64 Report of Schimmel 8* Co. April /October 1917. 



of wood a year for building and furniture-making purposes. A continuation of the 

 exports from Austria and Hungary may be depended upon and it is probable that the 

 rich woods in the occupied zone of Russia will continue to supply us. This would 

 mean an additional production available in Germany of 46225,7 tons of extract valueing 

 46225700 oil. 



Even if this new process were only introduced gradually, we have another supply 

 of resin and turpentine products, i. e., all the coniferous wood imported for the pro- 

 duction of mechanical wood-pulp and cellulose, to the amount of 1217993 tons a year, 

 besides all roots and brushwood, without counting the chips, sawdust, and waste from 

 coniferous wood. The latter, owing to their being produced in a disintegrated state, 

 could all be turned over to an extracting process, and in point of fact to a much more 

 exhaustive one than the quick-maturing wood process, as the latter is particularly 

 adapted not to exhaust the wood, whereas the above-mentioned wood-waste and, in 

 fact, a great part of the home coniferous wood production (for instance that used in 

 the production of paper) actually demands a complete extraction of resin and fat. 



Of the supply of root- and brushwood, about 2,319 million tons could be used for 

 extraction which would give approximately 69570 tons of extract. On the whole about 

 240415,7 tons of extract could be depended upon. 



It may be calculated that only about half of the extract obtained consists of rosin 

 (and oil of turpentine) and the remainder 'of fat. Our production of rosin and oil of 

 turpentine amounts accordingly to about 120200 tons, which cover the peace demand 

 of Germany hitherto completely according to Wislicenus and Keutgen. The fat consists 

 principally of oleic acid. The oil yield from coniferous trees corresponds to almost 

 a quarter of the oil and fat quantity imported with oil fruits. 



Sawdust itself, by being freed from rosin, §c, develops a number of qualities 

 which make it more suitable for technical purposes. Under these conditions it is 

 perfectly dry and is a much better absorbent than before, which makes it much more 

 valuable for packing purposes, filling dry batteries, 8jc. It can also be used as filling 

 material in the production of fodder without any detrimental effects owing to presence 

 of rosin. 



The author gives no information as to the yield and quality of the oil of turpentine. 

 However, it must borne in mind that oil of turpentine is a pathological product. Whether 

 the oil, produced according to the above-mentioned process, contains pinene and what 

 qualities it has, does not appear from the abstract. Obviously it must be contained 

 therein if it is to be employed in the manufacture of artificial camphor, as the author 

 expects. 



In connection with this article, G. Austerweil 1 ) refers to the new sources of rosin 

 which were opened up during the last year in the Austro-Hungarian Monarchy, in the 

 adjoining countries, and in the occupied territory. These consist of: — 



1. The exploitation of the resin-supplies produced by the woods of the occupied 

 territories. 2. The utilization of such resin-supplies for the production of colophony 

 which were hitherto not available for that purpose. 3. The manufacture of colophony 

 by means of the extraction of roots, such as are left in the ground by a rational 

 management of forests. 



Outside Austria-Hungary about 1000000 trees were tapped, nearly all belonging 

 to the white-fir species (Pinus silvestris), which in comparison to the black-fir (Pinus 

 austriaca Laricio) have a much lesser resin output, so that the yield was not very high. 



!) Chem. Ztg. 41 (1917), 233. 



