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	1.	The Scamander Mineral District / by W.H. Twelvetrees. by Twelvetrees, W. H. (William Harper), 1848-1919 Series: Geological Survey bulletin (Tasmania. Geological Survey) ; no. 9. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Hobart : John Vail, Govt. Printer, 1911 Availability: No items available. Add to cart (remove)
	2.	The Middlesex and Mount Claude mining field / by W.H. Twelvetrees. by Twelvetrees, W. H. (William Harper), 1848-1919 Series: Geological Survey bulletin (Tasmania. Geological Survey) ; no. 14. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Hobart : John Vail, Govt. Printer, 1913 Availability: No items available. Add to cart (remove)
	3.	The Bald Hill osmiridium field / by W.H. Twelvetrees. by Twelvetrees, W. H. (William Harper), 1848-1919 Series: Geological Survey bulletin (Tasmania. Geological Survey) ; no. 17. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Hobart : John Vail, Govt. Printer, 1914 Availability: No items available. Add to cart (remove)
	4.	On cement materials at West Arm, by W.H. Twelvetrees ... by Twelvetrees, W. H. (William Harper), 1848-1919 Series: Tasmania. Geological survey. Geological survey report ; no. 4 Material type: Text; Format: print ; Literary form: Not fiction Publication details: Hobart, Tasmania, J. Vail, government printer, 1914 Availability: No items available. Add to cart (remove)
	5.	On some gold-mining properties at Mathinna, by W.H. Twelvetrees ... by Twelvetrees, W. H. (William Harper), 1848-1919 Series: Tasmania. Geological survey. Geological survey report ; no. 5 Material type: Text; Format: print ; Literary form: Not fiction Publication details: Hobart, Tasmania, J. Vail, government printer, 1914 Availability: No items available. Add to cart (remove)
	6.	The Catamaran and Strathblane coal fields and coal and limestone at Ida Bay, Southern Tasmania / by W.H. Twelvetrees. by Twelvetrees, W. H. (William Harper), 1848-1919 Series: Geological Survey bulletin (Tasmania. Geological Survey) ; no. 20. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Hobart : John Vail, Govt. Printer, 1915 Availability: No items available. Add to cart (remove)
	7.	Asbestos at Andersons' Creek, by W.H. Twelvetrees ... by Twelvetrees, W. H. (William Harper), 1848-1919 Series: Tasmania. Geological survey. Mineral resources ; no. 4 Material type: Text; Format: print ; Literary form: Not fiction Publication details: Hobart, Tasmania, J. Vail, government printer, 1917 Availability: No items available. Add to cart (remove)
	8.	A deposit of ochre near Mowbray, by W.H. Twelvetrees, Government Geologist ... by Twelvetrees, W. H. (William Harper), 1848-1919 Series: Geological Survey bulletin (Tasmania. Geological Survey) ; no. 5 Material type: Text; Format: print ; Literary form: Not fiction Publication details: Hobart, Tasmania, J. Vail, Government Printer, 1917 Availability: No items available. Add to cart (remove)
	9.	The Bangor Mineral District / by W.H. Twelvetrees. by Twelvetrees, W. H. (William Harper), 1848-1919 Series: Geological Survey bulletin (Tasmania. Geological Survey) ; no. 27. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Hobart : John Vail, Govt. Printer, 1918 Availability: No items available. Add to cart (remove)

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