REMARKS. II ,i pecics is raphical distribution, 



and shows no disposition t" variation. Mueller synonymised it witl bul il only 



resembles thai spei ies in the shape oi the truit, ["he leaves truil i ilj distir rom / . 



'"i Smith. This is no1 I tstonta, va.r, micrantha which is a true varietal [i 



ESSENTIAL OIL. Leaves and terminal branchlets for distillation wen 

 "l>t, inn. I from (uw Flat, Bathurst, N.S.W., in March, cgoi. The yield "I oil 

 was 0-72 per cent. The crude oil was oi .1 dark ambei colour; and had an odour 

 reminding oi peppermint, although piperitone 1 ould onlj be presenl in very small 

 quantity. It was fairly rich in cineol; pinene was present, but phellandrem 

 no1 detected The presence oi a high-boiling constituenl which had a high 

 rotation to the right was well shown; this is the liquid form of eudesmol. I In 

 oil oi this species differed greathj from thai oi E. hcemastoma, oi Smith, the 

 " Scribbly Gum" oi t lie coast, and also from that oi " Scribbly Gum 

 around Lawson, and other places on the Blue Mountains, NSW. 



The crude oil had specific gravity at 15C. = 0-9215; rotation </, + 7-. 

 refractive index at 20° = 1-4684, and was soluble in 1 \ volumes 70 per cent, 

 alcohol. The saponification number for the esters and tree acid was 7-1,5. 



On rectification, about 1 per cent, of acid water and volatile aldehydes 

 'Mine over below 165 C. corr.). Between 165 183°, 69 per cent, distilled; 

 between 1 N ; 233 , 14 per cent, came over, and between 233-280 , 11 per cent. 

 distilled These tractions gave the following results : 



First fraction, sp. gr. at 15 ° C. = 0-9108; rotation a + 4-8°. 

 Second „ ,, ,, =0-9170; ,, + 4-3°. 



Third „ ,, ,, =0-9499; ,, +19-2°. 



The cineol determined in the first fraction by the phosphoric acid method 

 was 49 per cent. O.M. , indicating about 40 per cent, in the crude oil. 



Material oi this species had previously been sent from Bungendore, X.S.W., 

 in March, 1899. The oils were practically identical in everj respect, with the 

 exception that a little more pinene was present. The specific gravity oi the crude 

 oil at 15° was 0-9168. Below 183 , 78 per cent, distilled; between 183-240°, 

 9 per cent., and between 240-280°, 7 per cent. The crude oil was soluble in 

 ij volumes 70 per cent, alcohol. The fractions gave the following results 



First fraction, sp. gr. at 15° C. = 0-9096; rotation a D + 5-6°. 



Second „ „ „ =0-9205; ., + 3-8°. 



Third _ „ „ ,, = 0-9492; ,, + 18-7°. 



The cineol determined in the large fraction by the phosphoric acid 

 method was 52 per cent. (O.M.), indicating about 42 per cent, in the crude oil. 



On the completion oi the analyses, the two oils were mixed and stored 

 in the dark. In August, 1919, the sample was again analysed. Alter twenty years 

 but little alteration was observed in the oil of this species; and on rectification, 

 80 per cent, distilled below 190° C. The results with the crude and rectified oils 

 were as follow : 



(rude oil, sp. gr. at 15 ('. = 0-9205; rotation « u + 7-5 ; refractive index 



at 20° = 1-4677. 

 Large fraction ,, .. =0-9126; rotation a + 5-7° ; retractive index 



at 20' 1 |dio. 

 The cineol was determined by the resorcinol method in the large traction 

 and calculated for the crude oil; the result was 64 per cent, l'.\ the phos 

 phoric acid method j, was 55 percent. 



