I'm assuming you're looking for information on a specific topic in galactic astronomy, and you mentioned "Binney Merrifield" which seems to refer to a textbook or resource by James Binney and Michael Merrifield.

The Cosmic Blueprint: Why Binney & Merrifield’s Galactic Astronomy Remains the Unchallenged Bible of the Milky Way

Selected pages * Title Page. * Table of Contents. * Index. * References. Google Books Galactic Astronomy - Princeton University Press

Despite being over two decades old, the search for a PDF of Galactic Astronomy remains high among graduate students and researchers. There are three primary reasons for this:

One of the standout features of "Galactic Astronomy" is its clear and concise writing style, which makes complex concepts accessible to readers with a range of backgrounds and expertise. The authors have also made extensive use of diagrams, illustrations, and photographs to help illustrate key concepts and observations.