[Edward Tinker]

What the above guys alluded to, is that many of the older books have out and out wrong things in them.

At the time, they were thought to be correct, or the leading theory at the time, but time has shown them to have errors.

The newer a book, the less likely there will be glaring errors, but the older the book, there might be some obvious errors, known t many collectors, but not newer collectors.

{I too like Datig and Jones, as they are some of the first books!}