418 
The apparatus used for ascertaining the direct cohesion was as follows : Lengths of about 16 inches 
were cut from the pieces broken transversely, and turned in an ordinary lathe to about 1J inches 
diameter ; shout 1 inch in the middle was further turned down to thiee-eighths of an inch diameter, which 
was then carefully squared to a quarter of an inch with a fine file ; and this in each case formed the portion 
to be tested. Through a hole accurately bored across the thick part of these pieces, near each end, short 
bolts were passed ; to these bolts were attached short pieces of good rope, having eyes spliced in each end 
to receive them. A second piece of lope, passed through the first in the form of a link, sustained the scale 
at the lower end; and a similar one at the upper end hooked the beam which held the whole. 
1902. A. 0. Green. " The Timber Industry " (published separately as 
' Tasnunian Timbers ; their qualities and uses "), Proc. Roy. Soc., Tas., 1902 (p. 35). 
This paper contains a number of results of tests of strengths of Tasmanian 
timbers, including some Eucalypts. The principal species dealt with are Blue Gum 
(E. globulus), Stringybark (E. obliqua), Swamp Gum (E. regnans). 
VICTOKIA. 
1879. " Experiments on the Tensile Strength of a few of the Colonial Timbers," 
by Fred. A. Campbell, C.E., Trans. Roy. Soc., Victoria, 1879. 
As the power I could bring to bear on the specimens did not exceed 1 ton I found it necessary to 
work upon specimens with a sectional area of one-sixteenth of an inch. . . . The apparatus used was 
of the roughest description, but it answered its purpose. The specimens were held at each end by 
wrought-iron clips (figures are given with the paper), and then hung and pulled by means of a lever. 
Using known weights, and sliding them along the lever, which was graduated, I readily obtained the 
breaking weight of the specimen. The weights were always applied in such a way as to cause a gradually 
increasing stress upon the specimen, perhaps fifteen to twenty minutes being taken to work up to the 
breaking weight. 
1880. ' Results of experiments on the transverse strength of the wood of 
E. globulus" by Baron von Mueller and J. G. Luehmann. 
' Results of experiments on the transverse strength of the wood of various 
Eucalypts," by the same. 
Both these tables are published in a Catalogue of Timbers of Victoria in the 
Technological Museum of Melbourne, by Baron Mueller. They were originally published 
in the Sixth Decade of the learned Baron's Eucalyptographia under E. globulus. 
The experiments were performed on pieces of 2 inches square, and 2 feet long 
between the supports, the weight suspended in the middle, both ends free. The 
E. globulus timber was seasoned for nine months ; similar information is not given in 
regard to the other timbers. 
1884. "Official Report of the Carriage Timber Board, Victorian Railways, 
Melbourne, 1884." This Board was appointed on a motion in the Victorian Parliament, 
with a view of ascertaining, by various experiments, the best kind of timber grown in 
the Australian colonies adapted for the construction of railway vehicles. 
