or THE ASH OF FOREST TREES, 



323 



8. Red Elm ( Ulinus fulva) . 



Tree sound. Averag^e diameter four feet from the base, 20 inches. Average thickness of 

 Average thickness of each layer, 0-0564 of an inch. Between 20 and 25 layers were 

 side wood, thickness 2J to 3 inches; the remaining layers were taken for inside wood, 

 uniform. 



Bark. 



oil 



Potash .... 

 Soda .... 



Chloride of sodium 

 Chloride of potassium 

 Sulphuric acid ... 

 Carbonic acid 



Lime .... 



Magnesia .... 

 Phosphate of peroxide of iron, 

 Phosphate of lime 

 Phosphate of magnesia 

 Organic matter 

 Silica .... 



Coal .... 



006 

 5-36 

 34-41 

 44-64 

 3-09 

 0-04 



J6-36 j 



210 

 2-8] 



Outside wood. 



13-43 



16-96 

 0-05 



0-81 



16-96 



31-00 



5-24 



0-65 



12-97 



2-93 



1-93 



1-31 



Heart wood. 



7-34 

 7-89 

 0-05 



4-67 

 26-59 

 34-79 



2-20 



1-35 

 11-28 



2-18 



1-60 



0-55 



Bark of twigs. 



3-79 

 7-87 

 trace. 



5-79 

 33-12 

 32-12 



1-68 



0-20 



600 



6-60 

 3-50 



bark, | inch, 

 taken for out- 

 Growth quite 



Wood of twig*. 



5-82 



19-74 



0-20 



8-94 

 12-69 

 17-72 



4-80 



0-40 

 25.80 



0-20 

 10-84 



0-40 



^8-98 S. 104-24 S. 100-69 S. 100-57 



107 -468. 



9. Cork Elm {Vlmus racemosa) 



The structure of this wood is singular and beautiful, and is probably readily distinguished 

 from any other wood by a transverse section (See PI. viii. fig. 2) . In this figure, the 



