-MALAYAN WOODS. 427 



which lias a strong odor of sassafras. Different ones of these are known 

 as kappla, ruan, medang hula and ca I in gad in the Malay Archipelago. 

 It is probable that some of these at any rate would make good substitutes 

 for camphorwood in the manufacture of insect-proof boxes. 



The Borneo camphorwood is obtained from species of Dryobalanops 

 (sec p. 509), of the family Dipterocarpacece, and does not have an odor 

 like camphor, except in the neighborhood of the camphor deposits. This 

 wood is not used for cabinet work. 



Holtzapffel 87; Boulger 153. 



CORKWOODS. 



A number of plants, from widely different families, and mostly tropical, 

 are found to produce what is known as corkwood ; i. e., a wood which 

 more or less resembles true cork in its physical properties. 



These woods show differences in structure but agree in having very 

 thin-Mailed elements, which are empty or filled with air in the dry wood. 

 These uniformly thin-walled elements cause the wood to have a very 

 low specific gravity and to be exceedingly soft. 



Very uniform corkwood is produced by Ceiba pentandra (L.) Gaertn. 

 and Bombax malabari-ca DC. Alstonia scholaris (L.) J?. Br. furnishes 

 another type of corkwood. The structure is varied by numerous tine 

 parallel concentric lines of wood parenchyma. Erythrina indica Lain. 

 and other species have corkwood of a quite different type — wide con- 

 centric belts of wood parenchyma having between them rather narrow 

 belts of denser tissue. The vessels are also rather large. Still another 

 type of corkwood is that furnished by the roots of Sonneratia pagatpat 

 Blanco and other species. Here the wood is very homogenous in structure 

 and very like a fine white cork. Some other woods which furnish cork- 

 wood from their stems or roots are Tetranthera amara Nees, and species 

 of Xylopia, Anona, Hibiscus, Dyeva, etc. 



The corkwoods are commonly used as floats for fishing nets and as 

 material for the manufacture of the crude carvings so common among 

 wild tribes in Borneo. 



Wiesner 2: 1020-1023; Blita 51; Winton 253-25;!. 



EBONY (see p. 543) . 



INCENSE WOODS. 



Certain woods are valued because of their ability to produce a pleasant 

 odor when burned. Several of these have, since the most ancient titties. 

 been employed in religious ceremonies. The best known of these is 

 Santalum album L., mentioned in the Hebrew Scriptures as algum or 

 ahnug. 



The lign aloes or lignum aloes of the Scriptures is the same as the 

 eaglewood of commerce and is produced by Aquillaria agallocha Roxb. 

 (Aloexylon agallochum Lour.), and other related species, of India and 

 Malava. 



