— 88 — 



Tansy Oil. Good American oil continues to remain very scarce, 

 and the small supplies which we have obtained through the inter- 

 mediary of our New York branch, have quickly found buyers at 

 full prices. 



Tetranthera Oils. The Buitenzorg Annual Report for 1907 *), 

 contains brief references to tetranthera oils which, like those examined 

 by Charabot and Laloue and mentioned in our Report of April 

 last 2 ), were produced in the Malay Archipelago, in the Island of Java. 

 The Buitenzorg examinations related to three distillates, one each from 

 the bark, the leaves and the fruit respectively, and resulted as follows : — 



1. Oil from bark. Yield about 0,13%, d 2 6° 0,856, «i>-f- 2 o° 24', 

 contained 78,5 °/ aldehydes. 



2. Oil from leaves. d26° 0,890, « D — I2°i2 / , contained much 

 cineol and 22°/ aldehydes. 



3. Oil from fruits. Yield about 3,9%> (W 0,876, « D -f- I2°44', 

 on fractional distillation, 19% passed over up to 200 , 6i°/ between 

 200 and 220 , and 14% between 220 and 240 . The oil contained 

 85% aldehydes, of which 64% was citral. 



In connection with the above we may here refer to our own 

 results, obtained with tetranthera oils from the same source: — 



An oil frombark possessed the following characteristics : d^o 0,9062, 

 a D-j-i3°58 / , n D20° 1*46595, ester no. after acetylation 230,2, soluble 

 in 1 vol. and more of 80 per cent, alcohol. This oil was of a pale- 

 yellow colour; its odour reminded of Java citronella oil, and it ob- 

 viously contained much citron ellal, 76,5°/ , judging from the acetylation 

 number. 



An oil from leaves was also pale-yellow and had a pronounced 

 cineol-odour. It contained, in fact, about 35% of this body, obtained 

 with resorcinol in the form of a solid compound. Other components 

 parts were citral (6°/ determined with neutral sulphite) and probably 

 also citronellal. The constants were as follows: diso 0,8990, «d — 12° 2', 

 n D20° 1,46426, soluble in 1 vol. and more of 80 per cent, alcohol. The 

 diluted solution opalesces. 



Two oils distilled from fruits were of a lemon-yellow colour and 

 possessed an odour somewhat like that of lemongrass oil, which is 

 accounted for by the fact that their principal constituent was citral. 

 As the aldehyde determinations with bisulphite gave higher figures 

 than did those with neutral sulphite, it follows that in addition to 

 citral other aldehydes (citronellal, fatty aldehydes) which do not react 

 with neutral sulphite, must be present. 



*) Jaarboek van het Departement van Landbouw in Nederlandsch-IndiS 1907, 67. 

 Batavia 1 908. 



2 ) Report April 1908, 100. 



