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Project Gutenberg was the first provider of free electronic books, or eBooks. Michael Hart, founder of Project Gutenberg, invented eBooks in 1971 and his memory continues to inspire the creation of eBooks and related technologies today.The Elements of Blowpipe Analysis by Frederick Hutton GetmanAuthor: Getman, Frederick Hutton, 1877-1941,Language: English, Class: QD: Science: Chemistry, Release Date: Jun 25, 2010

《Scientific American Supplement, No. 613, October 1, 1887》
《La rana viajera》
《Wilford Woodruff, Fourth President of the Church of Jesus Christ of Latter-Day》
《History of Chemistry, Volume 2》
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