Bottom margin vs. descenders question

[Peter Flynn]

On 25/06/2020 14:00, Peter Flynn wrote:
[...]
> I am not aware of any official typesetting rules for this unless you
>  mean Hart's Rules (OUP) or Turabian (US) or similar. It's been many
>  decades since I looked, but if you can get a copy you could check.
> Or call someone at OUP (I am asking).

I had one response from a former OUP editor, to say that he would expect 
descenders on the bottom line to be completely above the bottom margin 
bounds of a page.

Peter