Observation hives was the topic that was presented at our monthly beekeeping meeting last evening. The gentleman that gave the presentation, Dr. Dewey Caron, wrote a book about putting together an observation hive. Here is a link to his website, and the book is listed down in his publications if anyone is interested. Dr. Caron also spoke for a bit on CCD, and the research that he was participating in. Very interesting speaker if you ever get a chance to hear him. Seems that where I live, near Baltimore, Maryland, is in the middle of where a lot of that research is being done. http://ag.udel.edu/enwc/faculty/caron.html
I understand they have a great observation hive in Beltsville, about an hours drive from where I live, so I think we are going to plan an outting to see it in the next few weeks.