div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: openresearch-repositoryanueduau · Ris showed his pictures as lantern slides with accompanying commentary and published them not as hand-cut wood engravings but as direct half-tone src=https:reader030vdocumentsusreader030viewer20220402185e0b5749fcbe7c13dc5fb6f3html5thumbnails1jpg 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: openresearch-repositoryanueduau · Ris showed his pictures as lantern slides with accompanying commentary and published them not as hand-cut wood engravings but as direct half-tone src=https:reader030vdocumentsusreader030viewer20220402185e0b5749fcbe7c13dc5fb6f3html5thumbnails2jpg 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: openresearch-repositoryanueduau · Ris showed his pictures as lantern slides with accompanying commentary and published them not as hand-cut wood engravings but as direct half-tone src=https:reader030vdocumentsusreader030viewer20220402185e0b5749fcbe7c13dc5fb6f3html5thumbnails3jpg 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: openresearch-repositoryanueduau · Ris showed his pictures as lantern slides with accompanying commentary and published them not as hand-cut wood engravings but as direct half-tone src=https:reader030vdocumentsusreader030viewer20220402185e0b5749fcbe7c13dc5fb6f3html5thumbnails4jpg 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: openresearch-repositoryanueduau · Ris showed his pictures as lantern slides with accompanying commentary and published them not as hand-cut wood engravings but as direct half-tone src=https:reader030vdocumentsusreader030viewer20220402185e0b5749fcbe7c13dc5fb6f3html5thumbnails5jpg 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: openresearch-repositoryanueduau · Ris showed his pictures as lantern slides with accompanying commentary and published them not as hand-cut wood engravings but as direct half-tone src=https:reader030vdocumentsusreader030viewer20220402185e0b5749fcbe7c13dc5fb6f3html5thumbnails6jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 7button div class=ts-image amp-img class=ts-thumb alt=Page 7: openresearch-repositoryanueduau · Ris showed his pictures as lantern slides with accompanying commentary and published them not as hand-cut wood engravings but as direct half-tone src=https:reader030vdocumentsusreader030viewer20220402185e0b5749fcbe7c13dc5fb6f3html5thumbnails7jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 8button div class=ts-image amp-img class=ts-thumb alt=Page 8: openresearch-repositoryanueduau · Ris showed his pictures as lantern slides with accompanying commentary and published them not as hand-cut wood engravings but as direct half-tone src=https:reader030vdocumentsusreader030viewer20220402185e0b5749fcbe7c13dc5fb6f3html5thumbnails8jpg width=142 height=106 layout=responsive amp-img divdiv