203 



The Oil of the Fruits. 



The oil was distilled from the fruits alone of this species, so as to determine 

 whether it differed in its characters from the leaf oil, as is the case with some other 

 species of Callitris. The results show, however, that the oil distilled from the fruits 

 of C. calcarata is practically identical with that obtained from the leaves, and the 

 only difference noticeable was a slightly larger yield. The fruits were collected 

 at Shuttleton, New South Wales, on the loth December, 1903, and they were 

 distilled for six hours; 68 1b. gave 2| oz. of oil, equal to 0-229 P^^ cent. 

 The crude oil was somewhat dark in colour, but had a pleasant aromatic odour. 

 The specific gravity of the crude oil at ff ° C. = 0-8797 ; refractive index at 23° C. = 

 1-4744: rotation Uq + 2-15°; saponification number was 95'35, equal to 33-37 per 

 cent, of esters as bornyl-acetate and geranyl-acetate. In the cold, with two hours' 

 contact, the saponification number was 89-1, equal to 31-18 per cent, ester. The 

 separated oil after saponification, had a marked odour of geraniol, and was readily 

 oxidised to citral. The amount of borneol present in the oil of the fruits of this 

 species is very small. 



Crude Oils from the Leaves of Callitris calcarata. 



No. 



Locality and ' Specific 

 Date. Gravity ° C 



Rotation Refractive 

 a^ Index ° C. 



Ester percent 

 by boiling. 



Ester per 

 cent, in cold. 



Yield 

 per cent 



1 



I. ' Wellington, 0-8949 @ 17 

 9'3'03 



+ 11-7 1-4747 @ 19 



46.58 



39-4 



o-i68 



1 

 2. ! Bylong, o-886i @ 19 

 i 29 '4/03 



i 



+ 14-1 



1.4760 @ 19 



41-33 i 27-08 



0-162 



3' 



Shuttleton, 

 7'i2 03 



0-8803 @ 23 



- 4-5 



1.4752 @, 19 



38-6 i 



0-164 



Crude Oil from the fruits of C. calcarata. 



Shuttleton, 08797 @ 23 

 10/12/03 



+ 2.1.^ 



1-4744 @ 23 



33-37 



U-i8 



0-229 



IV. TIMBER. 



(a) Economic. 



This timber has sometimes a duramen almost as dark as that of C. 

 intratropica, but with a far more ornamental figure, and so is in much request for 

 inside boards, for lining houses, wainscoting, panelling, &c. 



