— 141 — 



Turpentine Oil (Oleum Terebinthince). « D of the American variety 

 'almost invariably dextrorotatory, +1 to + 15°, occasionally also slightly 

 lasvorotatory. 



Turpentine Oil, Rectified (Oleum Terebinthince rectificatum). d|§ 0,860 

 to 0,865* (U. S. Ph.). 



l ) The minimum limit of value relates to a temperature of 15°, for ~ it is 0,853. 



Wintergreen Oil, Natural. 



a) Oleum Betulce (from Betula lenta, L.). di 5 ,5o 1,179 to 1,187; sol. in 

 6 vols. 70°/o alcohol. 



b) Oleum Gaultlierice (from Qaultheria procumbens, L). dis.so 1,180 to 1,187; 

 sol. in 6 vols. 70°/o alcohol. 



Wormseed Oil, American (Oleum Chenopodii). di 5 , 5 o 0,970 to 0,990 l ) ; 

 « D — 1 to —6°. 



J ) The minimum limit is too low. Comp. Report April 1908, 109. 



Japanese Pharmacopoeia. 



The Deutsche Japanpost of January 20, 1912 (No. 43, p. 14), contains an 

 article on additions to and alterations in the Fharm. Japonica III. Among 

 the preparations there mentioned is sandalwood oil, which is thus referred to: 



"Oleum Santali is a viscous, pale yellow or yellow, optically active 

 liquid (a D 2oo — 16 to —20°). Its b. p. lies between 275 and 280°, at 

 292 to 300° it loses over 70°/o in weight. When two drops of Oleum 

 Santali are introduced into a mixture consisting of 9 cc. glacial acetic 

 acid and 1 cc. hydrochloric acid, the solution should not acquire a 

 red or violet colour within the lapse of 5 minutes." 



It is not clear from the article in question whether these data are 

 already officially in force, or whether they relate to proposed alterations 

 only, as the "additions and alterations" are published without any comment. 

 Apart from the optical rotation, however, the amplifications cannot be 

 described as a happy selection. It would have been better if no details 

 had been given of the boiling point, or rather of the boiling temperature, 

 especially in view of the fact that those mentioned above are not even 

 correct. If the distillation is carried out in the proper manner, that is to 

 sw so that the entire mercury-column of the thermometer is surrounded 

 b^r the vapour arising from the liquid, it will be found that only a very 

 small portion of the oil (about 10°/o) passes over below 300°, which is 

 quite natural, seeing that the b. p. of santalol, which forms over 90°/o of 

 the bulk of the oil, lies above 300°. In any case the behaviour on 

 boiling depends altogether upon the experimental conditions (shape and 

 size of the flask, mode of fixing the thermometer, §c.) which explains, 



