EUCALYPTUS GLOBULUS. 



knightheads, hawse-timbers, apron, deadwood, knees, rudder, windlass, timber- and bilge-strakes 

 and ceiling between, clamps, stringers, shelf-pieces and lower deck-waterways, 9 years ; for light 

 watermark to wales, topsides, sheer-strakes, upper deck-waterways, spirkiting and plank-sheers, 8 

 years ; keel to first futtock-heads, thence to light watermark, 12 years. The wood of the Blue 

 Gum-tree is also very extensively used by carriage-builders and manufacturers of implements ; for 

 instance, for poles and shafts of light as well as heavy vehicles, for under-carriage work, swivel- 

 trees, spokes and rims, axle-beds, plough-bars, handles of axes, picks, shovels, forks, hoes and 

 hammers and all similar purposes. It is further used for telegraph-poles and for planking for 

 bridges and jetties ; for structures in water and for railway-sleepers it was formerly largely 

 employed, but during the latter years it has given place to the wood of E. rostrata for these 

 purposes. Rural settlers use the Blue Gum wood for fencing, especially for rails, when readily 

 attainable. The Marquis Cliateauvieux and Sir George Bowen mentioned to the author, that E. 

 rostrata is reared in such places of Bourbon and Mauritius as are exposed occasionally to violent 

 storms, where E. globulus, though not really fragile, is more apt to break than E.. rostrata. 



RESULTS of Experiments on the strength of Blue-Gum Timber instituted by Mr. James Mitchell. The 

 pieces subjected to test were 7 feet long by 2 inches square. 



Specific 

 tiravity. 



1-076 

 1-034 

 1-054 

 1-078 



987 

 1-071 



94i 

 1-089 



* 1'jirt of an old door-post. 



RESULTS of Experiments instituted by Mr. Laslett on the strength of Blue-Gum Timber. The pieces 

 subjected to trial were 7 feet long by 2 inches square. The weight was suspended iu the middle, 

 botli ends free. 



EXPERIMENTS ON TRANSVERSE STRENGTH. 



Each piece broke with a short fracture. 

 S = 1,869. 



