— 95 - 



is said to yield as much resin in twelve hours as could be obtained by 

 the old "boxing"-method in about twenty years (!?), Walker believes that 

 in the course of time his method will supplant the present processes in 

 vogue in the turpentine-industry, seeing that, in the opinion of experts, 

 the supplies of light-wood, notwithstanding it is largely used for railway- 

 sleepers, are large enough to cover the world's requirements of turpentine- 

 oil and resin. A further possible source of employment of the oil which 

 has been freed from oil and resin is to be found in the wood-pulp industry, 

 and Walker unfolds a picture of the future in which the lumber-, turpentine- 

 and wood-pulp industries will be placed upon a common sylvicultural basis. 



Vetiver Oil. So far as regards oil of our own distillation, which is 

 unquestionably preferred by the perfumers, prices have remained unaltered, 

 seeing that sufficient quantities of excellent vetiver root were available 

 from Java and that we had therefore no difficulty in replenishing our 

 stocks. On the other hand it has been found necessary, in the course of 

 the summer, to advance the quotations of the cheaper oil from Reunion, 

 because all the parcels which could be discovered in the European markets 

 proved to be seriously adulterated. Reports are current that the production 

 has lately been much reduced owing to its unremunerative character, yet 

 the fact remains that from the beginning of January to the end of July 1911 

 about 446 kilos were exported, as compared with 506 kilos in the cor- 

 responding period of 1910. No very large decrease in the production is 

 therefore evident at present. 



Wallflower Oil. From the flowers of wallflower (Cheiranthus Cheiri^ L; 

 N. 0. Cruciferas) E. Kummert 1 ) obtained by means of extraction with solvents 

 of low b. p. a dark-coloured extract of an ointment-like consistency. The 

 extract was freed from wax and vegetable fats by means of strong alcohol 

 and subsequently subjected to steam-distillation. By this method the author 

 obtained a yield of 0,06 °/o of an oil possessing the following constants: 

 b. p. 40 to 150° (3 mm.), d 15 o 1,001, acid v. 0,35, ester v. 20,0, sap. v. 20,35. 

 In the concentrated state the oil had a disagreeable odour, when strongly 

 diluted it reproduced the natural odour of the flowers. 



Distilled in vacuo at 3 mm. only small proportions of bodies boiling 

 below 40° passed over. These bodies had an unpleasant odour, and were 

 probably compounds of the nature of mustard oil 2 ). The higher-boiling 

 fractions, when treated with semicarbazide, yielded a small proportion of 

 a semicarbazone-mixture which was decomposed with oxalic acid, when 

 an odour of hawthorn and violets became perceptible, a fact which may 

 point to the presence of anisic aldehyde and irone. 



*) Chem. Ztg. 35 (1911), 667. 



2 ) Wallflower seed contains a sulphone, cheirolin, in a glucoside-like combination. 

 Comp. Report October 1910, 85. 



