tol ¥, * Wie eH 4 
i vf $M ee 4 aes rh is 
¥ « A Prat th.’ ehida 3 e Di, we i 
S C AND O° ES ON ESSE 9 
ey he ee as «) A 
; Oc 7 Bae Rae 
out Tbeconies, oP thie mo when. ‘cade ‘ai is prepared, 
| "subjects to 23 comparative investigation. the products which, on the one hand, 
“were sabtathed. on dry distillation from the wood of Juniperus Oxycedrus, on the other 
of wood yielded on an average. 81.11 grams of true cade oil, whereas only 56.26 grams 
F distillate were obtained from wood deprived of its essential oil. . The difference 
the. product obtained from wood deprived of its essential oil, about 10 per cent. 
hes of. its essential oil has been used. The. saponification values for the oils 
) the low saponification value. of ‘the essential oil. contained in the normal product. 
dn. any case, ‘the saponification value might Serve as a criterion for the purity of the 
é 
a considerable. proportion of esters. ; bo a 
Caras of oil per kilo, in addition to’ water, tary and a brilliant black residue. 
and “more liquid than cade oil. 5 Be cent. soda ie deprives | it: of 3.8 per cent. of 
pl henols. : 
‘\ 
mobile than cade oil and eRe ne 9 per cent. of constituents soluble in alkali. 
- 
el bee only alang-alang grass*) can grow, all the other plants die.’ The Halifur, 
Bbignbourhood, He does not even try to destroy it. 
« t burning down. If the alang-alang grass is burnt repeatedly, many bajuput trees ve 
shri bs die down, it is true, but they sprout again afterwards. 
; As distinction is made between Hansen ils merah with red and. ae poet with 
wh ite wood. pee hae, 5 f Me 
; In Buru, - the oil is distilled son the leaves of shrubs from Six. months old and 
up ards and only when this material is exhausted ey the leaves of the trees used. 
E> As: ‘soon as the cajuput shrubs in- the neighbourhood are used up, the “ketel’’>) has 
its value; however, this does not manner very ee as Ene: shrubs grow thickly. 
) Seas de Pieityi: et! Choi Vu. 49 (1919), 33, 65; Chant. ‘Zentralbl. 1919, iI. 789. — ® 2) The name of 
is used already for the distillate obtained ‘by steam from the Atlas cedar, Cedrus atlantica, Man. Comp. 
r ‘April 1902, 12. — %) Teysmannia 25 (1914) 33. The author was at the time Civil Governor of Buru. 
) ‘Alang-alang grass (Imperata arundinucea, Cyrill., var. Koenigii, Benth.; Graminew) is from 1 to 2 m. 
and develops luxuriantly at once wherever the forest is cleared. It is a plague for agriculture, as its 
ation is extremely difficult. It seems to disappear in gardens, where pine-apples are Brower? or near 
1a Camara. —- » See page 80, foot-note ia} 
—_ - ¥ 
“hand resulted after previous removal of the essential oil. On direct distillation, 1 kilo 
i> The: wood of Juniperus virginiana, treated ‘in the « same way as rT Sot: yields 
The oil, called virginol, ete: Strongly of pyroligneous. acid, is. lighter than ‘water 
‘Cajuput Oi. a H. Gg Schi 58) inte. Midchesed: on page 80 of this Report, 
ere are various ‘interesting communications. regarding cajuput | oil and the cajuput tree. 
It occurs all over the island of Buru, but least on the rocky southern part. Where 
~ 
eee to the oil content of the wood. -Hirschsohn- and Adam’s reactions do 
* not permit of differentiating between the two distillates. When shaken with 5 per cent. 
‘soda lye, the normal true cade oil gives of 5 percent. of phenole- like constituents; 
reed from the phenols are 78 and 89, respectively. This difference is partly. explained 
cade oil. It indicates that, in addition. to piace He) constituents, cade oil contains 
Dry distillation of the ou of the Lebanon cedar yielded on an average 75 grams 1 
f libanol*) per kilo, an. oil smelling of -pyroligneous acid, lighter than water, more — 
. the native of Buru shifts his garden, as soon as a -cajuput tree shows itself in the | 
_ The tree is most tenaceous of life and cannot even be extirpated through felling 
ae 
ioe 
F. ye 
ee es 
4 1erre found, that fractionated distillation is a good method. of characterizing the 
"genuine cade oil, but that the differences do not. ‘suffice to decide, whether wood — 
