Mr. Maxwell wore out Bibles. He used an edition of the King James that was out of print, and was grateful when someone gave him their copy of that particular edition because it helped him find texts by page position.
Someone remarked (maybe in a biography) how he could pull one of the many books off a shelf and rapidly find the quote he wanted, by checking the position in which he remembered it on the page. (now we do that with a computer search)
Wouldn't it be nice to enlarge this collection of memories, all in one handy place?