div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=irrigation-in-egypt-and-the-sudanhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Irrigation in Egypt and the Sudan loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentssitereader035viewer2022081807575067b51a28ab0f07acca07html5thumbnails1jpg width=140 height=200 divp© 1919 Nature Publishing Grouppdiv