I got a book from the library, "Let's Build a Bee Hive" by
Wilbert R. Miller, copyright 1976. I contains plans for building
three things I haven't seen mentioned much in other books I've
read.
 
        1. Slatted Rack - placed below the brood chamber it is
supposed to give better egg laying, less entrance congestion.
 
        2. Follower Board - the idea being that most queens won't
lay in frames next to the wall, so the follower boards provide
insulation on each wall for the reamining 9 frames.
 
        3. Cluster Rack - used between frames to provide cluster
room for the bees and cuts down on swarming activity.
 
 
        Does anyone have any experience or anecdotal knowledge
with any of these devices, either brought or constructed?
 
        Thanks