Hi Barbara. I have the same thing noted in my Intro to Braille Math -- and there is no errata for that section in the Nemeth Code. The note I have in my student book is that you can't begin on line 2. If there is no running head the arrangement would begin on line 1 and if there is a running head the arrangement would begin on line 3. But the restriction would still apply because if the arrangment is too wide to fit on line 1 you would not be able to drop it down and start it on line 2 because the necessary blank cells would not be there. I think it's just a semantics thing.