204 R. T. BAKER AND H. G. SMITH. 



cent, of that constituent in the crude oil. The saponifica- 

 tion number for the ester plus the free acid was 3*8. 



The low boiling portion was repeatedly shaken with 50 

 per cent, resorcinol to remove the cineol, the residue well 

 washed, dried and redistilled. 



Between 157 - 132° C. 6*5 cc. were obtained, and 

 between 162 — 175° 10 cc. distilled. These gave the follow- 

 ing results: — 



Sp.gr. at 15° C. Rotation a D Ref. index at 20°0. 

 First fraction 0*8605 - 9°.2 1*4684 



Second fraction 0*8603 - 18°.6 1*4701 



These fractions were again rectified and 5 cc. obtained, 

 distilling below 158° O. 



This portion had rotation a D -7°.6; and refractive index 

 at 20° = 1*4683. The nitrosochloride was prepared with 

 it and this melted at 103 - 4°. It is thus evident that the 

 pinene is lsevo-rotatory, although less so than is the 

 limonene. 



The results obtained with the high boiling fraction suggest 

 that a sesquiterpene is present in some quantity, although 

 its identity remains at present undetermined. 



The oil obtained from the Oasino material was also 

 rectified, the results being in close agreement with those 

 given by tbe Port Macquarie sample. The high boiling 

 fraction was, however, somewhat larger in amount (43 per 

 cent.) and no less than 35 per cent, distilled above 265° O. 

 This high boiling fraction had specific gravity at 15° = 0*9355; 

 rotation <r D + 11°. 1, and refractive index 1*4959. The some- 

 what smaller amount of eucalyptol (26 per cent.) in this 

 oil is due to this increased amount of the high boiling 

 fraction. 



The oil from the Port Macquarie (15/1/12) material was 

 also rectified, the fractions, together with their physical 



