E25 



The crude oil had specific gravity a1 [5 C. 0-9038; rotation a„ + 11-3°; 

 refractive index al 20 ( [-4642; and was soluble in 1 volume No pei cent. 



alcohol, inn nut in in volumes 70 pei ceni 



< to rectification, a small quantity oi a< id watei . and rather .1 large amount 

 of objectionable smelling aldehydes, came over below c6; 1 (con Between 

 i<>; 172 , 32 per cent, distilled; and between [72 10 1 . 63 per cenl - 

 over. These fractions gave the following results 



First fraction, sp. gr. at 15 G. = 0-8967 ; rotation a„ + 16-7 ; refractive 



index al 20 i- |f> 30. 



Second .. ,, =0-9086; rotation a B + 9-4 refractive 



index a1 20 = 1-4631. 



Tin- .-in.nl was determined by the resorcino] method in the portion 

 distilling below 194° ; when calculated for the crude oil, the resull was 59 per 

 cent. B3 the rapid phosphoric acid method, it was 52 per cent, in the 

 crude oil. 



Tlic saponification number for the esters and free acid was 5-9. 



The oil of this species and that of E. Muelleri arc very closely related, 

 m fact, almost identical in composition, which may be seen by referring to the 

 results tabulated under that species. 



The results of this investigation were published by us in the Proc. Roy. 

 Soc, Tasmania, October, 1912. 



65. Eucalyptus urnigera. 



(Hook., f. in Lund. Jour. Rot., VI, 477, 1847.) 

 Urn Gum. 



Systematic. — A tree varying greatly in size, usually found ;u an altitude 

 between 2,000 or 3,000 feet. Bark smooth, usually blotched with red or brown 

 (Rodwaj 1. Abnormal leaves opposite or alternate, rounded, oval to ovate, 

 crenulate, petiolate or sessile, often cordate, branchlets and foliage often glaucous. 

 Normal leaves oval or ovate-lanceolate to lanceolate, older leaves often thick and 

 shining; venation very indistinct. Flowers pedicellate, the common peduncle 

 axillary, about 5 lines in length. Buds glaucous, about 5 lines long. Calyx 

 tube expanded from the pedicel, then contracted and enlarged again at the rim ; 

 operculum about 1 line long, somewhat acuminate. 



Fruit. Urn-shaped, contracted below the orifice; 



rim truncal.-, In oad ; valves deeply inserted , 

 about 7 lines long and up to 5 lines broad 



/ . ire uncommonly like thosi of the " Bloodwoods," 

 the neari E. corymbosa. 



Habitat. I onfined to Tasmania. 



ESSENTIAL OIL. Material Eoi distillation was obtained a1 Mounl 

 Wellington, Tasmania, at an altitude oi about -'.500 feet. It was collected in 

 July, 1908; and this being the depth of winter, the yield was probably less 

 than if collected in the summei a this species mosl likely follows the general 



