— 52 — 



It does not appear probable that the prices will give way in the 

 course of the summer; on the contrary, in case of a subsequent brisk 

 demand it is by no means impossible that they will harden again, as 

 the available stocks are all held firm. 



In German East Africa a large number of bitter oranges are used 

 for coagulating india-rubber, and the peel of this fruit had up to the 

 present remained unused. But, according to a communication in the 

 Pflanzer 1 ), the production of oil offers difficulties, which, as is well 

 known, can only be made in a rational manner by expressing it by 

 hand, as in Italy. In the absence of a suitable class of labourers, the 

 adoption of an apparatus has lately been contemplated, such as is 

 used in the West Indies for the manufacture of limette oil, and which 

 may allow of a separation of the oil from the peel of the fruit. By 

 means of distillation 1,4% of oil has been obtained at Amani from 

 the peel. 



Eucalyptus Oil. Two East- Australian species of eucalyptus not 

 yet or but little known, are described by R. T. Baker 2 ), namely 

 Eucalyptus carnea, sp. nov. (syn. E. umbra R. T. Baker, partim) and 

 E. Thozetiana F. v. M. We only quote here what Baker says on the 

 oils contained in these two plants. 



Oil of Eucalyptus carnea. The yield of oil only amounts to 0,155 °/ . 

 The oil, of which the constants are not mentioned, consists chiefly 

 of d-pinene; of eucalyptol it only contained about 5%, whilst phel- 

 landrene could not be detected in it at all. Baker's chemical collab- 

 orator H. G. Smith is at the moment still occupied with the examinat- 

 ion of an ester present in the oil. 



Oil of Eucalyptus Thozetiana F. v. M. The oil which was obtained 

 only in an extremely small yield, is mobile, and has in the crude 

 state a reddish colour; d^o 0,9257; npi 6 o 1,5026; it probably consists 

 chiefly of ester-like compounds. 



We read in the Chemiker- Zeitung^) that a factory for the pro- 

 duction of eucalyptus oil (from Eucalyptus Globulus) has been started 

 in Castelvecchio (Italy). Hooper 4 ) also reports that in British India, 

 in the Nilghiris, eucalyptus oil is manufactured. Ootakamund, Lovedale, 

 and Coonoor come under consideration as places of production. The 

 oil finds there a ready sale. 



x ) Der Pflanzer, Ratgeber fur tropische Landwirtschaft, published by the 

 Usamhara-Post , with the assistance of the Biologico - Agricultural Institute at 

 Amani 2 (1906), 176. 



2 ) Proceed, of the Linnean Soc. of N. S. W. 1906, part II, 303. 



8 ) Chem. Ztg. 30 (1906), 1083. 



4 ) Chemist and Druggist 70 (1907), 208. 



