div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader042vdocumentssitereader042viewer2022020405575067fc1a28ab0f07ae116ahtml5page1jpg target=_blank img data-url=international-scientific-film-association-sixth-annual-congresshtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: International Scientific Film Association: Sixth Annual Congress loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentssitereader042viewer2022020405575067fc1a28ab0f07ae116ahtml5thumbnails1jpg width=140 height=200 adivp© 1952 Nature Publishing Grouppdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imagea href=https:reader042vdocumentssitereader042viewer2022020405575067fc1a28ab0f07ae116ahtml5page2jpg target=_blank img data-url=international-scientific-film-association-sixth-annual-congresshtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: International Scientific Film Association: Sixth Annual Congress loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentssitereader042viewer2022020405575067fc1a28ab0f07ae116ahtml5thumbnails2jpg width=140 height=200 adivp© 1952 Nature Publishing Grouppdiv