So I cut some foundation into strips. (It looks like this.)
And I glued strips of foundation onto the inside of the bell jar.
Then I took it back down to the hive and put it back.
BELLJAR Postscript
The Birdchick had looked at the photos of the belljar I'd linked to in the last post more closely than I had, and she asked whether I should have put some kind of foundation in, to get the bees started. On Twitter Teresa Neves pointed me to http://turlough.blogspot.com/2007/07/will-they-or-wont-they.html where we learn explicitly that, yes, strips of foundation were used.
So I cut some foundation into strips. (It looks like this.)
And I glued strips of foundation onto the inside of the bell jar.
Then I took it back down to the hive and put it back.
So I cut some foundation into strips. (It looks like this.)
And I glued strips of foundation onto the inside of the bell jar.
Then I took it back down to the hive and put it back.