— 4T — 
Oil of Guaiac-wood. The importation of raw material has 
ceased completely, and as a consequence the prices have advanced 
bv more than double. We were in the fortunate position of being 
able to provide our clients with abundant supplies, but at present 
stocks are entirely exhausted and no supplies of wood in sight. 
From a voluminous essay which was awarded a prize by the 
Medical Faculty of Rostock University, and which is entitled: "Con- 
tributions to the knowledge of guaiac preparations" we abstract the 
following details of the physiological action of oil of guaiac wood and 
of guaiol. 
Both preparations have the same action on the animal organism. 
Oil of guaiac-wood passes without injurious effect through the organism 
of mammals. The central paralysis observed on frogs is produced by 
many essential oils already in doses of a centigram. Guaiol also is 
free from toxic effect on warm-blooded animals, and it has no share 
(or only a very unimportant one) in the paralysing effect of the oil. 
It passes almost completely unchanged through the organism, and 
only traces of glycuronic acid can be detected in the urine. 
Hop Oil. The following estimate of this year's hop -harvest is 
made from a competent quarter: — 
in the^German Empire about 485 000 cwt. against 480000 cwts. last year 
of these in Bavaria 300000 „ „ 280000 
130000 „ 
40000 
35000 „ 
450000 „ 
75000 „ 
50000 „ 
400000 
The result in the individual countries may either be somewhat 
better, or worse, according to the weather-conditions prevailing during 
the next five weeks. 
Whilst last year important stocks were carried over into the new 
season, both by brewers and by merchants, this will not now be the 
case, and for this reason it will be necessary to reckon from the first 
on a larger demand. On the same grounds higher prices must be 
expected. 
The present quotations of our genuine hop-distillate are based on 
low purchase prices, and they may have to be raised. 
in Austria-Hungary 
of these in the Saaz district 
in Belgium 
„ the United Kingdom 
„ Russia 
„ France 
„ the United States 
2 1 7 000 
100000 
70000 
290000 
55000 
40000 
320000 
Contributions to the knowledge of guaiac - preparations , by W. Frieboes. 
Stuttgart, 1903. 
