368 R. T. BAKER AND HENRY G. SMITH. 



Experimental.— The material was collected at Gosford 

 in this State, and distilled in January, 1911. The amount 

 of material was 214 lbs., and the oil obtained was 18 ounces, 

 equal to 0*526 per cent. The crude oil was reddish brown 

 in colour, due to the small quantity of iron present, but it 

 was readily cleared to a light yellowish colour when 

 agitated with two or three drops of phosphoric acid, well 

 washed and dried. It had a marked turpentine odour, 

 and cineol could hardly be detected in it. 



The crude oil had the following characteristics : — 



Specific gravity at 15° C = 0*8807. 



Optical rotation a D = + 32*7° 



Refractive index at 22° C = 1*4702. 



Cineol (determined by the resorciuol 



method in the second fraction) ... = 2 per cent. 

 Saponification number of ester + free acid = 6*8. 

 Insoluble in 10 volumes 80 per cent, alcohol. 



For distillation, 100 cc. were taken. The amount of acid 

 water and volatile aldehydes distilling below 155° O. (cor.) 

 was very small indeed. Between 155 - 162° 79 cc. distilled; 

 between 162-183° 6 cc. The thermometer then quickly 

 rose to 250° and between that temperature and 263° 11 cc. 

 came over. The specific gravity of the first fraction at 

 15° O. - 0*8661 ; of the second = 0*881 ; of the third = 

 0*9293. The rotation of the first fraction a D = + 36*8°; 

 of the second = + 19*6°. The refractive index of the first 

 fraction at 22° O. = 1*4645 ; of the second = 1*4671 ; of 

 the third = 1*4967. 



Another distillation was undertaken with comparable 

 results. 



The first two fractions (145 cc.) were then added together 

 and again distilled, when between 154-156° O. 114 cc. 

 distilled, and between 156 - 158° 13 cc. more. The quantity 

 of oil boiling within two degrees of temperature from 



