r=;6 



= 0-569 per cent. The rotation of the crude oil </„ = + 31-25° ; specific gravity 

 at if C. = 0-8657; refractive index at ig° C. = 1-4749; saponification number 

 37*94, equal to 13-274 per cent, ester. Cold saponification, with three hours con- 

 tact, gave 6-82 per cent, of ester, and \\-ith nineteen hours contact, 8-799 P^r cent, 

 ester. 



On redistilling, 28 per cent, came over below 160° C. ; 28 per cent, between 

 160° and 165° C; ^2 per cent, between 165° and 200° C. ; 7 per cent, between 

 200° and 225° C. The specific gravity at 19° C, first fraction = 0-8529; of the 

 second, 0-8537; of the third, 0-8649; of the fourth, 0-9322. The rotation of 

 the first fraction <i|, = + 32-2°; of the second 4- 31-7 ; of the third + 30-6° ; of the 

 fourth + 32-5". The constituents were identical with those in the other samples. 



No. 6. — This material was collected near Tamworth, 280 miles north of 

 Sydney, New South Wales, 3rd IMarch, 1908. 388 lb. of branchlets, containing 

 some fruits, gave 35 oz. of oil, equal to 0-563 per cent. The specific gravit}- of 

 the crude oil at 24° C. = 0-8665 ; rotation r([, = 4-25-2°; refractive index at 

 24° C. = i'47-i the saponification number was 402, equal to I4'07 per cent. 

 ester. These results are practically identical with those obtained with the other 

 samples, and it was thus thought unnecessary to carry the investigation further. 



No. 7. — This material was collected at Xyngan, 3S0 miles west of Sydney, 

 New South Wales, 29th December, 1899. 358 lb. branchlets gave 30J o?. of oil, 

 equal to 0-532 per cent. The distillation was continued for eight hours, but very 

 little oil came over during the extra two hours; it was sufficient, however, to 

 increase the specific gravity somewhat, although the ester content was but little 

 improved. The specific gravity at 24° C. — 0-8782 ; rotation, (^i, = +22-7°; 

 refractive index at 19° C. — 1-4774; saponification number 40-61, equal to 14-21 

 per cent, ester. 



Table 1. — Crude Oils from the Leaves of Callitris glauca. 



.\o. 



Localitv and Date. 



Specific 

 Gravity" C. 



Rotation 



Refractive 



Ester 



Yield 

 per 



Index ' C. per cent. ^ . 



1 Narrandera, 25/4/07... 



2 Boppy Mountain, 25 /5 /03 



3 Tr angle, 28/11/02 



4 Wellington, 17/3/03 

 ^ P.ylong, 2/5/03 

 '1 Tamworth, 3/3/08 

 7 Nyngan, 20/12/99 



... 0-8729 @i8 + 27-9' 



... 08665 „ 18 ' + 31-3° 



... 08631 „ 24 + 308° 



... 0-8659 „ 17 + 28-4= 



0-8657 „ 19 + 31-25° ; 1-4749 „ 19 13-27 



0-8665 ., 24 + 25-2° I 1-4720 ,, 24 ] 14-07 



0-8782 ,, 24 + 22 7° I 1-4774 ,, 19 j 14-21 



1-4747 Cd 18 16-46 



1-4779 .' 19 "-0 



1-4755 „ 20 I 12-76 



1-4774 .. 19 i-io 



•5(.2 



•616 

 •610 

 •635 

 •569 

 ■563 

 ■532 



