520 AUSTRALIAN NATIVE PLANTS. 
EXPERIMENTS ON THE TRANSVERSE STRENGTH OF THE WooD OF 
E. siderophloia, by Baron Mueller and J. G. Luehmann. 
The specimens were 2ft. long and 2in. square. 
Deflection. Total Value of Specific gravity. 
5 weight strength, ' 
pees. At the | required to sa Absolatel 
ee crisis of | break each} S= Air-dried. solutely 
weig'n8 | breaking. piece. 4BD* dried. | 
78o0lbs. 
Inches. Inches. Pounds. 
02 63 3873 2905 1.075 936 
02 56 3752 | 2814 1.129 953 
Diameter, 20 to 40in.; height, 70 to 1ooft. 
Southern Queensland, south to Port Jackson. 
320. Eucalyptus Sieberiana, 7.v.17., (Syn. Z. virgata, Sieb., the 
species name in B.FIl.); N.O., Myrtacez, B.FI., iii., 202. 
Called ‘‘ Cabbage Gum”’ in the Braidwood district (New South Wales); 
‘Mountain Ash” about Berrima, Illawarra, and Twofold Bay (New South 
Wales). It isa “ Stringybark.” It is called “‘ Gum-top” in Tasmania and 
at Wilson’s Promontory (Victoria). It is “Ironbark” in Tasmania, and 
occasionally “ Blackbutt.” ‘It is the “‘Yowut” of the Gippsland abori- 
ginals, 
This timber is considered, in the Braidwood and Monaro 
districts, N.S.W., so soft and perishable for ordinary purposes that 
it is called ‘‘ Cabbage Gum,” but it is nevertheless very durable 
underground. (Bauerlen.) The trunk is sawn into good timber, 
and it is also used for posts and rails; it is, amongst other pur- 
poses, recommended for shafts. It is hard, and when seasoned 
difficult to cut, but burns well even when fresh. (Mueller.) The 
’ wood is of superior quality, light, tough, and elastic; is used for 
swingle-trees of buggies, ploughs, etc., but will not endure under- 
ground. (Howitt.) The testimony of Howitt and Bauerlen as to 
the durability of this timber is very conflicting. Howitt’s observa- 
tions were made in Gippsland (Victoria), while those of Bauerlen 
were made near Braidwood (N.S.W.) Until more light is thrown 
