502 AUSTRALIAN NATIVE PLANTS. 
304. Eucalyptus pilularis, Sm., (Syn. 2. persicifolia, DC.; £.- 
semtcorticata, F.v.M.; £. ornata, Sieb.; £. ¢ncrassata, Sieb.); 
N.O., Myrtacez, B.FI., iii., 208. 
The ‘‘ Blackbutt,” or ‘‘ Great Blackbutt.” From the great hardness of 
its wood it is often known as “ Flintwood.” It is a ‘‘ Mountain Ash” of 
Illawarra (New South Wales), ‘‘ Willow,” or ‘‘ White Top,” of the country 
about Berrima (New South Wales). Sometimes it is called ‘Stringybark. 
By the aboriginals of South Queensland it is known as ‘‘ Tcheergun,” or 
‘© Toi.’ A New South Wales aboriginal name is ‘‘ Benaroon.” 
Furnishes excellent timber for house carpentry, or any pur- 
pose where strength and durability are required, e.g., bridge 
planking, ships’ decks, paving cubes, etc. It can be used for 
telegraph poles and railway sleepers. (Woolls.) It is of a 
yellowish colour. Captain Ward, R.E., found the deflection of a 
sample of this timber from Berrima, N.S.W., to be 1.35in., the 
material used being 4ft. long by 2in. square, loaded in the middle 
with a weight of g8olb., while the elasticity remained unimpaired, 
breaking under a weight of 1232lb.; specific gravity, .ggo (61lb. 
140z. per cubic foot.) He spoke of it as a very strong timber, but 
warping and twisting when exposed to the sun, and requiring 
gradual seasoning off the ground. (Sydney Mint Expts., 1860.) 
Baron Mueller observes that this timber is not so well known as it 
ought to be. Its occasional liability to gum-veins has doubtless. 
prejudiced it in popular favour. A slab in the Technological 
Museum, which has been seasoned over twenty-five years (having 
been exhibited at the London International Exhibition of 1862), 
has a weight which corresponds to 61lb. 70z. per cubic foot. The 
Rev. Dr. Woolls observes of this tree: ‘‘ Though rapid in growth, 
it is one of the most valuable species in the county of Cumber- 
land, . . . and next to the White Ironbark (£. szderophloia); 
it is capable of enduring a greater crushing strain than any other 
Eucalypt.” 
Following are some samples in the Technological Museum : 
1. “ Blackbutt,” or ‘‘ Flintwood.”” Warm brown colour, close in 
the grain, and very strong; gum-veins. (Victoria.) 2. “ Black- 
butt.’’ Light coloured, but dirty; full of shakes, works fairly 
