50 REPORT OF SCHIMMEL § Co. OCTOBER 1914/ APRIL 1915. 
_ Htibl’s iodine solution. The latter should be strongly acid, it ought to contain f.2. 7,5 
to 10 g. hydrogen iodide per litre, and the work should be done at a temperature 
of 18°. No exact results are obtained in this case with Wijs’s iodine solution. 
On the cultivation of wormwood in Austria see page 04. ; ; 
Wormseed Oil, American. On account of the unpleasant taste of American 
wormseed oil the following form of prescription is recommended in the Pharmazeutische 
Zeitung [59 (1914), 928]: a mixture of 3 parts of wormseed oil and 30 pafts of castor 
oil is worked in the usual way into an emulsion of 100 parts, to which small quantities 
of saccharin, peppermint oil, lemon oil, Ceylon cinnamon oil and ethyl acetate are added. 
About further prescriptions for making up this remedy compare Reports October 
1906, 82; October 1907, 99; October 1910, 143 and April 1914, 99/100, 
In No. 224 of the Public Health Reports of October 2"4, 1914 (Washington), M.G. Motter 
advocates the use of American wormseed oil in the treatment of hookworm disease, — 
a treatment about which we had occasion to report some time ago’). Thymol, which 
had formerly been used in fighting this disease, is very difficult to obtain in America in 
consequence of the war. The author produces nothing new in respect of the use of the oil. 
The resolution of i-ascaridolic acid into its optical components is discussed on 
page 107 of this Report. 
Ylang-Ylang Oil. On page 135 of our Report November 1908 we mentioned two 
ylang-ylang oils obtained from the Seychelles, which had been described by the Imperial 
Institute of London. Meantime, this Institute”) has received two further ylang distillates 
from the same place, one of which owing to its constants must be classed among 
cananga oils, whereas the other shows the characteristic ylang oil values: — 
1) diso 0,9200; &p2:0 — 30°; acid v. 4,2; ester v. 42,2; it yields a clear solution in an 
equal volume of 90 p.c. alcohol. On further addition of the solvent turbidity sets in. 
2) disc 0,9567; &p90 — 28° 5’; acid v. 3,3; ester v. 126,0; ester v. after acetylation 181; 
soluble in 90 p.c. alcohol up to 0,8 volume, beyond which point turbidity sets in. 
As is specially pointed out, even the second oil cannot compare with a good 
Manila distillate, as the odour was hardly pleasant and rather pungent. 
After a lapse of over 3 years the constants of sample No. 1 were once more 
determined, when slight increases in specific gravity and in the ester value were 
observed: dis0 0,9250; apx0 — 28° 36’; acid v. 2,6; ester v. 53,5; soluble in */s volume 
of 90 p.c. alcohol. From 1 volume upward turbidity set in. 
In the same publication®) an ylang-ylang oil from the island of Mauritius is mentioned, 
to which we already referred in our last Report (page 101). The values found by the 
Imperial Institute differ somewhat from those given by ourselves: diso 0,9883; @p20—30°; 
acid v. 7; ester v. 173, ester v. after aCetylation 211; soluble in 0,1 to 2,5 volumes of 
90 p.c. alcohol, on further addition turbidity sets in. English experts valued the oik 
at 3/- to 4/- per oz. 
Concerning Yu-Ju Oil see page 42 of this Report. 
1) Comp. z.a. Report October 1918, 108. — 7) Bull. Imp. Inst. ; _— [bidem xs 
Cc ha. BR Octob 9 8 - 12 (1914), 230 %) Ibidem 230 
