rhe cineol was determined by the resorcinol method in the portion 

 distilling below [88 , When calculated for the crude oil the resull was 22 per 

 cent. I'>\ the rapid phosphoric acid method it was 21 pei 1 ent, when 1 alcul 

 for the crude oil. 



The Pinene. A portion oi the firsl frai tion was shaken with 50 pei 1 en1 

 resorcinol to remove the cineol, the remaining oil fractionated, and the portion 

 distilling below is* separated. The nitrosochloride prepared with this melted 

 at i<u C. thus confirming the previous indications for pinene. 



27. Eucalyptus microcorys. 



(F.v.M. , F 1 ag. ii, 50.) 

 Tallow-wood. 



Systematic. A tall tree, with a pale-coloured flatish, broken bark, 

 branchlets quadrangular. Abnormal Leaves ovate, about 3 inches Ion-, 

 acuminate, membraneous, pale on the under surface; venation distinct, lateral 

 veins verj spreading, intramarginal vein removed from the edge. Normal leaves 

 lanceolate, varying in length up to <> inches or longer, rather thicker than the 

 earlier leaves, pale on the underside; venation distinct, lateral veins spreading, 

 intramarginal one removed from the edge. Oil dots very numerous. Peduncle-., 

 flattened, axillary or in short terminal panicles or corymbs, generally about six 

 tlo\\er> in the head. Calyx small, pedicel slender. | to 6 lines long; operculum 

 small, domed. 



Fruit. Conical, elongated, rarely cylindrical, some- 

 timesangular at the base; double-rimmed; 

 valves slightly exserted ; about 6 lines long, 

 3 lines in diameter. 



Somewhat resemble those oj E Fergusoni in sha 



hut smaller, and with a thicker rim. 



Habitat. Northern ( oast district of New South Walts and 

 into Queensland. 



REMARKS. V well-marked and distinct spei hiefrj by its pali coloured, hard, durable, 



timber. Bart pal col 1 oi yellowish, not ridged, it appears to be always known vernacularly 



as " Tallow ad is never confounded by settlers and tim cies. Theleaves have 



t resemblam <ia of the north-west interior of New South Wales, and Bentham's 



er's specimens from thai locality under E. m B. II. iii ji ; is very probably an error, a 



corys, as at present understood, doe i m w< I oi the Main Dividing Range. Frasei i ri pi 



I .v.M. Bentham may have been misled by the morphology oi thi pecii and also probably not 

 having suffii lent field notes from collectors to guide him to a correct determination. 



ESSENTIAL OIL. I eaves and terminal branchlets for distillation were 



obtained from Tumbulgum, N.S.W., in October, 1897. The yield oi oil was 0-51 



enl I In . rude oil was but little coloured, had a turpentine-like odour, and 



turbid. Alter the lapse oi some years the oil still remained turbid. It 



be, perhaps, that this turbidity is associated in some way with the 



ised cineol content that take, place in many oil, oi this class 011 keeping, 



particularly as an increase in cineol was noticeable even alter storing the 



oil for onlj threi li . When it was fust distilled the amount oi cineol 



