Bill T wrote:

> Another interesting aspect- I read that the bees form a ice
> crystal barrier around the cluster through the moisture they give
> off which also acts as an insulator, so drying it up may lead to
> cooler bees and be counterproductive.

Can you give a source for this?  There was a vary interesting article in ABJ by
Wyatt Magnum on the winter cluster sometime last year(?).  I don't recall
anything about an ice barrier.  Perhaps Wyatt missed it too.

Thanks,
Aaron