690 eeport— 1884. 



Nitrobenzol . Greenish solution. 

 01. Cinnam. "1 ("Green. 



>• Dissolved. < 

 01. Amygd. J [Green. 



01. Terebinth ) AT , ,. , , 

 Ol.Olivce } Not dissolved. 



KHO . . decolorised to a yellowish-green solution, colour restored by 



H a S0 4 . 

 (NII,) 4 S. . destroyed colour, not restored by acid. 

 (Sn Cl 2 ) . destroyed colour, not restored by acid. 



01. . . no change. 



Br , . no change. 



Viewed through spectroscope, produces an absorption of whole spectrum, but no 

 absorption bands. It is possible, from the colour apparently commencing formation 

 in tbe sap wood, from its solubilities and insolubilities, tbat it may be a result of 

 the decomposition of the balsam in tbe outer layer of the woody tissue. As soon 

 as a larger supply of the wood can -be obtained an inquiry into tbe composition 

 and origin of these colours will be made. 



