We have been told that bees will even tear down worker-cells to build drone-cells in their place. This we do not believe, for we have made the experiment of furnishing a natural swarm with a hive full of drone comb and found that the bees were incapable of grasping the possibility of tearing it down to secure worker-cells. They slowly and reluctantly narrowed the mouth of the cells to the dimension of worker-cells and the queen laid worker-eggs in them.
There is no more probability of their changing worker into drone cells than the reverse. This experiment was also tried by three leading apiarists of Europe with the same result.
Dadant 'System of Beekeeping'. 1920, p.31