227 



On redistilling the crude oil, the results below were obtained. These 

 show it to be in agreement with those of the " Boxes " such as E. hemiphloia, 

 &c. The oils of this group have no commercial value at present. 



The crude oil had specific gravity at 15 C. == 0-889; rotation a D - - 12-2; 

 refractive index at 20 - 1-4838, and was soluble in i volume 80 per cent, alcohol. 

 The saponification number for the esters and free acid was 9-1. 



On rectification 2 per cent, distilled below 167 C. (corr.). Between 



between 183-224, u per cent, came over, and 

 distilled. These fractions gave the following 



167-183, 77 per cent, distilled 

 between 224-265, 3 per cent 

 results : 



First fraction, sp. gr. at 15 



Second 



Third 



C. = 0-8773 ; rotation a 8-3. 

 = 0-9138; ,, not taken. 



= 0-9282 ; ,, not taken. 



The presence of aromadendral is well demonstrated by the rotation of the 

 crude oil to the left being higher than that of the first fraction. Although light 

 did not pass well with the second fraction, yet it was highly laevo-rotatory. 



In order to test the constancy of the oil products from this species, three 

 other consignments were received from various localities in the Girilambone 

 district, and one from Condobolin, also in N.S.W. The oils were all in agreement, 

 as can be seen from the tabulated results. They all formed clear solutions with 

 i volume 80 per cent, alcohol. 



120. Eucalyptus albens. 



(Miq., in Ned. Kruidk. Arch., iv., 138.) 

 White Box. 



Systematic. Generally a finer tree than its congener E. hemiphloia, 

 F.v.M. The barks of both are very similar, being white, but not deeply 

 furrowed. It occurs generally on higher ground than the "Box" E. hemiphloia, 

 F.v.M. , and the timber is considered the better of the two. Leaves lanceolate, 

 falcate, long and broad, coriaceous, glaucous ; the venation is generally pro- 

 minent, the intramarginal vein is removed from the edge. Peduncles axillary, 



