211 



In a laboratory under the direction of the Forestry Commission, New South 

 Wales (Report for year ending 30th June, 1917, p. 15), the following results were 

 obtained : — 



Samples of Wood treated in one-ton Lots. 



Timber. 



Species. 



Yields. 



Py re-ligneous 



Acid in 

 gallons. 



Wood tar 



in 



gallons. 



Charcoal 

 in ewt. 



Red S'.ringybark E. capitcUala 



Bloodwood ... ... ... E. conjnibosa 



White Gum ... ... ... E. hmmastoma 



Blackbutt E. jjilnlaris 



White Stringybark E. eugenioides 



Swamp Mahogany ... ... E. rohusta 



White Mahogany ... ... E. acmenioides 



Tallow-wood ... ... E. microcorys 



70 

 74 



64 

 80 

 71 

 76 

 68 

 80 



3 



3-5 



4 



3-5 



4-5 



3 



3-5 



4-5 



6-5 



7 



6 



6-25 



6-5 



6-25 



6-5 



6-25 



In the Report for the following year, at p. 20, we have — 



Wood Distillation. — The distillation of wood tests commenced last year are now 

 nearing completion, and some very interesting data has been derived from them. A 

 wide range of timbers was employed, and the results, with one or two exceptions, 

 show a remarkable uniformity. 



The following table shows the results for timbers on which a complete test has 

 been made : — 



Products of the Dry Distillation of New South Wales Timbers. 



Name of Timber. 



Local Name. 



Botanical Nam». 







Pyro- 



Tar 



Charcoal 



ligncous 



m 



in 



Acid 



gallons 



ewt. 



in 



from 



from 



gallons 



1 ton. 



1 ton. 



from 

 1 ton. 



Composition of Pyroligneous Acid. 



Acetic 



Acid, 



per cent. 



Methyl. 

 Alcohol, 

 per cent. 



by 



volume. 



Acetone, 



calculated 



from 



Acetic Acid, 



per cent. 



Red Stringybark .. 

 Bloodwood 

 White Gum 



Blackbutt 



White Stringybark 

 Swamp Mahogany.. 

 White Mahogany .. 

 Tallow- wood 

 Flooded Gum 



Woollybutt 



Blue Gum ... 

 Grey Gum ... 

 Ironbark, Red 

 Spotted Gum 

 Grey Box ... 

 Red Mahogany 

 Ironbark, Grey 

 Ironbark, Grey 



E. capitellata 

 E. corymhosa 

 E. hmmastoma 

 E. pilularis 

 E. eugenioides 

 E. robusta 

 E. acmenioides 

 E. microcorys 

 E. grandis... 

 E. longifolia 

 E. saligna 

 E. punctata 

 E. siderophloia 

 E. maculata 

 E. hemiphloia 

 E. resinifera 

 E. paniculata 

 E. paniculata 



i 



1 3 



6* 



70 



34 



7 



74 



4 



6 



64 



I 3J 



6i 



80 



n 



64 



71 



3 



61 



76 



34 



61 



68 



44 



61 



80 



54 



6i 



69 



3 



6 



71 



24 



5! 



62 



24. 



54 



62 



O 



64 



70 



2£ 



5 



61 



2 



51- 



64 



2' 



61 



68 



31- 



6 



70 



3 



61 



u 



5-49 



5-28 



5-55 



3-03 



5-49 



4-26 



4-68 



6-33 



4-20 



2-16 



4-14 



3-78 



5-55 



6- 



6-72 



5-97 



6-27 



5-79 



■97 

 1-34 

 1-66 

 1-16 

 1-3 

 1-68 

 1-45 

 1-34 

 1-58 



•27 



•39 



•83 

 1-00 

 1-1 

 1-23 



•7 



•5 



•3 



2-65 



2-55 



2-68 



146 



2-65 



2-06 



2-26 



3-06 



2-03 



1-04 



2-00 



1-83 



2-68 



2-9 



3-24 



2-88 



3-09 



2-80 



