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	1.	A guide to the scientific examination of soils; comprising select methods of mechanical and chemical analysis and physical investigation. Tr. from the German of Dr. Felix Wahnschaffe. With additions by William T. Brannt...Illustrated by twenty five engravings. by Wahnschaffe, Felix (Gustave Albert Bruno Felix), 1851-1914 Braunt, William Theodore, 1844- [tr.] Material type: Text; Format: print available online ; Literary form: Not fiction Publication details: Philadelphia, H.C. Baird & co., 1892 Online resources: Click here to access online Availability: No items available. Add to cart (remove)
	2.	Mineralogy simplified. Easy methods of identifying minerals, including ores, by means of the blowpipe, by flame reactions, by the spectroscope, and by humid chemical analysis, based on Prof. von Kobell's Tables for the determination of minerals. With an introduction to modern chemistry. By Henri Erni. by Erni, Henry Edition: 2d ed., rev. and enl. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Philadelphia, London, E. & F.N. Spon, H.C. Baird & co; 1885 Availability: No items available. Add to cart (remove)

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