19 
rotation to 5 the heh fistond of to the left and the content of total geraniol insufficient 
altogether, for it amounts to 54 per cent. at least in the normal commercial quality. 
Besides, some alcohols that have nothing to do with citronella oil, seem to have 
nfluenced the determination of the total geraniol, so that the content of real total 
geraniol would be still lower than indicated above. Hence, the falsification is very 
¥ siderable and the smell indicates that a, camphor oil Bacon has been added. 
~ 
oe | some sire ago, K. Kafuku*) reported on the bpaueriies: of a.citronella oil distilled 
in Formosa. Now S. Furukawa?) mentions such an oil, but which has a considerably 
density (d0.9601). The contents of total geraniol amounted to 22.15 per cent., 
at of total citronellal to 11.05 per cent. In his Conn: the Formosa oil is theietore 
of less value in perfumery than the Java or Ceylon products. It resembles in its 
ze) position the Ogarugaya oil, from a variety of Andropogon Nardus; L., growing in Japan. 
J - Furukawa found in the Java oil eugenol, chavicole (2) and inree acids, including ~ 
citronella acid. Nothing is mentioned | in the abstract, BOW ENE, as to how the presence ~ 
of these bodies was proved. 
BB Reeve the idilation of Java citronella oil, see Ps - of this Report. 
ee E Ginke Oil. According to the last British Colonial Report) the atea Hace clove 
Baizy tion in Zanzibar and Pemba is estimated, this year, at 52000 acres with about . 
4700000 bearing trees. The large plantations are in the hands of Arabian land-owners, 
ith but a few exceptions where the proprietors are Hindoos. The yield varies con- ~ 
Bicrabsly, as the trees give specially abundant crops every 3 or 5 years. The annual 
verage for the last years was about 14000000 lbs.. The largest crop was that of. 
4911 /12 with 28000000 Ibs., 20000000 of which were supplied by Pemba, whereas the 
mallest was that of 1912/13 with only 4750000 Ibs., Pemba’s share being 3500000 Ibs. 
_ The prices fluctuate of course according to the yield. In the last years, it was 
Detween Rs. 8.8 and Rs. 27.9 per frasilah of 35 Ibs.. The Government levies a tax of 
25 per cent. on all the cloves exported. The deliveries of the crops 1916/17 (1st July 1916 
to ee June 1917) and 1917/18 (up to April 1918) were as follows: — : 
1916/17 : 1917/18 
Zanzibar . . . . 7305166 Ibs. © 2226686 Ibs. 
Pemba . . . . 10602200 ,, 7896671 , 
Total: 17907366 Ibs. 10123357 tbs. 
The prices fluctuated during this time between Rs. 12.25 and Rs, 27.56, for Zanzibar, 
and between Rs. 10.37 and Rs. 27. 25, for Pemba (per frasilah of 35 Ibs.). The high price 
was due to the favourable economical conditions in India, whose demand it was 
| mpossible to satisfy completely, on account of diminishing deliveries. : 
For obvious reasons, .it was impossible to distil considerable quantities of cloves 
echriany, during the war and some time will be required until the present scarcity 
f clove oil for home consumpHpt can be remedied. 
. - Oil of Coleus ep esihens The /abiata Coleus amboinicus, Lour. (C’: carnosus, Hassk.) 
§ One of the remedies most appreciated by the natives of Java. The leaves have a 
Se 
- 4) J. Chem. Ind., Tokyo 19 (1916), 411; Jowrn. Soc. Chem. Industry 87 (1916), 865; Report October 1917, 15. 
w J. Chem. Ind., Tokyo 21. (1918), 515; Journ. Soc. Chem. Industry 37 (1918), A716. — *) Chemist and 
I (1919), 739. 
2* 
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