div class=ts-pagebuttonPage 1button div class=ts-image a href=https:reader040vdocumentssitereader040viewer20220119125f99f040ea9eb014080c3f1dhtml5page1jpg target=_blank amp-img class=ts-thumb alt=Page 1: Pearson Scott Foresman · 2011-09-23 · called them multiplanes Others tried to copy the way birds fly Edward Purkis Frost believed ornithopters aircraft with flapping wings src=https:reader040vdocumentssitereader040viewer20220119125f99f040ea9eb014080c3f1dhtml5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 2button div class=ts-image a href=https:reader040vdocumentssitereader040viewer20220119125f99f040ea9eb014080c3f1dhtml5page2jpg target=_blank amp-img class=ts-thumb alt=Page 2: Pearson Scott Foresman · 2011-09-23 · called them multiplanes Others tried to copy the way birds fly Edward Purkis Frost believed ornithopters aircraft with flapping wings src=https:reader040vdocumentssitereader040viewer20220119125f99f040ea9eb014080c3f1dhtml5thumbnails2jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 3button div class=ts-image a href=https:reader040vdocumentssitereader040viewer20220119125f99f040ea9eb014080c3f1dhtml5page3jpg target=_blank amp-img class=ts-thumb alt=Page 3: Pearson Scott Foresman · 2011-09-23 · called them multiplanes Others tried to copy the way birds fly Edward Purkis Frost believed ornithopters aircraft with flapping wings src=https:reader040vdocumentssitereader040viewer20220119125f99f040ea9eb014080c3f1dhtml5thumbnails3jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 4button div class=ts-image a href=https:reader040vdocumentssitereader040viewer20220119125f99f040ea9eb014080c3f1dhtml5page4jpg target=_blank amp-img class=ts-thumb alt=Page 4: Pearson Scott Foresman · 2011-09-23 · called them multiplanes Others tried to copy the way birds fly Edward Purkis Frost believed ornithopters aircraft with flapping wings src=https:reader040vdocumentssitereader040viewer20220119125f99f040ea9eb014080c3f1dhtml5thumbnails4jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 5button div class=ts-image a href=https:reader040vdocumentssitereader040viewer20220119125f99f040ea9eb014080c3f1dhtml5page5jpg target=_blank amp-img class=ts-thumb alt=Page 5: Pearson Scott Foresman · 2011-09-23 · called them multiplanes Others tried to copy the way birds fly Edward Purkis Frost believed ornithopters aircraft with flapping wings src=https:reader040vdocumentssitereader040viewer20220119125f99f040ea9eb014080c3f1dhtml5thumbnails5jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 6button div class=ts-image a href=https:reader040vdocumentssitereader040viewer20220119125f99f040ea9eb014080c3f1dhtml5page6jpg target=_blank amp-img class=ts-thumb alt=Page 6: Pearson Scott Foresman · 2011-09-23 · called them multiplanes Others tried to copy the way birds fly Edward Purkis Frost believed ornithopters aircraft with flapping wings src=https:reader040vdocumentssitereader040viewer20220119125f99f040ea9eb014080c3f1dhtml5thumbnails6jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 7button div class=ts-image a href=https:reader040vdocumentssitereader040viewer20220119125f99f040ea9eb014080c3f1dhtml5page7jpg target=_blank amp-img class=ts-thumb alt=Page 7: Pearson Scott Foresman · 2011-09-23 · called them multiplanes Others tried to copy the way birds fly Edward Purkis Frost believed ornithopters aircraft with flapping wings src=https:reader040vdocumentssitereader040viewer20220119125f99f040ea9eb014080c3f1dhtml5thumbnails7jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 8button div class=ts-image a href=https:reader040vdocumentssitereader040viewer20220119125f99f040ea9eb014080c3f1dhtml5page8jpg target=_blank amp-img class=ts-thumb alt=Page 8: Pearson Scott Foresman · 2011-09-23 · called them multiplanes Others tried to copy the way birds fly Edward Purkis Frost believed ornithopters aircraft with flapping wings src=https:reader040vdocumentssitereader040viewer20220119125f99f040ea9eb014080c3f1dhtml5thumbnails8jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 9button div class=ts-image a href=https:reader040vdocumentssitereader040viewer20220119125f99f040ea9eb014080c3f1dhtml5page9jpg target=_blank amp-img class=ts-thumb alt=Page 9: Pearson Scott Foresman · 2011-09-23 · called them multiplanes Others tried to copy the way birds fly Edward Purkis Frost believed ornithopters aircraft with flapping wings src=https:reader040vdocumentssitereader040viewer20220119125f99f040ea9eb014080c3f1dhtml5thumbnails9jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 10button div class=ts-image a 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