One of the last things Bruce McCalley did for me was to scan my copy of the book "Monopoly on Wheels" by William Greenleaf. This is a very difficult book to locate and expensive when you do.
For those of you into details and history of the Selden Patent and infringement suit against Ford you will love this book.
I have a 1 MB PDF copy if anyone is interested, simply email me at modeltcoils(at)windstream.net.
This is one of the best books on this subject.
Ron the Coilman
This book is currently being reprinted by Wayne State University Press. I bought a copy last year so I didn't subject my original to handling.
http://wsupress.wayne.edu/books/1283/Monopoly-on-Wheels