130 BACON. 



diluted the •pleasant aroma of the flowers becomes very apjjarent. The 

 physical constants of one sample of this oil were as follows: Specific 



30° 30° 



gravity, ^=0.940; N~ = 1.4920; ester mimber=135; acetyl number= 



208. 



The oil is too dark to permit readings of its optical rotation to be 

 practicable. These constants are seen to agree quite well with those of 

 a very high grade distilled oil, and as was stated above, the different 

 odor is probably due to traces of delicate compounds present in the 

 extracted oil, which are destroyed during the process of distillation. It 

 is rather curious to note that when this extracted oil is shaken out with 

 water, a considerable amount of resin separates, carrying the distinctive 

 flower aroma, and the separated oil then has an odor resembling tliat of 

 methyl-p-kresol . 



These extracted oils should sell for a considerably higher price than 

 the best distilled oils, which fact, taken in consideration with the in- 

 creased yield and the impossibility of competition from synthetic oils, 

 offers a very attractive new industry to the Philippines. 



OTHER PRODUCTS. 



The leaves of an unknown species of Fagara collected in the northern 

 provinces were examined and found to contain a small percentage of an 

 oil which contained limonene and also probably a limonene derivative 

 which may also be obtained by the action of a solution of dilute, alkaline, 

 copper sulphate on limonene. The compound gives a crystalline deriva- 

 tive with phenylhydrazine and its nature will be taken up in a sub- 

 sequent publication. 



One of the mints, Tlyptis suaveoleiis Poir., known by the Tagalog name 

 of sub-cabayog, was also examined. 



. Two hundred kilos of this weed distilled with steam yielded only 27 grams of a 

 greenish oil, with a powerful menthol odor. Investigation proved that menthol 

 was the principal constituent of this oil, but the yield is much too small to 

 render the plant of any value for purposes of distillation. 



The leaves of Olaiisena anisum-olens (Blanco) Merr., a tree which is 

 rather abundant in some parts of the Philippines, have an odor which 

 is strongly like that of anise. Alcoholic extracts of these leaves also have 

 a very strong anise-like odor. It is possible that this plant can be used 

 locally in preparing "anisados" which are favorite alcoholic beverages 

 among the natives. It is interesting in this connection to note the state- 

 ment of Busse,''" who, speaking of the medicinal and economic plants of 

 Dutch East Africa, states that Claitsena anisata Willd. does not smell 



*' Ber. d. deutschen pharm. Ges. (1904), 14, 21.5. 



