— 37 — 



be made and a certificate of condition be granted along with the 

 Customs pass. 



Merchants should remember that by a decree issued in 1903 the 

 adulteration of produce is a criminal offence. Attention was also 

 drawn to this fact in the Zanzibar Gazette of October 3, 1906. 



Oil of clove leaves. From the Imperial Institute of the United 

 Kingdom, the Colonies, and India, at London, we received an oil of 

 clove leaves originating from the Seychelles, which resembles ordinary 

 clove oil in the colour and odour. The properties of this oil are as 

 follows: di 5 o 1,0493; a B — i°4o'; n D20 o 1,53329; about 87% eugenol 

 (determined with 3 per cent, caustic soda liquor in a cassia flask); 

 soluble in 1 and more vol. 70 per cent, alcohol. 



Coriander Oil. The coriander harvest in Russia, Moravia and 

 Hungary has shown exceptionally favourable results both in quality 

 and quantity, so that there is every prospect that in the coming half- 

 year this important oil will again be available at the previous moderate 

 prices. The quotations have continuously declined in the course of 

 the summer, and it is therefore probable that a further reduction will 

 take place in the next few months. We are this season working up 

 considerable quantities of coriander, and hope that this will enable 

 us to meet at all times the demand for our favourite own distillate. 



Elemi Oil. A detailed work by Clover 1 ) has appeared on 

 the terpenes of Manila elemi oil. The author has collected on the 

 spot a large number of samples of the resin which chiefly originates 

 from Canarium luzonicum (according to Tschirch and Cremer from 

 6. commune). In the native language the tree is called pili; the 

 S resin has the Spanish name brea. The manner of producing the resin 

 * resembles that of turpentine; the further working up for essential oil 

 was carried out in the usual manner by steam distillation, during 

 which, towards the end of the process, it was necessary to distil in 

 vacuo, in order to drive the last portions of oil out of the resin 

 which was then becoming more viscid. The commercial elemi is 

 in the fresh state soft, sticky, and non-transparent; it has a pleasant 

 odour, and a spicy, somewhat bitter taste. It dissolves readily in 

 ether, chloroform, and benzene, — all but small quantities of water and 

 a granular substance. In the other usual solvents, elemi only dis- 

 solves if large quantities of solvent are used; if a small quantity of 

 alcohol is employed, 2 5°/ of a white crystalline residue remain behind. 

 For fresh elemi bought at Manila, the yield of oil often amounts to 

 25 to 3O°/ ;' Gildemeister and Hoffmann state a yield up to 



1 ) Philippine Journ. of sc. 2 (1907), A. 1. 



