976 



TEETH 



Tea Imported in 1873 with a duty o/6d. per Ib. 



Tea Imported in 1874. 



TEAK. The produce of the Tectona grandis ; & native of the mountainous parts 

 of the Malabar coast The African teak is thought by some to belong to another 

 genus (Oldfieldia Africana). 



TEASIiE or FUIiIiER'S THXSTliE (Chardon a carder, Fr. ; Weberdistel, Ger.) ; 

 the head of the thistle, (Dipsacus fullonum), is employed to raise the nap of cloth. See 

 WOOLLEN MANUFACTTTBE. 



TEEXi OX&. See OILS. 



TEETH. In a typical tooth, as developed in most mammals, the greater part is 

 composed of a substance called dentine, the crown being covered \vith a hard enamel, 

 whilst the remainder of the tooth is coated with a cortical substance known as cement. 

 Ivory is very similar to dentine. (See IVORY.) 



Dr. Eobert Dundas Thomson published the analyses of teeth by Alexander Nasmyth, 

 Esq. The following table has been constructed from those analyses : 



For a large series of analyses of teeth by Von Bibra, see Watts's ' Dictionary of 

 Chemistry.' 



