93 



with two hours' contact 14-8. After acetylation the number was 73-7, and in 

 the cold 59. The indication is thus for a considerable amount of alcoholic bodies, 

 but these are so mixed, that the molecular value cannot be stated. The alde- 

 hyde absorption was 8 per cent. 



On rectification, no less than 8| per cent, distilled below 153 C. (corr.). 

 Between 153-171, 18 per cent, distilled; between 171-193, 63 per cent, came 

 over, and between 191-214, 8 per cent. These fractions gave the following 

 results : 



First fraction, sp. gr. at 15 C. -. o- - 8342 ; rotation a v + 9-4; refractive 



index at 20 = 1-4158. 

 Second ,, ,, ,, : 0-8876; rotation + 15-6; refractive 



index at 20 = 1-4580. 

 Third ,, ,. : 0-9077; rotation ,, + 9-5; refractive 



index at 20 = 1-4639. 

 Fourth ,, ., ., ; 0-9248; rotation + 2-1; refractive 



index at 20 = 1-4678. 



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

 tilling between 153-193; the result calculated for the original oil was 57 per 

 cent. By the phosphoric acid method the cineol was 31 per cent., thus showing 

 a large proportion absorbed by resorcinol other than cineol. 



In the endeavour to locate these constituents a portion was separated, 

 boiling between 151-192 ; the amount which came over between those tempera- 

 tures was 83 per cent. This fraction had specific gravity at 15 C. = 0-9033 ; 

 rotation D + 10-8; refractive index at 20 = 1-4628. Saponification number 

 15-7, and in the cold with two hours' contact it was 13. After acetylating, the 

 number was 42, thus showing that a considerable portion of the alcoholic bodies 

 were high boiling. The cineol determined by the resorcinol method was 67-5 per 

 cent. ; and by the phosphoric acid method 40 per cent, by two determinations. 

 The aldehydes by absorption were 6 per cent., and calculating for amyl alcohol, 

 and butyl-butyrate as ester, a considerable portion of the absorbable bodies still 

 remains unaccounted for, thus indicating the presence of an unreactive con- 

 stituent which is also absorbed by resorcinol. 



44, Eucalyptus quadrangulata. 



(H.D. & J.H.M., Proc. Linn. Soc., N.S.W., 1899, p. 451, t. XXXIX.) 



Grey Box. 



Systematic. A tree of 80 to 100 feet and diameter of 2 to 4 feet. Bark 

 very much resembles that of ordinary " Box," E. hemiphloia, in general appear- 

 ance, but is more fuzzy and softer than the latter. The branches have smooth 

 tips. Abnormal leaves narrow-lanceolate, cordate and clasping at the base, 

 strictly opposite, markedly paler on the under surface. The early stems are 

 brown (commonly chocolate-brown), and usually square in section and winged. 

 Normal leaves (branchlets angular), lanceolate or narrow-lanceolate, slightly 

 falcate, usually 4 to 6 inches long, scarcely paler on the under surface ; venation 

 conspicuous on both sides, the intramarginal vein conspicuously removed from the 



