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prices which are at present paid for lemon oil and the other products. 
For this reason, it is necessary to caution against the opening up of 
new districts of production for the above-mentioned articles. 
Mandarin Oil. The harvest of mandarins this year can only be 
called feeble, and if, in spite of this, the season commenced with low 
prices for this article, this must be attributed to the fact that the devel- 
opment of the fruit had been impeded by the long-continued drought 
of the summer, and the fruit thus remained small and unsuitable for 
export in cases. For this reason the fruit had to be used up for the 
manufacture of oil. The small harvest has, however, already made itself 
felt, and during the last few weeks mandarin oil has fetched higher 
prices, which will probably improve still further in the course of the 
next few months. 
E. Charabot and G. Laloue^) have supplied a fresh contribution 
to the study of the production and distribution of organic substances in 
the plant 2) during its period of development, a study which was com- 
menced with the geranium plant {Pelargonium odoratissimum). The present 
examination deals with the formation of the essential oil, and especially 
of methyl ester of methyl anthranilic acid, in the leaves and stalks of 
the mandarin tree. It was found that the formation of the essential 
oil in the leaves takes place most strongly while they are young, and 
that the leaves are richer in oil than the stalks. At a later stage the 
content of terpene-compounds present in addition to the methyl anthranilic 
acid ester becomes lower in the leaves, but the terpene-content increases 
in the stalks. 
It appears, as a matter of fact, that during the vegetation the con- 
stituents soluble in water (methyl anthranilic acid ester) become richer 
in the leaves, but that the opposite takes place in the stalks. 
Orange Oil, sweet. The quantity of this oil produced during the 
present season is probably about equal to last year's production. In 
Sicily, where the conditions were favourable, more oil has been 
obtained than in the previous year, but Calabria shows a falling- off as 
compared with the last harvest. 
The prices of new oil commenced at 11,75 marks, but soon after- 
wards a slow rise in the value took place, which in the last weeks of 
December degenerated into an advance by leaps and bounds, by which 
the article was driven up to 14,50 marks. If these high prices have 
not led to an important increase in the production, this must be due 
in the first place to the low content of oil of this season's fruit, and 
^) Compt. rend. 137 (1903), 996. Bull. Soc. chim. III. 31 (1904), 195. 
2) Compt. rend. 136 (1903), 1467. Report October 1903, 40. 
