Books with author William Edwards

This is a pre-1923 historical reproduction that was curated for quality. Quality assurance was conducted on each of these books in an attempt to remove books with imperfections introduced by the digitization process. Though we have made best efforts - the books may have occasional errors that do not impede the reading experience. We believe this work is culturally important and have elected to bring the book back into print as part of our continuing commitment to the preservation of printed works worldwide. This text refers to the Bibliobazaar edition.

This book was originally published prior to 1923, and represents a reproduction of an important historical work, maintaining the same format as the original work. While some publishers have opted to apply OCR (optical character recognition) technology to the process, we believe this leads to sub-optimal results (frequent typographical errors, strange characters and confusing formatting) and does not adequately preserve the historical character of the original artifact. We believe this work is culturally important in its original archival form. While we strive to adequately clean and digitally enhance the original work, there are occasionally instances where imperfections such as blurred or missing pages, poor pictures or errant marks may have been introduced due to either the quality of the original work or the scanning process itself. Despite these occasional imperfections, we have brought it back into print as part of our ongoing global book preservation commitment, providing customers with access to the best possible historical reprints. We appreciate your understanding of these occasional imperfections, and sincerely hope you enjoy seeing the book in a format as close as possible to that intended by the original publisher.

This scarce antiquarian book is a facsimile reprint of the original. 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 for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions that are true to the original work.

This is a reproduction of a book published before 1923. 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.

This is a pre-1923 historical reproduction that was curated for quality. Quality assurance was conducted on each of these books in an attempt to remove books with imperfections introduced by the digitization process. Though we have made best efforts - the books may have occasional errors that do not impede the reading experience. We believe this work is culturally important and have elected to bring the book back into print as part of our continuing commitment to the preservation of printed works worldwide.

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 Excerpt: ...spherical candle-power for each. Macbeth's "Polar Flux" Paper.--In the method of determining mean spherical intensities just discussed it will be seen that the spherical area surrounding the source of light was divided into zones of equal areas and the candle-power in the direction of the zonal centers of these areas assumed as the average for that zone. This method forms the basis of Macbeth's "polar flux" paper, which is the ordinary polar coordinate paper on which are placed the radial lines representing the zonal centers of 20 zones of equal areas. The construction of this paper is shown in Fig. 87. The vertical distribution curves may be plotted as usual. The values of the candle-power read along these additional lines shown dotted in the figure, and the sum of these readings divided by the number of readings will give approxi 180',---.-165 Fig. 87.--Construction of Macbeth's "polar flux" paper. mately the average candle-power throughout the zones which they represent. In order to use this method on polar curves constructed on ordinary polar coordinate paper, these radial lines may be drawn as in Fig. 88,1 on transparent celluloid of convenient size, to place over the polar curves. The values of candle-power may be read and the results determined as on the "polar flux" diagram. 1 Mum. Eng., N. Y., Vol. 3, p. 27, Mar., 1908. The Kennelly Diagram.--The Kennelly diagram possesses the advantage of yielding the value of the mean spherical intensity in terms of a linear quantity. Moreover, only an angle protractor and a pair of compasses are necessary for its construction. This method consists in determining graphically an evolute from the polar curve of the luminous source, together with its involute and then projecti...

This is a pre-1923 historical reproduction that was curated for quality. Quality assurance was conducted on each of these books in an attempt to remove books with imperfections introduced by the digitization process. Though we have made best efforts - the books may have occasional errors that do not impede the reading experience. We believe this work is culturally important and have elected to bring the book back into print as part of our continuing commitment to the preservation of printed works worldwide. This text refers to the Bibliobazaar edition.