TRANSVERSE TESTS OF AUSTRALIAN AND FOREIGN TIMBERS. 165 



On some TRANSVERSE TESTS of AUSTRALIAN and 

 FOREIGN TIMBERS. 



By James Nangle, f.r.a.s., 

 Acting Superintendent, Technical Education, Sydney. 



[Read before the Royal Society of N. S. Wales, October 1, 1913. .] 



I. Introduction. 



As our Australian timbers are coming more and more 

 into vogue for such purposes as railway carriage construc- 

 tion, carriage building, and other classes of work, enquiries 

 are continually being received for data in regard to their 

 relative strengths. It will therefore be likely that the 

 results of some tests made at the Sydney Technical College 

 under my supervision will be of value. For comparison, 

 foreign timbers have also been tested and the results 

 appended. The timbers used in this investigation are with 

 one or two exceptions, well known or just coming into the 

 market, as Eucalyptus delegatensis and E. amygdalina, 



II. Botany and Remarks on Individual Timbers. 

 I am indebted to Mr. R. T. Baker, Curator of the Techno- 

 logical Museum, for the botanical names of the specimens. 

 The New South Wales timbers are from logs obtained by 

 the Museum collectors from time to time, and the names 

 are founded on botanical material collected with each tree 

 and now preserved in the Museum Herbarium for future 

 reference and comparison. 



In nearly every instance three specimens were taken, so 

 that the results might give a fair average of the respective 

 timbers. In one or two instances, such as the "Grey" or 

 44 White Ironbark," it is difficult to account for the apparent 

 discrepancies, as the conditions of seasoning, testing, etc., 



