> Ventilation is secured by air being forced by a fan into a elongated
> plastic tube. Those hives in areas of limited air supply have been
found to be
> weak, dead, whilst those in areas of better supply fared well.

Is the fan noisy, or does it cause vibrations that the hives would
experience?  Were the hives stacked, or in a single layer?  Was the loss
on all levels, the same near the fan?

What was the building volume in ft3 per hive?

allen
http://www.honeybeeworld.com

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