I apologize because I know this is a redundant post. I could not find the various prior post that would answer all my questions. Please forgive me for once again creating a redundant thread. I purchased the entire collection during the sale seeing as it would likely never be this cheap again. Seeing as I am in seminary the resources will be valuable resources to own electronically rather than wasting time flipping through books and only being able to use said volumes in the library. With all this being said my question is before the sale ends with the four older volumes that are not in the collection. Which ones are they? While the sale is still on would you recommend adding them as well?