div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader042vdocumentssitereader042viewer2022020522575067cd1a28ab0f07ad37e3html5page1jpg target=_blank img data-url=artificial-control-of-sex-in-the-progeny-of-mammalshtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Artificial Control of Sex in the Progeny of Mammals loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentssitereader042viewer2022020522575067cd1a28ab0f07ad37e3html5thumbnails1jpg width=140 height=200 adivp© 1912 Nature Publishing Grouppdiv