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	1.	The western hemlock. By Edward T. Allen. by Allen, E. T. (Edward Tyson), 1875- Series: United States. Bulletin ; no. 33. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Washington, Govt. print. off., 1902 Availability: No items available. Add to cart (remove)
	2.	Comparison of a wet and crucible-fire methods for the assay of gold telluride ores, with notes on the errors occurring in the operations of fire assay and parting / by W. F. Hillebrand. by Hillebrand, W. F. (William Francis), 1853-1925 Allen, E. T. (Eugene Thomas), 1864-1964 [joint author.] Series: U.S. Geological Survey bulletin ; no. 253. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Washington, Govt. Print. Off., 1905 Availability: No items available. Add to cart (remove)

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