From Natural Fertilization to Bokanovskikication

To the Editor: Shades of Naziism, the old ghosts are raised again! Dr. Kass's article strikes one as being more fit for a debating club than a scientific journal. His implications are that men such as Steptoe and Edwards, and Shettles, are rushing ahead blindly, and risks be damned. He states, “No attempts have been made to detect defects that might appear at later times or lesser abnormalities apparent even at birth … Most genetic tests cannot be done on a given embryo without damaging it …” This is just not correct. Gardner and Edwards, (“Control of the Sex Ratio.