ON SOME N.S.W. TAX- SUB STANCES. 195 



colour of outer surface of inner bark yellowish-green to yellowish. 

 It has a structure which may be described as " wavy," this 

 appearance being evident both on the outside and on the inside. 

 The wavy lines are very narrow, and the distance between each 

 crest up to about ^ inch. This structure causes the bark to break 

 in pieces having a wavy fracture. Thickness varies from \ to | 

 inch in the samples examined. Colour of powder rather darker 

 than E. Studrtiana. The smell of the powdered bark is very 

 pleasant, owing to the presence of a little essential oil. 



Extract. — Yields 18*65 per cent, to water at 100° C. The 

 solution is of a ruby colour, but not quite so bright as that of E. 

 maculata bark. It contains a trace of essential oil,* Colour of 

 moist residue light yellowish-brown. 



Kino-tannic acid — 7 '504 per cent. 



In Decade 2 of the " Eucalyptographia " as a foot note to E. 

 lonyifolia, Baron Mueller gives the per centage of tannic acid of 

 E. viminalis bark (smooth) at 4*88, and from a " young tree " 5 -9 7. 



42. Eucalyptus Stuartiana, F.v.JL, N.O. Myrtacea 1 , B. Fl. iii., 

 243. Figure Decade 4 " Eucalyptographia " (Mueller). 

 Found in South Australia, Victoria, Tasmania and New 



South Wales. 

 Vernacular Name — "Apple-tree," (the leaves being supposed 



to have the odour of apples). 

 Locality whence these particular specimens were obtained — 



Quiedong, near Bombala. 

 Geological Formation — Limestone. 

 Part of the Tree Examined — Bark. 

 Particulars of the trees whence it was obtained — Height 60 to- 



80 feet, diameter 2 to 4 feet. 

 Collected 7th April, 1887. Analysed 19th August to 8th 

 September, 1887. 

 Prevailing colour of outside bark light grey with whitish patches. 

 The outer portion can be readily torn away with the finger nail, 

 exposing a yellowish colour. This soft outer bark contains numerous 

 shallow longitudinal fissures, the distance between which is \ inch 

 on the average. Parts of it are also inclined to be scaly. Inner 

 bark tough, and full of short, inlocked fibre. Colour light brown. 

 Powder something like grass-seed in general appearance ; full of 

 fibre. 



* Both this and the following bark (E. Stuartiana) are mounted on 

 boards covered with white paper, and have remained in this position for 

 some months. The presence of essential oil in both of them has evidenced 

 itself by slightly staining the paper. 



