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accompanying commentary and published them not as hand-cut wood engravings but as direct half-tone loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader030vdocumentsusreader030viewer20220402185e0b5749fcbe7c13dc5fb6f3html5thumbnails2jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=3Page 3button div class=ts-imageimg data-url=openresearch-ris-showed-his-pictures-as-lantern-slides-with-accompanying-commentaryhtmlpage=3 data-page=3 class=ts-thumb lazyload 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 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC 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