well, there is some amazing technology here. I went to Masato's link, entered "Motherwell" in the search box, scrolled down to the 'Minstrelsy' link and got several ways to access the work...also, there was a small image which said "view the book". When I clicked the image, I got a "javascript" note saying "currently only IE and Firefox are supported for the flipbook viewer"....but when I closed that message and tried, I found that Opera 9 worked just fine, and I found myself clicking back & forth, turning pages in a virtual copy of Motherwell...in a quite readable format. Evidently, what they have done is to make a .PDF file into a clickable format....and by downloading the .PDF, you can have a copy on your computer...complete with the ability to magnify the pages to suit...

(note..this is a 63MG file. You need broadband)
Since I do not own Motherwell, I think I will go browse some more!