— 77 — 



citral content 78°/ , holding Schimmel's test. Fractionation of this 

 oil resulted in 80 °/ (in round figures), distilling over in a colourless 

 state between 118 and 133 (16 mm.); the separate fractions which 

 passed over between these limits gave clear solutions with 65 per cent, 

 alcohol, — in what proportion is not stated. On the basis of the 

 quantity of grass produced under experimental cultivation, and also of 

 the oil-yield, Bacon estimates and output of from 230 to 300 kilos 

 of oil per hectare, assuming that three crops can be cut annually. As 

 the cultivation is rather exhausting to the soil, the crop must be 

 changed after 3 years. 



Lunette Oil. The literature of essential oils contains only sporadic 

 data concerning the properties of West Indian limette oil obtained 

 by hand-pressing (hand-pressed oil of limette; hand-pressed lime oil; 

 ecuelled essence of limes), and it is therefore probable that in many 

 quarters uncertainty prevails as to the properties which the oil should 

 possess. We believe therefore that we shall render a general service 

 by mentioning the properties observed by us in the case of a warranted 

 pure quality of this oil, but in doing so we wish it of course to be 

 understood that pure oils may occur which will vary somewhat in 

 one or another of their constants: dj.50 0,878 to 0,901, mostly between 

 0,880 and 0,884, a D -|-32 5o' to -j-37°30 / , « D of the first 10% 

 of the distillate rather higher, or at most 4 lower, than «d of the 

 original oil, n D20° 1,482 to 1,486, acid no. up to 3,0, ester no. 18 

 to 30; residue of evaporation 10 to 14%, in one instance I7,8°/ 1 ). 

 The oil gave a cloudy solution in 4 to 10 vols, of 90 per cent, alcohol, 

 with separation of wax- or paraffin-like constituents. 



Oil obtained by distillation (distilled oil of limette; distilled oil of 

 limes; distilled lime oil) as well as the Italian variety of oil obtained 

 by pressure hardly count as commercial articles. What is known of 

 their properties is recorded in Gildemeister's and Hoffmann's work The 

 Volatile Oils, p. 477. In the Report referred to in the footnote we 

 also made mention of a distilled limette oil 



Linaloe Oil. Since April last the prices of Mexican oil have 

 fallen about 2 marks per kilo, but they stubbornly remain at that level. 

 The importers in Hamburg continue to be very firm, and in Mexico 

 — where the linaloe districts have again been visited by a member of our 

 staff — the suggestion of any impending fall in prices is repudiated, 

 Off-and-on small parcels have been sold at Marseilles below the price 

 of the day, but these were mostly of inferior quality and in one case 

 heavily adulterated with terpineol. The excellent linaloe oil from Cayenne 

 (essence de bois de rose femelle) also known as azelia oil, was available 



- 1 ) Report October 1904, 54. This oil also showed the abnormally high acid 

 no. of 6,0. 



