21G 



). 



Wood-ash Teste.— Interesting information was obtained from an analysis of the ashes of several 

 species of timber. Two pounds of ashes of each timber were obtained in the following way : — Pieces of 

 the timber were burnt in an ordinary oil drum, which had been perforated with 1-inch holes about 3 inches 

 from the bottom to admit of sufficient draught. 



The tests are as yet incomplete, but the percentage of unburnt carbon in each sample and the 

 percentage of potash in the true ash has been determined for the following species : — 



limber. 



Botanical Name. 



District. 



Percentage of 



Unburnt 



Carbon in 



sample. 



Percentage of 



Potash 



in true ash. 



Mountain Gum 

 Mountain Ash ... 



Woollybutt 



Yellow Stringybark 



Yellow Box ~" 



Spotted Gum 



Blue Gum 



Grey Box 



Mountain Ash 



Grey Ironbark 



Red Ironbark 



Forest Red Gum 



Grey Gum ... 



Blackbutt 



E. goniocalyx 



E. Sieberiana 

 E. longifolia 

 E. Muelleriana 

 E. meUiodora 

 E. maculata ... 



E. saligna 



E. hemiphloia 



E. gigantca ... 



E. paniculata 



E. siderophloia 



E. tereticornis 



E. punctata ... 



E. pilularis 



Bermagui (Moruya) 

 >j >> ••- 



> j n 



Dubbo 



Wyong 



»> • •• • *• 



,, ... ... 



Tumbarumba 

 Casino 



,, ... ... 



,, ... ... 



Tarce 



30-60 

 30-57 

 17-60 

 9-70 

 16-74 

 20-02 

 26-14 

 24-81 

 20-02 

 22-89 

 21-32 

 47-03 

 24-66 

 40-31 



6-85 

 5-57 

 6-36 

 5-59 



•28 

 4-70 

 5-17 

 2-95 

 9-23 



•13 

 1-02 

 1-58 



•26 

 2-04 



(Report of Forestry Commission, New South Wales, for year ended 20th June, 

 1918, p. 22.) 



Some determinations of Ashes of Eucalypts by J. C. Brunnieh, Agricultural 

 Chemist, will be found in the report of the Director of Forests for 1918 in Annual 

 Report of Department of Public Lands, Queensland, p. 60. 



Explanation of Plates (220-223). 

 AUSTRALIAN HYBRIDS. 



PLATE 220. 



Eucalyptus sidcroxylon A. Cunn. 

 la. Juvenile leaf ; lb, mature leaf ; lc, flowers; Id, anther; le, fruits not quite ripe, and showing remains 

 of filaments. Maryborough, Victoria. (J. Blackburne.) 



Eucalyptus sideroxylon-lcucoxylon hybrids (2 and 3). 



la. Juvenile leaf; 26, mature leaf; 2c, buds and a flower; 2d, anthers; 2e, fruits. Black Waterholes, 

 near Redcastle, Victoria. (W. S. Brownscombe, No. 12a, through J. Blackburne.) 



3a. Twig, bearing an intermediate leaf, buds and a flower; 3&, mature leaf; 3c, anther; 3d, immature 

 fruit, showing style and stigma, and deciduous ring; 3e, fruits, showing one end on. Black 

 Waterholes, near Redcastle, Victoria. (W. S. Brownscombe, No. 11a, through .J. Blackburne.) 



Eucalyptus le.ucoxylon F.v.M. 

 4a, lb. Glaucous juvenile leaves; 4c, mature leaf ; id, anther; 4c, immature fruits, showing stamens and 

 ring; If, fruits. Maryborough, Victoria. (J. Blackburne.) 



