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x 
: 
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69 
An essential oil, resembling oil of turpentine, is present in the 
Araucaria resin, but different a little in that of the various species. 
: raucarta Bidwillit, Hook., Fl. Austr. vi. 243. Bunya Pine. The 
Holy tree’ of the aborigines (6uny means holy in some Queensland 
dialects) exudes a gum quite white in the fresh state, and looking like 
tallow from the distance. It is practically an inspissated emulsion of 
resin in arabin. It becomes yellow after some time, when it loses 
more water, as the arabin then allows the light to pass through. 
The gum resin does not melt on application of heat, owing to the 
si 3 d, and emits a smell reminding of 
urn ph a ag By dry distillation it yields catechol (from the 
) 
In 
ay to the bottom, whereas a turbid liquid on top of it oy a part 
ot the arabin dissolved. The arabin, the resinous body Fs tie Shag 
No. 1, 0. 2. 
ate. os 40 Water. . 22 
heigl ce 128 Arabin to a ae 
a gee, oe Pe oy fie) Resin ... Ro ee et Eee 
Seo. we 5 Esgentialoll... + 20 
ti Selicig BOM sche: at on 
Obtained 18th N. — 1 
Both ovember, 1894. Obtained 10th February, 1895. 
samples are from a tree in my garden. 
re Ounninghamii, Ait., Fl. Austr. vi.248. Hoop Pine. (See 
ai under generic remarks.) The Moreton Bay ~~ yields a gum 
tasin 72y/**8€ quantities if the bark is wounded. It has an aromatic 
resin and a pleasant odour, resembling that of turpentine. The gum 
| ee ngeed by Mr. Maiden (1889), who found it to contain 
is to be 
(12 per cen ) 
loa gum resins poor of arabin melt near the temperature of 
and 
n 
Boling water disintegrates the gum resin and dissolves a 
re 18 only a small amount of essential oil present, es Bo 
mle a in arabin, It smells more like the oil of Agathis 
of oil of turpentine. 
ANatysps— : 
No. 1. No. 2. 
Vater .. noe ws Peele Water.. : ot oot ead 
: Ses oat rei ee ot wa es we pee 
Volatile oj) the > ake oa eet i eee eas 
a sos cae Volatile oil ... Sh ok 
oe SE eee 02 
ena 
em 1000 
Obtained 15¢h November, we Obtained 20th February, 1895, 
