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Chemical substances are often called 'pure' to set them apart from mixtures. A common example of a chemical substance is pure water; it has the same properties and the same ratio of hydrogen to oxygen whether it is isolated from a river or made in a laboratory. Other chemical substances commonly encountered in pure form are diamond (carbon), gold, table salt (sodium chloride) and refined sugar (sucrose). However, simple or seemingly pure substances found in nature can in fact be mixtures of chemical substances. For example, tap water may contain small amounts of dissolved sodium chloride and compounds containing iron,. | The Project Gutenberg EBook of Elementary Illustrations of the Differential and Integral Calculus by Augustus De Morgan This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.net Title Elementary Illustrations of the Differential and Integral Calculus Author Augustus De Morgan Release Date March 3 2012 EBook 39041 Language English Character set encoding ISO-8859-1 START OF THIS PROJECT GUTENBERG EBOOK DIFFERENTIAL INTEGRAL CALCULUS Produced by Andrew D. Hwang. transcriber s note The camera-quality files for this public-domain ebook may be downloaded gratis at www.gutenberg.org ebooks 39041. This ebook was produced using scanned images and OCR text generously provided by the University of Toronto Gerstein Library through the Internet Archive. Punctuation in displayed equations has been regularized and clear typographical errors have been changed. Aside from this every effort has been made to preserve the phrasing and punctuation of the original. This PDF file is optimized for screen viewing but may be recompiled for printing. Please consult the preamble of the IATeX source file for instructions and other particulars. IN THE SAME SERIES. ON THE STUDY AND DIFFICULTIES OF MATHEMATICS. By Augustus De Morgan. Entirely new edition with portrait of the author index and annotations bibliographies of modern works on algebra the philosophy of mathematics pan-geometry etc. Pp. 288. Cloth 1.25 net 5s. . LECTURES ON ELEMENTARY MATHEMATICS. By Joseph Louis Lagrange. Translated from the French by Thomas J. McCormack. With photogravure portrait of Lagrange notes biography marginal analyses etc. Only separate edition in French or English Pages 172. Cloth 1.00 net 5s. . ELEMENTARY ILLUSTRATIONS OF THE DIFFERENTIAL AND INTEGRAL CALCULUS. By Augustus De Morgan. New reprint edition. With sub-headings .
