The man is trying to find

M: Excuse me, I’m trying to find articles on new methods of geological research. Can you tell me how to find it?
W: You can begin by looking into some of the specialized indexes such as the Applied Science and Technology Index.
M: What will I find in these indexes?
W: The Applied Science and Technology Index, for example, lists articles published in 297 periodicals. So you could look under "geology" and then under such subheadings as "methods of research" or "research technique", etc. You’ll find everything that was published in any of those 297 magazines and journals.
M: If I find out the listings of articles I want to read, what do I do then?
W: You should go to the appropriate abstracts to learn more about the articles and decide which ones are relevant to you.
M: Where could I find the articles?
W: If the article has appeared in the last year, check in the Periodical Reading Room. Current issues of a great many magazines are kept on the racks and shelves there, arranged alphabetically by title.
M: Can I borrow those periodicals?
W: No. But you can always copy a particular article if you want to take it home with you.
M: You’ve been very helpful and patient. I really appreciate it.