M 



The crude oil was ol .1 dark ambej colour, and had an odour similar to 

 those ol pinene-cineol oils generally. Volatile aldehydes were pronounced. The 

 pinene was dextro-rotatory, and phellandrene was absent. Cineol was presenl 

 in taif amount. Esters were in small quantity, bul those presenl were high-boiling. 

 A small amount ol the sesquiterpene was also present. 



The crude oil had specifii gravitj al is < 0.9968 ; rotation a D + 101 , 

 refractive index at 20 i- (.695, and was soluble in 1 volume 80 per 1 ent. alcohol. 

 The saponification numbei foi the esters and free ai id was ;•_>. 



On rectification 1 percent, distilled below 162 ( corr. Between 162- 

 172 . 50 per cent, distilled; between 172 [93 . 30 per cent, came over, leaving 

 i«) per cent, boiling above 193 . The two fractions and tin- residue gave the 

 following results : — 

 First fraction, sp. 



jr. al 



15° 



C. 



0-89 i" ; rotation a + 15-7° ; refractive 

 index at 20 = 1-4633. 

 Second ,, ,, ,, = 0-9082; rotation a D + 7-6 ; refractive 



index at 20° = 1-4648. 

 Residue ,, ,, = 0.9409; rotation too dark; refractive 



index at 20° = 1-4905. 

 The cineol was determined by the resorcinol method in the portion dis- 

 tilling between i<>_> [93 ; w h<n calculated lor the crude oil, the result was 45 per 

 cent. A determination by the rapid phosphoric acid method ;8 per cent. 



Tin- saponification number lor the residue was ii-.p and in the cold with 

 two hours' contact it was 8-3. 



The phenols were removed in the ordinary way; they were liquid and 

 gave the reaction lor tasmanol. The amount ol phenols present in the crude nil 

 was 0.1S per cent. 



The rectified oil was yellowish in tint, a character common to the oils of 

 this class. This colour is probably due to the influence of the phenol australol. 



36. Eucalyptus maculata. 



(Hooker, [c. PI., 1 , 619 

 Spotted Gum. 



Systematic. — A tall tree, with a long (dean trunk. Bark smooth, some- 

 what shining, whitish or sometimes reddish-grey, mottled by bluish-white or 

 brown-reddish spots, indicating the places or rudiments ol pah hes ol older bark, 

 hence the vernacular name. Abnormal leaves sometimes 1 toot long and 3 inches 

 la 1 '.1 d, thick, pale on the under side, venation similar to that of the normal leaves, 

 which are long, lanceolate, slightly falcate, from .| to 6 inches long; venation 

 distinct, fine, oblique, parallel; intramarginal vein close to tin edge, somewhal 

 obscured. Flowers in axillary or terminal panicles, on pedicels _' to 3 lines long. 

 Calyx oblong or cylindrical, 3 to | lines 111 diameter; outer operculum hemi- 

 spherical hut depressed, either with or without a small 



point. 

 Fruit. Urn-shaped; rim thin, sunk; valves 



Ul- 



sel ted ; abi 'lit I inch I 



// is almost similar in shape to that " ; 1 citriodora, 

 and uncommonly resembles the smaller fruited form of 

 the ■■ Bloo 



Habitat. 



Coastal Districts, and rableland from Clydi 

 \ S.W., into Queensland, 



River. 



