<br><p><b>Identifier</b>: cu31924031218187 (<a class="external text" href="https://commons.wikimedia.org/w/index.php?title=Special%3ASearch&amp;profile=default&amp;fulltext=Search&amp;search=insource%3A%2Fcu31924031218187%2F">find matches</a>)<br><b>Title</b>: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookidcu31924031218187">A source book of problems for geometry, based upon industrial design and architectural ornament</a><br><b>Year</b>: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookyear1912">1912</a> (<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookdecade1910">1910s</a>)<br><b>Authors</b>:  <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookauthorSykes__Mabel__1868_">Sykes, Mabel, 1868-</a> <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookauthorSlaught__H__E___Herbert_Ellsworth___1861_1937">Slaught, H. E. (Herbert Ellsworth), 1861-1937</a> <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookauthorLennes__N__J___Nels_Johann___1874_">Lennes, N. J. (Nels Johann), 1874-</a><br><b>Subjects</b>:  <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/booksubjectGeometry">Geometry</a> <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/booksubjectDecoration_and_ornament">Decoration and ornament</a><br><b>Publisher</b>:  <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookpublisherBoston__Allyn_and_Bacon">Boston, Allyn and Bacon</a><br><b>Contributing Library</b>:  <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookcontributorCornell_University_Library">Cornell University Library</a><br><b>Digitizing Sponsor</b>:  <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/booksponsorMSN">MSN</a><br><br><b>View Book Page</b>: <a rel="nofollow" class="external text" href="https://archive.org/stream/cu31924031218187/cu31924031218187#page/n201/mode/1up">Book Viewer</a><br><b>About This Book</b>: <a rel="nofollow" class="external text" href="https://archive.org/details/cu31924031218187">Catalog Entry</a><br><b>View All Images</b>: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookidcu31924031218187">All Images From Book</a><br>
Click here to <a rel="nofollow" class="external text" href="https://archive.org/stream/cu31924031218187/cu31924031218187#page/n201/mode/1up"><b>view book online</b></a> to see this illustration in context in a browseable online version of this book.<br><br><b>Text Appearing Before Image:</b><br><i>Fig. 168. — From Canopy over Portail des Libraires Cathedral, Rouen, France. Porter, Vol. II, p. 266. EXERCISES204. 1. Show how to construct Fig. 168 so that Avd, BZD,CWE, etc. shall be tangent at points A, B, C, etc. 2. Prove that the circle A YZ W can be drawn tangent to A YC,BZD, and CWE. 3. If AO = r, find the areas of (a) the oval ABCY; (b) thecircle XYZW. Arts, (a) 2!(^ _ 2) ; (6) ^aCS - 2V2).</i><br><b>Text Appearing After Image:</b><br><i>Fig. 169. — Detail from the Front of Stratsburg Cathedral. Hartung, Vol. I, PI. 21. OTHER FOILED FIGURES 189 4. Construct a four-part figure like Fig. 167a. Suggestion. — In Fig. 168 omit the arcs, AYC, CWE, etc., and in-scribe circles in the four remaining ovals. Note. — A window of this design occurs in Milan Cathedral.^ 5. Find the area of the circle inscribed in one of these ovals. Ans. (3-2V2).2EXERCISES 205. 1. Give the construction for Fig. 169. Arcs FXB, AXC,BZD, etc. are tangent at points A, B, C, etc. 2. Prove that FXB and AXC intersect on the radius drawn to themidpoint of AB. Suggestion. — Prove that OH extended is the perpendicular bisectorof PQ. Since PX = QX, X lies on OH. PART 5. OTHER FOILED FIGURES 206. The strong resemblance that many of the designsof this section bear to conventionalized flower forms sug-gests that as their origin. They have been widely usedthroughout the history of ornament. SPECIAL ROSE WINDOW AND MOSAIC DESIGNSO</i><br><br><b>Note About Images</b><br></p>
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<ul><li>Source book page: <a rel="nofollow" class="external free" href="https://archive.org/stream/cu31924031218187/cu31924031218187#page/n201/mode/1up">https://archive.org/stream/cu31924031218187/cu31924031218187#page/n201/mode/1up</a></li></ul>