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This volume is produced from digital images created through the University of Michigan University Library's large-scale digitization efforts. The Library seeks to preserve the intellectual content of items in a manner that facilitates and promotes a variety of uses. The digital reformatting process results in an electronic version of the original text that can be both accessed online and used to create new print copies. The Library also understands and values the usefulness of print and makes reprints available to the public whenever possible. This book and hundreds of thousands of others can be found in the HathiTrust, an archive of the digitized collections of many great research libraries. For access to the University of Michigan Library's digital collections, please see http://www.lib.umich.edu and for information about the HathiTrust, please visit http://www.hathitrust.org ... Read more

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Title: An Explanation of the Gnomonic Projection of the Sphere; and of Such Points of Astronomy as Are Most Necessary in the Use of Astronomical Maps: Being a Description of the Construction and Use of the Larger and Smaller Maps of the Stars; as Also of the Six Maps of the EarthPublisher: London, Baldwin and CradockPublication date: 1836Subjects: AstronomyStarsMap projectionNotes: This is an OCR reprint. There may be numerous typos or missing text. There are no illustrations or indexes.When you buy the General Books edition of this book you get free trial access to Million-Books.com where you can select from more than a million books for free. You can also preview the book there. ... Read more

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This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words.This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ... Read more

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Title: Life of Sir William Rowan Hamilton, Knt., Ll. D., D. C. L., M. R. I. A., Andrews Professor of Astronomy in the University of Dublin, and Royal Astronomer of Ireland, Etc., EtcSubtitle: Including Selections From His Poems, Correspondence, and Miscellaneous WritingsVolume: 1General Books publication date: 2009Original publication date: 1882Original Publisher: Hodges, Figgis, ... Read more

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With the general run of the philosophical atheists of the last century the notion of a God was an hypothesis. There was left an admitted possibility that the vague somewhat which went by more names than one, might be personal, intelligent, and superintendent.
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This scarce antiquarian book is a selection from Kessinger Publishing's Legacy Reprint Series. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment to protecting, preserving, and promoting the world's literature. Kessinger Publishing is the place to find hundreds of thousands of rare and hard-to-find books with something of interest for everyone! ... Read more

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The book has no illustrations or index. It may have numerous typos or missing text. However, purchasers can download a free scanned copy of the original rare book from the publisher's website (GeneralBooksClub.com). You can also preview excerpts of the book there. Purchasers are also entitled to a free trial membership in the General Books Club where they can select from more than a million books without charge. Volume: 2; Original Publisher: The Open Court Publishing Co.; Publication date: 1915; Subjects: Mathematics; Paradoxes; Trisection of angle; Circle-squaring; ... Read more

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"Or suppose a line drawn from a given point at 90, and from the same point at 60. Let each of these lines revolve on this point toward each other at an equal ratio. They will become one line at 75, and bisect the curve, which is one-sixth of the entire circle. The result, taking 16 as a diameter, gives an area of 201.072400, and a circumference of 50.2681.

"The original conception, its natural harmony, and the result, to my own mind is a demonstrative truth, which I presume it right to make known, though perhaps at the hazard of unpleasant if not uncourteous remarks."

I have added punctuation: the handwriting and spelling {11} are those of an educated person; the word irreptitious is indubitable. The whole is a natural curiosity.

The quadrature and exact area of the circle demonstrated. By Wm. Peters. 8vo. n. d. (circa 1848). ... Read more

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Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork. ... Read more

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In every age of the world there has been an established system, which has been opposed from time to time by isolated and dissentient reformers. The established system has sometimes fallen, slowly and gradually: it has either been upset by the rising influence of some one man, or it has been sapped by gradual change of opinion in the many. ... Read more

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This Elibron Classics book is a facsimile reprint of a 1842 edition published in London. ... Read more

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Subtitle: With an Index of Reference, by Which the Almanac May Be Found for Every Year, Whether in Old Stle or New, From Any Epoch, Ancient or Modern, up to A. D. 2000. With Means for Finding the Day of Any New or Full Moon From B. C. 2000 to AGeneral Books publication date: 2009Original publication date: 1851Original Publisher: Taylor, Walton, and MaberlySubjects: CalendarReference / GeneralReference / AlmanacsScience / TimeNotes: This is a black and white OCR reprint of the original. It has no illustrations and there may be typos or missing text.When you buy the General Books edition of this book you get free trial access to Million-Books.com where you can select from more than a million books for free.Excerpt: CHAPTER IV.©eeoration of QBeffe.SEVERAL allusions have already been made incidentally to the marks and inscriptions found decorating the exterior of most bells ; the subject is, however, of sufficient interest to call for a chapter to itself.In decoration, properly so called, ancient bells were as a rule much richer than modern ones, at any rate in England. It is no uncommon thing to find bands of gracefully designed moulding running round the shoulder, waist, or sound-bow of a bell. Sometimes they consist of conventional foliage or rows of fleur-de-lys ; grotesques, or figures borrowed from classical mythology, meet us in other cases ; while yet others have simple scrolls. In many instances the founder had his favourite and characteristic form of moulding, by which his bells could be identified. At Kinneff, in Kincardineshire, is a bell by Peter Ostens, of Rotterdam, dated 1679; it has a moulded band above and below the inscription, the first being a series of Cupids or cherubs with bells, seated amid the convolutions of a scroll, and the second a band of ivy, or other leaves of a similar character. A bell by the same maker was cast in 1664, for Banchory Ternan, in the same county ; in this case the lower moulding is again seen, bu... ... Read more

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Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free.This is an OCR edition with typos.Excerpt from book:APPENDIX I. TO THE THIRD ESSAY (See note I on p. 148.) De Morgan's View Of Leibniz's CHARACTER1The Leibniz of our day is either the mathematician or the metaphysician.In the first of these two characters he is coupled in the mind of the reader with Newton, as the co-inventor of what was called by himself the Differential Calculus, and by Newton the Method of Fluxions. Much might be instanced which was done by him for the pure sciences in other respects; but this one service, from its magnitude as adiscovery, and its notoriety as the cause of a great controversy, has swallowed up all the rest.1 [The following is from a biographical sketch entitled '' Leibnitz " which appeared anonymously in the Gallery of Portraits: with Memoirs (vol. vi, 1836, pp. 132-136) which was published by Charles Knight at London under the superintendence of the Society for the Diffusion of Useful Knowledge. We know from Mrs De Morgan's Memoir (p. 108), that this article was by De Morgan. "The Life of Maske- lyne," she says, " is one of a series of lives of Astronomers written by him for the Gallery of Portraits, published by C. Knight two or three years before this time (1839). They are those of Bradley, Delambre, Descartes, Dollond, Euler, Halley, Harrison, W. Herschel, Lagrange, Laplace, Leibnitz, and Maskelyne. They are bound up together, and illustrated in his own way, under the title of ' Mathematical Biography, extracted from the Gallery of Portraits, by Augustus De Morgan, H.O. M.O. P.A.U.C.A.R.U.M. L.I.T.E.R.A.R.U.M.' The letters of his literary tail were only B. A., F. R.A.S., besides those expressing membership of one or two lesser scientific societies. On account of the declaration of belief at that time required by the University, he never took his M.A. degree." On the reference... ... Read more

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This Elibron Classics book is a facsimile reprint of a 1840 edition published in London. ... Read more