Raamatud Henry Erni
Coal, Oil and Petroleum: Their Origin, History, Geology, And Chemistry
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Mineralogy Simplified: Easy Methods of Identifying Minerals, Including Ores, by Means of the Blow-Pipe, by Flame Reactions, by Humid Chemical Analysis, and by Physical Tests
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Mineralogy Simplified: Easy Methods of Identifying Minerals, Including Ores, by Means of the Blow-Pipe, by Flame Reactions, by Humid Chemical
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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
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Coal Oil and Petroleum: Their Origin, History, Geology, and Chemistry
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Coal Oil and Petroleum: Their Origin, History, Geology, and Chemistry
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Mineralogy Simplified: Easy Methods Of Identifying Minerals, Including Ores, By Means Of The Blowpipe, By Flame Reactions, By The Spectroscop
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Mineralogy Simplified: A Short Method Of Determining And Classifying Minerals, By Means Of Simple Chemical Experiments In The Dry And Wet Way
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Mineralogy Simplified: A Short Method Of Determining And Classifying Minerals, By Means Of Simple Chemical Experiments In The Dry And Wet Way
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