let me see: that would be four thousand miles down, i think --' -lrb- for, you see, alice had learnt several things of this sort in her lessons in the schoolroom, and though this was not a very good opportunity for showing off her knowledge, as there was no one to listen to her, still it was good practice to say it over -rrb-' -- yes, that's about the right distance -- but then i wonder what latitude or longitude i've got to?'