40 
a. Watery solution when filtered making for months and 
months a sediment (again and again) of ellagic act 
on. 
1. Watery solution pale brown. An ophora lanceolata, Cay. 
2. Watery solution dark brown, pink on dilution: Angophora 
intermedia, ; 
b. Watery solution when filtered making only a sediment onee, 
or no sediment at all. 
aa. Watery solution of a blood-red colour, giving green 
reactions with alkalies. Eucalyptus corymbosa, Smith. | 
i r, but on dilution with 
water turning into a magnificent pink (on an opalplate). 
Ferricyanide of potassium in ammonia produces % 
magnificent crimson. 
1. Watery solution diluted on an opalplate shows & 
magnificent pink colour, Eucalyptus viminalis, 
Labill; Eucalyptus Stuartiana, ¥.v. M.; Ewealypius 
goniocalyx, B. v. M. a 
2. Watery solution diluted on an opalplate shows oe 
yellowish green colour. Eucalyptus microcorys,F.¥. 
ms and resins of Australia have been examined ip a 4e° 
reference to their origin from the living plants by which os: The 
gums and resins can thus be classified: The first class of eee pee a 
tains seeks exudations, which are nothing else but the aa : 
juices 0 
decoction of the plant. This first class of gums embraces 09°’ 
the Papilionacee, Lonchocarpus Blackii, and Millettia a yi 1] 
the 
um resin derived mostly from the essential oil of the eucalyp's wos 
tragacanth, The gums of the Sterculias belong to this 
soaked in water they swell up to granular masses, eeuetie” : 
adhesiveness; and resembling boiled rice: Mr. Maiden Mae Fg 
ng ee gue 
