9 6 



On rectification, 2 pei cent, distilled below 162 C. (corr. . Between 

 162 183°, 87 per cent, distilled; between 183 255°, 6 per cent, distilled. These 

 fractions gave the following result^ : 



First traction, sp. gr. at 15 C. = 0-9029; rotation a D + 5-87°. 

 Second ,, ,. .. = 0-9285; ,, not taken. 



The cineol, determined by the phosphoric acid method in the large fraction, 

 was 40 per rent., indicating about 35 per cent, in the original oil (O.M.). 



This sample had been stored in the dark, and in July, 1919, was again 

 analysed, when 84 per cent, distilled below 190 C. The crude oil and the fraction 

 gave the following results : — 



Crude oil, sp. gr. at 15 C. = 0.9561; rotation a D + 6-5°; refractive index 



at 20 = 1-4705. 

 Fraction „ ,, = 0-9224; rotation a B + 3-8° ; refractive index 



at 20 = 1-4613. 

 The cineol was determined by the resorcinol method in the redistilled portion 

 and calculated for the crude oil; the result was 70 per cent. By the rapid 

 phosphoric acid method it was 48 per cent, when calculated for the crude 

 oil, thus showing the presence of constituents other than cineol, which were 

 absorbed by the resorcinol. Terpineol was detected in the rectified portion. 



46. Eucalyptus Bosistoana. 



(F.v.M., in the Australian Journ. Phar., Oct., 1895.) 

 Ribbon Box. 



Systematic. — This tree was the Eucalyptus described by Baron von Mueller 

 (1895), and has, therefore, only quite recently been botanically placed. Its 

 other vernacular name is " Grey Box Tree " (Mueller). It is a tall tree, running 

 up to over 130 feet in height, and 3 to 4 feet in diameter, with a symmetrically 

 shaped head. Bark rough on the trunk at the base, but smooth towards and on 

 the branches, and stained in places with kino exudations. Leaves variable in 

 shape, on the younger trees broad to lanceolate, of the same colour on both sides, 

 often oblique, the intramarginal vein removed from the edge; in mature trees 

 the leaves are much narrower and more acuminate, lateral veins fairlv distinct 

 and oblique, petiole rather long and slender. Umbels axillary or terminal, 

 few buds in the heads. Young buds somewhat like those of E. pi/uhiris; 

 operculum semi-ovate, hemispheric, often distinctly pointed. 



Fruit. -Pilular; rim truncate; cells numerous; 

 valves not exserted ; about \ inch in 

 diameter. 



/ he fruits arc characteristic and easily distinguish the 

 species, having more cells than obtains in almost any 

 other species. 



Habitat. — Cabramatta, Camden and along the coast of X.S.W. 

 to Victoria, extending to South Australia. 



