Well, it's a library, not a Wikipedia article. And these don't seem to be textbooks. Frankly, I'm not shocked that there are old, 'outdated' books around. Old

Well, it's a library, not a Wikipedia article. And these don't seem to be textbooks. Frankly, I'm not shocked that there are old, 'outdated' books around. Old books might provide some perspective that to science go forward and expand, there's a place where it left from. Assuming they are in good physical condition, and their contents were solid in their time, and other such practical considerations of running a library (like limited space for books and so on) are taken into account.