422 
1889. J. H. Maiden. " Notes on some New South Wales Timbers." A paper 
read by invitation before the Engineering Association of New South Wales, and published 
in the Building and Engineering Journal of 25th May, 1889. 
This paper gives references to engineering tests on each timber referred to. 
1889. Maiden, J. H. " The Ironbarks of New South Wales." Read by 
invitation before the Sydney Architectural Association, and printed in the Australasian 
Builder and Contractor's Neivs, 9th September, 1893. 
Part I. Ironbarks in general; (a) Introductory; (b) Principal uses; (c) Talk 
of Ironbarks; (d) How to tell Ironbark; (e) Ironbark substitutes; (/) Ironbark and 
white ants ; (g) Properties of Ironbark ; (h) Where Ironbark grows. 
Part II. The various kinds of Ironbark. The paper concludes with " A 
Tentative Bibliography of the Ironbarks," containing references to twenty works, 
those containing engineering tests being specially indicated. 
1906. Nangle, J. ' Transverse tests of Jarrah made at Sydney Technical 
College." Proc. Roy. Soc. N.S.W., xl, ci (1906). 
The Jarrah is E. marginata, a Western Australian timber. 
1913. Nangle, J. " On some transverse tests of Australian and foreign 
timbers." Proc. Roy. Soc. N.S.W., xlvii, 165 (1913). 
The results of a number of Eucalypts are given in the tables at pages 168, 169. 
1918. In the Report of the Forestry Commission of New South Wales for the 
year ended 30th June, 1918, will be found notes on compression tests on 2-inch cubes, 
on the timbers of E. nitens, E. Muelleriana, E. obliqua, E. dives, and E. viminalis. Also 
transverse tests on the timbers of E. nitens, E. Muelleriana and E. obliqua. 
1920. A comparative test of Ironbark (E. paniculata) and Jarrah (E. marginata) 
conducted at the Engineering School, Sydney University, is quoted in New South Wales 
Forestry Commission Report, 30th June, 1920, p. 24. 
The same experimenter and the same report (p. 25) gives " Tests of Timbers for 
Aeroplane Construction, Ironbark (E. paniculata), Jarrah (E. marginata), and Mountain 
Ash (E. gigantea) being employed. 
In the report on these tests it is stated : " That one of the questions influencing 
the relative values of timbers for aeroplane construction is the ratio of the strength to 
weight per cubic foot." 
QUEENSLAND. 
1879. Byerley, F., C.E., in the Australian Engineering and Building News, 
November, 1879. 
He experimented (see Eucalyptographia under E. tessellaris) on seasoned specimens 
of 1 inch square, weights being applied to the middle of the rods between supports 
1 foot apart, the ends being free. 
