div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: University of Wisconsin–MadisonimageslibrarywisceduEcoNatResEFacsPassPigeonppv51body weight Chaplin 1974 Part of the need for this apparent surplus is in maintaining src=https:reader034vdocumentssitereader034viewer20220520136029bfbb58e96f79e2651247html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 2button div class=ts-image amp-img class=ts-thumb alt=Page 2: University of Wisconsin–MadisonimageslibrarywisceduEcoNatResEFacsPassPigeonppv51body weight Chaplin 1974 Part of the need for this apparent surplus is in maintaining src=https:reader034vdocumentssitereader034viewer20220520136029bfbb58e96f79e2651247html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 3button div class=ts-image amp-img class=ts-thumb alt=Page 3: University of Wisconsin–MadisonimageslibrarywisceduEcoNatResEFacsPassPigeonppv51body weight Chaplin 1974 Part of the need for this apparent surplus is in maintaining src=https:reader034vdocumentssitereader034viewer20220520136029bfbb58e96f79e2651247html5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 4button div class=ts-image amp-img class=ts-thumb alt=Page 4: University of Wisconsin–MadisonimageslibrarywisceduEcoNatResEFacsPassPigeonppv51body weight Chaplin 1974 Part of the need for this apparent surplus is in maintaining src=https:reader034vdocumentssitereader034viewer20220520136029bfbb58e96f79e2651247html5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 5button div class=ts-image amp-img class=ts-thumb alt=Page 5: University of Wisconsin–MadisonimageslibrarywisceduEcoNatResEFacsPassPigeonppv51body weight Chaplin 1974 Part of the need for this apparent surplus is in maintaining src=https:reader034vdocumentssitereader034viewer20220520136029bfbb58e96f79e2651247html5thumbnails5jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 6button div class=ts-image amp-img class=ts-thumb alt=Page 6: University of Wisconsin–MadisonimageslibrarywisceduEcoNatResEFacsPassPigeonppv51body weight Chaplin 1974 Part of the need for this apparent surplus is in maintaining src=https:reader034vdocumentssitereader034viewer20220520136029bfbb58e96f79e2651247html5thumbnails6jpg width=142 height=106 layout=responsive amp-img divdiv