`  == Irises one yard high ==  Has this been discussed before? The description of yard high ``irises``? As I understand it, Fitzgerald made a mistake and wrote ``retinas``. I am sure that there is a reason why the text of this article makes the silent correction to ``irises``. But shouldn't there at least be a warning comment not to change it back to ``retinas``? Have I missed something? Or am I mistaken (it's been many years since it last read The Great Gatsby)?   `