The PGS has several "rare" books in its collection. Some of the books are indeed rare, and some are simply of very old publication date and their condition causes us to classify them as rare.
The collection is not on the open shelves with the rest of the reference books, so you have to ask for access to them. The consultant on duty at the genealogy desk can help you with that. They are kept locked in private shelves that the consultants have access to.
When you use the books we ask that you take certain precautions to preserve the books. Namely, use gloves when handling the material. Those will be provided. And by all means, be careful...some of the books are in very delicate condition.
Although the books in this collection are entered into the library catalog system, you can see a special index of them. That index is in a binder on the genealogy desk, and a consultant can help you locate it.
The collection will not be for everybody, but you never know when you will find a genealogical treasure.